410_Patterson_Spill_ERP_FINAL_-_Jun_2023_v2 — Patterson City Council, October 3, 2023

City of Patterson
Spill Emergency Response Plan
FINAL
JUNE 2023
Prepared for:

CITY OF PATTERSON
1 Plaza Circle
Patterson, CA 95363
(209) 895-8065
Prepared by:

BLACK WATER CONSULTING ENGINEERS, INC.
602 Lyell Drive
Modesto, CA 95356
(209) 322-1820
City of Patterson
Spill Emergency Response Plan
June 2023
i

TABLE OF CONTENTS
1 Introduction.......................................................................................................................................... 2

1.1 Purpose ......................................................................................................................................... 2

1.2 Regulatory Requirements............................................................................................................. 2

1.3 Spill Categories.............................................................................................................................. 3 2 Procedures............................................................................................................................................ 3 3 Notification ........................................................................................................................................... 4

3.1 Notification of Primary Responder ............................................................................................... 4

3.2 Notification to Regulatory Agencies............................................................................................. 4

3.3 Notification Procedures to Potentially Impacted Entities ............................................................ 4 4 Response............................................................................................................................................... 5 5 Spill Emergency Response Plan Training and Awareness Program...................................................... 5 6 Coordination with Other Agencies ....................................................................................................... 5 7 Post-Spill Assessments.......................................................................................................................... 5 8 Documentation and Reporting ............................................................................................................. 6 9 Emergency Contact Information........................................................................................................... 7 10 Annual Review and Assessment........................................................................................................... 7

LIST OF TABLES
Table 1 – Spill ERP Procedures and Practices ............................................................................................... 3 Table 2 – Spill Categories Requirements ...................................................................................................... 6

ATTACHMENTS
A Procedure for Receiving a Sewer Spill/Backup Report
B Procedures for Responding to a Sanitary Sewer Spill
C Procedures for Responding to a Sanitary Sewer Backup
D Sewer Backup Claims Procedures and Forms
E Customer Relations Practices
F Procedure for Using a Hydroflusher
G Emergency Contacts
H Annual Review of Spill Emergency Response Plan Documentation I Warning! Raw Sewage – Keep Out! Posting
City of Patterson
Spill Emergency Response Plan
June 2023
2 1 Introduction
This Spill Emergency Response Plan (ERP) was prepared for the City of Patterson (City) as a stand-alone document to meet the State Water Resources Control Board (SWRCB) Order WQ 2022-0103-DWQ, Statewide Waste Discharge Requirements General Order for Sanitary Sewer Systems (Order WQ 2022- 0103-DWQ or General Order), and to reflect changes in staffing or notification requirements, including contact numbers. The General Order was adopted by the SWRCB on December 6, 2022, and is effective on June 5, 2023. The General Order will supersede Order No. 2006-003-DWQ and any amendments thereafter.

The General Order states that existing enrollees with regulatory coverage under Order 2006-0003-DWQ shall update and implement the Spill ERP within six months of the adoption date of the General Order. No submittal of the Spill ERP to the California Integrated Water Quality System Project (CIWQS) is required.

The Spill ERP is an internal document that should be available for the City’s staff to implement. The City should update the Spill ERP as needed and provide an annual review of the Spill ERP to determine the effectiveness of the plan.

1.1 Purpose
The purpose of the Spill ERP is to ensure that the City has measures in place to protect public health and the environment by responding to spills from the sewer system in a timely manner and to collect information for prevention of future spills.

1.2 Regulatory Requirements
According to the General Order, the Spill ERP must include procedures to:
• Notify primary responders, appropriate local officials, and appropriate regulatory agencies of a spill in a timely manner;
• Notify other potentially affected entities (for example, health agencies, water suppliers, etc.) of spills that potentially affect public health or reach waters of the State; • Comply with the notification, monitoring and reporting requirements of this General Order, State law and regulations, and applicable Regional Water Board Orders; • Ensure that appropriate staff and contractors implement the Spill Emergency Response Plan and are appropriately trained;
• Address emergency system operations, traffic control and other necessary response activities; • Contain a spill and prevent discharge to waters of the State or any drainage conveyance system; • Minimize and remediate public health impacts and adverse impacts on beneficial uses of waters of the State;
• Remove sewage from the drainage conveyance system;
• Clean the spill area and drainage conveyance system in a manner that does not inadvertently impact beneficial uses in the receiving waters;
• Implement technologies, practices, equipment, and interagency coordination to expedite spill containment and recovery;
City of Patterson
Spill Emergency Response Plan
June 2023
3 • Implement pre-planned coordination and collaboration with storm drain agencies and other utility agencies/departments prior, during, and after a spill event; • Conduct post-spill assessments of spill response activities; • Document and report spill events as required in the new General Order; and • Annually, review and assess effectiveness of the Spill Response Plan, and update the Plan as needed.

1.3 Spill Categories
There are four categories of sanitary sewer spills as established by Order WQ 2022-0103-DWQ. • Category 1 Spill
o Any volume of sewage that discharges to a surface water, including a surface water body that contains no flow or volume of water, or
o Any volume of sewage that discharges to a drainage conveyance system that discharges to a surface water when the sewage is not fully captured and returned to the sewer system or disposed of properly.
• Category 2 Spill
o A spill of 1,000 gallons or greater that does not discharge to a surface water. • Category 3 Spill
o A spill equal or greater than 50 gallons and less than 1,000 gallons that does not discharge to surface water.
• Category 4 Spill
o A spill of less than 50 gallons that does not discharge to surface water. 2 Procedures
Table 1 lists procedures and practices associated with responding to sewer spills and backups which are provided as attachments to this Spill ERP. The main goals of these procedures are to protect public health, the environment, and property from sewage spill events and to make every feasible effort to restore affected areas as soon as possible.

Table 1 – Spill ERP Procedures and Practices
Attachment Description
A Procedure for Receiving a Sewer Spill/Backup Report
B Procedures for Responding to a Sanitary Sewer Spill
C Procedures for Responding to a Sanitary Sewer Backup
D Sewer Backup Claims Procedures and Forms
E Customer Relations Practices
F Procedure for Using a Hydroflusher
G Emergency Contacts
H Annual Review of Spill Emergency Response Plan Documentation I Warning Sign
City of Patterson
Spill Emergency Response Plan
June 2023
4 3 Notification
Water Code Section 13267 and Section 13383 require notifying of appropriate parties of a spill event.

Failure to comply with the notification requirements is an enforceable component of the General Order and may subject the City to civil liabilities. The sections below briefly summarize the notification requirements. Notification of the appropriate parties is integrated into the Spill ERP Procedures provided as attachments to this plan.

3.1 Notification of Primary Responder
During business hours, any reports or complaints of sewer backups or spills are received through the Public Works Department; work orders are generated, and the Deputy Director of Public Works and Deputy Director of Operations and Maintenance (Deputy Directors) are notified. Maintenance worker(s) are then dispatched to assess, contain, fix, and/or clean-up the problem. After business hours, calls are routed through the answering service who then contact the on-call personnel. The on-call personnel will respond to the call and will notify the Deputy Directors. The City also encourages residents (via website and newsletter) to call Public Works if they are experiencing sewer issues inside the home. The City’s response to such calls is to dispatch a staff member to check the sewer lines that service the neighborhood in question. This will review if the source of the issue inside the home is due to an obstruction in the City sewer main line or specific to the residence. This practice will help avoid potential sanitary sewer spills.

Staff are instructed to give all calls related to sewer issues/spills top priority.

Refer to Attachment A, Flow Chart 1, Receiving a Sewage Spill/Backup Report, for more information regarding notification of the primary responder.

3.2 Notification to Regulatory Agencies
The Procedures for Responding to a Sanitary Sewer Spill provided in Attachment B include notification of regulatory agencies.

The California Office of Emergency Services (OES), Central Valley Regional Water Quality Control Board (RWQCB), and Stanislaus County Department of Environmental Resources (County Environmental Resources) should be notified as soon as possible, but not later than two hours after the City has knowledge of the spill and notification can be provided without substantially impeding cleanup or other emergency measures of a Category 1 spill that exceeds 1,000 gallons.

Following the initial notification to OES, RWQCB, and the County Environmental Resources and until a spill report is certified on the CIWQS Sanitary Sewer System Database, the City shall provide updates to each of these regulatory agencies regarding substantial changes to the estimated spill volume, estimated discharge volume discharged directly into water of the State or indirectly into a drainage conveyance system, and additional impact(s) to the receiving water(s) and beneficial uses.

If there is evidence of fish kill, the California Department of Fish and Game should also be notified.

3.3 Notification Procedures to Potentially Impacted Entities In addition to posting warning signs to impacted public areas and notifying regulatory agencies, City staff should also notify potentially impacted entities such as other City departments, businesses, schools, City of Patterson
Spill Emergency Response Plan
June 2023
5 neighboring cities, and other public agencies. These entities will vary depending on the location of the spill. A warning posting label is provided in Attachment I. 4 Response
Calls received during business hours will be responded to immediately to minimize the impact of a sanitary sewer spill. The Deputy Directors will dispatch street maintenance worker(s) to respond to the call. Calls received after business hours will be responded to within one hour by the Public Works on-call person.

Depending on the magnitude of the emergency, additional street maintenance workers may be dispatched as required. Non-emergency calls, even odor complaints, are also investigated immediately and will be responded to within one hour.

Refer to Attachments B through D for the response to sanitary sewer spill and backup forms and instructions.
5 Spill Emergency Response Plan Training and Awareness Program The City’s staff have been trained in sanitary sewer spill response procedures and safety training meetings are held once a month. The City’s staff continue to learn new techniques from professional organizations through training opportunities. The City has also adopted a training matrix. This is a comprehensive training program for new hires requiring documented training on all equipment they are anticipated to use and training on work tasks they are anticipated to perform. Additionally, Attachment E, Customer Relations Practices, and Attachment F, Procedure for using a Hydroflusher, are included in this Spill ERP and provide useful guidance.
6 Coordination with Other Agencies
The City currently coordinates with the SWRCB and other nearby Central Valley wastewater agencies. The City shall notify other appropriate agencies provided in Section 3.2 and Attachment B8. 7 Post-Spill Assessments
The City should conduct a post-spill assessment of spill response activities. Post-spill assessments include:
• Receiving water sampling and analysis for spills which an estimated 50,000 gallons or greater are discharged into surface water.
• Completion of the “Recommended Follow-up Actions to Prevent Future Occurrences” section of the Sanitary Sewer Overflow Report (Attachment B8).

