UNIVERSITY OF CALIFORNIA, DAVIS MEDICAL CENTER
SANITARY SEWER MANAGEMENT PLAN
UCDMC Sanitary Sewer Management Plan
1
TABLE OF CONTENTS
1.0
GOAL .............................................................................................................................................. 4
1.1
REGULATORY BACKGROUND
1.2
PURPOSE AND GOALS OF SSMP
1.3
WASTERWATER WORKING GROUP (UCDMC)
2.0
ORGANIZATION ADMINISTRATION AND MAINTENANCE ORGANIZATION………….5
2.1
MONITORING SYSTEM AND REPORTING SSOs
2.2
FACILITY DESCRIPTION
2.3
SANITARY SEWER SYSTEM DESCRIPTION
3.0
LEGAL AUTHORITY…………………………………………………………………………….7
4.0
OPERATION AND MAINTENANCE PROGRAM……………………………………………...7
5.0
DESIGN AND PERFORMANCE PROVISIONS……………………………………………….12
5.1
STANDARDS FOR INSTALLATION, REHABILITATION AND REPAIR
5.2
STANDARDS FOR INSPECTION AND TESTING OF NEW AND REHABILITATED
FACILITIES
6.0
OVERFLOW EMERGENCY RESPONSE PLAN………………………………………………12
6.1
OBJECTIVE AND PURPOSE
6.2
ROLES AND RESPONSIBILITIES
6.2.1 Environmental Health & Safety (EH&S)
6.2.2 Plant Operations & Maintenance (PO&M)
6.2.3 ParkinG & Transportaion Services (PTS)
6.2.4 Facilities Design and Construction (FD&C)
6.3
RECEIPT OF INFORMATION REGARDING AN OVERFLOW…………………….13
6.4
DISPATCH RESPONSIBILITY
6.5
FIRST RESPONDER ASSESSMENT OF OVERFLOW
6.6
OVERFLOW CORRECTION, CONTAINMENT, AND CLEANUP………………….15
6.7
REGULATORY NOTIFICATION PROCEDURES……………………………………16
6.8
ORAL NOTIFICATION
6.9
WRITTEN NOTIFICATION
6.10
TRAINING REQUIREMENTS
6.11
OVERFLOW EMERGENCY RESPONSE PLAN UPDATE…………………………..19
7.0
FOG CONTROL PROGRAM……………………………………………………………………20
8.0
SYSTEM EVALUATION AND CAPACITY ASSURANCE PLAN…………………………...20
9.0
MONITORING, MEASUREMENT AND PROGRAM MODIFICATIONS…………………...20
10.0
SSMP PROGRAM AUDITS……………………………………………………………………..21
11.0
COMMUNICATION PROGRAM……………………………………………………………….21
11.1
COMMUNICATION PLAN INFORMATION AND UPDATES
12.0
BIBLIOGRAPHY………………………………………………………………………………...21
UCDMC Sanitary Sewer Management Plan
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APPENDICES
A
UCDMC PROPERTY BOUNDARY AND SANITARY SEWER SYSTEM
B
SSO REPORT FORM
C
ANNUAL CHECKLIST
D
WATER QUALITY MONITORING PLAN
E
ESTIMATING SPILL VOLUMES
LIST OF FIGURES
2
Sanitary Sewer Administrative Organizational Chart ...................................................................... 6
LIST OF TABLES
4
Operation and Maintenance Program .............................................................................................. 8
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1.0
GOAL
1.1
Regulatory Background
This Sanitary Sewer Management Plan (SSMP) is required under Waste Discharge Requirements (WDR)
Order No. 2006-0003-DWQ, issued by the State Water Resources Control Board (SWRCB). The WDR
stipulates that the permitee, which includes the University of California, Davis Medical Center
(UCDMC), must develop and implement a Management Plan in order to reduce sanitary sewer overflows.
Additionally, the Management Plan provides measures to provide efficient and effective response to
overflows, and implement source control measures to minimize the introduction of grease and oils, and
other materials that may cause blockages. This Management Plan satisfies the requirements specified in
the WDR Order No. 2006-0003-DWQ, as well as the revisions presented in Order No. WQ 2008-0002EXEC and Order No. WQ 2013-0058-EXEC.
1.2
Purpose and Goals of the SSMP
This document has been developed to comply with WDR 2006-0003-DWQ and its amendments. The
WDR requires permittees to prepare and implement a SSMP in order to:
•
Provide a plan and schedule to properly manage, operate, and maintain all parts of the
sanitary sewer system;
•
Minimize infiltration/inflow (I/I); and
•
Reduce and prevent SSOs.
Sanitary sewer overflows, or SSOs, are overflows from sanitary sewer systems of domestic, industrial,
and/or commercial wastewater. SSOs may cause a public nuisance, particularly when untreated
wastewater is discharged to waters designated for contact recreation. SSOs can typically be prevented
with adequate and appropriate facilities, source control measures, and operation and maintenance of the
sanitary sewer system.
1.3
Wastewater Working Group - UCDMC
The University of California, Davis Medical Center has created a wastewater working group (WWG)
consisting of representatives from key departments and facilities to facilitate the implementation,
monitoring, and updating of the SSMP. Members of the WWG include the following departments and
groups:
•
Environmental Health and Safety (EH&S);
•
Plant Operations and Management (PO&M);
•
Facilities Design and Construction (FD&C);
•
Food and Nutrition Services (FNS), and
•
Other departments as necessary for a specific issue
The WWG’s responsibilities include the following:
•
Monitor and measure implementation of the plan and make modifications as necessary
(addressed in Section 9 of this plan).
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2.0
2.1
•
Meet biennially to recommendations for revising the SSMP based on the assessment of
the implementation of the plan (addressed in Section 10).
•
Review and evaluate response to overflows. As appropriate, update Overflow
Emergency Response Plan (addressed in Section 6).
Organization
Administration and Maintenance Organization
The administrative responsibility for the UCDMC sanitary sewer system is shared among several
departments including Environmental Health and Safety (EH&S), Plant Operations and Maintenance
(PO&M), Facilities Design and Construction (FD&C), and Food and Nutrition Services (FNS). The
responsibilities of each department are summarized below, and an organizational chart is included as
Figure 2-1.
EH&S: The Safety Officer or his designee is responsible providing general operational support, including
exposure control guidance, to PO&M.
PO&M: The Manager of PO&M is responsible for the overall operation and maintenance of the system
including oversight of any contractor making repairs on the system. The Principal Engineer is considered
the permittee (Legally Responsible Official) for the sanitary sewer system. The implementation of permit
requirements and reporting to regulatory agencies is the responsibility of the Principal Engineer, including
tracking of all SSOs (with assistance from EH&S). The Principal Engineer is responsible for directing
the development and maintenance of this SSMP,
FNS Operations: Grease traps are located within several food facilities. The managers of FNS are
responsible for the proper use and operation of the grease traps located at their facilities. FNS is also
responsible for the maintenance of the grease interceptor located at the Back Dock of the Ambulatory
Care Center (Bldg 98).
FD&C: The Environmental Programs Administrator will provide regulatory reporting services as well as
relevant regulatory compliance updates.
2.2
Facility Description
The UC Davis Medical Center is part of the University of California system, governed by the Regents of
the University of California and is an internationally recognized public teaching, health care, and research
institution. As shown on the map provided in Appendix A, UCDMC is generally bounded by V Street to
the north, Stockton Blvd. to the west, Broadway to the south, and 49th and 50th Streets to the east.
The 2012-2013 population, which included faculty and academic personnel, Residents and Fellows,
students and staff, was approximately 13,000.
2.3
Sanitary Sewer System Description
The UCDMC sanitary sewer system serves the Medical Center campus including the area roughly
bounded by V Street on the north, Stockton Blvd. on the west, Broadway to the south, and 49th/50th
Streets on the east. The UCDMC campus and the areas served by the UCDMC sanitary sewer system are
shown on the map provided in Appendix A.
The sanitary sewer system at UCDMC has been in use since 1929 and is comprised of over 9,000 linear
feet of collection laterals ranging from 4 to 18 inches in diameter; all of the sewer mains, both sanitary
UCDMC Sanitary Sewer Management Plan
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and combined, within the Medical Center boundaries are owned and maintained by the City of
Sacramento. With the exception of the grease interceptor located under the loading dock of the
Ambulatory Care Center (Bldg 98), all appurtenances (e.g., lift stations) for the system are located within
Med Center buildings, and any failure of such appurtenances will impact only the building interior if a
spill results.
Original pipe has been replaced as upgrades or repairs have been required or new facilities have been
constructed. The piping consists of a combination of vitrified clay, cast iron, polyvinyl chloride, asbestos
and cement. The system ultimately feeds to the Sacramento County Regional Wastewater Treatment
Plant in Elk Grove.
There are eleven building locations on the main campus that have lift stations; they include:
• Main Hospital (Bldg 01/1)
• University Tower (Bldg 01/2)
• Davis Tower (Bldg 70)
• Surgery and Emergency Services Pavilion (Bldg 10)
• Ambulatory Care Center (Bldg 98)
• Research II (Bldg 96)
• Research III (Bldg 95)
• Cancer Center (Bldg 93)
• Patient Support Services Building (Bldg 14)
• Cypress Building (Bldg 13)
• Central Energy Plant (Bldg 73)
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3.0
Legal Authority
The Reagents of the University of California is a Constitutional Corporation, organized under Article IX,
Section 9 of the California Constitution, with full authority over governance and management of the
University operations. Under this authority, the University of California has legal authority to:
4.0
•
Control infiltration and connections from inflow sources, including satellite systems.
•
Require that sewers and connections be properly designed and constructed.
•
Ensure proper installation, testing, and inspection of new and rehabilitated sewers (such
as new or rehabilitated collector sewers and new or rehabilitated laterals).
•
Limit fats and greases and other debris that may cause blockages in the collection system.
•
Prevent illicit discharges into its system (e.g., storm water or chemical dumping).
•
Ensure access for maintenance, inspection, or repairs of all portions of the system
operated by UCDMC.
Operation and Maintenance Program
In order to reduce and prevent SSOs, the SSMP establishes measures and activities to facilitate the proper
management, operation, and maintenance of all parts of the sanitary sewer system. Measures and
activities include maintaining system maps, scheduling routine maintenance, identifying, and addressing
system deficiencies, providing public education, and describing fiscal resources and training.
Table 4-1 presents the required elements for the SSMP. The table identifies each element and the person
and position at UCDMC that is responsible for that element.
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Table 4-1
Operation and Maintenance Program
UCDMC Operation and Maintenance Program
Responsible
Party
POC
Telephone
Number
Manager, Plant
Operations &
Maintenance
Charles
Witcher
734-5508
Principal
Engineer
Mike
Mosca
734-4130
AutoCAD
Analyst
Ken
Anderson
734-2466
Principal
Engineer
Mike
Mosca
734-4130
A. Operations & Maintenance
"Provide adequate operations and maintenance of
facilities and equipment."

