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WASTEWATER COLLECTION SYSTEM
MANAGEMENT, OPERATIONS AND MAINTENANCE PROGRAM
(MOM)
TDEC CASE NUMBER 05-0399
BY
CLEVELAND UTILITIES
ORIGINALLY SUBMITTED JUNE 2006
REVISED JUNE 2012
WASTEWATER COLLECTION SYSTEM
MANAGEMENT, OPERATIONS AND MAINTENANCE (MOM) PROGRAM
TABLE OF CONTENTS
Section # Description Page Numbers
1 Major Goals of Wastewater Collection System Management,
Operations and Management (MOM) Program …………………………. 1-1 to 1-7
2 Positions Responsible for Implementing Elements of
MOM Program …………………………………………………………………………… 2-1 to 2-2
3 Personnel Training Procedures……………………………………………………. 3-1
4 Wastewater Collection System Mapping…………………………………….. 4-1
5 Wastewater Collection System Physical Inspection and
Testing Procedure……………………………………………………………………….. 5-1 to 5-17
6 Wastewater Collection System Preventative and Routine
Maintenance Procedures……………………………………………………………. 6-1 to 6-73
7 Wastewater Collection System Corrective Maintenance
Procedures…………………………………………………………………………………. 7-1 to 7-6
8 Wastewater Collection System Maintenance of
Rights-of-Way and Easements……………………………………………………. 8-1 to 8-3
9 Wastewater Collection System Components Inventory
Management Procedures…………………………………………………………… 9-1
10 Identification, Prioritization and Implementation Procedures
For Wastewater Collection System Rehabilitation Actions………… 10-1 to 10-4
11 Standards for Construction of New Additions to and Repair
And Rehabilitation of Wastewater Collection System………………... 11-1
12 Quality Assurance Program for New Additions to
Wastewater Collection System……………………………………………………. 12-1
13 Procedures to Update and Modify MOM Program Elements……… 13-1
Appendix A – Cleveland Utilities Water and Wastewater Division
Organizational Chart
Section 1
Major Goals of Wastewater Collection System Management,
Operations and Maintenance (MOM) Program
Provide an information management system to evaluate wastewater collection system
management, operations and maintenance programs; wastewater customer service
calls; sanitary sewer overflows; the status of wastewater collection system
rehabilitation; and the overall performance of the wastewater collection system.
1. Management Program Information Management Systems
a. Purpose
The purpose of maintaining a Management Program information
management system is to evaluate management, operations and
maintenance programs, customer service calls, sanitary sewer overflows, the
status of system rehabilitation and the overall performance of the sanitary
sewer system. The goal of an effective wastewater collection system
information management system should be to continually improve the
performance of the operations and maintenance and reduce the number of
sanitary sewer overflows, customer complaints, and service interruptions.
b. Scope
This program uses reports and results of the service call tracking system,
operations and maintenance to evaluate and analyze the effectiveness of the
sanitary sewer collection system.
c. Performance Measures
Reasonable goals for the program are to annually incorporate 100 percent of
the information obtained during the previous 12 months from reporting and
recordkeeping into our GIS database and tracking system.
d. Resources Required
This program is staffed with employees that appear in the Cleveland Utilities
Water Division Organizational Chart contained in the Appendix.
1-1
e. Reporting and Recordkeeping
Summary reports for each sanitary sewer drainage area should be completed
and filed with the Wastewater Collections Supervisor and the manager of the
SCOPE-10 program. Reports for each drainage area will be generated
periodically with a minimum of once annually.
2. Operations Programs Information Management System
a. Purpose
The purpose of the Operations Programs information management system is
to acquire and compile information relative to the operational activities of
the sewer collection system and to generate summary reports for review by
the SCOPE-10 program manager.
b. Scope
The Operations Programs information management system compiles
information from the Fats, Oils and Grease control (FOG) program and other
operational programs of Cleveland Utilities. Reports from the FOG program
will be submitted to the Supervisor of Environmental and Regulatory
Compliance (ERC).
Operational reporting generated by Wastewater Collections personnel shall
be submitted to the manager of the MOM program for incorporation into the
GIS database. Reports are coordinated with the Wastewater Collections
Supervisor for scheduled CCTV and cleaning of gravity sewer pipelines.
c. Performance Measures
A performance measure for the FOG program is to perform a minimum of
one annual inspection at each registered FOG customer. An additional
performance measure would be reduction of overflows resulting from fats,
oils and greases.
Reasonable goals for the Operations Programs information management
system include televising and cleaning areas affected by FOG and
incorporating data into the GIS database.
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d. Personnel
This program is staffed with employees that appear in the Cleveland Utilities
Water Division Organizational Chart contained in the Appendix.
e. Reporting and Recordkeeping
Reports are coordinated with the ERC supervisor for the FOG program and
with the Sewer Maintenance Supervisor for scheduling of gravity sewer
pipeline cleaning and inspection. Reports shall also be filed with the SCOPE-
10 manager.
3. Maintenance Programs Information Management System
a. Purpose
There are two purposes in tracking and managing maintenance information.
First, it is indicative of the condition of the wastewater collection system and
can be used to define problem areas in the sewer system. Second, the
information obtained can be used for budgeting purposes in determining
needed expenditures for system preventative maintenance and corrective
maintenance.
b. Scope
This program uses work orders, customer complaints, after hours calls, and
additional maintenance records for tracking and detailed maintenance tasks.
These tasks are initiated with scheduled and emergency maintenance jobs
and are typically completed by Cleveland Utilities employees, although
outside contractors may be required for larger projects. These reports and
results of the program are incorporated into the Management Program
Information Management System to track customer complaints, problem
areas and evaluate areas for rehabilitation.
c. Performance Measures
Performance measures for the Maintenance Programs Information
Management System are focused on response time and the time of
completion for repairs. As a general rule, complaints should be responded to
within three hours and routine repairs should be completed within one day.
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Preventative maintenance should be scheduled so the numbers of man-
hours devoted to preventative maintenance are equal to those devoted to
corrective maintenance. If the time spent on corrective maintenance exceeds
preventative maintenance by a ratio of 2:1 it is indicative that additional
staffing is required to perform preventative maintenance.
d. Personnel
This program is staffed with employees that appear in the Cleveland Utilities
Water Division Organizational Chart contained in the Appendix.
e. Reporting and Recordkeeping
Scheduled maintenance for gravity sewer mains are coordinated and tracked
within the Maintenance Programs Information Management System. This
program issues work orders for routine inspection of assets and tracks results
of said inspections. Summary reports issued within the Sewer Maintenance
department from the Maintenance Connection program are sent to the
Sewer Maintenance Supervisor and the SCOPE-10 manager for review and
evaluation.
Scheduled maintenance for sewer force mains and lift stations are
coordinated and tracked within the Maintenance Connection program.
Summary reports issued within the Maintenance Department from the
Maintenance Connection program are sent to the Facilities Maintenance
Supervisor for review and evaluation.
4. Service Order Management and Tracking System
a. Purpose
The purpose of the Service Order Management and Tracking System is to
properly track and resolve customer complaints for improved service. This
program also assists in compiling information and identifying problem areas
within the sanitary sewer collection system.
b. Scope
The Service Order Management and Tracking System uses the Service Order
database as a source of information. Information from this system will be
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incorporated into the SCOPE-10 program to identify problem areas and
evaluation for rehabilitation.
c. Performance Measures
The accepted performance measures for complaints are time of response
and time of resolution. In emergency situations (life-threatening), the goal is
immediate response to emergency and repair of problem as soon as possible.
For periodic problems, such as overflows, reasonable response to complaints
is within one hour. Dry weather overflows should be mitigated within 24 to
48 hours. Reasonable time to mitigate wet weather overflows is dependent
upon the problem and location. However, each overflow, its’ cause and plans
to mitigate the problem will be addressed for each instance.
For smaller issues, such as odor issues, 24 to 48 hours is a reasonable
response time with resolution of the complaint varying upon identified
problem.
d. Personnel
This program is staffed with employees that appear in the Cleveland Utilities
Water Division Organizational Chart contained in the Appendix.
e. Reporting and Recordkeeping
Each service call is tracked within the Service Order database from time it is
issued until complaint is resolved. The service order is entered into the
Service Order database and each service order is then incorporated into the
GIS mapping system to assist in identifying problem areas or areas requiring
additional inspection.
Completed service orders are presented to the Sewer Maintenance
Supervisor and the manager of the SCOPE-10 program for review.
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5. Performance Indicators
a. Purpose
The purpose of Performance Indicators are to identify and measure
improvements to the wastewater collection system.
b. Scope
Performance Indicators involve maintaining a record of work completed and
progress made in identified areas of the wastewater collection system.
Where reviewed literature provides average values within the industry
Cleveland Utilities’ values will be compared to these.
However, where no performance values indicators have been determined
the values will be used as a means of tracking improvement with a goal of
continual improvement. In those cases, a periodic review and summary of
results is generated and tracked to determine level of improvement and can
indicate what measures need to be taken to affect further progress.
The SCOPE-10 program will serve as a performance value indicator
management system through the flow monitoring we are performing as part
of rehabilitative studies. We will be able to quantitatively measure the
reduction of I/I and see the improvements we are making within the areas
we are flow monitoring.
c. Performance Measures
Performance measures may be found in wastewater literature or at the
Water Environment Foundation’s website www.wef.org. Regardless of the
starting point, continual improvement should be the goal of the program.
d. Personnel
This program is staffed with employees that appear in the Cleveland Utilities
Water Division Organizational Chart contained in the Appendix.
e. Reporting and Recordkeeping
Reports produced through the program are a part of the individual reporting
of the afore-mentioned programs, in that the performance indicators are
tracked by those programs.
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B. Continually improve the performance of wastewater collection system
operations and maintenance and to reduce the number of sanitary sewer
overflows, wastewater customer complaints and service interruptions.
C. Increase the useful life and capacity of the wastewater collection system.
D. More efficiently utilize funds dedicated to the wastewater collection system.
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Section 2
Positions Responsible for Implementation of MOM Program
A. Personnel Training
The planning, scheduling and evaluation of the usefulness of formal training of
personnel responsible for the operation and maintenance of the wastewater collection
system is the responsibility of the Vice-President of Water and Wastewater.
B. Wastewater Collection System Mapping
The production and maintenance of wastewater collection system mapping is the
responsibility of the Engineering and SCOPE-10 manager.
C. Wastewater Collection System Inspection and Testing
The inspection and testing of the wastewater collection system is the responsibility of
the Sewer Maintenance Supervisor and the SCOPE-10 program manager.
D. Preventative and Routine Maintenance of Wastewater Collection System Piping and
Pumping Systems
The preventative and routine maintenance of wastewater collection system piping is the
responsibility of the Sewer Maintenance Supervisor.
The preventative and routine maintenance of the wastewater collection system
pumping stations is the responsibility of the Facilities Maintenance Supervisor.
E. Maintenance of Wastewater Collection System Rights-of-Way and Easements
The maintenance of the wastewater collection system rights-of-way and easements is
the responsibility of the Sewer Maintenance Supervisor. Clearing of right-of-ways and
easements may also be conducted by contract personnel.
F. Materials Inventory
The inventory of materials maintained for the wastewater collection system is the
responsibility of the Controller.
2-1
G. Wastewater Collection System Rehabilitation
1. Prioritization
The prioritization of wastewater collection system rehabilitation is the responsibility
of the Wastewater Rehabilitation Manager with input from the Sewer Maintenance
Supervisor and Vice-President of Water and Wastewater.
2. Implementation
The implementation of wastewater collection system rehabilitation is the
responsibility of the Wastewater Rehabilitation Manager with input from the Sewer
Maintenance Supervisor and Vice-President of Water and Wastewater.
H. Requirements and Standards for Construction of New Wastewater Collection System
Components
The development of requirements and standards for construction of new wastewater
collection system components is the responsibility of the Engineering Manager with
input from the SCOPE-10 manager and Vice-President of Water and Wastewater.
I. Updating MOM Program
The responsibility of updating the MOM is the responsibility of the SCOPE-10 program
manager.
2-2
SECTION 3
Personnel Training Procedures
A. Technical Training Program
Technical training is provided to personnel associated with the wastewater collection
system through seminars and short courses presented by the Tennessee Department of
Environment and Conservation, the Water Environment Federation, the Kentucky-
Tennessee Water Environment Association, National Association of Sewer Service
Companies, and the American Water Works Association.
A. Skills Training Program
Skills training for non-professional personnel associated with the wastewater
collection system is provided by foremen or supervisors.
B. Safety Training Program
Safety training is provided to personnel associated with the wastewater collection
system in monthly safety meetings by the Safety Supervisor.
These safety meetings include the following topics:
• Confined Space Procedures
• General Safety Procedures
• Traffic Management Procedures
• Lock-out/Tag-out Procedures
• Electrical Safety Procedures
• Safety Equipment/PPE Use Procedures
• Safety Performance Program
3-1
Section 4
Wastewater Collection System Mapping
A. Status of Existing Wastewater Collection System Mapping Database
Cleveland Utilities maintains mapping of the existing wastewater collection system in a
geographical information system (GIS) format. The existing wastewater collection
system mapping is complete and current as of May 2012.
A. Procedures for Adding Extensions or Improvements to Wastewater Collection
System to Mapping Database
When an extension, improvement or change occurs to the existing wastewater
collection system as-built drawings will be submitted to the GIS Administrator by
Cleveland Utilities’ inspector or the engineer responsible for the extension or
improvement. The GIS Administrator will collect GPS coordinates and incorporate
the as-built plans into the GIS mapping database.
B. Incorporating Data into the Mapping System
Service orders, after-hour calls, TV work and maintenance will be incorporated into
the GIS mapping database by the GIS Administrator. The data to be incorporated will
be tracked through the Service Order Management and Tracking System and
scheduled maintenance for gravity sewer mains will be tracked within the
Maintenance Programs Information Management System.
4-1
Section 5
Wastewater Collection System Physical Inspection and Testing
Procedure
A. Flow Monitoring
1. Purpose
The purpose of this program is to determine the flow characteristics of a sanitary
sewer segment or drainage basin. Generally, flow monitoring to establish
wastewater collection system assessment priorities entails the monitoring of flow in
drainage basins containing approximately 20,000 lineal feet of gravity sewer pipe.
