Sewer System Management Plan - Revision 02
lntroduction
c. ln-house and external training provided on a regular basis for sanitary sewer system operations and maintenance staff and contractors. The training covers:
i. The requirements of this General Order;
ii- The City's Spill Emergency Response Plan procedures and practice d rills;
iii. Skilled estimation of spill volume for field operators; and iv. Electronic CIWQS reporting procedures for staff submitting data. d. An inventory of sewer system equipment, including the identification of critical replacemenl and spare parts.
Design and Performance Provisions
The Design and Performance Provisions Element describes the standards and specifications for new construction, repair of the existing sanitary sewer system, and the inspection and testing of these items.
Spill Emergency Response Plan
The Spill Emergency Response Plan (SERP) contains the following information in order to protect public health and the environment in the event of a sewer spill:
a. Notify primary responders, appropriate local officials, and appropriate regulatory agencies of a spill in a timely manner;
b. 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;
c. Comply with the notification, monitoring and reporting requirements of this General Order, State law and regulations, and applicable Regional Water Board Orders;
d. Ensure that appropriate staff and contractors implement the Spill Emergency Response Plan and are appropriately trained;
e. Address emergency system operations, traffic control and other necessary response activities;
f. Contain a spill and prevenuminimize discharge to waters of the State or any drainage conveyance system;
g. Minimize and remediate public health impacts and adverse impacts on beneficial uses of waters of the State;
h. Remove sewage from the drainage conveyance system;
i. Clean the spill area and drainage conveyance system in a manner that does not inadvertently impact beneficial uses in the receiving waters; j. lmplement technologies, practices, equipment, and interagency coordination to expedite spill containment and recovery;
k. lmplement pre-planned coordination and collaboration with storm drain agencies and other utility agencies/departments prior, during, and after a spill event:
l. Conduct post-spill assessments of spill response activities; City ol Tehachapi
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m. Document and report spill events as required in this General Order; and n. Annually, review and assess effectiveness of the Spill Emergency Response Plan, and update the Plan as needed.
Pipe Blockage Control Program
The goal of the Pipe Blockage Control Program is to reduce and/or eliminate the amount of pipe blocking materials such as fats oils and grease (FOG), wipes, roots, etc., that may be discharged to the sanitary sewer system. This is implemented through public outreach, operations and maintenance activities, investigations and FOG Program inspections.
System Evaluation, Capacity Assurance, and Capital lmprovement Plan The City completed a Hydraulic Model Report in 2019 to assess the existing, near term and long-term capacity needs to safely collect and convey wastewater. The Report identified capital improvement proJects which are required to provide capacity for future development. There were no other capacity deficiencies identified for existing conditions in the City service area.
Monitoring, Measurement, and Program Modifications
The City monitors the implementation of the SSMP Elements in order to measure the effectiveness of the City SSMP program in reducing sewer spills. This SSMP Element outlines the manner in which each SSMP Element is monitored and evaluated and the schedule with which the City completes this monitoring and evaluation.
Sewer System Management Plan Program Audits
The SSMP Program Audits Element outlines the audit process and identifies City Staff responsible for conducting or participating in SSMP Program Audits and generating the required SSMP Program Audit Report. SSMP Program Audits must occur at a minimum of every three (3) years and are required to evaluate the City SSMP Program, identify program deficiencies, and provide an improvement schedule based on the audit findings Communication Program
This SSMP Element describes the manner in which the City communicates the development, implementation, and performance of its SSMP with the public in order to provide them with the opportunity to provide input as the SSMP program is developed and implemented. Additionally, the Communication Program provides notification procedures for sewer spills and discharges resulting in closures of public areas, or that enter a source of drinking water.
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Sewer System Management Plan - Revision 02
Element I - Goal
The City of Tehachapi (City) has the following goals for the management and maintenance of the sanitary sewer collection system. These goals provide focus for City Staff to continue highquality work to operate and maintain City facilities and to implement improvements for management of the collection system to prevent sanitary sewer spills (Spills). The role of the SSMP in supporting these goals is discussed below.
These goals will be evaluated annually in Element 9: Monitoring, Measurement and Program Modiflcation to assess the City's success in implementlng and meeting the ob.jectives of these goals.
1.1 RegulatoryRequirement
WDR Order No. 2022-0103-DWQ Attachment D1 states
The goal of the Sewer System Management Plan (Plan) is to provide a plan and schedule to: (1) properly manage, operate, and maintain all parts ofthe Enrollee's sanitary sewer system(s), (2) reduce and prevent spills, and (3) contain and mitigate spills that do occur.
1.2 Sanitary Sewer System Goals
The City seeks to provide high quality and reliable wastewater collection and conveyance for its residents and businesses.
City SSMP Goals:
. Properly manage, operate, and maintain all portions of the City wastewater collection and conveyance system.
. Provide adequate capacity to carry peak flows.
o Provide protection to public health by minimizing the frequency and volume of sewer spills.
. Mitigate the impacts of sewer spills that may occur.
. Comply with all regulatory notification and reporting requirements. . Promote public education and awareness on proper sewer practices.
1.3 Regulatory Context and Schedule for Audits and Updates As required by Statewide Sanitary Sewer Systems General Order 2022-0103-DWQ, the SSMP contains several elements which are referenced in the table of contents that will help the City accomplish the goals mentioned in this element. The City is dedicated to implementing each Element ofthe SSMP and tracking any revisions that may be necessary as program implementation progresses. The current 2025 SSMP update was completed prior to the due dale of May 2, 2026.
The City will begin their next SSMP Audit aller May 2, 2028, Audil Period End Date with an identifled Audit period of May 2, 2025, through May 2,2028, for completion by November 2, City of Tehachapi
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ELEMENT 1 - GOALS, REGULATORY CONTEXT, ASSET OVERVIEWAND
SCHEDULE
2028. The Audit will evaluate how the SSMP meets regulatory requirements, implementation of the SSMP, success of preventative maintenance program, and sewer spill trends. A plan and schedule will be developed for the correction of any deficiencies identified in the audit and any necessary updates or general plan changes that may be required.
The City will annually review and evaluate the SSMP, Preventative Maintenance Program, and Spill Trends to identify areas of their sewer operations that may need to be modified to comply with existing regulatory requirements and reduce the number of sewer spills occurring in a calendar year.
The SSMP 6-Year Update will begin on or before January 2, 2032'fot complelion, adoption and recertification by May 2, 2032.
ln addition to the SSMP Update and SSMP Audit discussed above, the City has identified additional near-lerm compliance dates as required by General Order WQ-2022-0103-DWQ:
. Annual Report of Category 4 Non-Lateral Spills: February 1"t of each calendar year . Annual Report: Aprll 1"t of each calendar year
1.4 System Asset Overview and Service Area
The City of Tehachapi is a public agency providing services to residential, industrial, and commercial establishments and visitors. The City maintains the sewer collection and conveyance system. This system is connected to a trunk sewer system and Wastewater Treatment Plant owned and operated by the City.
The City sewer collection and conveyance system is located in Kern County with a seven (7) square mile service area and consists of 45 miles of gravity pipelines, which vary in diameter from 6-inch to 3o-inches, one (1) City-owned lift station, and 1,480 feet of force main.
Approximately 90% of the City's collection system was constructed before 1980. The remaining 1 0% of the system was construcled from 1980 to present. Most of the existing collection system piping material is Polyvinyl Chloride Pipe (PVC).
There are 760 maintenance holes throughout the system. The sewer system is restricted to providing sanitary sewer flows only with no diversion of stormwater into the sewer system.
The following table shows the various gravity pipeline sizes:
6', 2.7 6%
8', JU,U 690/o
10" J.J
12" 4.0 9%
,t EI
18" 0.6
21" 0.7
24 0.4 1o/o
JU 0.1 0.2%
TOTAL 45 100%
Pipe Diameter (lnches) Length (Miles) Percent of Sewer
System
Table 4-1: Sewer Pipe Sizes
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Element 1 - Goal
7%
5%
2%
Year 2000 to Present 2%
8%
1960 to 1979 90%
1940 to 1959
1900 to 1939 0%
Sewer Line Age
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Element 1 - Goal
The predominant pipe material is Polyvinyl Chloride (PVC) pipe (91%). T able 4-2 illustrates the current age of sewer lines in the system.
Table 4-2i Sewer Pipeline Age
The City serves a population of approximately 1 1,1 14 peoplel. The City system includes approximately 3,000 sewer laterals. Sewer system customers are broken down as follows:
Table 4-3: Sewer Connection Types
A eneral overview showin the service area boundaries is rovided below Figure 4-1 : Sewer System Overview
1 US Census Population Dala,2024
Residential 91o/o
Commercial 8%
lndustrial 1%
Total 100%
Type of Connection % of Total Connections
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1980 to 1 999
0%
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Element 1 - Goal
Data management for the operations and maintenance of the sewer systems is provided utilizing the City lWorQ computer based maintenance program.
Sewer laterals are owned, operated and maintained by individual property owners from the wye connection at the sewer main, back to each building. The City does not own or maintain any sewer laterals within the service area other than laterals on City owned property.
The City utilizes the following Performance lndicators for measuring effectiveness of this Element:
. Are SSMP Audits and SSMP Updates being performed as scheduled? o Has the SSMP been approved by the governing board on the required schedule (every six years)?
. Are specific internally established sewer program milestones being monitored? . Are asset statistics periodically reviewed and updated as necessary? . Are system sewer and sto{rn drain maps up to date?
System Resilience is addressed in Element 1 by:
. Redundancy: More than one member of staff is trained and able to retrieve and manage SSMP data.
o lmplementing a QNQC process to help ensure information is accurate. . Continuous improvement with input from the field (ex: map updates). . Uslng Outlook calendar reminders to ensure compliance deadlines are met.
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Element 2 - Organization
ELEMENT 2 . ORGANIZATION
The Organization Element of the SSMP identifies City of Tehachapi (City) slaff that are responsible for the management and implementation of this SSMP. This Element identifies staffs responsibilities responding to sewer spill events, and meeting sewer spill reporting requirements. The Legally Responsible Officials (LRO) are designated below to meet SWRCB requirements for completing and certifying sewer spill reports in the California lntegrated Water Quality System (CIWQS).
This SSMP Element outlines the City organization, SSMP responsibilities of personnel, authorized representatives, and chains of communication for sewer spill response and reporting
2.1 Regulatory Requirements
WDR Order No. 2022-0103-DWQ Attachment D 2 states
The collection system agency's SSMP must identify:
a) The name of the Legally Responsible Official defined in this Order; b) The position titles, telephone numbers, and email addresses for management, administrative, and maintenance positions responsible for implementing specific Sewer System Management Plan elements:
c) Organizational lines of authority; and
d) Chain of communication for reporting spills from receipt of complaint or other information, including the person responsible for reporting spills to the State and Regional Water Boards and other agencies, as applicable. (For example, county health officer, county environmental health agency, and State Office of Emergency Servrces.) WDR Order No. 2022-0103-DWQ Section 5.1 states:
The Enrollee shall designate a Legally Responsible Official that has authority to ensure the enrolled sanitary sewer system(s) complies with this Order and is authorized to serve as a duly authorized representative. The Legally Responsible Official must have responsibility over management of the Enrollee's entire sanitary sewer system and must be authorized to make managerial decisions that govern the operation of the sanitary sewer system, including having the explicit or implicit duty of making major capital improvement recommendations to ensure long{erm environmental compliance. The Legally Responsible Official must have or have direct authority over individuals that:
Possess a recognized degree or certificate related to operations and maintenance of sanitary sewer systems, and/or
Have professional training and experience related to the management of sanitary sewer systems, demonstrated through extensive knowledge, training and experience.
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Element 2 - Organization
2.2 ResponsibleandAuthorized Representatives
The name of the authorized representatives described in WDR Section 5.1 above is listed in Table 2-1 :
Table 2-1: City of Tehachapi Authorized Representatives Tyler Napier Public Works Director Legally Responsible Official Bryan Heffernan Chief Plant Operator Legally Responsible Official City of Tehachapi
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2.3 SSMP Program lmplementation
An organization table showing the lines of authority for the City is described below in Table 2-2 and updated City Organization Charts which show lines of authority can be found in Appendix 2A,.
