09-0747 wk ukiah draft fm and ii report
TRANSCRIPT
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SANITARY SEWER FLOW MONITORING
AND INFLOW / INFILTRATION STUDY
City of Ukiah
June 2010
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FLOW MONITORING AND
INFLOW / INFILTRATION STUDY
Prepared for
Prepared by
June 2010
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City of UkiahFlow Monitoring and Inflow / Infiltration Study
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TABLE OF CONTENTS
EXECUTIVE SUMMARY........................................................................................................................ 1
INTRODUCTION .................................................................................................................................... 5
METHODS AND PROCEDURES........................................................................................................... 7
Confined Space Entry ......................................................................................................................... 7
Flow Meter Installation ........................................................................................................................ 8
RAINFALL RESULTS............................................................................................................................. 9
Rain Gauge Triangulation ................................................................................................................. 10
STORM EVENT CLASSIFICATION ..................................................................................................... 12
FLOW MONITORING RESULTS SUMMARY...................................................................................... 15
Average Dry Weather Flows ............................................................................................................. 15
Inflow / Infiltration: General Methods ................................................................................................ 17
Graphical Identification of I&I Components................................................................................... 19
Analysis Techniques ..................................................................................................................... 19
Inflow Analysis .................................................................................................................................. 22 GWI (Groundwater Infiltration) Analysis ...........................................................................................25
RDI (Rain Dependent Infiltration) Analysis ....................................................................................... 27
Combined I&I Analysis...................................................................................................................... 30
Pipeline Capacity Analysis................................................................................................................ 33
SYNTHETIC HYDROGRAPHS ............................................................................................................ 35
Design Storm ....................................................................................................................................36
RECOMMENDATIONS ........................................................................................................................38
TABLES
Table 1. Flow Monitoring and I&I Results Summary .............................................................................. 1
Table 2. List of Flow Monitoring and Rainfall Monitoring Sites .............................................................. 5
Table 3. IDW Method (Sample) ............................................................................................................ 11
Table 4. Rain Gauge Distribution by Basin ..........................................................................................11
Table 5. Peak Measured Rainfall Densities per Hourly Period ............................................................ 13
Table 6. Rain Event Classification per Rain Gauge ............................................................................. 14
Table 7. Dry Weather Flow Summary ..................................................................................................16
Table 8. Inflow Analysis Summary .......................................................................................................22
Table 9. Excess Groundwater Infiltration Rates above Typical Rate ................................................... 26
Table 10. Infiltration Analysis Summary ............................................................................................... 27
Table 11. Combined I&I Analysis Summary......................................................................................... 30
Table 12. Capacity Analysis Summary................................................................................................. 33 Table 13. 10-Year, 10-Day Design Storm Data Summary ................................................................... 37
FIGURES
Figure 1. Inflow Rankings Temperature Map ........................................................................................ 2
Figure 2. RDI Rankings Temperature Map ...........................................................................................3
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Figure 3. City of Ukiah Flow and Rain Monitoring Locations ................................................................6
Figure 4. Typical Flow Meter Installation ............................................................................................... 8
Figure 5. Rainfall Activity over Flow Monitoring Period ......................................................................... 9
Figure 6. Rainfall Accumulation Plots.................................................................................................... 9
Figure 7. Rainfall Inverse Distance Weighting Method ....................................................................... 10
Figure 8. NOAA Northern California Rainfall Frequency Map............................................................. 12 Figure 9. Ukiah Rain Event Frequency Map .......................................................................................13
Figure 10. Ukiah Storm Event Classification: Rain Gauge West ........................................................ 14
Figure 11. Site 1: Average Dry Weather Flow..................................................................................... 15
Figure 12. Typical Sources of Infiltration and Inflow............................................................................ 18
Figure 13. Inflow / Infiltration Graphical Response Patterns ............................................................... 19
Figure 14. I&I Flow Graph for Basin 4 ................................................................................................. 21
Figure 15. Inflow Indicator Bar Graphs................................................................................................ 23
Figure 16. Inflow Rankings Temperature Map .................................................................................... 24
Figure 17. Groundwater Infiltration Sample Figure ............................................................................. 25
Figure 18. Peak and Minimum Flow Ratios vs. ADWF ....................................................................... 26
Figure 19. RDI Indicator Bar Graphs ................................................................................................... 28 Figure 20. RDI Rankings Temperature Map .......................................................................................29
Figure 21. Combined I&I Indicator Bar Graphs ................................................................................... 31
Figure 22. Combined I&I Rankings Temperature Map........................................................................ 32
Figure 23. Capacity Rankings: Peaking Factor and d/D Ratio by Site................................................ 34
Figure 24. Basin 3: Synthetic Hydrograph........................................................................................... 35
Figure 25. 10-Year, 10-Day Design Storm .......................................................................................... 36
Figure 26. Basin 3: 10-Year, 10-Day Design Storm ............................................................................ 37
Figure 27. Inflow Temperature Map: Peak I&I per IDM..................................................................... A-1
Figure 28. Inflow Temperature Map: Peak I&I per ACRE ................................................................. A-2
Figure 29. Inflow Temperature Map: Peak I&I per ADWF................................................................. A-3
Figure 30. RDI Temperature Map: Feb 2 Infiltration Rate per IDM................................................... A-4 Figure 31. RDI Temperature Map: Feb 2 Infiltration Rate per ACRE................................................ A-5
Figure 32. RDI Temperature Map: Feb 2 Infiltration Rate per ADWF............................................... A-6
Figure 33. Combined I&I Temperature Map: Total I&I per IDM ........................................................ A-7
Figure 34. Combined I&I Temperature Map: Total I&I per ACRE..................................................... A-8
Figure 35. Combined I&I Temperature Map: Total I&I per ADWF .................................................... A-9
APPENDICES
Appendix A: Temperature Maps
Appendix B: Flow Monitoring Sites: Data, Graphs, Information
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EXECUTIVE SUMMARY
Flow Monitoring Results
V&A has completed sanitary sewer flow monitoring, rainfall monitoring and inflow and infiltration (I&I)
analysis within the City of Ukiah, California. Flow, pump station and rainfall monitoring occurred over a
3-month period from January 16, 2010 to April 9, 2010 at 9 open channel flow monitoring sites and 2
pump stations. Table 1 summarizes the flow monitoring and infiltration and inflow results for the flow
monitoring sites. Figure 1 and Figure 2 show temperature maps summarizing the basin rankings for
inflow and rain dependent infiltration, respectively. The following results from this project are noted:
Inflow: Basin 3A has the highest inflow.
Groundwater Infiltration (GWI): Basin 2 has the highest groundwater infiltration rates(during dry weather flow).
Rain Dependent Infiltration (RDI): Basin 3A has the highest rain dependent infiltrationrates.
Capacity (Peaking Factor): All sites were above the typical design threshold limit forpeaking factor.
Capacity (d/D Ratio): The monitoring sites for Basins 3 and 8-1 had d/D ratios that exceedthe common threshold value for d/D ratio. None of the flow monitoring sites reached asurcharged condition.
Table 1.
Flow Monitoring and I&I Results Summary
Site 2009 – 2010 Study ResultsIsolated BasinI&I Rankings
10-Year, 24-HourDesign Storm
ResponseLocation
ADWF(mgd)
PeakI&I
RateA (mgd)
Total
Infiltration(gallons)
A
PeakingFactor
d/DRatio
Overall
InflowRank
Overall
RDIRank
Peak
Flow(mgd)
PeakingFactor
Basin 2 0.25 0.84 6,081,000 4.50 0.51 6 10 1.66 6.74
Basin 3 0.41 2.81 24,322,000 7.97 0.81 2 2 5.01 12.28
Basin 3AB
0.30 2.12 18,101,000 n/a n/a 1 1 3.68 12.35
Basin 3B 0.11 0.69 6,221,000 7.33 0.56 4 6 1.34 11.89
Basin 4 0.49 3.87 27,826,000 8.99 0.67 3 3 8.15 16.38
Basin 5 0.016 0.096 737,000 11.35 n/a 11 11 0.23 14.20
Basin 6 0.20 0.78 5,000,000 5.07 0.43 10 9 1.86 9.31
Basin 7A 0.11 0.37 1,679,000 4.58 0.70 12 12 1.10 9.82
Basin 7B 0.022 0.062 178,000 4.13 n/a 13 13 0.18 8.36
Basin 8B
0.55 1.56 12,835,000 3.88 n/a 7 6 3.68 6.59
Basin 8-1 0.33 0.85 8,211,000 3.78 0.79 9 4 1.74 5.37
Basin 8-2 0.23 0.80 4,624,000 4.93 0.36 5 8 2.05 8.77
Site 9 2.12 9.88 83,360,000 5.79 0.66 8 5 20.04 9.48A
I&I Analysis data taken from stacked rainfall events occurring from January 16 through 27, 2010.B
Basins 3A and 8 were not directly monitored. A subtraction or addition of flows was required to analyze these basins.
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Figure 1. Inflow Rankings Temperature Map
Inflow Rank ≤ 1
Inflow Rank 2 - 3
Inflow Rank 4 - 5
Inflow Rank 6 - 7
Inflow Rank 8 - 9
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Figure 2. RDI Rankings Temperature Map
RDI Rank ≤ 1
RDI Rank 2 - 3
RDI Rank 4 - 5
RDI Rank 6 - 7
RDI Rank 8 - 9
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Recommendations
V&A advises that future I&I reduction plans consider the following recommendations:
1. Determine I&I Reduction Program: The City should examine its I&I reduction needs todetermine a future I&I reduction program.
a. If peak flows, sanitary sewer overflows, and pipeline capacity issues are of greaterconcern, then priority can be given to investigate and reduce sources of inflow within thebasins with the greatest inflow problems.
b. If total infiltration and general pipeline deterioration are of greater concern, then theprogram can be weighted to investigate and reduce sources of infiltration within thebasins with the greatest infiltration problems.
2. I&I Investigation Methods: Potential I&I investigation methods include the following:
a. smoke testing
b. mini-basin flow monitoring
c. night-time reconnaissance work to (1) investigate and determine direct point sources ofinflow, and (2) determine the areas and/or pipe reaches responsible for high levels ofinfiltration contribution.
d. CCTV inspection
3. I&I Reduction Cost Effective Analysis: The City should conduct a study to determine whichis more cost-effective: (1) locating the sources of infiltration and inflow and systematicallyrehabilitating or replacing the faulty pipelines; or (2) continued treatment of the additionalrainfall dependent I&I flow.
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INTRODUCTION
V&A has completed sanitary sewer flow monitoring, rainfall monitoring and inflow and infiltration (I&I)
analysis within the City of Ukiah (City), California. Flow monitoring occurred over the 3-month period
from January 16, 2010 to April 9, 2010 at nine open channel flow monitoring sites and three pump
stations. Rainfall data was recorded at three locations within the City. The flow monitoring sites with
associated basin data and information are listed in Table 2 and illustrated in Figure 3. Detailed
descriptions of the individual flow monitoring sites, including photographs, are included in Appendix B .
Table 2.
List of Flow Monitoring and Rainfall Monitoring Sites
LocationPipeSize(in)
AddressBasinSize
(acres)
BasinPipe
Length
(IDM)
Basin 2 10 MH 1043: Norgard Lane at Townsend Lane 387 41.5
Basin 3 18 MH 750: Frontage Road; off of Talmage Road 493 96.1
Basin 3A n/a Subtraction of flows between Basin 3 and Basin 3B 311 63.8
Basin 3B 12MH 959: South State Street between Washington Avenueand Wabash Avenue
182 32.3
Basin 4 21 MH 722: E Gobbi Street; west of Babcock Lane 682 147.5
Basin 5 n/aVichy Springs PS: Vichy Springs Road and RedemeyerRoad
622 21.2
Basin 6 15 MH 667: E Perkins Street; west of Oak Manor Drive 528 84.2
Basin 7A 15MH 120 North: Ford Road; under the US 101 HighwayOverpass
719 72.3
Basin 7B n/a El Dorado PS: West of Redemeyer Road and El DoradoRoad; in wine field near creek 179 17.8
Basin 8A
15, 15
This basin was monitored at two locations:
• Basin 8-1: MH 120 West: Ford Road; under the US101 Highway Overpass (409 acres, 59.7 IDM);
• Basin 8-2: MH 311: Brush Street; east of Orr Street(282 acres, 41.3 IDM)
691 101.0
Site 9 36MH 1035: Airport Road. This location monitoredapproximately 90% of the entire system flow. This sitedid not capture Basins 1B and 2.
5,286 733.2
IDM = total pipe length measured in inch-diameter miles (for example: 1 mile of 6-inch pipe = 1 x 6 = 6 IDM)
Notes:A
For calculations later in this report, the basin size and pipe length for Basins 8-1 and 8-2 were
assumed to have the same distribution as per the ratio of their respective baseline flows.
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Figure 3. City of Ukiah Flow and Rain Monitoring Locations
Metering Site Location and Label
Rain Gauge Location and Label
Isolated Basin
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METHODS AND PROCEDURES
Confined Space Entry
A confined space (Photo 1) is defined as any space that is large enough and so configured that a
person can bodily enter and perform assigned work, has limited or restricted means for entry or exit
and is not designed for continuous employee occupancy. Title 8, Section 5158 of the California Code
of Regulations provides the guidelines and rules for working in these environments. In general, the
atmosphere must be constantly monitored for sufficient levels of oxygen (19.5 to 23.0%), and the
absence of Hydrogen Sulfide (H2S) gas, Carbon Monoxide (CO) gas and LEL levels. A typical
confined space entry crew has members with OSHA defined responsibilities of: Entrant, Attendant
and Supervisor. The Entrant is the individual performing the work. He/she is equipped with the
necessary personal protective equipment needed to perform the job safely, including a personal 4-
gas monitor (Photo 2). If it is not possible to maintain line-of-sight with the Entrant, then more
Entrants are required until line-of-sight can be maintained. The Attendant is responsible for
maintaining contact with the entrant(s) to monitor the atmosphere on another 4-gas monitor and
maintaining records of all Entrants, if there is more than one. The Supervisor develops the safe work
plan for the job at hand prior to entering.
Photo 1. Confined Space Entry Photo 2. Typical Personal 4-Gas
Monitor
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Flow Meter Installation
One Sigma 910 flow meter and eight Isco 2150 flow meters were installed by V&A in the sewer lines
shown in Figure 3. Sigma and Isco meters use a pressure transducer to collect depth readings and
ultrasonic Doppler sensors on the probe to determine the average fluid velocity. Figure 4 shows a
sketch of a typical flow meter installation.
Figure 4. Typical Flow Meter Installation
Continuous depth and velocity readings were recorded by the flow meters in 15-minute increments
and downloaded into a computer spreadsheet program where the data could be analyzed and made
report ready. Manual level and velocity readings were taken in the field during the flow meter
installation and again when the flow meters were removed. These readings were compared to the
readings of the flow meters to ensure proper calibration and accuracy.
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RAINFALL RESULTS
Three rain gauges were installed within the City of Ukiah (refer to Figure 3). Figure 5 graphically
displays the rainfall events recorded over the flow monitoring period (RG South data illustrated).
Figure 6 shows the rain accumulation plot of the rain gauges, as well as the historical average
rainfalls in the City during this project duration1. For the region, rainfall totals were approximately
between 110% and 137% of normal levels during this time period.
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
1 6 - J a n
1 8 - J a n
2 0 - J a n
2 2 - J a n
2 4 - J a n
2 6 - J a n
2 8 - J a n
3 0 - J a n
1 - F e b
3 - F e b
5 - F e b
7 - F e b
9 - F e b
1 1 - F e b
1 3 - F e b
1 5 - F e b
1 7 - F e b
1 9 - F e b
2 1 - F e b
2 3 - F e b
2 5 - F e b
2 7 - F e b
1 - M a r
3 - M a r
5 - M a r
7 - M a r
9 - M a r
1 1 - M a r
1 3 - M a r
1 5 - M a r
1 7 - M a r
1 9 - M a r
2 1 - M a r
2 3 - M a r
2 5 - M a r
2 7 - M a r
2 9 - M a r
3 1 - M a r
2 - A p r
4 - A p r
6 - A p r
8 - A p r
R a i n ( i n
c h e s p e r h o u r )
12.54Total Rainfall over Period: 23.26 inches
Figure 5. Rainfall Activity over Flow Monitoring Period
0.02.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
20.0
22.0
24.0
26.0
1 6 - J a n
1 8 - J a n
2 0 - J a n
2 2 - J a n
2 4 - J a n
2 6 - J a n
2 8 - J a n
3 0 - J a n
1 - F e b
3 - F e b
5 - F e b
7 - F e b
9 - F e b
1 1 - F e b
1 3 - F e b
1 5 - F e b
1 7 - F e b
1 9 - F e b
2 1 - F e b
2 3 - F e b
2 5 - F e b
2 7 - F e b
1 - M a r
3 - M a r
5 - M a r
7 - M a r
9 - M a r
1 1 - M a r
1 3 - M a r
1 5 - M a r
1 7 - M a r
1 9 - M a r
2 1 - M a r
2 3 - M a r
2 5 - M a r
2 7 - M a r
2 9 - M a r
3 1 - M a r
2 - A p r
4 - A p r
6 - A p r
8 - A p r
R a i n ( i n c h e s )
RG South RG East
RG West Historical Average23.26
17.64
24.09
19.41
Figure 6. Rainfall Accumulation Plots
1 Historical data was taken from the WRCC at Station 049122 in Ukiah, California and can be found at:
http://www.wrcc.dri.edu/summary/climsmnca.html
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Rain Gauge Triangulation
The rainfall affecting the sanitary sewer collection system basins must be calculated based on the
proximity to the rain gauge locations. The mean precipitation for the sanitary sewer collection system
was calculated by taking data from seven local rain gauges and using the Inverse Distance Weighting
(IDW) method. The IDW is an interpolation method that assumes the influence of each rain gauge
location diminishes with distance. The center of a sanitary sewer collection system was identified and
a weighted average was taken of the precipitation data from nearby rain gauge locations. The IDW
function is as follows:
∑=
p
p
d
d d weight 1
1
)( , where: d = distance p = power (p > 0)
The value of p is user defined. The most common choice for hydrological studies of watershed areas
is p = 2. Figure 7 and Table 3 illustrate the IDW method (sample data). The rain gauge distribution as
calculated for each flow monitoring site is shown in Table 4.
Figure 7. Rainfall Inverse Distance Weighting Method
2.17 miles
1.75 miles
Basin Boundary
Rain Gauge A
Rain Gauge B
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Table 3.
IDW Method (Sample)
Rain GaugeDistance(miles) 2
1d
Weight
(%)
Rain Gauge A 2.17 0.2124 39.4%
Rain Gauge B 1.75 0.3265 60.6%
Totals 0.5389 100%
Table 4.
Rain Gauge Distribution by Basin
SiteRain
GaugeSouth
RainGaugeWest
RainGaugeEast
Basin 2 98.8% 0.7% 0.5%
Basin 3 51.0% 32.1% 16.9%
Basin 3A 51.0% 32.1% 16.9%
Basin 3B 73.5% 17.2% 9.3%
Basin 4 11.8% 66.9% 21.3%
Basin 5 0.0% 0.0% 100.0%
Basin 6 0.0% 84.9% 15.1%
Basin 7A 0.0% 44.6% 55.4%
Basin 7B 0.0% 0.0% 100.0%
Basin 8 0.0% 70.0% 30.0%
Basin 8-1 0.0% 66.1% 33.9%
Basin 8-2 0.0% 74.7% 25.3%
Site 9 10.2% 55.8% 34.0%
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STORM EVENT CLASSIFICATION
It is important to classify the relative size of the major storm event that occurs over the course of a
flow monitoring period2. Storm events are classified by intensity and duration. Based on historical
data, frequency contour maps for given intensity and duration storm events have been developed by
the National Oceanic and Atmospheric Administration (NOAA) for all areas within the continental
United States. For example, the NOAA Rainfall Frequency Atlas3
classifies a 10-year, 24-hour storm
event in Ukiah as 5.29 inches (Figure 8). This means that in any given year, there is a 10% chance
that 5.29 inches of rain will fall in any 24-hour period.
Figure 8. NOAA Northern California Rainfall Frequency Map
From the NOAA frequency maps, the rainfall totals for 1-hour, 6-hour and 24-hour, 2-day, 4-day, 7-
day and 10-day period durations, and 2-year, 5-year, 10-year, 25-year, 50-year, and 100-year period
2Sanitary sewers are often designed to withstand I&I contribution to sanitary flows for specific sized “design” storm events.
3NOAA Western U.S. Precipitation Frequency Maps Atlas 2, 1973 <http://www.wrcc.dri.edu/pcpnfreq.html>.
Rainfall in Tenths of Inch
Ukiah
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intensities, were plotted to develop a rain event frequency map specific to the rainfall monitoring site,
shown in Figure 9.
2
5
10
25
50100
1921681441209672 216 2404824181261
0
5
10
15
20
Duration (hours)
I n c h e s o f R a i n
Figure 9. Ukiah Rain Event Frequency Map
The highest rainfall in a 1-hour period was 0.32 inches and occurred during Event 2. The highest
rainfall in any 24-hour period was 1.20 inches and occurred during Event 4. Peak measured
densities per hourly periods were calculated for each rainfall event, as summarized in Table 5.
Superimposing the peak measured densities for the storm events on the Rainfall Storm Event
Classification Chart determines the classification of each storm event, shown in Figure 10.
Table 5.
Peak Measured Rainfall Densities per Hourly Period
RainfallDuration
RainGaugeSouth
(inches)
RainGaugeWest
(inches)
RainGaugeEast
(inches)
1 hour 0.41 0.38 0.28
6 hours 1.71 1.59 1.17
24 hours 3.10 2.77 2.22
2 days 5.38 4.71 3.72
4 days 8.64 8.09 6.27
7 days 9.94 9.71 7.51
10 days 12.54 12.38 9.46
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2
5
10
25
50100
1921681441209672 216 2404824181261
0
5
10
15
20
Duration (hours)
I n c h e s o f R a i n
January 17 - 26, 2010
Figure 10. Ukiah Storm Event Classification: Rain Gauge West
At Rain Gauge West, the rainfall events of January 17 to 26, 2010 were less than 2 year events from
the 1-hour to 24-hour durations, but were greater than 2-year events for the 4-day and 10-day
duration. Table 6 summarizes the classifications for each rain gauge at different durations.
Table 6.
Rain Event Classification per Rain Gauge
RainfallDuration
RainGaugeSouth
(inches)
RainGaugeWest
(inches)
RainGaugeEast
(inches)
1 hour < 2 yr < 2 yr < 2 yr
6 hours < 2 yr < 2 yr < 2 yr
24 hours < 2 yr < 2 yr < 2 yr
2 days 2 yr < 2 yr < 2 yr
4 days 3.5 yr 2.5 yr < 2 yr
7 days 2 yr < 2 yr < 2 yr
10 days 4 yr 4 yr < 2 yr
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FLOW MONITORING RESULTS SUMMARY
Average Dry Weather Flows
Weekday and weekend flow patterns vary and must be separated when determining average dry
weather flows. For this project, the flow meters were installed immediately prior to the largest rainfall
event of the season. After this rainfall event, flows did not return to baseline levels for many of the
flow monitoring sites. The early morning flows on January 17, 2010 (prior to the rainfall event) were
used to establish baseline flows; daily diurnal flow patterns were established during the days least
affected by rainfall later in the flow monitoring period.
Figure 11 shows a sample of the average dry weather flow graph that was generated for Site 1.