These basins may be larger or smaller dependent upon the connections and
orientations of the wastewater collection system.
Analysis of flow information, particularly when both wet and dry periods are
included, can reveal the condition of gravity sanitary sewer pipelines and greatly
assist in establishing priorities for gravity sanitary sewer rehabilitation. In addition,
these studies can be used to identify drainage basins which have reserve capacity
and can be used for planning and development.
2. Scope
The location of flow monitors will be determined by the manager of the Scope-10
program and Cleveland Utilities’ consulting engineers. The results obtained from the
flow monitoring program will be incorporated within the Scope-10 program and be
used to determine which basins are in need of further study.
Flow monitors that are located in areas that are determined to need rehabilitation
will be left in place long-term to help quantify the amount of inflow and infiltration
(I/I) that have been removed by the rehabilitation.
5-1
3. Resources Needed
The manager of the Scope-10 program and Cleveland Utilities’ consulting engineers
will determine the placement of the flow meters such that they are properly isolated
and to evaluate field conditions where a flow meter is properly gauging the flow.
The use of the system-wide GIS map and the input of field personnel are important.
4. Method
Preparation: Flow meter locations will be determined by the manager of the Scope-
10 program and Cleveland Utilities’ consulting engineers. The flow meters shall
register flow velocity, depth and quantity of flow in a maximum of 15 minute
intervals and shall be recently calibrated. Flow meters shall be installed with remote
access capability and set with trigger levels such that any increase of flow shall cause
the flow meter to report in 15 minute intervals. This data shall be accessible to
Cleveland Utilities remotely via an internet connection. Cleveland Utilities currently
has five rain gauges that measure precipitation and have remote access through our
SCADA system.
Procedure: The Scope-10 manager and consulting engineer will manage this program
using the following procedure:
A. Flow meter locations will be determined by the manager of the Scope-10
program and Cleveland Utilities’ consulting engineers.
B. Flow sensors should ideally be placed in gravity sewer pipelines with no
bends or side flows for a distance of at least six pipe diameters upstream and
at least two pipe diameters downstream. Manholes should ideally not have
any flows entering other than that which is to be metered.
C. Flow monitoring should continue for at least sixty days and include at least
three substantial rain events, one of which should register a minimum of one
inch of precipitation in a three-hour period.
D. Flow meters should be checked weekly for battery strength and accuracy of
real-time readings and velocity. The accuracy check is accomplished by
comparing field measurements with measured readings.
E. Flow should be analyzed to obtain average and maximum hourly flow rates
during periods of dry and wet weather. Rain gauge information should be
used to define typical wet weather periods and determine the return
frequency of the rain event in question.
F. Preliminary Wastewater Collection System Assessments: Any field
observations made by work crews and operators that may indicate problem
5-2
areas within the wastewater collection system shall be reported and repaired
if applicable.
5. Reports and Recordkeeping
The Flow Monitoring Report should include average and peak hourly flow for each
monitoring location during dry and wet weather. Any rain gauge data included in the
report will be cross-referenced to flow and should show the drainage basins with the
most serious I/I problems.
B. Manhole Inspection
1. Purpose
The primary purpose of conducting manhole inspections on a regular basis is to
locate and identify defects in manholes that may be a source of I/I. However, the
inspections are also used to reveal problems of structural integrity or missing or
damaged covers that could present serious hazards to the public. Inspections may
also show evidence of surcharge in the manhole, indicating potential blockages or
evidence of I/I that could lead to sanitary sewer overflows. The inspection also
allows for verification of size and material of manholes and gravity sewer pipelines,
as well as depths to inverts.
2. Scope
Inspections can be carried out in conjunction with daily operations, during
inspection of gravity sewer mains, or as a part of a SSES study. During the inspection
a Manhole Inspection Form should be completed and submitted for incorporation
into the GIS mapping system.
Manholes should be inspected on a rotating schedule of approximately once every
ten years, which can be tracked through our GIS database. Manhole Inspection
records shall be filed and incorporated into the GIS database so that no manholes are
overlooked.
3. Staffing and Equipment
Manhole inspection typically requires a crew of at least two people, possibly more
dependent upon traffic and if manhole entry is required. In cases where manhole
depths are less than 30 feet they shall be inspected from the top utilizing a pole-
mounted camera. This camera shall record video of the inspection to be submitted
in conjunction with the Manhole Inspection Form.
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A digital camera will be required to take photographs of the manhole at the surface
and of the interior of the manhole. Additional equipment needed will be a standard
set of manhole opening tools. A flashlight will also be required to perform proper
inspections.
4. Method
Preparation: Manhole inspections should be completed during the wetter months of
the year, typically October to April, as inspections performed during this period are
typically more revealing of I/I problems due to elevated water tables and saturated
soil conditions.
If manholes are located in highways or roadways, traffic cones, signs and possibly
flagmen will be needed for traffic control. If several inspections are planned along a
high-traffic area then emergency services (911) should be notified.
Manhole inspections shall be performed from the surface utilizing a pole-mounted
camera capable of recording video unless the depth of the manhole requires
manhole entry. If manhole entry is required then confined space entry equipment
shall be used. During inspection a digital camera shall be used to photograph the
surface and interior of the manhole. During each inspection a Manhole Inspection
Form shall be completed and the videos and photographs shall be attached digitally
to each form.
Procedure:
A. The manhole to be inspected is opened and proper safety precautions
concerning traffic and confined space entry are observed. The manhole
cover is checked for cracks, holes, proper fit or any other defects.
B. The manhole cover ring is checked for alignment with the cone and
inspected for any evidence of leaks at the seal with the cone. The structural
integrity of the ring is checked.
C. The cone section is checked for its’ seal with the barrel section and any
evidence of leakage at the joints. All of the seals in the barrel section of the
manhole are inspected and noted as well as its structural integrity.
D. The connections of the base of the manhole to the barrel section and those
of the gravity sewer pipes to the barrel section are inspected and noted. Any
leakage at these points are noted and estimated for flow rate in gallons per
minute.
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E. Incoming pipe size, material and locations are noted in each manhole. The
inverts of each pipe are recorded on the Manhole Inspection Form.
5. Reports and Recordkeeping
The Manhole Inspection Form is completed at the time of inspection and all
photographs and video recordings are attached. The Manhole Inspection Form and
all attachments are given to the GIS coordinator for incorporation into the GIS
mapping system.
6. Performance Indicators and Goals
A performance indicator for the Manhole Inspection program is the percentage of
manholes inspected in the drainage basin of interest. This indicator is the number of
manholes inspected within a selected basin divided by the total number of manholes
in the basin. The annual goal is to inspect 100% of the manholes within the selected
drainage basin.
C. Smoke Testing
1. Purpose
The purpose of conducting smoke testing is to locate leaks or points of entry into the
gravity sewer collection system that may be sources of inflow. Typical types of leaks
that are easily found by this procedure are downspouts, yard drains, broken or
misaligned sewer connections, basement sump pumps, untrapped drains, open
cleanouts, and catch basins. This procedure may indicate pipe defects that are also
sources of groundwater infiltration, but because of fluctuation groundwater
elevations this isn’t a reliable indicator of all such sources.
The advantages of utilizing smoke testing to locate illegal connections to the sanitary
sewer collection system is that it is inexpensive and large areas can be inspected
quickly.
2. Scope
This method is most effective when there is minimal flow in the sewer lines. Smoke
testing is not recommended on rainy days or when the sewer mains are flowing at or
near capacity. Additionally winds may disperse smoke before it can be seen or
located, therefore caution should be exercised if smoke testing is performed during
windy conditions.
If smoke is detected it indicates the location of sources of I/I into the gravity sewer
system, however if no smoke is detected it doesn’t necessarily mean there is no I/I
5-5
within the tested pipe segment. In the segments where smoke has been detected at
a defect findings should be verified via CCTV inspection and or dyed-water flood
testing.
3. Resources Needed
At least a three-person crew is required to effectively conduct smoke testing. This
includes one person to operate the blower and at least two people observing the
tested area for smoke. The observers are responsible for noting the location and
intensity of the smoke leaks and entering them into the Smoke Testing Form. Digital
photographs, locating the leak with a marking flag, and measurements should be
taken at each smoke leak and entered into the Smoke Testing Form. The intensity of
the leak should be classified.
The required equipment is a smoke blower with a flat ring seal that can be mounted
onto a standard manhole opening. The air delivery rate for the blower should be at
least 53 cubic feet per second (cfs). Smoke testing should be performed at the rate
of approximately 600 to 800 feet per set-up to ensure smoke has completely filled
the pipes. Shorter reaches should be used for lines larger than 10 inches in diameter
and in highly populated or industrial areas.
4. Method
Preparation: Prior to beginning smoke testing notice shall be given to local fire
departments, police departments and residents that smoke testing is being
conducted in the designated areas. The notice should include the dates of the
testing, an explanation of its’ purpose, the properties of the smoke and contact
information if there are questions concerning the testing. A knowledgeable
representative should be on hand to answer any questions. The notices shall be
distributed at least one to three days prior to testing, preferably by door hanger
notice. Residents should be forewarned that any smoke escaping from their roof
vents is normal and they shouldn’t be alarmed.
Procedure:
A. The smoke blower is placed over the open manhole in the gravity sewer
pipeline section to be tested. Typically one to two, with a maximum of 3,
pipeline sections should be tested at one time for best results. The total
pipe footage per setup should not exceed 600 to 800 feet.
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B. The smoke blower is started, set at full speed and the flow of smoke is
started.
C. Smoke should begin discharging from nearby roof vents within 1 to 2
minutes.
D. At least two observes should be on to hand to note any smoke from
downspouts, catch basins, open cleanouts or any other sources on the
Smoke Testing Form. A neat sketch depicting the smoke sighting should be
drawn on the Smoke Testing Form. The form should also include
measurements to each sighting. Digital photographs should be taken of
each sighting, with the location noted by a marking flag and included with
the Smoke Testing Form.
E. Information gathered during smoke testing is included on the Smoke Testing
Form and given to the GIS coordinator for inclusion into the GIS mapping
system.
5. Reports and Recordkeeping
The Smoke Testing Form is completed at the time of the test and photographs or
nay notes are attached to the form. Defects and the forms are entered into the GIS
mapping system. Based upon the number and type of defects noted the area may be
selected for subsequent CCTV inspection and or dyed-water flood testing.
6. Performance Indicators and Goals
A performance indicator for smoke testing is the percent of the drainage basin
smoke tested. This indicator is the number of feet of gravity sewer pipeline tested
divided by the total number of feet of gravity sewer pipeline within the drainage
basin. A realistic goal is to test 100% of the gravity sewer pipeline within the selected
basin, with exception given to large interceptor lines which will be inspected via
CCTV inspection.
D. Closed Circuit Television Inspection
1. Purpose
There are multiple purposes of inspecting gravity sewer pipelines using closed circuit
television inspection (CCTV). Most commonly, CCTV inspections are used to find the
cause of problems in areas troubled by back-ups, overflows or excessive I/I. It can also
be used to locate sewer services or improper or illegal connections. Prior to correcting
these problems CCTV inspections can be used to determine the most applicable
method of rehabilitation. After construction of new sewers it can be used to inspect
the new installation prior to owner acceptance.
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Documentation of CCTV inspections are made on CCTV inspection forms and
supplemented with video recording. Since the position and angle of the TV camera are
controlled by the operator any defects can be identified during the inspection.
2. Scope
CCTV inspections are most effective during periods of normal rainfall, yet when sewer
flow is minimal. This is due to the fact that any infiltration leaks will be seen if the
groundwater table is above the level of the sewer’s crown, yet flow is low enough
such as not to impede the use of the equipment. Visual inspection will not be
complete where the camera is submerged. This could be due to flow depths or
“bellies” in the gravity sewer main.
3. Resources Needed
A two or three person crew is typically sufficient to conduct CCTV inspections,
although additional workers may be required if cleaning or root cutting is required to
perform the inspection. Additional personnel may also be required for traffic control.
It is essential the camera operator is well-trained and experienced in the operation of
the equipment, managing recording of the video and completing the field logs
properly.
The camera equipment includes a waterproof video camera especially made for sewer
inspection that can self-propel itself through the gravity sewer pipeline. The camera
should be capable of panning, tilting and zooming and must have its’ own light source.
A monitor for real-time viewing and guiding the camera through the pipe is also
required.
To record the inspection a digital video recorder should be used which can document
the date, time of day, and length of sewer pipeline travelled in feet. Problems that are
located and identified during the course of the inspection should be documented on
the CCTV inspection form.
Radios or cell phones are helpful to communicate between the personnel at the two
manholes and should be available if needed. Also, if the depth of incoming flows
prohibit CCTV inspection these lines may be plugged temporarily to allow inspection
of the gravity sewer pipeline. Therefore, a portable air compressor and a selection of
plug sizes should be kept on hand.
5-8
4. Method
Preparation: Prior to setting up the video camera equipment it may be necessary to
flush or clean the pipeline to remove accumulated grease and sediment. If the area
being inspected is in a high-traffic area traffic control will be required. 911 emergency
services should be contacted if the period of the inspection will exceed 1 to 2 hours or
is in an extremely high volume area or located in critical areas, such as hospitals.
Procedure:
A. The camera is lowered down into the manhole and positioned to begin
televising. Typically the camera is aligned to TV with the flow of the water.
B. It is extremely important to record accurate measurements, in the event that
defects are located and to locate sewer services. The measurements should
be provided by the counter on the camera. The counter should be set to read
the distance from the center of the beginning manhole to the center of the
ending manhole. These measurements can always be verified by measuring
between the manholes at the surface.
C. The inspection is begun by guiding the camera through the pipeline at a speed
not to exceed ½ foot per second or 30 feet in 1 minute. The video recording
equipment is started and the operator notes the upstream and downstream
manhole and the Pipe ID number. During the inspection the operator should
note any defects, roots, misaligned pipes, obstructions and the location of
sewer services. All observations should be noted at the time of inspection on
the CCTV form.
D. If obstructions are encountered, the obstruction may be removed by the use
of a “jetter” or a root cutter to remove roots or protruding taps. If the
obstruction can’t be removed a “reverse” setup may be performed where the
direction of the televising is reversed.