Name Title CIWQS Database
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Element 2 - Organization
Table 2-2: City of Tehachapi Staff and Contract Staff with SSMP Responsibilities and Contact lnformation
City Council Members can be
contacted by calling City Hall
and leaving a message at: (661 )
822-2200.
City Council
Joan Pogon-Cord
Mayor
Jeanette Pauer
Mayor Pro Tem
Phil Smith
Councilmember
Marianna Gutierrez
Councilmember
Hannah Chung
Councilmember
The City Council annually adopts a
budget in which funding would be
allocated for SSMP related tasks.
The City Council is also responsible
for considering and approving
updates to the City's SSMP.
The City Manager directs City Staff
who manage all eleven (1 1) SSMP
Elements.
Office: (661 ) 822-2200 ext: 105
[email protected]
Greg Garrett
City l,tlanager
Office: (805) 250-7550
rwglaw.com
Richards Watson
Gershon
City Attorney
The City Attorney assists in the
management of Element 3, Legal
Authority.
Office: (661 ) 822-2200 ext: 507
[email protected]
Office: (661) 822-2200 exli 508
[email protected]
The Public Works Director and Chief
Plant Operator are responsible for the
overall management of the SSMP and
specifi cally directs the implementation
of:
. Element '1
- Goal;
o Element 2 - Organization;
. Element 3 - Legal Authority;
. Element 4 - Operation and
Maintenance Program;
o Element 5 - Design and
Performance Provisions;
Tyler Napier
Public Works
Director
Bryan Heffernan
Chief Plant Operator
SSMP Responsibilities Contact lnformation
I
iName and Title
City of Tehachapi
Aptil2026
Element 6 - Spill Emergency
Response Plan;
Element 7 - Pipe Blockage
Control Program;
Element 8 - System
Evaluation, Capacity
Assurance and Capital
lmprovement Plan;
Element 9 - Monitoring,
lVleasurement, and Program
Modifications;
Element 10 - SSMP Audits;
and
Element 11 - Communication
Program
The Chief Plant Operator is assisted
by Sewer System Operators to
manage and implement these
Elements.
(661) 822-2200 ext: 506
l\,4aintenance Staff
Cody Urso
Michael Castro
Patrick Hoofard
Alfredo Cornejo
Name and Title Contact lnformation
2.4 Chain of Communication for Responding to Sewer Spills The chain of communication for reporting sewer spills begins with contact to the City of Tehachapi office by either residents or the Police Department. The Police Department or Public Works Staff then notifies Operations Staff of the spill. The City requires a response time of 15 minutes or less during business hours, a response time of one hour or less is expected after business hours and weekends. The Chief Plant Operator is responsible for reporting sewer spills in CIWQS.
The City of Tehachapi contact number is answered
Monday - Friday from 7:00 am - 5 pm
(6611822-2200
All after hour's emergencies are reported to:
City Dispatch
(6611822-2200
The City of Tehachapi's procedure is to report all Category 1, 2,3, & 4 spills as required by the Statewide General Order.
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Element 2 - Organization
SSMP Responsibilities
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Element 2 - Organization
1. The receiver of the call (City Staff or after-hours Police Department) will obtain the location from the caller and any description they may have of the problem. Staff will fill in a Sewer lncident Report Form (Spl// Response Checklist) and obtain caller name and phone number for follow-up information if necessary.
2. The call receiver will contact the Chief Plant Operator (CPO) by phone immediately who will direct Maintenance Staff to the described location. The CPO will initiate the sewer overflow response report and provide it to the responding Staff.
3. Maintenance Staff will proceed to the location to verify report.
4. lf warranted the CPO or their designee may request further support. lf Maintenance Staff member is dispatched he/she will keep Administrative Staff informed of progress as necessary.
5. The CPO or his delegate will notify Public Works Director.
6. The CPO will notify all appropriate public agencies as described in Element 6 Spill Emergency Response Plan.
Upon completion of containment and clean-up, CPO will use the Spill Reporting Form to complete the final spill reports to the CIWQS database, RWOCB, , and the Kern County Environmental Health Department as needed. The following flowchart shows the spill response chain of command.
Conlacls
additional
resources
necessary
Emergency Phone #
91 1 or (661) 822-
2200
On Call Staff is
contacted
Observer
Wastewater Staff
Responds
Wastewater Staff
Mitigates Spill Notifies City Office
(6611822-2200
After Hours
Observer directed
to Call 911
Spill Notification & Reporting lo
Appropriate Agencies
necessary
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ln the event of a report of a possible wastewater spill, or when Staff is contacted concerning odors, standing water or an overflowing manhole, the following steps are laken to verify the report and ensure the safety of the public.
Chief Plant Operator
(cPo)
(7 14) 231 -s949
Compile CIWOS
Data:
On Call Statf and
CPO
Sewer System Management Plan - Revision 02
Element 2 - Organization
Figure 2-1: Sewer Spill Response Chain of Command
SSMP Element 6 - Spill Emergency Response Plan contains a chain of communication for reporting Spills for use in the field by the Operations Staff in Figure 6-1 which is the same as Figure 2-1 above.
Upon completion of containment and clean-up, the CPO initiates the Draft Sewer Spill Report in CIWOS.
The City utilizes the following Performance lndicators for measuring effectiveness of this Element:
. Have there been any changes requiring updates to the Organizational Chart? . Have there been any changes in assigned responsibilities for implementing the SSMP? . ls there a process in place to ensure all contact information remains up to date? City of Tehachapi
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Sewer Spill notiflcation is outlined in the City's - Spill Emergency Response Plan. The contact information and notrfication requirements associated with notifying Cal OES and other applicable agencies, such as Kern County Environmental Health Division, are included in that SSMP Element.
Resilience is addressed in Element 2 by:
. Ensuring that more than one person is capable and responsible for specific duties for Sewer System Management Plan implementation, e.9., back-up personnel. . Designation of more than one LRO to help ensure full and continuous coverage of duties.
. Testing the phone notification system to ensure calls are received and routed to appropriate personnel.
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Element 2 - Organization
APPENDIX 2
2A Organization Chart
City ol Tehachapi
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CALIFO
Ltve Up
A
JOAN
POGAN.CORD
JEANETTE
PAUER
PHIL
SMITH
MARIANNA
GUTIERREZ
HANNAH
CHUNG
GREG
GARRETT
TYLER
NAPIER (LRO)
B RYAN
HEFFERNAN (LRO)
M ICHA EL
CA STRO
PATRICX
HOOFARD
C!TY COUNCIL
CITY MANAGER
PUBLIC WORKS DIRECTOR
CHIEF PLANT OPERATOR
MAINTENANCE STAFF
TE HAC HAP I
CITY OF TEHACHAPI
ORGANIZATION CHART
CODY
u R50
ALFREDO
CORNE]O
Sewer System Management Plan - Revision 02
Element 3 - Legal Authority
ELEMENT 3 - LEGAL AUTHORITY
The City of Tehachapi (City) maintains the legal authority for the sanitary sewer system in the City Municipal Code sections listed below. These Codes are on file at the City Office and can also be located on the City Website:
httos://librarv.municode.com/ca./teh achapi/codes/code of ordinances
3.'l RegulatoryRequirements
WDR Order No. 2022-0103-DWQ Attachment D 3 states:
The waslewater collection system agency must include copies or an electronic link to the Enrollee's current sewer system use ordinances, service agreements and/or other legally binding procedures to demonstrate the Enrollee possesses the necessary legal authority to (a). Prevent illicit discharges into its sanitary sewer system from inflow and infiltration (l&l); unauthorized stormwater; chemical dumping; unauthorized debris; roots; fats, oils, and grease; and trash, including rags and other debris that may cause blockages;
(b). Collaborate with storm sewer agencies to coordinate emergency spill responses, ensure access to storm sewer systems during spill events, and prevent unintentional cross connections of sanitary sewer infrastructure lo storm sewer infrastructure; (c). Require that sewer system components and connections be properly designed and constructed:
(d). Ensure access for maintenance, inspection, and/or repairs for portions of the service lateral owned and/or operated by the Enrollee;
(e). Enforce any violation of its sewer ordinances, service agreements, or other legally binding procedures; and
(f). Obtain easement accessibility agreements for locations requiring sewer system operations and maintenance, as applicable.
3.2 SSMP Sanitary Sewer System Legal Authority IWDR D 3 (a) - (0I Table 3-1 below provides the mechanisms by which the City maintains the legal authonties required by the WDRS for public and private sewer systems. Theses Codes and Ordinances can be found in the link identified above.
Table 3-1: City Legal Authority References
D 3 (a) Prevent illicit
discharges into its sanitary
sewer system (examples
may include lnflow &
lnfiltration (Ul), storm water,
chemical dumpinq,
Chapter 8.36 - lndustrial Wastes
. Section 8.36.030 General Discharge Prohibitions
. Section 8.36.060 Specific Limitations of Wastes lnto
Wastewater Sewers
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Sewer System Management Plan - Revision 02
Element 3 - Legal Authority
unauthorized debris and cut
roots, etc.).
D 3 (b) Collaborate with
storm sewer agencies to
coordinate emergency spill
responses, ensure access to
storm sewer systems during
spill events, and prevent
unintentional cross
connections of sanitary
sewer infrastructure to storm
sewer infrastructure
The City is responsible for the storm drain system within the City service area. Coordination occurs internally.
D 3 (c) Require that sewers
and connections be properly
desrgned and constructed;
Chapter 8.44 - Mandatory Connection to City Sewer and
Water Systems
Subdivision and Development Standards City of Tehachapi a. Division 3 - Standards for Sanitary Sewer
i. 3.2 - Design Standards
(l) 3-2.'l General
(al 3.2.1 .1 Sewer system improvements
(bl 3.2.1 .2 Developer cost for improvements
(c) 3.2.1.3 Developer connection and capacity
fees
The City also relies on "Standard Specifications for Public Works Construction" known as the "Green Book".
D 3 (d) Ensure access for
maintenance, inspection, or
repairs for portions of the
lateral owned or maintained
by the Public Agency;
The City does not own any portion of private sewer laterals in the service area however the following code give them access to sewer laterals:
City has the authority to enforce violation of its sewer ordinances, service agreements, or other legally binding procedures in the sanitary sewer system in the following Municipal Code sections:
Section 8.36.190 - Harmful Contributors
a. City Municipal code 8.36.2'10
i. Subtitles A-C
(1) Notification of violation
b. Written notice
i. 30-day conected action plan
D 3 (e) Enforce any violation
of its sewer ordinances.
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Sewer System Management Plan - Revision 02
Element 3 - Legal Authority
The City utilizes the following Performance lndicators for measuring effectiveness of this Element:
o Are the City ordinances and standards adequate for fulfilling the Sewer System Management Plan legal requirements?
. Does the City have a process in place for periodic review and evaluation of ordinances?
o Have there been instances when the code or ordinance did not address a need or circumstance?
Resilience is addressed in Element 3 by:
Tracking industry trends and local ordinances that may affect operations as appicable.
D 3 (f) Obtain easement
accessibility agreements for
locations requiring sewer
system operations and
maintenance, as applicable
Chapter 1 7 Subdivisions
o Section 17.32.080 - lmprovements ln Subdivisions for
which Parcel Map is Required
WDR Requirement City Code
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Element 4 - Operation and Maintenance Program
ELEMENT 4 - OPERATION AND MAINTENANCE PROGRAM
Figure 4-1: Sewer System Overview
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The City's operation and maintenance of its collection system ensures that the system is kept in good working condition. Sewer lift station operations and maintenance work and sewer line operations and maintenance is primarily conducted by City of Tehachapi staff with the support of some additional contract services. This SSMP Element 4 outlines the work that is conducted to accomplish the optimal operation and maintenance of the City's collection system.
A general overview of the City Sewer System is provided in Figure 4-1: Collection System Overview Map. lndexed pages to this map are located at City Public Works Office, City Yard and in Service Trucks.
