floyds fork bacteria tmdl
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Floyds Fork Bacteria TMDL. Andrea M. Fredenburg Kentucky Division of Water TMDL Section February 19, 2013. Agenda. Review KY’s bacteria criteria Show sample site locations and data summary Show bacteria impaired segments Explain Load Duration Curve Review TMDL 101. - PowerPoint PPT PresentationTRANSCRIPT
Floyds Fork Bacteria TMDL
Andrea M. FredenburgKentucky Division of Water
TMDL SectionFebruary 19, 2013
Agenda
• Review KY’s bacteria criteria
• Show sample site locations and data summary
• Show bacteria impaired segments
• Explain Load Duration Curve
• Review TMDL 101
KY’s Bacteria Criteria
Summer PCR Limit (May 1 - Oct. 31) SCR Limit (year round)
BacteriaGeometric Mean (colonies/100 ml)
Maximum (colonies/100 ml)
Geometric Mean (colonies/100 ml)
Maximum (colonies/100 ml)
Fecal coliform
200 (from 5 samples collected within
30 days)
400 (number not to be exceeded in more than 20% of the
samples)
1000 (from 5 samples
collected within 30 days)
2000 (number not to be exceeded in more than 20% of the
samples)
E. coli
130 (from 5 samples collected within
30 days)
240 (number not to be exceeded in more than 20% of the
samples)
No criterion (this does not mean that any number is safe; rather that KY regulations do not tell the safe limit )
No criterion (this does not mean that any number is safe; rather that KY
regulations do not tell the safe limit )
Currys Fork WBP Sites
Station Name #
% Exceeding WQC (400 col/100 ml)
Min (col/100
ml)
Max (col/100
ml)
Ave (col/100
ml) CF1 24 54.2 50 9900 1478CF2 24 70.8 60 25000 3314CF3 24 66.7 200 88000 4987NC1 30 76.7 100 22000 3567NC1a 18 72.2 60 21000 3329NC1b 10 60 50 6800 1828NC2 17 47.1 18 5000 890SC1 27 85.2 110 87000 6381SC2 28 57.1 50 6300 2049TB1 20 65 30 13000 1788
TB1a 12 91.7 200 5900 1777
Fecal Coliform 2007 and 2009
MSD Sample Sites
Station Name #
% Exceeding WQC (400 col/100 ml)
Min (col/100
ml)
Max (col/100
ml)
Ave (col/100
ml)
ECCCC001 345 23.5 3 58400 788EFFCR001 346 28.6 3 15000 769EFFCR002 343 37.9 2 29400 1264EFFFF002 319 30.7 3 31350 1041EFFFF003 346 28.6 3 64800 859EFFFF001 343 30.6 3 33429 2859EPRPR001 336 36 3 45600 1334
Fecal Coliform 2000-2010
KDOW Sample Sites
Station Name #
% Exceeding WQC (400 col/100 ml)
Min (col/100
ml)
Max (col/100
ml) Ave
(col/100 ml) 1 1 0 10 10 N/A 2 1 100 1500 1500 N/A 3 1 100 500 500 N/A 4 1 100 520 520 N/A 5 1 100 3000 3000 N/A 6 1 100 3000 3000 N/A 7 1 0 200 200 N/A 8 1 0 300 300 N/A 9 7 0 40 310 176
PRI100 33 30.3 10 12000 806
SRW012 6 33.3 120 3400 987
Station Name #
% Exceeding WQC (240 col/100 ml)
Min (col/100
ml)
Max (col/100
ml) Ave
(col/100 ml) PRI100 18 38.9 39.9 3100 830
Fecal Coliform 1999, 1998-2004, 2004E. coli 2006-2009
Bullitt County WBP Sites
Station Name #
% Exceeding WQC (400 col/100 ml)
Min (col/100
ml)
Max (col/100
ml) Ave
(col/100 ml) BB-1 3 66.7 320 60000 20267BB-2 3 66.7 20 60000 21773BL-1 3 100 600 3000 1500BL-2 3 33.3 210 2100 900BR-1 3 100 2100 60000 23700BR-2 3 100 600 1700 1233CC-1 3 100 500 560 520CC-2 3 66.7 230 500 410CR-1 3 100 1400 60000 21300FF-1 7 71.4 130 7900 2700FF-2 7 57.1 100 6000 1393TB-1 3 100 23000 60000 43000TB-2 3 100 800 60000 20567WR-1 3 100 600 23000 9200WR-2 3 100 600 60000 20667
Fecal Coliform 2005-2006
USGS Sample Sites
Station Name #
% Exceeding WQC (240 col/100 ml)
Min (col/100
ml)
Max (col/100
ml)
Ave (col/100
ml)AR-1 6 100 390 21000 7022
CANE-1 12 50 20 36000 4187CF-1 20 70 92 20000 2295FF-1 17 41.2 16 8300 925FF-2 18 72.2 20 52000 5058FF-3 19 52.6 4 48000 3178FF-4 21 28.6 60 14000 1008FF-7 22 31.8 10 31000 1816LR-1 13 61.5 8 1100 403LR-2 16 62.5 60 8900 1650