Operation and maintenance of the sanitary sewer
is the responsibility of the UCDMC Plant
Operations & Maintenance department. This
includes maintaining all lines and lift stations. The
department is also the first responder to sanitary
sewer overflows.
B. Update Maps
"Maintain an up-to-date map of the collection system
showing all gravity line segments and manholes, pumping
facilities, pressure pipes and valves, and storm water
conveyance systems."

The maps of the sanitary sewer system are either
in AutoCAD or hard copy format.

The main campus is in AutoCAD format. The
map shows line size manhole location. Detail maps
are available.
C. Maintain Information for Establishing Priorities
"Maintain relevant information to establish and prioritize
appropriate SSMP [Waster Water Collection System
Management Plan] activities such as the elimination of
overflows and identify and illustrate trends in overflows."

PO&M/Principal Engineer is responsible for
maintaining recording regarding SSOs. An
overflow of any amount of wastewater are
reported to PO&M. PO&M tracks overflows and
assesses the frequency and volume of overflows
and works with facilities to reduce and prevent
SSOs.
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Table 4-1 (continued)
Operation and Maintenance Program
UCDMC Operation and Maintenance Program
Responsible
Party
POC
Telephone
Number
PO&M,
Preventive
Maintenance
Shop
Sue Carter
734-2265
Corey
Nommensen
734-3663
D. Preventive Maintenance
"Routine preventive maintenance O&M activities by
staff and contractors."
UCDMC has measures in place in order to keep the
system in good repair and prevent excessive
infiltration/inflow, service interruptions, and system
failures. This is done through scheduled regular
maintenance and cleaning of the collection system,
which is summarized below.
Routine Inspections:



Sump system/lift stations: inspected and cleaned
weekly.
Emergency standby generators: No-load runs
are conducted for 30 minutes every week. Load
tests are conducted annually
Manholes are the responsibility of the City of
Sacramento Utilities Department.
Routine Maintenance:


Root control: Maintenance from root intrusion is
conducted on an as-needed basis, based on the
results of routine inspections.
Odor Control: all lift stations are treated with a
degreaser and odor control product through an
automatic feed system.
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Table 4-1 (continued)
Operation and Maintenance Program
UCDMC Operation and Maintenance Program
Responsible
Party
POC
Telephone
Number
Charles
Witcher
734-5508
E. Scheduled Inspection and Condition Assessment
Manager, Plant
"Identify and prioritize structural deficiencies and
implement short-term and long-term rehabilitation actions to Operations &
Maintenance
address each deficiency."
Long-term planning:
UCDMC's system is supported by a routine maintenance
program. There are no major capital elements of the
system, which consists only of lift stations and laterals.
Lines are maintained/repaired on an as-needed basis.
Short-term actions:
Short-term actions are taken as an as-needed basis
depending on information gathered during routine
inspections. The Preventive Maintenance Shop either use
regular maintenance funding or initiate a Facilities
Design & Construction service request if the repair is out
of the scope of normal maintenance. Short-term actions
could include:
 Grease interceptor or trap installation
 Identification and replacement of laterals
 Root intrusion corrections
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Table 4-1 (continued)
Operation and Maintenance Program
UCDMC Operation and Maintenance Program
Responsible
Party
POC
Telephone
Number
EH&S
Specialist
Kaila
Benton-Vitz
734-3592
Principal
Engineer
Mike Mosca
734-4130
PO&M,
Preventive
Maintenance
Shop
Sue Carter
734-2265
Corey
Nommensen
734-3663
F. Training
"Provide training on a regular basis for staff collection
system operations, maintenance and monitoring and
determine if contractors' staffs are properly trained."
Training is conducted by both EH&S and PO&M.
The two departments are responsible for training
staff in the following areas:
EH&S:
Provides exposure control training materials to
PO&M staff.
PO&M