The General Order states that sampling of bacterial indicators shall be sufficient to determine post-spill (after the spill) compliance with the water quality objectives and bacterial standards of the California City of Patterson
Spill Emergency Response Plan
June 2023
6 Ocean Plan or the California Inland Surface Water Enclosed Bays, and Estuaries Plan, including the frequency and/or number of post-spill receiving water samples as may be specified in the applicable plans.

Additionally, the City should collect and analyze additional samples as required by the applicable Regional Water Board Executive Officer.
8 Documentation and Reporting
Under the General Order, all reporting must be submitted electronically to the online CIWQS Sanitary Sewer System Database unless specified otherwise. Electronic reporting may solely be conducted by a Legally Responsible Official or Data Submitter(s) previously designated by the Legally Responsible Official.

Refer to Table 2 for the reporting requirements for Spill Categories 1-4.

Table 2 – Spill Categories Requirements
Spill Category 1: Spills to Surface Waters
Notification Within two hours of the Enrollee’s knowledge of a Category 1 spill of 1,000 gallons or greater, discharging or threatening to discharge to surface waters:
• Notify the California Office of Emergency Services.

Monitoring • Conduct visual monitoring;
For spills of 50,000 gallons or greater to surface waters:
• Conduct receiving water sampling within 18 hours of initial knowledge of spill.

Reporting • Submit Draft Spill Report within three business days of the knowledge of the spill; • Submit Certified Spill Report within 15 calendar days of the spill end date; • Submit Technical Report within 45 calendar days after the spill end date – for a Category 1 spill of 50,000 gallons or greater;
• Submit Amended Spill Report within 90 calendar days after the spill end date.

Spill Category 2: Spills of 1,000 Gallons or Greater That Do Not Discharge to Surface Waters Notification Within two hours of the knowledge of a Category 2 spill of 1,000 gallons or greater, discharging or threatening to discharge to waters of the State:
• Notify California Office of Emergency Services.

Monitoring • Conduct visual monitoring.

Spill Category 3: Spills of Equal to or Greater than 50 Gallons and Less Than 1,000 Gallons That Do Not Discharge to Surface Waters
Notification Not Applicable
Monitoring Conduct visual monitoring.

Reporting • Submit monthly Certified Spill Report to the online CIWQS Sanitary Sewer System Database within 30 Calendar days after the end of the month in which the spills occurred;
• Submit Amended Spill Report within 90 calendar days after the Certified Spill Report due date.

City of Patterson
Spill Emergency Response Plan
June 2023
7 Spill Category 4: Spills Less Than 50 Gallons That Do Not Discharge to Surface Waters Notification Not Applicable
Monitoring Conduct visual monitoring.

Reporting • Certify monthly, the estimated total spill volume and the total number of all Category 4 spills into CIWQS, within 30 days after the end of the calendar month in which the spills occurred.
• Upload and certify a report of all Category 4 spills to CIWQS, by February 1st after the end of the calendar year in which the spills occurred. 9 Emergency Contact Information
Refer to Attachment G for the City’s and emergency contractors/equipment rental vendors contact information.
10 Annual Review and Assessment
In accordance with the requirements of the General Order, this Spill ERP should be reviewed annually, and the Plan updated as needed. Records of the annual review should be maintained. A form to document the annual reviews is provided as Attachment H.

City of Patterson
Spill Emergency Response Plan
June 2023

ATTACHMENTS
1 RECEIVING A SEWAGE OVERFLOW/BACKUP REPORT
Point Person Responsibilities
This person takes the initial report.

Scene Supervisor Responsibilities
This person will be in charge of the response
at the actual scene of the overflow.

SEWER OVERFLOW INCIDENT

BUSINESS HOURS

ALL CALLS ARE ROUTED THROUGH THE CITY MAIN LINE
Phone = 209.895.8060 (Public Works)

NON-BUSINESS HOURS

CALLS ARE ROUTED TO ANSWERING SERVICE
Phone: 209.895.8000, OPTION 9

THEY WILL NOTIFY THE STANDBY PERSONNEL
Complete the City of Patterson Service Request Form.

STANDBY PERSONNEL:

1. Contact the customer reporting the problem.

2. Complete the City Service Request Form

1. Provide Customer with the contact information
for the responsible Agency (i.e., other City).

2. Point Person notifies the Responsible Agency.

1. Dispatch Collections Crews

2. Instruct Collections Crew to
reference Attachment B of the
Sanitary Sewer Overflow &
Backup Response Plan.

STEP ACTION
1st TELL THE CUSTOMER (See Appendix E for Customer Relations Tips)  Clearly communicate who will be out, when they will arrive, and what area(s) they will need accessed.  Clearly communicate that a blockage in the sewer main line will be promptly cleared, but that the City of Patterson personnel are not allowed to work on a blockage in the property owner’s/resident’s service lateral line. Use general terms that the caller can understand and give the caller your name for future reference.  Show concern and empathy for the property owner/resident, but do not admit or deny liability.  Instruct the caller to keep all family members and pets away from the affected area.  Instruct the caller to place towels, rags, blankets, etc. between areas that have been affected and areas that have not been affected.
 Instruct the caller to not remove any contaminated items - let the professionals do this.  Instruct the caller to turn off their HVAC System.
2nd 1. Dispatch Collection Crew

2. Instruct Collections Crew to reference Attachment C of the Sanitary Sewer Overflow & Backup Response Plan.

NO
Is the spill inside a
building or in the
street?

IS IT IN
SERVICE AREA?
Outside YES
Inside
FORWARD REQUEST TO:
• Deputy Director of O&M, Robert Andrade
(Office: 209.895.8162 Cell: 209.652.0843)
• If unavailable, then contact the Director of Public
Works, Mike Willett
(Office: 209.895.8065 Cell: 209.229.5810)

ATTACHMENT A
1 SANITARY SEWER SPILLS

TOPIC ATTACHMENT
Responding to a Sanitary Sewer Spill B1
Procedure for Collecting Receiving Water Samples After a Sewage Spill B2 Procedure For Calculating Spill Volume - Measurement B3 Procedure For Calculating Spill Volume - Estimating Flow Out of a Manhole B4 Procedure For Calculating Spill Volume - Estimating Flow Out of a Pick Hole B5 Procedure For Calculating Spill Volume - Estimating Flow By Counting Service Connections B6 Guide To Reporting To Regulatory Authorities B7
Sewer Overflow Report Form B8
SSO Field Forms Packet Assembly Instructions B9

CITY OF PATTERSON POLICY
City of Patterson employees are required to report all sewer spills found and to take the appropriate action to secure the impacted area, relieve the cause of the spill, and ensure that the affected area is cleaned as soon as possible to minimize health hazards to the public and protect the environment. The City's goal is to respond to sewer system spills as soon as possible following notification.

THE RESPONDER’S ROLE:
• To protect public health, environment, and property from sewage spill events and to make sure every feasible effort to restore affected areas to normal as soon as possible.
• To establish perimeters and control zones with cones, barricades, vehicles, or terrain. • To contain sewage discharged to the maximum extent possible.

ATTACHMENT B
1 RESPONDING TO A SANITARY SEWER SPILL
Point Person Responsibilities Scene Supervisor Responsibilities Dispatch Crew and Appropriate Equipment (Vactor, Outdoor Sewage Spill Response Materials (storm drain mats, diversionary booms, camera, Sewage Spill Report) Scene Supervisor - START HERE
Perform initial evaluation
of the spill and cause.

Contact crew to clear blockage (see
Attachment G – Emergency Contact
Information).

ASSIGN STAFF TO POST
“WARNING-RAW SEWAGE”
Signs/other means of warning to
public in immediate area.

Can the spill be
contained?

IS ADDITIONAL
SUPPORT NEEDED?

SEE ATTACHMENT G FOR

ADDITIONAL RESOURCES
- Notify Supervisor if additional
support is needed.

STEP ACTIONS
1ST -
Diversion and
Containment

1. DIVERT AWAY FROM SENSITIVE AREAS
a. UNPLUGGED STORM DRAINS, SCHOOLS, DAYCARES, PLAYGROUNDS, INTERSECTIONS, ETC.  Cover unplugged storm drains with mats or use dirt or other diking material to divert away from sensitive areas.
b. ENSURE PUBLIC CONTACT DOES NOT OCCUR. Use cones/barricades for lane closures until spill can be completely removed.

2. CONTAIN SPILL AND RETURN TO SYSTEM, IF POSSIBLE  Techniques:
a. Install air plugs in storm drain catch basins and divert flow to catch basin. b. Build berm to channel flow to downstream manhole (barricade if you leave it open). c. Use bypass pumps to pump around blockage until it can be removed. d. Divert to low area of ground where it can be collected later. 2nd -
Blockage Clearing
Use the appropriate cleaning equipment to the situation to hydroflush, rodder, or hand rod to clear a blockage. Make certain to either have the vactor setup at the downstream manhole or use a for or trap at the outlet of the manhole in the channel to catch any debris that it released. If using the rodder, set-up at the first dry manhole and run upstream until you hit the blockage. Once you break through the blockage, pull the rods and cleaning tools out. If you leave the rods in the line, it could restrict the flow. Once the flow is back to normal, run the line to the next manhole.

SEE ATTACHMENT F FOR THE HYDROFLUSHING SOP
3rd -
Area Cleanup

ASSIGN STAFF TO BEGIN CLEANUP

1. Remove all signs of gross pollution (toilet paper, solids, grease, etc.)

2. Flush area with metered water - Unless raining (3 times the amount of the spill, if possible). a. Setup a berm or other means to contain all chlorinated flush water so that it can be delivered to the sewer or removed with the vactor.
b. DO NOT USE ANY DISINFECTANT THAT MAY ENTER THE STORM DRAIN OR OTHER WATER SUPPLY!
4th -
Document and Report

1. Photograph the spill location and the area affected.

2. Complete the Sewage Overflow Report ATTACHMENT B8).

3. Go to Side 2 and follow the instructions.

NO
NO
YES
YES
ATTACHMENT B1
2 RESPONDING TO A SANITARY SEWER MAINLINE OVERFLOW
Point Person Responsibilities Scene Supervisor Responsibilities

START HERE
Has the SSO reached or likely
to reach receiving waters?
Will the spill affect a school, park,
shopping center, playground, or other
areas where the public gathers?