NFCF-1 20 90 92 14000 1867PL-1 17 70.6 24 17000 1997PL-2 20 70 80 20000 2277PL-3 17 47.1 36 9000 854
SFCF-1 15 33.3 4 3300 449SFCF-2 19 63.2 4 22000 2760SLR-1 18 55.6 10 9900 1693
E. coli 2007-2008
USGS Sample Sites
Station Name #
% Exceeding WQC (240 col/100 ml)
Min (col/100
ml)
Max (col/100
ml)
Ave (col/100
ml)CC-2 22 50 54 9500 1023CR-1 21 76.2 96 23000 2533CR-2 20 45 40 12000 1084CR-3 24 54.2 60 18000 2202FF-5 21 19 4 19000 1149FF-6 21 19 12 19000 1239FF-8 21 42.9 84 21000 1938
JTOWNSTP 18 22.2 8 13000 978PR-1 21 57.1 100 14000 2522
E. coli 2007-2008
Floyds Fork Bacteria ImpairmentsWaterbody Name Pollutant County Impaired Use
Ashers Run 0.0 to 4.8 E. coli Oldham PCRAshers Run 0.0 to 4.8 Fecal coliform Oldham PCRCane Run 0.0 to 7.3 E. coli Jefferson PCR
Cedar Creek 4.3 to 11.1 E. coli Jefferson PCRCedar Creek 4.3 to 11.1 Fecal coliform Jefferson PCR
Chenoweth Run 0.0 to 5.25 E. coli Jefferson PCRChenoweth Run 0.0 to 5.25 Fecal coliform Jefferson PCRChenoweth Run 0.0 to 5.25 Fecal coliform Jefferson SCRChenoweth Run 5.25 to 9.2 E. coli Jefferson PCRChenoweth Run 5.25 to 9.2 Fecal coliform Jefferson PCRChenoweth Run 5.25 to 9.2 Fecal coliform Jefferson SCR
Currys Fork 0.0 to 4.8 E. coli Oldham PCRFloyds Fork 0.0 to 11.7 E. coli Bullitt PCR
Floyds Fork 11.7 to 24.2 Fecal coliform Jefferson PCRFloyds Fork 24.2 to 34.1 E. coli Jefferson PCRFloyds Fork 34.1 to 61.9 E. coli Shelby PCRFloyds Fork 34.1 to 61.9 Fecal coliform Shelby SCR
Long Run 0.0 to 9.9 E. coli Jefferson PCRNorth Fork Currys Fork 0.0 to 6.0 E. coli Oldham PCR
Pennsylvania Run 0.0 to 3.3 E. coli Jefferson PCRPennsylvania Run 0.0 to 3.3 Fecal coliform Jefferson SCR
Pope Lick 0.0 to 2.1 E. coli Jefferson PCRPope Lick Creek 2.1 to 5.5 E. coli Jefferson PCR
South Fork Currys Fork 0.0 to 6.1 E. coli Oldham PCRSouth Long Run 0.0 to 3.35 E. coli Jefferson PCR
UT of South Fork Currys Fork 0.0 to 1.8 E. coli Oldham PCR
Floyds Fork Bacteria Impairments
Floyds Fork Bacteria Impairments
TMDL and Allocations
Allocations:TMDL = ∑WLA + ∑LA + MOS
TMDL Calculation:TMDL (allowable # per day) = Allowable Concentration (allowable # per 100 ml) x Flow (in cubic feet per second) x Conversion Factor (24,465,758.4 per day)
Load Duration Curve
0 10 20 30 40 50 60 70 80 90 1001.00E+07
1.00E+08
1.00E+09
1.00E+10
1.00E+11
1.00E+12
1.00E+13
1.00E+14
1.00E+15
Storm EventsLoad at Site SFCF-2Loading Curve at the WQC
Loa
d, c
olon
ies/d
ay
MoistConditions
HighFlows
Mid-Range Flows
Dry Conditions
LowFlows
(7.32 Square Miles)
CriticalCondition
Site SFCF-2, RM 1.9 of South Fork Currys Fork, Oldham County Load Duration Interval, %
What Do the TMDLs Mean?
• The TMDL identifies the allowable pollutant load and divides this allowable amount to sources.
• The TMDL does not impose a new regulation:• The requirement to develop TMDLs and set
Wasteload and Load allocations exist in the Clean Water Act
• Kentucky water quality standards set pollutant concentrations or desired conditions
What Do the TMDLs Mean?– The goal is to restore the impaired waters to their
designated uses.
– The Division of Water can modify KPDES permits such that the Wasteload Allocations will be met.
– Implementation of Load Allocations (no permits/nonpoint sources) is not a regulatory process; rather a cooperative/voluntary effort sometimes facilitated by a local stakeholder-based planning process.
Contact InformationAndrea M. FredenburgTMDL SectionDivision of Water200 Fair Oaks LaneFrankfort, KY 40601