Provides annual technical training for PO&M
staff responding to sewer spills.
Provides technical training when new systems
are installed to operators of system.
Responsible for overseeing operations of
contractors. UCDMC utilizes a service
agreement contract for outside contractors to
perform maintenance on the sewer system. The
service agreement contract stipulates that
contractors’ staff must be properly trained.
G. Equipment
"Provide equipment and replacement parts inventories,
including identification of critical replacement parts."
A stock room of parts and equipment, including
emergency pumps is maintained; each lift station
has redundant pumps. Repairs that require
equipment or materials beyond existing capabilities
are executed by an outside contractor via a service
agreement contract.
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Table 4-1 (continued)
Operation and Maintenance Program
UCDMC Operation and Maintenance Program
Responsible
Party
POC
Telephone
Number
H. Private Property Overflow Plan
"Establish a plan for responding to overflows from private
property that discharge to public right of ways and storm
drains, to prevent discharges from overflows to surface waters
and storm drains."
The UCDMC sanitary sewer system is located on campus
property. Overflows in street areas are the responsibility of
the City of Sacramento, although UCDMC will provide
initial response to any street overflow within the UCDMC
footprint. Response to overflows is addresses in the
Overflow Emergency Response Plan. All overflows will be
responded to in the same manner.
5.0
Design and Performance Provisions
All new Sanitary Sewer Systems for new buildings on the UCDMC campus are designed
and installed to the City of Sacramento Standards, Section 26.
5.1
Standards for Installation, Rehabilitation and Repair
Installation, rehabilitation, and repair projects are inspected to the City of Sacramento
Standards, Section 26 by UCDMC inspectors.
5.2
Standards for Inspection and Testing of New and Rehabilitated Facilities
New installations are tested per City of Sacramento Standards, Section 26. Tests
conducted are either air pressure or water elevation. Rehabilitated systems are inspected
during rehabilitation and tested upon completion.
6.0
6.1
Overflow Emergency Response Plan
Objective and Purpose
The Overflow Emergency Response Plan (OERP) is developed as part of the UCDMC Sanitary Sewer
Management Plan. The purpose of the OERP is to establish guidelines and measures to protect public
health and the environment in case of an accidental overflow.
In the case of an overflow, UCDMC shall dispatch the appropriate crews to investigate, identify the
cause, and provide appropriate service to minimize the effects of the overflow on public health and
quality of surface waters. The OERP further specifies the required notification and reporting that is
necessary for local and state agencies.
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All utility personnel should be required to read the OERP and familiarize themselves with the procedures.
The OERP should be kept in an easily available location for all utility personnel and public access
reference.
6.2
Roles and Responsibilities
The departments of Environmental Health & Safety (EH&S), Plant Operations and Management
(PO&M), and Parking & Transportation Services (PTS) are the campus entities responsible for
implementing the OERP. The responsibilities of the departments are specified below.
6.2.1
Environmental Health & Safety (EH&S)
EH&S is responsible for exposure/hazard assessment & control, as requested by the Principal Engineer.
6.2.2
Plant Operations & Management (PO&M)
PO&M is responsible for:
a) Acting as first responder;
b) Providing and coordinating the operational aspects of the emergency in order to control and
mitigate the overflow; and,
c) Establishing preventive measures in order to minimize future accidental releases, and
d) Interface with external regulatory agencies.
6.2.3
Parking & Transportation Services (PTS)
TPS is responsible for site security, traffic control, and crowd control measures on as a needed basis.
6.2.4
Facilities Design and Construction (FD&C)
The FD&C Environmental Programs Administrator is responsible for:
a) External agency notification, and
b) Preparation of regulatory related documents.
6.3
Receipt of Information Regarding an Overflow
Overflows are typically detected and reported in one of two ways:
1.
By PO&M personnel during daily routines – PO&M personnel who discover a potential
overflow during their daily operations are responsible for immediately notifying the proper
supervisor and taking appropriate action
2.
By the public - Members of the university community who observe a sanitary sewer overflow
(SSO) may also call the campus emergency dispatch phone line at 911 (from a Med Center
phone), or the UCDMC Operator at 734-2555. Section 6.4 details dispatch responsibility.
Emergency response is available 24 hours per day, every day.
6.4
Dispatch Responsibility
When the dispatch personnel receive calls from the public, they will obtain all relevant information
available regarding the possible overflow including:
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1.
Time and date the call was received,
2.
Specific location of possible overflow,
3.
Description of the problem, and
4.
Caller’s name and call back phone number.
Campus dispatch immediately notifies the designated campus first responder for SSOs, who is a member
of the PO&M staff. Response time to a SSO will be less than an hour after the first call.
6.5
First Responder Assessment of Overflow
The failure of any element of the sanitary sewer system that threatens to cause or causes a SSO will be
responded to by the PO&M first responder. The first responder’s responsibility is to initiate isolation and
correction of the problem.
The first responder will:
1. Assess the failure of equipment or overflow release,
2. Call for assistance (if needed) including additional personnel, materials, supplies, and equipment.
If the spill is larger then they can adequately respond to, an outside contractor will be called,
3. Use appropriate Personal Protective Equipment,
4. Use appropriate safety precautionary measures including Lockout/Tagout protocol,
5. Obtain necessary equipment to respond to spill. PO&M maintains a supply of materials to
mitigate spills. Available equipment includes sand bags, by pass pumps, hoses, and front-end
loaders. Spill response materials are located in Parking Structure 1, Ground Floor 0100,
and in the Auxiliary Boiler Room in the Central Plant.
6. Assess if the overflow impacted private property. Be aware that UCDMC could face increased
liability for further damages inflicted to private property during such instances, and
7. Coordinate with hazardous materials response (see UCDMC P&P 1725) if there is a suspicious
substance (e.g. oil sheen, foam) to be found on the ground surface. Additionally, if there is a
suspicious odor (e.g. gasoline) not common to the sewer system, the UCDMC Health and Safety
Officer should be contacted.
8. Using the information in the Appendix E, “Estimating Spill Volume”, estimates the volume of the
spill and document the process used. Enter the information in the “UCDMC Sanitary Sewer
Overflow Reporting Matrix” in Attachment B.
Internal Notification Procedures
Based on the professional judgment of the Principal Engineer, other parties are notified.
Internal contact phone numbers:
Health and Safety Officer
8:00 am to 5:00 pm, Monday - Friday: 734-2740
After hours: pager 762-1994
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Environmental Compliance Administrator (regulatory notifications)
John Danby – Cell: 707-294-8022
Plant Operations & Maintenance
24 hour dispatch: 734-2763
UCD Police Dispatch
911 (from Medical Center phone)
UCDMC Operator
916-734-2011
6.6
Overflow Correction, Containment, and Clean-Up
Blocked sewers, pipe failures, or mechanical malfunctions can cause SSOs; mechanical malfunctions will
typically spill only within a building. The following are specific actions to be performed by the response
crews during an SSO.
1. Stop the overflow. If the failure is at a lift station, take the malfunctioning pump off line; if
appropriate, start the redundant pump. The goal is to prevent an SSO from migrating to any
sewer drain inlet (DI). If a drain inlet is down gradient from an SSO, the first order of business is
to use spill containment devices to block the DI in a manner that prevents the SSO from entering
the DI. Spill containment equipment is located in Parking Structure 1, Ground Floor 0100
the Auxiliary Boiler room in the Central Plant.
2. If necessary, call Parking Services (734-2687) to secure the affected area and post warning signs.
PTS has barricades and cones available to secure the site,
3. Contain the wastewater discharged to the maximum extent possible by utilizing spill containment
devices,
4. Determine the location and cause of the overflow. Assessment will include a check of the lift
station pumps and upstream and downstream manholes,
5. Implement appropriate corrective actions. This may include the use of vacuum trucks and
emergency pumps.
6. Clean and sanitize the affected area(s),
7. Finalize the documentation for the incident,
8. Review overall response with the responding parties, and
For a Category 1 SSO that discharges more than 50,000 gallons to surface waters, arrange for water
quality sampling to be conducted within 48 hours of the initial SSO notification. Such sampling shall
comply with the requirements of the Water Quality Monitoring Plan (see Appendix D).
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6.7
Categories
Category 1
Spill Categories and Definitions
(Table 1 – WQ 2013-0058-EXEC)
Definitions
Discharges of untreated or partially treated wastewater of any volume resulting from
UCDMC’s sanitary sewer system failure or flow condition that:
•
Reach surface water and/or reach a drainage channel tributary to a
surface water; or
•
Reach a Storm Sewer Drain Inlet and are not fully captured and returned to
the sanitary sewer system or not otherwise captured and disposed of
properly. Any volume of wastewater not recovered from the storm sewer is
considered to have reached surface water unless the storm drain system
discharges to a dedicated storm water or groundwater infiltration basin (e.g.,
infiltration pit, percolation pond).
Category 2
Discharges of untreated or partially treated wastewater of 1,000 gallons or greater
resulting from UCDMC’s sanitary sewer system failure or flow condition that do not
reach surface water, a drainage channel, or a storm sewer unless the entire SSO
discharged to the storm drain system is fully recovered and disposed of properly.
Category 3
All other discharges of untreated or partially treated wastewater resulting from
UCDMC’s sanitary sewer system failure or flow condition.
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6.8
Element
Notification
Notification, Reporting, Monitoring, and Record Keeping Requirements
(Table 2 – WQ 2013-0058-EXEC)
Requirement
Within two hours of becoming aware of any
Category 1 SSO greater than or equal to 1,000
gallons discharged to surface water or spilled in
a location where it probably will be discharged
to surface water, notify the California Office of
Emergency Services (Cal OES) and obtain a
notification control number.
Method
Call Cal OES at:
(800) 852-7550 (have information in
Appendix B available)
Reporting
⋅ Category 1 SSO: Submit draft report within
three
business days of becoming aware of the SSO
and
Certify within 15 calendar days of SSO end
date.
⋅ Category 2 SSO: Submit draft report within
three business days of becoming aware of the
SSO and certify within 15 calendar days of
the SSO end date.
⋅ Category 3 SSO: Submit certified report
within 30 calendar days of the end of month
in which SSO the occurred.
⋅ SSO Technical Report: Submit within 45
calendar days after the end date of any
Category 1 SSO in which 50,000 gallons or
greater are spilled to surface waters.
⋅ “No Spill” Certification: Certify that no
SSOs occurred within 30 calendar days of the
end of the month or, if reporting quarterly,
the quarter in which no SSOs occurred.
⋅ Collection System Questionnaire: Update
and certify every 12 months.
Water
Quality
Monitoring
Conduct water quality sampling within 48
These water quality results are
hours after initial SSO notification for Category required to be uploaded into CIWQS.
1 SSOs in which 50,000 gallons or greater are
spilled to surface waters.
Record
Keeping
SSO event records.
Enter data into the CIWQS SSO
Database http://ciwqs.waterboards.ca.gov
Records documenting Sanitary Sewer
Management Plan (SSMP) implementation and
changes/updates to the SSMP.
Records to document Water Quality
Monitoring for SSOs of 50,000 gallons or
greater spilled to surface waters.
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6.9
Notification Requirements
1. For any Category 1 SSO greater than or equal to 1,000 gallons that results in a discharge to a
surface water or spilled in a location where it probably will be discharged to surface
water, either directly or by way of a drainage channel or MS4, UCDMC shall, as soon as
possible, but not later than two (2) hours after (A) UCDMC has knowledge of the discharge,
(B) notification is possible, and (C) notification can be provided without substantially
impeding cleanup or other emergency measures, notify the Cal OES and obtain a notification
control number. Have the information required in Appendix B ready before notifying Cal OES.
Following the initial notification to Cal OES and until such time that UCDMC certifies the
SSO report in the CIWQS Online SSO Database, UCDMC shall provide updates to Cal OES
regarding substantial changes to the estimated volume of untreated or partially treated sewage
discharged and any substantial change(s) to known impact(s).
6.10
Sanitary Sewer Overflow Reporting to CIWQS – Timeframes
1. Category 1 and Category 2 SSOs – All SSOs that meet the criteria for Category 1 or
Category 2 SSOs shall be reported to the CIWQS Online SSO Database:
a.
b.
Draft reports for Category 1 and Category 2 SSOs shall be submitted to the CIWQS
Online SSO Database within three (3) business days of UCDMC becoming aware of the
SSO.
A final Category 1 or Category 2 SSO report shall be certified through the CIWQS
Online SSO Database within 15 calendar days of the end date of the SSO.
2. Category 3 SSOs – All SSOs that meet the above criteria for Category 3 SSOs shall be
reported to the CIWQS Online SSO Database and certified within 30 calendar days after the end
of the calendar month in which the SSO occurs (e.g., all Category 3 SSOs occurring in the
month of February shall be entered into the database and certified by March 30).
3. “No Spill” Certification – If there are no SSOs during the calendar month, the UCDMC LRO
shall either 1) certify, within 30 calendar days after the end of each calendar month, a “No Spill”
certification statement in the CIWQS Online SSO Database certifying that there were no SSOs
for the designated month, or 2) certify, quarterly within 30 calendar days after the end of each
quarter, “No Spill” certification statements in the CIWQS Online SSO Database certifying that
there were no SSOs for each month in the quarter being reported on. For quarterly reporting, the
quarters are Q1 - January/ February/ March, Q2 - April/May/June, Q3 - July/August/September,
and Q4 - October/November/December.
4. Amended SSO Reports – UCDMC may update or add additional information to a certified
SSO report within 120 calendar days after the SSO end date by amending the report or by adding