ASSIGN STAFF TO POST
“WARNING-RAW SEWAGE”
Signs/other means of warning to public in
immediate area.

COLLECT RECEIVING WATER SAMPLES
Go to Attachment B2 and follow the instructions for
collecting receiving water samples.

ESTIMATE SPILL VOLUME USING ONE OF THE
FOLLOWING METHODS:

1. Measure the Spill – See example on Attachment B3.

2. Estimated the Flow
a. If the flow is coming from a manhole, use
Attachment B4 to estimate the flow and
multiply it by the time of the overflow in
minutes. This will give you gallons.
b. If the flow is coming from a manhole PICK HOLE,
use Attachment B5 to estimate the flow and
multiply it by the time of the overflow in
minutes. This will give you gallons.
c. If the spill is from a pump station, use the
previous days flow record or pump capacity to
estimate the flow.

3. Count the Upstream Connections – See example on
Attachment B6.

IMMEDIATELY
Make All Notifications As Required On Attachment
B8 side 2 – “Sanitary Sewer Overflow Report”
Is the Estimated Volume
> 1,000 gal?
Were Receiving Water
Samples Collected?
Were “WARNING – RAW
SEWAGE” Warning Posted in
Immediate Area?
Were Storm Drains/Ditches or
ANY Other Natural Body of
Water Reached By the Spill?
WITHIN 3 DAYS
Point Person Go To Attachment B7 –
Box B
WITHIN 2 HOURS
Point Person Go To Attachment B7 –
Box A
NO
YES
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
ATTACHMENT B1
1 PROCEDURES FOR SAMPLING RECEIVING WATERS

AFTER A SEWAGE SPILL
COLLECT SAMPLES AS FOLLOWS:

1. For sewage spills in which an estimated 50,000 gallons or greater are discharged into a surface water, the City shall conduct the following water quality sampling no later than 18 hours after the City’s knowledge of a potential discharge to a surface water:
a. Collect one water sample, each day of the duration of the spill, at:
i. A point in a drainage conveyance system before the drainage conveyance system flow discharges into a receiving water.
ii. Each of the three receiving water sampling locations described as follows:

1. A point in the receiving water where sewage initially enters the receiving water.

2. A point in the receiving water, upstream of the point of sewage discharge, to capture ambient conditions absent of sewage discharge impacts.

3. A point in the receiving water, downstream of the point of sewage discharge, where the spill material is fully mixed with the receiving water.

If the receiving water has no flow during the duration of the spill, the City must report “No Sampling Due To No Flow” for its receiving water sampling locations.

2. The City shall analyze the collected receiving water samples for the following constituents per the Water Quality Analysis Specifications of this Attachment:
a. Ammonia, and
b. Appropriate bacterial indicator(s) per the applicable Basin Plan water quality objectives, including one or more of the following, unless directed otherwise by the Regional Water Board:
i. Total Coliform Bacteria
ii. Fecal Coliform Bacteria
iii. E-coli
iv. Enterococcus
Dependent on the receiving water(s), sampling of bacterial indicators shall be sufficient to determine postspill (after the spill) compliance with the water quality objectives and bacterial standards of the California Ocean Plan or the California Inland Surface Water Enclosed Bays, and Estuaries Plan, including the frequency and/or number of post-spill receiving water samples as may be specified in the applicable plans.

3. The City shall collect and analyze additional samples as required by the applicable Regional Water Board Executive Officer or designee.

WATER QUALITY ANALYSIS SPECIFICATIONS
Spill monitoring must be representative of the monitored activity (40 Code of Federal Regulations section 122.41(j)(1)).

Sufficiently Sensitive Methods
Sample analysis must be conducted according to sufficiently sensitive test methods approved under 40 Code of Federal Regulations Part 136 for the sample analysis of pollutants. A method is sufficiently sensitive when the minimum level of the analytical method approved under 40 Code of Federal Regulations Part 136 is at or below the receiving water pollutant criteria.

Environmental Laboratory Accreditation Program-Accredited Laboratories The analysis of water quality samples must be performed by a laboratory that has accreditation pursuant to Article 3 (commencing with section 100825) of Chapter 4 of Part 1 of Division 101 of the Health and Safety Code. (Water Code section 13176(a).) The State Water Board accredits laboratories through its Environmental Laboratory Accreditation Program (ELAP).

ATTACHMENT B2
1 SANITARY SEWER SPILLS
DETERMINING FLOW VOLUME – MEASUREMENT
The volume of some small spills can be estimated using this method if it is not raining. In addition, the shape, dimensions, and depth of the spilled wastewater are needed. The shape and dimensions are used to calculate the area of the spills and the depth is used to calculate the volume.

Step 1 Sketch the shape of the contained sewage
Step 2 Measure or pace off the dimensions.

Step 3 Measure the depth in several locations
Step 4 Convert the dimensions, including depth to feet.

Step 5 Calculate the area using the following formulas:

Rectangle Area = length x width
Circle Area = diameter x diameter x 0.785
Triangle Area = base x height x 0.5
Step 6 Multiply the area times the depth
Step 7 Multiply the volume by 7.85 to convert it to gallons EXAMPLE:

V = 100’ x 100’ x .5’ x 7.85
= 37,400 gallons
EXAMPLE:

V = 100’ x 100’ x .5’ x .785 x 7.85
= 29,359 gallons
ATTACHMENT B3
100 FT DIA = 100 FT
100 FT
1 SANITARY SEWER SPILLS
DETERMINING FLOW VOLUME – APPROXIMATION ATTACHMENT B4
1 SANITARY SEWER SPILLS
DETERMINING FLOW VOLUME –

ESTIMATED FLOW RATE THROUGH A PICK HOLE

ESTIMATED SSO FLOW OUT OF M/H PICK HOLE
Note: This chart is based on a 7/8-inch diameter pick hole.

Height of spout
above M/H cover
“H” in inches
SSO Flow
“Q” in gpm
Height of spout
above M/H cover
“H” in inches
SSO Flow “Q”
in gpm
1/8 1.0 5 1/8 6.2
1/4 1.4 5 1/4 6.3
3/8 1.7 5 3/8 6.3
1/2 1.9 5 1/2 6.4
5/8 2.2 5 5/8 6.5
3/4 2.4 5 3/4 6.6
7/8 2.6 5 7/8 6.6
1 2.7 6 6.7
1 1/8 2.9 6 1/8 6.8
1 1/4 3.1 6 1/4 6.8
1 3/8 3.2 6 3/8 6.9
1 1/2 3.4 6 1/2 7.0
1 5/8 3.5 6 5/8 7.0
1 3/4 3.6 6 3/4 7.1
1 7/8 3.7 6 7/8 7.2
2 3.9 7 7.2
2 1/8 4.0 7 1/8 7.3
2 1/4 4.1 7 1/4 7.4
2 3/8 4.2 7 3/8 7.4
2 1/2 4.3 7 1/2 7.5
2 5/8 4.4 7 5/8 7.6
2 3/4 4.5 7 3/4 7.6
2 7/8 4.6 7 7/8 7.7
3 4.7 8 7.7
3 1/8 4.8 8 1/8 7.8
3 1/4 4.9 8 1/4 7.9
3 3/8 5.0 8 3/8 7.9
3 1/2 5.1 8 1/2 8.0
3 5/8 5.2 8 5/8 8.0
3 3/4 5.3 8 3/4 8.1
3 7/8 5.4 8 7/8 8.1
4 5.5 9 8.2
4 1/8 5.6 9 1/8 8.3
4 1/4 5.6 9 1/4 8.3
4 3/8 5.7 9 3/8 8.4
4 1/2 5.8 9 1/2 8.4
4 5/8 5.9 9 5/8 8.5
4 3/4 6.0 9 3/4 8.5
4 7/8 6.0 9 7/8 8.6
5 6.1 10 8.7
ATTACHMENT B5
Unrestrained M/H cover
will start to lift.
1 SANITARY SEWER SPILLS
DETERMINING FLOW VOLUME –

ESTIMATED NUMBER OF SERVICE CONNECTIONS
Collection System Maps
METHOD

1. Count the number of upstream connections

2. Estimate the time the overflow has been occurring. (The overflow was probably flowing before it was reported)

3. Each residence contributes about 240 gallons per day or about 10 gallons per hour. Multiply the number of residences by 10 and by the number of hours. This gives you the number of gallons.

NOTE: This is a conservative estimate because stoppages rarely stop all of the flow.

ATTACHMENT B6
1 SANITARY SEWER SPILLS

PROCEDURES FOR DETERMINING FLOW VOLUME

AND FOR REPORTING TO REGULATORY AGENCIES
BOX A
Immediate Reporting to the Governor’s Office of Emergency Service Within 1 hour of becoming aware of an SSO that meets any of the following criteria:
☐ Any SSO that is 1,000 gallons or more, or
☐ Any SSO that may imminently and substantially endanger human health, or ☐ Any SSO that causes fish kills.

1. Call the Governor's Office of Emergency Services at 1.800.852.7550

2. Using the information from the Sanitary Sewer Overflow Report Form (Attachment B8), report the spill details & obtain a Control Number to provide the Regional Board (use the Phone Script on Side 2 of this page) BOX B
Within 2 Hour Reporting
Within 2 hours of becoming aware of an SSO that meets any of the following criteria:
☐ Any SSO that is 1,000 gallons or more, or
☐ Any SSO that may imminently and substantially endanger human health, or ☐ Any SSO that causes fish kills.
☐ Any SSO that reached receiving waters, or
☐ Any SSO that required posting of "Warning - Raw Sewage" signs.