E. The camera should be able to view 90 to 95 percent of the circumference of
the pipe. If depth of flow prevents this, the upstream side can be temporarily
plugged.
5. Reports and Recordkeeping
The CCTV Inspection form is completed at the time of inspection and the supporting
video is attached to the form.
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6. Performance Indicators and Goals
A performance indicator for CCTV inspections is the percent of the drainage basin
inspected. This indicator is the number of feet of gravity sewer pipeline inspected
divided by the total number of feet of gravity sewer pipeline within the drainage
basin. The amount of main inspected will fluctuate based upon results of smoke
testing and flow isolation testing, however typically 40 to 50 percent of the gravity
sewer pipeline will be televised in the selected basin annually.
E. Night Time Flow Isolation Studies
1. Purpose
The purpose of this program is to identify sections of gravity sewer pipelines that are
allowing significant groundwater infiltration into the wastewater collection system.
This is done by selecting small “micro-basins”, typically 5,000 feet or less, within a
selected drainage basin and taking flow measurements with calibrated volumetric
weirs. The studies should be performed at night, when base flows are typically low,
and after a period of significant rainfall, typically at least 1 inch. The presence of
significant flow during this testing signifies substantial amounts of groundwater
infiltration into the wastewater collection system.
2. Scope
This program may use the results of flow monitoring to indicate gravity sewer
pipeline segments or areas where groundwater infiltration is significant. This will be
evident from the hydrographs, where rain-induced increases in flow do not readily
return to normal levels after a rainfall event. The results of this program are used to
determine locations to perform CCTV inspection.
3. Resources Needed
A field crew that is trained and experienced in the tracing of gravity sewer pipelines
and in the operation of portable flow measuring devices is needed. A reliable system
map and portable measuring devices are required to perform the testing. Results
shall be reported on the Flow Isolation Form.
4. Method
Preparation: Test locations should be carefully selected based upon a current
wastewater collection system map. These locations should be located in the field
prior to testing and checked to make sure they are accessible and are suitable for
obtaining accurate night time flow measurements. If located in residential areas
residents should be notified of the work being performed. Flow measurements shall
be taken with calibrated volumetric weirs.
5-10
Procedure: The Scope-10 program manager or the consulting engineer will manage
the program utilizing the following procedure:
A. The Scope-10 program manager or the consulting engineer will select the
location where to perform the flow isolation testing based upon the basin size
from the wastewater collection system map.
B. Testing should ideally be performed following a rain event of at least 1 inch,
the Scope-10 program manager or the consulting engineer should give
approval to perform the testing.
C. The flow measuring devices should ideally be set up in a straight section of
gravity sewer pipeline, with no side flows entering the flow upstream of the
device.
D. During the day the field crew locates the manhole where testing will be
performed.
E. After the evening wastewater flow rates have decreased, usually between
11:00 PM and 5:00 AM, the crew enters the manhole using necessary
confined space entry procedures.
F. The calibrated volumetric weir is installed in the gravity sewer pipeline
upstream of the manhole and an instantaneous flow measurement is made
and recorded on the Flow Isolation Form.
G. The weir is removed from the manhole and the crew moves to the next test
location.
5. Reports and Recordkeeping
The Flow Isolation Reports are completed and submitted to the Scope-10 manager
and/or the consulting engineer for review. The results of the testing will be used to
identify areas for CCTV Inspection.
F. Service Lateral Investigations
1. Purpose
The purpose of the sewer service lateral investigation program is to identify sources
of I/I entering the wastewater collection system through the sewer service lateral.
This is currently done by smoke testing during the smoke testing of the mainline
sewer. The connection to the mainline sewer is observed during CCTV inspection.
2. Scope
Service lateral investigations involve the connection from the sewer main to the
home. Cleveland Utilities maintains the service lateral from the sewer main to the
5-11
property line. From the property line to the home it’s the property owner’s
responsibility to maintain their service.
As part of the investigation it’s called upon for field personnel to enter private
property to investigate smoke sightings and investigate potentially illegal
connections to the wastewater collection system.
3. Resources Needed
An individual who is knowledgeable of the utility service area, its’ regulations, and
policies concerning permissible discharges into the wastewater collection system.
This individual should be able to review the smoke testing records and determine
whether there is a potential for rainfall induced inflow and whether a disconnection
order is necessary.
4. Method
Preparation: The smoke testing forms, photographs and any other relevant field
information gathered during the smoke testing is needed.
Procedure:
A. The smoke testing form is reviewed by a qualified individual to ascertain
whether connections comply with regulations and policies of Cleveland
Utilities.
B. If an illegal connection to the wastewater collection system is discovered a
notice of disconnection will be issued to the property owner to remove the
connection within 30 days. If the connection isn’t disconnected a second
warning will be issued that states if the connection isn’t disconnected within
the next 30 days water service will be discontinued.
5. Reports and Recordkeeping
The Smoke Testing Form is completed at the time of the test and photographs or
any notes are attached to the form. Defects and the forms are entered into the GIS
mapping system.
5-12
6. Performance Indicators and Goals
A performance indicator for service lateral investigations is the percent repairs
completed. This indicator is the number of service laterals repaired divided by the
number of service laterals identified as needing repair.
As part of our sewer rehabilitation plans each sewer lateral in the drainage basin
study will be reviewed. We anticipate performing CIPP lining of the services to the
property line, relaying the service to the property line or simply brushing and
cleaning the services if they are in a good state of repair. Our goal is to rehabilitate
50 to 70 percent of Cleveland Utilities’ portion of the service laterals in the selected
drainage basin identified as needing rehabilitation annually.
G. Manhole Rehabilitation
1. Purpose
The purpose of rehabilitating manholes is to correct defects and structural
deficiencies, but primarily to reduce or eliminate I/I. Historically, a significant
percentage of identified I/I is from defective manhole or manhole/line connections.
2. Scope
The program uses the Manhole Inspection Forms to identify manholes that are in
need of rehabilitation and prioritize the repairs based upon severity of structural
defects and I/I flow rates.
3. Resources Needed
The Scope-10 program manager or the consulting engineer will evaluate the
manhole inspection forms and identify manholes that are most in need of
rehabilitation. The defects noted are then rated according to the quantities of I/I
and severity of structural defects.
A good wastewater collection system map is needed for location of manholes and
locating other pertinent features, such as streams, roadways and structures.
4. Method
Preparation: The Scope-10 program manager or the consulting engineer assembles
all pertinent reports relating to investigations within the designated drainage basin
as well as a wastewater collections system map of the basin.
5-13
Procedure:
A. By taking data from the Manhole Inspection forms the manholes within the
selected drainage basin will be prioritized for repair based upon severity of
structural defects and I/I flow rates. The ground water table, soil saturation,
inspection date and recent weather should all be considered when
reviewing manhole data.
B. Manhole rehabilitation methods should be evaluated for suitability of each
manhole. Any vented covers and covers with large pick holes should be
replaced where feasible. Manhole inserts should be considered in low-lying
areas and chimney and frame seals should be inserted where joint leaks
have been identified. Chemical grouting may be required to stop active I/I.
Epoxy lining coating systems may be necessary where structural defects
indicate the need to seal the wall of the manhole, or if their structural
degradation due to high hydrogen sulfide.
C. The method of rehabilitation is chosen at each manhole based upon the
particular defects, the size, condition and material of the manhole. Some of
the different types of rehabilitation we employ are:
• Manhole Inserts
• Chemical Grouting
• Coating Systems
• Structural Linings
• Corrosion Protection
D. The rehabilitation project is completed by vacuum testing of manholes. The
project inspector shall be on-site during inspection to verify test results.
E. Wastewater flow data is measured by long-term flow monitoring within the
drainage basin.
F. The information relative to rehabilitation is incorporated into the GIS
mapping system.
5-14
5. Reports and Recordkeeping
The individual Manhole Inspection forms, photographs and videos will be
incorporated into the GIS mapping database. Based upon review of these forms the
manholes will be prioritized for rehabilitation. Once the manholes have been
prioritized and the appropriate means of rehabilitation have been determined a bid
package will be prepared for the manhole rehabilitation. Records will be kept of the
type and date each rehabilitation was performed and those records will be
incorporated into the GIS mapping database.
6. Performance Indicators and Goals
A performance indicator for manhole investigations is the percent repairs
completed. This indicator is the number of manholes repaired divided by the
number of manholes identified as needing repair.
As part of the sewer rehabilitation plans each manhole in the drainage basin study
will be reviewed. Based upon review of the manhole inspection forms the manholes
will be prioritized for rehabilitation. Once the manholes have been prioritized and
the appropriate means of rehabilitation have been determined a bid package will
be prepared for the manhole rehabilitation. Our goal is to rehabilitate 50 to 70
percent of the manholes in the selected drainage basin identified as needing
rehabilitation annually.
H. Rehabilitation Inspection and Testing
1. Purpose
The purpose of inspecting and testing gravity sewer and manhole rehabilitation
projects is to assure the repair of the gravity sewer pipeline or manholes are
properly completed. If rehabilitative work is performed by a contractor the work is
contingent upon acceptance by Cleveland Utilities.
2. Scope
This program relies upon the initial reporting from the Manhole Inspections, CCTV
Inspections, Service Lateral and Manhole Rehabilitation reports. The results of
these programs will be managed within the SCOPE-10 program for wastewater
collection system rehabilitation.
3. Resources Needed
A registered professional engineer is required to supervise this program. A
knowledgeable inspector, either in-house or third party is required to oversee the
5-15
work being performed to insure that it’s being performed in accordance with the
project plans and specifications. Where the work can’t be directly observed, the
work shall be inspected by CCTV inspection, air and hydraulic testing, and if
applicable grout quantities and pressures. The inspector shall keep detailed notes
of each repair.
Testing of rehabilitated gravity sewer pipelines and manholes shall be performed in
accordance with accepted methods. The National Association of Sewer Service
Companies (NASSCO) has developed inspection guidelines that outline the key
elements of an effective inspection program.
4. Method
Preparation: The Scope-10 program manager or the consulting engineer assembles
all pertinent reports relative to investigations in the selected drainage basin. From
these reports a detailed bid package relative to mainline, sewer and manhole
rehabilitation will be prepared. The package will contain estimated quantities of
repair specific to repair methodology for mainline, sewer and manhole
rehabilitation.
Procedure:
A. Prior to the beginning of the project the contractor shall have a
preconstruction conference with Cleveland Utilities, the consulting
engineer, if applicable, and shall include the project manager, foreman and
inspectors.
B. During the construction phase the inspector may follow the inspection
guidelines of the NASSCO “Specifications and Guidelines”, most current
edition. The inspector shall also abide by project-specific specifications in
the contract documents.
C. The method of testing selected is based on the type of rehabilitation to be
performed and the defects that were to be corrected. Some of the systems
employed for inspecting the success of renovation techniques are as
follows:
• Low pressure air testing
• Vacuum testing
• Hydraulic testing
• Visual inspection
• CCTV inspection
5-16
D. The rehabilitation project is completed and results are confirmed by long
term flow monitoring.
E. All information is entered into GIS database and managed through SCOPE-
10 project.
5. Reports and Recordkeeping
A report for each manhole and gravity sewer pipeline rehabilitation project should
include the configuration, determination of need for rehabilitation, estimated I/I
flow rates, recommended method of rehabilitation and estimated I/I reduction.
Results of the rehabilitation will be tracked utilizing long-term flow monitoring.
6. Performance Indicators and Goals
A performance indicator for manhole and gravity line rehabilitation inspection is
the percent rehabilitation completed. This indicator is the number of manholes or
gravity sewer rehabilitated divided by the number of manholes or gravity sewer
identified as needing repair.
Each drainage basin studied will have rehabilitation plans prepared for manholes
and gravity sewer pipelines. Each manhole and pipeline will be assigned a ranking
and the worst gravity sewer mains and manholes will be addressed first. The
amount of gravity sewer main and manhole rehabilitation will vary based upon
which will provide the greatest reduction in I/I. A reasonable goal is to rehabilitate
about 50% of the manholes and gravity sewer pipelines in the selected drainage
basin annually.
5-17
Section 6
Wastewater Collection System Preventative and Routine Maintenance
Procedures
A. Gravity Pipeline Preventative Maintenance Procedures
1. Routine Hydraulic Cleaning Program
a. Purpose
The purpose of this program is to maintain the original hydraulic capacity of
the wastewater collection system. By routinely flushing silt, debris and
accumulated grease from the walls of gravity sewer pipelines, the flow rate of
wastewater in the gravity sewer pipeline should be unchanged from when it
was originally constructed.
b. Scope
This program uses the Maintenance Programs information management
system to accumulate information on gravity sewer pipeline cleanings
conducted on a regular basis. The Maintenance Programs information
management system compiles and tracks work orders, both for preventative
maintenance and for repairs for the purpose of developing budgets and for
scheduling preventative maintenance.
c. Resources Needed
A flusher/rodder truck is needed for routine hydraulic cleaning of the gravity
sewer pipeline system. The operating crew is trained in the operation and
maintenance of this piece of equipment. Information that identifies the areas
of the gravity wastewater collection system in need of hydraulic cleaning is
sent to the crew by the Sewer Maintenance Supervisor based on the results of
manhole inspections and a service order will be completed for the job.
d. Performance Measures
In areas where accumulation of sediment or grease has been identified as
being a problem, hydraulic cleaning should be done on a schedule that will
prevent backups or overflows occurring in response to rainfall induced
6-1
overflows. The establishment of the cleaning schedule is performed by areas
that have historically required regular cleaning in addition to areas that are
identified as having problems by the GIS mapping system, which will identify
service order locations and causes.
e. Reporting and Recordkeeping
Reporting of all preventative maintenance activities should be done on a
service order form. This program uses the findings of field investigations to
identify areas in need of cleaning and produces service orders that are entered
into the Management Systems information management system.