Sewer System Management Plan - Revision 02
Element 4 - Operation and l\,laintenance Program
4.1 RegulatoryRequirements
Attachment D 4. states:
The SSMP must include those sections listed below that are appropriate and applicable to the Enrollee's system:
(a) Up-to-date map(s) ofthe sanilary sewer system, and procedures for maintaining and providing State and Regional Water Board staff access to the map(s). The map(s) must show gravity line segments and maintenance holes, pumping facilities, pressure pipes and valves, and applicable stormwater conveyance facilities within the sewer system service area boundaries.;
(b) A scheduling system and a data collection system for preventive operation and maintenance activities conducted by staff and contractors. a- The scheduling system must include:
i. lnspection and maintenance activities;
ii. Higher-frequency inspections and maintenance of known problem areas, including areas with tree root problems;
iii. Regular visual and closed-circuit televrsion (CCTV) inspections of maintenance holes and sewer pipes.
The data collection system must document data from system inspection and maintenance activities, including system areas/components prone to root-intrusion potentially resulting in system backup and/or failure.
(c) ln-house and external training provided on a regular basis for sanitary sewer syslem operations and maintenance staff and contractors. The training must cover: i. The requirements of this General Order; ii. The Enrollee's Spill Emergency Response Plan procedures and practice drills;
iii. Skilled estimation of spill volume for field operators; and iv. Electronic CIWQS reporting procedures for staff submitting data. (d) An inventory of sewer system equipment, including the identification of critical replacement and spare parts.
4.2 Collection System and Storm Water Maps
4.2.1 Sewer Collection and Convevance
The City of Tehachapi maintains a collection system map that outlines the following features:
location of the sewer lines, maintenance holes, cleanouts, pipe sizes and pipe materials, and direction of flow. Pump stations and other special structures are also identified.
Corrections for Atlas Maps are noted and submitted to Engineering Staff. Engineering Staff maintains a "Maste/'Atlas Map and will show corrections here. Updated hard-copy maps are re-distributed to maintenance staff and will display a date identifying the latest version of the Atlas Map- The City also maintains a GIS map layer of the sewer system. As-built plans and construction drawings are also maintained as the collection system is improved and new systems are added or altered. As-built drawings are required by the City as a condition of construction.
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The City's sewer system mapping and maintenance tracking is a collaborative effort by the City's Engineering, GlS, and Public Works.
4.2.2 Storm Water Convevance Mao
The City owns and operates storm water conveyance facilities within the service area. Storm water maps are maintained at the City Public Works Office as hard copy maps and as a GIS layer. This map can be printed as hard copy maps to be utilized by City maintenance staff in the event of a Sanitary Sewer Spill (Spill) to identify storm water inlets and outlets and isolate/capture wastewater that may enter the storm drain system.
4.3 Preventative Maintenance Program
The City manages, schedules, and tracks preventative maintenance activities utilizing a iwotQ based scheduling and tracking system. The system covers the following:
c Sewer Line Cleaning
o High Priority Area Cleaning and lnspections
o Maintenance hole lnspections and Maintenance
o Lift Station lnspection and Maintenance
o Customer Complaints
o Work Orders
o CCTV lnspections
Routine maintenance that requires follow-up is flagged in the itlyorQ system. The Chief Plant Operator (CPO) assigns appropriate staff to follow up on flagged tasks.
4.3.1. CCTV lnspection
The City conducts CCTV inspections utilizing two (2) methods:
'1 ) City Staff conducts CCTV investigations on an ongoing basis as an investigative tool to identify problems identified in the field such as flow restriction, customer complaints, or as a resull of line cleaning follow-up investigations utilizing a City owned push camera. 2) Contracted CCTV investigations are planned to be initiated in Fiscal Year 202612027 as part of a system-wide CCTV investigation which is anticipated to be completed in the nexl four (4) years. The City anticipates completing approximately 60,000 linear feet of CCTV annually to accomplish this four-year schedule.
Contractor CCTV information will be one of the primary methods to identify sewer line rehabilitation and replacement projects in the future. Data will be evaluated on an ongoing basis to help develop City Capital Projects.
As CCTV investigations are complete they will be analyzed to; identify, rank and prioritize areas of the sewer system that require rehabilitation and replacement. A summary of these CCTV investigations will be on file at the Public Works office when completed. A decision tree informing CCTV inspections conducted after the system wide inspection project is provided below in Figure 4-2 to help establish the need for future CCTV inspections:
City of Tehachapi
April 2026
--T
Sewer System Management Plan - Revision 02
Element 4 - Operation and Maintenance Program
(,'n{k I
Sewer System Management Plan - Revision 02
Element 4 - Operation and ldaintenance Program
\t:
-
\ | \ ---------+
\l\ _-
\t\
-
R| lr.txl I ill :lllt(.n\
R. lr\lxl I ir lll \c.r\
Rc lnslxrr irr 7 rr.rlr
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\t\
-
\() ----{
Rr"l'r.ln1r il' i \,..u\
Rc LrIx\r in 3l\c.rr\
Figure 4-2 CCTV Grades above based on NASSCO defect ranking codes
4.3.2 Line Cleaninq
The City implements a two (2) year schedule to clean the entire system which consists of multiple distinct sewer cleaning routes. Staff cleans and documents line cleaning conditions on a Routine Sewer Line Cleaning and Maintenance Hole lnspection form.
The City evaluates the frequency at which the entire system is cleaned based on the results of sewer line cleaning logs, sewer spill history and the results of CCTV data. Changes in sewer line cleaning and prioritization of sewer repairs based on sewer line cleaning observations follow the following protocol in Figure 4-3 below:
City of Tehachapi
April 2026
(,'.(ft'
:.1
(,'.'(k. I
lrxr lt: \p(,r r1.t,:r i' .rll(.'.xk.l rn.l:,,k.!ttr\
\lirn)xrc lr, llr nlxrlc
I1lrabilitat ion , r r('l)ld((rr(rrt
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\ I \ ---------o
Sewer System Management Plan - Revision 02
Element 4 - Operation and Maintenance Program
Figure 4-3: Sewer Line Cleaning Flow Chart
4.3.3 Manhole lnspection
City manholes and cleanouts/lampholes are inspected in conjunction with routine sewer line cleaning activities and as part of the High Priority List inspections. The City utilizes the Line Cleaning & Manhole lnspection Form for routine documentation of manhole conditions. When significant issues are observed during these routine manhole inspections, a more detailed inspection and assessment is conducted by maintenance staff. Relevant information from these sheets is maintained in the Public Works lt4lorQ system for consideration in future rehabilitation and/or ClP.
City o, Tehachapi
Aptil2026
Sar ht.l
I
I
unrl
clman!
ldodlv Codpctw .to,r
ccrv
Ma.le€ics Lces6
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t, Cl€enr! Ch&tg€
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Sewer System Management Plan - Revision 02
Element 4 - Operation and Maintenance Program
4.3.4 Hioh Prio riw Areas
Quarterly cleanings are performed at historical problem areas (Hot Spots) based on field crew experience. The City also participates in an active FOG Program and Root treatment program.
The current lists are dynamic and revised as needed. These documents are maintained at the City Public Works office.
4.3.5 Lift Slation Ooeration and Maintenance
The City of Tehachapi maintains one (1) lift station. Weekly inspections are performed on City lift stations. lnspections include electrical equipment, instrumentation, wet well condition, pump operation and general housekeeping. Weekly lift station and wet well inspections are performed by field crews. Lift Station wet wells are cleaned quarterly. Staff utilizes the City's Lift Station Log when completing weekly lift station inspections to document observed conditions. A copy of this log is on flle at the City's Public Works office.
A summary of Lift Station descriptions is included in Table 4-3 below:
Table 4-3 Lift Station Summary
4.3.6 Customer Reo s/Comolaints
A service request form is used to record complaints from the public or from another governmental agency. This report becomes a permanent record and is subject to review at a later time. The Operations Staff ensures all entries they are required lo make are complete and accurate. The City makes every effort to respond immediately to all sewer-related complaints followed by prompt correction of the defective condition.
4.4 Training
Training programs include formal classroom, informal on{he-job and hands-on training. Training rs conducted by both City Staff and by outside training workshops. Onthe-job cross training is pursued to ensure Staff has a proficient working knowledge of the sewer system. City Staff is also cross trained so that critical tasks can be performed without intenuption even when the crew members change. Task proflciency is a requirement for alljob positions and promotions.
Training records are maintained to monitor completed classes and for scheduling.
Crews are initially trained in the proper operation and maintenance of all new major mobile equipment and facilities by the contractor or manufacturer. Written operation and maintenance manuals are used as resource material for initial start-up training as well as new Staff training.
Safety training is an integral part of the City's program. Every Staff member receives formal training. Staff is trained in conflned space entry and in hazardous materials management, as required.
The City also plans to conduct regular training in the following areas on an annual basis:
Tucker
Road
1 I00 GPM
@ 54',TDH
FLYGT
N 3171.091-
0630006
2 10' diameter
26'depth
2937-gallon
capacity
2003 Permanent
Unit
Operating
Point
Pump
Type &
Model
Motor
Size
(trp)
#of
Pumps
E
i- City of Tehachapi
April 2026
Lift
Station
Name
Wet Well Last
Dimensions Upgrade
Emergency
Power
25 o The requirements of General Order WQ 2022-0103-DWe; o Spill Emergency Response Plan procedures and practice drills; c Estimation of spill volume and spill response/mitigation; and o Electronic CIWQS reporting procedures for staff submitting data Training records are maintained at the Public Works Office.
4.5 Equipment and Replacement Parts lnventory
Equipment and replacement parts inventories are provided as discussed below
4.5.1 Critical Parts nd Equioment
The City maintains an inventory of critical parts and equipment which are utilized for both routine and emergency operations. Operations Staff maintain City pump stations but do not perform larger projects to repair or replace underground pipelines. Repair and replacement of underground pipelines are contracted out to licensed contractors who have the equipment, materials and personnel to complete the work. The City maintains an electronic inventory of equipment, replacement parts, and supplies and follows a structured process to ensure an upto-date accounting and complete inventory of equipment and replacement parts. Parts required for preventive maintenance are identified ahead of time for each specific maintenance task.
The City maintains equipment such as sump pumps, portable generators, and traffic control for emergency response. These items are maintained in a ready state for immediate deployment.
A current list is shown below in Table 4-4. This is a dynamic list of parts and equipment that fluctuates throughout each fiscal year.
Sewer Camera
Vivax lv|etrotech: EOM-CAM-01
Model: vloc3-Cam VX255-01 , Serial # 22501 190887
1 Sewer Camera
Vivax Metrotech: EQM-CAl\r-02
Model: voam-6 VX11141. Serial # 'l 1 101 190656
1 Lift Station Pump, 25 HP, 230/460 Volt
Flygt, LSP-PMP-01
Model 3171. Seraal # 3171.091-0090
1 Lift Station Transducer
Keller America, LSP-TRD-01
Model: Level Ral. Serial # 30506
1 Lift Station Transducer
Dwyer, LSP-TRD-02
Model: PBLTX
Backup Portable Pump
Premier Pump & Power Eco Pump: E-241,2023
Serial #: 261733
1 Po.table Generator
Atlas Copco, 2020
Model: QAS 70 lD T4F, Serial# 4500G111X1R103652
1 Lift Station Generator
Cummins,2006
Model: DGCA-5772828, Serial # H06961572
1 Sewer Jetter
US Jetting E-232, 2021
Model: 4018{00
1 Description Quantity
Table 4{: Equipment lnventory
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Element 4 - Operation and Maintenance Program
1 Cily of Tehachapi
Ap(il 2026
Sewer System Management Plan - Revision 02
Element 4 - Operation and Maintenance Program
As a backup, managers have credit authority to purchase needed materials and supplies from local vendors of non-stock items when they are critically needed. ln the event of an emergency, local retailers are available to supply additional needed equipment and parts on short notice.
The City has a history of using the following contractors and vendors for wastewater related products and services from the vendors listed below. Contact information is provided below:
Table 4-6: Vendors and Contractors
The City utilizes the following Performance lndicators for measuring effectiveness of this Element:
o Were all map updates completed in a timely manner?
. Are all staff aware of procedures for providing map update information? o Are newly installed sewer assets incorporated into the system maps? . Are there tenain features or assets that should be incorporated in future map updates (e.9. exposed pipe, siphons, ARVs, surface water, etc.) o Are the City's maintenance and operations work orders periodically reviewed for accuracy and completeness?
o Does the City monitor "open", "overdue", or "not yet completed" work orders to ensure completion of tasks?
. Are inspection and maintenance activities reducing the number and volume of spills? . ls maintenance work being completed as scheduled?