Table 7 lists the average dry weather flow (ADWF) and average peak dry weather flows (PDWF)
recorded during this study for the flow monitoring sites. Detailed graphs of the flow monitoring data on
a site-by-site basis are included in Appendix B .
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00
Hour
F l o w
( m g d )
Weekday
Weekend
Weekday: Ave = 0.50 mgd Peak = 0.68 mgd at 10:45 Weekend: Ave = 0.48 mgd Peak = 0.70 mgd at 11:00
Figure 11. Site 1: Average Dry Weather Flow
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Table 7.
Dry Weather Flow Summary
Average DryWeather Flow
(mgd)
Average Peak DryWeather Flow
(mgd)
PDWF/ADWFRatioLocation
Wkday Wkend
Weekend/Weekday
Ratio Wkday Wkend Wkday Wkend
Basin 2 0.25 0.25 1.00 0.30 0.35 1.21 1.41
Basin 3 0.41 0.42 1.02 0.54 0.65 1.32 1.55
Basin 3A 0.30 0.30 1.00 0.38 0.45 1.26 1.50
Basin 3B 0.11 0.12 1.03 0.16 0.20 1.38 1.69
Basin 4 0.50 0.48 0.96 0.68 0.70 1.37 1.47
Basin 5 0.016 0.017 1.06 0.033 0.031 2.07 1.83
Basin 6 0.20 0.20 1.00 0.32 0.35 1.60 1.76
Basin 7A 0.11 0.11 0.94 0.16 0.17 1.40 1.63
Basin 7B 0.021 0.024 1.11 0.041 0.050 1.90 2.10
Basin 8 0.56 0.54 0.98 0.72 0.79 1.29 1.45
Basin 8-1 0.32 0.34 1.03 0.44 0.48 1.35 1.42
Basin 8-2 0.23 0.21 0.89 0.35 0.35 1.50 1.67
Site 9(90% of System)
2.11 2.14 1.01 2.72 2.90 1.29 1.36
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Inflow / Infiltration: General Methods
Inflow / Infiltration (I&I) consists of storm water and groundwater which enters the sewer system
through pipe defects and improper storm drainage connections, defined as follows:
Inflow
Definition: Storm water inflow is defined as water discharged into the sewer system,including private sewer laterals, from direct connections such as downspouts, yard and areadrains, holes in manhole covers, cross connections from storm drains, or catch basins.
Impact: This component of I&I creates a peak flow problem in the sewer system and oftendictates the required capacity of downstream pipes and transport facilities to carry these peakinstantaneous flows. Because the response and magnitude of inflow is tied closely to theintensity of the storm event, the short-term peak instantaneous flows may result insurcharging and overflows within a collection system. Severe inflow may result in sewagedilution, resulting in upsetting the biological treatment (secondary treatment) at the treatmentfacility.
Cost of Source Identification and Removal: Inflow locations are usually less difficult to findand less expensive to correct. These sources include direct and indirect cross connectionswith storm drainage systems, roof downspouts, and various types of surface drains.Generally, the costs to identify and remove sources of inflow are low compared to potentialbenefits to public health and safety, or the costs of building new facilities to convey and treatthe resulting peak flows.
Graphical Identification: Inflow is usually recognized graphically by large magnitude, shortduration spikes immediately following a rain event.
Infiltration
Definition: Infiltration is defined as water entering the sanitary sewer system throughdefective pipes, pipe joints, and manhole walls, and may include cracks, offset joints, root
intrusion points, and broken pipes.
Impact: Infiltration typically creates long-term annual volumetric problems. The major impactis the cost of pumping and treating the additional volume of water, and of paying for treatment(for municipalities that are billed strictly on flow volume).
Cost of Source Detection and Removal: Infiltration sources are usually harder to find andmore expensive to correct than inflow sources. Infiltration sources include defects indeteriorated sewer pipes and/or manholes, and may include cracks, offset joints, rootintrusion points, and broken pipes. The sources may be wide-spread throughout a sanitarysewer system.
Graphical Identification: Infiltration is often recognized graphically by a gradual increase inflow after a wet weather event. The increased flow typically sustains for a period after rainfallhas stopped and then gradually drops off as soils become less saturated, and asgroundwater levels recede to normal levels.
Infiltration Components
Infiltration can be further subdivided into components as follows:
Groundwater Infiltration – Groundwater infiltration depends on the depth of thegroundwater table above the pipelines as well as the percentage of the system submerged.
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The variation on groundwater levels and subsequent groundwater infiltration rates areseasonal by nature. On a day-to-day basis, groundwater infiltration rates are relativelysteady and will not fluctuate greatly.
Rainfall Dependent Infiltration – This component occurs as a result of storm water andenters the sewer system through pipe defects similar to groundwater infiltration. The stormwater first percolates directly into the soil and then migrates to an infiltration point. Typically,
the time of concentration for rainfall related infiltration may be 24 hours or longer, butdepends on the soil permeability and saturation levels.
Rainfall Responsive Infiltration is storm water which enters the collection system indirectlythrough pipe defects, but normally in sewers constructed close to the ground surface such asprivate laterals. Rainfall responsive infiltration is independent of the groundwater table, andreaches defective sewers via the pipe trench in which the sewer is constructed, particularly ifthe pipe is placed in impermeable soil and bedded and backfilled with a granular material. Inthis case, the pipe trench serves as a conduit similar to a French drain, conveying stormdrainage to defective joints and other openings in the system. Note: this type of infiltrationcan have a quick response and graphically can look very similar to inflow.
Figure 12 illustrates the possible locations and components of I&I.
Figure 12. Typical Sources of Infiltration and Inflow
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Graphical Identification of I&I Components
Figure 13 shows sample graphs indicating the typical graphical response patterns for Inflow /
Infiltration.
Figure 13. Inflow / Infiltration Graphical Response Patterns
Analysis Techniques
After differentiating I&I flows from baseline flows, various calculations can be made to determine
which I&I component is more prevalent at a particular site, and to compare the relative magnitude of
the I&I components between drainage basins and between storm events, summarized as follows:
Inflow Indicators
Peak I&I Flow Rate: It is preferable for I&I analysis to look strictly at I&I flow rates rather than peak
flow rates; peak flow rates can be skewed higher or lower depending on whether the storm event I&I
response occurs during low flow or high flow hours. After determining the peak I&I flow rate for a
given site, and for a given storm event, there are three ways to normalize the peak I&I rates for an
“apples-to-apples” comparison amongst the different drainage basins:
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
F l o w ( M
G D )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
R a i n ( i n / h r )
0.00
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
4-Jun 5-Jun
I / I ( M G D )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
R a i n ( i n / h r )
0
5
10
15
20
25
30
F l o w
( g p m )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
R a i n ( i n / h r )
0
2
4
6
8
10
12
14
16
18
22-Feb 23-Feb
F l o w
( g p m )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
R a i n ( i n / h r )
0.00
0.10
0.20
0.30
0.40
0.50
F l o w
( M G D )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
R a i n ( i n / h r )
0.00
0.05
0.10
0.15
0.20
0.25
17-De c 18-De c 19-De c 20-De c
F l o w
( M G D )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
R a i n ( i n / h r )
Inflow Combination I&IInfiltration
RainfallBaseline FlowRealtime Flow
I&I Flow Rate
Response PatternSharp SpikeShort Duration
Response PatternGradual IncreaseGradual Recession
Response PatternCombination of Inflowand Infiltration
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Peak I&I Flow Rate per IDM: Peak measured I&I rate divided by length of pipe within thedrainage basin, expressed in units of inch-diameter-mile (IDM) (miles of pipeline multiplied bythe diameter of the pipeline in inches). Final units are gallons per day (gpd) per IDM.
Peak I&I Flow Rate per Acre: Peak measured I&I rate divided by the basin size of thedrainage basin. Basin units expressed in acres. Units are gpd per acre.
Peak I&I Flow Rate to ADWF Ratio: Peak measured I&I rate divided by average dryweather flow (ADWF). This is a ratio and is expressed without units.
All three normalization methods are used in this report. A final ranking of Inflow is based on
averaging the individual rankings for each method. For the purposes of this report, each method is
given equal weighting towards the final ranking.
Infiltration Indicators
Dry Weather Groundwater Infiltration: GWI analysis is conducted by looking at minimum dry
weather flow to average dry weather flow ratios and comparing them to established standards, which
may result in quantifying the rate of excess ground water infiltration. Similar to the discussion on
inflow, GWI infiltration rates can be normalized by means of pipe length (IDM), basin area (acres)
and/or dry weather flow rates (ADWF). These methods are discussed in further detail in the
Groundwater Analysis section later in this report.
Rainfall Dependent Infiltration: Infiltration occurring 24 hours or more after the conclusion of a
storm event is typically classified as rainfall dependent infiltration. Analysis is conducted by looking at
the infiltration rates at set periods after the conclusion of a storm event. Depending on the system
and the time required for flows to return to ADWF levels, different set periods may be examined to
determine the basins with the greatest or most sustained rainfall dependent infiltration rates.
For this project, there was conclusive infiltration occurring 48 hours after the rainfall events during this
study.
Combined I&I Indicators
Total Infiltration: The total inflow and infiltration is measured in gallons per site and per storm event.
Because it is based on total I&I volume, it is an indicator of combined infiltration and inflow and is
used to identify the overall volumetric influence of I&I within the monitoring basin. Similar to Inflow,
pipe length, basin area and dry weather flow are used to normalize combined I&I for basin
comparison:
Combined I&I Flow Rate per IDM: Total infiltration (gallons) divided by length of pipe (IDM)and divided by storm event rainfall (inches of rain). Final units are gallons per day (gpd) perIDM per inch-rain.
R-Value: Total infiltration (gallons) divided by the total rainfall that fell within the acreage ofthat basin (gallons of rainfall). This is expressed as a percentage and is explained as “the
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percent of rain that falls that enters the sanitary sewer collection system.” Systems with R-Values less than 5%
4are often considered to be performing well.
Combined I&I Flow Rate per ADWF: Total infiltration (gallons) divided by the ADWF (gpd)and divided by storm event rainfall (inches of rain). Final units are gallons (x 10
6) per MGD of
ADWF per inch-rain.
Figure 14 below shows a sample I&I graph (Basin 4 shown) that illustrates and summarizes the I&I
response and I&I calculations made per site per storm event. Similar graphs for each site are located
in Appendix B .
Figure 14. I&I Flow Graph for Basin 4
4 Keefe, P.N. “Test Basins for I&I Reduction and SSO Elimination”, 1998, WEF Wet Weather Specialty Conference, Cleveland.
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Inflow Analysis
Table 8 summarizes the peak I&I flows and inflow analysis results for the flow monitoring sites and
associated basins. I&I analysis data was taken from stacked rainfall events occurring from January
16 through 27, 2010. Numbers in parenthesis indicate the relative ranking of the basin for that sub-
category. Figure 15 shows a bar graph of the inflow indicators. Figure 16 shows a temperature map
of the overall inflow ranking results. Temperature maps for all methods of normalization can be found
in Appendix A.
Table 8.
Inflow Analysis Summary
Site Data(Cumulative)
Isolated Basin Data
Location
ADWF(mgd)
Peak I&IRate
(mgd)
Peak I&I
per PipeLength
(gpd/IDM)
Peak I&Iper Acre
(gpd/acre)
Peak I&Ito ADWF
Ratio
OverallInflow
RankingA
Basin 2 0.25 0.84 20,200 (5) 2,170 (7) 3.40 (9) 6
Basin 3 0.41 2.81 29,200 (2) 5,700 (2) 6.84 (3) 2
Basin 3A 0.30 2.12 33,200 (1) 6,800 (1) 7.11 (2) 1
Basin 3B 0.11 0.69 21,400 (4) 3,800 (4) 6.10 (4) 4
Basin 4 0.49 3.87 26,300 (3) 5,680 (3) 7.87 (1) 3
Basin 5 0.016 0.096 4,600 (12) 1,560 (10) 5.99 (5) 11
Basin 6 0.20 0.78 9,200 (10) 1,470 (11) 3.88 (7) 10
Basin 7A 0.11 0.37 5,100 (11) 520 (12) 3.37 (10) 12
Basin 7B 0.022 0.062 3,500 (13) 350 (13) 2.82 (11) 13
Basin 8 0.55 1.56 15,400 (7) 2,250 (6) 2.81 (12) 7
Basin 8-1 0.33 0.85 14,300 (8) 2,090 (8) 2.60 (13) 9
Basin 8-2 0.23 0.80 19,400 (6) 2,840 (5) 3.55 (8) 5
Site 9 2.12 9.88 13,500 (9) 2,020 (9) 4.66 (6) 8
The overall inflow ranking was determined by a weighted average of the ordinal rankings for each method of
normalization per the following formula: (0.5)(IDM) + (0.25)(ACRE) + (0.25)*(ADWF). The IDM (pipe length) methodwas weighted more strongly because future CIP rehabilitation projects are likely to be based on repair of length ofpipe.
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0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
3 A 3 4
3 B 2
8 - 2 8
8 - 1 6
7 A 5
7 B
S i t e 9
P e a k I & I p e r I D
M
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
3 A 3 4
3 B
8 - 2 8 2
8 - 1 5 6
7 A
7 B
S i t e 9
P e a k I & I p e r A c r e
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
4 3 A 3
3 B 5 6
8 - 2 2
7 A 7
B 8 8 - 1
S i t e 9
P e
a k I & I t o A D W F
Figure 15. Inflow Indicator Bar Graphs
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Figure 16. Inflow Rankings Temperature Map
Inflow Rank = 1
Inflow Rank 2 - 3
Inflow Rank 4 - 5
Inflow Rank 6 - 7
Inflow Rank 8 - 9
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GWI (Groundwater Infiltration) Analysis
Dry weather (baseline) flow can be expected to have a predictable diurnal flow pattern. While each
site is unique, experience has shown that, given a reasonable volume of flow and typical loading
conditions, the daily peaks and lows fall into a predictable range when compared to the daily average
flow. If a site has a large percentage of groundwater infiltration occurring during the periods of dry
weather flow measurement, the amplitudes of the peak and low flows will be dampened5. Figure 17
shows a sample of two flow monitoring sites, both with nearly the same average daily flow, but with
considerably different peak and low flows. In this sample case, Site B1 may have a considerable
volume of groundwater infiltration.
West County Wastewater District: B1 and A9 Baseline Weekday Flows
0.0
0.1
0.2
0.3
0.4
0.5
0.6
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00
Hour
F l o w
N 1 ( M G D )
Site A9 Site B1
Site B1 Baseline Weekday Flow: 0.30 MGD
Site A9 Baseline Weekday Flow: 0.28 MGD
Figure 17. Groundwater Infiltration Sample Figure
It can be useful to compare the peak-to-baseline and low-to-baseline flow ratios for all flow metering
sites. A site with abnormal ratios, and with no other reasons to suspect abnormal flow patterns (such
as proximity to pump station, treatment facilities, etc.), has a distinct possibility of higher levels of
groundwater infiltration in comparison to the rest of the collection system. Figure 18 plots the peak-to-
baseline and min-to-baseline flow ratios against the baseline flows for all sites monitored during this
study. The dotted line shows “typical” min-to-baseline flow ratios per the Water Pollution Control
Federation6. There are no established peak-to-baseline ratios, but a system trendline has been
drawn to better distinguish sites that fall outside the system trends. The min-to-baseline ratio should
be taken with more weight as low flows during early morning hours are generally more predictable
than peak flows.
5 Theoretically imagining an extreme case, if there were 0.2 MGD of baseline flow and 2.0 MGD of groundwater infiltration, the
peaks and lows would be barely recognizable; the baseline flow would be nearly a straight line.
6 WPCF Manual of Practice No. 9 “Design and Construction of Sanitary and Storm Sewers”.
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Figure 18. Peak and Minimum Flow Ratios vs. ADWF7
Basins 2, 3A, 4 and 8-1 had minimum flow to ADWF ratios that were above the WPCF typical Low-to-
Average Ratio, indicating excessive groundwater infiltration. The rates of groundwater infiltration
above typical groundwater infiltration standards (as set forth by WPCF) for these sites were
calculated and are shown in Table 9. Basin 2 has the highest GWI contribution.
Table 9.
Excess Groundwater Infiltration Rates above Typical Rate
LocationADWF(mgd)
ExcessGWI Rate
(mgd)
GWI Rateper PipeLength
(gpd/IDM)
GWI Rateper Acre
(gpd/acre)
Basin 2 0.25 0.13 3,225 345
Basin 3 0.41 0.08 875 170
Basin 4 0.49 0.11 750 162
Basin 8-1 0.32 0.12 2,050 299
7 Due to attenuation, it should be expected that sites with larger flow volumes should not have quite the peak-to-average and
low-to-average flow ratios as sites with lesser flow volumes, which is why the typical and system trend lines slope closer to 1.0as the ADWF increases, as shown in the figure.
-
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
- 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.20
ADWF (MGD)
P e a k a n d M i n i m u m F l o w R a t i o s
Maximum, 24 hr
Minimum, 24 hr
ADWF = 1.0
S stem Peak-to-Avera e Trendline
WPCF Typical Low-to-Average Ratio
Basin 3A
Basin 8-1
Basin 2
Basin 4
Please note: The stated groundwater rates are not total groundwater infiltration rates, butgroundwater rates above typical rates.
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RDI (Rain Dependent Infiltration) Analysis
Table 10 summarizes the rain dependent infiltration results for the flow monitoring sites and
associated basins. I&I analysis data was taken from stacked rainfall events occurring from January
16 through 27, 2010. Numbers in parenthesis indicate the relative ranking of the basin for that sub-
category. Figure 19 shows a bar graph of the RDI indicators. Figure 20 shows a temperature map of
the overall RDI infiltration rankings. Temperature maps for all methods of normalization can be found
in Appendix A.
Table 10.
Infiltration Analysis Summary
Site Data(Cumulative)
Isolated Basin Data
Location
ADWF(mgd)
RDI Rateon 2/2/2010
(mgd)
RDI Rate
per PipeLength
(gpd/IDM)
RDI Rateper Acre
(gpd/acre)
RDI Rateto ADWF
Ratio
OverallRDI
RankingA
Basin 2 0.25 0.12 2,900 (10) 320 (11) 50% (12) 10
Basin 3 0.41 1.08 11,200 (2) 2,180 (2) 262% (2) 2
Basin 3A 0.30 0.92 14,500 (1) 2,960 (1) 310% (1) 1
Basin 3B 0.11 0.15 4,800 (8) 850 (5) 136% (6) 6
Basin 4 0.49 1.19 8,000 (3) 1,740 (3) 241% (3) 3
Basin 5 0.016 0.014 700 (12) 20 (13) 87% (10) 11
Basin 6 0.20 0.25 2,900 (11) 470 (10) 124% (8) 9
Basin 7A 0.11 0.038 500 (13) 50 (12) 35% (13) 12
Basin 7B 0.022 0.001 100 (14) 10 (14) 4% (14) 13
Basin 8 0.55 0.58 5,800 (5) 840 (6) 105% (9) 6
Basin 8-1 0.33 0.42 7,100 (4) 1,040 (4) 129% (7) 4
Basin 8-2 0.23 0.16 3,900 (9) 570 (9) 71% (11) 8
Site 9 2.12 3.85 5,300 (6) 790 (7) 181% (4) 5
The overall RDI ranking was determined by a weighted average of the ordinal rankings for each method of normalization
per the following formula: (0.5)(IDM) + (0.25)(ACRE) + (0.25)*(ADWF). The IDM (pipe length) method was weightedmore strongly because future CIP rehabilitation projects are likely to be based on repair of length of pipe.
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0
2,000
4,000
6,000
8,000
10,000
12,000
14,000
16,000
3 A 3 4
8 - 1 8
3 B
8 - 2 2 6 5
7 A
7 B
S i t e 9
I n f i l t r a t i o n R a t e p e
r I D M
0
500
1,000
1,500
2,000
2,500
3,000
3,500
3 A 3 4
8 - 1
3 B 8
8 - 2 6 2
7 A 5
7 B
S i t e 9
I n f i l t r a t i o n R a t e p e r A c r e
0%
50%
100%
150%
200%
250%
300%
350%
3 A 3 4
3 B
8 - 1 6 8 5
8 - 2 2
7 A 7
B
S i t e 9
I n f i l t r a t
i o n R a t e ( % o
f A D W F )
Figure 19. RDI Indicator Bar Graphs
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Figure 20. RDI Rankings Temperature Map
RDI Rank = 1
RDI Rank 2 - 3
RDI Rank 4 - 5
RDI Rank 6 - 7
RDI Rank 8 - 9
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Combined I&I Analysis
Table 11 summarizes the combined I&I analysis results for the flow monitoring sites and associated
basins. I&I Analysis data taken from stacked rainfall events occurring from January 16 through 27,
2010; total I&I was calculated through February 4, 2010. Numbers in parenthesis indicate the relative
ranking of the basin for that sub-category. Figure 21 shows a bar graph of the combined I&I
indicators. Figure 22 shows a temperature map of the overall combined I&I rankings. Temperature
maps for all methods of normalization can be found in Appendix A.
Table 11.
Combined I&I Analysis Summary
Site Data(Cumulative)
Isolated Basin Data
LocationADWF(mgd)
Total I&I(gallons)
Total I&Iper PipeLength
(gal/IDM)
Total I&I
per Acre(R-Value)
Total I&I
to ADWFRatio
OverallCombined
I&IRanking
A
Basin 2 0.25 6,081,000 11,300 (6) 4.4% (9) 1.89 (10) 8
Basin 3 0.41 24,322,000 20,500 (2) 14.7% (2) 4.78 (2) 2
Basin 3A 0.30 18,101,000 22,700 (1) 17.1% (1) 4.86 (1) 1
Basin 3B 0.11 6,221,000 15,200 (4) 9.9% (4) 4.34 (5) 4
Basin 4 0.49 27,826,000 15,600 (3) 12.4% (3) 4.68 (3) 3
Basin 5 0.016 737,000 3,500 (11) 0.4% (12) 4.63 (4) 10
Basin 6 0.20 5,000,000 4,900 (10) 2.9% (10) 2.05 (8) 10
Basin 7A 0.11 1,679,000 2,100 (12) 0.8% (11) 1.37 (12) 12
Basin 7B 0.022 178,000 1,000 (13) 0.4% (13) 0.82 (13) 13
Basin 8 0.55 12,835,000 10,800 (7) 5.8% (6) 1.96 (9) 6
Basin 8-1 0.33 8,211,000 11,800 (5) 6.3% (5) 2.14 (7) 5
Basin 8-2 0.23 4,624,000 9,400 (9) 5.1% (8) 1.71 (11) 9
Site 9 2.12 83,360,000 9,700 (8) 5.3% (7) 3.35 (6) 6
The overall combined I&I ranking was determined by a weighted average of the ordinal rankings for each method ofnormalization per the following formula: (0.5)(IDM) + (0.25)(ACRE) + (0.25)*(ADWF). The IDM (pipe length) method wasweighted more strongly because future CIP rehabilitation projects are likely to be based on repair of length of pipe.