2. Root Control Program
a. Purpose
The purpose of the root control program is to reduce or mitigate the potential
for leaks and blockages created by the intrusion and growth of roots in the
gravity sewer pipelines. Where roots have grown into existing cracks and
holes in pipes, the openings may be enlarged as the roots grow. Where
growth of roots is excessive, the hydraulic capacity of gravity sewer pipelines
will be adversely affected. By controlling the growth of roots before the
obstruct flow more serious problems may be averted.
b. Scope
This program uses information from the Service Order database, CCTV
Inspection program and SCOPE-10 program to identify areas where there may
be root intrusion. Root control activities are documented on service orders
and entered into the GIS database. Either chemical or mechanical means may
be used for the control of roots, and the work may be completed by Cleveland
Utilities personnel or outside contractors. Whoever performs the work shall
complete a service order that will be entered into the GIS database.
c. Resources Needed
A root cutter truck is needed for this program and the crew operating the
truck must be trained in its operation and maintenance. If chemical root
control agents are used, the crew must be fully trained in the use of these
materials and since the chemicals are typically highly corrosive, care must be
taken that no workers downstream are affected.
6-2
d. Performance Measures
A reasonable measure of performance of the Root Control Program is the
percent of root problems identified by CCTV inspection or other means that
have been mitigated by mechanical or chemical means. In a given period of
time this percentage should be at least 70 percent and should be used a goal
for the next time period.
e. Reporting and Recordkeeping
Reporting of all preventative maintenance activities should be done on the
service order form. This program utilizes the findings of field investigations to
identify areas that are in need of cleaning and produces a service order that is
entered into the Maintenance Programs information management system.
3. Manhole Preventative Maintenance
a. Purpose
There are two main purposes of preventative maintenance for manholes.
First, by maintaining structural integrity of the manhole cracks and leaks are
less likely to occur. Second, when I/I is kept to a minimum, voiding behind the
manhole cone or barrel is prevented.
Preventative maintenance for manholes is accomplished primarily by flushing
and cleaning the manhole interior to prevent buildup of sediment, fats, oils
and grease during the performance of routine cleaning of the gravity sewer
pipelines between manholes.
b. Scope
This program utilizes information developed in the Manhole Inspection
Program and the SCOPE-10 program to identify areas where manholes should
be inspected. The adjustment of manholes due to street resurfacing is
coordinated with the City of Cleveland and Bradley County Road Department.
c. Resources Needed
This program is staffed with employees that appear in the Cleveland Utilities
Water Division Organizational Chart contained in the Appendix.
d. Performance Measures
Preventative maintenance of manholes should be performed when gravity
sewer pipeline cleaning or rehabilitation is done. Therefore, a reasonable
6-3
measurement of performance is that when pipeline cleaning or rehabilitation
is done, 100 percent of the adjoining manholes should be subjected to
preventative maintenance.
e. Reporting and Recordkeeping
Reporting of all preventative maintenance activities should be done on the
service order form. This program utilizes the findings of field investigations to
identify manholes in need of preventative maintenance.
B. Pumping Station Preventative Maintenance Procedures
1. Electrical and Control System Maintenance
a. General
The electrical and control systems at each wastewater pumping station are
inspected monthly as part of the preventative maintenance program. The
procedure utilized in this preventative maintenance activity and the reports
of the activities are presented on the following form.
The legend on the next page describes the task coding on the maintenance
reports for each facility.
6-4
Cleveland Utilities
Facilities Maintenance Maintenance Connection
Preventive / Routine Maintenance Legend
1) The first letter represents the frequency of the preventive/routine maintenance.
a. A = Annually
b. BA = Bi-Annually
c. BM = Bi-Monthly
d. H***= Hourly, Plus number of hours
e. M = Monthly
f. Q = Quarterly
g. S = Semiannually
h. W= Weekly
2) The second letter represents the type of preventive/routine maintenance. a. C = Class
b. E = Electrical
c. F = Facilities Maintenance Supervisor
d. M = Mechanical
e. O = Operations
f. P = Process
g. R = Regulatory
h. T = Electronics
i. Z= Water Division Manager
3) The third letter represents the location a. B = Booster Station
b. C= CFP
c. DT= Detention Tank
d. E= Eastside Utility
e. H= HUC
f. L= Lift Station
g. M= Water Division Main Office
h. N= Environmental Sampling Station
i. R= River Station
j. S= Waterville Springs
k. T= Water Storage Tanks
l. W= WWTP
4) The first number represents an ascending means to differentiate PMs.
a. 1 = first PM. b. 2 = second PM.
5) The Booster Stations’ Legend differs in that the first and second number represents the location
of the station. The last number represents an ascending means to differentiate PMs.
Example: MEB11-3 Crown Colony
6-5
Procedure Tasks Sent: 6/1/2012 10:00:21 AM
Report Criteria
ProcedurePK is Lift Station
Task
No Task Action
Procedure
ID
Lift Station
10 Operate each pump and insure that it will duty cycle. WML99
30 Check all controls for proper operation. WML99
50 Check bearings for noise and seals for leakage. WML99
60 Make visual inspection of station and report any unusual conditions. WML99
70 If the station has a backflow device check to ensure that the heat trace is
working to prevent failure.
WML99
6-6
b. Auxiliary Electrical Power Generators
The auxiliary electrical power generators at the Chatata Creek
Wastewater Pumping Station and at the Candies Creek
Wastewater Pumping Station are inspected as part of the
preventative maintenance program. The procedures utilized in
this preventative maintenance activity and the reports of these
activities are presented on the following forms.
6-7
Procedure Tasks Sent: 6/1/2012 9:57:46 AM
Report Criteria
ProcedurePK is Candies Creek Generator, Dryer, Air Valves
Task
No Task Action
Procedure
ID
Candies Creek Generator, Dryer, Air Valves
10 Generator: WML05-2
20 Insure generator start switch is in automatic position. WML05-2
30 Perform generator operational load test. WML05-2
40 Visually check air inlet and outlet for restrictions. WML05-2
50 Visually check drive belt tension. WML05-2
60 Check battery level. WML05-2
70 Visually check hoses and connections for leaks. WML05-2
80 Record the following. WML05-2
90 Generator Hours WML05-2
100 Generator Fuel Level WML05-2
110 Dryer: WML05-2
120 Blow down the separator. WML05-2
130 Check to be sure the automatic drain on the separator is discharging. WML05-2
140 Inspection: WML05-2
150 Check bearings for noise and seals for leakage. WML05-2
160 Make visual inspection of station and report any unusual conditions. WML05-2
170 Cleaning: WML05-2
180 Remove the level transducer from the still well and clean it. Use a high-
pressure water hose to clean the inside of the still well before putting the
level transducer back in service.
WML05-2
190 CAUTION: WML05-2
200 Before leaving the station site, call the WWTP and confirm the fault status
of the pumps that are in service.
WML05-2
210 Air Valves: WML05-2
220 Check all combination air valves on the force main. Ensure they are in proper
working order.
WML05-
2
6-8
Procedure Tasks Sent: 6/1/2012 9:58:06 AM
Report Criteria
ProcedurePK is Candies Creek Generator Fuel
Task No Task Action Procedure ID
Candies Creek Generator Fuel
10 Order diesel fuel for Candies Creek Lift Station. WML05-3
20 Order 400 Gallons of fuel to obtain a full tank. WML05-3
6-9
Procedure Tasks Sent: 6/1/2012 9:59:12 AM
Report Criteria
ProcedurePK is Chatata Creek Generator, Dryer, Air Valves
Task
No Task Action
Procedure
ID
Chatata Creek Generator, Dryer, Air Valves
10 Generator: WML06-2
20 Insure generator start switch is in automatic position. WML06-2
30 Perform generator operational load test. WML06-2
40 Visually check air inlet and outlet for restrictions. WML06-2
60 Check battery level. WML06-2
70 Visually check hoses and connections for leaks. WML06-2
80 Record the following. WML06-2
90 Generator Hours WML06-2
100 Generator Fuel Level WML06-2
110 Dryer: WML06-2
120 Blow down the separator. WML06-2
130 Check to be sure the automatic drain on the separator is discharging. WML06-2
140 Clean off the accumulated dust and dirt on the condenser coil. WML06-2
150 Air Valves: WML06-2
160 Check all combination air valves on the force main. Ensure they are in
proper working order.
WML06-2
170 Inspection: WML06-2
180 Check bearings for noise and seals for leakage. WML06-2
190 Make visual inspection of station and report any unusual conditions. WML06-2
200 Cleaning: WML06-2
210 Remove the level transducer from the still well and clean it. Use a pressure
washer to clean the inside of the still well before putting the level
transducer back in service.
WML06-2
220 CAUTION: WML06-2
230 Before leaving the station site, call the WWTP and confirm the fault status
of the pumps that are in service.
WML06-2
6-10
Procedure Tasks Sent: 6/1/2012 9:59:34 AM
Report Criteria
ProcedurePK is Chatata Creek Generator Fuel
Task No Task Action Procedure ID
Chatata Creek Generator Fuel
10 Order diesel fuel for Chatata Creek Lift Station. WML06-3
20 Order 400 Gallons of fuel to obtain a full tank. WML06-3
6-11
2. Mechanical and Physical Systems Maintenance
a. Candies Creek Wastewater Pumping Station
The mechanical and physical systems at Candies Creek
wastewater pumping station are inspected monthly as part of the
preventative maintenance program. The procedures utilized in
this preventative maintenance activity and the reports of these
activities are presented on the following forms.
6-12
Procedure Tasks Sent: 6/1/2012 9:48:23 AM
Report Criteria
ProcedurePK is Air Compressor
Task No Task Action Procedure ID
Air Compressor
10 Inspect and tighten mounting bolts. MML05-5
20 Inpect and tighten vee-belts. MML05-5
30 Check pulley retaining screws. MML05-5
40 Inspect oil for contamination and change if necessary. MML05-5
6-13
Procedure Tasks Sent: 6/1/2012 9:58:31 AM
Report Criteria
ProcedurePK is Air Compressor
Task
No Task Action
Procedure
ID
Air Compressor
10 Visually inspect the air compressor for signs of wear and damage. WML05-4
20 Drain the condensate from the drop legs, traps, and the tank in the air
distribution system.
WML05-4
30 Check the oil level and add oil if low. WML05-4
40 Clean or replace air filter. WML05-4
50 Check compressor snd air lines for air leaks. WML05-4
60 Check for unusual noise or vibration. WML05-4
70 Clean the cooling surfaces of the compressor. WML05-4
80 Confirm that the safety guards are in place. WML05-4
90 Manually operate the pressure relief valves to see if they are working. WML05-4
6-14
Procedure Tasks Sent: 6/1/2012 9:40:51 AM
Report Criteria
ProcedurePK is Candies Creek Lift Station
Task
No Task Action
Procedure
ID
Candies Creek Lift Station
10 Cycle all valves to fully closed and open position. MEL05
20 Make visual inspection of station and report any unusual conditions. MEL05
30 Clean around station, trim weeds, and pick up trash. Walk the perimeter
of the fence making sure to remove all leaves and debris.
MEL05
40 Check condition of all controls, relays, and starters. MEL05
50 Tighten all wire lugs and check all electrical connections. MEL05
60 Check the floats for excessive dirt and/or grease and clean with water if
necessary.
MEL05
6-15
Procedure Tasks Sent: 6/1/2012 9:41:12 AM
Report Criteria
ProcedurePK is Candies Creek Lift Station Motor
Task No Task Action Procedure ID
Candies Creek Lift Station Motor
5 Mechanical MEL05-2
10 Operate the pump and insure that it will duty cycle. MEL05-2
20 Cycle all valves to fully closed and open position. MEL05-2
30 Check all controls for proper operation. MEL05-2
40 Check bearings for noise and seals for leakage. MEL05-2
50 Electrical. Record the following readings. MEL05-2
60 Megger MEL05-2
70 Ampere (a) MEL05-2
80 Ampere (b) MEL05-2
90 Ampere (c) MEL05-2
100 Hours MEL05-2
6-16
Procedure Tasks Sent: 6/1/2012 9:41:43 AM
Report Criteria
ProcedurePK is Candies Creek Lift Station Motor
Task No Task Action Procedure ID
Candies Creek Lift Station Motor
5 Mechanical MEL05-3
10 Operate the pump and insure that it will duty cycle. MEL05-3
20 Cycle all valves to fully closed and open position. MEL05-3
30 Check all controls for proper operation. MEL05-3
40 Check bearings for noise and seals for leakage. MEL05-3
50 Electrical. Record the following readings. MEL05-3
60 Megger MEL05-3
70 Ampere (a) MEL05-3
80 Ampere (b) MEL05-3
90 Ampere (c) MEL05-3
6-17
Procedure Tasks Sent: 6/1/2012 9:51:41 AM
Report Criteria
ProcedurePK is Candies Creek Lift Station Pump Inspection
Task
No Task Action
Procedure
ID
Candies Creek Lift Station Pump Inspection
5 Pumps: SML05
10 Pull submersible pump, clean and inspect. SML05
20 Drain the oil, flush, and refill the seal chamber with new oil. SML05
30 WARNING: If the seal leaks, the oil casing may be under pressure. Hold
a rag over the oil plug in order to prevent splatter.
SML05
40 Inspect the drained oil. Check for water/oil mixture. SML05
50 Make sure that all screws, bolts, and nuts are tight. SML05
60 Check that the guide bars are vertical. SML05
70 Record the clearance between the impeller skirt and the pump casing. Use
a decimal for the reading and not a fraction.
SML05
80 Clearance SML05
110 WARNING: If there has been leakage, the stator casing may be under
pressure. Hold a rag over the inspection screw to prevent splatter.
SML05
120 Remove the inspection screw and the washer. SML05
130 Place a 1 in the Reading (Final) Column if water is found in the casing
otherwise place a 2 in the Reading (Final) column.
SML05
140 Water Present SML05
150 Make sure the cable clamps are tight. SML05
6-18
Procedure Tasks Sent: 6/1/2012 9:57:23 AM
Report Criteria
ProcedurePK is Candies Creek Strainer Basket
Task
No Task Action
Procedure
ID
Candies Creek Strainer Basket
10 CAUTION: THIS PM MUST BE DONE WITH A MINIMUM OF
TWO PEOPLE.