. Has all training been completed as scheduled?
. Have records of training and attendance been documented and maintained? o Have contractors received, at a minimum, direction for reporting and responding to spills?
o Has the City experienced any equipment failure that inhibited a spill response? Resilience is addressed in Element 4 by:
Developing and using forms (paper or electronic) for data collection to help ensure all pertinent information is consistently collected.
Periodically evaluating inspection cycle intervals to help ensure they are optimized.
Requiring staff to demonstrate ability andior knowledge for all training activities.
Periodic review of the Vendor and Equipment lnventory List.
City of Tehachapi
Aptil2026
Core & Main Supply
Grainger Supply
(661) 393-2288
(8OO) 4724643
Plumbing Supplies and Tools
Aspect Engineering (661) 679-6709 lnstrumentation and Automation Systems
U.S.A Bluebook
Plumbers Depot
Rain for Rent
't -800-548]t234
(310) 355-1700
(661) 399-1724
Pumps and Wastewater Equipment
Bakersfleld Electric Motor Repair
Bakersfleld Well and Pump
(661) 327-3583
(661)393-9663
Pump Motors and Motor
Rehabilitation
Retailer Contact
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Service
Sewer System Management Plan - Revision 02
Element 5 - Design and Performance Provisions
ELEMENT 5 - DESIGN AND PERFORMANCE PROVISIONS
The standards and specifications for new construction and repair of the existing sanitary sewer system described in this SSMP Element are utilized to ensure a high quality, well designed, and functioning sanitary sewer system.
5.1 RegulatoryRequirements
WDR Order No. 2022-0103-DWQ Section D 5 states that the SSMP must identify:
5,2 Design and Construction Standards and Specifications The purpose of the Standards and Specifications is to provide minimum standards for the design, types and uses of materials, and the preparation of plans for construction, repair, or alteration of City sewer and water facilities. The following sections, from the City Municipal Code, address the standards expected by the City for conducting repairs or new construction related to the sewer system.
City of Tehachapi Subdivision and Development Standards a. Division 3 - Standards for Sanitary Sewers
3.2 - Design Standards
3.3 - Material Standards and Workmanship
3.4 - Construction Standards
3.6 - Pipeline Trench Earthwork
Standard Details are located in Appendix A: Division Three of the City's Subdivision and Development Standards 2021 .
ln particular, the City requires the use of the California Uniform Plumbing Code (UPC) and permits must be obtained prior to construction. All work must be completed based upon the UPC and alterations must be approved by the Public Works Director.
I
i-
(a) Updated design criteria, and construction standards and specifications, for the construction, installation, repair, and rehabilitation of existing and proposed system infrastructure components, including but not limited to pipelines, pump stations, and other system appurtenances. lf existing design criteria and construction standards are deficient to address the necessary componentspecific hydraulic capacity as specified in seclion 8 (System Evaluation, Capacity Assurance and Capital lmprovements), the procedures must include componentspecific evaluatron of the design criteria.; (b) Procedures, and standards for the inspection and testing of newly constructed, newly installed, repaired, and rehabilitated system pipelines, pumps, and other equipment and appurtenances
A link to theses Standards is provided below: https://liveuotehachapi.com/336/EnoineerinqDocuments.
City of Tehacahpi
April 2026
lf it is ever determined that the City's adopted Standards and Speciflcations are insufficient, the standards and specifications used will be those of the "Standard Specifications for Public Works Construction" also known as "the Green Book".
5.3 lnspection and Testing Procedures and Standards
The City's standard public works procedure requires work to be placed into service only after it is accepted by the Utilities Supervisor following satisfactory inspection and testing. The City provides continuous inspection during the construction of sewer facilities and believes that proper installation is the key to ensuring proper operation and maximum life expectancy. The City's inspection standards are referenced below:
City of Tehachapi Subdivision and Development Standards Division 3 - Standards for Sanitary Sewers
3.5 Acceptance
3.5.'l General
3.5.2 Cleaning
3.5.3 Testing
3.5.4 Video Survey
These standards provide for design standards, construction standards, specifications and testing requirements for the installation or reconstruction of sanitary sewer systems.
The City utilizes the following Performance lndicators for measuring effectiveness of this Element:
o Are plan checking quality control/quality assurance processes helping to ensure adherence to the standards?
o Were any design or installation deficiencies found during warranty inspections? o Are deviations from standard procedures and/or specs, testing, justified and documented? Resilience is addressed in Element 5 by:
. Staying informed of industry trends and standards.
. Performing warranty inspections of newly installed or repaired assets to evaluate design and installation practices.
o Evaluating as-built changes for trends and areas for design and performance improvements.
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Sewer System Management Plan - Revision 02
Element 5 - Design and Performance Provisions
City of Tehacahpi
April 2026
Sewer System Management Plan - Revision 02
Element 6 - Spill Emergency Response Plan
ELEMENT 6 - SPILL EMERGENCY RESPONSE PLAN
Sanitary Sewer Spills (Spills), or spills, can occur due to unforeseen accidents, unusual equipment failures, or other events not controllable by the City. A Spill response plan is maintained by the City Public Works Office for City maintenance personnel to use as guidance in responding to Spills. The Spill response plan defines procedures to:
protect public health and the environment
comply with local, state, and federal regulatory agency requirements protect Crty personnel, the waslewater collection system, and private and public properties
The Spill Emergency Response Plan (SERP) is summarized in this SSMP Element. The City has developed a comprehensive Spill Emergency Response Plan to address emergency response and follow up activities for Spills experienced in the City's collection and conveyance system. This plan is located at the City Public Works office and on maintenance staff trucks.
This document is the primary references for staff to use during all Spills. 6,1 RegulatoryRequirements
WDR Order No. 2022-01 03-DWQ Attachment D 6 states:
The Plan must include an up-to-date Spill Emergency Response Plan to ensure prompt detection and response to spills to reduce spill volumes and collect information for prevention of future spills. The Spill Emergency Response Plan must include procedures to:
a) Notify primary responders, appropriate local officials, and appropriate regulatory agencies of a spill in a timely manner;
b) 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;
c) Comply with the notification, monitoring and reporting requirements of this General Order, State law and regulations, and applicable Regional Water Board Orders:
d) Ensure that appropriate staff and contractors implement the Spill Emergency Response Plan and are appropriately trained;
e) Address emergency system operations, traffic control and other necessary response activities;
f) Contain a spill and prevenUminimize discharge to waters of the State or any drainage conveyance system;
g) Minimize and remediate public health impacts and adverse impacts on benelicial uses of waters of the State;
h) Remove sewage from the drainage conveyance system;
i) Clean the spill area and drainage conveyance system in a manner that does not inadvertently impact beneficial uses in lhe receiving waters:
City of Tehachapi
April 2026
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Sewer System Management Plan - Revision 02
Element 6 - Spill Emergency Response Plan
j) lmplement technologies, practices, equipment, and interagency coordination to expedite spill containment and recovery;
k) lmplement pre-planned coordination and collaboration with storm drain agencies and other utility agencies/departments prior, during, and after a spill event; l) Conduct post-spill assessments of spill response activities; m) Document and report spill events as required in this General Order; and n) Annually, review and assess effectiveness ofthe Spill Emergency Response Plan, and update the Plan as needed.
6.2 lnitial Spill Notification Procedures
Notifications of possible spills are received via telephone calls. All telephone calls or complaints for actual or potential spills are routed directly to the City's Public Works Office (661) 822-2200 and then to the On Call Operator or Chief Plant Operator (CPO) via City office personnel.
During non-business hours, the City's After-Hours Dispatch (661) 822-2200 will receive the call and notify the City's On-Call Operator.
lf City Staff is contacted during normal business hours Monday through Friday, excluding legal holidays, administrative staff at the City Office, calls the Supervisor or the next available Wastewater Staff to investigate the situation utilizing the contact information found in the SERP. lf City Staff needs assistance responding to the Spill, the first responder calls additional Wastewater staff utilizing the information found in Table 6-1 .
Table 6-1: Maintenance Staff Contact lnformation
lf City staff are contacted after normal busrness hours, on a holiday, or during the weekend, On-Call maintenance staff are contacted by dialing the Police Department line or 911 line. The call will be routed to the City On-Call phone, and staff responds accordingly.
After normal operating hours, one member of Maintenance Staff is on-call as a primary on-call wastewater emergency responder.
The Sewer Spill Reporting Chain of Command follows the flowchart shown in the City Spill Response Chain of Command in the complete City SERP. Reporting process and responsibilities are described in detail in the Spill Emergency Response Plan.
I
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On-Call Operator
(661') 823-7217
Chief Plant Operator (CPO)
Bryan Heffernan
Office: (66 I ) 822-2200 ext: 508
Cell: (714) 231-5949
Public Works Director
Tyler Napier
Office: (661 ) 822-2200 ext: 507
Cell: (661) 972-5858
Ci(v Office Phone Number for Normal Working Hours: (661) 822-2200 After Hours Calls to City Dispatch: 166l) 822-2200 or 9ll City of Tehachapi
April2026
Sewer System Management Plan - Revision 02
Element 6 - Spill Emergency Response Plan
6.3 Spill Response Program
The City SERP documents provide a comprehensive Emergency Response program consisting of the following:
o Spill Detection Prohibitions & Notification Procedures o Regulatory Agency Contacts
o Spill Response Procedures
o Spill Recovery and Cleanup
o Traffic Control
o Pump Station and Force Main Failure
o Water Quality Monitoring/Sampling
o Notification, Reporting and Record Keeping Requirements c Spill Volume Estimation
o Post Spill Debriefing / Failure Analysis lnvestigation o Spill Response Training (training records maintained at City office) o Spill Response Field Checklist
6.4 Spill Notification and Reporting Procedures
This section of the SERP ensures proper notification and reporting of Spills, which occur in the City's sanitary sewer system, to protect public and environmental health.
An overview of the notification and reporting process is illushated on the following page in Table 6-1 . This overview is not inclusive of all the notification and reporting requirements and procedures. The following section of this SSMP Element corresponding to each Spill category for notifications and reporting musl be referenced and followed.
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April 2026
Sewer System Management Plan - Revision 02
Element 6 - Spill Emergency Response Plan
Notification
Within two (2) 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 Califomia Office of Emergency
Services and obtain a notification control
number.
California
Office of
Emergency
Services at:
(800) 852-
7550
Reporting
. Submit Draft Spill Report within three (3) business
days of the Enrollee's 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 in which 50,000 gallons or greater discharged to surface waters; and
. Submit Amended Spill Report within 90 calendar days
after the spill end date.
CIWQS
Notification
Within two (2) hours of the Enrollee's 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 and obtain a notification control number.
California Office
of Emergency
Services at:
(800) 852-7550
Reporting
Submit Draft Spill Report within three (3) business
days of the Enrollee's knowledge of the spill;
Submit Certified Spill Report within 15 ca,endar
days of the spill end date; and
Submit Amended Spill Report within 90 calendar
days after the spill end date.
CIWOS
Spitt Category ,t:
Spills to Surface Waters and/or SW Conveyance System
Schedule Method
Schedule Method
Spill
Requirement
Spill
Requirement
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Spill Category 2:
Spills of 1,000 Gallons of creater That Do Not Discharge to Surface Waters City of Tehachapi
April2026
Sewer System Management Plan - Revision 02
Element 6 - Spill Emergency Response Plan
Not Applicable Not Applicable
Reporting
Submit monthly Certilied Spill Report to the online
CIWQS Sanitary Sewer System Database within 30
calendars days after the end of the month in which
the spills occur; and
Submit Amended Spill Reports within 90 calendar
days after the Certified Spill Report due date.
CIWQS
Notification Not Applicable
Not Applicable
Reporting
lf, during any calendar month, Category 4 spills occur, certify monthly, the estimated total spill volume exiting the sanitary sewer system, and the total number of all
Category 4 spills into the online CIWQS Sanitary
Sewer System Database, within 30 days after the end
of the calendar month in which the spills occurred.
Upload and certify a report, in an acceptable digital
format, of all Category 4 spills to the online CIWQS
Sanitary Sewer System Database, by February 1"t
after the end of lhe calendar year in which the spills
occur.