an attachment to the SSO report in the CIWQS Online SSO Database. After 120 days, the
enrollee may contact the SSO Program Manager to request to amend an SSO report if the enrollee
also submits justification for why the additional information was not available prior to the end of
the 120 days.
UCDMC Sanitary Sewer Management Plan
18
6.11
SSO Technical Report (for spills >50,000 gallons)
UCDMC shall submit an SSO Technical Report in the CIWQS Online SSO Database within 45
calendar days of the SSO end date for any SSO in which 50,000 gallons or greater are spilled to
surface waters. This report, which does not preclude the Water Boards from requiring more
detailed analyses if requested, shall include at a minimum, the following:
i. Causes and Circumstances of the SSO:
a.
Complete and detailed explanation of how and when the SSO was discovered.
b.
Diagram showing the SSO failure point, appearance point(s), and final destination(s).
c.
Detailed description of the methodology employed and available data used to
calculate the volume of the SSO and, if applicable, the SSO volume recovered
(see Appendix E for spill estimation process).
d.
Detailed description of the cause(s) of the SSO.
e.
Copies of original field crew records used to document the SSO.
f.
Historical maintenance records for the failure location.
ii. Enrollee’s Response to SSO:
g.
Chronological narrative description of all actions taken by enrollee to terminate the
spill.
h.
Explanation of how the SSMP Overflow Emergency Response plan was implemented to
respond to and mitigate the SSO.
i.
Final corrective action(s) completed and/or planned to be completed, including a
schedule for actions not yet completed.
iii. Water Quality Monitoring:
j.
Description of all water quality sampling activities conducted including analytical
results and evaluation of the results.
k.
Detailed location map illustrating all water quality sampling points.
6.12
CIWQS Online SSO Database Unavailability
In the event that the CIWQS Online SSO Database is not available, UCDMC must fax or e-mail all
required information to the appropriate Regional Water Board office in accordance with the time
schedules identified herein. In such event, UCDMC must also enter all required information into the
CIWQS Online SSO Database when the database becomes available.
UCDMC Sanitary Sewer Management Plan
19
6.13
Training Requirements
Training will be conducted for members of the departments that are responsible for implementing the
OERP which includes EH&S, PO&M, and PTS. EH&S is responsible for providing exposure control
training for PO&M and PTS staff. PO&M is responsible for providing technical training for PO&M staff
responding to sewer spills.
The OERP will be distributed to designated staff members of the departments as indicated below:
•
•
•
•
6.14
FD&C: John Danby, Environmental Programs Specialist
PO&M: Charles Witcher, Manager
PTS: Duane Hicks, Manager
EH&S: Kaila Benton-Vitz
Overflow Emergency Response Plan Update
OERP is reviewed on an annual basis by EH&S, FD&C, and PO&M. Interim changes are incorporated
into the document by EH&S on an as needed basis.
Comments, updates, and other relevant information should be submitted to PO&M for review,
consideration, and incorporation into OERP.
7.0
FOG Control Program
UCDMC has not experienced an SSO associated with a fat/oil/grease problem. The Order permits an
Enrollee to omit a FOG Program if FOG has not presented a problem. UCDMC has an active FOG
control program, including traps and interceptors at all FOG sources (kitchen/food service areas) which
are regularly maintained as part of the scheduled Preventative Maintenance Program. Kitchen drains are
sluiced weekly with hot water, followed by the application of a commercial bacteria/enzyme complex
which liquefies organic waste to keep the drains flowing freely. Grease trap interceptors are inspected
and cleaned quarterly.
8.0
System Evaluation and Capacity Assurance Plan
As the Medical Center plans new buildings, sewer capacity is purchased from the City of Sacramento,
which controls the mains which run through the campus. Any capacity evaluations are conducted as part
of the plan development process.
9.0
Monitoring, Measurement and Program Modifications
The WWG will monitor the effectiveness and implementation of the SSMP. Members of the WWG will
communicate with each periodically in order to monitor plan implementation. This can occur with a
meeting, conference call, or by e-mail. The UCDMC system is simple and does not require a complex
evaluative process.
Biennially, the WWG will evaluate the effectiveness of each element of the SSMP. During the biennial
review, the WWG will utilize the SSMP Checklist, which is included in Appendix C. The Checklist will
assist the WWG in determining if all elements of the SSMP are effective and are being implemented.
Program elements will be updated, as appropriate, based upon monitoring or performance evaluation.
The plan will be available for review at all times.
UCDMC Sanitary Sewer Management Plan
20
10.0
SSMP Program audits
At least biennially, the WWG will assess the effectiveness of the SSMP and will make updates to the
SSMP. EH&S will facilitate the WWG meetings.
The WWG will evaluate any SSOs and make recommendations to prevent them from reoccurring. As
part of the biannual plan update, the WWG will utilize a checklist of the SSMP requirements, which is
included in Appendix C. The checklist will assist the WWG in evaluating all the components of the Plan.
Through this review, the WWG will evaluate the SSMP, including its deficiencies, and recommend steps
to correct them.
11.0
Communication Program
11.1
Communicating Plan Information and Updates
Plant Operations and Maintenance will communicate with the campus community regarding the
development, implementation, and performance of the SSMP. The Plan will be provided to the Water
Board for community review and comment.
The SSMP will be updated as needed to describe any significant changes in proposed actions or
implementation schedules. The update will include available information on the performance of measures
that have been implemented. UCDMC will communicate as needed with interested parties regarding
implementation and performance of the SSMP. Interested parties include:
•
City of Sacramento,
•
Sacramento Regional County Sanitation District (SRCSD),
•
Central Valley RWQCB (Sacramento).
Any comments or questions regarding the development and implementation of the UCDMC SSMP can be
directed to:
12.0
•
John Danby, Environmental Program Administrator, john.danby@ucdmc.ucdavis.edu
(regulatory compliance issues), or
•
Mike Mosca, PE, PO&M Principal Engineer, michael.mosca@ucdmc.ucdavis.edu
(technical and implementation issues)
Bibliography
California Water Code of Regulations, Division 7. Porter-Cologne Water Quality Control Act.
January 1, 2006. http://www.swrcb.ca.gov/water_laws/docs/portercologne.pdf
State Water Resources Control Board
2006 Order No. 2006-0003-DWQ, Statewide General Waste Discharge Requirements for
Sanitary Sewer Systems. May 2,
2006. http://www.swrcb.ca.gov/resdec/wqorders/2006/wqo/wqo2006_0003.pdf
2013 Order No. WQ 2013-0058-EXEC, Amending Monitoring and Reporting Program for
(2006 Order)
http://www.waterboards.ca.gov/board_decisions/adopted_orders/water_quality/2013/wqo2013_0
058exec.pdf
UCDMC Sanitary Sewer Management Plan
21
APPENDIX A
UCDMC PROPERTY BOUNDARY AND SANITARY SEWER SYSTEM MAP
Detailed drawings w/GPS coordinates are available at PO&M and FD&C
UCDMC Sanitary Sewer Management Plan
22
APPENDIX B
SSO REPORT FORM
Section 1: check all of the appropriate boxes from the following and complete the appropriate sections of
the UCDMC Sanitary Sewer Overflow Reporting Matrix.
1.
This is a report of a sewage spill that has or can be expected to leave campus property or enter
a storm sewer inlet/drain.
a. Notify Mike Mosca (734-4130) immediately. Immediate reporting to OES may be
required. Mosca will make the determination and will contact John Danby of FD&C to
handle regulatory reporting.
2.
This is a report of a Category 1 sewage spill that has resulted in a discharge to a storm drain
that was not fully recovered.
a. Complete all sections marked as “Draft CAT 1” and provide to Mike Mosca within 2
business days. Then,
b. Complete all sections marked as “Cert CAT 1” and provide to Mike Mosca within 12
days of concluding the spill response.
3.
This is a report of a Category 2 sewage spill of 1000 gallons or more that does not reach a
storm drain.
a. Complete all sections marked as “Draft CAT 2”and provide to Mike Mosca within 2
business days, then
b. Complete all sections marked as “Cert CAT 2”and provide to Mike Mosca within 12
days of concluding the spill response.
4.
This is a report of a Category 3 spill of less than 1000 gallons.
a. Complete all sections marked as “Cert CAT 3” and forward to Mike Lewis no later than
the 15th day of the following month.
5.
There are no sewage spill(s) to report for the month of _______ 20__.
a. Check the above box; enter the month and year covered. Then, send this report to Mike
Mosca no later than the 15th day of the following month
b.
For All Reports: Mosca to review reports for technical accuracy, then provide to Danby within 24
hours of receipt for reporting.
For further information on reporting contact Mike Mosca at (916) 734-4130 or John Danby at
(916)734-7329/707-294-8022
UCDMC Sanitary Sewer Management Plan
23
Draft CAT 1
Cert CAT 1
Draft CAT 2
Cert CAT 2
Cert CAT 3
UCDMC SANITARY SEWER OVERFLOW REPORTING MATRIX
X
X
X
X
X
X
X
X
X
X
2. SSO Location Name:_____________________________________
X
X
X
X
X
3. Location of the overflow event (SSO) by entering GPS coordinates. If a single
overflow event results in multiple appearance points, provide GPS coordinates
for the appearance point closest to the failure point and describe each additional
appearance point in the SSO appearance point explanation field.
a. Location 1 Coordinates:__________________________________
b. Location 2 Coordinates:__________________________________
c. Location 3 Coordinates:__________________________________
X
X
X
X
X
4. Did the SSO reach surface water, a drainage channel, or entered and was
discharged from a drainage structure? _____________
X
X
X
X
5. Did the SSO reach a storm drain system? ________________
X
X
X
X
X
6. Was the total SSO volume that reached a storm drain system was fully
recovered? ___________
X
X
X
X
X
7. Estimate of the SSO volume, inclusive of all discharge point(s). ___________
Gallons.
X
X
X
X
X
8. Estimate of the SSO volume that reached surface water, a drainage channel, or
was not recovered from a storm drain. ____________ Gallons.
X
X
X
X
X
9. Estimate of the SSO volume recovered (if applicable). ____________ Gallons.
X
X
X
X
X
10.
X
X
X
X
X
11. Description and location of SSO appearance point(s). If a single sanitary
sewer system failure results in multiple SSO appearance points, each appearance
point must be described. Match to the GPS coordinates in item 3, above.
a. Location 1:__________________________________
b. Location 2:__________________________________
c. Location 3:__________________________________
X
X
X
X
X
12.
X
X
X
X
X
13. Date and time that Mike Mosca was notified of the
SSO:__________________________.
X
X
X
X
X
14.
X
X
X
1. SSO Contact Information: Person who can answer specific questions about the
SSO being reported.
Name:______________________________
Phone No: __________________________
Number of SSO appearance point(s): ____________
SSO start date and time: ______________________________
Estimated operator arrival time:________________________.
15. For spills greater than or equal to 1,000 gallons, the date and time Cal OES
was called.
UCDMC Sanitary Sewer Management Plan
24
________________________________________________
X
X
16. For spills greater than or equal to 1,000 gallons, the Cal OES control
number.______________________________________
X
X
X
1. Description of SSO destination(s) [where the spill ended up]: ________
_______________________________________________________________
_______________________________________________________________
____________.
X
X
X
2. SSO end date and time: _________________________________.
X
X
X
3. SSO causes (mainline blockage, roots, etc.).______________________
_________________________________________________________
X
X
X
4. SSO failure point (main, lateral, etc.):____________________________
X
X
X
5. Was the spill was associated with a storm event?______________.
X
X
X
6. Description of spill corrective action, including steps planned or taken to
reduce, eliminate, and prevent reoccurrence of the overflow; and a
schedule of major milestones for those steps. [provide in a separate
document]
X
X
7. Description of spill response activities. [provide in a separate document]
X
X
X
X
8. Spill response completion date:________________________.
9. Whether or not there is an ongoing investigation, the reasons for the
investigation and the expected date of completion:________________
________________________________________________________
______________________________________________________________
__________________________________________________
X
10. Whether or not a beach closure occurred or may have occurred as a result
of the SSO:____________________________________ .
X
11. Were health warnings were posted as a result of the SSO?__________
X
12. Name of beach(es) closed and/or impacted:____________________
______________________________________________________
X
13. Name of surface water(s) impacted:____________________________
________________________________________________________
X
14. If water quality samples were collected, identify parameters the water quality
samples were analyzed for:_____________________________
_________________________________________________________
X
15. If water quality samples were taken, identify which regulatory agencies
received sample results (if applicable): _______________
_______________________________________________________
X
16. Description of methodology(ies) and type of data relied upon for
estimations of the SSO volume discharged and
recovered:______________________________________________________________________________
X
SSO Certification: Upon SSO Certification, the CIWQS Online SSO Database
will issue a final SSO identification (ID) number.
UCDMC Sanitary Sewer Management Plan
25
Section 4: Administration Use only.
OES control number (if applicable)
County Health officer contacted (if applicable)
Date/time OES was called (if applicable)
Date/time County Health Officer contacted
(if applicable)
Date initial report submitted to online SSO system
Name of person submitting report
Certification #
Date final report submitted to online SSO system
Name of person submitting report
Certification #
UCDMC Sanitary Sewer Management Plan
26
APPENDIX C
ANNUAL CHECKLIST
ANNUAL CHECKLIST FOR
IMPLEMENTATION OF SSMP
UC DAVIS MEDICAL CENTER
SITE:
DATE:
Proposed Attendees:
Annual review of the SSMP is conducted through the WWG which consists of the representatives from
the following departments:
• Environmental Health and Safety;
• Facilities Design and Construction
• Plant Operations and Management; and
• Food and Nutrition Services
Agenda:
The SSMP consists of eleven sections which are listed below. Members should each have a copy of the
SSMP and use the following checklist to evaluate if the plan is up-to-date, and evaluate the effectiveness
and implementation of the SSMP.
I.
Goals
The goal of the SSMP is to prevent overflows and to provide a plan and
schedule for implementation of measures to prevent overflows. This
annual review is to assess the effectiveness of the plan
II.
III.
Organization