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0
5,000
10,000
15,000
20,000
25,000
3 A 3 4
3 B
8 - 1 2 8
8 - 2 6 5
7 A
7 B
S i t e 9
T o t a l I & I p e r I D
M
0%
2%
4%
6%
8%
10%
12%
14%
16%
18%
3 A 3 4
3 B
8 - 1 8
8 - 2 2 6
7 A 5
7 B
S i t e 9
R - V a l u e
0.0
1.0
2.0
3.0
4.0
5.0
6.0
3 A 3 4 5
3 B
8 - 1 6 8 2
8 - 2 7
A 7 B
S i t e 9
T o t a l I & I p e r A D W F
Figure 21. Combined I&I Indicator Bar Graphs
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Figure 22. Combined I&I Rankings Temperature Map
Combined I&I Rank = 1
Combined I&I Rank 2 - 3
Combined I&I Rank 4 - 5
Combined I&I Rank 6 - 7
Combined I&I Rank 8 - 9
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Pipeline Capacity Analysis
Peaking Factor: Peaking Factor is defined as the Peak Measured Flow divided by the Average Dry
Weather Flow. A peaking factor threshold value of 3.0 is commonly used for sanitary sewer design.
d/D Ratio: The d/D ratio is the peak measured depth of flow divided by the pipe diameter. A d/D ratio
less than 0.75 is a common threshold value used for pipe design. The d/D ratio for each site was
computed based on the maximum depth of flow during the rainfall events.
Table 12 summarizes the peak recorded d/D ratios and Peaking Factors per site during the flow
monitoring period. Figure 23 shows a bar graph of the capacity results.
Table 12.
Capacity Analysis Summary
MonitoringSite
PeakingFactor
d/DRatio
Basin 2 4.50 0.51
Basin 3 7.97 0.81
Basin 3B 7.33 0.56
Basin 4 8.99 0.67
Basin 5 11.35 n/a
Basin 6 5.07 0.43
Basin 7A 4.58 0.70
Basin 7B 4.13 n/a
Basin 8 3.88 n/a
Basin 8-1 3.78 0.79
Basin 8-2 4.93 0.36
Site 9 (Syst) 5.79 0.66
The following capacity analysis results are noted:
Peaking Factor: All sites were above the typical design threshold limit for peak flow toaverage dry weather flow ratio.
d/D Ratio: The sites monitoring Basins 3 and 8-1 had d/D ratios that exceed the common
threshold value for d/D ratio. None of the flow monitoring sites reached a surchargedcondition.
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0.0
2.0
4.0
6.0
8.0
10.0
12.0
5 4 3 A
3 B
S i t e 9 6
8 - 2
7 A 2
7 B 8
8 - 1
P e a k i n g F a c t o r
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
3 A
8 - 1 7
A 4
S i t e 9
3 B 2 6
8 - 2
d / D R a t i o
Figure 23. Capacity Rankings: Peaking Factor and d/D Ratio by Site
Surcharge Threshold
TypicalDesignThreshold
Typical Design Threshold
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SYNTHETIC HYDROGRAPHS
In order to model design storms, synthetic hydrographs were developed to approximate the actual
RDI/I hydrograph shape in terms of parameters representing time to the peak and the recession
coefficient. The actual RDI/I hydrograph was best matched with a synthetic hydrograph by separating
the synthetic hydrograph into seven volume components (R1, R2, R3, R4, R5, R6, R7). The seven
components represent different response times to the rainfall event and, therefore, different infiltration
or inflow paths into the sewer system. R1 is characterized by a short response time and is assumed
to consist of mainly inflow. R7 represents slower response and longer recession times and consists of
mostly infiltration. Levels of soil saturation are also considered. Using synthetic hydrograph analysis,
appropriate time and recession parameters were estimated by a trial-and-error procedure until a good
match was obtained. A sample synthetic hydrograph and its component hydrographs for the period
of January 17 through February 19, 2010 for Basin 3 is shown in Figure 24.
Figure 24. Basin 3: Synthetic Hydrograph
0.00
0.50
1.00
1.50
2.00
2.50
3.00
17-
Jan
19-
Jan
21-
Jan
23-
Jan
25-
Jan
27-
Jan
29-
Jan
31-
Jan
2-
Feb
4-
Feb
6-
Feb
8-
Feb
10-
Feb
12-
Feb
14-
Feb
16-
Feb
18-
Feb
I & I F l o w
( m g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
R a i n ( i n / h r )
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
17-
Jan
19-
Jan
21-
Jan
23-
Jan
25-
Jan
27-
Jan
29-
Jan
31-
Jan
2-
Feb
4-
Feb
6-
Feb
8-
Feb
10-
Feb
12-
Feb
14-
Feb
16-
Feb
18-
Feb
I & I F l o w
( m g d )
0.00.10.20.30.40.50.60.7
0.80.91.0
R a i n ( i n / h r )
Rain Realtime I/I Hydrograph
Synthetic Hydrograph R1 Component
R2 Component R3 Component
R4 Component R5 Component
R6 Component R7 Component
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Design Storm
With the I&I components defined, design storms can be applied and the resulting I&I flows can be
predicted. The design storm used for this analysis was a 10-day, 10-year storm event taken from the
NOAA Western U.S. Precipitation Frequency Maps.
Figure 25 summarizes the design storm per hour and shows the storm profile for the 24-hour, 10-year
event. This particular profile distribution also fits the NOAA criterion for a 2-hour, 6-hour, 24-hour, 2-
day, 4-day and 7-day event.
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
Day 1 Day 2 Day 3 Day 4 Day 5 Day 6 Day 7 Day 8 Day 9 Day 10
R a i n f a l l ( i n / h r )
Figure 25. 10-Year, 10-Day Design Storm
Table 13 summarizes the final results for each design storm on a site-by-site basis. The peak I/I
flows from the design storm coincide with peak dry weather flows to get a “worst-case” scenario of
peak wet weather flows. Figure 26 shows the synthetic hydrograph response for the 10-year event forBasin 3.
Total Rainfall: 15.0 inches
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Table 13.
10-Year, 10-Day Design Storm Data Summary
SitePeak Flow
(mgd)
PeakingFactor
Basin 2 1.66 6.74
Basin 3 5.01 12.28
Basin 3A 3.68 12.35
Basin 3B 1.34 11.89
Basin 4 8.15 16.38
Basin 5 0.23 14.20
Basin 6 1.86 9.31
Basin 7A 1.10 9.82
Basin 7B 0.18 8.36
Basin 8 3.68 6.59Basin 8-1 1.74 5.37
Basin 8-2 2.05 8.77
Site 9 20.04 9.48
Figure 26. Basin 3: 10-Year, 10-Day Design Storm
0.0
0.5
1.0
1.5
2.0
Day 1 Day 2 Day 3 Day 4 Day 5 Day 6 Day 7 Day 8 Day 9 Day 10 Day 11 Day 12 Day 13
I / I ( m g d )
0.0
0.1
0.2
0.30.4
0.5
0.6
0.7
0.8
0.9
1.0
R a i n ( i n / h r )
0.0
1.0
2.0
3.0
4.0
5.0
6.0
Day 1 Day 2 Day 3 Day 4 Day 5 Day 6 Day 7 Day 8 Day 9 Day 10 Day 11 Day 12 Day 13
F l o w
( m g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
R a i n ( i n / h r )
Rain Estimated Total Flow Synthetic I/I Hydrograph
R1 Component R2 Component R3 Component R4 Component
R5 Component R6 Component R7 Component
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RECOMMENDATIONS
V&A advises that future I&I reduction plans consider the following recommendations:
1. Determine I&I Reduction Program: The City should examine its I&I reduction needs to
determine a future I&I reduction program.
a. If peak flows, sanitary sewer overflows, and pipeline capacity issues are of greaterconcern, then the program can be prioritized to investigate and reduce sources of inflowwithin the basins with the greatest inflow problems.
b. If total infiltration and general pipeline deterioration are of greater concern, then prioritycan be given to investigate and reduce sources of infiltration within the basins with thegreatest infiltration problems.
2. I&I Investigation Methods: Potential I&I investigation methods include the following:
a. smoke testing
b. mini-basin flow monitoring
c. night-time reconnaissance work to (1) investigate and determine direct point sources ofinflow, and (2) determine the areas and/or pipe reaches responsible for high levels ofinfiltration contribution.
d. CCTV inspection
I&I Reduction Cost Effective Analysis: The City should conduct a study to determine which is more
cost-effective: (1) locating the sources of infiltration and inflow and systematically rehabilitating or
replacing the faulty pipelines; or (2) continued treatment of the additional rainfall dependent I&I flow.
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APPENDIX A
INFLOW / INFILTRATION
TEMPERATURE MAPS
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Figure 27. Inflow Temperature Map: Peak I&I per IDM
I&I:IDM > 30,000
25,000 > I&I:IDM > 30,000
20,000 > I&I:IDM > 25,000
15,000 > I&I:IDM > 20,000
I&I:IDM < 15,000
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Figure 28. Inflow Temperature Map: Peak I&I per ACRE
I&I:ACRE > 6,000
4,500 > I&I:ACRE > 6,000
3,000 > I&I:ACRE > 4,500
1,500 > I&I:ACRE > 3,000
I&I:ACRE < 1,500
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Figure 29. Inflow Temperature Map: Peak I&I per ADWF
I&I:ADWF > 7
7 > I&I:ADWF > 6
6 > I&I:ADWF > 5
5 > I&I:ADWF > 4
I&I:ADWF < 4
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Figure 30. RDI Temperature Map: Feb 2 Infiltration Rate per IDM
I&I:IDM > 10,000
7,500 > I&I:IDM > 10,000
5,000 > I&I:IDM > 7,500
2,500 > I&I:IDM > 5,000
I&I:IDM < 2,500
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Figure 31. RDI Temperature Map: Feb 2 Infiltration Rate per ACRE
I&I:ACRE > 2,400
1,800 > I&I:ACRE > 2,400
1,200 > I&I:ACRE > 1,800
600 > I&I:ACRE > 1,200
I&I:ACRE < 600
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Figure 32. RDI Temperature Map: Feb 2 Infiltration Rate per ADWF
I&I:ADWF > 275%
200% > I&I:ADWF > 275%
125% > I&I:ADWF > 200%
50% > I&I:ADWF > 125%
I&I:ADWF < 50%
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Figure 33. Combined I&I Temperature Map: Total I&I per IDM
I&I:IDM > 20,000
15,000 > I&I:IDM > 20,000
10,000 > I&I:IDM > 15,000
5,000 > I&I:IDM > 10,000
I&I:IDM < 5,000
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Figure 34. Combined I&I Temperature Map: Total I&I per ACRE
I&I:R-Value > 16%
12% > I&I:R-Value > 16%
8% > I&I:R-Value > 12%
4% > I&I:R-Value > 8%
I&I:R-Value < 4%
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Figure 35. Combined I&I Temperature Map: Total I&I per ADWF
I&I:ADWF > 6.0
4.5 > I&I:ADWF > 6.0
3.0 > I&I:ADWF > 4.5
1.5 > I&I:ADWF > 3.0
I&I:ADWF < 1.5
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APPENDIX B
FLOW MONITORING SITES: DATA, GRAPHS, INFORMATION
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Monitoring Site:
Location:
Size/Type Line:
Basin 2
MH 1043: Norgard Lane at Townsend Lane
10-inch Sanitary Sewer Pipe
Temporary Flow Monitoring StudySanitary Sewer Collection System
Data Summary Report
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Basin 2
Location: MH 1043: Norgard Lane atTownsend Lane
Diameter: 10
Monitoring Site:Site Information
Report
Average Dry Weather Flow: 0.247
Peak Measured Flow: 1.113
mgd
mgd
Flow Sketch
Satellite Map
Latitude: 39.1176°
Longitude: -123.1963°
Rim Elevation: 584 feet above sea level
inches
Street View Photo
Sanitary Map
Plan View Photo
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0.00
0.20
0.40
0.60
0.80
1.00
1.20
16-Jan
Sat
17-Jan
Sun
18-Jan
Mon
19-Jan
Tue
20-Jan
Wed
21-Jan
Thu
22-Jan
Fri
23-Jan
Sat
24-Jan
Sun
25-Jan
Mon
26-Jan
Tue
27-Jan
Wed
28-Jan
Thu
29-Jan
Fri
30-Jan
Sat
31-Jan
Sun
1-Feb
Mon
2
F l o w
( m g d )
MPeriod Flow Summary
0 .
7 4 7
0 .
8 5 9
0 .
8 4 5
0 .
7 0 9
0 .
8 2 7
0 .
7 4 2
0 .
6 0 5
0 .
5 3 2
0 .
4 9 8
0 .
4 0 6
0 .
3 6 9
0 .
3 8 1
0 .
4 1 8
0 .
4 9 6
0 .
4 5 3
0 .
4 2 0
0 .
3 7 5
0 .
3 5 4
0 .
3 3 7
0 .
3 0 8
0 .
3 0 7
0 .
2 9 1
0 .
2 7 4
0.00
0.20
0.40
0.60
0.80
1.00
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
F l o w ( M
G a l )
0.00
0.20
0.40
0.60
0.80
1.00
1.20
6-Feb
Sat
7-Feb
Sun
8-Feb
Mon
9-Feb
Tue
10-Feb
Wed
11-Feb
Thu
12-Feb
Fri
13-Feb
Sat
14-Feb
Sun
15-Feb
Mon
16-Feb
Tue
17-Feb
Wed
18-Feb
Thu
19-Feb
Fri
20-Feb
Sat
21-Feb
Sun
22-Feb
Mon
2
F l o w
( m g d )
0 .
3 0 7
0 .
2 9 7
0 .
6 2 7
0 .
5 9 6
0 .
4 8 1
0 .
4 4 3
0 .
5 2 4
0 .
5 1 9
0 .
3 3 1
0 .
3 1 9
0 .
2 8 1
0.00
0.20
0.40
0.60
0.80
1.00
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
0 .
5 6 8
0 .
3 4 5
0.00
0.20
0.40
0.60
0.80
1.00
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
January 16 to February 27, 2010
Total Monthly Rainfall: 16.72 inches Avg Flow: 0.46 mgd Peak Flow: 1.11 mgd Min Flow: 0.17 mgd
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0.00
0.20
0.40
0.60
0.80
1.00
1.20
27-Feb
Sat
28-Feb
Sun
1-Mar
Mon
2-Mar
Tue
3-Mar
Wed
4-Mar
Thu
5-Mar
Fri
6-Mar
Sat
7-Mar
Sun
8-Mar
Mon
9-Mar
Tue
10-Mar
Wed
11-Mar
Thu
12-Mar
Fri
13-Mar
Sat
14-Mar
Sun
15-Mar
Mon
1
F l o w
( m g d )
MPeriod Flow Summary
0 .
3 7 0
0 .
4 5 5
0 .
5 6 3
0 .
5 1 6
0 .
4 6 5
0 .
3 6 4
0 .
3 4 2
0 .
3 5 6
0 .
3 1 6
0 .
4 3 3
0 .
3 6 3
0 .
3 3 6
0 .
3 1 3
0 .
2 9 5
0 .
2 7 6
0 .
2 4 7
0 .
2 5 6
0 .
2 5 3
0 .
2 5 9
0 .
2 5 7
0 .
2 6 2
0 .
3 3 4
0 .
3 9 3
0 .
3 8 4
0 .
4 1 6
0.00
0.20
0.40
0.60
0.80
1.00
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
F l o w ( M
G a l )
0.00
0.20
0.40
0.60
0.80
1.00
1.20
20-Mar
Sat
21-Mar
Sun
22-Mar
Mon
23-Mar
Tue
24-Mar
Wed
25-Mar
Thu
26-Mar
Fri
27-Mar
Sat
28-Mar
Sun
29-Mar
Mon
30-Mar
Tue
31-Mar
Wed
1-Apr
Thu
2-Apr
Fri
3-Apr
Sat
4-Apr
Sun
5-Apr
Mon
6
F l o w
( m g d )
0 .
4 9 8
0 .
4 4 2
0 .
4 4 6
0 .
4 0 9
0 .
4 8 9
0 .
4 2 2
0 .
2 5 8
0 .
2 5 9
0 .
2 6 4
0 .
2 5 9
0 .
4 5 2
0.00
0.20
0.40
0.60
0.80
1.00
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
0.00
0.20
0.40
0.60
0.80
1.00
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
February 27, 2010 to April 9, 2010
Total Monthly Rainfall: 6.53 inches Avg Flow: 0.38 mgd Peak Flow: 0.78 mgd Min Flow: 0.16 mgd
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M Average Dry Weather Flow
0.000
0.050
0.100
0.150
0.200
0.250
0.300
0.350
0.400
0 : 0 0
1 : 0 0
2 : 0 0
3 : 0 0
4 : 0 0
5 : 0 0
6 : 0 0
7 : 0 0
8 : 0 0
9 : 0 0
1 0 : 0 0
1 1 : 0 0
1 2 : 0 0
1 3 : 0 0
1 4 : 0 0
1 5 : 0 0
1 6 : 0 0
1 7 : 0 0
1 8 : 0 0
1 9 : 0 0
2 0 : 0 0
2 1 : 0 0
2 2 : 0 0
2 3 : 0 0
F l o w ( m
g d )
WeekdayWeekend
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MoI/I Summary
0.00
0.20
0.40
0.60
0.80
1.00
1.20
0 1 / 1 7
0 1 / 1 8
0 1 / 1 9
0 1 / 2 0
0 1 / 2 1
0 1 / 2 2
0 1 / 2 3
0 1 / 2 4
0 1 / 2 5
0 1 / 2 6
0 1 / 2 7
0 1 / 2 8
0 1 / 2 9
0 1 / 3 0
0 1 / 3 1
F l o w (
m g d )
Event 1 I&I ANALYSIS (Rainfall = 13 inches)
Inflow Infiltration on 2/2/2010 (post rain event) Total I&I
Total I/I: gallons6,081,000
I/I per ADWF: per in-rain1.89
Peak I/I Rate: mgd 0.84
Pk I/I:ADWF: 3.40
Infiltration Rate: 0.12
4.4%R-Value:
11,300I/I per IDM: gal/IDM/in-rai
Pk I/I:ACRE: 2,170
Pk I/I:IDM: 20,200
mgd
Infiltration:ADWF: 0.50
Infiltration:ACRE: 320
Infiltration:IDM: 2,900 gpd/IDM
gpd/acre
gpd/IDM
gpd/acre
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Basin 2
Monitoring Site:Level, Velocity and Flow
From 1/11/2010 to 1/18/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1/11 1/12 1/13 1/14 1/15 1/16 1/17
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.76 inches
Avg Level: 2.4 in. Peak Level: 3.16 in. Min Level: 1.83 in.
Avg Velocity: 4.54 fps Peak Velocity: 5.04 fps Min Velocity: 3.78 fps
Avg Flow: 0.3 mgd Peak Flow: 0.481 mgd Min Flow: 0.172 mgd
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Basin 2
Monitoring Site:Level, Velocity and Flow
From 1/18/2010 to 1/25/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1/18 1/19 1/20 1/21 1/22 1/23 1/24
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 9.37 inches
Avg Level: 3.85 in. Peak Level: 5.14 in. Min Level: 2.44 in.
Avg Velocity: 5.6 fps Peak Velocity: 6.18 fps Min Velocity: 4.48 fps
Avg Flow: 0.707 mgd Peak Flow: 1.113 mgd Min Flow: 0.303 mgd
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Basin 2
Monitoring Site:Level, Velocity and Flow
From 1/25/2010 to 2/1/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1/25 1/26 1/27 1/28 1/29 1/30 1/31
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 2.79 inches
Avg Level: 3.46 in. Peak Level: 4.78 in. Min Level: 2.63 in.
Avg Velocity: 5.4 fps Peak Velocity: 6.04 fps Min Velocity: 4.88 fps
Avg Flow: 0.59 mgd Peak Flow: 1.006 mgd Min Flow: 0.362 mgd
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Basin 2
Monitoring Site:Level, Velocity and Flow
From 2/1/2010 to 2/8/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
2/1 2/2 2/3 2/4 2/5 2/6 2/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.63 inches
Avg Level: 2.93 in. Peak Level: 3.83 in. Min Level: 2.18 in.
Avg Velocity: 5.11 fps Peak Velocity: 5.6 fps Min Velocity: 4.44 fps
Avg Flow: 0.445 mgd Peak Flow: 0.677 mgd Min Flow: 0.255 mgd
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Basin 2
Monitoring Site:Level, Velocity and Flow
From 2/8/2010 to 2/15/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
2/8 2/9 2/10 2/11 2/12 2/13 2/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.41 inches
Avg Level: 2.64 in. Peak Level: 3.28 in. Min Level: 2.09 in.
Avg Velocity: 4.93 fps Peak Velocity: 5.4 fps Min Velocity: 4.3 fps
Avg Flow: 0.37 mgd Peak Flow: 0.542 mgd Min Flow: 0.23 mgd
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Basin 2
Monitoring Site:Level, Velocity and Flow
From 2/15/2010 to 2/22/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
2/15 2/16 2/17 2/18 2/19 2/20 2/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.02 inches
Avg Level: 2.37 in. Peak Level: 3.17 in. Min Level: 1.87 in.
Avg Velocity: 4.62 fps Peak Velocity: 5.1 fps Min Velocity: 4.05 fps
Avg Flow: 0.299 mgd Peak Flow: 0.482 mgd Min Flow: 0.189 mgd
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Basin 2
Monitoring Site:Level, Velocity and Flow
From 2/22/2010 to 3/1/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
2/22 2/23 2/24 2/25 2/26 2/27 2/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.8 inches
Avg Level: 2.67 in. Peak Level: 3.64 in. Min Level: 1.89 in.
Avg Velocity: 4.81 fps Peak Velocity: 5.5 fps Min Velocity: 4 fps
Avg Flow: 0.372 mgd Peak Flow: 0.637 mgd Min Flow: 0.185 mgd
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Basin 2
Monitoring Site:Level, Velocity and Flow
From 3/1/2010 to 3/8/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
3/1 3/2 3/3 3/4 3/5 3/6 3/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.56 inches
Avg Level: 3.01 in. Peak Level: 3.8 in. Min Level: 2.18 in.
Avg Velocity: 5.12 fps Peak Velocity: 5.65 fps Min Velocity: 4.42 fps
Avg Flow: 0.461 mgd Peak Flow: 0.695 mgd Min Flow: 0.252 mgd
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Basin 2
Monitoring Site:Level, Velocity and Flow
From 3/8/2010 to 3/15/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
3/8 3/9 3/10 3/11 3/12 3/13 3/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.53 inches
Avg Level: 2.74 in. Peak Level: 3.6 in. Min Level: 1.99 in.
Avg Velocity: 4.9 fps Peak Velocity: 5.45 fps Min Velocity: 4.18 fps
Avg Flow: 0.389 mgd Peak Flow: 0.62 mgd Min Flow: 0.208 mgd
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Basin 2
Monitoring Site:Level, Velocity and Flow
From 3/15/2010 to 3/22/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
3/15 3/16 3/17 3/18 3/19 3/20 3/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlow
Avg Level: 2.32 in. Peak Level: 2.89 in. Min Level: 1.79 in.
Avg Velocity: 4.78 fps Peak Velocity: 5.31 fps Min Velocity: 4.09 fps
Avg Flow: 0.3 mgd Peak Flow: 0.447 mgd Min Flow: 0.175 mgd
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Basin 2
Monitoring Site:Level, Velocity and Flow
From 3/22/2010 to 3/29/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
3/22 3/23 3/24 3/25 3/26 3/27 3/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.37 inches
Avg Level: 2.13 in. Peak Level: 2.71 in. Min Level: 1.72 in.
Avg Velocity: 4.61 fps Peak Velocity: 5.19 fps Min Velocity: 4 fps
Avg Flow: 0.256 mgd Peak Flow: 0.381 mgd Min Flow: 0.165 mgd
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Basin 2
Monitoring Site:Level, Velocity and Flow
From 3/29/2010 to 4/5/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
3/29 3/30 3/31 4/1 4/2 4/3 4/4
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 2.89 inches
Avg Level: 2.69 in. Peak Level: 4.12 in. Min Level: 1.74 in.