CIWQS
Spill Category 3:
Spills of Equal or Greater than 50 Gallons and Less than 1,000 Gallons That Does Nol Discharge to Surface Waters
Spill Category 4:
Spills Less Than 50 Gallons That Do Not Discharge to Surface Waters Method
Spill
Requirement
Spill
Requirement
I
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Schedule Method
Notification
Schedule
City of Tehachapi
Aptil2026
Sewer System Management Plan - Revision 02
Element 6 - Spill Emergency Response Plan
Notification
Within two (2) hours of the Enrollee's knowledge of a spill of 1,000 gallons or greater, from an enrollee- owned and/or operated lateral, discharging or threatening to discharge lo waters of the State:
Notify California Office of Emergency Services and
obtain a notification control number.
Not applicable to a spill of less than 1,000 gallons.
California
Office of
Emergency
Services at:
(800) 852-
7550
Reporting
Upload and certify a report, in an acceptable digital
format, of all lateral spills (that do not discharge to a surface water) to the online CIWQS Sanitary Sewer
System Database, by February 1st after the end of the
calendar year in which the spills occur.
Report a lateral spill of any volume that discharges to a surface water as a Category'l spill.
CIWQS
Enrollee Owned and/or Operated Lateral Spills That Do Not Discharge to Surface Waters Spill
Requirement schedule Method
Table 6-1: Spill Notification and Reporting Overview
6.4.1 Soill Notification Procedure
Spill notification procedures vary based on whether the Spill is classified as a Category 1, Category 2, Category 3, Category 4 or Enrollee Owned Lateral and are the SERP: Spill Notification section.
Notification of Spills of 1,000 Gallons or Greater to the California Office of Emergency Services
Per Water Code section 13271 , for a spill that discharges in or on any waters of the State, or discharges or is deposited where it is, or probably will be, discharged in or on any waters of the State, the City shall notify the California Office of Emergency Services and obtain a California Office of Emergency Services Control Number as soon as possible but no later than two (2) hours after:
o The City has knowledge of the spill; and
r Notification can be provided without substantially impeding cleanup or other emergency measures.
The notification requirements in this section apply to individual spills of 1,000 gallons or greater, from an Enrollee-owned and/or operated laterals, to a water of the State.
City of Tehachapi
Aptil2026
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Sewer System Management Plan - Revision 02
Element 6 - Spill Emergency Response Plan
Spill Notification lnformation
The Enrollee shall provide the following spill information to the California Office of Emergency Services before receiving a Control Number, as applicable:
. Name and phone number of the person notifying the California Office of Emergency Services;
. Estimated spill volume (gallons);
. Estimated spill rate from the system (gallons per minute); . Estimated discharge rate (gallons per minute) directly into waters of the State or indirectly into a drainage conveyance system; o Spill incident description:
o Brief nanative ofthe spill event, and
o Spill incident location (address, city, and zip code) and closest cross streets and/or landmarks;
o Name and phone number of contact person on-scene;
. Date and time the Enrollee was informed of the spill event; . Name of sanitary sewer system causing the spill;
. Spill cause or suspected cause (if known);
o Amount of spill contained;
. Name of receiving water body receiving or potentially receiving discharge; and
o Description of water body impact and/ or potential impact to beneficial uses.
Notification of Spill Report Updates
Following the initial notification to the California Office of Emergency Services and until such time that the Enrollee certifies the spill report in the online CIWQS Sanitary Sewer System Database, the Enrollee shall provide updates to the California Office of Emergency Services regarding substantial changes to:
Estimated spill volume (increase or decrease in gallons initially estimated);
Estimated discharge volume discharged directly into waters of lhe State or indirectly into a drainage conveyance system (increase or decrease in gallons initially estimated); and
Additional impact(s) to the receiving water(s) and beneficial uses.
City of Tehachapi
Aptil 2026
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Element 6 - Spill Emergency Response Plan
6.4.1 .1 Category 1 Spills (Spills to Surface Waters)
Within two (2) hours of the City's knowledge of a Category 1 spill of 1,OOO gallons or greater, discharging or threatening to discharge to surface waters:
o Notify the California Office of Emergency Services and obtain a notification control number.
Table 6-2: Regulatory Agency Notification lnformation for a Spill to Surface Water ula en Contacts
6.4.1 .2 Category 2 Spills
(Spills of 1,000 Gallons or Greater That Do Not Discharge to Surface Waters) Within two (2) hours of the City's knowledge of a Category 2 spill of 1,000 gallons or greater, discharging or threatening to discharge to waters of the State:
o Notify California Office of Emergency Services and obtain a notification control number.
6.4.1 -3 Category 3 Spills
(Spills of Equal or Greater than 50 Gallons and Less fhan 1,000 Gallons That Does Not Discharge to Surface Waters)
o Not Applicable
6.4.'l .4 Category 4 Spills
(Sp,Is Less Than 50 Gallons That Do Not Discharge to Surtace Waters) o Not Applicable
6.4.1.5 Enrollee Owned and or Operated Lateral Spills that do not Discharge to Surface Waters
Within two (2) hours of the City's knowledge of a spill of 1,000 gallons or greater, from an enrollee- owned and/or operated lateral, discharging or threatening to discharge to waters of the State:
o Notify California Office of Emergency Services and obtain a notification City of Tehachapi
Aptil 2026
Et
Within two (2) hours of the City'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 and obtain a notification control number at (800) 852-7550 Optional - lf spill is over 1 ,000 gallons, reaches waterway, or occurred in area with likely public contact, call (559) 444-2446.
Optional- lf spill reaches waterway, call (661) 549-9927 . Give the spill information.
Optiona, -lf spill reaches waterway, call state office (559) 2434005 California Office of
Emergency
Services (Cal OES)
Regional Water
Quality Control
Board (RWQCB)
Kern Gountlr
Environmental
Health
California
Department of Fish
and Wildlife
Sewer System Management Plan - Revision 02
Element 6 - Spill Emergency Response Plan
control number.
Not applicable to a spill of less than 1,000 gallons
6.4.2 Spill Reportinq Procedure
Spill reporting procedures vary based on whether the Spill is classified as Category 1, Category 2, Category 3, Category 4 or City Owned Lateral. A full description of Spill reporting requirements is found in the City SERP.
Category 1 Spills
. Submit Draft Spill Report within three (3) business days of the City's 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 in which 50,000 gallons or greater discharged to surface waters; and . Submit Amended Spill Report within 90 calendar days after the spill end date.
Spill Technical Report
Gategory 2 Spills
Category 3 Spills
Submit monthly Certified Spill Report to the online CIWQS Sanitary Sewer System Database within 30 calendars days after the end of the month in which the spills occur; and
Submit Amended Spill Reports within 90 calendar days after the Certified Spill Report due date.
c
lf, during any calendar month, Category 4 spills occur, certify monthly, the estimated total spill volume exiting the sanitary sewer system, and the total number of all Category 4 spills into the online CIWOS Sanitary Sewer System Database, within 30 days after the end of the calendar month in which the spills occurred.
Upload and certify a report, in an acceptable digital format, of all Category 4 spills to the online CIWQS Sanitary Sewer System Database, by February 1"t after the end of the calendar year in which the spills occur.
Eil
o Submit Draft Spill Report within three (3) business days of the City's knowledge of the spill;
o Submit Certified Spill Report within '15 calendar days of the spill end date; and . Submit Amended Spill Report within 90 calendar days after the spill end date.
Category 4 Spills
City of Tehachapi
April2026
Sewer System Management Plan - Revision 02
Element 6 - Spill Emergency Response Plan
Enrollee Owned and/or Operated Lateral Spills That Do Not Discharge to Surface Waters
Upload and certify a report, in an acceptable digital format, of all lateral spills (that do not discharge to a surface water) to the online CIWQS Sanitary Sewer System Database, by February 1rt after the end of the calendar year in which the spills occur.
Report a lateral spill of any volume that discharges to a surface water as a Category 1 spill.
6.5 SERP Training
The City implements a formal training program which will include annual training of City Staff on this SSMP Element and SERP. The City will also require contractor personnel to train on and follow SERP through their contracts. The City will maintain a log of SERP Training as training is completed.
6.6 Spill lmpact Mitigation Program
The Spill Mitigation Program is comprised of the mitigation practices contained in the SERP, which is on file at the City Public Works Office.
The SERP includes Water Quality Monitoring, Beneficial Uses identification and Spill lmpact Mitigation section providing information to post water body warning and closure signs in the event that a spill reaches a surface water, and City Public Works is required to conduct water quality sampling for the spill impact assessment. Typically, County Public Health conducts water body sampling.
6.7 Spill Coordination with Stormwater Management Agencies and Public Water Systems
City Public Works manages the City's Stormwater Program which includes the entire City service area. Maps of the stormwater collection and conveyance system are available to City staff which allows them to isolate any areas impacted by a sewer spill, recover this wastewater and retum it to the sewer system. Municipal water system conlacts are identified for notification of spills that may occur within '1000 ft of a surface water intake in the City SERP as warranled.
6.8 Post Spill lnvestigations
The City conducts Post Spill lnvestigations for Cat 1, 2, 3, and 4 spills as warranted per instructions in Section 1 1 of the 2023 SERP.
The City utilizes the following Performance lndicators for measuring effectiveness of this Element:
Have staff's spill response efforts helped to prevent the discharge of sewage to surface waters?
Do postspill assessments indicate staff are following the procedures outlined in the SERP?
ls SERP training effective and are staff demonstrating adequate knowledge and abilities?
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City of Tehachapi
April 2026
Sewer System Management Plan - Revision 02
Element 6 - Spill Emergency Response Plan
Resilience is addressed in Element 6 by:
. All staff with sewer response duties are trained to respond to spill events. . Post-spill assessments are conducted to evaluate staff's adherence to the SERP and to identify areas for improvement.
. Data collection forms are used to direct staff to collect all the required data to be submitted to CIWQS and are designed as a guide to a proper spill event response. . The City employees several different spill volume estimation methods to account for different circumstances.
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City of Tehachapi
Apral 2026
Sewer System l\4anagement Plan - Revision 02
Element 7 - Pipe Blockage Control Program
ELEMENT 7 - PIPE BLOCKAGE CONTROL PROGRAM
7.'l RegulatoryRequirements
WDR Order No.2022-0103-DWQ Attachment D 7 states:
The Sewer System Management Plan must include procedures for the evaluation of the Enrollee's service area to determine whether a sewer pipe blockage control program is needed to control fats, oils, grease, rags and debris. lf the Enrollee determines that a program is not needed, the Enrollee shall provide justification in its Plan for why a program is not needed. The procedures must include, at minimum:
(a).An implementation plan and schedule for a public education outreach program that promotes proper disposal of pipe blocking substances; (b). A plan and schedule for the disposal of FOG generated within the sanitary sewer system service area. This may include a list of acceptable disposal facilities and/or additional facilities needed to adequately dispose of FOG generated within a sanitary sewer system service area;
(c). The legal authority to prohibit discharges to the system and identify measures lo prevent spills and blockages;
(d). Requirements to install grease removal devices (such as traps or interceptors) and the development of design standards for such devices, maintenance requirements, BMP requirements, record keeping and reporting requirements; (e). Authority to inspect grease producing facilities, enforcement authorities, and whether the City has sufficient staff to inspect and enforce the FOG ordinance; (f). An identification of sewer system sections subject to FOG blockages and estab shment of a cleaning maintenance schedule for each section; and lmplementation of source control measures for all sources of fats, oils, and grease reaching the sanitary sewer system for each section identifled above City of Tehachapi
Aptil2026
Page 'l of 7-5
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The City of Tehachapi has identified a significant number of commercial facilities that contribute fats, oils and grease (FOG) into the City's sewer system. FOG has been a contributing factor in sanitary sewer spills and requires the City to conduct addrtional maintenance. Roots and disposable wipes have also been identified as pipe blocking sources. 7,2 Pipe Blockage Control Program Public Education and Outreach The City of Tehachapi currently has approximately 45 miles of sanitary sewer pipelines. The service area includes a variety of residential and commercial facilities. The focus of an effective Pipe Blockage Control Program includes residential customers, commercial facilities and commercial food service/preparation iacilities.
The City's FOG Program outreach began in 2024, and it remains a major component of the SSMP program to help reduce sewer spills. Prior to program "kick off'the City worked to inform FSEs of the FOG Program and ils requirements. FOG information flyers were mailed to each FSE. Following the distribution of the flyers; FSE permit applications were issued to each owner or manager of each facility. This allowed each affected party to ask questions and receive information regarding the FOG Program prior to any inspection of the facility.