Meets
Needs
Complete
Revision


Needs
Complete
Revision
Review Figure 2-1 for any changes regarding the administrative and
maintenance organization of departments responsible for the sanitary
sewer.



Review description of sanitary sewer (Section 2.4). Have there been
any additions or changes to the system?



Legal Authority
Review Section III of the SSMP to ensure elements are current and
update as necessary.
IV.
Meets
Measures and Activities
UCDMC Sanitary Sewer Management Plan
Meets
Needs
Complete
Revision


Meets
Needs
Revision
27

Complete
The elements of the measures and activities portion of the SSMP is implemented by EH&S, PO&M, and
Food and Nutrition Services. The elements are specified in Table 4-1 in the SSMP. In order to ensure the
Measures and Activities are being implemented, address the following questions which reference Table 41 in the SSMP.
Part A Is the information up-to-date?



Part B Are the maps of the sanitary sewer up-to-date?






Part C Were records regarding the frequency of flow and volume of overflows
maintained?



Part D Are records (such as work orders) available to indicate that the routine
inspections and maintenance activities specified in Table 4-1 were
completed?



Part E Do any structural deficiencies exist within the systems that are not yet
being addressed in the short or long term planning?



Part F Are there records of yearly training events conducted by EH&S (for
exposure control) and PO&M (for technical training regarding response
to sewer spills)?



Part G Is there a list of “critical items” that must always be in stock?









Have all members of the email distribution list been contacted
regarding the status of the SSMP?



Were there any overflows to private property in the last year?



Did the plan facilitate a satisfactory response?



The requirements of this section are reviewed in Section 8.



Part K Were there adequate fiscal resources for operation of the system
changed in the past year?



Part L Have there been any changes in the organizational structure?






Is the required information shown on the maps?
Is the status of the inventory up-to-date?
Part H Is an up-to-date copy of the SSMP on the UCDMC Website?
Part I
Part J
Has there been additional staff members hired to operate and maintain
the system?
V.
Design and Performance Provisions
Meets
Review design and construction standards and specifications; update as
necessary.

Needs
Complete
Revision

VI.
Monitoring, Measurement, and Plan Modifications
Requirements of this section are being met through the annual review by the SSMP.
UCDMC Sanitary Sewer Management Plan
28

Needs
Complete
Revision
The elements of the OERP are implemented by PO&M, EH&S, and Parking & Transportation Services.
The OERP is included in Section 6 of the SSMP. Review for any updates. Additionally, address the
following questions which address requirements specified in the general permit:
VII.
Overflow Emergency Response Plan
Meets
Were there any SSOs during the reporting period?
No
Yes
Part A Were the SSOs responded to in a timely manner



Part B Were SSOs responded to by appropriate staff?






Part C If there was a SSO, were the appropriate agencies contacted?



Part D Are records available for training events that were conducted by EH&S
and FM?



Part E If a SSO event required traffic and crowd control, was response by
P&TS satisfactory?



Part F During a SSO event, were the appropriate materials available for spill
response?



Part G If contractors were required to respond to a SSO, was the response
satisfactory?



Part H Were SSOs responded to within a half hour from the first call?



Were appropriate actions implemented to contain overflow?
VIII. FOG Control Program
UCDMC has opted to not include FOG Control due to lack of prior FOG incidents.
IX.
System Evaluation and Capacity Assurance Plan
Has there been any significant change in proposed actions or
implementation schedules in the last year? If so, update plan
accordingly. Updates should include available information on the
performance of measures that have been implemented.
X.
SSMP Program Audits
Meets

Meets
Needs
Complete
Revision


Needs
Complete
Revision
This section is being met with this checklist.
Needs
Complete
Revision
EH&S will communicate with the affected community regarding the development, implementation, and
performance of the SSMP. The Plan will be posted on the UC Davis Medical Center website for the
affected community to review and comment on.