WML05-1
20 Pull the strainer basket from the pump pit. WML05-1
30 Remove all material from the basket. WML05-1
40 Clean and inspect basket for damage. WML05-1
50 Install strainer basket back into pump pit. WML05-1
6-19
b. Chatata Creek Wastewater Pumping Station
The mechanical and physical systems at Chatata Creek
wastewater pumping station are inspected monthly as part of the
preventative maintenance program. The procedures utilized in
this preventative maintenance activity and the reports of these
activities are presented on the following forms.
6-20
Procedure Tasks Sent: 6/1/2012 9:42:08 AM
Report Criteria
ProcedurePK is Chatata Creek Lift Station
Task
No Task Action
Procedure
ID
Chatata Creek Lift Station
10 Cycle all valves to fully closed and open position. MEL06
20 Make visual inspection of station and report any unusual conditions. MEL06
30 Clean around station, trim weeds, and pick up trash. Walk the perimeter
of the fence making sure to remove all leaves and debris.
MEL06
40 Check condition of all controls, relays, and starters. MEL06
50 Tighten all wire lugs and check all electrical connections. MEL06
55 Check the floats for excessive dirt and/or grease and clean with water if
necessary.
MEL06
60 Surge Relief Valve: MEL06
70 Check the dashpot piping for oil leaks. MEL06
80 Check oil level in oil reservoir and make sure the level is at the oil fill
port.
MEL06
90 Open the drain plug on the valve body and drain accumulated water. MEL06
6-21
Procedure Tasks Sent: 6/1/2012 9:42:28 AM
Report Criteria
ProcedurePK is Chatata Creek Lift Station Motor
Task No Task Action Procedure ID
Chatata Creek Lift Station Motor
5 Mechanical MEL06-2
10 Operate the pump and insure that it will duty cycle. MEL06-2
20 Cycle all valves to fully closed and open position. MEL06-2
30 Check all controls for proper operation. MEL06-2
40 Check bearings for noise and seals for leakage. MEL06-2
50 Electrical. Record the following readings. MEL06-2
60 Megger MEL06-2
70 Ampere (a) MEL06-2
80 Ampere (b) MEL06-2
90 Ampere (c) MEL06-2
6-22
Procedure Tasks Sent: 6/1/2012 9:48:57 AM
Report Criteria
ProcedurePK is Air Compressor
Task No Task Action Procedure ID
Air Compressor
10 Inspect and tighten mounting bolts. MML06-5
20 Inpect and tighten vee-belts. MML06-5
30 Check pulley retaining screws. MML06-5
40 Inspect oil for contamination and change if necessary. MML06-5
6-23
Procedure Tasks Sent: 6/1/2012 9:59:57 AM
Report Criteria
ProcedurePK is Air Compressor
Task
No Task Action
Procedure
ID
Air Compressor
10 Visually inspect the air compressor for signs of wear and damage. WML06-4
20 Drain the condensate from the drop legs, traps, and the tank in the air
distribution system.
WML06-4
30 Check the oil level and add oil if low. WML06-4
40 Clean or replace air filter. WML06-4
50 Check compressor snd air lines for air leaks. WML06-4
60 Check for unusual noise or vibration. WML06-4
70 Clean the cooling surfaces of the compressor. WML06-4
80 Confirm that the safety guards are in place. WML06-4
90 Manually operate the pressure relief valves to see if they are working. WML06-4
6-24
Procedure Tasks Sent: 6/1/2012 9:52:02 AM
Report Criteria
ProcedurePK is Chatata Creek Lift Station Pump Inspection
Task
No Task Action
Procedure
ID
Chatata Creek Lift Station Pump Inspection
10 Pull the submersible pump, clean, and inspect. SML06
20 Inspect power cable for any signs of abrasion or damage that might affect
the integrity of the outer jacketing.
SML06
30 Inspect impeller and casing wear rings for unusual wear. Replace parts if
required.
SML06
40 Check the dry cavity for liquid. Replace the seals if more than 1 quart of
liquid drains from the cavity.
SML06
50 Change the oil. Check for water in the oil. Refill with 1/2 gallon of a food
grade oil.
SML06
60 Check the condition of the lifting hooks and the chains. SML06
70 Place a 1 in the Reading (Final) Column if the pump needs to be sent for
service otherwise place a 2 in the Reading (Final) Column.
SML06
80 Pump Service SML06
90 Please Record the following information: SML06
100 Manufacturer: SML06
110 Serial #: SML06
120 Model #: SML06
6-25
Procedure Tasks Sent: 6/1/2012 9:58:52 AM
Report Criteria
ProcedurePK is Chatata Creek Strainer Basket
Task
No Task Action
Procedure
ID
Chatata Creek Strainer Basket
10 CAUTION: THIS PM MUST BE DONE WITH A MINIMUM OF
TWO PEOPLE.
WML06-1
20 Pull the strainer basket from the pump pit. WML06-1
30 Remove all material from the basket. WML06-1
40 Clean and inspect basket for damage. WML06-1
50 Install strainer basket back into pump pit. WML06-1
6-26
c. Harrison Pike Wastewater Pumping Station
The mechanical and physical systems at Harrison Pike
wastewater pumping station are inspected monthly as part of the
preventative maintenance program. The procedures utilized in
this preventative maintenance activity and the reports of these
activities are presented on the following forms.
6-27
Procedure Tasks Sent: 6/1/2012 9:44:47 AM
Report Criteria
ProcedurePK is Harrison Pike Lift Station
Task
No Task Action
Procedure
ID
Harrison Pike Lift Station
10 Cycle all valves to fully closed and open position. MEL09
20 Make visual inspection of station and report any unusual conditions. MEL09
30 Clean around station, trim weeds, and pick up trash and any debris. MEL09
40 Check condition of all controls, relays, and starters. MEL09
50 Tighten all wire lugs and check all electrical connections. MEL09
60 Check the floats for excessive dirt and/or grease and clean with water if
necessary.
MEL09
6-28
Procedure Tasks Sent: 6/1/2012 9:45:13 AM
Report Criteria
ProcedurePK is Harrison Pike Lift Station Motor
Task
No Task Action
Procedure
ID
Harrison Pike Lift Station Motor
5 Mechanical MEL09-2
10 Operate the pump and insure that it will duty cycle. MEL09-2
20 Cycle all valves to fully closed and open position. MEL09-2
30 Check all controls for proper operation. MEL09-2
40 Check bearings for noise and seals for leakage. MEL09-2
50 Inspect float switches for any material that might be lodged and
impairing their operation.
MEL09-2
60 Electrical. Record the following readings. MEL09-2
70 Megger MEL09-2
80 Ampere (a) MEL09-2
90 Ampere (b) MEL09-2
100 Ampere (c) MEL09-2
110 Hours MEL09-2
6-29
Procedure Tasks Sent: 6/1/2012 9:36:24 AM
Report Criteria
ProcedurePK is Harrison Pike Lift Station Motor
Task
No Task Action
Procedure
ID
Harrison Pike Lift Station Motor
10 Motor: BAEL09
20 Drain, flush, and refill the seal chamber with new oil. BAEL09
30 Inspect for any signs of water intrusion in the motor seal chamber and seal
cap chamber. On the seal chamber this may be accomplished by inspection
of the oil that was drained. The seal cap chamber should be visually
inspected for moisture.
BAEL09
40 Place a 1 in the Reading (Final) Column if water is found in the casing
otherwise place a 2 in the Reading Final column.
BAEL09
50 Water Present BAEL09
6-30
Procedure Tasks Sent: 6/1/2012 9:53:50 AM
Report Criteria
ProcedurePK is Harrison Pike Lift Station Pump Inspection
Task
No Task Action
Procedure
ID
Harrison Pike Lift Station Pump Inspection
10 Pull the submersible pump, clean, and inspect. SML09
20 Inspect power cable for any signs of abrasion or damage that might affect
the integrity of the outer jacketing.
SML09
30 Inspect impeller and casing wear rings for unusual wear. Replace parts if
required.
SML09
40 Place a 1 in the Reading (Final) Column if the pump needs to be sent for
service otherwise place a 2 in the Reading (Final) Column.
SML09
50 Pump Service SML09
60 Please Record the following information: SML09
80 Serial #: SML09
6-31
Procedure Tasks Sent: 6/1/2012 9:36:48 AM
Report Criteria
ProcedurePK is Lift Station Pump Service Return
Task
No Task Action
Procedure
ID
Lift Station Pump Service Return
10 Pull the pump and notify the Facilities Maintenance Supervisor. BAEL09-1
20 WARNING: PRIOR TO PLACING THE PUMP BACK IN SERVICE
CONFIRM THAT THE LOCKOUT/TAGOUT PROCEDURE IS STILL
IN PLACE.
BAEL09-1
30 Once the pump is ready to be placed back in service place a 2 in the
Reading (Final) Column for the following specification:
BAEL09-1
40 Water Present BAEL09-1
6-32
Procedure Tasks Sent: 6/1/2012 4:03:59 PM
Report Criteria
ProcedurePK is Harrison Pike Lift Station Pump Service
Task
No Task Action
Procedure
ID
Harrison Pike Lift Station Pump Service
10 This PM should be done by a competent service repair shop and should
include the following:
AEL09
20 Completely dismantle the pump and motor. AEL09
30 Clean and inspect all parts. AEL09
40 Inspect all mechanical seal parts. AEL09
50 Replace worn or damaged parts. AEL09
60 Replace ball bearings regardless of condition. AEL09
70 Replace all "O" rings and gaskets. AEL09
80 Inspect motor stator for any sign of abrasion and burned spots on the
winding.
AEL09
6-33
d. Anatole Wastewater Pumping Station
The mechanical and physical systems at Anatole wastewater
pumping station are inspected monthly as part of the
preventative maintenance program. The procedures utilized in
this preventative maintenance activity and the reports of these
activities are presented on the following forms.
6-33
6-34
Procedure Tasks Sent: 6/1/2012 9:37:18 AM
Report Criteria
ProcedurePK is Anatole Lift Station
Task
No Task Action
Procedure
ID
Anatole Lift Station
10 Cycle all valves to fully closed and open position. MEL01
20 Make visual inspection of station and report any unusual conditions. MEL01
30 Clean around station, trim weeds, and pick up trash and any debris. MEL01
40 Check condition of all controls, relays, and starters. MEL01
50 Tighten all wire lugs and check all electrical connections. MEL01
60 Check the floats for excessive dirt and/or grease and clean with water if
necessary.
MEL01
6-35
Procedure Tasks Sent: 6/1/2012 9:37:43 AM
Report Criteria
ProcedurePK is Anatole Lift Station Motor
Task No Task Action Procedure ID
Anatole Lift Station Motor
5 Mechanical MEL01-2
10 Operate the pump and insure that it will duty cycle. MEL01-2
20 Cycle all valves to fully closed and open position. MEL01-2
30 Check all controls for proper operation. MEL01-2
40 Check bearings for noise and seals for leakage. MEL01-2
50 Electrical. Record the following readings. MEL01-2
60 Megger MEL01-2
70 Ampere (a) MEL01-2
80 Ampere (b) MEL01-2
90 Ampere (c) MEL01-2
6-36
Procedure Tasks Sent: 6/1/2012 9:50:26 AM
Report Criteria
ProcedurePK is Anatole Lift Station Pump Inspection
Task
No Task Action
Procedure
ID
Anatole Lift Station Pump Inspection
10 Pull the submersible pump, clean, and inspect. SML01
20 Inspect power cable for any signs of abrasion or damage that might affect
the integrity of the outer jacketing.
SML01
30 Inspect impeller and casing wear rings for unusual wear. Replace parts if
required.
SML01
40 Place a 1 in the Reading (Final) Column if the pump needs to be sent for
service otherwise place a 2 in the Reading (Final) Column.
SML01
50 Pump Service SML01
60 Please record the following information: SML01
70 Manufacturer: SML01
80 Serial #: SML01
90 Model #: SML01
6-37
e. South Industrial Park Wastewater Pumping Station
The mechanical and physical systems at the South Industrial Park
wastewater pumping station are inspected monthly as part of the
preventative maintenance program. The procedures utilized in
this preventative maintenance activity and the reports of these
activities are presented on the following forms.
6-38
Procedure Tasks Sent: 6/1/2012 9:46:23 AM
Report Criteria
ProcedurePK is South Industrial Lift Station
Task
No Task Action
Procedure
ID
South Industrial Lift Station
10 Cycle all valves to fully closed and open position. MEL12
20 Make visual inspection of station and report any unusual conditions. MEL12
30 Clean around station, trim weeds, and pick up trash. Walk the perimeter
of the fence making sure to remove all leaves and debris.
MEL12
40 Check condition of all controls, relays, and starters. MEL12
50 Tighten all wire lugs and check all electrical connections. MEL12
60 Check the floats for excessive dirt and/or grease and clean with water if
necessary.
MEL12
6-39
Procedure Tasks Sent: 6/1/2012 9:46:55 AM
Report Criteria
ProcedurePK is South Industrial Lift Station Motor
Task No Task Action Procedure ID
South Industrial Lift Station Motor
5 Mechanical MEL12-2
10 Operate the pump and insure that it will duty cycle. MEL12-2
20 Cycle all valves to fully closed and open position. MEL12-2
30 Check all controls for proper operation. MEL12-2
40 Check bearings for noise and seals for leakage. MEL12-2
50 Electrical. Record the following readings. MEL12-2
60 Megger MEL12-2
70 Ampere (a) MEL12-2
80 Ampere (b) MEL12-2
90 Ampere (c) MEL12-2
100 Hours MEL12-2
6-40
Procedure Tasks Sent: 6/1/2012 9:55:00 AM
Report Criteria
ProcedurePK is South Industrial Lift Station Pump Inspection
Task
No Task Action
Procedure
ID
South Industrial Lift Station Pump Inspection
10 Pull the submersible pump, clean, and inspect. SML12
20 Inspect power cable for any signs of abrasion or damage that might affect
the integrity of the outer jacketing.
SML12
30 Inspect impeller and casing wear rings for unusual wear. Replace parts if
required.
SML12
40 Place a 1 in the Reading (Final) Column if the pump needs to be sent for
service otherwise place a 2 in the Reading (Final) Column.
SML12
50 Pump Service SML12
6-41
f. Boyd Street Wastewater Pumping Station
The mechanical and physical systems at Boyd Street wastewater
pumping station are inspected monthly as part of the
preventative maintenance program. The procedures utilized in
this preventative maintenance activity and the reports of these
activities are presented on the following forms.