Avg Velocity: 5.11 fps Peak Velocity: 5.74 fps Min Velocity: 4.03 fps
Avg Flow: 0.398 mgd Peak Flow: 0.784 mgd Min Flow: 0.165 mgd
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Basin 2
Monitoring Site:Level, Velocity and Flow
From 4/5/2010 to 4/12/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
4/5 4/6 4/7 4/8 4/9 4/10 4/11
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.11 inches
Avg Level: 3.01 in. Peak Level: 3.78 in. Min Level: 2.41 in.
Avg Velocity: 5.22 fps Peak Velocity: 5.69 fps Min Velocity: 4.55 fps
Avg Flow: 0.47 mgd Peak Flow: 0.695 mgd Min Flow: 0.299 mgd
7/27/2019 09-0747 WK Ukiah Draft FM and II Report
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Monitoring Site:
Location:
Size/Type Line:
Basin 3A
MH 750: Frontage Road; off of Talmage Road
18-inch Sanitary Sewer Pipe
Temporary Flow Monitoring StudySanitary Sewer Collection System
Data Summary Report
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Basin 3A
Location: MH 750: Frontage Road; off of Talmage Road
Diameter: 18
Monitoring Site:Site Information
Report
Average Dry Weather Flow: 0.411
Peak Measured Flow: 3.274
mgd
mgd
Flow Sketch
Satellite Map
Latitude: 39.1365°
Longitude: -123.1942°
Rim Elevation: 592 feet above sea level
inches
Street View Photo
Sanitary Map
Plan View Photo
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0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
16-Jan
Sat
17-Jan
Sun
18-Jan
Mon
19-Jan
Tue
20-Jan
Wed
21-Jan
Thu
22-Jan
Fri
23-Jan
Sat
24-Jan
Sun
25-Jan
Mon
26-Jan
Tue
27-Jan
Wed
28-Jan
Thu
29-Jan
Fri
30-Jan
Sat
31-Jan
Sun
1-Feb
Mon
2
F l o w
( m g d )
MPeriod Flow Summary
1 .
3 8 1
1 .
9 4 5
2 .
1 5 2
1 .
9 9 6
2 .
6 1 1
2 .
6 0 5
2 .
2 2 9
2 .
0 1 1
1 .
8 5 8
1 .
5 3 0
1 .
4 7 6
1 .
3 8 6
1 .
4 4 5
1 .
6 1 7
1 .
5 0 2
1 .
4 5 6
1 .
3 8 3
1 .
3 1 9
1 .
2 8 0
1 .
1 3 3
1 .
1 2 5
1 .
0 9 5
1 .
0 6 5
0.00
0.50
1.00
1.50
2.00
2.50
3.00
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
F l o w ( M
G a l )
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
6-Feb
Sat
7-Feb
Sun
8-Feb
Mon
9-Feb
Tue
10-Feb
Wed
11-Feb
Thu
12-Feb
Fri
13-Feb
Sat
14-Feb
Sun
15-Feb
Mon
16-Feb
Tue
17-Feb
Wed
18-Feb
Thu
19-Feb
Fri
20-Feb
Sat
21-Feb
Sun
22-Feb
Mon
2
F l o w
( m g d )
0 .
5 6 4
0 .
4 7 1
1 .
8 5 9
1 .
8 4 9
1 .
7 7 2
1 .
6 3 1
1 .
6 2 6
1 .
5 9 4
1 .
2 3 3
1 .
1 7 3
1 .
0 5 8
0.00
0.50
1.00
1.50
2.00
2.50
3.00
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
0 .
9 5 4
1 .
1 7 4
0.00
0.50
1.00
1.50
2.00
2.50
3.00
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
January 16 to February 27, 2010
Total Monthly Rainfall: 15.92 inches Avg Flow: 1.46 mgd Peak Flow: 3.27 mgd Min Flow: 0.21 mgd
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0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
27-Feb
Sat
28-Feb
Sun
1-Mar
Mon
2-Mar
Tue
3-Mar
Wed
4-Mar
Thu
5-Mar
Fri
6-Mar
Sat
7-Mar
Sun
8-Mar
Mon
9-Mar
Tue
10-Mar
Wed
11-Mar
Thu
12-Mar
Fri
13-Mar
Sat
14-Mar
Sun
15-Mar
Mon
1
F l o w
( m g d )
MPeriod Flow Summary
1 .
2 3 0
1 .
3 3 3
1 .
6 4 8
1 .
6 6 4
1 .
5 8 4
1 .
4 0 7
1 .
3 5 6
1 .
3 4 0
1 .
2 9 0
1 .
4 2 2
1 .
3 9 0
1 .
3 1 7
1 .
2 6 7
1 .
2 4 5
1 .
2 2 7
1 .
0 9 6
1 .
0 6 7
1 .
0 5 9
1 .
0 5 8
1 .
0 1 8
1 .
0 4 7
1 .
1 1 4
1 .
2 1 4
1 .
1 8 4
1 .
2 4 9
0.00
0.50
1.00
1.50
2.00
2.50
3.00
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
F l o w ( M
G a l )
0.00
0.50
1.00
1.50
2.00
2.50
3.003.50
4.00
20-Mar
Sat
21-Mar
Sun
22-Mar
Mon
23-Mar
Tue
24-Mar
Wed
25-Mar
Thu
26-Mar
Fri
27-Mar
Sat
28-Mar
Sun
29-Mar
Mon
30-Mar
Tue
31-Mar
Wed
1-Apr
Thu
2-Apr
Fri
3-Apr
Sat
4-Apr
Sun
5-Apr
Mon
6
F l o w
( m g d )
1 .
4 0 7
1 .
2 9 6
1 .
5 5 5
1 .
4 8 6
1 .
5 4 2
1 .
4 4 6
1 .
1 3 3
1 .
1 0 5
1 .
0 3 1
1 .
0 4 3
1 .
2 9 1
0.00
0.50
1.00
1.50
2.00
2.50
3.00
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
0.00
0.50
1.00
1.50
2.00
2.50
3.00
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
February 27, 2010 to April 9, 2010
Total Monthly Rainfall: 6.96 inches Avg Flow: 1.3 mgd Peak Flow: 1.88 mgd Min Flow: 0.76 mgd
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M Average Dry Weather Flow
0.000
0.100
0.200
0.300
0.400
0.500
0.600
0.700
0 : 0 0
1 : 0 0
2 : 0 0
3 : 0 0
4 : 0 0
5 : 0 0
6 : 0 0
7 : 0 0
8 : 0 0
9 : 0 0
1 0 : 0 0
1 1 : 0 0
1 2 : 0 0
1 3 : 0 0
1 4 : 0 0
1 5 : 0 0
1 6 : 0 0
1 7 : 0 0
1 8 : 0 0
1 9 : 0 0
2 0 : 0 0
2 1 : 0 0
2 2 : 0 0
2 3 : 0 0
F l o w ( m
g d )
WeekdayWeekend
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MoI/I Summary
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
0 1 / 1 7
0 1 / 1 8
0 1 / 1 9
0 1 / 2 0
0 1 / 2 1
0 1 / 2 2
0 1 / 2 3
0 1 / 2 4
0 1 / 2 5
0 1 / 2 6
0 1 / 2 7
0 1 / 2 8
0 1 / 2 9
0 1 / 3 0
0 1 / 3 1
F l o w (
m g d )
Event 1 I&I ANALYSIS (Rainfall = 12.37 inches)
Inflow Infiltration on 2/2/2010 (post rain event) Total I&I
Total I/I: gallons24,322,000
I/I per ADWF: per in-rain4.78
Peak I/I Rate: mgd 2.81
Pk I/I:ADWF: 6.84
Infiltration Rate: 1.08
14.7%R-Value:
20,500I/I per IDM: gal/IDM/in-rai
Pk I/I:ACRE: 5,700
Pk I/I:IDM: 29,200
mgd
Infiltration:ADWF: 2.62
Infiltration:ACRE: 2,180
Infiltration:IDM: 11,200 gpd/IDM
gpd/acre
gpd/IDM
gpd/acre
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Basin 3A
Monitoring Site:Level, Velocity and Flow
From 1/11/2010 to 1/18/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
1/11 1/12 1/13 1/14 1/15 1/16 1/17
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.81 inches
Avg Level: 4.8 in. Peak Level: 5.87 in. Min Level: 3.34 in.
Avg Velocity: 1.99 fps Peak Velocity: 2.41 fps Min Velocity: 1.42 fps
Avg Flow: 0.502 mgd Peak Flow: 0.774 mgd Min Flow: 0.207 mgd
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Basin 3A
Monitoring Site:Level, Velocity and Flow
From 1/18/2010 to 1/25/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
1/18 1/19 1/20 1/21 1/22 1/23 1/24
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 8.83 inches
Avg Level: 8.9 in. Peak Level: 10.77 in. Min Level: 4.31 in.
Avg Velocity: 3.02 fps Peak Velocity: 3.5 fps Min Velocity: 1.82 fps
Avg Flow: 1.734 mgd Peak Flow: 2.487 mgd Min Flow: 0.388 mgd
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Basin 3A
Monitoring Site:Level, Velocity and Flow
From 1/25/2010 to 2/1/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
1/25 1/26 1/27 1/28 1/29 1/30 1/31
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 2.66 inches
Avg Level: 10.07 in. Peak Level: 14.52 in. Min Level: 8.28 in.
Avg Velocity: 3.19 fps Peak Velocity: 3.62 fps Min Velocity: 2.84 fps
Avg Flow: 2.102 mgd Peak Flow: 3.274 mgd Min Flow: 1.501 mgd
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Basin 3A
Monitoring Site:Level, Velocity and Flow
From 2/1/2010 to 2/8/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
2/1 2/2 2/3 2/4 2/5 2/6 2/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.39 inches
Avg Level: 8.44 in. Peak Level: 9.74 in. Min Level: 7.19 in.
Avg Velocity: 2.89 fps Peak Velocity: 3.16 fps Min Velocity: 2.67 fps
Avg Flow: 1.525 mgd Peak Flow: 1.971 mgd Min Flow: 1.181 mgd
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Basin 3A
Monitoring Site:Level, Velocity and Flow
From 2/8/2010 to 2/15/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
2/8 2/9 2/10 2/11 2/12 2/13 2/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.37 inches
Avg Level: 7.84 in. Peak Level: 8.75 in. Min Level: 6.7 in.
Avg Velocity: 2.79 fps Peak Velocity: 3.03 fps Min Velocity: 2.56 fps
Avg Flow: 1.335 mgd Peak Flow: 1.627 mgd Min Flow: 0.999 mgd
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Basin 3A
Monitoring Site:Level, Velocity and Flow
From 2/15/2010 to 2/22/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
2/15 2/16 2/17 2/18 2/19 2/20 2/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.02 inches
Avg Level: 7.08 in. Peak Level: 8.18 in. Min Level: 6.04 in.
Avg Velocity: 2.62 fps Peak Velocity: 2.99 fps Min Velocity: 2.34 fps
Avg Flow: 1.095 mgd Peak Flow: 1.384 mgd Min Flow: 0.794 mgd
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Basin 3A
Monitoring Site:Level, Velocity and Flow
From 2/22/2010 to 3/1/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
2/22 2/23 2/24 2/25 2/26 2/27 2/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.9 inches
Avg Level: 7.26 in. Peak Level: 9.25 in. Min Level: 5.84 in.
Avg Velocity: 2.68 fps Peak Velocity: 3.12 fps Min Velocity: 2.24 fps
Avg Flow: 1.166 mgd Peak Flow: 1.796 mgd Min Flow: 0.727 mgd
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Basin 3A
Monitoring Site:Level, Velocity and Flow
From 3/1/2010 to 3/8/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
3/1 3/2 3/3 3/4 3/5 3/6 3/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.66 inches
Avg Level: 8.28 in. Peak Level: 9.41 in. Min Level: 6.59 in.
Avg Velocity: 2.91 fps Peak Velocity: 3.13 fps Min Velocity: 2.58 fps
Avg Flow: 1.5 mgd Peak Flow: 1.876 mgd Min Flow: 0.995 mgd
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Basin 3A
Monitoring Site:Level, Velocity and Flow
From 3/8/2010 to 3/15/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
3/8 3/9 3/10 3/11 3/12 3/13 3/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.58 inches
Avg Level: 7.98 in. Peak Level: 9.25 in. Min Level: 6.69 in.
Avg Velocity: 2.86 fps Peak Velocity: 3.07 fps Min Velocity: 2.61 fps
Avg Flow: 1.4 mgd Peak Flow: 1.802 mgd Min Flow: 1.033 mgd
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Basin 3A
Monitoring Site:Level, Velocity and Flow
From 3/15/2010 to 3/22/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
3/15 3/16 3/17 3/18 3/19 3/20 3/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.01 inches
Avg Level: 7.46 in. Peak Level: 8.6 in. Min Level: 6.28 in.
Avg Velocity: 2.77 fps Peak Velocity: 3 fps Min Velocity: 2.46 fps
Avg Flow: 1.241 mgd Peak Flow: 1.605 mgd Min Flow: 0.899 mgd
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Basin 3A
Monitoring Site:Level, Velocity and Flow
From 3/22/2010 to 3/29/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
3/22 3/23 3/24 3/25 3/26 3/27 3/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.46 inches
Avg Level: 6.86 in. Peak Level: 7.81 in. Min Level: 5.84 in.
Avg Velocity: 2.62 fps Peak Velocity: 2.83 fps Min Velocity: 2.24 fps
Avg Flow: 1.053 mgd Peak Flow: 1.313 mgd Min Flow: 0.757 mgd
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Basin 3A
Monitoring Site:Level, Velocity and Flow
From 3/29/2010 to 4/5/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
3/29 3/30 3/31 4/1 4/2 4/3 4/4
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 3.08 inches
Avg Level: 7.34 in. Peak Level: 8.97 in. Min Level: 6.05 in.
Avg Velocity: 2.76 fps Peak Velocity: 3.09 fps Min Velocity: 2.38 fps
Avg Flow: 1.215 mgd Peak Flow: 1.755 mgd Min Flow: 0.815 mgd
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Basin 3A
Monitoring Site:Level, Velocity and Flow
From 4/5/2010 to 4/12/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4/5 4/6 4/7 4/8 4/9 4/10 4/11
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.12 inches
Avg Level: 7.92 in. Peak Level: 8.85 in. Min Level: 6.89 in.
Avg Velocity: 2.89 fps Peak Velocity: 3.09 fps Min Velocity: 2.62 fps
Avg Flow: 1.402 mgd Peak Flow: 1.7 mgd Min Flow: 1.092 mgd
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Monitoring Site:
Location:
Size/Type Line:
Basin 3B
MH 959: S State Street between Washington Avenue and Wabash Avenue
12-inch Sanitary Sewer Pipe
Temporary Flow Monitoring StudySanitary Sewer Collection System
Data Summary Report
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Basin 3B
Location: MH 959: S State Street betweenWashington Avenue and Wabash
Diameter: 12
Monitoring Site:Site Information
Report
Average Dry Weather Flow: 0.113
Peak Measured Flow: 0.830
mgd
mgd
Flow Sketch
Satellite Map
Latitude: 39.1331°
Longitude: -123.2051°
Rim Elevation: 627 feet above sea level
inches
Street View Photo
Sanitary Map
Plan View Photo
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0.00
0.20
0.40
0.60
0.80
1.00
1.20
16-Jan
Sat
17-Jan
Sun
18-Jan
Mon
19-Jan
Tue
20-Jan
Wed
21-Jan
Thu
22-Jan
Fri
23-Jan
Sat
24-Jan
Sun
25-Jan
Mon
26-Jan
Tue
27-Jan
Wed
28-Jan
Thu
29-Jan
Fri
30-Jan
Sat
31-Jan
Sun
1-Feb
Mon
2
F l o w
( m g d )
MPeriod Flow Summary
0 .
3 8 1
0 .
5 2 5
0 .
5 9 4
0 .
5 6 8
0 .
6 8 5
0 .
6 9 7
0 .
6 1 4
0 .
5 5 9
0 .
5 1 0
0 .
2 9 8
0 .
2 6 5
0 .
2 5 0
0 .
2 4 6
0 .
2 7 5
0 .
2 6 1
0 .
2 4 8
0 .
2 3 2
0 .
2 0 9
0 .
1 9 8
0 .
1 3 2
0 .
1 3 3
0 .
1 2 9
0 .
1 1 8
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
F l o w ( M
G a l )
0.00
0.20
0.40
0.60
0.80
1.00
1.20
6-Feb
Sat
7-Feb
Sun
8-Feb
Mon
9-Feb
Tue
10-Feb
Wed
11-Feb
Thu
12-Feb
Fri
13-Feb
Sat
14-Feb
Sun
15-Feb
Mon
16-Feb
Tue
17-Feb
Wed
18-Feb
Thu
19-Feb
Fri
20-Feb
Sat
21-Feb
Sun
22-Feb
Mon
2
F l o w
( m g d )
0 .
1 3 7
0 .
1 2 7
0 .
5 8 4
0 .
5 4 6
0 .
4 6 2
0 .
3 6 5
0 .
2 7 9
0 .
2 7 1
0 .
1 7 1
0 .
1 3 9
0 .
1 1 3
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
0 .
2 3 2
0 .
1 4 0
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
January 16 to February 27, 2010
Total Monthly Rainfall: 16.29 inches Avg Flow: 0.3 mgd Peak Flow: 0.83 mgd Min Flow: 0.03 mgd
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0.00
0.20
0.40
0.60
0.80
1.00
1.20
27-Feb
Sat
28-Feb
Sun
1-Mar
Mon
2-Mar
Tue
3-Mar
Wed
4-Mar
Thu
5-Mar
Fri
6-Mar
Sat
7-Mar
Sun
8-Mar
Mon
9-Mar
Tue
10-Mar
Wed
11-Mar
Thu
12-Mar
Fri
13-Mar
Sat
14-Mar
Sun
15-Mar
Mon
1
F l o w
( m g d )
MPeriod Flow Summary
0 .
1 4 6
0 .
1 6 8
0 .
1 9 9
0 .
1 9 4
0 .
1 8 9
0 .
1 8 0
0 .
1 7 6
0 .
1 8 9
0 .
1 7 1
0 .
1 8 1
0 .
1 7 6
0 .
1 5 9
0 .
1 5 4
0 .
1 5 3
0 .
1 4 1
0 .
1 1 6
0 .
1 0 8
0 .
1 1 3
0 .
1 2 9
0 .
1 2 2
0 .
1 1 6
0 .
1 3 8
0 .
1 5 9
0 .
1 5 3
0 .
1 7 8
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
F l o w ( M
G a l )
0.00
0.20
0.40
0.60
0.80
1.00
1.20
20-Mar
Sat
21-Mar
Sun
22-Mar
Mon
23-Mar
Tue
24-Mar
Wed
25-Mar
Thu
26-Mar
Fri
27-Mar
Sat
28-Mar
Sun
29-Mar
Mon
30-Mar
Tue
31-Mar
Wed
1-Apr
Thu
2-Apr
Fri
3-Apr
Sat
4-Apr
Sun
5-Apr
Mon
6
F l o w
( m g d )
0 .
1 6 8
0 .
1 6 1
0 .
1 8 7
0 .
1 9 5
0 .
1 9 2
0 .
1 7 6
0 .
1 3 0
0 .
1 3 4
0 .
1 3 4
0 .
1 2 9
0 .
1 7 7
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
February 27, 2010 to April 9, 2010
Total Monthly Rainfall: 6.76 inches Avg Flow: 0.16 mgd Peak Flow: 0.32 mgd Min Flow: 0.04 mgd
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M Average Dry Weather Flow
0.000
0.050
0.100
0.150
0.200
0.250
0 : 0 0
1 : 0 0
2 : 0 0
3 : 0 0
4 : 0 0
5 : 0 0
6 : 0 0
7 : 0 0
8 : 0 0
9 : 0 0
1 0 : 0 0
1 1 : 0 0
1 2 : 0 0
1 3 : 0 0
1 4 : 0 0
1 5 : 0 0
1 6 : 0 0
1 7 : 0 0
1 8 : 0 0
1 9 : 0 0
2 0 : 0 0
2 1 : 0 0
2 2 : 0 0
2 3 : 0 0
F l o w ( m
g d )
WeekdayWeekend
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MoI/I Summary
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
0 1 / 1 7
0 1 / 1 8
0 1 / 1 9
0 1 / 2 0
0 1 / 2 1
0 1 / 2 2
0 1 / 2 3
0 1 / 2 4
0 1 / 2 5
0 1 / 2 6
0 1 / 2 7
0 1 / 2 8
0 1 / 2 9
0 1 / 3 0
0 1 / 3 1
F l o w (
m g d )
Event 1 I&I ANALYSIS (Rainfall = 12.66 inches)
Inflow Infiltration on 2/2/2010 (post rain event) Total I&I
Total I/I: gallons6,221,000
I/I per ADWF: per in-rain4.34
Peak I/I Rate: mgd 0.69
Pk I/I:ADWF: 6.10
Infiltration Rate: 0.15
9.9%R-Value:
15,200I/I per IDM: gal/IDM/in-rai
Pk I/I:ACRE: 3,800
Pk I/I:IDM: 21,400
mgd
Infiltration:ADWF: 1.36
Infiltration:ACRE: 850
Infiltration:IDM: 4,800 gpd/IDM
gpd/acre
gpd/IDM
gpd/acre
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Basin 3B
Monitoring Site:Level, Velocity and Flow
From 1/11/2010 to 1/18/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1/11 1/12 1/13 1/14 1/15 1/16 1/17
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.79 inches
Avg Level: 2.37 in. Peak Level: 3.1 in. Min Level: 1.43 in.
Avg Velocity: 1.76 fps Peak Velocity: 2.12 fps Min Velocity: 1.24 fps
Avg Flow: 0.13 mgd Peak Flow: 0.214 mgd Min Flow: 0.043 mgd
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Basin 3B
Monitoring Site:Level, Velocity and Flow
From 1/18/2010 to 1/25/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1/18 1/19 1/20 1/21 1/22 1/23 1/24
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 9.08 inches
Avg Level: 4.69 in. Peak Level: 5.87 in. Min Level: 2.09 in.
Avg Velocity: 2.59 fps Peak Velocity: 2.92 fps Min Velocity: 1.56 fps
Avg Flow: 0.49 mgd Peak Flow: 0.698 mgd Min Flow: 0.092 mgd
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Basin 3B
Monitoring Site:Level, Velocity and Flow
From 1/25/2010 to 2/1/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1/25 1/26 1/27 1/28 1/29 1/30 1/31
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 2.72 inches
Avg Level: 5.07 in. Peak Level: 6.66 in. Min Level: 3.69 in.
Avg Velocity: 2.69 fps Peak Velocity: 2.99 fps Min Velocity: 2.12 fps
Avg Flow: 0.556 mgd Peak Flow: 0.83 mgd Min Flow: 0.282 mgd
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Basin 3B
Monitoring Site:Level, Velocity and Flow
From 2/1/2010 to 2/8/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
2/1 2/2 2/3 2/4 2/5 2/6 2/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.5 inches
Avg Level: 3.56 in. Peak Level: 4.29 in. Min Level: 2.74 in.