One of the Following Individuals:
☐ Robert Andrade, Deputy Director of O&M: 209.895.8162 (office) or 209.652.0843 (cell) ☐ Mike Willett, Director of Public Works: 209.895.8065 (office) or 209.229.5810 (cell) Is to Report the SSO to the following:
☐ Call the Governor's Office of Emergency Services at 1.800.852.7550 Using the information from the Sanitary Sewer Overflow Report Form (Attachment B8), report the spill details & obtain a Control Number to provide the Regional Board (use the Phone Script on Side 2 of this page)
☐ Central Valley Regional Water Quality Control Board - Note: Provide the Control Number given by the Governor's Office of Emergency Services, if applicable, to one of the following:
• Daniel Benas at 559.445.5500 or [email protected] • Dale Harvey at 559.445.6190 or [email protected] • General Information at 559.445.5116
• Main CVRWQCB Number 951-782-4130
☐ Stanislaus County Environmental Health Department at 209.525.6700 ☐ If potential for fish kill: California Dept. of Fish and Game Spill Prevention and Response 24-Hour Dispatch at 916.445.0380 - press "2" to report a pollution incident.

BOX C
3- Day Written Follow-Up Reporting to Regional Water Quality Control Board Within 3-days of notifying the Regional Water Quality Board of an SSO, a written report containing the following information shall be submitted to the City Regional Water Quality Control Board contact:
☐ Location of spill; ☐ Date and time of spill; ☐ Volume and nature of the spill; ☐ Causes(s) of the spill; ☐ Mitigation measures taken; ☐ Duration of the spill; ☐ Size of the affected area; ☐ Number of warning signs places and their locations; ☐ How many samples were taken, sample location and constituents sampled; ☐ Corrective measures implemented/proposed to prevent/minimize future occurrences.

NOTE: Include photos of the damage/obstruction of the collection system and the area affected by the spill.

ATTACHMENT B7
2 SANITARY SEWER OVERFLOWS

PROCEDURES FOR DETERMINING FLOW VOLUME

AND FOR REPORTING TO REGULATORY AGENCIES
Phone Script for Reporting SSO’s
“This is (name) from the City of Patterson. I have a sewage spill report to make. The City of Patterson has experienced a sewer line blockage, resulting in the discharge of raw sewage. The blockage occurred at (time, date, and exact location) .

The quantity spilled was approximately (# of gallons) . A City of Patterson crew was dispatched to the site at (time) to clean up the spill. Cleanup operations were/will be completed by (time and date) .” NOTE: When leaving a message, please provide:

1. Your name

2. Organization Name (City of Patterson)

3. Your return phone number

4. The following information about your spill:
a. Date and time of occurrence;
b. Location (street address, or nearest address and cross streets); c. Volume;
d. Rate of flow;
e. Duration;
REFER TO THE SEWER OVERFLOW REPORT FORM (ATTACHMENT B8) FOR THE INFORMATION

NECESSARY FOR THIS PHONE REPORT
1 CITY OF PATTERSON SANITARY SEWER SPILL REPORT
A. TIME OF OCCURANCE OR DISCOVERY
Estimated spill start date/time: ___________________________________________________________________________________ Date and time sanitary sewer system agency was notified or discovered spill: ______________________________________________ Estimated spill end date/time: ____________________________________________________________________________________ Weather condition at time of spill: ☐ Sunny Weather ☐ Cloudy Weather ☐ Raining Weather ☐ Rain for Several Days B. DESCRIPTION
Estimate volume spilled (in gallons) ____________________ Spill risk magnitude ☐ Low ☐ Medium ☐ High Estimate volume of Pill recovered _________ gallons Estimated current spill rate (if applicable) ________ gallons per minute SSO Source: ☐ Manhole ☐ Pipe ☐ Clean Out ☐ Pump Station ☐ Other If other, please specify: ________________________________________________________________________________________ Spill appearance Point:
☐ Building or Structure ☐ Force main or pressure sewer ☐ Gravity Sewer ☐ Manhole ☐ Other Sewer System Structure ☐Pump Station ☐ Other (Specify) Explanation: (Required if spill appearance point is "Other") ___________________________________________________________ Did the Spill Discharge to a drainage channel and/or surface water? ☐ Yes ☐ No Any fish killed? ☐ Yes ☐ No Did the spill discharge to a storm drainpipe that was not fully captured and returned to the sanitary sewer system? ☐ Yes ☐ No Private Lateral Spill? ☐ Yes ☐ No
Name of Responsibility Party (for private lateral spill only, if known): ____________________________________________________ Address: ___________________________________________Telephone Number: _________________________________________ Volume of SSO recovered/contained: (gal) ___________ Volume of SSO discharged to State Water (gal) ________________________ C. LOCATION
Spill Location Street Name: _______________________________________________________________________________________ Latitude of Spill Location: ___________ deg. __________ min. __________sec. OR _________________decimal degrees Longitude of Spill Location: ___________ deg. __________ min. __________sec. OR _________________decimal degrees Cross Street: __________________ City: _______________ State: __________ Zip: _____________ County: ____________________ Spill Location Description: _______________________________________________________________________________________ D. CAUSE
☐ Debris ☐ Flow exceeded capacity ☐ Grease deposition (FOG) ☐ Operator error ☐ Pipe structural problems/Failure ☐ Pump Station Failure ☐ Rain fall exceeded design ☐ Root intrusion ☐ Vandalism ☐ Other (Specify below) Spill Cause Explanation (required if spill cause is "Other") ______________________________________________________________ Diameter of sewer pipe at the point of blockage or spill cause (if applicable): _______________________ inches Material of sewer pipe at the point of blockage or spill cause (if applicable): ________________________ Estimated age of sewer pipe at the point of blockage or spill cause (if applicable): ___________________ Description of terrain surrounding the point of blockage or spill case (if applicable): ☐ Flat ☐ Mixed ☐ Steep ATTACHMENT B8
2 E. INCIDENT RESPONSE
Explanation of spill response activities:
☐ Cleaned-up (mitigated effects of spill) ☐ Contained all or portions of spill ☐ Inspected sewer using CCTV to determine cause ☐ Restored Flow ☐ Returned all or portion of spill to sanitary sewer system ☐ Other (specify below) Visual inspection results from impacted receiving water:

Description: ___________________________________________________________________________________________________ Were responsive/corrective actions taken? ☐ Yes ☐ No Were clean-up actions taken? ☐ Yes ☐ No Were disinfection actions taken? ☐ Yes ☐ No If yes, please specify completion date: _____________________________ Investigation Status: ☐ Open Active ☐ Open Enforcement ☐ Closed Were health warnings posted? ☐ Yes ☐ No Any beach closure? ☐ Yes ☐ No Beach closure details: ___________________________________________________________________________________________ NOTIFICATION DETAILS, IF SPILL IS CATEGORY 1
OES Control Number _________________________________ OES called Date/Time: _______________________________________ Regional Water Quality Control Board notified date/time: _____________________________________________________________ ☐ Stanislaus County ☐ Department of Fish and Game
Date and time spill report information was submitted via fax to Regional Quality Control Board:_______________________________ Samples Type: ☐ SS ☐ TOC ☐ BOD ☐ MPN Coliform ☐ FOG (Fats, Oil & Grease)

RECOMMENDED FOLLOW-UP ACTIONS TO PREVENT FUTURE OCCURENCES CURRENT PM FREQUENCY:
☐ Greater than annual ☐ Annual
☐ Semiannual ☐ Quarterly ☐ Monthly
DATE OF LAST PM:

RECCOMMEDED ACTIONS:
☐ TV ☐ Re-run Change Cleaning schedule ☐ Repair Line segment ☐ Replace segment Stanislaus County Department of Health Services
Phone: 209.948.7697 Fax: 209.948.7451
3 CITY OF PATTERSON SANITARY SEWER SPILL REPORT
NOTIFICATIONS* - COMPLETE ALL REQUIRED NOTIFICATIONS
NOTIFICATIONS* - COMPLETE ALL REQUIRED NOTIFICATIONS
Spill is greater than 1,000 gal and/or will impact receiving waters, contact:

OFFICE OF EMERGENCY SERVICES (800-852-7550): DATE & TIME:

PERSON CONTACTING: SPOKE TO:

CONTROL NUMBER:

If spill is greater than 1,000 gal and/or will impact receiving waters and/or storm drains:

REGIONAL WATER QUALITY CONTROL BOARD
Daniel Benas at 559.445.5500 or [email protected] or Dale Harvey at 559.445.6190 or [email protected] or General Information at 559.445.5116 or Main CVRWQCB Number 951-782-4130 Provide Control Number to RWQB Staff
DATE & TIME:

PERSON CONTACTING: SPOKE TO:

If spill is greater than 1,000 gal and/or will impact receiving waters and/or there is evidence of a fish kill:

CA DEPT OF FISH & GAME SPILL PREVENTION & RESPONSE 24-Hour Dispatch at (Phone: 916-445-0380 – press “2” to report a pollution incident):

DATE & TIME:

PERSON CONTACTING: SPOKE TO:

If spill impacted public areas, warning signs were posted and/or human contact occurred, Contact:

STANISLAUS COUNTY DEPT. OF ENVIRONMENTAL RESOURCES at
209.525.6700 OR 911 after hours (request a hazmat response) DATE & TIME:

PERSON CONTACTING: SPOKE TO:

SERVICE CALL CUSTOMER NOTIFIED RE: STATUS: ☐ YES ☐ NO IF NO, WHY:

START HERE
Is the Estimated Volume > 1,000 gal?
Were receiving water samples collected?
Were “WARNING - RAW SEWAGE” warnings posted in immediate area? Were storm drains/ditches or ANY other natural body of water reached by the spill? Forward this completed form and all other documentation/pictures to the Deputy Director of O&M.

IMMEDIATELY Contact One of the Following & Request They Immediately Make Regulatory Notifications Regarding this SSO According to the Attachment B7 Robert Andrade, Deputy Director of O&M: Office: 209.895.8162 or Cell: 209.652.0843 Mike Willett, Director of Public Works: Office: 209.895.8065 or Cell: 209.229.5810.

NO
NO
NO
NO
YES
YES
YES
YES
ATTACHMENT B8
1 FIELD FORMS PACKET – SANITARY SEWER SPILL

ASSEMBLY INSTRUCTIONS
In order to properly gather and distribute all the necessary information at the scene of a sanitary sewer spill, it is recommended that Sanitary Sewer Spill Field Forms Packets be created and placed in all field vehicles that may be used to respond to a spill.