Has there been any significant change in proposed actions or
implementation schedules in the last year? If so, update plan
accordingly. Updates should include available information on the
performance of measures that have been implemented.
XI.
Time Schedule/Communication
UCDMC Sanitary Sewer Management Plan
Meets
29
APPENDIX D
WATER QUALITY MONITORING PLAN
UCDMC Sanitary Sewer Management Plan
31
Contents
M AY
2 0 1 4 ........................................................................................................................................................1
1
A
PROJECT MANAGEMENT ................................................................................................................1
A.1
A.2
PROJECT ORGANIZATION ..........................................................................................................................1
BACKGROUND...........................................................................................................................................1
B
DATA GENERATION AND ACQUISITION ....................................................................................3
B.1
B.1.1
B.1.2
B.2
B.2.1
B.2.2
B.3
B.3.1
B.3.2
B.4
B.4.1
B.4.2
B.4.3
C
SAMPLING PROCESS ..................................................................................................................................3
Sampling Event Timing ..........................................................................................................................3
Monitoring Site Locations .....................................................................................................................3
EQUIPMENT PREPARATION........................................................................................................................3
Sampling Containers..............................................................................................................................4
Field Meter Calibration .........................................................................................................................4
WATER QUALITY MONITORING ................................................................................................................4
Spill Travel Time....................................................................................................................................5
Sample Collection Methods ...................................................................................................................5
SAMPLE HANDLING AND CUSTODY ..........................................................................................................6
Sample Bottle Labels .............................................................................................................................7
Transport ...............................................................................................................................................7
Chain of Custody Form..........................................................................................................................8
REPORTING .........................................................................................................................................8
List of Tables
Table 1. Project Contact List .........................................................................................................................................1
Table 2. Monitoring Equipment List .............................................................................................................................3
Table 3. Constituents to be Analyzed, Sample Volume Required, and Sample Type ...................................................4
Table 4. Constituent Hold Times and Analytical Methods ............................................................................................7
Table 5. Site Names for Sample Handling.....................................................................................................................7
Table 6. Notification and Reporting Timeline ...............................................................................................................8
List of Figures
Figure 1. SSO Action Flow Chart..................................................................................................................................2
List of Attachments
A
Field Forms
B
Chain of Custody Forms (CoCs)
C
Reporting
A PROJECT MANAGEMENT
A.1 PROJECT ORGANIZATION
This monitoring program will be conducted under the direction of the University of California Davis Medical Center
(UCDMC) in partnership with Precept Environmental, Inc (PEI). Associated Laboratories will serve as the primary
laboratory, but alternatives might be used due to logistics and timing. The Project Contact list is provided below.
Table 1. Project Contact List
Name
Role
Company
Phone Number
Mike Mosca
Principal Engineer
UCDMC
916-734-4130 (office)
916-439-7975 (cell)
John Danby
Environmental Programs
Coordinator
UCDMC
916-734-7329 (office)
707-294-8022 (cell)
Jessica Bradbury
Project Advisor
Precept
Environmental, Inc.
888-822-3337 (office)
916-628-9790
Danielle Roberts
Laboratory Project
Manager
Associated
Laboratories
714-920-5157
A.2 BACKGROUND
In 2006, the State Water Resources Control Board (State Water Board) adopted Statewide General Waste Discharge
Requirements for Sanitary Sewer Systems (SSS WDRs), Order No. 2006-0003-DWQ. The Monitoring and
Reporting Program (MRP) established monitoring, record keeping, reporting, and public notification requirements.
On September 9, 2013, Order No. WQ 2013-0058-EXEC became effective that clarified and expanded requirements
of the original MRP and defined new sanitary sewer overflow (SSO) categories. The SSO definitions, as well as the
notification, monitoring, and technical reporting requirements are shown in Figure 1.
This monitoring plan addresses water quality monitoring requirements for Category 1 SSOs that are greater than
or equal to 50,000 gallons. As defined by Order No. WQ 2013-0058-EXEC, the following elements must be
included in an SSO Water Quality Monitoring Plan to comply with subsection D.7(v) of the SSS WDRs:
1.
Protocols for water quality monitoring.
2.
Account for spill travel time in the surface water and scenarios where monitoring may not be possible (e.g.
safety, access restrictions, etc.).
3.
Water quality monitoring analyses for ammonia and bacterial indicators to be performed by an accredited
or certified laboratory.
4.
Procedures for proper maintenance and calibration of monitoring instruments and devices used to
implement the SSO Water Quality Monitoring Program and documentation of maintenance and calibration,
as necessary, to ensure their continued accuracy.
5.
Water quality sampling within 48 hours of UCD-MC becoming aware of the SSO, for, at a minimum, the
following constituents:
a.
Ammonia
b.
Total Coliform
UCD-MC
SSO Monitoring Plan
1
May 2014
Figure 1. SSO Action Flow Chart (Based on Order No. WQ 2013-0058-EXEC)
UCD-MC
SSO Monitoring Plan
2
May 2014
B DATA GENERATION AND ACQUISITION
B.1
SAMPLING PROCESS
B.1.1 Sampling Event Timing
The Principal Engineer will determine when the field crew will be mobilized to sample the receiving water.
Sampling must be conducted within 48 hours after initial Category 1 SSO and spill volume notification. The
Principal Engineer will target daylight sampling within the first 24 hours of the SSO notification, but sample timing
may be shifted due to safety and logistical issues. It may be appropriate to conduct follow-up monitoring by
sampling and/or visual inspection, depending on the original monitoring results. For example, if an impact from the
SSO is observed, follow-up monitoring could be conducted until the water body has reverted to an estimated
baseline condition. The Principal Engineer will assess the severity of the SSO and its potential impact and direct
any follow-up monitoring.
Sampling will not be conducted if there are any concerns regarding field crew safety. These concerns may include
heavy rain events, which compromise access points through flooding and swift currents. Thunderstorms will also be
avoided when lightning is occurring. Sampling will only be conducted if there are at least two members of the field
crew team available.
B.1.2 Monitoring Site Locations
Upon notice of a Category 1 SSO, the Principal Engineer will contact PEI and decide where samples will be
collected. At a minimum, sampling will occur where the SSO enters the surface water body, 100 feet upstream of
the SSO entry point, and at least one point downstream of the SSO entry point. The downstream location(s) will be
determined from visual monitoring and estimated spill travel time (see Section B.3.1).
Upon arrival at the monitoring sites, PEI representatives will consult with the Principal Engineer and determine the
best locations to sample by assessing the hydrology of the receiving water and any safety precautions. PEI
representatives will look for locations where the receiving water can easily be entered or sampled mid-channel by a
grab pole. Once the sampling site location is selected, but before sampling starts, the latitude and longitude of the
sampling location will be entered into the Field Form (APPENDIX A).
B.2 EQUIPMENT PREPARATION
PEI will provide all necessary supplies and sampling kits to conduct a monitoring event. Table 2 lists the equipment
and supplies that are commonly found in the sampling kit.
Table 2. Monitoring Equipment List
Storm Kit
Spare batteries for field meter (6)
Spare sample labels
Pencils (2) and waterproof pens/markers (2)
Diagonal clippers
Electrical tape
Cable ties (assorted sizes)
Utility knife
Zip-lock baggies (assorted sizes)
Powder-free nitrile gloves
Rubber bands, heavy duty
UCD-MC
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May 2014
Camera
Duct tape
GPS Device
Camera
SSO Water Quality Monitoring Plan
Log books/ Field forms
Chain-of-custody forms
New sample bottles
Intermediate containers
Flow meters
Coolers and ice
Cellular phone
Any necessary safety gear
Grab pole
Umbrella
Paper towels
Trash bags
B.2.1 Sampling Containers
PEI representatives will prepare a supply of sampling bottles for at least 4 events. Table 3 includes the required
bottle types, sample volumes, and preservatives for ammonia and total coliform samples.
Table 3. Constituents to be Analyzed, Sample Volume Required, and Sample Type
Constituent
Optimum
Vol. (L)
Min. Vol.
(L)
Collection
Method
Bottle Type
Preservation
Analytical
Lab
Ammonia
(NH 3 )
0.500
0.100
Direct Fill
500mL Plastic H 2 SO 4 , <6° C
Associated
Laboratories
Total Coliform
0.100
0.100
Direct Fill
100mL Sterile
Plastic
Associated
Laboratories
<6° C
B.2.2 Field Meter Calibration
PEI will deploy field meters that are properly calibrated and maintained. Calibrations will be performed according to
the methods and frequency recommended by the equipment manufacturer.
B.3 WATER QUALITY MONITORING
PEI representatives will be responsible for the following tasks upon arrival at the monitoring location:
1.
Contact the Principal Engineer and determine best sampling locations and record latitude and longitude
readings for the upstream, SSO entry point, and downstream sampling sites.
2.
Calculate spill travel time at the downstream monitoring site.
3.
Collect water quality samples in the following order: first at the SSO entry point, second at the downstream
site(s), and third at the upstream monitoring site.
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May 2014
4.
Complete all field forms and prepare the samples for delivery to the laboratory.
The following sections outline the necessary steps PEI representatives must take when performing the above actions.
B.3.1 Spill Travel Time
PEI representatives in consultation with UCDMC SSO responders will estimate spill travel time by calculating
travel time within enclosed storm drains (distance traveled ∕initial spill rate) and within open surface waters. Travel
time within the open surface waters can be determined two different ways (noted below) depending on the
accessibility and safety of the monitoring site.
B.3.1.1 Velocity Probe
Using a velocity probe is the preferred method of spill travel time calculation, but it requires extra safety
precautions, since the sampling crew or on site SSO first responders will have to wade and cross the surface water
body.
1.
Ensure that the receiving water body is flowing at a safe rate and its span can be crossed by wading.
2.
One person will be responsible for using the velocity probe while another will stand on the shore and
record the readings.
3.
The technician with the velocity probe with the velocity probe will enter the surface water at the shore and
begin to take a velocity measurement, roughly six inches below the surface. They will wait for the reading
to stabilize before reporting the value to the recorder.
4.
The technician will then move the velocity probe two feet further into the surface water body and make
another measurement. This will continue until the entire span of the receiving water body has been
measured.
5.
The technician will not cross into any unsafe portions of the receiving water body and will note on the Field
Form if the measurements are only for a portion of the channel.
B.3.1.2 Visual Velocity Estimation
If the receiving water body is unsafe to enter, the velocity can be measured by observing floating debris.
1.
The technicians will stand on the edge of the channel, 30 feet apart.
2.
The person standing upstream will indicate when a large piece of debris passes their point. At this time the
person standing downstream will start timing.
3.
Once the same piece of debris passes the person, they will stop timing and calculating the velocity (ft/sec)
by dividing 30 feet by the number of seconds it took for the debris to travel that length.
If there isn’t any large debris floating in the surface water, the upstream person can use a nearby stick or other
buoyant object.
B.3.2
Sample Collection Methods
Sample collection methods will vary depending on the surface water and the safety of the field crews. Clean,
powder-free, nitrile gloves will be worn for all bottle handling. The direct fill sample collection method is the
preferred sampling method, since it does not use an intermediate container. In cases where the direct fill method
cannot be used due to accessibility or safety an intermediate bottle and a grab pole can be used.
UCD-MC
SSO Monitoring Plan
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May 2014
B.3.2.1 Direct Fill Sample Collection
The direct fill sample collection method will be used in cases where the surface water can be entered safely by the
field personnel. Technicians will wear waders and ensure that the water level and velocity of the surface water are
low enough to provide a safe entry and sampling environment.
Ammonia and bacteriological sample bottles will be filled by direct submersion to approximately mid-depth as
follows.
1.
Wade to approximately the area of the water body with the highest flow rate and face upstream. This will
most likely be midstream, but can be in a different portion of the stream, depending on the hydrology.
2.
Submerge the sample bottle with its cap on to approximately mid-depth at a location of significant flow
(avoid stagnant water). Hold the bottle upright under the surface while it is still capped.
3.
Open the lid carefully just a little to let water run in. Fill the bottle and screw the cap tightly while the bottle
is still underneath the surface.
4.
Remove bottle from stream and place on ice.
B.3.2.2 Intermediate Container Sample Collection
If the flow, water level and/or access point are deemed unsafe then an intermediate bottle attached to a grab pole will
be used for sample collection. A clean, new intermediate bottle will be used for each sampling event and sampling
site.
Ammonia and bacteriological sample bottles will be filled by intermediate container sample collection as follows:
1.
Attach the intermediate bottle to an expandable pole using tape or cable ties and remove lid.
2.
Submerge the intermediate bottle, attached to expandable pole, to approximately mid-depth at a location of
significant flow (avoid stagnant water).
3.
Remove bottle from water and empty contents. Repeat this twice more.
4.
Once the intermediate bottle is properly rinsed, return it to approximately mid-depth at a location of
significant flow (avoid stagnant water).
5.
Using the intermediate bottle, fill the bacteriological sample container and then the ammonia bottle. Ensure
that neither bottle overflows and that the preservative stays in the sample container.
6.
After bottle fills, replace bottle lid, remove bottle from pole, and place on ice.
B.4 SAMPLE HANDLING AND CUSTODY
The Field Crew will ensure that all samples are collected and submitted to their respective labs by the maximum
hold times listed in Table 4. If timing or logistics prevent a hold time being met, the Field Crew will contact the
Principal Engineer.
UCD-MC
SSO Monitoring Plan
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May 2014
Table 4. Constituent Hold Times and Analytical Methods
Constituent
Ammonia (NH 3 )
Analytical
1
Method
Maximum Hold
Times
Analytical Lab
SM 4500-NH3-G
28 days
SM 9221-B/E
6 hours
Associated
Laboratories
Total Coliform
B.4.1 Sample Bottle Labels
The PEI sampling crew will label all sample bottles with a waterproof label, which will contain the agency name
(UCDMC), sample collection date, analyte, analysis method, station number and name and sampling staff names.
The analytes and analysis methods are shown in Table 4 and the station identification protocols are shown in Table
5.
Table 5. Site Names for Sample Handling
Station Number
Station Name
US-001
Surface Water Upstream
ENTRY
Surface Water Point of Entry
DS-001
Surface Water Downstream 1
1
1
DS-XXX
Surface Water Downstream XXX
1 Additional downstream monitoring sites will be labeled in sequential order starting from the SSO surface water point of entry.
Example sample bottle label:
Direct Fill Sample Bottle Label
UCDMC
Station Number - ____
Analyte – Analysis Method ________________
Date & Time:________ Collected by:__________
B.4.2
Transport
All samples will be kept on ice from the time of collection to the time of receipt by laboratory personnel. It is
imperative that all samples be analyzed within maximum holding times (see Table 4). PEI staff will ship the
samples to ensure timely analysis. The laboratory information is shown below:
Associated Laboratories
806 N. Batavia
Orange, CA 92868
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B.4.3 Chain of Custody Form
Chain-of-Custody (CoC) forms will be filled out by the PEI technicians for all samples submitted to the laboratories.
CoCs will contain the following information:
•
Sampler name
•
Address (where the results will be sent)
•
To whom the laboratory results are being sent
•
Sample collection date and time
•
Sample location
•
Analysis method requested
•
Sample container type and number
•
Comments/special instructions
•
Samples relinquished by (signature, print name, date)
•
Samples received by (signature, print name, date)
Example lab specific CoCs are included in APPENDIX C.
C REPORTING
A Category 1 SSO in which 50,000 gallons or greater are spilled to a surface water requires multiple stages of
notification and reporting. UCDMC will adhere to the required timeline outlined in Table 6, which begins when
UCDMC becomes aware of an SSO. The specific requirements for notification and reporting are specified by Order
No. WQ-2013-0058-EXEC and detailed in the Sanitary Sewer Management Plan.
Table 6. Notification and Reporting Timeline
Time Period
Requirement
<2 Hours
Notification to CalOES
Within Three Business Days
Draft Category 1 SSO Report to CIWQS
Within 15 Calendar Days
Certified Category 1 SSO Report to CIWQS
Within 45 Calendar Days
SSO Technical Report with water quality results to
CIWQS
UCD-MC
SSO Monitoring Plan
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May 2014
APPENDIX E
ESTIMATING SPILL VOLUME
UCDMC Sanitary Sewer Management Plan
30
Estimating Spill Volume
Methods:
Page
1) Eyeball Estimate and Kick Bucket Method
2
Best for small spills 100 gallons or less, that can be visually approximated
2) Estimating Volume Based on Spill Dimensions
5
Larger spills that are no longer flowing and can be measured
3) Duration and Flow Rate
7
Good for large spills where dimensions cannot be measured, but the flow
rate can be calculated
4) Open Channel Spill Estimation
10
Good for large flowing spills where dimensions cannot be measured, but the
flow rate can be calculated
5) Drop Bucket Method
12
Best for small flowing spills where the entire flow can be captured in a bucket
6) Calculating Spill Volume Based on Pipe Size
14
Best for spills where pipe and flow information is known
7) Determine Spill Volume From Vent or Pick Holes
17
Best for spills originating from vent or pick holes in the ground/ manhole
8) Determine the Volume of a Spill from Around the Rim of a Manhole Cover
19
Best for spills originating from a manhole with a cover
9) Determine the Volume of a Spill from a Manhole without a Cover
21
Best for spills originating from a manhole without a cover
1
Method 1: Eyeball Estimate
(http://sdcounty.ca.gov/dpw/engineer//engineerpdf/SewerSystemMgtPlan_Jun2010.pdf)