Avg Velocity: 2.11 fps Peak Velocity: 2.48 fps Min Velocity: 1.72 fps
Avg Flow: 0.269 mgd Peak Flow: 0.392 mgd Min Flow: 0.15 mgd
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Basin 3B
Monitoring Site:Level, Velocity and Flow
From 2/8/2010 to 2/15/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
2/8 2/9 2/10 2/11 2/12 2/13 2/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.39 inches
Avg Level: 3 in. Peak Level: 3.79 in. Min Level: 2.01 in.
Avg Velocity: 2.06 fps Peak Velocity: 2.52 fps Min Velocity: 1.42 fps
Avg Flow: 0.208 mgd Peak Flow: 0.336 mgd Min Flow: 0.079 mgd
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Basin 3B
Monitoring Site:Level, Velocity and Flow
From 2/15/2010 to 2/22/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
2/15 2/16 2/17 2/18 2/19 2/20 2/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.02 inches
Avg Level: 2.3 in. Peak Level: 3.2 in. Min Level: 1.36 in.
Avg Velocity: 1.77 fps Peak Velocity: 2.3 fps Min Velocity: 1.18 fps
Avg Flow: 0.126 mgd Peak Flow: 0.226 mgd Min Flow: 0.04 mgd
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Basin 3B
Monitoring Site:Level, Velocity and Flow
From 2/22/2010 to 3/1/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
2/22 2/23 2/24 2/25 2/26 2/27 2/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.85 inches
Avg Level: 2.39 in. Peak Level: 3.43 in. Min Level: 1.24 in.
Avg Velocity: 1.85 fps Peak Velocity: 2.38 fps Min Velocity: 1.06 fps
Avg Flow: 0.139 mgd Peak Flow: 0.28 mgd Min Flow: 0.031 mgd
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Basin 3B
Monitoring Site:Level, Velocity and Flow
From 3/1/2010 to 3/8/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
3/1 3/2 3/3 3/4 3/5 3/6 3/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.61 inches
Avg Level: 2.85 in. Peak Level: 3.63 in. Min Level: 1.72 in.
Avg Velocity: 1.94 fps Peak Velocity: 2.47 fps Min Velocity: 1.41 fps
Avg Flow: 0.183 mgd Peak Flow: 0.305 mgd Min Flow: 0.063 mgd
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Basin 3B
Monitoring Site:Level, Velocity and Flow
From 3/8/2010 to 3/15/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
3/8 3/9 3/10 3/11 3/12 3/13 3/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.56 inches
Avg Level: 2.82 in. Peak Level: 3.57 in. Min Level: 1.9 in.
Avg Velocity: 1.95 fps Peak Velocity: 2.42 fps Min Velocity: 1.42 fps
Avg Flow: 0.181 mgd Peak Flow: 0.288 mgd Min Flow: 0.081 mgd
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Basin 3B
Monitoring Site:Level, Velocity and Flow
From 3/15/2010 to 3/22/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
3/15 3/16 3/17 3/18 3/19 3/20 3/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.01 inches
Avg Level: 2.54 in. Peak Level: 3.3 in. Min Level: 1.64 in.
Avg Velocity: 1.86 fps Peak Velocity: 2.31 fps Min Velocity: 1.26 fps
Avg Flow: 0.149 mgd Peak Flow: 0.252 mgd Min Flow: 0.053 mgd
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Basin 3B
Monitoring Site:Level, Velocity and Flow
From 3/22/2010 to 3/29/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
3/22 3/23 3/24 3/25 3/26 3/27 3/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.42 inches
Avg Level: 2.28 in. Peak Level: 3.28 in. Min Level: 1.41 in.
Avg Velocity: 1.74 fps Peak Velocity: 2.31 fps Min Velocity: 1.17 fps
Avg Flow: 0.121 mgd Peak Flow: 0.251 mgd Min Flow: 0.042 mgd
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Basin 3B
Monitoring Site:Level, Velocity and Flow
From 3/29/2010 to 4/5/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
3/29 3/30 3/31 4/1 4/2 4/3 4/4
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 2.99 inches
Avg Level: 2.63 in. Peak Level: 3.73 in. Min Level: 1.39 in.
Avg Velocity: 1.87 fps Peak Velocity: 2.47 fps Min Velocity: 1.25 fps
Avg Flow: 0.161 mgd Peak Flow: 0.311 mgd Min Flow: 0.042 mgd
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Basin 3B
Monitoring Site:Level, Velocity and Flow
From 4/5/2010 to 4/12/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
4/5 4/6 4/7 4/8 4/9 4/10 4/11
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.12 inches
Avg Level: 3.21 in. Peak Level: 4.05 in. Min Level: 2.43 in.
Avg Velocity: 1.82 fps Peak Velocity: 2.23 fps Min Velocity: 1.55 fps
Avg Flow: 0.201 mgd Peak Flow: 0.317 mgd Min Flow: 0.119 mgd
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Monitoring Site:
Location:
Size/Type Line:
Basin 4
MH 722: E Gobbi Street; west of Babcock Lane
21-inch Sanitary Sewer Pipe
Temporary Flow Monitoring StudySanitary Sewer Collection System
Data Summary Report
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Basin 4
Location: MH 722: E Gobbi Street; west of Babcock Lane
Diameter: 21
Monitoring Site:Site Information
Report
Average Dry Weather Flow: 0.492
Peak Measured Flow: 4.422
mgd
mgd
Flow Sketch
Satellite Map
Latitude: 39.1453°
Longitude: -123.1931°
Rim Elevation: 597 feet above sea level
inches
Street View Photo
Sanitary Map
Plan View Photo
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0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
16-Jan
Sat
17-Jan
Sun
18-Jan
Mon
19-Jan
Tue
20-Jan
Wed
21-Jan
Thu
22-Jan
Fri
23-Jan
Sat
24-Jan
Sun
25-Jan
Mon
26-Jan
Tue
27-Jan
Wed
28-Jan
Thu
29-Jan
Fri
30-Jan
Sat
31-Jan
Sun
1-Feb
Mon
2
F l o w
( m g d )
MPeriod Flow Summary
1 .
7 1 2
2 .
2 9 9
2 .
4 5 1
1 .
9 5 5
3 .
5 1 9
3 .
4 6 2
2 .
6 9 2
2 .
2 7 2
2 .
0 9 3
1 .
7 8 4
1 .
6 9 5
1 .
5 8 5
1 .
7 8 9
2 .
2 2 9
1 .
7 6 3
1 .
7 7 5
1 .
5 9 9
1 .
5 0 4
1 .
4 4 1
1 .
2 0 0
1 .
1 5 3
1 .
1 1 6
1 .
0 4 7
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
F l o w ( M
G a l )
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
6-Feb
Sat
7-Feb
Sun
8-Feb
Mon
9-Feb
Tue
10-Feb
Wed
11-Feb
Thu
12-Feb
Fri
13-Feb
Sat
14-Feb
Sun
15-Feb
Mon
16-Feb
Tue
17-Feb
Wed
18-Feb
Thu
19-Feb
Fri
20-Feb
Sat
21-Feb
Sun
22-Feb
Mon
2
F l o w
( m g d )
0 .
5 4 3
0 .
5 7 8
1 .
7 6 9
1 .
8 5 8
1 .
9 7 8
1 .
8 2 2
2 .
1 6 5
1 .
9 3 4
1 .
3 4 6
1 .
2 9 0
1 .
0 3 1
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
1 .
1 3 4
1 .
2 6 3
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
January 16 to February 27, 2010
Total Monthly Rainfall: 15.49 inches Avg Flow: 1.66 mgd Peak Flow: 4.42 mgd Min Flow: 0.28 mgd
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0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
27-Feb
Sat
28-Feb
Sun
1-Mar
Mon
2-Mar
Tue
3-Mar
Wed
4-Mar
Thu
5-Mar
Fri
6-Mar
Sat
7-Mar
Sun
8-Mar
Mon
9-Mar
Tue
10-Mar
Wed
11-Mar
Thu
12-Mar
Fri
13-Mar
Sat
14-Mar
Sun
15-Mar
Mon
1
F l o w
( m g d )
MPeriod Flow Summary
1 .
1 4 8
1 .
4 4 2
2 .
0 1 9
1 .
8 5 2
1 .
5 8 8
1 .
2 0 5
1 .
2 0 3
1 .
2 4 5
1 .
1 3 2
1 .
6 0 4
1 .
3 4 0
1 .
2 6 7
1 .
1 9 8
1 .
1 9 4
1 .
1 1 5
0 .
9 9 2
0 .
9 3 4
0 .
9 4 1
0 .
9 4 6
0 .
9 0 6
0 .
9 0 7
1 .
0 7 5
1 .
4 8 2
1 .
4 8 5
1 .
6 3 1
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
F l o w ( M
G a l )
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
20-Mar
Sat
21-Mar
Sun
22-Mar
Mon
23-Mar
Tue
24-Mar
Wed
25-Mar
Thu
26-Mar
Fri
27-Mar
Sat
28-Mar
Sun
29-Mar
Mon
30-Mar
Tue
31-Mar
Wed
1-Apr
Thu
2-Apr
Fri
3-Apr
Sat
4-Apr
Sun
5-Apr
Mon
6
F l o w
( m g d )
1 .
3 6 1
1 .
1 8 1
1 .
4 5 1
1 .
2 7 4
1 .
7 0 5
1 .
4 1 9
1 .
0 1 7
0 .
9 8 9
0 .
8 6 9
0 .
8 3 5
1 .
6 4 3
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
February 27, 2010 to April 9, 2010
Total Monthly Rainfall: 7.5 inches Avg Flow: 1.34 mgd Peak Flow: 2.74 mgd Min Flow: 0.63 mgd
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M Average Dry Weather Flow
0.000
0.100
0.200
0.300
0.400
0.500
0.600
0.700
0.800
0 : 0 0
1 : 0 0
2 : 0 0
3 : 0 0
4 : 0 0
5 : 0 0
6 : 0 0
7 : 0 0
8 : 0 0
9 : 0 0
1 0 : 0 0
1 1 : 0 0
1 2 : 0 0
1 3 : 0 0
1 4 : 0 0
1 5 : 0 0
1 6 : 0 0
1 7 : 0 0
1 8 : 0 0
1 9 : 0 0
2 0 : 0 0
2 1 : 0 0
2 2 : 0 0
2 3 : 0 0
F l o w ( m
g d )
WeekdayWeekend
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MoI/I Summary
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
0 1 / 1 7
0 1 / 1 8
0 1 / 1 9
0 1 / 2 0
0 1 / 2 1
0 1 / 2 2
0 1 / 2 3
0 1 / 2 4
0 1 / 2 5
0 1 / 2 6
0 1 / 2 7
0 1 / 2 8
0 1 / 2 9
0 1 / 3 0
0 1 / 3 1
F l o w (
m g d )
Event 1 I&I ANALYSIS (Rainfall = 12.09 inches)
Inflow Infiltration on 2/2/2010 (post rain event) Total I&I
Total I/I: gallons27,826,000
I/I per ADWF: per in-rain4.68
Peak I/I Rate: mgd 3.87
Pk I/I:ADWF: 7.87
Infiltration Rate: 1.19
12.4%R-Value:
15,600I/I per IDM: gal/IDM/in-rai
Pk I/I:ACRE: 5,680
Pk I/I:IDM: 26,300
mgd
Infiltration:ADWF: 2.41
Infiltration:ACRE: 1,740
Infiltration:IDM: 8,000 gpd/IDM
gpd/acre
gpd/IDM
gpd/acre
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Basin 4
Monitoring Site:Level, Velocity and Flow
From 1/11/2010 to 1/18/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
1/11 1/12 1/13 1/14 1/15 1/16 1/17
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.87 inches
Avg Level: 4.43 in. Peak Level: 6.02 in. Min Level: 3.26 in.
Avg Velocity: 2.3 fps Peak Velocity: 2.87 fps Min Velocity: 1.8 fps
Avg Flow: 0.567 mgd Peak Flow: 1.042 mgd Min Flow: 0.277 mgd
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Basin 4
Monitoring Site:Level, Velocity and Flow
From 1/18/2010 to 1/25/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
1/18 1/19 1/20 1/21 1/22 1/23 1/24
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 8.55 inches
Avg Level: 7.94 in. Peak Level: 11.31 in. Min Level: 4.26 in.
Avg Velocity: 3.42 fps Peak Velocity: 3.91 fps Min Velocity: 2.14 fps
Avg Flow: 1.882 mgd Peak Flow: 3.236 mgd Min Flow: 0.485 mgd
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Basin 4
Monitoring Site:Level, Velocity and Flow
From 1/25/2010 to 2/1/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
1/25 1/26 1/27 1/28 1/29 1/30 1/31
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 2.61 inches
Avg Level: 9.79 in. Peak Level: 14.04 in. Min Level: 7.45 in.
Avg Velocity: 3.54 fps Peak Velocity: 4.06 fps Min Velocity: 3.17 fps
Avg Flow: 2.548 mgd Peak Flow: 4.422 mgd Min Flow: 1.585 mgd
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Basin 4
Monitoring Site:Level, Velocity and Flow
From 2/1/2010 to 2/8/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
2/1 2/2 2/3 2/4 2/5 2/6 2/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.14 inches
Avg Level: 8.23 in. Peak Level: 10.62 in. Min Level: 6.41 in.
Avg Velocity: 3.32 fps Peak Velocity: 3.65 fps Min Velocity: 2.92 fps
Avg Flow: 1.883 mgd Peak Flow: 2.76 mgd Min Flow: 1.178 mgd
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Basin 4
Monitoring Site:Level, Velocity and Flow
From 2/8/2010 to 2/15/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
2/8 2/9 2/10 2/11 2/12 2/13 2/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.33 inches
Avg Level: 7.25 in. Peak Level: 8.89 in. Min Level: 6.08 in.
Avg Velocity: 3.2 fps Peak Velocity: 3.5 fps Min Velocity: 2.83 fps
Avg Flow: 1.531 mgd Peak Flow: 2.195 mgd Min Flow: 1.058 mgd
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Basin 4
Monitoring Site:Level, Velocity and Flow
From 2/15/2010 to 2/22/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
2/15 2/16 2/17 2/18 2/19 2/20 2/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.01 inches
Avg Level: 6.17 in. Peak Level: 7.42 in. Min Level: 5.02 in.
Avg Velocity: 2.9 fps Peak Velocity: 3.26 fps Min Velocity: 2.5 fps
Avg Flow: 1.114 mgd Peak Flow: 1.557 mgd Min Flow: 0.716 mgd
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Basin 4
Monitoring Site:Level, Velocity and Flow
From 2/22/2010 to 3/1/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
2/22 2/23 2/24 2/25 2/26 2/27 2/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 2.02 inches
Avg Level: 6.13 in. Peak Level: 8.81 in. Min Level: 4.61 in.
Avg Velocity: 2.98 fps Peak Velocity: 3.5 fps Min Velocity: 2.32 fps
Avg Flow: 1.141 mgd Peak Flow: 2.169 mgd Min Flow: 0.603 mgd
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Basin 4
Monitoring Site:Level, Velocity and Flow
From 3/1/2010 to 3/8/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
3/1 3/2 3/3 3/4 3/5 3/6 3/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.78 inches
Avg Level: 7.2 in. Peak Level: 9.32 in. Min Level: 5.22 in.
Avg Velocity: 3.23 fps Peak Velocity: 3.61 fps Min Velocity: 2.69 fps
Avg Flow: 1.539 mgd Peak Flow: 2.391 mgd Min Flow: 0.829 mgd
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Basin 4
Monitoring Site:Level, Velocity and Flow
From 3/8/2010 to 3/15/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
3/8 3/9 3/10 3/11 3/12 3/13 3/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.67 inches
Avg Level: 6.83 in. Peak Level: 9.41 in. Min Level: 5.24 in.
Avg Velocity: 3.06 fps Peak Velocity: 3.46 fps Min Velocity: 2.62 fps
Avg Flow: 1.359 mgd Peak Flow: 2.27 mgd Min Flow: 0.802 mgd
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Basin 4
Monitoring Site:Level, Velocity and Flow
From 3/15/2010 to 3/22/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
3/15 3/16 3/17 3/18 3/19 3/20 3/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.03 inches
Avg Level: 6.32 in. Peak Level: 7.8 in. Min Level: 5.28 in.
Avg Velocity: 2.92 fps Peak Velocity: 3.3 fps Min Velocity: 2.44 fps
Avg Flow: 1.16 mgd Peak Flow: 1.652 mgd Min Flow: 0.758 mgd
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Basin 4
Monitoring Site:Level, Velocity and Flow
From 3/22/2010 to 3/29/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
3/22 3/23 3/24 3/25 3/26 3/27 3/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.56 inches
Avg Level: 5.59 in. Peak Level: 6.63 in. Min Level: 4.77 in.
Avg Velocity: 2.75 fps Peak Velocity: 3.13 fps Min Velocity: 2.35 fps
Avg Flow: 0.917 mgd Peak Flow: 1.216 mgd Min Flow: 0.63 mgd
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Basin 4
Monitoring Site:Level, Velocity and Flow
From 3/29/2010 to 4/5/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
3/29 3/30 3/31 4/1 4/2 4/3 4/4
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 3.31 inches
Avg Level: 7.08 in. Peak Level: 10.56 in. Min Level: 4.79 in.
Avg Velocity: 3.09 fps Peak Velocity: 3.57 fps Min Velocity: 2.33 fps
Avg Flow: 1.453 mgd Peak Flow: 2.736 mgd Min Flow: 0.634 mgd
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Basin 4
Monitoring Site:Level, Velocity and Flow
From 4/5/2010 to 4/12/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
18.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
4.50
5.00
4/5 4/6 4/7 4/8 4/9 4/10 4/11
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.13 inches
Avg Level: 7.94 in. Peak Level: 9.8 in. Min Level: 6.34 in.
Avg Velocity: 3.27 fps Peak Velocity: 3.55 fps Min Velocity: 2.92 fps
Avg Flow: 1.77 mgd Peak Flow: 2.492 mgd Min Flow: 1.18 mgd
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Monitoring Site:
Location:
Size/Type Line:
Basin 5
Vichy Springs PS: Vichy Springs Road andRedemeyer Road
-inch Sanitary Sewer Pipe
Temporary Flow Monitoring StudySanitary Sewer Collection System
Data Summary Report
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Basin 5
Location: Vichy Springs PS: Vichy Springs Road and Redemeyer Road
Monitoring Site:Site Information
Report
Average Dry Weather Flow: 0.016
Peak Measured Flow: 0.183
mgd
mgd
Satellite Map
Latitude: 39.1607°
Longitude: -123.1863°
Rim Elevation: 621 feet above sea level
Street View PhotoSanitary Map
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M Average Dry Weather Flow
Average Dry Weather Flow: mgd 0.02
0.000
0.005
0.010
0.015
0.020
0.025
0.030
0.035
0 : 0 0
1 : 0 0
2 : 0 0
3 : 0 0
4 : 0 0
5 : 0 0
6 : 0 0
7 : 0 0
8 : 0 0
9 : 0 0
1 0 : 0 0
1 1 : 0 0
1 2 : 0 0
1 3 : 0 0
1 4 : 0 0
1 5 : 0 0
1 6 : 0 0
1 7 : 0 0
1 8 : 0 0
F l o w
( m g d
)
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MoI/I Summary
0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
0.20
0 1 / 1 7
0 1 / 1 8
0 1 / 1 9
0 1 / 2 0
0 1 / 2 1
0 1 / 2 2
0 1 / 2 3
0 1 / 2 4
0 1 / 2 5
0 1 / 2 6
0 1 / 2 7
0 1 / 2 8
0 1 / 2 9
0 1 / 3 0
0 1 / 3 1
F l o w (
m g d )
Event 1 I&I ANALYSIS (Rainfall = 9.87 inches)
Inflow Infiltration on 2/2/2010 (post rain event) Total I&I
Total I/I: gallons737,000
I/I per ADWF: per in-rain4.63
Peak I/I Rate: mgd 0.10
Pk I/I:ADWF: 5.99
Infiltration Rate: 0.01
0.4%R-Value:
3,500I/I per IDM: gal/IDM/in-rai
Pk I/I:ACRE: 160
Pk I/I:IDM: 4,600
mgd
Infiltration:ADWF: 0.87
Infiltration:ACRE: 20
Infiltration:IDM: 700 gpd/IDM
gpd/acre
gpd/IDM
gpd/acre
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Monitoring Site:
Location:
Size/Type Line:
Basin 6
MH 667: E Perkins Street; west of Oak ManorDrive
15-inch Sanitary Sewer Pipe
Temporary Flow Monitoring StudySanitary Sewer Collection System
Data Summary Report
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Basin 6
Location: MH 667: E Perkins Street; west of Oak Manor Drive
Diameter: 15
Monitoring Site:Site Information
Report
Average Dry Weather Flow: 0.200
Peak Measured Flow: 1.012
mgd
mgd
Flow Sketch
Satellite Map
Latitude: 39.1516°
Longitude: -123.1936°
Rim Elevation: 601 feet above sea level
inches
Street View Photo
Sanitary Map
Plan View Photo
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0.00
0.20
0.40
0.60
0.80
1.00
1.20
16-Jan
Sat
17-Jan
Sun
18-Jan
Mon
19-Jan
Tue
20-Jan
Wed
21-Jan
Thu
22-Jan
Fri
23-Jan
Sat
24-Jan
Sun
25-Jan
Mon
26-Jan
Tue
27-Jan
Wed
28-Jan
Thu
29-Jan
Fri
30-Jan
Sat
31-Jan
Sun
1-Feb
Mon
2
F l o w
( m g d )
MPeriod Flow Summary
0 .
3 9 5
0 .
4 6 7
0 .
4 4 4
0 .
3 8 7
0 .
7 6 2
0 .
7 4 3
0 .
6 1 8
0 .
5 5 7
0 .
5 2 0
0 .
4 6 7
0 .
4 4 7
0 .
4 2 8
0 .
4 7 9
0 .
4 9 5
0 .
4 7 1
0 .
4 8 5
0 .
4 3 9
0 .
4 4 0
0 .
4 2 6
0 .
3 9 0
0 .
3 9 5
0 .
3 6 9
0 .
3 6 5
0.000.100.200.300.400.500.600.700.80
0.90
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
F l o w ( M
G a l )
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
6-Feb
Sat
7-Feb
Sun
8-Feb
Mon
9-Feb
Tue
10-Feb
Wed
11-Feb
Thu
12-Feb
Fri
13-Feb
Sat
14-Feb
Sun
15-Feb
Mon
16-Feb
Tue
17-Feb
Wed
18-Feb
Thu
19-Feb
Fri
20-Feb
Sat
21-Feb
Sun
22-Feb
Mon
2
F l o w
( m g d )
0 .
2 4 2
0 .
2 4 2
0 .
3 6 6
0 .
4 2 1
0 .
5 0 4
0 .
4 8 3
0 .
5 2 3
0 .
4 9 4
0 .
4 1 3
0 .
3 8 9
0 .
3 5 4
0.000.100.200.300.400.500.600.700.80
0.90
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
0 .
3 4 0
0 .
4 0 8
0.000.100.200.300.400.500.600.700.80
0.90
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
January 16 to February 27, 2010
Total Monthly Rainfall: 15.56 inches Avg Flow: 0.44 mgd Peak Flow: 1.01 mgd Min Flow: 0.05 mgd
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0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
27-Feb
Sat
28-Feb
Sun
1-Mar
Mon
2-Mar
Tue
3-Mar
Wed
4-Mar
Thu
5-Mar
Fri
6-Mar
Sat
7-Mar
Sun
8-Mar
Mon
9-Mar
Tue
10-Mar
Wed
11-Mar
Thu
12-Mar
Fri
13-Mar
Sat
14-Mar
Sun
15-Mar
Mon
1
F l o w
( m g d )
MPeriod Flow Summary
0 .