The following instructions will guide you through the assembly of the Sanitary Sewer Spill Field Forms Packet using the form contained in Attachment B – Sanitary Sewer Spills.

STEP ACTION
1 Determine how many packets you wish to assemble.
2 Obtain the same number of Tyvek (water & tear resistant) envelopes. 3 Place 1 copy of each of the following in each Tyvek envelope. ☐ Attachment B8 – Sanitary Sewer Spill Report Form
☐ Attachment B1 – Responding to a Sanitary Sewer Spill
☐ Attachment B1 Side 2 - Responding to a Sanitary Sewer Spill ☐ Attachment I – Place a laminated copy of Attachment I – “Warning Raw Sewage” 4 Tape or otherwise secure to the front of each envelope a copy of the Sanitary Sewer Spill Field Forms Packet Instructions (Master is located behind this page)
5 Place two staples through the top of the envelope
6 Place at least 1 complete Sanitary Sewer Spill Field Forms Packet in each field vehicle that may be used to respond to a sanitary sewer spill.

ATTACHMENT B9
1 IN THE EVENT OF A SANITARY SEWER SPILL

SANITARY SEWER SPILL

FIELD FORMS PACKET

READ ME FIRST
1st Remove the form marked Attachment B1 – Responding to a Sanitary Sewer Spill from this packet and follow the instructions.
• Reference the City of Patterson Spill Emergency Response Plan field binder, as necessary. 2nd Take pictures of affected and unaffected areas before and after cleanup. 3rd Complete the Sanitary Sewer Spill Report.
4th PLACE THE FOLLOWING IN THIS ENVELOPE AND FORWARD TO YOUR SUPERVISOR:
 Completed Sanitary Sewer Spill Report
 Any other documentation you may have made
 Documentation of any notifications you made
1 SANITARY SEWER BACKUPS

TOPIC ATTACHMENT
Responding to Sanitary Sewer Backup C1
Release of Liability – Customer Declination of Cleaning Services C2 Customer Information Letter C3
Affected Property Log C4
First Responder Form C5
City Information Handout – “How Your Sewer System Works” C6 Hotel Selection Form C7
Building History Form C8
Lateral TV Report C9
Claim Form C10
Claims Submittal Checklist C11
Sewer Backup Field Forms Packet Assembly Instructions C12

ATTACHMENT C
1 RESPONDING TO A SANITARY SEWER BACKUP
Scene Supervisor
Perform initial evaluation of the spill and cause.

Is the sewer main
flowing?
Is there a property
line cleanout?
Is the property line
cleanout dry? 1. Send for any equipment and
staffing necessary to clear
the blockage. (See
Attachment G – Emergency
Contact Information.

2. Clear blockage (see
Attachment F for
instructions)
Contact the rodder to clear blockage

1. Rod line from Property Line Cleanout to main

2. Clean sewage & debris from lawn, parkway &
gutter

1. Explain to customer that the blockage is in their
lateral.

2. Recommend to customer they hire a contractor
to clear their line.

3. Suggest they look in the Yellow Pages under
Plumbers or Water Damage.

Complete Section D of Attachment C5 - 1st Responder
Form and forward to supervisor.

Did this clear
blockage?
Flush line from cleanout to main, taking care
to catch any debris at the nearest
downstream manhole to prevent a blockage
from re-occurring.

Vacuum line and send for the
lateral camera.

FOR A BROKEN LINE

3. Notify your supervisor.

4. Locate line break and determine depth.

CONTACT RESTORATION MANAGEMENT AT 1.800.400.5058

1. Describe incident.

2. Request a cleaning/restoration firm be dispatched.

3. Ask Restoration Management to call you back with an
estimated time of arrival for the cleanup firm. Relay this information to the customer.

Does the customer want a
cleaning service?

1. Have customer sign Cleaning Declination form
(Attachment C2).

2. Ask for permission to photograph the affected area. If they decline, note on the Cleaning Declination form
(Attachment C2).

3. Forward completed Cleaning Declination form to
Deputy Director of O&M.

4. Complete Section D of Attachment C5 - 1st Responder
Form and forward to Deputy Director of O&M.

Follow the instructions on the
front of the Sanitary Sewer
Backup Field Forms Packet.

GO TO SIDE 2
YES
YES
YES
YES
NO
NO
NO
NO
NO
YES
ATTACHMENT C1
2 RESPONDING TO A SANITARY SEWER BACKUP

START HERE
Did customer want a
cleaning service?
INDOOR RESPONSE PROCEDURES:

1. At all times be polite and courteous to the
customer - SEE APPENDIX E FOR TIPS!

2. Explain to the customer that a professional
cleaning contractor has been dispatched.

3. Turn off HVAC system to avoid
contaminating the HVAC system, if
necessary.

4. Block any floor vents to prevent sewage
from entering, if necessary.

5. Mitigate the flood damage using available
materials until the cleaning contractor
arrives (i.e., place booms/towels to
prevent the sewage from spreading -
WEAR APPROPRIATE PPE!)

6. Follow the instructions on the front of the
Sanitary Sewer Backup Customer Packet.

7. Wait for the Cleaning Contractor to arrive.

Go outside and look for a backflow
prevention device or cleanout. Look all
around the house/property.

Is there a backflow prevention
device or cleanout on the
affected building?
Photograph the backflow
prevention device or
cleanout.

Do you want the lateral
televised?
Has any sewage
spilled outside?

1. Complete a City Work
Order to have lateral
televised as soon as
possible.

2. Complete Lateral TV
Report

1. Estimate volume of the backup that
spilled into and out of the affected
property (see Attachment B3-B6 for
methods).

2. Document the method you used to
calculate the volume.

Is the volume of the backup
and any overflow outside
greater than 100 gallons?
Go to Attachment B1
side 2
and follow the SSO
Reporting Procedures.

Place the following into the Sewer Backup
Information Packet Envelope and forward to
Deputy Director of O&M:
 Signed copies of:
 Customer Information Letter
 Hotel Selection form, if applicable
 First Responder form
 Lateral TV Report, if applicable
 All photos
GO TO ATTACHMENT B1 AND

COMPLETE, THEN RETURN HERE

POINT PERSON
- GO TO ATTACHMENT C9 -

CLAIMS SUBMITTAL CHECKLIST
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
ATTACHMENT C1
CUSTOMER ACKNOWLEDGEMENT THAT THE CITY OF PATTERSON’S

OFFER OF SEWAGE CLEANING SERVICES HAVE BEEN DECLINED
Customer Name: _______________________________________________________________________________________________ Customer Address: _____________________________________________________________________________________________ Customer Phone: ______________________________________________________________________________________________ On (date) ________________ at (time) ________________ approximately ________________gallons of (check one) ☐ Sewage ☐ Grey Water ☐ Toilet Bowl Water ☐ Other
Overflowed from or odor emanating from (check one):
☐ Toilet ☐ Shower/Tub ☐ Washer
☐ Other  Specify: _____________________________________________________________________________________ The overflow affected the following areas (check one):
☐ Bathroom ☐ Hallway ☐ Kitchen ☐ Bedroom ☐ Garage ☐ Crawlspace ☐ Other  Specify: _____________________________________________________________________________________ The overflow affected the following materials (check one):
☐ Tile ☐ Linoleum ☐ Carpet ☐ Wood Flooring ☐ Other  Specify: _____________________ ☐ Area Rugs ☐Towels ☐Clothing ☐Misc  Specify: ______________________________ _____________________________________________________________________________________________________________ _____________________________________________________________________________________________________________ Photos ☐Were Taken ☐ Were Not Taken. Number of Photos: __________ The suspected cause of the overflow: ______________________________________________________________________________ _____________________________________________________________________________________________________________ _____________________________________________________________________________________________________________ This Form Completed By: ___________________________________ Date & Time: _________________________________________ CUSTOMER – PLEASE READ AND SIGN BELOW:

I/We acknowledge that the City of Patterson has offered to provide professional cleaning and decontamination services to remediate the sewage backup and/or overflow described above and that we declined the offer. We further understand and acknowledge that because we have declined, any necessary remediation activities will be conducted without the City of Patterson assistance and that the City of Patterson will not accept responsibility for work performed by persons other than those engaged by the City of Patterson.

City of Patterson will also not accept responsibility for any charges related to this incident that are not usual and customary.

The Information Above Was Explained To The Customer By (please print): ________________________________________________ Employee Signature: ______________________________________ Title: _______________________________________________ Customer Signature: _______________________________________ Date: ______________________________________________ Distribution Instructions – Top Copy To City of Patterson; Middle Copy To TPA; Bottom Copy To Customer ATTACHMENT C2

CITY OF PATTERSON

CUSTOMER INFORMATION REGARDING SEWER BACKUP CLAIMS
Address: ______________________________________________________________________________________________________ Dear Mr./Mrs. ____________________________________________________ DATE: _____________________________________ We recognize sewer back flow incidents can be stressful and require immediate response when all facts regarding how the incident occurred are unknown. Rest assured that we do all we can to prevent this type of event from occurring. Nevertheless, occasionally tree roots or other debris in the sewer lines cause a backup into homes immediately upstream of the blockage. At this time, the City of Patterson is investigating the cause of the incident.

If the City of Patterson is found to be responsible for the incident, we are committed to cleaning and restoring your property, and to protecting the health of those affected during the remediation process.

The cleaning contractor provided by the City of Patterson has been selected because of their adherence to established protocols that are designed to assure all parties thorough, cost-effective, and expeditious restoration services.

The company assigned to provide the necessary cleaning and restoration is Restoration Management and you can reach them directly at 800.400.5058.

If you wish to discuss this matter or submit a claim for damages, please contact any of the following:
☐ Ken Irwin, City Manager 209.895.8015 (office)
☐ Robert Andrade, Deputy Director of O&M 209.895.8162 (office) 209.652.0843 (cell) ☐ Thomas Kline, Risk Control Manager 916.244.1121 (office) ************************************************************************************************************ What you need to do now:

The City of Patterson has prepared this brief set of instructions to help you minimize the impact of the loss by responding promptly to the situation.
 Do not attempt to clean the area yourself, let the experts handle this.  Keep people and pets away from the affected area(s).
 Do not remove contaminated items from the area – the experts will handle these contents.  If you had recent plumbing work, contact your plumber or contractor  File your claim with the City of Patterson soon as practical –The California Government Code, Sections 900 - 960, requires filing a written claim and outlines specific timelines and notice procedures that must be used. ************************************************************************************************************ I/We acknowledge receipt of this letter.