Sewer System Management Plan - Revision 02
Element 7 - Pipe Blockage Control Program
The City has made available the following items to each Food Service Establishment (FSE) within the city:
. Best Management Practices (BMP) in English and Spanish . Grease Hauler List
. Cleaning Record Form (English and Spanish)
. Contractor Pumping Record
. How to Clean Your Grease Trap Document
lnspectors have these items available when an FSE is inspected. The cost of the program is included in the sewer rates. At this time permitting and inspection require no additlonal fees.
Residential outreach is also an important element for reducing the amount of FOG entering the collectton system. While requiring grease traps and interceptors is not possible to the residential community, education is.
ln addition to the City's FOG Control Program outreach, the City has independently developed outreach matedals for other pipe blocking materials such as "disposable" wipes and any other consumer items that do not belong in the sewer through a flyer labeled "Toilets Are Not Trashcans'.
The City provides the following outreach and education materials that consist of the following:
. Residential and commercial outreach on proper Disposal of Wipes - "Toilets are not Trashcans" flyer,
. Residential Outreach Page: "Don't Let Roots, Wipes, and FOG Cause Sewer Problems" Copies of educational outreach documents for food service establishments are available on the City's Public Works Office.
The City refers the appropriate businesses to the available information, to assist them with FOG compliance. Examples of these outreach materials are also found in Appendix 7A and 78.
7.3 FOG Disposal Facilities
The City does not own nor operate a FOG disposal facility; however, licensed FOG hauling contractors are identified as part of the City's FOG Pipe Blockage Control Program, and the City provides a list of these licensed haulers to each food service establishment (FSE).
A list of grease trap and interceptor vendors, pumping and waste hauling contractors in Kern County that haul FOG for disposal is provided below:
City ot Tehachapi
April 2026
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Thomas Refuse Service (760) 379-2618
Valley Pumping Service (661) 588-0258
Quality Pumping
All Valley Environmental (559) 498-8378
Commercial Grease Management (661) 374-0756
Grease Haulers in Kern County
Sewer System Management Plan - Revision 02
Element 7 - Pipe Blockage Control Program
7.4 Discharge Prohibition Legal Authority and Spill Prevention Measures The City FOG Program is governed by the City's Municipal Code, Title 8, Chapter 8.36, Article V: Fats, O/s and Grease Control Program and the Cities FOG Program Standard Conditions.
The FOG Program includes:
. Establishment of enforcement authority
. Limits on types of wastes discharged to public sewers . Requirements for specific design and construction of grease interceptors and/or traps, . Requirements for the installation of grease inlerceptors . Requirements for maintenance of grease interceptors,
. Enforcement, and
. lmplementation measures, as appropriate.
lf the City finds that a grease interceptor or gravity separating device installed prior to the effective date of the ordinance that is incapable of adequately retaining the grease or oil in the wastewater flow, the City notifies the user, in writlng, that an adequate interceptor or gravity separating device shall be installed within a specific, reasonable time period.
Additionally, the City Municipal Code prohibits pipe blocking materials in the following code sections:
o Chapter 8.36.030 General Discharge Prohibitions
A link to the City Municipal Code is provided below:
https://librarv.municode.com/caltehachapi/codes/code of ordinances
7.5 Requirements to lnstall Grease Removal Devices
See Section 7 .4 above.
City of Tehachapi
Aptil2026
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(661) 214-9288
7.6 FOG Control Program lnspection, Enforcement, and Staffing The City utilizes the FOG Municipal Code and FOG Program Standard Conditions as the legal authority for program implementation. This code establishes the regulations and requirements goveming the protection of the sewer system from fats, oils and grease.
The goals of the FOG Control Program are to reduce the amount of fat, oils, and grease enlering the sewer system, inspect all food service establishments for FOG violations, provide education to FSES and reduce maintenance costs from grease related problems. Doing so should reduce the risk of Sanitary Sewer Overflows and increase the longevity of the sewer collection lines.
The City's FOG Control Program meets all the guidelines required by the State and Regional Water Quality Control Board and includes following:
Restaurants and food service establishments (FSEs) that generate grease are required to obtain a Source Control/FOG Permit.
FSEs are inspected at a minimum of once per year. FSEs may be inspected more frequently as determined by the City and/or as warranted by current program compliance and past history.
All FSES are required to use best management practices (BMP) to reduce grease discharged to the sewer system (e.9.; store waste grease in barels to haul off site, scrape remaining food off plates and into trash receptacle before washing).
Any FSE planning a remodel is required to include installation of a grease trap/interceptor.
All new FSE construction will require installation of a grease trap/interceptor, regardless of size (type of foods produced may negate the need for trap installation; a variance will be issued in lieu of permit for trap installation).
Exemptions or variances shall be available to FSES that do not generate grease, do not cause related sewer blockages, and/or have limited space on their property that makes it impossible to install a grease trap/interceptor.
Garbage grinders will be prohibited in all restaurants except where specifically allowed by the City.
Options regarding program fees may be evaluated annually. Program fees are intended to help alleviate the burden of the program costs and to assist in facilitating a successful FOG Control Program. The City currently is absorbing the program and inspection costs.
7.7 Problem Area ldentification and Sewer Cleaning
One objective of a FOG control program is the identification of trouble spots, or "Hot Spots", that are likely or prove to have grease accumulation. The City identifies potential grease problem areas by tracking locations and causes of dry weather blockages and sewer spill's. FOG accumulation is also documented when seen in the sewer system during a visual inspection by Closed Circuit Televiston (CCTV). lf the specific trouble spots occur in close proximaty to several restaurants or grease-producing facilities the FSEs will be considered a potential source of the City of Tehachapi
April 2026
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Sewer System Management Plan - Revision 02
Element 7 - Pipe Blockage Control Program
Sewer System l\,lanagement Plan - Revision 02
Element 7 - Pipe Blockage Control Program
FOG in the sewer and increased inspections will take place. Additionally, the identified locations will be noted in the O&M program and will be monitored for cleaning frequency requirements.
City marntenance staff maintains a sewer atlas depicting each manhole/line segment location.
This data is used in conjunction with cleaning logs, for which Staff will note the date and time of flushing as well as debris type and severity. The City has compiled a list of 'Hot Spots'within the sewer service area. These areas of concerns have been put on an increased cleaning schedule and will be monitored annually for cleaning frequency. The City tracks these "Hot Spots" on a Sewer Atlas and which is accessed/maintained at the Public Works office.
Additional information about cleaning and maintenance is included in Element 4: Operations and Maintenance Program.
7.8 Other Source Control Measures
The City's source control efforts to reduce or eliminate pipe blocking materials and related problems in the pipelane sections identified in the Hot Spol maintenance list are addressed through the actions previously described in this Element. Additionally, the City provrdes outreach and education to residentral customers.
Have there been any blockages/spills from any identified problem areas? Have there been spills due to excessive fats, oil, grease, roots, or non-disposable wipes discovered in the sewer system during the audit period? Are there serial violators among FSEs?
Are enforcement trends decreasing?
Are Source Control and Collection staff included in the plan check process? City of Tehachapi
Aptil 2026
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The City utilizes the following Performance lndicators for measuring effectiveness of this Element:
Resilience is addressed in Element 7 by:
. lnspection of select manholes and pipelines directly downstream of grease producing businesses lo ensure source control is effective.
. Residential FOG outreach and education program.
. Performance of regular assessments of system assets to monitor performance. . QAJQC process for evaluating pipe cleaning effectiveness.
Sewer System Management Plan - Revision 02
Element 7 - Pipe Blockage Control Program
APPENDIX 7
7A What Not to Flush Flyer
78 Roots, Wipes and FOG Outreach
City of Tehachapi
Aptil2026
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Wa need
Toilets Are N
Many household
cleaning products are
labeled and marketed
as disposable; many
baby hygiene products are labeled both
disposable and flushable. And while these
products may be marketed as a convenience item in this way, the truth is that
these household wipes and cleaning towelettes have the ability to clog and stop up not only the sewer line on your property, but also can cause blockage and service problems in the public sewer system and pump stations. Unlike toilet paper, these products don't break down once they are flushed. They can cause blockages in your private sewer lateral, especially older pipelines that may have grease, roots, or other obstructions already existing.
A repair of the private
sewer lateral can leave the
homeowner with an expensive repair bill. On a
larger scale when these
products make their way
6re.s{
into the public sewer system they collect together and cause clogs in the sewer marn lines and get tangled in
pump stations requiring repair or replacement of equipment. ,. -D TEHACHAPI
The following items
should never be flushed
into the sewer system:
. Disinfecting wipes, Baby
wipes.
. Q{ips.
r Toilet cleaning pads.
. Mop or "Swiffer" type
refills.
. Paper towels.
o Moist towelettes.
. "Disposable" Kitty Litter
o Dental Floss
. Any consumer item that
is not toilet paper.
ausrNEss
RESIDErlCE I
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Public Works Department
(661) 822-8559 ext: 506
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C ITY O F
CALIFORNIA
TE HACHAPI
City of Tehachapi Pipe Btockage Controt Program
Don't Let Roots, Wipes, and FOG Cause Sewer Problems
Your home's ptumbing is connected to the pubtic wastewater system through an underground pipe catted a "private sewer laterat." As the property owner, you own this pipe and are responsibte for keeping it ftowing freety and repairing cracks and breaks. Laterals do not necessari[y end at the curb or property tine but extend attthe way to the pubtic sewer main, which often is located in the middte of the street. The City of Tehachapi maintains the public sewer.
Preventing Sewer Spilts
These steps can help you avoid the unpteasant and usualty costty experience of a sewage backup in your home.
Do not pour Fats, Oits or Grease (FOG) down drains. After soaking a greasy pan, place a paper towel over the drain basket to catch grease and food partictes as you slowty pour the water down the drain. Put the paper towel in your green waste cart.
Cottect waste cooking oil and grease in a container with a tight-fitting tid and bring it to a hazardous waste cottection center or dispose of into the trash.
Do not flush wipes, diapers or feminine hygiene products, even if they are tabeted "ftushabte." As homes age, roots often infiltrate sewer latera[s. So-catted ftushabte products catch on these intrusions, or on grease buitd-up, and form clogs and sewer backups.
Don't planttrees and [arge shrubs near sewer lines. Roots growtoward sewer line cracks in search of water, often forming root batls that ctog the tine.
When buying a home, consider having the sewer lateraI inspected. A [icensed ptumber's video inspection may reveatcracks, breaks, offsets, and root intrusion.
The pipe may need to be cleaned, repaired, or reptaced.
A Simple Device Can Protect Your Home
An overflow protection device or sewer backwater vatve can prevent sewage from backing up into your home. lf a ctog occurs in the pubtic sewer main or in your private lateraI downstream of the device, an overftow protection device keeps the spitt outside.
White stitt not desirabte, an outside spitt avoids property damage, substantia[[y reduces heatth risks, and can be cteaned up much more quickty and easity. lf you have an overftow protection device (backwater valvelbackftow preventer), inspect it periodicatty to make sure it is working correctly and not inadvertentty covered with
CITY OF
C A L IFO R N IA
CITY OF
TEHACHAPI
CALIFORNIA
dirt. lf an overftow occurs and the device is not operating property, your insurance might not fu[[y cover the cost of property damage.
lf you don't have an overftow protection device, consider insta[[ing one. We recommend that a [icensed plumber insta[[ the device, since elevation and location are criticatfor it to function property.
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Tree Roots
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Homeowners wi[[ notice the first signs of a stow ftowing drainage system by hearing gurgting noises f rom toitet bowls or drains become slower when emptying their tubs. A complete blockage will occur if no remedial action is taken to remove the roots and resutting btockage.
Example: Root Ball in S€ryer
Lateral
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Roots thrive in the warm, moist, nutrient-rich atmosphere above the water level inside sanitary sewers. The flow of warm water inside the sewer pipe causes water vapor to escape to the cotd and/or dry soil surrounding the pipe. Tree roots are attracted tothe water vapor leavingthe pipe and they fotlowthe vapor trailto the source of the moisture, which is usualtyfrom cracks or loose joints in the sewer pipe. Tree roots witl penetrate the opening to reach the nutrients and moisture inside the pipe. This continues in winter even though trees appear to be dormant. Once inside the pipe, roots wilt continue to grow and if not disturbed, they wilt comptetety fitt the pipe with many hairy root masses at each point of entry. The network of roots grows, forming a root bat[ inside the pipe, trapping grease, tissue paper, and other debris discharged from the residence or business.