3 4 0
0 .
4 2 2
0 .
4 8 4
0 .
4 5 5
0 .
4 8 0
0 .
4 1 7
0 .
4 1 5
0 .
4 0 4
0 .
4 0 8
0 .
4 8 7
0 .
4 3 7
0 .
4 2 8
0 .
4 2 1
0 .
4 1 9
0 .
4 1 2
0 .
3 9 2
0 .
3 7 1
0 .
3 6 2
0 .
3 6 4
0 .
3 5 7
0 .
3 6 9
0 .
4 1 1
0 .
4 3 9
0 .
4 0 7
0 .
4 6 2
0.000.100.200.300.400.500.600.700.80
0.90
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
F l o w ( M
G a l )
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
20-Mar
Sat
21-Mar
Sun
22-Mar
Mon
23-Mar
Tue
24-Mar
Wed
25-Mar
Thu
26-Mar
Fri
27-Mar
Sat
28-Mar
Sun
29-Mar
Mon
30-Mar
Tue
31-Mar
Wed
1-Apr
Thu
2-Apr
Fri
3-Apr
Sat
4-Apr
Sun
5-Apr
Mon
6
F l o w
( m g d )
0 .
4 3 7
0 .
3 5 5
0 .
4 7 4
0 .
4 4 9
0 .
4 7 0
0 .
4 5 0
0 .
4 0 5
0 .
4 0 9
0 .
3 4 3
0 .
3 5 4
0 .
4 5 2
0.000.100.200.300.400.500.600.700.80
0.90
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
0.000.100.200.300.400.500.600.700.80
0.90
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
February 27, 2010 to April 9, 2010
Total Monthly Rainfall: 7.83 inches Avg Flow: 0.42 mgd Peak Flow: 0.74 mgd Min Flow: 0.16 mgd
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M Average Dry Weather Flow
0.000
0.050
0.100
0.150
0.200
0.250
0.300
0.350
0.400
0 : 0 0
1 : 0 0
2 : 0 0
3 : 0 0
4 : 0 0
5 : 0 0
6 : 0 0
7 : 0 0
8 : 0 0
9 : 0 0
1 0 : 0 0
1 1 : 0 0
1 2 : 0 0
1 3 : 0 0
1 4 : 0 0
1 5 : 0 0
1 6 : 0 0
1 7 : 0 0
1 8 : 0 0
1 9 : 0 0
2 0 : 0 0
2 1 : 0 0
2 2 : 0 0
2 3 : 0 0
F l o w ( m
g d )
WeekdayWeekend
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MoI/I Summary
0.00
0.20
0.40
0.60
0.80
1.00
1.20
0 1 / 1 7
0 1 / 1 8
0 1 / 1 9
0 1 / 2 0
0 1 / 2 1
0 1 / 2 2
0 1 / 2 3
0 1 / 2 4
0 1 / 2 5
0 1 / 2 6
0 1 / 2 7
0 1 / 2 8
0 1 / 2 9
0 1 / 3 0
0 1 / 3 1
F l o w (
m g d )
Event 1 I&I ANALYSIS (Rainfall = 12.21 inches)
Inflow Infiltration on 2/2/2010 (post rain event) Total I&I
Total I/I: gallons5,000,000
I/I per ADWF: per in-rain2.05
Peak I/I Rate: mgd 0.78
Pk I/I:ADWF: 3.88
Infiltration Rate: 0.25
2.9%R-Value:
4,900I/I per IDM: gal/IDM/in-rai
Pk I/I:ACRE: 1,470
Pk I/I:IDM: 9,200
mgd
Infiltration:ADWF: 1.24
Infiltration:ACRE: 470
Infiltration:IDM: 2,900 gpd/IDM
gpd/acre
gpd/IDM
gpd/acre
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Basin 6
Monitoring Site:Level, Velocity and Flow
From 1/11/2010 to 1/18/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1/11 1/12 1/13 1/14 1/15 1/16 1/17
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.91 inches
Avg Level: 2.87 in. Peak Level: 4.78 in. Min Level: 1.46 in.
Avg Velocity: 2.09 fps Peak Velocity: 2.82 fps Min Velocity: 1.29 fps
Avg Flow: 0.242 mgd Peak Flow: 0.612 mgd Min Flow: 0.052 mgd
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Basin 6
Monitoring Site:Level, Velocity and Flow
From 1/18/2010 to 1/25/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
1/18 1/19 1/20 1/21 1/22 1/23 1/24
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 8.6 inches
Avg Level: 3.78 in. Peak Level: 5.39 in. Min Level: 1.84 in.
Avg Velocity: 2.47 fps Peak Velocity: 3 fps Min Velocity: 1.57 fps
Avg Flow: 0.403 mgd Peak Flow: 0.76 mgd Min Flow: 0.088 mgd
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Basin 6
Monitoring Site:Level, Velocity and Flow
From 1/25/2010 to 2/1/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1/25 1/26 1/27 1/28 1/29 1/30 1/31
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 2.65 inches
Avg Level: 4.67 in. Peak Level: 6.38 in. Min Level: 3.08 in.
Avg Velocity: 2.79 fps Peak Velocity: 3.25 fps Min Velocity: 2.18 fps
Avg Flow: 0.598 mgd Peak Flow: 1.012 mgd Min Flow: 0.256 mgd
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Basin 6
Monitoring Site:Level, Velocity and Flow
From 2/1/2010 to 2/8/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
2/1 2/2 2/3 2/4 2/5 2/6 2/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.04 inches
Avg Level: 4.15 in. Peak Level: 5.56 in. Min Level: 2.8 in.
Avg Velocity: 2.61 fps Peak Velocity: 2.94 fps Min Velocity: 1.99 fps
Avg Flow: 0.476 mgd Peak Flow: 0.766 mgd Min Flow: 0.204 mgd
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Basin 6
Monitoring Site:Level, Velocity and Flow
From 2/8/2010 to 2/15/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
2/8 2/9 2/10 2/11 2/12 2/13 2/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.3 inches
Avg Level: 3.96 in. Peak Level: 5.24 in. Min Level: 2.84 in.
Avg Velocity: 2.57 fps Peak Velocity: 2.98 fps Min Velocity: 2.02 fps
Avg Flow: 0.438 mgd Peak Flow: 0.735 mgd Min Flow: 0.212 mgd
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Basin 6
Monitoring Site:Level, Velocity and Flow
From 2/15/2010 to 2/22/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
2/15 2/16 2/17 2/18 2/19 2/20 2/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlow
Avg Level: 3.65 in. Peak Level: 4.75 in. Min Level: 2.59 in.
Avg Velocity: 2.47 fps Peak Velocity: 2.93 fps Min Velocity: 1.94 fps
Avg Flow: 0.376 mgd Peak Flow: 0.602 mgd Min Flow: 0.178 mgd
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Basin 6
Monitoring Site:Level, Velocity and Flow
From 2/22/2010 to 3/1/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
2/22 2/23 2/24 2/25 2/26 2/27 2/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 2.09 inches
Avg Level: 3.77 in. Peak Level: 5.68 in. Min Level: 2.49 in.
Avg Velocity: 2.43 fps Peak Velocity: 2.92 fps Min Velocity: 1.86 fps
Avg Flow: 0.389 mgd Peak Flow: 0.804 mgd Min Flow: 0.163 mgd
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Basin 6
Monitoring Site:Level, Velocity and Flow
From 3/1/2010 to 3/8/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
3/1 3/2 3/3 3/4 3/5 3/6 3/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.85 inches
Avg Level: 4.14 in. Peak Level: 5.19 in. Min Level: 2.74 in.
Avg Velocity: 2.45 fps Peak Velocity: 2.87 fps Min Velocity: 1.73 fps
Avg Flow: 0.443 mgd Peak Flow: 0.662 mgd Min Flow: 0.173 mgd
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Basin 6
Monitoring Site:Level, Velocity and Flow
From 3/8/2010 to 3/15/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
3/8 3/9 3/10 3/11 3/12 3/13 3/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.73 inches
Avg Level: 4.03 in. Peak Level: 5.44 in. Min Level: 2.79 in.
Avg Velocity: 2.49 fps Peak Velocity: 2.86 fps Min Velocity: 1.96 fps
Avg Flow: 0.436 mgd Peak Flow: 0.733 mgd Min Flow: 0.199 mgd
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Basin 6
Monitoring Site:Level, Velocity and Flow
From 3/15/2010 to 3/22/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
3/15 3/16 3/17 3/18 3/19 3/20 3/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.03 inches
Avg Level: 3.95 in. Peak Level: 5.11 in. Min Level: 2.71 in.
Avg Velocity: 2.47 fps Peak Velocity: 2.85 fps Min Velocity: 2.02 fps
Avg Flow: 0.419 mgd Peak Flow: 0.619 mgd Min Flow: 0.202 mgd
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Basin 6
Monitoring Site:Level, Velocity and Flow
From 3/22/2010 to 3/29/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
3/22 3/23 3/24 3/25 3/26 3/27 3/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.61 inches
Avg Level: 3.67 in. Peak Level: 5.13 in. Min Level: 2.5 in.
Avg Velocity: 2.36 fps Peak Velocity: 2.81 fps Min Velocity: 1.83 fps
Avg Flow: 0.363 mgd Peak Flow: 0.618 mgd Min Flow: 0.162 mgd
7/27/2019 09-0747 WK Ukiah Draft FM and II Report
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Basin 6
Monitoring Site:Level, Velocity and Flow
From 3/29/2010 to 4/5/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
3/29 3/30 3/31 4/1 4/2 4/3 4/4
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 3.44 inches
Avg Level: 4.04 in. Peak Level: 5.58 in. Min Level: 2.51 in.
Avg Velocity: 2.46 fps Peak Velocity: 2.79 fps Min Velocity: 1.98 fps
Avg Flow: 0.432 mgd Peak Flow: 0.74 mgd Min Flow: 0.175 mgd
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Basin 6
Monitoring Site:Level, Velocity and Flow
From 4/5/2010 to 4/12/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
0.80
0.90
1.00
4/5 4/6 4/7 4/8 4/9 4/10 4/11
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.12 inches
Avg Level: 4.09 in. Peak Level: 5.21 in. Min Level: 3.01 in.
Avg Velocity: 2.47 fps Peak Velocity: 2.79 fps Min Velocity: 1.99 fps
Avg Flow: 0.44 mgd Peak Flow: 0.679 mgd Min Flow: 0.226 mgd
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Monitoring Site:
Location:
Size/Type Line:
Basin 7A
MH 120 North: Ford Road; under the US 101Highway Overpass
15-inch Sanitary Sewer Pipe
Temporary Flow Monitoring StudySanitary Sewer Collection System
Data Summary Report
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Basin 7A
Location: MH 120 North: Ford Road; under theUS 101 Highway Overpass
Diameter: 15
Monitoring Site:Site Information
Report
Average Dry Weather Flow: 0.110
Peak Measured Flow: 0.504
mgd
mgd
Flow Sketch
Satellite Map
Latitude: 39.1675°
Longitude: -123.2056°
Rim Elevation: 619 feet above sea level
inches
Street View Photo
Sanitary Map
Plan View Photo
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0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
16-Jan
Sat
17-Jan
Sun
18-Jan
Mon
19-Jan
Tue
20-Jan
Wed
21-Jan
Thu
22-Jan
Fri
23-Jan
Sat
24-Jan
Sun
25-Jan
Mon
26-Jan
Tue
27-Jan
Wed
28-Jan
Thu
29-Jan
Fri
30-Jan
Sat
31-Jan
Sun
1-Feb
Mon
2
F l o w
( m g d )
MPeriod Flow Summary
0 .
2 3 8
0 .
2 9 4
0 .
2 4 4
0 .
1 9 7
0 .
3 8 2
0 .
2 9 1
0 .
2 1 7
0 .
1 8 7
0 .
1 7 5
0 .
1 5 9
0 .
1 5 1
0 .
1 4 5
0 .
1 6 4
0 .
1 6 5
0 .
1 5 3
0 .
1 5 3
0 .
1 4 8
0 .
1 4 0
0 .
1 3 6
0 .
1 4 5
0 .
1 4 6
0 .
1 5 0
0 .
1 3 9
0.000.050.100.150.200.250.300.350.40
0.45
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
F l o w ( M
G a l )
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
6-Feb
Sat
7-Feb
Sun
8-Feb
Mon
9-Feb
Tue
10-Feb
Wed
11-Feb
Thu
12-Feb
Fri
13-Feb
Sat
14-Feb
Sun
15-Feb
Mon
16-Feb
Tue
17-Feb
Wed
18-Feb
Thu
19-Feb
Fri
20-Feb
Sat
21-Feb
Sun
22-Feb
Mon
2
F l o w
( m g d )
0 .
1 2 4
0 .
1 1 5
0 .
1 6 9
0 .
1 9 2
0 .
1 6 6
0 .
1 5 6
0 .
1 7 0
0 .
1 6 1
0 .
1 3 4
0 .
1 2 9
0 .
1 3 0
0.000.050.100.150.200.250.300.350.40
0.45
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
0 .
1 7 9
0 .
1 3 7
0.000.050.100.150.200.250.300.350.40
0.45
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
January 16 to February 27, 2010
Total Monthly Rainfall: 14.51 inches Avg Flow: 0.17 mgd Peak Flow: 0.5 mgd Min Flow: 0.05 mgd
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0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
27-Feb
Sat
28-Feb
Sun
1-Mar
Mon
2-Mar
Tue
3-Mar
Wed
4-Mar
Thu
5-Mar
Fri
6-Mar
Sat
7-Mar
Sun
8-Mar
Mon
9-Mar
Tue
10-Mar
Wed
11-Mar
Thu
12-Mar
Fri
13-Mar
Sat
14-Mar
Sun
15-Mar
Mon
1
F l o w
( m g d )
MPeriod Flow Summary
0 .
1 4 8
0 .
1 6 4
0 .
1 8 8
0 .
1 6 2
0 .
1 4 6
0 .
1 4 2
0 .
1 4 6
0 .
1 5 6
0 .
1 3 8
0 .
1 5 8
0 .
1 4 6
0 .
1 3 8
0 .
1 2 9
0 .
1 3 0
0 .
1 2 6
0 .
1 2 7
0 .
1 2 9
0 .
1 2 6
0 .
1 2 8
0 .
1 1 8
0 .
1 2 8
0 .
1 3 8
0 .
1 6 2
0 .
1 4 5
0 .
1 5 3
0.000.050.100.150.200.250.300.350.40
0.45
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
F l o w ( M
G a l )
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
20-Mar
Sat
21-Mar
Sun
22-Mar
Mon
23-Mar
Tue
24-Mar
Wed
25-Mar
Thu
26-Mar
Fri
27-Mar
Sat
28-Mar
Sun
29-Mar
Mon
30-Mar
Tue
31-Mar
Wed
1-Apr
Thu
2-Apr
Fri
3-Apr
Sat
4-Apr
Sun
5-Apr
Mon
6
F l o w
( m g d )
0 .
1 5 1
0 .
1 4 0
0 .
1 3 9
0 .
1 3 5
0 .
1 5 0
0 .
1 3 5
0 .
1 1 8
0 .
1 1 5
0 .
1 1 8
0 .
1 2 7
0 .
1 4 5
0.000.050.100.150.200.250.300.350.40
0.45
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
0.000.050.100.150.200.250.300.350.40
0.45
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
February 27, 2010 to April 9, 2010
Total Monthly Rainfall: 6.99 inches Avg Flow: 0.14 mgd Peak Flow: 0.3 mgd Min Flow: 0.04 mgd
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M Average Dry Weather Flow
0.000
0.020
0.040
0.060
0.080
0.100
0.120
0.140
0.160
0.180
0 : 0 0
1 : 0 0
2 : 0 0
3 : 0 0
4 : 0 0
5 : 0 0
6 : 0 0
7 : 0 0
8 : 0 0
9 : 0 0
1 0 : 0 0
1 1 : 0 0
1 2 : 0 0
1 3 : 0 0
1 4 : 0 0
1 5 : 0 0
1 6 : 0 0
1 7 : 0 0
1 8 : 0 0
1 9 : 0 0
2 0 : 0 0
2 1 : 0 0
2 2 : 0 0
2 3 : 0 0
F l o w ( m
g d )
WeekdayWeekend
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MoI/I Summary
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0 1 / 1 7
0 1 / 1 8
0 1 / 1 9
0 1 / 2 0
0 1 / 2 1
0 1 / 2 2
0 1 / 2 3
0 1 / 2 4
0 1 / 2 5
0 1 / 2 6
0 1 / 2 7
0 1 / 2 8
0 1 / 2 9
0 1 / 3 0
0 1 / 3 1
F l o w (
m g d )
Event 1 I&I ANALYSIS (Rainfall = 11.1 inches)
Inflow Infiltration on 2/2/2010 (post rain event) Total I&I
Total I/I: gallons1,679,000
I/I per ADWF: per in-rain1.37
Peak I/I Rate: mgd 0.37
Pk I/I:ADWF: 3.37
Infiltration Rate: 0.04
0.8%R-Value:
2,100I/I per IDM: gal/IDM/in-rai
Pk I/I:ACRE: 520
Pk I/I:IDM: 5,100
mgd
Infiltration:ADWF: 0.35
Infiltration:ACRE: 50
Infiltration:IDM: 500 gpd/IDM
gpd/acre
gpd/IDM
gpd/acre
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Basin 7A
Monitoring Site:Level, Velocity and Flow
From 1/11/2010 to 1/18/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
1/11 1/12 1/13 1/14 1/15 1/16 1/17
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.81 inches
Avg Level: 4.68 in. Peak Level: 5.9 in. Min Level: 3.46 in.
Avg Velocity: 0.58 fps Peak Velocity: 0.81 fps Min Velocity: 0.28 fps
Avg Flow: 0.118 mgd Peak Flow: 0.21 mgd Min Flow: 0.045 mgd
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Basin 7A
Monitoring Site:Level, Velocity and Flow
From 1/18/2010 to 1/25/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
1/18 1/19 1/20 1/21 1/22 1/23 1/24
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 7.86 inches
Avg Level: 6.88 in. Peak Level: 9.19 in. Min Level: 3.69 in.
Avg Velocity: 0.62 fps Peak Velocity: 1.03 fps Min Velocity: 0.33 fps
Avg Flow: 0.216 mgd Peak Flow: 0.499 mgd Min Flow: 0.064 mgd
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Basin 7A
Monitoring Site:Level, Velocity and Flow
From 1/25/2010 to 2/1/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
1/25 1/26 1/27 1/28 1/29 1/30 1/31
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 2.38 inches
Avg Level: 7.66 in. Peak Level: 10.43 in. Min Level: 5.85 in.
Avg Velocity: 0.55 fps Peak Velocity: 0.92 fps Min Velocity: 0.29 fps
Avg Flow: 0.225 mgd Peak Flow: 0.504 mgd Min Flow: 0.087 mgd
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Basin 7A
Monitoring Site:Level, Velocity and Flow
From 2/1/2010 to 2/8/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
2/1 2/2 2/3 2/4 2/5 2/6 2/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.22 inches
Avg Level: 6.75 in. Peak Level: 8.14 in. Min Level: 5.41 in.
Avg Velocity: 0.47 fps Peak Velocity: 0.74 fps Min Velocity: 0.22 fps
Avg Flow: 0.159 mgd Peak Flow: 0.313 mgd Min Flow: 0.067 mgd
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Basin 7A
Monitoring Site:Level, Velocity and Flow
From 2/8/2010 to 2/15/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
2/8 2/9 2/10 2/11 2/12 2/13 2/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.36 inches
Avg Level: 6.34 in. Peak Level: 7.42 in. Min Level: 5.07 in.
Avg Velocity: 0.46 fps Peak Velocity: 0.69 fps Min Velocity: 0.22 fps
Avg Flow: 0.142 mgd Peak Flow: 0.237 mgd Min Flow: 0.061 mgd
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Basin 7A
Monitoring Site:Level, Velocity and Flow
From 2/15/2010 to 2/22/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
2/15 2/16 2/17 2/18 2/19 2/20 2/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.02 inches
Avg Level: 5.78 in. Peak Level: 7.31 in. Min Level: 4.23 in.
Avg Velocity: 0.51 fps Peak Velocity: 0.76 fps Min Velocity: 0.21 fps
Avg Flow: 0.14 mgd Peak Flow: 0.232 mgd Min Flow: 0.051 mgd
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Basin 7A
Monitoring Site:Level, Velocity and Flow
From 2/22/2010 to 3/1/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
2/22 2/23 2/24 2/25 2/26 2/27 2/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.89 inches
Avg Level: 5.85 in. Peak Level: 7.37 in. Min Level: 4.15 in.
Avg Velocity: 0.54 fps Peak Velocity: 0.9 fps Min Velocity: 0.24 fps
Avg Flow: 0.149 mgd Peak Flow: 0.325 mgd Min Flow: 0.052 mgd
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Basin 7A
Monitoring Site:Level, Velocity and Flow
From 3/1/2010 to 3/8/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
3/1 3/2 3/3 3/4 3/5 3/6 3/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.66 inches
Avg Level: 6.23 in. Peak Level: 7.63 in. Min Level: 4.77 in.
Avg Velocity: 0.51 fps Peak Velocity: 0.76 fps Min Velocity: 0.23 fps
Avg Flow: 0.155 mgd Peak Flow: 0.248 mgd Min Flow: 0.056 mgd
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Basin 7A
Monitoring Site:Level, Velocity and Flow
From 3/8/2010 to 3/15/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
3/8 3/9 3/10 3/11 3/12 3/13 3/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.53 inches
Avg Level: 5.94 in. Peak Level: 7.43 in. Min Level: 4.48 in.
Avg Velocity: 0.52 fps Peak Velocity: 0.83 fps Min Velocity: 0.18 fps
Avg Flow: 0.147 mgd Peak Flow: 0.285 mgd Min Flow: 0.048 mgd
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Basin 7A
Monitoring Site:Level, Velocity and Flow
From 3/15/2010 to 3/22/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
3/15 3/16 3/17 3/18 3/19 3/20 3/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.02 inches
Avg Level: 5.45 in. Peak Level: 6.78 in. Min Level: 3.98 in.
Avg Velocity: 0.51 fps Peak Velocity: 0.74 fps Min Velocity: 0.23 fps
Avg Flow: 0.129 mgd Peak Flow: 0.228 mgd Min Flow: 0.042 mgd
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Basin 7A
Monitoring Site:Level, Velocity and Flow
From 3/22/2010 to 3/29/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
3/22 3/23 3/24 3/25 3/26 3/27 3/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.51 inches
Avg Level: 5.14 in. Peak Level: 6.42 in. Min Level: 3.86 in.
Avg Velocity: 0.54 fps Peak Velocity: 0.77 fps Min Velocity: 0.18 fps
Avg Flow: 0.125 mgd Peak Flow: 0.209 mgd Min Flow: 0.042 mgd
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Basin 7A
Monitoring Site:Level, Velocity and Flow
From 3/29/2010 to 4/5/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
3/29 3/30 3/31 4/1 4/2 4/3 4/4
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 3.11 inches
Avg Level: 5.52 in. Peak Level: 7.25 in. Min Level: 3.98 in.