Employee Signature: _________________________________ Date: ______________ Customer Signature: _________________________________ Date: ______________ Distribution Instructions – Top Copy To City of Patterson Middle Copy To TPA; Bottom Copy To Customer ATTACHMENT C3
1 AFFECTED PERSONAL PROPERTY INVENTORY LOG
INSTRUCTIONS: Please fill this form out as completely as possible and provide to:

Maricela Vela, City Clerk, 1 Plaza, Patterson, CA
Phone: 209.895.8014

QUANTITY

DESCRIPTION

OF EACH ITEM

WHERE PURCHASED

AGE COST

REPLACEMENT

STORE CITY VALUE
NAME: __________________________________________________________________ DATE: _______________________________ SIGNATURE: ___________________________________________________________________________________________________ ATTACHMENT C4
1 FIRST RESPONDER FORM
INSTRUCTIONS: City Staff to complete & forward to Utilities Line Maintenance Supervisor TIME STAFF ARRIVED ON-SITE: ___________
DID CUSTOMER CALL CLEANING CONTRACTOR? ☐Yes ☐No
IF YES, WHO & WHEN? ___________________________________________________________________________________

SECTION A
DATE: TIME: EMPLOYEE NAME:

IS THIS A BUSINESS OR A RESIDENCE: ☐ BUSINESS  TYPE: ________________________________________ ☐ RESIDENCE
CUSTOMER SPOKEN TO: PROPERTY MANAGERS/OWNERS:

STREET ADDRESS:

CITY, STATE AND ZIP:

PHONE:

STREET ADDRESS:

CITY, STATE AND ZIP:

PHONE:

CAUSE OF FLOODING:

LOCATION OFSEWER: ☐ STREET ☐ REAR EASEMENT ☐ MANHOLE # _______ TO ________ ☐ MAINLINE ☐ SERVICE LINE ☐ DOUBLE-WYE
DAMAGE: ☐ BLACK WATER (sewage) ☐ GREY WATER ☐ FRESH WATER IS NEAREST MANHOLE VISIBLY HIGHER THAN THE DRAIN THAT OVERFLOWED? ☐ Yes ☐ No # OF PEOPLE LIVING AT RESIDENCE/WORKING AT BLDG:

COMMENTS:

SECTION B DAMAGE ASSESSMENT
Approximate age of bldg: _______ # of Bathrooms: _______ # of Rooms Affected: _______ Approximate amount of overflow: _____ gallons Approximate time sewage has been sitting: _____ hrs/days Numbers of pictures taken: ____________ Digital or Film? __________ Does the Customer have a Backflow Prevention Device (BPD)? ☐ Yes ☐ No ☐ Unknown If yes, was the BPD operational at the time of the overflow? ☐ Yes ☐ No ☐ Unknown Have there ever been any previous overflows at this location? ☐ Yes ☐ No ☐ Unknown Type of flooring in the room(s) affected:
☐ Tile Condition of Tile and Seams (cracking, visible open spaces, etc):
☐ Carpet
☐ Wood
Condition of Flooring and Joints (cracking, visible open spaces, etc):
☐ Other Please Identify:

Has the Customer had any plumbing work done recently or has the area been remodeled? ☐ Yes ☐ No If yes, please describe:

Are there baseboards? ☐ No ☐ Yes Baseboard Material: _____________________________________ Condition of Baseboards:
☐ Baseboard bottom has tight seal with floor ☐ Baseboard top has tight seal with wall ☐ Baseboard has space between bottom and floor ☐ Baseboard has space between baseboard & wall ATTACHMENT C5
2 SECTION C LIVABILITY ASSESSMENT

SECTION D SANITARY SEWER LINE BLOCKAGE LOCATION

PLEASE CHECK THE BOX THAT

DESCRIBES YOUR OBSERVATIONS
Customer
Cleanout
Was:

City Cleanout Was
NonExistentFull Empty
NonExistent
Full
Empty
NOTES:

SECTION E CLEANING CONTRACTOR
Company Name: _____________________ Phone: ______________ Arrival Time: ____________________ Comments: _______________________________________________________________________________________________ _________________________________________________________________________________________________________ Is there sufficient non-contaminated living space
for residents to stay during cleaning?
STOP – Resident Can Stay In Premises

1. Contact Deputy Director of O&M or Deputy
Director of Public Works.

2. Explain the following:
a. There has been a serious sewer backup
b. Based on the Livability Assessment, the
customer should be temporarily
relocated
c. Request permission to present
Attachment C7 – Hotel Selection Form
(in envelope packet) to the customer

3. IF authorization is granted, then complete the
instructions at the top of Attachment C7 – Hotel
Selection Form (in envelope packet)
Is it after 8pm or will the cleaning &
disinfection be completed after 10pm?
Is there a functioning and noncontaminated
bathroom available?
Ask the resident to vacate the premises while the area is cleaned & disinfected.

Are there any residents that:

1. Is pregnant?

2. Has severe allergies/asthma?

3. Has respiratory problems?

4. Has a compromised immune system?
Is area a child or extended care facility?
Is food prep. area contaminated?
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
Place an X where the blockage occurred
Circle the areas where sewage overflowed/ backed-up
Affected
House
Upstream
House
Property Line
Direction of Flow
Manhole
1 HOW YOUR SEWER SYSTEM WORKS

PROVIDED BY THE CITY OF PATTERSON, CA

WHEREVER A SEWER SYSTEM EXISTS, SO DOES THE POTENTIAL FOR OVERFLOWS Sewage overflows occurs when sewer pipes are blocked or restricted, causing wastewater to back up in the pipe and flow out through manholes or other outlets. Most overflows are relatively small and can be stopped and cleaned up quickly. Left unattended, however, overflows can result in property damage, bad-smelling odors, and environmental problems. In a worst-case scenario, they can create public health and safety hazards.

Sewer lines can become blocked due to roots, grease buildup, or debris in the pipes. When this occurs, wastewater is stopped by the blockage and then backs up toward the first possible outlet. Most of the time this is a manhole. However, sometimes the outlet is a fixture or drain in a customer's home or business.

When a sewage backup occurs, the City responds immediately. Our crews locate the blockage and determine if it is in the public sewer; if it is, the crew removes the blockage and arranges to have the affected home or business cleaned up.

PROPERTY OWNERS ARE RESPONSIBLE FOR INTERNAL PLUMBING AND LATERAL PIPES However, if a backup occurs within your private internal plumbing or in the lateral pipe or side sewer that connects your property to the public sewer, this is your (or the property owner's) responsibility, and the City cannot remove the blockage or make the necessary repairs. You should contact a licensed plumbing contractor to make repairs.

OVERFLOWS ON PRIVATE PROPERTY CAN BE PREVENTED IN MOST CASES It is possible to prevent sewage backups with a plumbing fixture called a backwater overflow preventer. The chances are good that you already have one. If you don't you should have one installed as soon as possible to prevent sewage from backing up into your house should a blockage occur in the public sewer or in your lateral/side sewer. Make sure the device is not blocked or covered by landscaping.

DO YOU HAVE ONE IN YOUR YARD?
Backwater overflow preventers use a ball-check device that automatically opens if water begins to back up. This allows the overflow to occur outside the home. These devices are very effective at preventing overflows in interior fixtures or drains. They are available in a variety of models and price ranges. We recommend that these devices be installed by a licensed plumbing contractor.

SEE SIDE 2 FOR A PICTURE EXPLAINING HOW YOUR SEWER SYSTEM WORKS ATTACHMENT C6
2 1

HOTEL SELECTION FORM
INSTRUCTIONS TO EMPLOYEE:

1. Contact Robert Andrade, Deputy Director of O&M or Mike Willett, Director of Public Works to arrange for and authorize 1 Night’s Stay at one of the following hotels.

2. Explain to resident that additional nights and other incidentals will be addressed by the City’s insurance claims administrator (see CSJVRMA Risk Service contact info below) or the Deputy Director of O&M, Robert Andrade (contact info below).

3. Instruct the hotel & the resident that this emergency authorization is for LODGING ONLY – NO FOOD, MINIBAR, MOVIE, PHONE, or Other Charges.
************************************************************************************************************ INSTRUCTIONS TO RESIDENT: It is recommended that you temporarily relocate to one of the hotels listed below for your safety and convenience while your home is being cleaned. Please note that this Emergency Authorization is granted under the following terms and conditions:

1. This authorizes payment of 1 (one) night’s stay at one of the hotels listed below.

2. This authorization is good for room and tax only – no phone, food, minibar, movie, or other charges.

3. Additional nights and other allowances/incidentals may be discussed by contacting the City’s insurance claims administrator – CSJVRMA Risk Service at 1.800.541.4591 or the City of Patterson Deputy Director of O&M, Robert Andrade at 209.652.0843.
************************************************************************************************************ I/We have read and understood the terms and conditions under which this offer of temporary relocation is offered. Further, we agree to abide by the terms and conditions described herein.

Employee Signature: _________________________________ Date: ______________ Customer Signature: _________________________________ Date: ______________ ************************************************************************************************************ Best Western Inn
2959 Speno Dr.

Patterson, CA 95363
209.892.5300
Holiday Inn Express Westley North – Patterson Area
4525 Howard Rd.