6-42
Procedure Tasks Sent: 6/1/2012 9:39:09 AM
Report Criteria
ProcedurePK is Boyd Street Lift Station
Task
No Task Action
Procedure
ID
Boyd Street Lift Station
10 Cycle all valves to fully closed and open position. MEL03
20 Make visual inspection of station and report any unusual conditions. MEL03
30 Clean around station, trim weeds, and pick up trash and any debris. MEL03
40 Check condition of all controls, relays, and starters. MEL03
50 Tighten all wire lugs and check all electrical connections. MEL03
60 Check the floats for excessive dirt and/or grease and clean with water if
necessary.
MEL03
6-43
Procedure Tasks Sent: 6/1/2012 9:39:34 AM
Report Criteria
ProcedurePK is Boyd Street Lift Station Motor
Task
No Task Action
Procedure
ID
Boyd Street Lift Station Motor
5 Mechanical MEL03-2
10 Operate the pump and insure that it will duty cycle. MEL03-2
20 Cycle all valves to fully closed and open position. MEL03-2
30 Check all controls for proper operation. MEL03-2
40 Check bearings for noise and seals for leakage. MEL03-2
45 Supplement the flow by using a water hose to fill the wet well. NOTE:
Make sure to leave an air gap between the hose and the level in the wet well
to prevent backflow. Make sure pumps alternate from lead to lag between
cycles.
MEL03-2
50 Electrical. Record the following readings. MEL03-2
60 Megger MEL03-2
70 Ampere (a) MEL03-2
80 Ampere (b) MEL03-2
90 Ampere (c) MEL03-2
100 Hours MEL03-2
6-44
Procedure Tasks Sent: 6/1/2012 9:51:13 AM
Report Criteria
ProcedurePK is Boyd Street Lift Station Pump Inspection
Task
No Task Action
Procedure
ID
Boyd Street Lift Station Pump Inspection
10 Pull submersible pump, clean, and inspect. SML03
20 Inspect power cable for any signs of abrasion or damage that might affect
the integrity of the outer jacketing.
SML03
30 Inspect impeller and casing wear rings for unusual wear. Replace parts if
required.
SML03
40 Place a 1 in the Reading (Final) Column if the pump needs to be sent for
service otherwise place a 2 in the Reading (Final) Column.
SML03
50 Pump Service SML03
6-45
g. Breckenridge Wastewater Pumping Station
The mechanical and physical systems at Breckenridge
wastewater pumping station are inspected monthly as part of the
preventative maintenance program. The procedures utilized in
this preventative maintenance activity and the reports of these
activities are presented on the following forms.
6-46
Procedure Tasks Sent: 6/1/2012 9:40:00 AM
Report Criteria
ProcedurePK is Breckenridge Lift Station
Task
No Task Action
Procedure
ID
Breckenridge Lift Station
10 Cycle all valves to fully closed and open position. MEL04
20 Make visual inspection of station and report any unusual conditions and
any debris.
MEL04
30 Clean around station, trim weeds, and pick up trash. MEL04
40 Check condition of all controls, relays, and starters. MEL04
50 Tighten all wire lugs and check all electrical connections. MEL04
60 Check the floats for excessive dirt and/or grease and clean with water if
necessary.
MEL04
6-47
Procedure Tasks Sent: 6/1/2012 9:40:27 AM
Report Criteria
ProcedurePK is Breckenridge Lift Station Motor
Task
No Task Action
Procedure
ID
Breckenridge Lift Station Motor
5 Mechanical MEL04-2
10 Operate the pump and insure that it will duty cycle. MEL04-2
20 Cycle all valves to fully closed and open position. MEL04-2
30 Check all controls for proper operation. MEL04-2
40 Check bearings for noise and seals for leakage. MEL04-2
45 Supplement the flow by using a water hose to fill the wet well. NOTE:
Make sure to leave an air gap between the hose and the level in the wet well
to prevent backflow. Make sure pumps alternate from lead to lag between
cycles.
MEL04-2
50 Electrical. Record the following readings. MEL04-2
60 Megger MEL04-2
70 Ampere (a) MEL04-2
80 Ampere (b) MEL04-2
90 Ampere (c) MEL04-2
100 Vibration A MEL04-2
110 Vibration B MEL04-2
6-48
h. East Cleveland Wastewater Pumping Station
The mechanical and physical systems at East Cleveland
wastewater pumping station are inspected monthly as part of the
preventative maintenance program. The procedures utilized in
this preventative maintenance activity and the reports of these
activities are presented on the following forms.
6-49
Procedure Tasks Sent: 6/1/2012 9:42:53 AM
Report Criteria
ProcedurePK is East Cleveland Lift Station
Task
No Task Action
Procedure
ID
East Cleveland Lift Station
10 Cycle all valves to fully closed and open position. MEL07
20 Make visual inspection of station and report any unusual conditions. MEL07
30 Clean around station, trim weeds, and pick up trash. Walk the perimeter
of the fence making sure to remove all leaves and debris.
MEL07
40 Check condition of all controls, relays, and starters. MEL07
50 Tighten all wire lugs and check all electrical connections. MEL07
60 Check the floats for excessive dirt and/or grease and clean with water if
necessary.
MEL07
6-50
Procedure Tasks Sent: 6/1/2012 9:43:19 AM
Report Criteria
ProcedurePK is East Cleveland Lift Station Motor
Task
No Task Action
Procedure
ID
East Cleveland Lift Station Motor
5 Mechanical MEL07-2
10 Operate the pump and insure that it will duty cycle. MEL07-2
20 Cycle all valves to fully closed and open position. MEL07-2
30 Check all controls for proper operation. MEL07-2
40 Check bearings for noise and seals for leakage. MEL07-2
45 Supplement the flow by using a water hose to fill the wet well. NOTE:
Make sure to leave an air gap between the hose and the level in the wet well
to prevent backflow. Make sure pumps alternate from lead to lag between
cycles.
MEL07-2
50 Electrical. Record the following readings. MEL07-2
60 Megger MEL07-2
70 Ampere (a) MEL07-2
80 Ampere (b) MEL07-2
90 Ampere (c) MEL07-2
100 Hours MEL07-2
6-51
Procedure Tasks Sent: 6/1/2012 9:53:04 AM
Report Criteria
ProcedurePK is East Cleveland Lift Station Pump Inspection
Task
No Task Action
Procedure
ID
East Cleveland Lift Station Pump Inspection
10 Pull the submersible pump, clean, and inspect. SML07
20 Inspect power cable for any signs of abrasion or damage that might affect
the integrity of the outer jacketing.
SML07
30 Inspect impeller and casing wear rings for unusual wear. Replace parts if
required.
SML07
40 Place a 1 in the Reading (Final) Column if the pump needs to be sent for
service otherwise place a 2 in the Reading (Final) Column.
SML07
50 Pump Service SML07
60 Please Record the following information: SML07
70 Serial #: SML07
80 Model #: SML07
6-52
i. Park Terrace Wastewater Pumping Station
The mechanical and physical systems at Park Terrace wastewater
pumping station are inspected monthly as part of the
preventative maintenance program. The procedures utilized in
this preventative maintenance activity and the reports of these
activities are presented on the following forms.
6-53
Procedure Tasks Sent: 6/1/2012 9:45:38 AM
Report Criteria
ProcedurePK is Park Terrace Lift Station
Task
No Task Action
Procedure
ID
Park Terrace Lift Station
10 Cycle all valves to fully closed and open position. MEL10
20 Make visual inspection of station and report any unusual conditions. MEL10
30 Clean around station, trim weeds, and pick up trash. Walk the perimeter
of the fence making sure to remove all leaves and debris.
MEL10
40 Check condition of all controls, relays, and starters. MEL10
50 Tighten all wire lugs and check all electrical connections. MEL10
60 Check the floats for excessive dirt and/or grease and clean with water if
necessary.
MEL10
6-54
Procedure Tasks Sent: 6/1/2012 9:46:01 AM
Report Criteria
ProcedurePK is Park Terrace Lift Station Motor
Task
No Task Action
Procedure
ID
Park Terrace Lift Station Motor
5 Mechanical MEL10-2
10 Operate the pump and insure that it will duty cycle. MEL10-2
20 Cycle all valves to fully closed and open position. MEL10-2
30 Check all controls for proper operation. MEL10-2
40 Check bearings for noise and seals for leakage. MEL10-2
45 Supplement the flow by using a water hose to fill the wet well. NOTE:
Make sure to leave an air gap between the hose and the level in the wet well
to prevent backflow. Make sure pumps alternate from lead to lag between
cycles.
MEL10-2
50 Electrical. Record the following readings. MEL10-2
60 Megger MEL10-2
70 Ampere (a) MEL10-2
80 Ampere (b) MEL10-2
90 Ampere (c) MEL10-2
100 Hours MEL10-2
6-55
Procedure Tasks Sent: 6/1/2012 9:54:36 AM
Report Criteria
ProcedurePK is Park Terrace Lift Station Pump Inspection
Task
No Task Action
Procedure
ID
Park Terrace Lift Station Pump Inspection
10 Pull the submersible pump, clean, and inspect. SML10
20 Inspect power cable for any signs of abrasion or damage that might affect
the integrity of the outer jacketing.
SML10
30 Inspect impeller and casing wear rings for unusual wear. Replace parts if
required.
SML10
40 Place a 1 in the Reading (Final) Column if the pump needs to be sent for
service otherwise place a 2 in the Reading (Final) Column.
SML10
50 Pump Service SML10
6-56
j. Gaut Street Wastewater Pumping Station
The mechanical and physical systems at Gaut Street wastewater
pumping station are inspected monthly as part of the
preventative maintenance program. The procedures utilized in
this preventative maintenance activity and the reports of these
activities are presented on the following forms.
6-57
Procedure Tasks Sent: 6/1/2012 9:43:40 AM
Report Criteria
ProcedurePK is Gaut Street Lift Station
Task
No Task Action
Procedure
ID
Gaut Street Lift Station
10 Cycle all valves to fully closed and open position. MEL08
20 Make visual inspection of station and report any unusual conditions. MEL08
30 Clean around station, trim weeds, and pick up trash. Walk the perimeter
of the fence making sure to remove all leaves and debris.
MEL08
40 Check condition of all controls, relays, and starters. MEL08
50 Tighten all wire lugs and check all electrical connections. MEL08
60 Check the floats for excessive dirt and/or grease and clean with water if
necessary.
MEL08
6-58
Procedure Tasks Sent: 6/1/2012 9:44:20 AM
Report Criteria
ProcedurePK is Gaut Street Lift Station Motor
Task No Task Action Procedure ID
Gaut Street Lift Station Motor
5 Mechanical MEL08-2
10 Operate the pump and insure that it will duty cycle. MEL08-2
20 Cycle all valves to fully closed and open position. MEL08-2
30 Check all controls for proper operation. MEL08-2
40 Check bearings for noise and seals for leakage. MEL08-2
50 Electrical. Record the following readings. MEL08-2
60 Megger MEL08-2
70 Ampere (a) MEL08-2
80 Ampere (b) MEL08-2
90 Ampere (c) MEL08-2
100 Hours MEL08-2
6-59
Procedure Tasks Sent: 6/1/2012 9:53:27 AM
Report Criteria
ProcedurePK is Gaut Street Lift Station Pump Inspection
Task
No Task Action
Procedure
ID
Gaut Street Lift Station Pump Inspection
10 Pull the submersible pump, clean, and inspect. SML08
20 Inspect power cable for any signs of abrasion or damage that might affect
the integrity of the outer jacketing.
SML08
30 Inspect impeller and casing wear rings for unusual wear. Replace parts if
required.
SML08
40 Place a 1 in the Reading (Final) Column if the pump needs to be sent for
service otherwise place a 2 in the Reading (Final) Column.
SML08
50 Pump Service SML08
6-60
k. Baldwin Street Wastewater Pumping Station
The mechanical and physical systems at Baldwin Street
wastewater pumping station are inspected monthly as part of the
preventative maintenance program. The procedures utilized in
this preventative maintenance activity and the reports of these
activities are presented on the following forms.
6-61
Procedure Tasks Sent: 6/1/2012 9:38:14 AM
Report Criteria
ProcedurePK is Baldwin Street Lift Station
Task
No Task Action
Procedure
ID
Baldwin Street Lift Station
10 Cycle all valves to fully closed and open position. MEL02
20 Make visual inspection of station and report any unusual conditions. MEL02
30 Clean around station, trim weeds, and pick up trash. Walk the perimeter
of the fence making sure to remove all leaves and debris.
MEL02
40 Check condition of all controls, relays, and starters. MEL02
50 Tighten all wire lugs and check all electrical connections. MEL02
60 Check the floats for excessive dirt and/or grease and clean with water if
necessary.
MEL02
6-62
Procedure Tasks Sent: 6/1/2012 9:38:45 AM
Report Criteria
ProcedurePK is Baldwin Street Lift Station Motor
Task No Task Action Procedure ID
Baldwin Street Lift Station Motor
5 Mechanical MEL02-2
10 Operate the pump and insure that it will duty cycle. MEL02-2
20 Cycle all valves to fully closed and open position. MEL02-2
30 Check all controls for proper operation. MEL02-2
40 Check bearings for noise and seals for leakage. MEL02-2
50 Electrical. Record the following readings. MEL02-2
60 Megger MEL02-2
70 Ampere (a) MEL02-2
80 Ampere (b) MEL02-2
90 Ampere (c) MEL02-2
100 Hours MEL02-2
6-63
Procedure Tasks Sent: 6/1/2012 9:50:51 AM
Report Criteria
ProcedurePK is Baldwin Street Lift Station Pump Inspection
Task
No Task Action
Procedure
ID
Baldwin Street Lift Station Pump Inspection
10 Pull the submersible pump, clean, and inspect. SML02
20 Inspect power cable for any signs of abrasion or damage that might affect
the integrity of the outer jacketing.
SML02
30 Inspect impeller and casing wear rings for unusual wear. Replace parts if
required.
SML02
40 Place a 1 in the Reading (Final) Column if the pump needs to be sent for
service otherwise place a 2 in the Reading (Final) Column.