Avg Velocity: 0.58 fps Peak Velocity: 0.87 fps Min Velocity: 0.25 fps
Avg Flow: 0.149 mgd Peak Flow: 0.296 mgd Min Flow: 0.055 mgd
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Basin 7A
Monitoring Site:Level, Velocity and Flow
From 4/5/2010 to 4/12/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
V e l o c i t y ( f p s )
Vel
0.00
0.10
0.20
0.30
0.40
0.50
0.60
0.70
4/5 4/6 4/7 4/8 4/9 4/10 4/11
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.14 inches
Avg Level: 5.78 in. Peak Level: 7.01 in. Min Level: 4.41 in.
Avg Velocity: 0.51 fps Peak Velocity: 0.69 fps Min Velocity: 0.23 fps
Avg Flow: 0.137 mgd Peak Flow: 0.222 mgd Min Flow: 0.06 mgd
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Monitoring Site:
Location:
Size/Type Line:
Basin 7B
El Dorado PS: West of Redemeyer Road andEl Dorado Road; in wine field near creek
-inch Sanitary Sewer Pipe
Temporary Flow Monitoring StudySanitary Sewer Collection System
Data Summary Report
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Basin 7B
Location: El Dorado PS: West of Redemeyer Road and El Dorado Road; in wine field near creek
Monitoring Site:Site Information
Report
Average Dry Weather Flow: 0.022
Peak Measured Flow: 0.091
mgd
mgd
Satellite Map
Latitude: 39.1723°
Longitude: -123.1925°
Rim Elevation: 605 feet above sea level
Street View PhotoSanitary Map
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M Average Dry Weather Flow
Average Dry Weather Flow: mgd 0.02
0.000
0.010
0.020
0.030
0.040
0.050
0.060
0 : 0 0
1 : 0 0
2 : 0 0
3 : 0 0
4 : 0 0
5 : 0 0
6 : 0 0
7 : 0 0
8 : 0 0
9 : 0 0
1 0 : 0 0
1 1 : 0 0
1 2 : 0 0
1 3 : 0 0
1 4 : 0 0
1 5 : 0 0
1 6 : 0 0
1 7 : 0 0
1 8 : 0 0
F l o w
( m g d
)
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MoI/I Summary
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.10
0 1 / 1 7
0 1 / 1 8
0 1 / 1 9
0 1 / 2 0
0 1 / 2 1
0 1 / 2 2
0 1 / 2 3
0 1 / 2 4
0 1 / 2 5
0 1 / 2 6
0 1 / 2 7
0 1 / 2 8
0 1 / 2 9
0 1 / 3 0
0 1 / 3 1
F l o w (
m g d )
Event 1 I&I ANALYSIS (Rainfall = 9.87 inches)
Inflow Infiltration on 2/2/2010 (post rain event) Total I&I
Total I/I: gallons178,000
I/I per ADWF: per in-rain0.82
Peak I/I Rate: mgd 0.06
Pk I/I:ADWF: 2.82
Infiltration Rate: 0.00
0.4%R-Value:
1,000I/I per IDM: gal/IDM/in-rai
Pk I/I:ACRE: 350
Pk I/I:IDM: 3,500
mgd
Infiltration:ADWF: 0.04
Infiltration:ACRE: 10
Infiltration:IDM: 100 gpd/IDM
gpd/acre
gpd/IDM
gpd/acre
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Monitoring Site:
Location:
Size/Type Line:
Basin 8-1
MH 120 West: Ford Road; under the US 101Highway Overpass
15-inch Sanitary Sewer Pipe
Temporary Flow Monitoring StudySanitary Sewer Collection System
Data Summary Report
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Basin 8-1
Location: MH 120 West: Ford Road; under theUS 101 Highway Overpass
Diameter: 15
Monitoring Site:Site Information
Report
Average Dry Weather Flow: 0.328
Peak Measured Flow: 1.240
mgd
mgd
Flow Sketch
Satellite Map
Latitude: 39.1675°
Longitude: -123.2056°
Rim Elevation: 619 feet above sea level
inches
Street View Photo
Sanitary Map
Plan View Photo
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0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
16-Jan
Sat
17-Jan
Sun
18-Jan
Mon
19-Jan
Tue
20-Jan
Wed
21-Jan
Thu
22-Jan
Fri
23-Jan
Sat
24-Jan
Sun
25-Jan
Mon
26-Jan
Tue
27-Jan
Wed
28-Jan
Thu
29-Jan
Fri
30-Jan
Sat
31-Jan
Sun
1-Feb
Mon
2
F l o w
( m g d )
MPeriod Flow Summary
0 .
6 0 3
0 .
7 5 1
0 .
8 1 0
0 .
7 7 4
1 .
0 5 4
1 .
0 5 9
0 .
9 7 5
0 .
9 0 5
0 .
8 5 6
0 .
7 8 2
0 .
7 4 4
0 .
7 1 4
0 .
7 0 9
0 .
7 6 6
0 .
7 6 0
0 .
7 5 7
0 .
7 3 3
0 .
7 1 3
0 .
7 1 6
0 .
6 5 0
0 .
6 4 0
0 .
6 2 4
0 .
5 9 5
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
F l o w ( M
G a l )
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
6-Feb
Sat
7-Feb
Sun
8-Feb
Mon
9-Feb
Tue
10-Feb
Wed
11-Feb
Thu
12-Feb
Fri
13-Feb
Sat
14-Feb
Sun
15-Feb
Mon
16-Feb
Tue
17-Feb
Wed
18-Feb
Thu
19-Feb
Fri
20-Feb
Sat
21-Feb
Sun
22-Feb
Mon
2
F l o w
( m g d )
0 .
3 6 6
0 .
3 4 3
0 .
7 5 3
0 .
8 2 2
0 .
8 7 3
0 .
8 5 4
0 .
8 3 2
0 .
8 2 4
0 .
7 0 4
0 .
6 8 8
0 .
5 8 2
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
0 .
4 4 3
0 .
6 8 5
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
January 16 to February 27, 2010
Total Monthly Rainfall: 15.07 inches Avg Flow: 0.72 mgd Peak Flow: 1.24 mgd Min Flow: 0.18 mgd
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0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
27-Feb
Sat
28-Feb
Sun
1-Mar
Mon
2-Mar
Tue
3-Mar
Wed
4-Mar
Thu
5-Mar
Fri
6-Mar
Sat
7-Mar
Sun
8-Mar
Mon
9-Mar
Tue
10-Mar
Wed
11-Mar
Thu
12-Mar
Fri
13-Mar
Sat
14-Mar
Sun
15-Mar
Mon
1
F l o w
( m g d )
MPeriod Flow Summary
0 .
6 1 2
0 .
6 4 7
0 .
7 2 5
0 .
7 2 4
0 .
6 9 0
0 .
6 3 2
0 .
6 2 6
0 .
6 2 5
0 .
6 1 3
0 .
6 5 0
0 .
6 4 2
0 .
6 3 4
0 .
6 2 7
0 .
6 0 4
0 .
5 9 2
0 .
5 5 3
0 .
5 5 4
0 .
5 2 4
0 .
5 3 3
0 .
5 3 0
0 .
5 1 5
0 .
5 3 1
0 .
5 6 9
0 .
5 8 4
0 .
6 0 5
0.00
0.20
0.40
0.60
0.80
1.00
1.20
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
F l o w ( M
G a l )
0.00
0.20
0.40
0.60
0.80
1.00
1.201.40
1.60
20-Mar
Sat
21-Mar
Sun
22-Mar
Mon
23-Mar
Tue
24-Mar
Wed
25-Mar
Thu
26-Mar
Fri
27-Mar
Sat
28-Mar
Sun
29-Mar
Mon
30-Mar
Tue
31-Mar
Wed
1-Apr
Thu
2-Apr
Fri
3-Apr
Sat
4-Apr
Sun
5-Apr
Mon
6
F l o w
( m g d )
0 .
6 6 6
0 .
6 5 9
0 .
6 8 4
0 .
6 6 2
0 .
6 9 6
0 .
6 7 4
0 .
5 8 9
0 .
5 9 3
0 .
5 3 7
0 .
5 3 4
0 .
6 3 1
0.00
0.20
0.40
0.60
0.80
1.00
1.20
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
0.00
0.20
0.40
0.60
0.80
1.00
1.20
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
February 27, 2010 to April 9, 2010
Total Monthly Rainfall: 7.43 inches Avg Flow: 0.62 mgd Peak Flow: 0.89 mgd Min Flow: 0.34 mgd
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M Average Dry Weather Flow
0.000
0.100
0.200
0.300
0.400
0.500
0.600
0 : 0 0
1 : 0 0
2 : 0 0
3 : 0 0
4 : 0 0
5 : 0 0
6 : 0 0
7 : 0 0
8 : 0 0
9 : 0 0
1 0 : 0 0
1 1 : 0 0
1 2 : 0 0
1 3 : 0 0
1 4 : 0 0
1 5 : 0 0
1 6 : 0 0
1 7 : 0 0
1 8 : 0 0
1 9 : 0 0
2 0 : 0 0
2 1 : 0 0
2 2 : 0 0
2 3 : 0 0
F l o w ( m
g d )
WeekdayWeekend
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MoI/I Summary
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
0 1 / 1 7
0 1 / 1 8
0 1 / 1 9
0 1 / 2 0
0 1 / 2 1
0 1 / 2 2
0 1 / 2 3
0 1 / 2 4
0 1 / 2 5
0 1 / 2 6
0 1 / 2 7
0 1 / 2 8
0 1 / 2 9
0 1 / 3 0
0 1 / 3 1
F l o w (
m g d )
Event 1 I&I ANALYSIS (Rainfall = 11.69 inches)
Inflow Infiltration on 2/2/2010 (post rain event) Total I&I
Total I/I: gallons8,211,000
I/I per ADWF: per in-rain2.14
Peak I/I Rate: mgd 0.85
Pk I/I:ADWF: 2.60
Infiltration Rate: 0.42
6.3%R-Value:
11,800I/I per IDM: gal/IDM/in-rai
Pk I/I:ACRE: 2,090
Pk I/I:IDM: 14,300
mgd
Infiltration:ADWF: 1.29
Infiltration:ACRE: 1,040
Infiltration:IDM: 7,100 gpd/IDM
gpd/acre
gpd/IDM
gpd/acre
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Basin 8-1
Monitoring Site:Level, Velocity and Flow
From 1/11/2010 to 1/18/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1/11 1/12 1/13 1/14 1/15 1/16 1/17
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.86 inches
Avg Level: 5.94 in. Peak Level: 7.24 in. Min Level: 4.68 in.
Avg Velocity: 1.21 fps Peak Velocity: 1.55 fps Min Velocity: 0.87 fps
Avg Flow: 0.35 mgd Peak Flow: 0.539 mgd Min Flow: 0.18 mgd
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Basin 8-1
Monitoring Site:Level, Velocity and Flow
From 1/18/2010 to 1/25/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1/18 1/19 1/20 1/21 1/22 1/23 1/24
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 8.25 inches
Avg Level: 8.2 in. Peak Level: 10.84 in. Min Level: 4.99 in.
Avg Velocity: 1.61 fps Peak Velocity: 2.12 fps Min Velocity: 0.92 fps
Avg Flow: 0.708 mgd Peak Flow: 0.964 mgd Min Flow: 0.217 mgd
7/27/2019 09-0747 WK Ukiah Draft FM and II Report
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Basin 8-1
Monitoring Site:Level, Velocity and Flow
From 1/25/2010 to 2/1/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1/25 1/26 1/27 1/28 1/29 1/30 1/31
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 2.52 inches
Avg Level: 8.93 in. Peak Level: 11.91 in. Min Level: 7.05 in.
Avg Velocity: 1.95 fps Peak Velocity: 2.29 fps Min Velocity: 1.69 fps
Avg Flow: 0.939 mgd Peak Flow: 1.24 mgd Min Flow: 0.712 mgd
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Basin 8-1
Monitoring Site:Level, Velocity and Flow
From 2/1/2010 to 2/8/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
2/1 2/2 2/3 2/4 2/5 2/6 2/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.12 inches
Avg Level: 8 in. Peak Level: 9.54 in. Min Level: 6.6 in.
Avg Velocity: 1.82 fps Peak Velocity: 2.2 fps Min Velocity: 1.55 fps
Avg Flow: 0.767 mgd Peak Flow: 1.018 mgd Min Flow: 0.557 mgd
7/27/2019 09-0747 WK Ukiah Draft FM and II Report
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Basin 8-1
Monitoring Site:Level, Velocity and Flow
From 2/8/2010 to 2/15/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
2/8 2/9 2/10 2/11 2/12 2/13 2/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.33 inches
Avg Level: 7.63 in. Peak Level: 8.71 in. Min Level: 6.36 in.
Avg Velocity: 1.82 fps Peak Velocity: 2.17 fps Min Velocity: 1.62 fps
Avg Flow: 0.724 mgd Peak Flow: 0.913 mgd Min Flow: 0.558 mgd
7/27/2019 09-0747 WK Ukiah Draft FM and II Report
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Basin 8-1
Monitoring Site:Level, Velocity and Flow
From 2/15/2010 to 2/22/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
2/15 2/16 2/17 2/18 2/19 2/20 2/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.01 inches
Avg Level: 7.12 in. Peak Level: 8.6 in. Min Level: 5.59 in.
Avg Velocity: 1.71 fps Peak Velocity: 2.09 fps Min Velocity: 1.43 fps
Avg Flow: 0.623 mgd Peak Flow: 0.859 mgd Min Flow: 0.417 mgd
7/27/2019 09-0747 WK Ukiah Draft FM and II Report
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Basin 8-1
Monitoring Site:Level, Velocity and Flow
From 2/22/2010 to 3/1/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
2/22 2/23 2/24 2/25 2/26 2/27 2/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 2 inches
Avg Level: 7.13 in. Peak Level: 8.68 in. Min Level: 5.49 in.
Avg Velocity: 1.69 fps Peak Velocity: 2.06 fps Min Velocity: 1.42 fps
Avg Flow: 0.616 mgd Peak Flow: 0.831 mgd Min Flow: 0.396 mgd
7/27/2019 09-0747 WK Ukiah Draft FM and II Report
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Basin 8-1
Monitoring Site:Level, Velocity and Flow
From 3/1/2010 to 3/8/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
3/1 3/2 3/3 3/4 3/5 3/6 3/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.76 inches
Avg Level: 7.43 in. Peak Level: 8.81 in. Min Level: 5.93 in.
Avg Velocity: 1.77 fps Peak Velocity: 2.19 fps Min Velocity: 1.52 fps
Avg Flow: 0.678 mgd Peak Flow: 0.886 mgd Min Flow: 0.474 mgd
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Basin 8-1
Monitoring Site:Level, Velocity and Flow
From 3/8/2010 to 3/15/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
3/8 3/9 3/10 3/11 3/12 3/13 3/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.64 inches
Avg Level: 7.18 in. Peak Level: 8.78 in. Min Level: 5.76 in.
Avg Velocity: 1.76 fps Peak Velocity: 2.16 fps Min Velocity: 1.52 fps
Avg Flow: 0.645 mgd Peak Flow: 0.871 mgd Min Flow: 0.462 mgd
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Basin 8-1
Monitoring Site:Level, Velocity and Flow
From 3/15/2010 to 3/22/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
3/15 3/16 3/17 3/18 3/19 3/20 3/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.03 inches
Avg Level: 6.77 in. Peak Level: 8.12 in. Min Level: 5.29 in.
Avg Velocity: 1.81 fps Peak Velocity: 2.23 fps Min Velocity: 1.58 fps
Avg Flow: 0.612 mgd Peak Flow: 0.768 mgd Min Flow: 0.437 mgd
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Basin 8-1
Monitoring Site:Level, Velocity and Flow
From 3/22/2010 to 3/29/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
3/22 3/23 3/24 3/25 3/26 3/27 3/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.56 inches
Avg Level: 6.36 in. Peak Level: 7.55 in. Min Level: 4.97 in.
Avg Velocity: 1.72 fps Peak Velocity: 2.26 fps Min Velocity: 1.42 fps
Avg Flow: 0.538 mgd Peak Flow: 0.759 mgd Min Flow: 0.365 mgd
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Basin 8-1
Monitoring Site:Level, Velocity and Flow
From 3/29/2010 to 4/5/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
3/29 3/30 3/31 4/1 4/2 4/3 4/4
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 3.29 inches
Avg Level: 6.72 in. Peak Level: 8.57 in. Min Level: 5.15 in.
Avg Velocity: 1.74 fps Peak Velocity: 2.17 fps Min Velocity: 1.36 fps
Avg Flow: 0.585 mgd Peak Flow: 0.795 mgd Min Flow: 0.339 mgd
7/27/2019 09-0747 WK Ukiah Draft FM and II Report
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Basin 8-1
Monitoring Site:Level, Velocity and Flow
From 4/5/2010 to 4/12/2010
0.0
2.0
4.0
6.0
8.0
10.0
12.0
14.0
16.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
0.5
1.0
1.5
2.0
2.5
3.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
4/5 4/6 4/7 4/8 4/9 4/10 4/11
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.13 inches
Avg Level: 6.93 in. Peak Level: 8.18 in. Min Level: 5.55 in.
Avg Velocity: 1.94 fps Peak Velocity: 2.33 fps Min Velocity: 1.7 fps
Avg Flow: 0.679 mgd Peak Flow: 0.842 mgd Min Flow: 0.497 mgd
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Monitoring Site:
Location:
Size/Type Line:
Basin 8-2
MH 311: Brush Street; east of Orr Street
15-inch Sanitary Sewer Pipe
Temporary Flow Monitoring StudySanitary Sewer Collection System
Data Summary Report
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Basin 8-2
Location: MH 311: Brush Street; east of OrrStreet
Diameter: 15
Monitoring Site:Site Information
Report
Average Dry Weather Flow: 0.226
Peak Measured Flow: 1.116
mgd
mgd
Flow Sketch
Satellite Map
Latitude: 39.1594°
Longitude: -123.2019°
Rim Elevation: 609 feet above sea level
inches
Street View Photo
Sanitary Map
Plan View Photo
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0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
16-Jan
Sat
17-Jan
Sun
18-Jan
Mon
19-Jan
Tue
20-Jan
Wed
21-Jan
Thu
22-Jan
Fri
23-Jan
Sat
24-Jan
Sun
25-Jan
Mon
26-Jan
Tue
27-Jan
Wed
28-Jan
Thu
29-Jan
Fri
30-Jan
Sat
31-Jan
Sun
1-Feb
Mon
2
F l o w
( m g d )
MPeriod Flow Summary
0 .
5 8 0
0 .
6 6 4
0 .
5 5 7
0 .
4 2 1
0 .
7 6 8
0 .
6 3 1
0 .
5 4 3
0 .
4 7 3
0 .
4 6 0
0 .
4 1 4
0 .
3 9 9
0 .
3 8 6
0 .
4 7 3
0 .
5 1 7
0 .
4 5 3
0 .
4 5 3
0 .
4 1 0
0 .
3 8 9
0 .
3 5 4
0 .
3 3 5
0 .
3 0 7
0 .
3 0 1
0 .
2 9 6
0.000.100.200.300.400.500.600.700.80
0.90
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
F l o w ( M
G a l )
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
6-Feb
Sat
7-Feb
Sun
8-Feb
Mon
9-Feb
Tue
10-Feb
Wed
11-Feb
Thu
12-Feb
Fri
13-Feb
Sat
14-Feb
Sun
15-Feb
Mon
16-Feb
Tue
17-Feb
Wed
18-Feb
Thu
19-Feb
Fri
20-Feb
Sat
21-Feb
Sun
22-Feb
Mon
2
F l o w
( m g d )
0 .
2 3 2
0 .
2 6 6
0 .
3 7 7
0 .
4 4 1
0 .
4 3 4
0 .
3 9 7
0 .
5 2 9
0 .
4 6 8
0 .
3 2 0
0 .
2 9 1
0 .
2 7 9
0.000.100.200.300.400.500.600.700.80
0.90
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
0 .
4 7 3
0 .
3 2 3
0.000.100.200.300.400.500.600.700.80
0.90
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
January 16 to February 27, 2010
Total Monthly Rainfall: 15.29 inches Avg Flow: 0.42 mgd Peak Flow: 1.12 mgd Min Flow: 0.07 mgd
7/27/2019 09-0747 WK Ukiah Draft FM and II Report
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0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
27-Feb
Sat
28-Feb
Sun
1-Mar
Mon
2-Mar
Tue
3-Mar
Wed
4-Mar
Thu
5-Mar
Fri
6-Mar
Sat
7-Mar
Sun
8-Mar
Mon
9-Mar
Tue
10-Mar
Wed
11-Mar
Thu
12-Mar
Fri
13-Mar
Sat
14-Mar
Sun
15-Mar
Mon
1
F l o w
( m g d )
MPeriod Flow Summary
0 .
3 1 7
0 .
3 9 0
0 .
4 9 7
0 .
4 0 4
0 .
3 7 4
0 .
3 1 3
0 .
3 0 3
0 .
3 0 8
0 .
2 9 0
0 .
4 0 1
0 .
3 0 7
0 .
2 7 9
0 .
2 7 6
0 .
2 7 8
0 .
2 6 1
0 .
2 6 2
0 .
2 6 7
0 .
2 8 5
0 .
3 0 6
0 .
2 8 1
0 .
2 7 2
0 .
3 3 4
0 .
3 5 7
0 .
2 8 8
0 .
3 3 1
0.000.100.200.300.400.500.600.700.80
0.90
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
F l o w ( M
G a l )
0.00
0.20
0.40
0.60
0.80
1.00
1.201.40
1.60
20-Mar
Sat
21-Mar
Sun
22-Mar
Mon
23-Mar
Tue
24-Mar
Wed
25-Mar
Thu
26-Mar
Fri
27-Mar
Sat
28-Mar
Sun
29-Mar
Mon
30-Mar
Tue
31-Mar
Wed
1-Apr
Thu
2-Apr
Fri
3-Apr
Sat
4-Apr
Sun
5-Apr
Mon
6
F l o w
( m g d )
0 .
3 2 3
0 .
2 9 1
0 .
3 2 7
0 .
3 0 3
0 .
3 5 2
0 .
2 9 6
0 .
2 5 0
0 .
2 3 7
0 .
2 3 0
0 .
2 2 1
0 .
2 7 8
0.000.100.200.300.400.500.600.700.80
0.90
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
0.000.100.200.300.400.500.600.700.80
0.90
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
February 27, 2010 to April 9, 2010
Total Monthly Rainfall: 7.61 inches Avg Flow: 0.31 mgd Peak Flow: 0.76 mgd Min Flow: 0.09 mgd
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M Average Dry Weather Flow
0.000
0.050
0.100
0.150
0.200
0.250
0.300
0.350
0.400
0 : 0 0
1 : 0 0
2 : 0 0
3 : 0 0
4 : 0 0
5 : 0 0
6 : 0 0
7 : 0 0
8 : 0 0
9 : 0 0
1 0 : 0 0
1 1 : 0 0
1 2 : 0 0
1 3 : 0 0
1 4 : 0 0
1 5 : 0 0
1 6 : 0 0
1 7 : 0 0
1 8 : 0 0
1 9 : 0 0
2 0 : 0 0
2 1 : 0 0
2 2 : 0 0
2 3 : 0 0
F l o w ( m
g d )
WeekdayWeekend
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MoI/I Summary
0.00
0.20
0.40
0.60
0.80
1.00
1.20
0 1 / 1 7
0 1 / 1 8
0 1 / 1 9
0 1 / 2 0
0 1 / 2 1
0 1 / 2 2
0 1 / 2 3
0 1 / 2 4
0 1 / 2 5
0 1 / 2 6
0 1 / 2 7
0 1 / 2 8
0 1 / 2 9
0 1 / 3 0
0 1 / 3 1
F l o w (
m g d )
Event 1 I&I ANALYSIS (Rainfall = 11.93 inches)
Inflow Infiltration on 2/2/2010 (post rain event) Total I&I
Total I/I: gallons4,624,000
I/I per ADWF: per in-rain1.71
Peak I/I Rate: mgd 0.80
Pk I/I:ADWF: 3.55
Infiltration Rate: 0.16
5.1%R-Value:
9,400I/I per IDM: gal/IDM/in-rai
Pk I/I:ACRE: 2,840
Pk I/I:IDM: 19,400
mgd
Infiltration:ADWF: 0.71
Infiltration:ACRE: 570
Infiltration:IDM: 3,900 gpd/IDM
gpd/acre
gpd/IDM
gpd/acre
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Basin 8-2
Monitoring Site:Level, Velocity and Flow
From 1/11/2010 to 1/18/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1/11 1/12 1/13 1/14 1/15 1/16 1/17
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.88 inches
Avg Level: 2.8 in. Peak Level: 4.34 in. Min Level: 1.76 in.