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TEHACHAPI
As roots continue to grow, they exert considerabte pressure at the crack orjoint where they entered the pipe. The force exerted by the root growth ca n break the pipe a nd may resuttintotal cottapse of thepipe. Severe root intrusion and structura tty damaged pipes witt require reptacement. Tree roots growing inside sewer pipes are generally the most expensive sewer maintenance item experienced by City residents. Rootsfrom trees growing on private property throughout the city sewer areas are responsibte for many of the sanitary sewer backups and damaged sewer pipes. Homeowners shoutd be aware of the location of their buitding sewer and refrain from planting trees, bushes, and hedges nearthe buildingsewers. You may want to consu [t tree experts and ask their advice. The replacement cost of a buitding sewer tine as a resutt of damage from tree roots can be very expensive.
lf your home was buitt before 1980, you may have clay or iron pipes. Thesepipesare more [ikelyto have cracks or ioint probtems caused by ground settting or freezelthaw cyctes than PVC pipes. Look at your yard and walk above the a rea where your buitding sewer is tocated. Watk with a person on each side of you, hotding hands with your arms stretched out wide. lf anyone bumps into a tree or large bush before you get to the street or sewer main, your sewer laterat may be subject to root intrusion.
Other than removing the trees or reptacing the bui[ding sewers with PVC pipe, there isn't any permanent solution. lf the btockage is bad, the roots have to be cut and ftushed away. The foam-type aquatic herbicide can be added a couple weeks tater. The foaming herbicide fitts the pipe, kitting the roots on the top of the pipe as wett as the sides. Annualuseusuattywitl keep them from retu rning. Ptease do not use any copper sutfate type root-kitter. The copper crysta ts witt onty affect roots on the bottom of the pipe, and since roots are found in the top of the pipe, above the water levet, onty a tiny partof the root probtem witt be affected. Atso, the copper wit[ end u p at the wastewater treatment plant and may adversely affect the studge treatment process and cost the municipatity and you more money.
Y OF
CALIFORNIA
lf your plumber has to cut out roots from your buitding sewer, ptease catt (661) 822-8559 ext: 506 and the Pubtic Works Department know. We will send a crew to make sure that the roots the ptumber cut out do not cause problems for your neighbors downstream.
Sewer System Management Plan - Revision 02
Element I - System Evaluation and Capacity Assurance Plan ELEMENT 8 SYSTEM EVALUATION, CAPACITY ASSURANCE AND
CAP]TAL iMPROVEMENT PLAN
8.1 RegulatoryRequirements
Attachment D 8 states:
The Plan must include procedures and activities for:
o Routine evaluation and assessment of system conditions; . Capacity assessment and design criteria;
. Prioritization of corrective actions; and
. A capital improvement plan.
(a).System Evaluation & Gondition Assessment: The Plan must include procedures to o Evaluate the sanitary sewer system assets utilizing the best practlces and technologies available;
o ldentify and justify the amount (percentage) of its system for its condition to be assessed each year;
o Prioritize the condition assessment of system areas that:
. Hold a high level of environmental consequences if vulnerable to collapse, failure, blockage, capacity issues, or other system deficiencies; . Are located in or within the viclnity of surface waters, steep terrain, high groundwater elevations, and environmentally sensitive areas; o Are within the vicinity of a receiving water with a bactenal-related impairment on the most current Clean Water Act section 303(d) List;
o Assess the system conditions using visual observations, video surveillance and/or other comparable system inspection methods;
o Utilize observations/evidence of system conditions that may contribute to exiting of sewage from the system which can reasonably be expected to discharge into a water of the State;
o Maintain documents and recordkeeping of system evaluation and condition assessment inspections and activitiesi and
o ldentify system assets vulnerable to direct and indirect impacts of climate change, including but not limited lo: sea level rise; flooding and/or erosion due to increased storm volumes, frequency, and/or intensity; wildfires; and increased power disruptions-
(b).Capacity Assessment & Design Criteria: The Plan must include procedures to identify system components that are experiencing or contributing to spills caused by hydraulic deficiency and/or limited capacity, including procedures to identify the appropriate hydraulic capacity of key system elements for:
c Dry-weather peak flow conditions that cause or contributes to spill events; City of Tehachapi
April 2026
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Sewer System Management Plan - Revision 02
Element 8 - System Evaluation and Capacity Assurance Plan o The appropnate design storm(s) or wet weather events that causes or contributes to spill events;
o The capacity of key system components; and
o ldentify the major sources that contribute to the peak flows associated with sewer spills.
o The capacity assessment must consider:
. Data from existing system condition assessments, syslem inspections, system audits, spill history, and other available information; . Capacity of flood-prone systems subject to increased infiltration and inflow, under normal local and regional storm conditions;
. Capacity of systems subject to increased infiltration and inflow due to larger and/or higher-intensity storm evenls as a result of climate change; . lncreases of erosive forces in canyons and streams near underground and above- ground system components due to larger and/or higher-intensity slorm events;
. Capacity of major system elements to accommodale dry weather peak flow conditions, and updated design storm and wat weather events; and . Necessary redundancy in pumping and storage capacities. (c). Prioritization of Corrective Action: The findings of the condition assessments and capacity assessments must be used to prioritize corrective actions. Prioritization must consider the severity of the consequences of potential spills. (d). Capital lmprovement Plan: The capital improvement plan must include the following items:
o Project schedules including completion dates for all portions of the capital improvement program;
o lnternal and external project funding sources for each project; and o Joint coordination between operation and maintenance staff, and engineering staff/consultants during planning, design, and construction of capital improvement projects; and lnteragency coordination with other impacted utility agencies. 8,2 System Evaluation E Condition Assessment
The City developed a hydraulic model to analyze the City's sewer system performance in 2019. The 2019 report summarizes the analysis of the City's existing sewer system including the gravity collection system and lift station.
The 2019 analysis updated the previously existing hydraulic model to evaluate the sewer collection system and identify deficiencies associated with existing and future flows. Future flows were reviewed for 10 years with planning increments of 2-Year,s-Year, and 1o-Year development plan phasing.
The trunk sewer system (gravity sewer greater than or equal to l0-inch and some segments of 8-inch) were included in the hydraulic model. A skeletonized hydraulic model was constructed to evaluate the collection system under existing and future flow City of Tehachapi
April2026
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Sewer System Management Plan - Revision 02
Element 8 - System Evaluation and Capacity Assurance Plan conditions. Pipe segments with invert information from the GPS field survey were included, amounting to approximately 32% of the total collection and conveyance system.
Existing and future flows for collection system segments not imported into the hydraulic model were assigned to the closest downstream manhole.
The gravity collection system conditions were primarily determined based on a hydraulic evaluation of pipeline sizes, slope, and downstream restrictions. A limited number of gravity sewer collection deficiencies were identified to serve existing and future llow conditions. The existing Tucker Road Lift Station was identified as sufficient to serve the existing and future flows. No capital improvement projects are recommended for the lift station and force main.
8.3 Capacity Evaluation & Design Criteria
The hydraulic model identified three (3) areas that would be capacity deficient in the future based on future development:
o Dennison Road Trunk Main
o Mountain View Trunk Main
o Downtown Trunk Main
Additionally, the City has identified one other project that will be necessary as a result of development:
o East Side Lift Station
Design criteria will be evaluated when these projects are designed in the future. lf existing City design criteria is not adequate, additional criteria will be developed on a project specific basis.
8.4 Prioritization of Corrective Actions
Each project was identified to support development, based on the timing of each building tract. There are no other corrective actions identified within the City sewer service area.
8.5 Capital lmprovement Plan
As discussed above, all projects are scheduled based on the timing of each building tract Developers are responsible for 100% of the funding for these projects. Currently the Downtown Trunk Main is projected to support the Sage Ranch Development which is anticipated to begin in the next 5-6 years. A capital improvement plan for this and other projects will be developed to supporl each project prior to these areas readiness to receive sewer service from the Cily.
8.6 Additional WDR Requirements
lf the City is required to develop a Sewer Master Plan and/or Condition Assessment in the future, it will consider the following WDR requirements:
City of Tehachapi
April 2026
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Sewer System Management Plan - Revision 02
Element 8 - System Evaluation and Capacity Assurance Plan o Prioritize the condition assessment of system areas that:
. Hold a high level of environmental consequences if vulnerable to collapse, failure, blockage, capacity issues, or other system deficiencies; . Are located in or within the vicinity of surface waters, steep terrain, high groundwater elevations, and environmentally sensitive areas; c Are within the vicinity of a receiving water with a bacterial-related impairment on the most current Clean Water Act section 303(d) List;
o Assess the system conditions using visual observations, video surveillance and/or other comparable system inspection methods;
o Utilize observations/evidence of system conditions that may contribute to exiting of sewage from the system which can reasonably be expected to discharge into a water of the State;
c ldentify system assets vulnerable to direct and indirect impacts of climate change, including but not limited to: sea level rise; flooding and/or erosion due to increased storm volumes, frequency, and/or intensity; wildflres; and increased power disruptions o Outline how capacity assessment considers:
. Data from existing system condition assessments, system inspections, system audits, spill history, and other available information; . Capacity of flood-prone systems subject to increased infiltration and inflow, under normal local and regional storm conditions;
. Capacity of systems subject to increased infilkation and inflow due to larger and/or higher-intensity storm events as a result of climate change; . lncreases of erosive forces in canyons and streams near underground and above- ground system components due to larger and/or higher-intensity storm events;
c Capital lmprovement Plan that includes:
. Project schedules including completion dates for all portions of the capital improvement program;
. lnternal and external project funding sources for each prolect; and . Joint coordination between operation and mainlenance staff, and englneering staff/consultants during planning, design, and construction of capital improvement projects; and lnteragency coordination with other impacted utility agencies.
The City utilizes the following Performance lndicators for measuring effectiveness of this Element o Has the City maintained its schedule for routine O&M and is data being reviewed in a timely manner?
o CCW Gravity Mains
o Manholes
o Pump Stations
o Are inspection efforls discovering deficiencies in a timely manner? o Are mainlenance and inspection activities properly documented? o Number of capacity-related spills or surcharge condition during the audit period.
City of Tehachapi
April 2026
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Sewer System Management Plan - Revision 02
Element 8 - System Evaluation and Capacity Assurance Plan o Has the City followed its system evaluation/condition assessment schedule? o Has the City followed its prioritization/corrective procedures for sewer repair and capacity improvement projects?
o Have projects been completed before deficiencies caused failures? o Has the City's capital improvement plan schedule been followed? Resilience is addressed in Element 8 by:
Annual review of the Capital lmprovement Plan by all appropriate individuals including Managemenl, Engineering, and Operations during budget preparatlon o
Cily of Tehachapi
April 2026
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Sewer System Management Plan - Revision 02
Element 9 - Monitoring, Measu.ement, and Program Modifications ELEMENT 9. MONITORING, MEASUREMENT & PROGRAM MODIFICATIONS The City monitors the implementation of the SSMP elements in order to measure the effectiveness of the City's SSMP in reducing sewer spills. The manner in which each SSMP element is monitored and evaluated and the schedule with which the City completes this monitoring and evaluation is described in this SSMP Element.
Regulatory Requirements
WDR Order No. 2022-0103-DWQ Section D g states
The Plan must include an Adaptive Managemenl section that addresses Planimplementation effectiveness and the steps for necessary Plan improvement, including:
(a). Maintaining relevant information, including audit findings, to establish and prioritize appropnale Plan activities;
(b). Monitoring the implementation and measuring the effectiveness of each Plan Element;
(c). Assess the success of the preventative maintenance activities; (d). Updating Plan procedures and activities, as appropriate, based on results of moniloring and performance evaluations; and
(e). ldentifying and illustrating spill trends, including spill frequency, locations and estimated volumes.