SML02
50 Pump Service SML02
60 Please Record the following information: SML02
70 Manufacturer: SML02
80 Serial #: SML02
90 Model #: SML02
6-64
l. Timbercreek Wastewater Pumping Station
The mechanical and physical systems at Timbercreek wastewater
pumping station are inspected monthly as part of the
preventative maintenance program. The procedures utilized in
this preventative maintenance activity and the reports of these
activities are presented on the following forms.
6-65
Procedure Tasks Sent: 6/1/2012 9:47:23 AM
Report Criteria
ProcedurePK is Timber Creek Lift Station
Task
No Task Action
Procedure
ID
Timber Creek Lift Station
10 Cycle all valves to fully closed and open position. MEL13
20 Make visual inspection of station and report any unusual conditions. MEL13
30 Clean around station, trim weeds, and pick up trash. Walk the perimeter
of the fence making sure to remove all leaves and debris.
MEL13
40 Check condition of all controls, relays, and starters. MEL13
50 Tighten all wire lugs and check all electrical connections. MEL13
60 Check the floats for excessive dirt and/or grease and clean with water if
necessary.
MEL13
6-66
Procedure Tasks Sent: 6/1/2012 9:55:26 AM
Report Criteria
ProcedurePK is Timber Creek Lift Station Pump Inspection
Task
No Task Action
Procedure
ID
Timber Creek Lift Station Pump Inspection
10 Pull the submersible pump, clean, and inspect. SML13
20 Inspect power cable for any signs of abrasion or damage that might affect
the integrity of the outer jacketing.
SML13
30 Inspect impeller and casing wear rings for unusual wear. Replace parts if
required.
SML13
40 Place a 1 in the Reading (Final) Column if the pump needs to be sent for
service otherwise place a 2 in the Reading (Final) Column.
SML13
50 Pump Service SML13
6-67
Procedure Tasks Sent: 6/1/2012 9:47:50 AM
Report Criteria
ProcedurePK is Timber Creek Lift Station Motor
Task
No Task Action
Procedure
ID
Timber Creek Lift Station Motor
5 Mechanical MEL13-2
10 Operate the pump and insure that it will duty cycle. MEL13-2
20 Cycle all valves to fully closed and open position. MEL13-2
30 Check all controls for proper operation. MEL13-2
40 Check bearings for noise and seals for leakage. MEL13-2
45 Supplement the flow by using a water hose to fill the wet well. NOTE:
Make sure to leave an air gap between the hose and the level in the wet well
to prevent backflow. Make sure pumps alternate from lead to lag between
cycles.
MEL13-2
50 Electrical. Record the following readings. MEL13-2
60 Megger MEL13-2
70 Ampere (a) MEL13-2
80 Ampere (b) MEL13-2
90 Ampere (c) MEL13-2
100 Hours MEL13-2
6-68
C. Fats, Oils and Grease Control Program
1. Overview
Fats, oil and grease are a prohibited discharge and are monitored under
Cleveland Utilities Pretreatment Program. Periodic review of applications for
sewer service and coordination with the plumbing inspector are used to update
facilities requiring inspection within Cleveland Utilities wastewater service area.
The current number of facilities identified in the inspection program is 177.
These facilities are routinely inspected for compliance with the program and
additional inspections are performed on an as-needed basis. Larger facilities are
inspected about every six months, while smaller facilities may be inspected a
minimum of once a year.
2. Policy
Disposal of oil by discharge to the wastewater collection system is prohibited
under the City of Cleveland Sewer Use Ordinance at Section 18-107. Oils include
automotive lubricating oils, transmission oils, transmission and brake fluid,
other industrial oils, and vegetable oils used in a restaurant or food processing
facility.
Cleveland Utilities contacts all wastewater discharge permit holders,
restaurants, service stations, septic tank pumpers, commercial food processors,
oil tank firms and transporters, and others, as appropriate, by letter as often as
needed to advise them of requirements for oil and grease discharge control.
These dischargers are also informed of approved oil and grease disposal options
available in the Cleveland vicinity. The dischargers of oil and grease waste are
required to provide an equivalent primary treatment based on gravity
separation of visible and floating oil and grease and oil and grease sludge from
wastewater discharges. Such pretreatment processes are subject to the best
management practices as required by Section 18-107 (8f) of the City of
Cleveland Sewer Use Ordinance and approval by Cleveland Utilities. Discharges
are subject to monitoring, entry, inspection, reporting and other requirements
as determined by Cleveland Utilities at its discretion. These discharges may be
required by Cleveland Utilities to apply for industrial waste discharge permits if
Cleveland Utilities determines that the dischargers are a source of prohibited
pollutants, toxic pollutants in toxic amounts, or are otherwise controlled by
federal or state regulations. All dischargers of oil or grease are subject to all
6-69
enforcement and penalty provisions of the City of Cleveland Sewer Use
Ordinance.
3. Procedure
All identified restaurants are required to keep a log of service to grease traps.
This log should contain the date of pumping or cleaning, who conducted the
service and where the material was disposed. These records are reviewed on a
routine inspection schedule. Service is required to be performed on an annual,
semi-annual, quarterly or monthly schedule dependent upon loading conditions
at each location. Service frequencies are required to be increased on a site-
specific basis. This is determined by gravity sewer pipeline inspections and
response to any gravity sewer pipeline stoppages.
4. Responsible Personnel
Currently, the Pretreatment Program is managed by the Environmental and
Regulatory Compliance (ERC) supervisor and is responsible for all aspects of the
pretreatment program including the Fats, Oils and Grease (FOG) Control
Program. The FOG pretreatment coordinator conducts all field sampling and
inspection and recordkeeping activities.
D. Air Valve Preventative Maintenance Program
The air release valves installed on the force main pipelines are inspected as part of
the preventative maintenance program. The procedures utilized in these
preventative maintenance activities are presented on the following forms.
6-70
Procedure Tasks Sent: 6/1/2012 9:52:45 AM
Report Criteria
ProcedurePK is Chatata Creek Air Relief Valve
Task
No Task Action
Procedure
ID
Chatata Creek Air Relief Valve
10 This procedure is for the ARI Air Relief Valve. All other valves should
be back-flushed with water.
SML06-2
20 Shut the isolating valve underneath the air valve. SML06-2
30 Open pressure relief valve and make sure that internal pressure is
released.
SML06-2
40 Open all four screws (22) on the top cover of the air valve. SML06-2
50 Pull out the mechanism (together with the cover)( 1-15 + 17). Rinse it
and the inner part of the body.
SML06-2
60 Reassemble back and tighten the screws. Pay attention to correct
placement of the seal's O-ring.
SML06-2
70 Close the relief valve and re-open the isolating valve. SML06-2
80 Please provide the following information: SML06-2
90 Serial # SML06-2
6-71
Procedure Tasks Sent: 6/1/2012 9:54:13 AM
Report Criteria
ProcedurePK is Harrison Pike Air Relief Valve
Task
No Task Action
Procedure
ID
Harrison Pike Air Relief Valve
10 This procedure is for the ARI Air Relief Valve. All other valves should
be back-flushed with water.
SML09-2
20 Shut the isolating valve underneath the air valve. SML09-2
30 Open pressure relief valve and make sure that internal pressure is
released.
SML09-2
40 Open all four screws (22) on the top cover of the air valve. SML09-2
50 Pull out the mechanism (together with the cover)( 1-15 + 17). Rinse it
and the inner part of the body.
SML09-2
60 Reassemble back and tighten the screws. Pay attention to correct
placement of the seal's O-ring.
SML09-2
70 Close the relief valve and re-open the isolating valve. SML09-2
80 Please provide the following information: SML09-2
90 Serial # SML09-2
6-72
Procedure Tasks Sent: 6/1/2012 9:49:38 AM
Report Criteria
ProcedurePK is Air Relief Valve
Task
No Task Action
Procedure
ID
Air Relief Valve
10 Check air release valve for any leaks or overflows. QML04
20 Shut off the inlet valve. QML04
30 Open the blow off valve and observe. If fluid drains out of the valve
body rapidly, flushing is not required.
QML04
40 Should heavy suspended solids and grease be anticipated the valve
should be flushed.
QML04
6-73
Section 7
Wastewater Collection System Corrective Maintenance Procedures
A. Complaint Management Program
1. Purpose
There are two purposes for maintaining a Complaint Management Program. The first
is to properly track and resolve customers’ complaints so service is improved. The
second is to acquire information for locating problems areas within the wastewater
collection system.
2. Scope
This program provides information for the identification, prioritization and
implementation of procedures for wastewater system rehabilitation actions to assist
in determining drainage basins that are experiencing capacity problems.
3. Method
When a complaint is received, the information is incorporated into a service order.
The service order is provided to the Wastewater Collections Supervisor or the after-
hours personnel for investigation and resolution of the complaint.
If it’s determined the Cleveland Utilities wastewater collection system is the cause of
the problem, the pipeline is inspected by CCTV within 24 hours. If the complaint
involves a sewer overflow, the Dry Weather Sanitary Sewer Overflow Response Plan
is implemented.
Upon completion of the work and resolution of the complaint, the completed
service order is provided to the Wastewater Collections Supervisor or the after-
hours supervisor.
4. Records and Recordkeeping
The service order is generated once the complaint is received. The completed
service order is provided to the Wastewater Collections Supervisor or the after-
hours supervisor. The administrative personnel will close out the service order in the
Service Order Database. The Service Order Database is connected to the GIS
mapping database and the completed service order will then be tied to the
complaint location.
7-1
This information will be available to the SCOPE-10 manager for follow-up, if
necessary, and inclusion into the Maintenance Program on a regular basis.
B. Corrective Maintenance Program
1. Pumping Station Repairs
a. Purpose
Repairs, or unscheduled maintenance, to wastewater pumping stations is
administered at Cleveland Utilities as part of the Maintenance Connection
program. The Maintenance Connection program will manage and track all
repairs made to the wastewater pumping stations.
b. Scope
Through the Maintenance Connection program work orders are generated and
the program compiles information on unscheduled repairs to wastewater
pumping stations.
c. Resources Needed
A maintenance crew is available at all hours and during weekends to respond to
emergency calls for repairs. In addition, all the tools and equipment that are
normally used by the field maintenance crews must be made available to them
at all hours of the day.
d. Performance Measures
Performances measures for corrective maintenance are focused on the time of
response and the time of completion of repairs of identified problems.
Generally, response to emergency reports and repair or correction will be
performed as soon as possible. For problems such as overflows, a reasonable
response to complaints is within one hour. Dry weather overflows should be
mitigated within 24 to 48 hours. Reasonable time to mitigate wet weather
overflows is dependent upon the problem and location.
e. Records and Recordkeeping
The Maintenance Connection program comprises the main part of the
Maintenance Programs information management system. Summary reports
from the Maintenance Connection program are sent to the Facilities
Maintenance Supervisor for review.
7-2
2. Dry Weather Sanitary Sewer Overflow Response Plan
a. Purpose
The purpose of the Dry Weather Sewer Overflow Response Plan is to:
1. Establish procedures to minimize public health impacts when a sanitary sewer
overflow discharges during dry weather.
2. Establish a plan of action to be taken when a sanitary sewer overflow
discharges during dry weather.
3. Establish procedures for notification of potentially affected private owners
when a sanitary sewer overflow discharges during dry weather.
4. Establish procedures for notification to the public when a sanitary sewer
overflow discharges during dry weather.
5. Establish procedures for notification of downstream users when sanitary
sewers overflow into waters of the State of Tennessee during dry weather.
b. Procedures to Minimize Public Health Impacts of Dry Weather Sanitary Sewer
Overflows
If a sanitary sewer overflow (SSO) occurs during dry weather, the Wastewater
Collections Supervisor, ERC supervisor and SCOPE-10 manager will evaluate the
SSO discharge to determine if a public health risk due to the SSO discharge
exists. This evaluation will include consideration of the following factors:
1. Location of the Discharge
2. Potential for human contact
3. The nature of the receiving waters
4. Pollutants in the discharge
The SSO discharge will be considered to present a public health risk and actions
must be taken immediately to stop the SSO discharge if a SSO:
1. Discharges to areas with a reasonable potential for human contact.
2. Discharges to sensitive waters or high exposure areas
3. Creates identifiable environmental impact, such as a fish kill.
In interpreting the conditions described for which a SSO discharge during dry
weather will be considered a public health risk, Wastewater Collections
Supervisor, ERC supervisor and SCOPE-10 manager will consider that “sensitive
7-3
waters”, include public drinking water intakes and their designated protection
areas, swimming beaches and waters where swimming occurs, shellfish beds,
designated Outstanding National Resources Waters, National Marine Sanctuaries,
waters with federal, state and local parks, and waters containing threatened or
endangered species and their habitat; and the “high exposure areas” include
sewage backups into buildings and sewer releases to other areas with a high
potential for human contact. The only “sensitive waters” known to exist within
the City of Cleveland sanitary sewer service area are South Mouse Creek within
Tinsley Park, and unnamed tributary of South Mouse Creek in Deer Park,
Candies Creek in Fletcher Park and South Mouse Creek in the Cleveland/Bradley
County Greenway.
If a public health risk is identified on the basis of the hereinbefore described
evaluation procedure the Wastewater Collections Supervisor, ERC supervisor or
SCOPE-10 manager will immediately implement one of the following short-term
remediation activities:
1. Clean the segments of the sanitary sewer pipeline draining to the SSO
discharge location, in order to stop the SSO discharge, utilizing hydraulic
cleaning techniques or mechanical cleaning techniques followed by CCTV
inspection of the cleaned segments of the sanitary sewer pipeline to identify
and further maintenance needs in these segments to prevent recurring SSO
discharges.
2. Re-route wastewater flow from a manhole upstream from the SSO discharge
to a manhole downstream of the SSO discharge utilizing a bypass pumping
system so as to conduct an inspection of the affected segments of the sanitary
sewer system pipeline by CCTV inspection to identify the cause of the SSO
discharge, and take the required action to repair the defect to alleviate the
SSO discharge and prevent future discharges at that location.
3. Repair or replace inoperative pumps and wastewater pumping stations that
fail and cause SSO discharges upstream from the wastewater pumping station
or at the wetwell.