Avg Velocity: 2.3 fps Peak Velocity: 3.75 fps Min Velocity: 1.38 fps
Avg Flow: 0.255 mgd Peak Flow: 0.714 mgd Min Flow: 0.072 mgd
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Basin 8-2
Monitoring Site:Level, Velocity and Flow
From 1/18/2010 to 1/25/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1/18 1/19 1/20 1/21 1/22 1/23 1/24
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 8.41 inches
Avg Level: 3.66 in. Peak Level: 5.42 in. Min Level: 2.16 in.
Avg Velocity: 3.2 fps Peak Velocity: 4.37 fps Min Velocity: 1.66 fps
Avg Flow: 0.502 mgd Peak Flow: 1.116 mgd Min Flow: 0.12 mgd
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Basin 8-2
Monitoring Site:Level, Velocity and Flow
From 1/25/2010 to 2/1/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
1/25 1/26 1/27 1/28 1/29 1/30 1/31
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 2.58 inches
Avg Level: 3.81 in. Peak Level: 5.22 in. Min Level: 2.83 in.
Avg Velocity: 3.24 fps Peak Velocity: 4.22 fps Min Velocity: 1.91 fps
Avg Flow: 0.53 mgd Peak Flow: 1.036 mgd Min Flow: 0.2 mgd
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Basin 8-2
Monitoring Site:Level, Velocity and Flow
From 2/1/2010 to 2/8/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
2/1 2/2 2/3 2/4 2/5 2/6 2/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.08 inches
Avg Level: 3.63 in. Peak Level: 4.79 in. Min Level: 2.73 in.
Avg Velocity: 2.99 fps Peak Velocity: 3.92 fps Min Velocity: 1.69 fps
Avg Flow: 0.455 mgd Peak Flow: 0.817 mgd Min Flow: 0.173 mgd
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Basin 8-2
Monitoring Site:Level, Velocity and Flow
From 2/8/2010 to 2/15/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
2/8 2/9 2/10 2/11 2/12 2/13 2/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.32 inches
Avg Level: 3.35 in. Peak Level: 4.29 in. Min Level: 2.4 in.
Avg Velocity: 2.8 fps Peak Velocity: 3.71 fps Min Velocity: 1.68 fps
Avg Flow: 0.382 mgd Peak Flow: 0.68 mgd Min Flow: 0.156 mgd
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Basin 8-2
Monitoring Site:Level, Velocity and Flow
From 2/15/2010 to 2/22/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
2/15 2/16 2/17 2/18 2/19 2/20 2/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.01 inches
Avg Level: 2.98 in. Peak Level: 3.87 in. Min Level: 2.19 in.
Avg Velocity: 2.59 fps Peak Velocity: 3.56 fps Min Velocity: 1.71 fps
Avg Flow: 0.3 mgd Peak Flow: 0.559 mgd Min Flow: 0.123 mgd
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Basin 8-2
Monitoring Site:Level, Velocity and Flow
From 2/22/2010 to 3/1/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
2/22 2/23 2/24 2/25 2/26 2/27 2/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 2.04 inches
Avg Level: 2.99 in. Peak Level: 4.55 in. Min Level: 2.02 in.
Avg Velocity: 2.76 fps Peak Velocity: 4.09 fps Min Velocity: 1.51 fps
Avg Flow: 0.326 mgd Peak Flow: 0.799 mgd Min Flow: 0.099 mgd
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Basin 8-2
Monitoring Site:Level, Velocity and Flow
From 3/1/2010 to 3/8/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
3/1 3/2 3/3 3/4 3/5 3/6 3/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.8 inches
Avg Level: 3.1 in. Peak Level: 4.11 in. Min Level: 2.19 in.
Avg Velocity: 3.04 fps Peak Velocity: 3.97 fps Min Velocity: 1.64 fps
Avg Flow: 0.373 mgd Peak Flow: 0.688 mgd Min Flow: 0.118 mgd
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Basin 8-2
Monitoring Site:Level, Velocity and Flow
From 3/8/2010 to 3/15/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
3/8 3/9 3/10 3/11 3/12 3/13 3/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.68 inches
Avg Level: 2.93 in. Peak Level: 4.39 in. Min Level: 1.96 in.
Avg Velocity: 2.83 fps Peak Velocity: 4.01 fps Min Velocity: 1.69 fps
Avg Flow: 0.323 mgd Peak Flow: 0.759 mgd Min Flow: 0.107 mgd
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Basin 8-2
Monitoring Site:Level, Velocity and Flow
From 3/15/2010 to 3/22/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
3/15 3/16 3/17 3/18 3/19 3/20 3/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.03 inches
Avg Level: 2.72 in. Peak Level: 3.7 in. Min Level: 1.89 in.
Avg Velocity: 2.64 fps Peak Velocity: 3.78 fps Min Velocity: 1.61 fps
Avg Flow: 0.27 mgd Peak Flow: 0.532 mgd Min Flow: 0.097 mgd
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Basin 8-2
Monitoring Site:Level, Velocity and Flow
From 3/22/2010 to 3/29/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
3/22 3/23 3/24 3/25 3/26 3/27 3/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.58 inches
Avg Level: 2.68 in. Peak Level: 3.98 in. Min Level: 1.8 in.
Avg Velocity: 2.62 fps Peak Velocity: 3.8 fps Min Velocity: 1.6 fps
Avg Flow: 0.265 mgd Peak Flow: 0.642 mgd Min Flow: 0.088 mgd
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Basin 8-2
Monitoring Site:Level, Velocity and Flow
From 3/29/2010 to 4/5/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
3/29 3/30 3/31 4/1 4/2 4/3 4/4
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 3.36 inches
Avg Level: 2.9 in. Peak Level: 4.1 in. Min Level: 1.89 in.
Avg Velocity: 2.81 fps Peak Velocity: 4.09 fps Min Velocity: 1.47 fps
Avg Flow: 0.317 mgd Peak Flow: 0.696 mgd Min Flow: 0.097 mgd
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Basin 8-2
Monitoring Site:Level, Velocity and Flow
From 4/5/2010 to 4/12/2010
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
10.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
0.20
0.40
0.60
0.80
1.00
1.20
1.40
1.60
4/5 4/6 4/7 4/8 4/9 4/10 4/11
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.13 inches
Avg Level: 2.81 in. Peak Level: 3.62 in. Min Level: 1.98 in.
Avg Velocity: 2.83 fps Peak Velocity: 3.75 fps Min Velocity: 1.63 fps
Avg Flow: 0.302 mgd Peak Flow: 0.547 mgd Min Flow: 0.107 mgd
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Monitoring Site:
Location:
Size/Type Line:
System less Basins 1B, 2
MH 1035: Airport Road
36-inch Sanitary Sewer Pipe
Temporary Flow Monitoring StudySanitary Sewer Collection System
Data Summary Report
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System less Basins 1B, 2
Location: MH 1035: Airport Road
Diameter: 36
Monitoring Site:Site Information
Report
Average Dry Weather Flow: 2.122
Peak Measured Flow: 12.287
mgd
mgd
Flow Sketch
Satellite Map
Latitude: 39.1254°
Longitude: -123.1973°
Rim Elevation: 581 feet above sea level
inches
Street View Photo
Sanitary Map
Plan View Photo
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0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
16-Jan
Sat
17-Jan
Sun
18-Jan
Mon
19-Jan
Tue
20-Jan
Wed
21-Jan
Thu
22-Jan
Fri
23-Jan
Sat
24-Jan
Sun
25-Jan
Mon
26-Jan
Tue
27-Jan
Wed
28-Jan
Thu
29-Jan
Fri
30-Jan
Sat
31-Jan
Sun
1-Feb
Mon
F l o w
( m g d )
Syste
MPeriod Flow Summary
5 .
5 3 4
7 .
0 4 8
7 .
7 0 3
7 .
0 3 6
1 0 .
0 8 7
1 0 .
0 5 2
8 .
5 3 3
7 .
6 4 5
7 .
1 0 1
6 .
1 6 4
5 .
9 5 0
5 .
7 1 8
6 .
0 4 5
6 .
9 7 8
6 .
2 4 2
6 .
1 8 8
5 .
9 5 0
5 .
5 7 6
5 .
4 7 8
4 .
9 0 1
4 .
7 8 1
4 .
6 2 8
4 .
4 9 7
0.00
2.00
4.00
6.00
8.00
10.00
12.00
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
F l o w ( M
G a l )
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
6-Feb
Sat
7-Feb
Sun
8-Feb
Mon
9-Feb
Tue
10-Feb
Wed
11-Feb
Thu
12-Feb
Fri
13-Feb
Sat
14-Feb
Sun
15-Feb
Mon
16-Feb
Tue
17-Feb
Wed
18-Feb
Thu
19-Feb
Fri
20-Feb
Sat
21-Feb
Sun
22-Feb
Mon
F l o w
( m g d )
2 .
7 4 5
2 .
4 0 7
6 .
6 0 4
6 .
7 6 1
6 .
8 5 2
6 .
4 5 2
7 .
0 9 5
6 .
8 7 3
5 .
2 6 2
5 .
1 4 2
4 .
4 2 2
0.00
2.00
4.00
6.00
8.00
10.00
12.00
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
3 .
8 9 6
5 .
0 6 5
0.00
2.00
4.00
6.00
8.00
10.00
12.00
1 / 1 6
1 / 1 7
1 / 1 8
1 / 1 9
1 / 2 0
1 / 2 1
1 / 2 2
1 / 2 3
1 / 2 4
1 / 2 5
1 / 2 6
1 / 2 7
1 / 2 8
1 / 2 9
1 / 3 0
1 / 3 1
2 / 1
2 / 2
2 / 3
2 / 4
2 / 5
2 / 6
2 / 7
2 / 8
2 / 9
2 / 1 0
2 / 1 1
2 / 1 2
2 / 1 3
2 / 1 4
2 / 1 5
2 / 1 6
2 / 1 7
2 / 1 8
2 / 1 9
2 / 2 0
January 16 to February 27, 2010
Total Monthly Rainfall: 15.15 inches Avg Flow: 5.91 mgd Peak Flow: 12.29 mgd Min Flow: 1.14 mgd
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0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
27-Feb
Sat
28-Feb
Sun
1-Mar
Mon
2-Mar
Tue
3-Mar
Wed
4-Mar
Thu
5-Mar
Fri
6-Mar
Sat
7-Mar
Sun
8-Mar
Mon
9-Mar
Tue
10-Mar
Wed
11-Mar
Thu
12-Mar
Fri
13-Mar
Sat
14-Mar
Sun
15-Mar
Mon
F l o w
( m g d )
Syste
MPeriod Flow Summary
4 .
9 0 4
5 .
4 8 8
6 .
7 1 8
6 .
5 3 7
5 .
9 4 1
5 .
2 5 3
5 .
0 4 5
5 .
1 0 5
4 .
8 4 4
5 .
6 4 2
5 .
3 8 2
5 .
0 4 5
4 .
8 5 2
4 .
7 4 0
4 .
5 9 2
4 .
2 9 9
4 .
1 6 4
4 .
0 9 3
4 .
1 0 0
4 .
0 7 7
3 .
9 5 1
4 .
5 1 0
5 .
2 3 5
5 .
1 4 5
5 .
3 2 1
0.00
2.00
4.00
6.00
8.00
10.00
12.00
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
F l o w ( M
G a l )
0.00
2.00
4.00
6.00
8.00
10.00
12.0014.00
16.00
20-Mar
Sat
21-Mar
Sun
22-Mar
Mon
23-Mar
Tue
24-Mar
Wed
25-Mar
Thu
26-Mar
Fri
27-Mar
Sat
28-Mar
Sun
29-Mar
Mon
30-Mar
Tue
31-Mar
Wed
1-Apr
Thu
2-Apr
Fri
3-Apr
Sat
4-Apr
Sun
5-Apr
Mon
F l o w
( m g d )
5 .
5 2 3
5 .
1 9 5
5 .
7 1 0
5 .
4 7 9
6 .
0 3 4
5 .
5 6 2
4 .
3 7 8
4 .
3 1 4
3 .
9 1 9
3 .
9 1 5
5 .
4 1 7
0.00
2.00
4.00
6.00
8.00
10.00
12.00
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
0.00
2.00
4.00
6.00
8.00
10.00
12.00
2 / 2 7
2 / 2 8
3 / 1
3 / 2
3 / 3
3 / 4
3 / 5
3 / 6
3 / 7
3 / 8
3 / 9
3 / 1 0
3 / 1 1
3 / 1 2
3 / 1 3
3 / 1 4
3 / 1 5
3 / 1 6
3 / 1 7
3 / 1 8
3 / 1 9
3 / 2 0
3 / 2 1
3 / 2 2
3 / 2 3
3 / 2 4
3 / 2 5
3 / 2 6
3 / 2 7
3 / 2 8
3 / 2 9
3 / 3 0
3 / 3 1
4 / 1
4 / 2
4 / 3
February 27, 2010 to April 9, 2010
Total Monthly Rainfall: 7.27 inches Avg Flow: 5.12 mgd Peak Flow: 7.82 mgd Min Flow: 2.83 mgd
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Syst
M Average Dry Weather Flow
0.000
0.500
1.000
1.500
2.000
2.500
3.000
3.500
0 : 0 0
1 : 0 0
2 : 0 0
3 : 0 0
4 : 0 0
5 : 0 0
6 : 0 0
7 : 0 0
8 : 0 0
9 : 0 0
1 0 : 0 0
1 1 : 0 0
1 2 : 0 0
1 3 : 0 0
1 4 : 0 0
1 5 : 0 0
1 6 : 0 0
1 7 : 0 0
1 8 : 0 0
1 9 : 0 0
2 0 : 0 0
2 1 : 0 0
2 2 : 0 0
2 3 : 0 0
F l o w ( m
g d )
WeekdayWeekend
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MoI/I Summary
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
0 1 / 1 7
0 1 / 1 8
0 1 / 1 9
0 1 / 2 0
0 1 / 2 1
0 1 / 2 2
0 1 / 2 3
0 1 / 2 4
0 1 / 2 5
0 1 / 2 6
0 1 / 2 7
0 1 / 2 8
0 1 / 2 9
0 1 / 3 0
0 1 / 3 1
F l o w (
m g d )
Event 1 I&I ANALYSIS (Rainfall = 11.73 inches)
Inflow Infiltration on 2/2/2010 (post rain event) Total I&I
Total I/I: gallons83,360,000
I/I per ADWF: per in-rain3.35
Peak I/I Rate: mgd 9.88
Pk I/I:ADWF: 4.66
Infiltration Rate: 3.85
5.3%R-Value:
9,700I/I per IDM: gal/IDM/in-rai
Pk I/I:ACRE: 2,020
Pk I/I:IDM: 13,500
mgd
Infiltration:ADWF: 1.81
Infiltration:ACRE: 790
Infiltration:IDM: 5,300 gpd/IDM
gpd/acre
gpd/IDM
gpd/acre
System
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System less Basins 1B, 2
Monitoring Site:Level, Velocity and Flow
From 1/11/2010 to 1/18/2010
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
1/11 1/12 1/13 1/14 1/15 1/16 1/17
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.84 inches
Avg Level: 10.31 in. Peak Level: 12.43 in. Min Level: 7.66 in.
Avg Velocity: 2.28 fps Peak Velocity: 2.78 fps Min Velocity: 1.56 fps
Avg Flow: 2.529 mgd Peak Flow: 3.883 mgd Min Flow: 1.138 mgd
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System less Basins 1B, 2
Monitoring Site:Level, Velocity and Flow
From 1/18/2010 to 1/25/2010
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
1/18 1/19 1/20 1/21 1/22 1/23 1/24
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 8.3 inches
Avg Level: 15.5 in. Peak Level: 19.68 in. Min Level: 9.09 in.
Avg Velocity: 3.32 fps Peak Velocity: 3.82 fps Min Velocity: 1.88 fps
Avg Flow: 6.369 mgd Peak Flow: 9.327 mgd Min Flow: 1.701 mgd
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System less Basins 1B, 2
Monitoring Site:Level, Velocity and Flow
From 1/25/2010 to 2/1/2010
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
1/25 1/26 1/27 1/28 1/29 1/30 1/31
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 2.53 inches
Avg Level: 18 in. Peak Level: 23.93 in. Min Level: 14.6 in.
Avg Velocity: 3.53 fps Peak Velocity: 3.89 fps Min Velocity: 3.09 fps
Avg Flow: 8.103 mgd Peak Flow: 12.287 mgd Min Flow: 5.411 mgd
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System less Basins 1B, 2
Monitoring Site:Level, Velocity and Flow
From 2/1/2010 to 2/8/2010
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
2/1 2/2 2/3 2/4 2/5 2/6 2/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.19 inches
Avg Level: 15.66 in. Peak Level: 18.47 in. Min Level: 13.13 in.
Avg Velocity: 3.34 fps Peak Velocity: 3.71 fps Min Velocity: 2.89 fps
Avg Flow: 6.403 mgd Peak Flow: 8.363 mgd Min Flow: 4.419 mgd
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System less Basins 1B, 2
Monitoring Site:Level, Velocity and Flow
From 2/8/2010 to 2/15/2010
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
2/8 2/9 2/10 2/11 2/12 2/13 2/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.34 inches
Avg Level: 14.8 in. Peak Level: 16.35 in. Min Level: 13.06 in.
Avg Velocity: 3.2 fps Peak Velocity: 3.53 fps Min Velocity: 2.71 fps
Avg Flow: 5.691 mgd Peak Flow: 7.011 mgd Min Flow: 4.07 mgd
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System less Basins 1B, 2
Monitoring Site:Level, Velocity and Flow
From 2/15/2010 to 2/22/2010
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
2/15 2/16 2/17 2/18 2/19 2/20 2/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.01 inches
Avg Level: 13.44 in. Peak Level: 15.06 in. Min Level: 11.63 in.
Avg Velocity: 2.98 fps Peak Velocity: 3.41 fps Min Velocity: 2.54 fps
Avg Flow: 4.663 mgd Peak Flow: 6.181 mgd Min Flow: 3.289 mgd
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System less Basins 1B, 2
Monitoring Site:Level, Velocity and Flow
From 2/22/2010 to 3/1/2010
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
2/22 2/23 2/24 2/25 2/26 2/27 2/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.96 inches
Avg Level: 13.69 in. Peak Level: 16.78 in. Min Level: 11.24 in.
Avg Velocity: 3.01 fps Peak Velocity: 3.56 fps Min Velocity: 2.45 fps
Avg Flow: 4.847 mgd Peak Flow: 7.307 mgd Min Flow: 3.018 mgd
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System less Basins 1B, 2
Monitoring Site:Level, Velocity and Flow
From 3/1/2010 to 3/8/2010
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
3/1 3/2 3/3 3/4 3/5 3/6 3/7
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.72 inches
Avg Level: 14.99 in. Peak Level: 17.45 in. Min Level: 12.17 in.
Avg Velocity: 3.22 fps Peak Velocity: 3.63 fps Min Velocity: 2.64 fps
Avg Flow: 5.825 mgd Peak Flow: 7.786 mgd Min Flow: 3.625 mgd
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System less Basins 1B, 2
Monitoring Site:Level, Velocity and Flow
From 3/8/2010 to 3/15/2010
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
3/8 3/9 3/10 3/11 3/12 3/13 3/14
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 1.61 inches
Avg Level: 14.44 in. Peak Level: 16.84 in. Min Level: 12.07 in.
Avg Velocity: 3.11 fps Peak Velocity: 3.52 fps Min Velocity: 2.6 fps
Avg Flow: 5.355 mgd Peak Flow: 7.328 mgd Min Flow: 3.582 mgd
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System less Basins 1B, 2
Monitoring Site:Level, Velocity and Flow
From 3/15/2010 to 3/22/2010
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
3/15 3/16 3/17 3/18 3/19 3/20 3/21
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.02 inches
Avg Level: 13.6 in. Peak Level: 15.21 in. Min Level: 11.54 in.
Avg Velocity: 3 fps Peak Velocity: 3.5 fps Min Velocity: 2.53 fps
Avg Flow: 4.758 mgd Peak Flow: 6.171 mgd Min Flow: 3.212 mgd
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System less Basins 1B, 2
Monitoring Site:Level, Velocity and Flow
From 3/22/2010 to 3/29/2010
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
3/22 3/23 3/24 3/25 3/26 3/27 3/28
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.53 inches
Avg Level: 12.65 in. Peak Level: 13.73 in. Min Level: 10.98 in.
Avg Velocity: 2.83 fps Peak Velocity: 3.19 fps Min Velocity: 2.38 fps
Avg Flow: 4.081 mgd Peak Flow: 5.021 mgd Min Flow: 2.874 mgd
7/27/2019 09-0747 WK Ukiah Draft FM and II Report
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System less Basins 1B, 2
Monitoring Site:Level, Velocity and Flow
From 3/29/2010 to 4/5/2010
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
3/29 3/30 3/31 4/1 4/2 4/3 4/4
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 3.22 inches
Avg Level: 13.99 in. Peak Level: 17.45 in. Min Level: 10.69 in.
Avg Velocity: 3.05 fps Peak Velocity: 3.58 fps Min Velocity: 2.45 fps
Avg Flow: 5.062 mgd Peak Flow: 7.824 mgd Min Flow: 2.826 mgd
7/27/2019 09-0747 WK Ukiah Draft FM and II Report
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System less Basins 1B, 2
Monitoring Site:Level, Velocity and Flow
From 4/5/2010 to 4/12/2010
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
Mon Tue Wed Thu Fri Sat Sun
L e v e l ( i n )
Lev
0.0
1.0
2.0
3.0
4.0
5.0
6.0
V e l o c i t y ( f p s )
Vel
0.00
2.00
4.00
6.00
8.00
10.00
12.00
14.00
16.00
4/5 4/6 4/7 4/8 4/9 4/10 4/11
F l o w ( m
g d )
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
R a i n ( i
n / h r )
Rain Flow BLFlowTotal Weekly Rainfall: 0.13 inches
Avg Level: 14.99 in. Peak Level: 17.03 in. Min Level: 12.86 in.
Avg Velocity: 3.22 fps Peak Velocity: 3.56 fps Min Velocity: 2.78 fps
Avg Flow: 5.82 mgd Peak Flow: 7.446 mgd Min Flow: 4.095 mgd
7/27/2019 09-0747 WK Ukiah Draft FM and II Report
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Basins 7A, 8-1Basins 7A, 8-1
Basin 7BBasin 7B
RG East
Basin 5Basin 5
Basin 6ABasin 6A
Basin 8-2Basin 8-2
RG West