Westley, CA 95387
209.894.8940
Distribution Instructions – Top Copy To City of Patterson; Middle Copy To TPA; Bottom Copy To Customer ATTACHMENT C7
1 BUILDING HISTORY FORM

PLEASE COMPLETE AS THOROUGHLY AS POSSIBLE
PERSON COMPLETING THIS FORM: DATE:

PHONE:

RESIDENT NAME: # OF RESIDENTS AT THIS ADDRESS:

APPROXIMATE AGES:

DATE OF OVERFLOW: APPROXIMATE GALLONS SPILLED:

WERE RESIDENTS RELOCATED TO A HOTEL? ☐ Yes ☐ No
If Yes, where:

IS RESIDENT THE OWNER? ☐ Yes ☐ No
If “NO”, provide following for property owner:

STREET ADDRESS:

CITY, STATE AND ZIP:

PHONE:

AFFECTED PROPERTY STREET ADDRESS:

CITY, STATE AND ZIP:

PHONE:

NAME OF EMPLOYEE(S) RESPONDING TO SPILL:

NAME OF CLEANING CONTRACTOR:

YEAR HOME BUILT: # OF BATHROOMS:
# OF ROOMS AFFECTED:

APPROXIMATE TIME SEWAGE WAS SITTING:

WAS PROPERTY FINISHED FLOOR ELEVATION DETERMINED?
☐ Yes ☐ No
IS FINISHED FLOOR 12” OR MORE BELOW NEAREST UPSTREAM
MANHOLE?
☐ Yes ☐ No
WAS A BPD INSTALLED ON PROPERTY? ☐ Yes ☐ No
WAS BPD FUNCTIONING? ☐ Yes ☐ No
WAS LATERAL TV’d? ☐ Yes ☐ No
If YES, please include copy of Lateral TV report
ANY PLUMBING PERMITS W/IN LAST 3 YEARS?
☐ Yes ☐ No
If “YES”, please describe:

ANY ACTIVE PLUMBING PROJECTS OBSERVED:
☐ Yes ☐ No
If YES, please describe:

WHEN WAS THIS LINE SEGMENT LAST
CLEANED?
REPAIRED (date & describe repairs):

SUSPECTED CAUSE OF OVERFLOW: HAVE THERE EVER BEEN ANY OTHER SPILLS AT THIS LOCATION? If so, when?
ATTACHMENT C8
1 LATERAL TV REPORT

PLEASE COMPLETE AS THOROUGHLY AS POSSIBLE
PERSON COMPLETING THIS FORM: DATE:

PHONE:

CAMERA TYPE: LOCATION OF CAMERA ENTRY:

LOCATION OF CAMERA STOP:

DESCRIBE AREA TV’d:

UPSTREAM MANHOLE #:

AFFECTED PROPERTY STREET ADDRESS:

CITY, STATE AND ZIP:

PHONE
PLEASE CHECK ALL THAT WERE DISCOVERED – Describe Extent & Location Using Camera Entry Point As Reference:
☐ Broken Lateral – Describe:
☐ Roots – Describe:
☐ Grease – Describe:
☐ Sag – Describe:
☐ Backflow Prevention Device (BPD) – Describe:
☐ Cleanout – Describe:
☐ Joint/Junction – Describe:
☐ Grade – Describe:
☐ Grit – Describe:
☐ Other – Describe
TIME OF OVERFLOW:

TIME BLOCKAGE RELIEVED:

TIME LATERAL TV’d:

NOTES/COMMENTS:

SIGNATURE OF EMPLOYEE PERFORMING TV WORK: DATE
ATTACHMENT C9
1 CLAIM FORM
(Please Type or Print)
Claim Against __________________________________________________________________________________________________ (Name of Entity)
Claimant’s Name _____________________________________________________S.S. #: ____________________________________ Claimant’s Date of Birth ____________________________________Telephone # (_____)____________________________________ Claimant’s Address _____________________________________________________________________________________________ Address where Notices about Claim are to be sent, if different from above:
_____________________________________________________________________________________________________________ Date of Incident/Accident/Arrest: _________________________________________________________________________________ Location of Incident/Accident/Arrest: ______________________________________________________________________________ What did Entity or Employee do to cause this Loss, Damage, or Injury? _____________________________________________________________________________________________________________ _____________________________________________________________________________________________________________ _____________________________________________________________________________________________________________ (Use Back of This Form or Separate Sheet if necessary to answer this Question in Detail.) What are the names of the Entity’s or Employees who caused this Loss, Damage, or Injury (if known)? _____________________________________________________________________________________________________________ _____________________________________________________________________________________________________________ What specific injuries, Damages or Losses did Claimant receive? _____________________________________________________________________________________________________________ _____________________________________________________________________________________________________________ (Use Back of This Form or Separate Sheet if necessary to answer this Question in Detail.) What Amount of Money is Claimant Seeking, or which is the appropriate court of Jurisdiction [Govt. code 910 (f)]? _____________________________________________________________________________________________________________ How was this Amount Calculated, if applicable (please itemize)? ________________________________________________________ (Use Back of This Form or Separate Sheet if necessary to answer this Question in Detail.) Date Signed: __________________________________Signature: _______________________________________________________ If signed by Representative:

Representative’s Name __________________________________________________________________________________ Address _______________________________________________________________________________________________ Telephone # ___________________________________________________________________________________________ Relationship to Claimant _________________________________________________________________________________ ATTACHMENT C10
2 DIAGRAMS
General Diagram
North
North
Street Incidents
3 PLEASE READ - IMPORTANT!
Your claim must be filed within 6 months of the Incident (Government Code 911.2) Your claim will be forwarded to the City's Risk Manager for investigation. Following that, your claim will be either settled or denied.

You will be notified by mail.

If your claim is denied, you will have 6 months from the date of denial to initiate an action against the city (Government code 945.6) Our hope is that you will be treated fairly. If you have any questions, please call. 1 CLAIMS SUBMITTAL CHECKLIST

DEPUTY DIRECTOR OF O&M
PERSON COMPILING THIS INFORMATION:

PHONE: DATE:

PLEASE ASSEMBLE THE ITEMS LISTED BELOW AND SEND AS SOON AS POSSIBLE

TO THE CITY MANAGER OR THEIR DESIGNEE
 Attachment C2 - Cleaning Declination, Signed Original (If applicable - i.e., customer refused cleaning services)  Attachment C3 - Customer Information Letter, Signed Original  Attachment C5 - First Responder
 Attachment C7 - Hotel Selection (If applicable - i.e., customer was relocated)  Attachment C8 - Building History
 Attachment C9 - Lateral TV Report (If applicable)
 All Photos Taken (hardcopy or electronic)
 Any other information you feel is important in this claim

DEPUTY DIRECTOR OF O&M
Complete the Building History form (Attachment C8)

CITY MANAGER OR DESIGNEE

1. Verify claims packet is complete.

2. Notify RMA of incoming claim by calling (CSJVRMA) Attn. Tom Kline, Risk Control Manager, [email protected] (916) 244-1121

3. Forward claims packet to:

Central San Joaquin Valley Risk Management Authority (CSJVRMA) 1750 Creekside Oaks Drive, Ste. 200, Sacramento, CA 95833 – 800.541.4591 Tom Kline, Risk Control Manager, [email protected] (916) 244-1121 ATTACHMENT C11
1 FIELD FORMS PACKET – SEWER BACKUP

ASSEMBLY INSTRUCTIONS
In order to properly gather and distribute all the necessary information at the scene of a sewer backup, it is recommended the Field Forms Packets be created and placed in all field vehicles that may be used to respond to a sewer backup. The following instructions will guide you through the assembly of the Field Forms Packet using the forms contained in Attachment C – Sewer Backups.

STEP ACTION
1 Determine how many packets you wish to assemble.
2 Obtain the same number of Tyvek (water & tear resistant) envelopes. 3 Place 1 copy of each of the following in each Tyvek envelope. ☐ Attachment C2 - Cleaning Declination NOTE THIS IS A 3-COPY NCR FORM ☐ Attachment C3 - Customer Information Letter NOTE THIS IS A 3-COPY NCR FORM ☐ Attachment C4 - Affected Personal Property Inventory Log ☐ Attachment C5 - First Responder Form
☐ Attachment C6 - Information Handout – “How Your Sewer System Works” ☐ Attachment C7 - Hotel Selection Form NOTE THIS IS A 3-COPY NCR FORM ☐ Attachment C8 - Building History Form
☐ Attachment C9 - Lateral TV Report (If applicable)
☐ Attachment C10 - Claim Form
☐ Attachment C11 - Claims Submittal Checklist
4 Tape or otherwise secure to the front of each envelope a copy of the Field Forms Packet Instructions (Master is located behind this page).
5 Place two staples through the top of the envelope.
6 Place at least 1 complete Field Forms Packet in each field vehicle that may be used to respond to a sewer backup.

ATTACHMENT C12
1 IN THE EVENT OF A SEWER BACKUP INTO A HOME/BUSINESS

READ ME FIRST

START HERE
Is this a small backup due
to cleaning activities?
Is the sewer
main flowing?
Is there a Property
Line cleanout?
Is the
Property Line
cleanout dry?
Does Customer
want a cleaning
service?

1. Send for any equipment and staffing necessary to clean the blockage (see Attachment G).

2. Clear blockage (see Attachment F for instructions).

See Attachment C1
for lateral clearing
SOP.

1. Complete only Attachment C2 -
Declination of Sewage Cleaning
Service.

2. Follow routing instructions on the
bottom of the form.

1. Inform customer that the blockage is in their lateral and that the City does not own or maintain private
service laterals.

2. Suggest they hire a contractor to clear their line.

3. Suggest they look under PLUMBERS or WATER
DAMAGE in the yellow pages.

THIS PACKET CONTAINS ALL THE FORMS YOU MUST COMPLETE/PROVIDE

1. Make sure the blockage has been cleared.

2. Contact EV-LINK (800.413.2999)
• Describe incident.
• Request a cleaning/restoration firm be dispatched.
• Ask EV-Link for an estimated time of arrival for the cleanup firm. Relay this information to the customer.

3. Open this packet and:
 REVIEW with the Customer the CUSTOMER INFORMATION LETTER - Customer Information Regarding Sewer Backup Claims (Attachment C2).
 Have customer sign the form and give them the bottom copy.  GIVE the Customer the CLAIM FORM.
 GIVE the Customer the AFFECTED PROPERTY LOG (Attachment C4).  COMPLETE the FIRST RESPONDER FORM (Attachment C5).
 IF the First Responder Form indicates the Customer should temporarily relocate, CONTACT the Deputy Director of O&M or Deputy Director of Public Works for permission to present the HOTEL SELECTION FORM (Attachment C7) to the customer.

4. Take pictures of ALL affected areas - collect photos from several angles.

5. Look for a backflow prevention device on the building service lateral and photograph. If you can’t locate one, determine if you want the lateral televised - if so, COMPLETE a City Work Order.