Data Management
The City manages, schedules, and tracks preventative maintenance activities through the City iwork Computer Work Scheduling & Tracking Program. The system covers the following:
o Sewer Line Cleaning
o Hot Spot Area Cleaning and lnspections
o Manhole lnspections and Maintenance
o Lift Station lnspection and Maintenance
o Customer Complaints
o Work Orders
o CCTV lnspections
Triennial SSMP Audit Reports are maintained at the City's Public Works office. Corrective actions from audit reports are generally addressed in updates of the City's SSMP. More immediate actions are completed in accordance with the recommended coneclive action schedule in each triennial audit.
Monitoring SSMP Elements
Monitoring the City's SSMP focuses on each element in terms of its implementation and effectiveness. The SSMP includes performance indicators for each element, which are intended to measure effectiveness by City staff. ln addition, implementation responsibilities are included for each element to help ensure the SSMP is managed and implemented as intended.
City of Tehachapi
April2026
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Sewer System Management Plan - Revision 02
Element I - Monitoring. Measurement, and Program Modifications
9.4 PreventativeMaintenanceProgramAssessment
The City's Preventative Maintenance Program includes CCTV inspection, line cleaning, visual manhole inspection, lift station maintenance, high priority area identification and maintenance.
The City will review these operation and mainlenance practices annually and compare them with annual Spill records. Use of City maintenance tracking systems allow for inspections and maintenance following predetermined schedule and for progress to be tracked. Regular maintenance meetings are a forum for communiczlting the status of work tasks following identified schedules and those that may need additional attention. O&M meetings are also an opportunity to discuss any problems which may have been identified. Changes are readily made to lhe planned work as needed to address higher priorities in the collection system.
9.5 SSMP Updates
The City is committed to continuous improvement and monitors and evaluates performance of work programs and SSMP elements to ensure intended outcomes are achieved while looking for areas for improvement. Although the SWRCB requires that the SSMP be updated every six years, the SSMP is considered a living document and may require updating on a more frequent basis.
At a minimum, the City will review and revise the SSMP annually as warranted. The Public Works Director is responsible for revising and maintaining the SSMP. A revision record will be maintained to track changes.
9.6 Sewer Spill Trends
The City monitors spill trends during required annual CIWQS Reports (Annual Reports), at a minimum every three years during required audits, utilizing its maintenance database, inspection records and CIWQS data. These resources are helpful in planning and programing work, and adjusting as needed, enabling the City to adapt and to adjust based on a review of system data.
The City will continue to plan and adjust operation and maintenance practices so that the number of Spills experienced on an annual basis are minimized.
The City utilizes the following Performance Indicators for measuring effectiveness of this Element o Are SSMP Elements periodically evaluated for effectiveness? o Are work activities and spill events being documented? o Has a plan and schedule been established to address audil findings/deficiencies from the last audit?
o ls Trend Analysis being performed on spill causes?
o Have work programs been assessed and updated as necessary? Resilience is addressed in Element 9 by:
o Development of performance indicators to measure effecliveness of the SSMP. o Performing periodic reviews of the SSMP to help ensure it is being properly implemented.
c Developing and implementation of a timeline to correct deficiencies found during the audit process.
o Annual evaluation of operations and maintenance programs to help ensure effectiveness.
City of Tehachapi
Aptil 2026
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ELEMENT 1O . SEWER SYSTEM MANAGEMENT PLAN PROGRAM AUDITS SSMP audits are required to identify and correct deflciencies in the most current revision of the City's SSMP and provide a schedule to conect identified deficiencies. This SSMP Element outlines the audit process and idenlifies staff responsible for conducting or participating in SSMP audits and generating the required SSMP Audit Report.
10.'l Regulatory Requirements
WDR Order No. 2022-0103-DWQ Section D 10 requtres
The Plan shall include internal audit procedures, appropriate to the size and performance of the system. Additionally, the General Order requires;
The internal audit shall be appropriately scaled to the size of the system(s) and the number of spills. The Enrollee's sewer system operators must be involved in completing the audit. At minimum. the audit must:
c Evaluate the implementation and effectiveness of the Enrollee's Sewer System Management Plan in preventing spills;
o Evaluate the Enrollee's compliance with this General Order; o ldentify Sewer System Management Plan deflciencies in addressing ongoing spills and discharges to waters of the State; and
o ldentify necessary modifications to the Sewer System Management Plan to correct deficiencies.
The Enrollee shall submit a complete audtt report that includes o Audit findings and recommended corrective actions;
c A statement that sewer system operators' input on the audit flndings has been considered; and
o A proposed schedule for the Enrollee to address the identified deficiencies.
1. Gather appropriate documents using the SSMP Audit Data & Records Request, which is provided in Appendix 10A.
2. lnterview City staff responsible for the administration, operations, maintenance and engineering associated with system performance information.
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Sewer System Management Plan - Revision 02
Element 10 - Sewer System Management Plan Program Audits
10.2 SSMP Program Audits
The Chief Plant Operator and the Public Works Director are the Legally Responsible Officials (LROs). The LROS or their designee are responsible for assuring the SSMP audit is conducted and complete based on the schedule outlined on the SWRCB lookup website which requires audits to be conducted at a three-year interval from the prior audit. Audits should be conducted with the cooperation of the City staff responsible for sewer system operations and maintenance, administrative staff, and engineering staff. When conducting the SSMP audit, City staff must evaluate the effectiveness of each SSMP Element. A comprehensive, effective review of the City's SSMP musl be documented in a SSMP Audit Report.
10.2.1 Summarv of Procedure:
City o, Tehachapi
April 2026
Sewer Syslem Management Plan - Revision 02
Element 10 - Sewer System Management Plan Program Audits
3. Develop Audit Report and reference all documents reviewed and used as evidence of compliance with the WDR. Create a plan and schedule for updates to the SSMP based on changes in operational strategies or deficiencies found in the SSMP.
4. Evaluate the effectiveness of the City's SSMP and compliance with each WDR requirement using the ranking methodology outlined in Table 10-1.
Table 10-l : SSMP Audit Ranking Criteria
"l certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations."
Subsequent SSMP audits must be conducted continuously on a three-year interval following the schedule outlined below which is based on the dates required by the 2022 WDR:
. SSMP Audit Period: May 2, 2024 - May 2, 2027 (Audit rcpo/r due 1112128\ . SSMP Update: Update due 512/31.
Additional SSMP Audit and SSMP Update regulatory schedules required after the dates shown above should be identified in the following link:
httDs://www.waterboards.ca.qov/water issues/proq rams/sso/lookup/ To assist in the audit process, the City should consider quarterly or semiannual reviews and revisions to specific SSMP Elements and associated supporting documents. These reviews and revisions will help ensure current operational practices and procedures are reflected in the City of Tehachapi
Ap.il 2026
In Compliance All requirements specified in the elemenl are met Substantial Compliance The majority of requirements in the element are met.
Partial Compliance Half of the requirements in the element are met N,4arginal Compliance Less than half of the requirements in the element are met.
Out of Compliance None of the requirements in the element are mel E
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Ranking Ranking Basis
The SSMP Audit Report must be signed and certified by the Legally Responsible Official (LRO).
The SSMP Audit Report must be certified using the language provided below:
Sewer System Management Plan - Revision 02
Element 10 - Sewer System Management Plan Program Audits SSMP and documentation of these activities is readily available during an audit by the Regional Water Quality Conlrol Board, and/or State Water Resources Control Board.
SSMP Audit Reports must be kept on file and submitted to the online CIWQS Sanitary Sewer Database within six (6) months after the end of the 3-year audit period.
The City utilizes the following Performance lndicators for measuring efiectiveness of this Element:
o Have audits been performed as required?
. Have the audits assessed compliance, implementation, and effectiveness? o Have deficiencies been identifled?
. Has a plan and schedule to rectify the deficiencies been established? Resilience is addressed in Element 10 by:
o Periodically evaluating key performance indicators during the audit period to assess effectiveness and make corrections, if necessary, prior to the audit. o Evaluating previous audits to ensure deficiencies have been rectified. . Scheduling the audit due dates and completing the audit on time. r
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City of Tehachapi
April 2026
Sewer System Management Plan - Revision 02
Element 10 - SSMP Audil
APPENDIX 1O
10A SSMP Audit Data and Records Request
City of Tehachapi
Ap.il2026
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Sewer System Management Plan - Revision 2
Element '11
- Communication Program
ELEMENT 11 . COMMUNICATION PROGRAM
Communicating the objectives of the SSMP and the importance of sanitary sewer system managemenl practices to the public is essential. An informed public can assist and support the City by reducing customer caused blockages, which will potentially decrease ewer spills. 1 1.1 Regulatory Requirements
WDR Order No. 2022-0 103-DWQ Section D 1 1 states:
The Plan must include procedures for the Enrollee to communicate with:
o The public for
o
Spills and discharges resulting in closures of public areas, or that enter a source of drinking water, and
The development, implementation, and update of its Plan, including opportunities for public input to Plan implementation and updates.
Owners/operators of systems that connect into the Enrollee's system, including satellite systems, for:
System operation, maintenance, and capital improvement-related activities '11.2 Communication Program
The purpose of the City sanitary sewer system communication program is to educate stakeholders, which include residential and commercial users of the collection system, about the SSMP. Public awareness of different components of the SSMP is accomplished through different mediums and may reach different audiences. The following are activities that the City practices to increase awareness and education about the importance of having a properly constructed, maintained, and operated sewer collection system.
Table 11-1: City Communication Program Overuiew
City Website:
https://www.liveuptehachapi,co
mi
Year-round
City Council Meetings First and Third Monday of
each month @ 6:00 pm
A
Social Media - Facebook,
lnstagram, X, Youtube Year-round Alt
City Office Year-round Ail
Activity Frequency Stakeholders
City of Tehachapi
Aptil 2026
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Sewer System Management Plan - Revision 2
Element 11 - Communication Program
'1 1.2.1 Citv Website
lnformationispostedonthecitywebsite,@ndincludeS
reports, documents, maps, links, City meeting minutes and agendas, educational material and public service announcements. The City SSMP can be found on the City websile. Sewer spill emergency contact information is also provided on the Clty website.
Updates and revisions to the SSMP will be posted and maintained on the City website when completed.
11 .2.2 Cily Council Mqetinqs
City Council Meetings are generally held on the first and third Monday of each month at the City Police Department Community Room located at 220 West C Street. Utility sewer operation, Sewer Spill Reports, SSMP updates, significant revisions, audits and SSMP status reports are presented at the Council meetings to receive input.
1 1 .2.3 Social lvledia
The City uses social media (Facebook, lnstagram, X, & YouTube) to post information about utility projects, public education and outreach, and highlight ilems on the Council agenda.
11.2.4 Cily Public Works Office
The City Office located at 750 & 800 Enterprise Way, has copies of educational material, public service announcements, and staff that provide assistance and education to the public. Office hours are Monday- Friday from 7:00am to 5:30pm.
1 1.2.5 Public Notices for Spills - Public Areas
The public is notified of spills and discharges that result in closures of public areas (including streets and surface waters) by erecting cones and banicades, and by posting warning signs in accordance with the Spill Emergency Response Plan. The necessary equipment and signage are kept in the City's emergency response vehicles.
1 1.2.6 Public Notices for Soills - Public Water Systems The City has not identilied water purveyors, other than the City itself that would need be notified in the event of a sewer spill if one occurred within the vicinity of a source of drinking water. lf systems are identified in the future their contact information will be listed in the is section of the SSMP so that City staff may contact them in the event of a sewer spill in their vicinity.
11.3 Satellite and Tributary Systems
The City does not have systems that are tributary or satellite to their collection and treatment systems therefore this requirement is not applicable.
The City utilizes the following Performance lndicators for measuring effectiveness of this Element Does the City place all SSMP action items on the agenda for regular counsel/board meetings?
Does the City have signage, or other means, readily available to notify the public of environmental or public risk factors related to a sewage spill? o
o
City oI Tehachapi
Aptil 2026
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Sewer System Management Plan - Revision 2
Element 1 1 - Communication Program
o Does the City perform outreach to residential customers? Resilience is addressed in Element 1 1 by:
o Use the SSMP as a lool to communicate to the public how the City is managing the system.
o Maintain a consistent presence in the service area by attending community events or issuing periodic newsletters or other communications to the public. o Make it clear and easy for the public to contact the City.
City ol Tehachapi
April2026
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