Imagine amount of water that would spill from bucket or barrel
Bucket = 5 gal, barrel = 50 gal
This method is only useful for spills up to 100 gal

Kick Bucket Method
(http://www.slocity.org/utilities/download/cweapresentations2012/sept2012spillest
imating.pptx2.pdf)
o Can be used to estimate the volume of spills on asphalt, concrete, sloped
surfaces, and flat surfaces.
o One gallon spill on a sloped surface. (left: spill only, right: spill with a point
of reference)
o Two gallon vs. one gallon spill on a slope (two gallons left, one gallon
right).
2
o Two gallon spill on a very slight slope.
o Five gallon spill- forty feet in length.
3
Method 1: Eyeball Method and Kick the Bucket Volume Measurement Worksheet
Manhole/ Pipe Number:
Date:
Name of Estimator:
Telephone:
Exact Location of Spill (address): _______________________________________________
Exact Latitude:
Exact Longitude: _________________________
Picture taken?
YES
NO
Dimensions of spill (in ft. or paces): Length
Width
Shape of spill:
TRIANGLE
RECTANGLE
Estimated spill volume:
One gallon on sloped surface
Depth
CIRCLE
gal
Two gallon spill on sloped surface
Estimated volume of spill recovered:
Five gallon spill on sloped surface
gal
Please sketch spill with dimensions:
Was the measurement tested?
Was a reference image used?
YES
YES
NO
NO
Additional Notes and Documentation (please describe how the spill volume was
calculated/ measured.):
4
Method 2: Estimating Volume Based on Spill Dimensions
(http://sdcounty.ca.gov/dpw/engineer//engineerpdf/SewerSystemMgtPlan_Jun2010.pdf)

If not raining, the shape, dimensions, and depth of spill may be used to estimate
volume
1. Sketch shape of spill
2. Measure/pace off dimensions
3. Measure depth in several locations; take average
4. Convert all dimensions to feet
5. Calculate area of spill based on approximate shape:
 Rectangle: Area = length x width
 Circle: Area = diameter x diameter x 0.785
 Triangle: Area = base x height x 0.5
6. Multiply area x depth to get volume
7. Multiply volume x 7.5 to convert into gallons

Using a spill footprint to get surface area and sample sketch

Calculate average depth to get a depth measurement
5
Method 2: Spill Volume Estimation Worksheet Based on Spill Dimensions
Manhole/ Pipe Number:
Date:
Name of Estimator:
Telephone:
Exact Location of Spill (address): _______________________________________________
Exact Latitude:
Exact Longitude: _________________________
Picture taken?
Shape of spill:
YES
NO
RECTANGLE
TRIANGLE
CIRCLE
Please sketch spill in zones with dimensions:
Area # 1_____________________________________________________ % Wet__________
Area # 2_____________________________________________________ % Wet__________
Area # 3_____________________________________________________ % Wet__________
Area # 4_____________________________________________________ % Wet__________
Area # 5_____________________________________________________ % Wet__________
Area # 6_____________________________________________________ % Wet__________
Please Calculate Average Depth:
Estimated Spill Surface Area ______________________square feet
Number of Depth Measurements Used ______________ Average Depth _________inches
Estimated Spill Volume: __________________________gal
Estimated volume of spill recovered:
gal
Additional Notes and Documentation (please describe how the spill volume was
calculated/ measured. Please show calculations.):
6
Method 3: Duration and Flow Rate
(http://sdcounty.ca.gov/dpw/engineer//engineerpdf/SewerSystemMgtPlan_Jun2010.pdf)
(http://www.ocsd.com/Home/ShowDocument?id=12868)

If area/ depth is impossible to measure, use duration and flow rate estimate
Duration: time elapsed from start to end of SSO

To estimate start time, use one of the following methods:
1. Compare hourly data on a downstream flow meter to find changes in flow.
Typically the daily flow peaks are flattened by the loss of flow.
2. Observe conditions at the SSO site. Initially there will be limited deposits
of grease and toilet paper. After a few days to a week, the grease forms a
light colored residue. After a few weeks to a month the grease turns dark.
In both cases the quantity of toilet paper and other materials of sewage
origin increase in amount. These changes with time can be used to
estimate the start time in the absence of other information.

To estimate end time, observe the “blow down” that occurs when blockage is
removed or observe “blow down” on flow meters.
Flow Rate: average flow left in sewer system during time SSO stopped, estimated
using one of the following three ways:
1. Use data from flow meter to estimate flow rate for the spill (better for
large SSOs).
2. Estimate based on up-stream connections. Once the location of the SSO
is known, the number of upstream connections can be determined from
system maps. Multiply the number of connections by 200 to 250 gallons
per day per connection, or 8 to 10 gallons per hour per connection, or
other flow rates that are consistent with the City’s data for its connections.
 Example: 22 upstream connections x 9 gallons per hour per
connection = 198 gallons per hour / 60 minutes per hour = 3.3
gallons per minute. Multiply the gallons per minute times the
number of minutes the spill occurred for the total volume of the spill.
3. Refer to the Reference Sheet for Estimating Sewer Spills to estimate
flow rate based on images obtained from tests below.
Volume of SSO is the product of the duration (in hours or days) x flow rate (in gallons
per hour or gallons per day). (ft3= 7.48 gal)
7
8
Method 3: Spill Volume Estimation Based on Duration and Flow Rate
Manhole/ Pipe Number:
Date:
_____________
Name of Estimator:
Telephone:
Exact Location of Spill (address): _______________________________________________
Exact Latitude:
Exact Longitude: _________________________
Estimated spill start date/time:
_____________ (MM/DD/YY) ________ (HR:MIN)
Estimated spill end date/time:
_____________ (MM/DD/YY) ________ (HR:MIN)
Spill duration:
min
Flow rate:
gal/min
How was flow rate determined?
Flow Meter
Upstream Connections
Estimated spill volume (duration x flow rate):
Estimated volume of spill recovered:
Picture taken?
YES
Reference Sheet
gal
gal
NO
Dimensions of spill (in ft. or paces): Length
Width
Shape of spill:
TRIANGLE
RECTANGLE
Depth
CIRCLE
Please Sketch Spill with Dimensions:
Additional Notes and Documentation (please describe how the spill volume was
calculated/ measured. Please show calculations.):
9
Method 4: Open Channel Spill Estimation
(http://www.ocsd.com/Home/ShowDocument?id=12868)

For ditches, channels, gutters, etc.
1. Measure the cross sectional dimensions (to determine the area) of the
channel and determine the velocity of the flow.
2. Velocity can be measured by dropping a floating object into the flow and
timing the object over a measured distance.
3. Flow (Q), ft3/sec = Velocity (V), ft/sec X Area (A),ft2
4. Flow times duration equals amount of spill
5. Multiply by 7.48 (number of gallons in one cubic foot) to convert to gallons
10
Method 4: Spill Volume Estimation Based on Open Channel Spills
Manhole/ Pipe Number:
Date:
_____________
Name of Estimator:
Telephone:
Exact Location of Spill (address): _______________________________________________
Exact Latitude:
Exact Longitude:
_____
Estimated spill start date/time:
_____________ (MM/DD/YY) ________ (HR:MIN)
Estimated spill end date/time:
_____________ (MM/DD/YY) ________ (HR:MIN)
Spill duration:
min
Velocity:
Cross Sectional Area of Ditch, Channel, or Gutter:
Depth:
ft.
Width:
ft.
Flow rate (velocity x Area):
Area:
ft./min
ft2
ft3/min
Estimated spill volume (duration x flow rate x 7.48):
gal
Estimated volume of spill recovered:
gal
Picture taken?
YES
NO
Dimensions of spill (in ft. or paces): Length
Width
Shape of spill:
TRIANGLE
RECTANGLE
Depth
CIRCLE
Please Sketch Spill with Dimensions:
Additional Notes and Documentation (please describe how the spill volume was
calculated/ measured. Please show calculations.):
11
Method 5: Drop Bucket Method
(http://www.ocsd.com/Home/ShowDocument?id=12868)

Can be used for small spills where the entire flow stream can be captured in a
bucket.
1. Place bucket so that it captures the entire flow stream and time how long it
takes to fill the bucket.
2. Dividing the volume of the bucket (in gallons) by the elapsed time to fill the
bucket (in minutes) equals the flow rate in gallons per minute (gpm).
 Example: If it takes 30 seconds to fill a 5-gallon bucket and the spill
has occurred for 20 minutes the total spill volume would be 200
gallons (5gal/.5min = 10gpm X20min = 200gal).
12
Method 5: Spill Volume Estimation Based on Drop Bucket Method
Manhole/ Pipe Number:
Date:
_____________
Name of Estimator:
Telephone:
Exact Location of Spill (address): _______________________________________________
Exact Latitude:
Exact Longitude: _________________________
Volume of bucket used to determine volume:
gal
Time needed for flow to fill bucket:
min
Flow rate:
gal/min
Spill duration:
min
Estimated spill volume (duration x flow rate):
Estimated volume of spill recovered:
Picture taken?
YES
gal
gal
NO
Dimensions of spill (in ft. or paces): Length
Width
Shape of spill:
TRIANGLE
RECTANGLE
Depth
CIRCLE
Please Sketch Spill with Dimensions:
Additional Notes and Documentation (please describe how the spill volume was
calculated/ measured. Please show calculations.):
13
Method 6: Calculating Spill Volume Based on Pipe Size
(http://www.ocsd.com/Home/ShowDocument?id=12868)