7-4
c. Plan of Action to Dry Weather Sanitary Sewer Overflow Discharges Onto Streets
If a SSO discharges onto a street, the Wastewater Collections Supervisor, ERC
supervisor or SCOPE-10 manager will immediately implement one of the
following short-term remediation activities:
1. Clean the segments of the sanitary sewer pipeline draining to the SSO
discharge location, in order to stop the SSO discharge, utilizing hydraulic
cleaning techniques or mechanical cleaning techniques followed by CCTV
inspection of the cleaned segments of the sanitary sewer pipeline to identify
and further maintenance needs in these segments to prevent recurring SSO
discharges.
2. Re-route wastewater flow from a manhole upstream from the SSO discharge
to a manhole downstream of the SSO discharge utilizing a bypass pumping
system so as to conduct an inspection of the affected segments of the
sanitary sewer system pipeline by CCTV inspection to identify the cause of
the SSO discharge, and take the required action to repair the defect to
alleviate the SSO discharge and prevent future discharges at that location.
3. Repair or replace inoperative pumps and wastewater pumping stations that
fail and cause SSO discharges upstream from the wastewater pumping
station or at the wetwell.
After the SSO discharge has stopped the Wastewater Collections Supervisor will
implement clean-up activities which shall include removing any pooled sanitary
sewage using a wet-vacuum device, rinsing the street with potable water and
spraying the area with a solution containing a high concentration of chlorine.
d. Notification Procedures Following Discovery of a Dry Weather Sanitary Sewer
Overflow
1. Notification of Potentially Affected Private Property Owners
After the discovery of a SSO discharge, the Wastewater Collections
Supervisor or field personnel, will attempt to verbally contact residents or
building occupants on private property where the SSO discharge has or
could drain. This verbal notification, along with a description of the SSO, the
tentative plan action to stop the SSO discharge and the schedule to
7-5
accomplish this plan, the plan to clean the affected area afterwards and a
warning not to come in contact with the liquid discharging from the SSO. In
the event the Wastewater Collections Supervisor or field personnel cannot
make the verbal notification, the information shall be provided in a written
form, along with a name and telephone number to contact with any
questions, as soon as possible and post this written notification on the front
door of the residence or building occupying the affected property.
2. Notification of Public of Potential Health Risk
After the discovery of a dry weather SSO and if it is determined the dry
weather SSO can enter a water of the State (e.g. South Mouse Creek,
Fillauer Branch, Lick Branch, Bigsby Creek, Candies Creek, or Little Chatata
Creek), and will continue for more than 12 hours, the Vice-President of
Water and Wastewater will be notified. After consultation with the CEO, a
public service announcement will be provided to all local radio stations
identifying the location of the SSO discharge, a description of the SSO
discharge, a list of the waters of the state the SSO could enter, a warning
not to use these waters for recreation, livestock watering or irrigation until
further notice from Cleveland Utilities, and the tentative plan of action to
stop the SSO discharge and the schedule to accomplish this plan of action.
Signs shall also be posted at places where the public could gain access to the
affected waters of the State and leave these signs in place until samples
collected from the affected waters of the State reflect the following
characteristics:
• pH values between 6.0 and 9.0 units
• a concentration of the E. coli group not exceeding 126 colony
forming units per 100 ml, as a geometric mean based on five
samples collected at intervals of not less than 12 hours
7-6
Section 8
Wastewater Collection System Maintenance of Rights-of-Way and
Easement Program
A. Maintenance of Rights-of-way and Easement Procedures
1. Purpose
The purpose of maintaining rights-of-way and easements of the wastewater
collection system is to assure that Cleveland Utilities will have unimpeded access to
every part of the wastewater collection system for routine evaluations, preventative
maintenance, repairs and rehabilitation. Where sewer pipelines are installed across
unimproved land, Cleveland Utilities should obtain easements with provisions for
access and egress along the pipeline route sufficient to allow maintenance vehicle
traffic. Cleveland Utilities will then assure access to these easements is maintained
and kept clear of weeds, brush and trees.
2. Scope
This program relies on the findings of the field investigation programs, such as
smoke testing, manhole inspection and CCTV inspection, to locate those areas
where access to sewer pipeline routes has become limited. The SCOPE-10 manager
or Wastewater Collections Supervisor may determine that a right-of-way or
easement requires clearing and may notify maintenance personnel, a clearing
contractor or the property owner to do so.
During new construction, temporary and permanent easements should be carefully
considered for adequate width, paying attention to the possibility of development
and potential additions to buildings, particularly commercial and government
buildings.
3. Resources Needed
The observations of field personnel are important for identifying areas that are in
need of clearing. During manhole inspection or CCTV inspection field crews should
note any areas where trees or brush are obstructing clear access to all segments of
the wastewater collection system. These are noted and entered into a database for
scheduled clearing.
8-1
4. Performance Measures
A reasonable indicator of performance is to have completed the maintenance of at
least 50 percent of the rights-of-way and easements reported as needed clearing
annually.
5. Reporting and Recordkeeping
This program utilizes the findings of field investigations to identify areas in need of
clearing and accumulates this data in a database. The database will generate work
orders for clearing.
B. Street Paving Monitoring Program
1. Purpose
The purpose of monitoring street paving activities is to assist in the planning of
maintenance work on manholes and sewer system rehabilitation. When paving is
being performed over gravity sewer pipelines, the elevations of manhole rings may
need to be adjusted by the addition of riser rings so the manhole covers remain on-
grade and do not create traffic issues.
2. Scope
This program uses an annual scheduling of paving by the City of Cleveland and the
Bradley County Road Department each year. Prior to beginning any resurfacing in
the Cleveland Utilities wastewater service area, the City of Cleveland and the
Bradley County Road Department shall be contacted to confirm the type of work
being performed.
3. Resources Needed
The City of Cleveland and the Bradley County Road Department’s annual schedule
for resurfacing along with periodic updates concerning scheduling. These updates
are communicated to the Wastewater Collections Supervisor for adjustments to
manholes.
4. Performance Measures
The measure of performance for this program should be that Cleveland Utilities is
informed of paving work planned by the City of Cleveland and the Bradley County
Road Department. A reasonable goal is to have field crews scheduled to adjust
manhole elevations as necessary to meet new pavement elevations.
8-2
5. Reporting and Recordkeeping
The City of Cleveland and the Bradley County Road Department typically provide an
annual paving list of streets scheduled for paving. After any necessary adjustments
are completed the Wastewater Collections Supervisor shall be notified that work has
been completed.
8-3
Section 9
Wastewater Collection System Components Inventory Management
Procedures
A. “As-Built” Plans Maintenance
“As-Built” plans are developed for all extension and improvements in the wastewater
collection system. Printed copies of these plans are filed in the project files in the
Engineering Department and are indexed by name and project number. Plans are
scanned into a digital format and are archived in the Cleveland Utilities computer
system.
B. Equipment and Supplies
1. Spare Parts Inventory
Spare parts and supply inventories are purchased and maintained by the Storeroom
Manager.
2. Equipment and Tools Inventory
Equipment and tools inventories are purchased and maintained by the Wastewater
Collections Supervisor.
3. Vehicle Repair Program
All vehicles used by the Wastewater Division during the operation and maintenance
of the wastewater collection system are maintained and repaired by the Cleveland
Utilities Vehicle Garage.
9-1
Section 10
Identification, Prioritization and Implementation Procedures for
Wastewater Collection System Rehabilitation Actions
A. Collection System Assessment Priority Parameters
1. Purpose
The SCOPE-10 program has been created to oversee the flow monitoring, manhole
inspection, smoke testing, flow isolation studies and CCTV inspection and to use
this data to make recommendations pertinent to manhole, sewer lateral and sewer
main rehabilitation. This program will also oversee the rehabilitation, including
inspection and incorporation of the rehabilitation into the GIS mapping database.
The SCOPE-10 program will also manage the CMOM document and ensure that the
tasks described heretofore are performed and that recordkeeping is properly
performed.
The purpose of this program is to establish priorities, by drainage basin, for
assessing the condition and capacity of the wastewater collection system. The goal
is to efficiently restore the system to optimum capacity and reduce the number of
sanitary sewer overflows through rehabilitation of the collection system and
provide information for planning purposes.
2. Scope
This program uses the findings of service orders, flow monitoring studies, flow-
isolation studies, CCTV inspection and the SCOPE-10 program to develop a listing of
priorities for further investigation or rehabilitation.
3. Resources Needed
An engineer is needed to evaluate the data obtained through service orders, flow
monitoring studies, flow-isolation studies, CCTV inspection and the SCOPE-10
program. A GIS database and mapping system is critical to tracking information and
identifying connectivity of the wastewater collection system.
10-1
4. Method
The SCOPE-10 manager will review the following information:
a. Service Orders: The reports generated from will indicate drainage basins
with back-ups and sewer system overflow problems.
b. Flow Monitoring Reports: Reports covering at least a 60-day period should
include several rainy periods and should indicate drainage basins with high
wet weather flow to dry-weather flow ratios.
c. Flow Isolation Studies: These studies will indicate drainage basins with high
flow during night-time hours when only minimal flows should be seen. This
is indicative of infiltration.
d. SSO Reports: These reports will indicate drainage basins with problematic
levels of I/I and should include an estimate of SSO volumes for each
location.
e. Preliminary Sewer Assessments: Any field observations made by work
crews or operators that may indicate problem areas within the collection
system.
f. Public Health and Environmental Issues: Concerns created by sewer
defects, insufficient capacity or a need for wastewater collection system
expansion that are raised by TDEC, including receiving water use
designations.
The SCOPE-10 manager will prioritize the drainage basins based upon the
information obtained from the above programs to develop a schedule for
maintenance and rehabilitation of the wastewater collection system
5. Reports and Recordkeeping
The results of the review are compiled in a report that prioritizes the order of
drainage basins. This report is utilized to establish a capital improvement plan that
must be balanced with the financial capabilities of Cleveland Utilities. However, any
defects requiring immediate attention in other areas will be corrected on an
ongoing basis.
B. Gravity Pipeline Rehabilitation Program
1. Purpose
The purpose of this program is to prioritize the rehabilitation of gravity sewer
pipelines responsible for I/I to create capacity and reduce overflows. The program
addresses the techniques to be employed for rehabilitation and the means of
10-2
determining the effectiveness of the completed rehabilitation projects. The
program maintains an inventory of completed projects advises the SCOPE-10
manager of future rehabilitation projects for capital improvements planning.
2. Scope
This program uses the results from smoke testing, CCTV inspections, manhole
inspections, flow isolation studies, dyed-water testing and service lateral
investigations to prioritize rehabilitation projects in drainage basins. The program is
effective from planning to completion.
3. Resources Needed
The SCOPE-10 manager will evaluate all testing results and determine which
pipelines are most in need of rehabilitation. Defects noted during CCTV inspection
will be ranked by PACP coding, and any defects noted during other inspections will
be noted, along with the severity, on the GIS mapping system.
The GIS mapping of the wastewater collection system is necessary to map defects
along each pipe section and locating pertinent features such as roadways, streams
and structures.
4. Method
Preparation: The SCOPE-10 manager assembles all pertinent reports relating to
investigations within the designated drainage basin as well as a wastewater
collection system map of the drainage basin.
Procedure:
a. The gravity sewer pipelines within the basin will be scored based upon PACP
scoring. Additional consideration will be given to defects identified by other
means of testing. The impact of pipeline failure and cost of rehabilitation
will be taken into consideration.
b. Gravity sewer pipeline segments shown to have existing problems (SSO’s,
excessive I/I, back-ups, etc.) are evaluated by the number of defects and the
scoring of those defects. The condition of the defect, whether or not it as
risk of imminent failure and how much I/I are being contributed are all
taken into consideration when identifying pipeline segments for repair or
rehabilitation.
10-3
c. The method of rehabilitation is selected, considering the predicted mode of
failure and the size, condition, depth, location and material of the sewer
pipe. Some of the methods employed for rehabilitation are listed below:
• Cured-in-place-pipe
• Dig and replace
• Pipe Bursting
• Sliplining
• Point repairs
d. The rehabilitation project is completed and the effectiveness of the
improvements is confirmed by flow monitoring.
e. The results of the rehabilitation projects are monitored and tracked for
effectiveness.
f. All information is maintained through the GIS mapping database and the
SCOPE-10 program.
5. Reports and Recordkeeping
A report for each gravity sewer pipeline rehabilitation project should include the
sewer pipeline configuration, determination of need for rehabilitation, estimate of
I/I rates, method of rehabilitation and an estimate of I/I reduction. A listing of all
gravity sewer pipeline rehabilitation projects should include the effectiveness of the
methods used and any details of the project that influenced the effectiveness of the
methods used.
6. Performance Indicators and Goals
A performance indicator for gravity sewer pipeline rehabilitation program is the
percent rehabilitation completed. This indicator is the footage of pipe rehabilitated
divided by the footage identified as needing rehabilitation.
A reasonable number is to rehabilitate at least 50 percent of the pipe identified as
needing rehabilitation annually.
10-4
Section 11
Standards for Construction of New Additions to and Repair and
Rehabilitation of the Wastewater Collection System
The standards utilized by the Cleveland Utilities Water and Wastewater Division for the
construction of new additions to and repair and rehabilitation of the wastewater collection
system are available at the Cleveland Utilities web site (www.clevelandutilities.com) by
entering the water/wastewater section and downloading specifications.
11-1
Section 12
Quality Assurance Program for New Additions to the Wastewater
Collection System
Quality assurance during the construction of new additions to the Cleveland Utilities
wastewater collection system is provided by Cleveland Utilities personnel assigned to the
Engineering or Wastewater Rehabilitation Department or by resident construction observers
provided by consulting engineering firms responsible for administering construction of new
additions to the wastewater collection system.
12-1
Section 13
Procedures to Update and Modify MOM Program Elements
The SCOPE-10 manager will request the Vice-President of Water and Wastewater, Wastewater
Collections Supervisor and the Facilities Maintenance Supervisor review the MOM document
annually and provide any changes in MOM Program elements that need to be considered. The
SCOPE-10 manager will determine which changes should be incorporated into the MOM
document and publish these changes as revisions to the MOM Program document.
13-1
Appendix A
top related