6. PLACE THE FOLLOWING IN THIS ENVELOPE AND FORWARD TO ROBERT ANDRADE, DEPUTY DIRECTOR OF O&M:
 Signed copies of:
 Customer Information Letter
 Hotel Selection form, if applicable
 First Responder Form
YES
YES
YES
YES
YES
NO NO
NO
NO
1 SEWER BACKUP CLAIMS HANDLING PROCEDURE SUMMARY

SEWER BACKUP CLAIMS HANDLING POLICY
It is the Policy of the City of Patterson that claim forms shall be offered to anyone wishing to file a claim. The following procedures will be observed for all sewer backup claims:

1. City staff will offer a City claim form to anyone experiencing a sewer backup resulting from an apparent blockage in the City owned sewer lines. The claim will be processed pursuant to the City and (CSJVRMA) procedures.

2. It is the responsibility of City staff to gather information regarding the incident and notify the City Manager or their designee.

3. It is the responsibility of the City Risk Manager or their designee to review all claims and to oversee the adjustment and administration of the claim to closure.

Sewer Backup Into a Building
City Collections Staff Respond
Does the backup appear to be as a result of a failure in the City-owned sewer lines? Inform Owner/Tenant that the cause of the backup is
not in the City-owned sewer lines.

City Collections Staff perform the following:

1. Relieve blockage.

2. Call out Restoration Firm.

3. Provide Owner/Tenant with the following:
a. Sewer Backup Customer Information Letter
b. “How Your Sewer System Works” Flyer
c. Claim Form
d. Damaged Personal Property Log
e. 1 Night Hotel Authorization Form, as necessary

4. Gather incident information.

5. Call Deputy Director of O&M or designee to notify of the incident.

6. Wait for Restoration Firm to Arrive.

7. Forward Incident Reports and Related Documents.

Deputy Director of O&M or Designee Perform the Following:

1. Provide Owner/Tenant with City Claim Form

2. Reviews Incident Reports and Forwards, As Appropriate, To City Manager:
(Robert Andrade Deputy Director of O&M
Office: 209.895.8162 Cell: 209.652.0843)
City Manager or Designee Perform the Following:

1. Reviews incident reports, claim form, and other
incident information and forwards, as appropriate,
to:

Attn. Tom Kline x 916.244.1121
1750 Creekside Oaks Drive, Ste. 200
Sacramento, CA 95833
Phone: 800.541.4591
Email: [email protected]

2. Communicates with Claimant, as appropriate.

3. Communicate with (CSJVRMA) Risk Services to
adjust and administer the claim to closure.
(CSJVRMA) Risk Services Performs the Following:

1. Initiate contact with the Owner/Tenant.

2. Make all future arrangements for lodging, food, and
incidentals.

3. Investigate loss.

4. Adjust and administer claim to closure.

NO YES

ATTACHMENT D
1 CUSTOMER RELATIONS PRACTICES

CUSTOMER RELATIONS
It is important for employees to communicate effectively with City of Patterson customers, especially in sewage backup situations.

How we communicate - on the phone, in writing, or in person -is how we are perceived. Good communication with the homeowner results in greater confidence in our ability to address the problem satisfactorily, less chance of having the homeowner prolong the claims process, and less chance of him/her exaggerating the damage done to their property.

As a representative of City of Patterson, you will occasionally have to deal with an irate homeowner. A sewer backup is a stressful event and even a reasonable homeowner can become irate should he/she perceive us as being indifferent, uncaring, unresponsive, or incompetent.

Although sometimes difficult, effective management of a sewage backup situation is critical. If it is not managed well, the situation can end up in a costly prolonged process with the homeowner. We want the homeowner to feel assured that we are responsive, and the homeowner’s best interest is a top priority.

A FEW COMMUNICATIONS TIPS

1. Give the homeowner ample time to explain the situation or to vent. Show interest in what the homeowner has to say, no matter how many times you have heard it before, or how well you understand the problem.

2. As soon as possible, let the customer know that you will determine if the source of the sewer backup is in the sewer main and, if it is, will have it corrected as quickly as you can.

3. Acknowledge the homeowner’s concerns. For example, if the homeowner seems angry or worried about property damage, say something like, “I understand you’re concerned about the possible damage to your property, but a professional cleanup crew can restore the area, and if it is determined that the City of Patterson is at fault, the property owner has the right to file a claim for any reasonable repairs or losses resulting from this incident.”

4. Express understanding and empathy for any inconveniences caused by the incident, but do not admit fault.

5. As much as possible, keep the homeowner informed on what is being done and what will be done to correct the problem.

6. Keep focused on getting the job done in a very professional manner. Don’t wander from the problem with too much unnecessary small talk with the homeowner.

7. Don’t find fault or lay blame on anyone.

ATTACHMENT E
1 HOW TO USE A HYDROFLUSHER

TO CLEAR A LINE BLOCKAGE
FOLLOW ALL REQUIRED SAFETY PROCEDURES!
☐ Ensure All Employees Are Equipped & Use All Appropriate PPE ☐ Ensure All Necessary Traffic Controls Are In Place
☐ Ensure All Safety Program Requirements Are Observed (i.e. Confined Space, Manhole Hazards, Respiratory Protection, etc.) Check up & downstream manholes to identify the location of the blockage STEP 1 – SETUP
☐ Position vehicle/sewer-cleaning equipment at downstream manhole from blockage ☐ On steep lines where the downstream manholes are less than 5 feet deep, necessary precautions to prevent secondary overflows at downstream manholes must be taken. Form a containment barricade near the downstream manhole with use of sandbags, etc.
☐ Position the water jet over the 1st empty manhole below the blockage ☐ Attach a leader hose (a hose of a different color) to the regular hose – this serves as a benchmark for insertion & retrieval (NOTE:

A leader hose helps prevent the hose from exiting the pipe prematurely & causing injury!) ☐ Select a PENETRATING nozzle with a small angle (i.e. 15-degrees) for blockages ☐ Install a nozzle extension between the end of the hose & the nozzle to prevent the nozzle and hose from turning up a service lateral
☐ IF USING A ROLLER GUIDE: Lower it into the manhole & lock it into place ☐ IF USING A TIGER TAIL: Insert the jet hose through it & tie the device in place to stabilize it ☐ Lower the hose, nozzle extension & nozzle into the manhole & into the pipe invert ☐ IF USING A ROLLER GUIDE: Insert the hose as far as possible into the pipe before using the lower roller guide & engaging the water pressure – 3-feet is minimum!
STEP 2 – HYDROFLUSHING
☐ Run the line with just enough pressure to reach the blockage. When you reach the blockage, the hose should stop. ☐ Adjust the water pressure to the level appropriate for this type of blockage, pipe, and situation. ☐ NOTE: In sewer lines where property owner toilets have bubbled or overflowed due to high pressure back flushing, a lower pressure must be used to prevent additional backups ☐ If the hose does not advance, pull back on it and then let go. Repeat the steps until the hose breaks through the blockage. ☐ If the hose breaks through and the line is still plugged, run the hose until you hit another plug, then repeat the steps again. ☐ Clear the blockage by working from the lower end to the higher end of the flow ☐ NOTE: Always jet the line a few feet at a time, returning the debris to the manhole - remove debris so further blockages are not created downstream
☐ Once you hear or see the rush of the water, turn off the pressure until the water level drops in the line. Once the flow is back to normal, run the hose up to the next manhole to ensure that the line is free of all blockages, then pull the hose back. Check the upstream manholes to make sure the line is running and the downstream manholes to verify debris did not slip by. ☐ Always rewind the jet hose with the water pressure on to avoid flattening the hose. ☐ NOTE: Always turn off the water pressure once you see the leader hose – failure to do so may result in serious injury!

ATTACHMENT F
1 EMERGENCY CONTACT INFORMATION
Emergency Contractors/Equipment Rental Vendors:

Name Services/Support Contact Phone
Ferguson Parts Chris 209.577.3333
Rain for Rent Storage Tanks Main Number 209.466.5602
Applegate Backhoe and Drilling Vactor/Jetter/Hydroflusher Rental Main Number 209.883.4915 Roto-Rooter Rodding/Sewer Backups Main Number 209.634.7804 Amerine Systems Pump Station Support Main Number 209.847.5968 HOWK Systems Pumps Main Number 209.529.4110
Shape Incorporated Pump Station Support Main Number 209.234.5909 Frank B Marks Sand/Gravel Main Number 209.862.2900
United Rentals Equipment Rental Phillip Gutierrez 209.948.9500 Safe T Lite Traffic Control/Barricades/Signs Main Number 209.522.8913 City Contacts:

Name Title Primary Phone Alternative Phone
Ken Irwin City Manager 209.895.8015 209.652.0052
Mike Willett Director of Public Works 209.895.8065 209.229.5810 Robert Andrade Deputy Director of O&M 209.895.8162 209.652.0843

ATTACHMENT G
1 ANNUAL REVIEW OF SPILL EMERGENCY

RESPONSE PLAN DOCUMENTATION
Annual Review of Spill Emergency Response Plan
Date Reviewer’s Name Level of Effectiveness
(Check one) Comments
☐ Not Effective
☐ Somewhat Effective
☐ Effective
☐ Very Effective
☐ Not Effective
☐ Somewhat Effective
☐ Effective
☐ Very Effective
☐ Not Effective
☐ Somewhat Effective
☐ Effective
☐ Very Effective
☐ Not Effective
☐ Somewhat Effective
☐ Effective
☐ Very Effective
☐ Not Effective
☐ Somewhat Effective
☐ Effective
☐ Very Effective
☐ Not Effective
☐ Somewhat Effective
☐ Effective
☐ Very Effective
☐ Not Effective
☐ Somewhat Effective
☐ Effective
☐ Very Effective
☐ Not Effective
☐ Somewhat Effective
☐ Effective
☐ Very Effective
☐ Not Effective
☐ Somewhat Effective
☐ Effective
☐ Very Effective
☐ Not Effective
☐ Somewhat Effective
☐ Effective
☐ Very Effective

ATTACHMENT H
1 WARNING RAW SEWAGE PUBLIC POSTING ATTACHMENT I
2 WARNING!
RAW

SEWAGE -
KEEP OUT!
City of Patterson
209.895.8060

Patterson City CouncilOctober 3, 2023

Patterson City Council
October 3, 2023