Volume of a spill can be measured using the flow rate in a pipe before and after
the blockage is clear.
1. Need to know the size of the pipe
2. Need a flow calculation chart
3. Measure the depth of the flow down- stream of the blockage
4. Measure the depth of flow again after the blockage has been cleared and
flow stabilized
5. Use flow calculation chart to determine the flow rate of the pipe

Example: A Spill was reported at 3:50 pm and was corrected at
6:25 pm on the same day. Calculate the volume of the spill for a 10
inch pipeline with 1 inch of downstream flow before correction and
5 inches of flow after correction and stabilization of flow.
Time reported – 3:50 pm
Time Corrected – 6:25 pm
14
Duration of spill – 2:35 or 155 minutes
Depth of flow before – 1 inch
Depth of flow after – 5 inches
From Chart:
Flow after stabilization = 240 gpm
Flow downstream before = 25 gpm
Net Flow = 240 -25 = 215 gpm
SPILL VOLUME = 215 (gpm) X 155 (m) = 33,325 gallons
15
Method 6: Spill Volume Estimation Based on Pipe Size
Manhole/ Pipe Number: ___________________
Date:
Name of Estimator:
Telephone:
Exact Location of Spill (address): _______________________________________________
Exact Latitude:
Exact Longitude: _________________________
Estimated spill start date/time: _____________ (MM/DD/YY) _________ (HR:MIN)
Estimated spill end date/time: _____________ (MM/DD/YY) _________ (HR:MIN)
Spill duration:
min
Pipe size:
inches
Depth of flow before correction:
Depth of flow after correction:
inches
inches
Flow before stabilization (from chart):
Flow after stabilization (from chart):
Net flow (after- before stabilization):
gpm
gpm
gpm
Estimated spill volume (duration x net flow):
gal
Estimated volume of spill recovered:
gal
Picture taken?
YES
NO
Dimensions of spill (in ft. or paces): Length
Shape of spill:
RECTANGLE
Width
TRIANGLE
Depth
CIRCLE
Additional Notes and Documentation (please describe how the spill volume was calculated/
measured. Please show calculations.):
16
Method 7: Determine Spill Volume from Vent or Pick Holes
(http://www.ocsd.com/Home/ShowDocument?id=12868)

If spill is coming from vent or pick holes:
1. Count the number of holes
2. Measure the height of the water exiting from the holes
3. Refer to pick hole chart to determine the volume from each hole (below)
4. Multiply the number of holes times the flow rate times the duration of the
spill to determine spill volume
17
Method 7: Spill Volume Estimation Based on Spill from Vent or Pick Holes
Manhole/ Pipe Number:
Date:
_____________
Name of Estimator:
Telephone:
Exact Location of Spill (address): _______________________________________________
Exact Latitude:
Exact Longitude: _________________________
Estimated spill start date/time:
_____________ (MM/DD/YY) ________ (HR:MIN)
Estimated spill end date/time:
_____________ (MM/DD/YY) ________ (HR:MIN)
Spill duration:
min
Number of Pick of Vent Holes:
Size of Pick or Vent Holes (diameter):
inches
Height of water exiting pick or vent holes:
inches
Flow rate from each hole (chart):
gal/min
Estimated spill volume (duration x flow rate x number of holes):
Estimated volume of spill recovered:
gal
Picture taken?
YES
NO
Dimensions of spill (in ft. or paces): Length
Width
Shape of spill:
TRIANGLE
RECTANGLE
gal
Depth
CIRCLE
Please Sketch Spill with Dimensions:
Additional Notes and Documentation (please describe how the spill volume was
calculated/ measured. Please show calculations.):
18
Method 8: Determine the Volume of a Spill from Around the Rim of a Manhole
Cover (http://www.ocsd.com/Home/ShowDocument?id=12868)

If manhole cover is in place:
1. Find the area of the gap (diameter of the cover from the diameter of the
inside of the ring)
2. Find the velocity (ft/sec) of the spill by measuring the height of the sewage
plume
3. Area times the velocity (ft/sec) times the duration of the spill times (448.8
for gpm/cfs) equals the total spill volume in gallons
19
Method 8: Spill Volume Estimation Based on Spill Around the Rim of a Manhole
Cover that is in Place
Manhole/ Pipe Number:
Date:
_____________
Name of Estimator:
Telephone:
Exact Location of Spill (address): _______________________________________________
Exact Latitude:
Exact Longitude:
_____
Estimated spill start date/time:
_____________ (MM/DD/YY) ________ (HR:MIN)
Estimated spill end date/time:
_____________ (MM/DD/YY) ________ (HR:MIN)
Spill duration:
min
Area of gap (diameter of the cover from the diameter of the inside ring):
Height of sewage plume:
inches
Velocity (chart):
ft./sec
ft2
Estimated spill volume (duration min x velocity ft./sec x area ft2 x 448.8 gpm/cfs):
gal
Estimated volume of spill recovered:
Picture taken?
YES
Was reference photo used?
YES
Dimensions of spill (in ft. or paces): Length
Shape of spill:
RECTANGLE
gal
NO
NO
Width
TRIANGLE
Depth
CIRCLE
Please Sketch Spill with Dimensions:
Additional Notes and Documentation (please describe how the spill volume was
calculated/ measured. Please show calculations.):
20
Method 9: Determine the Volume of a Spill from a Manhole without a Cover
(http://www.ocsd.com/Home/ShowDocument?id=12868)

If manhole cover is not in place:
1. Find the area of the manhole opening (Area = 3.14 R2)
2. Find the velocity (ft/sec) of the spill by measuring the height of the sewage
plume
3. Area times the velocity (ft/sec) times the duration of the spill times (448.8
gpm/cfs) equals the total spill volume in gallons.
21
Method 9: Spill Volume Estimation Based on Spill from a Manhole without a
Cover
Manhole/ Pipe Number:
Date:
_____________
Name of Estimator:
Telephone:
Exact Location of Spill (address): _______________________________________________
Exact Latitude:
Exact Longitude:
_____
Estimated spill start date/time:
_____________ (MM/DD/YY) ________ (HR:MIN)
Estimated spill end date/time:
_____________ (MM/DD/YY) ________ (HR:MIN)
Spill duration:
min
Area of manhole opening (A=3.14 r^2):
ft2
Height of sewage plume:
inches
Velocity (chart):
ft./sec
Estimated spill volume (duration min x velocity ft./sec x area ft2 x 448.8 gpm/cfs):
gal
Estimated volume of spill recovered:
Picture taken?
YES
Was reference photo used?
YES
Dimensions of spill (in ft. or paces): Length
Shape of spill:
RECTANGLE
gal
NO
NO
Width
TRIANGLE
Depth
CIRCLE
Please Sketch Spill with Dimensions:
Additional Notes and Documentation (please describe how the spill volume was
calculated/ measured. Please show calculations.):
22
ATTACHMENT A
Field Forms
SSO Water Quality Monitoring Plan Field Log
General Information
Event ID:
Date:
SSO Time:
Sampling Personnel:
SSO Description
Time of Notification:
Size:
Location:
Weather (fog, rain, wind, etc):
Total precipitation during previous 5 days:
Monitoring Sites
US-001
Arrival Time:
GPS Coordinates
Sample Location
Sample Time:
Departure Time:
Latitude:
Longitude:
Mid-Channel
Bank
Total Coliform:
Ammonia:
Floating Material or Debris:
Water Color/Turbidity:
Odor:
POINT of ENTRY
Arrival Time:
GPS Coordinates
Sample Location
Sample Time:
Departure Time:
Latitude:
Longitude:
Mid-Channel
Bank
Total Coliform:
Ammonia:
Floating Material or Debris:
Water Color/Turbidity/Odor:
Estimated Spill Travel Time to Monitoring Site:
DS-001
Arrival Time:
GPS Coordinates
Sample Location
Sample Time:
Departure Time:
Latitude:
Longitude:
Mid-Channel
Total Coliform:
Floating Material or Debris:
Water Color/Turbidity/Odor:
Estimated Spill Travel Time to Monitoring Site:
Page __ of ___
Bank
Ammonia:
SSO Monitoring Plan Field Log (Additional Downstream Sites)
DS-____
Arrival Time:
GPS Coordinates
Sample Location
Sample Time:
Departure Time:
Latitude:
Longitude:
Mid-Channel
Bank
Total Coliform:
Ammonia:
Floating Material or Debris:
Water Color/Turbidity/Odor:
Estimated Spill Travel Time to Monitoring Site:
DS-____
Arrival Time:
GPS Coordinates
Sample Location
Sample Time:
Departure Time:
Latitude:
Longitude:
Mid-Channel
Bank
Total Coliform:
Ammonia:
Floating Material or Debris:
Water Color/Turbidity/Odor:
Estimated Spill Travel Time to Monitoring Site:
DS-____
Arrival Time:
GPS Coordinates
Sample Location
Sample Time:
Departure Time:
Latitude:
Longitude:
Mid-Channel
Bank
Total Coliform:
Ammonia:
Floating Material or Debris:
Water Color/Turbidity/Odor:
Estimated Spill Travel Time to Monitoring Site:
DS-____
Arrival Time:
GPS Coordinates
Sample Location
Sample Time:
Departure Time:
Latitude:
Longitude:
Mid-Channel
Total Coliform:
Floating Material or Debris:
Water Color/Turbidity/Odor:
Estimated Spill Travel Time to Monitoring Site:
Page __ of ___
Bank
Ammonia:
ATTACHMENT B
Chain of Custody Form
ATTACHMENT C
Reporting
REPORTING
A Category 1 SSO in which 50,000 gallons or greater are spilled to a surface
water requires multiple stages of notification and reporting. UCDMC will
adhere to the required timeline outlined in Table 6, which begins when
UCDMC becomes aware of an SSO. The specific requirements for
notification and reporting are specified by Order No. WQ-2013-0058-EXEC
and detailed in the Sanitary Sewer Management Plan.
Table 6. Notification and Reporting Timeline