Banning City Council
July 9, 2024

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1.5 Scope of Work
The scope of work for this Sewer System Study Update consists of the following tasks:
1) Collect and review all available reports, data, and other relevant information. 2) Determine population, land use and wastewater flow projections for existing and future development areas within the City’s limits.
3) Update the wastewater model, which includes the following tasks. a) Develop model using H2OMAP Sewer from MWH Soft, Inc. b) Select sub-basins within the collection system for calibration and analysis. c) Development of wastewater flow factors and peaking factors d) Calibration of the sewer model using flow monitoring data. 4) Use the calibrated model to detect sewer system deficiencies under the existing sewer flow and with the ultimate residential build-out development wastewater flow. 5) Prepare a report, including a summary of system deficiencies within the City’s existing system, recommend system improvements to alleviate these deficiencies, and prepare a CIP.

1.6 Acknowledgments
Carollo Engineers wishes to acknowledge and thank all of the City’s staff for their support and assistance in completing this project. Special thanks go to Paul Toor, George Thacker, John Holub, Jerry Aguilar, and Perry Gerdes.

1.7 Project Staff
The following Carollo Engineers staff members were principally involved in this project:

David Prasifka, P.E. : Partner-In-Charge
Dennis Wood, P.E. : Technical Review
Inge Wiersema, P.E. : Project Manager/Project Engineer
Jim Patton, P.E. : Staff Engineer
Chris Graf : Staff Engineer
Coleen Sullivan : Technical Staff/GIS
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2.0 LAND USE AND WASTEWATER FLOW PROJECTIONS
This Section describes the City’s land use and estimated wastewater flow projections, which are based upon the City’s land use plans. The land use discussion is divided into existing land use, specific plan land use for the near-term developments, and general plan land use for the City’s ultimate land use. The wastewater flow projection discussion is divided into wastewater flow factors, peaking factors, and concludes with a wastewater flow projection summary.

2.1 Existing and Future Land Use
The existing, near-term, and build out land use types in the City described in this Section are based on the City’s General Plan [6] , parcel information [7], aerial photography [8], and the specific plans for Five Bridges [9], Pardee [10], Black Bench [11], Loma Linda [12], and BDS [13]. The land use designations that are described in these documents are summarized below.
• Residential - Rural. This land use category includes all residential designations that have a density of 0-1 dwelling units per acre (du/ac).
• Residential - Very Low Density. This land use category includes all residential designations that have a density of 1-2 dwelling units per acre (du/ac). Based on this definition, this category includes the following land use designations: Very Low Density Residential [6]; Residential [13]; and PA-12, PA-13, and PA-15 [11]. • Residential - Low Density. This land use category includes all residential designations that have a density of 2-5 dwelling units per acre (du/ac). Based on this definition, this category includes the following land use designations: Low Density Residential [6], PA-1 through PA-11, PA-14, and PA-16 through PA-18 [11]; Minimum residential area of 6,000 square foot and greater [9]; Residential Areas 4, 8, 18, 24, 31, 33, 46, 47, 52, 53, 60, and 61 [10]; and Residential Areas 1, 3, 4, and 5 [12].
• Residential - Medium Density. This land use category includes all residential designations that have a density of 5-9 dwelling units per acre (du/ac). Based on this definition, this category includes the following land use designations: Residential Areas 1, 6, 11, 14, 17, 21, 22, 26, 28, 30, 35-45, 49-50, 55, 58, 62, and 64 [10]; and Residential Areas 2, 6, 7, 8, and 9 [12].
• Residential - High Density. This land use category includes all residential designations that have a density of 9-20 dwelling units per acre (du/ac). Based on this definition, this category includes the following land use designations: Garden Courts and Townhomes [9].
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc • Commercial. This land use category includes markets, service stations, restaurants, office buildings, hospitals, car washes, and other commercial service establishments.
• Industrial. This land use category includes all service industry and manufacturing establishments. This City does not include any heavy industry or water intensive industrial customers.
• Public. This land use category includes various types of public facilities, such as schools, libraries, office buildings, parking structures, and recreational areas. The (recycled) water demand in this category varies greatly. • Streets and Right-of-Way. This land use category includes all major streets, flood control channels, powerline easements, and freeway right-of-ways, such as Interstate 10. Small residential streets are included in the gross residential area. • Airport. This category includes the airport buildings, runways, and all airport related industrial and commercial areas. These include the Airport Operations District, the Airport Clear Zone District, the Airport Facilities District, and the Airport Planned Development areas.

2.1.1 Existing Land Use
The City of Banning has approximately 4,901 acres of developed area, which equals to about 21 percent of the City’s service area. An aerial view of the City, that depicts the location of the existing developments [8], is shown on Figure 2.1. This figure shows that the majority of the developments are located along Interstate 10, while the non-developed areas are mostly located north of Interstate 10 and are partially covered with steep hillsides of the San Bernardino Mountains. The land use distribution of the existing developments is summarized in Table 2.1. As shown on this table, the majority (63 percent) of the developed areas are residential land use categories, while the remaining 37 percent of the developments are public, industrial, and commercial land uses.

Table 2.1 Existing Development by Land Use Category
Sewer System Study
City of Banning
Land Use Category Area (acres) Area (%)
Rural Residential 335 7%
Very Low Residential 373 8%
Low Residential 1,440 29%
Medium Residential 767 16%
High Residential 170 3%
Commercial 666 14%
Industrial 773 16%
Public 378 8%
Total 4,901 100%
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2.1.2 Specific Land Use Plan
As mentioned in Section 1, the City has recently received five Specific Plans that describe the land use plans for proposed developments within the City boundaries. The five specific plans cover a combined area of approximately 3,270 acres, which equals approximately 14 percent of the City’s service area. The developments and their respective planning areas and the distribution of the planned 10,308 dwelling units are as follows:

Black Bench : 1,500 dwelling units

Sunset : 2,160 dwelling units

BDS : 481 dwelling units

Pardee : 5,224 dwelling units

Loma Linda : 944 dwelling units
The specific plan boundaries are depicted on Figure 2.1. The land use distribution of these five specific plans is summarized in Table 2.2.

Table 2.2 Specific Plan Land Use Summary
Sewer System Study
City of Banning
Phase 1 Build Out Development/
Land Use Category Area
(acres)
Area
(%)
Area
(acres)
Area
(%)
Black Bench
Very Low Residential 0 0% 104 15%
Low Residential 111 42% 387 57%
Public o 0% 13 2%
Parks 26 10% 52 8%
Fire Modification Zone 126 48% 126 19%
Black Bench Total 264 100% 683 100%
BDS
Very Low Residential 140 100% 372 100%
BDS Total 140 100% 372 100%

FIVE BRIDGES
Low Residential 68 46% 204 45%
Medium Residential 39 27% 118 26%
High Residential 14 10% 43 9%
Commercial 0 0% 37 8%
Parks 26 17% 51 11%
Five Bridges Total 147 100% 455 100%
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Table 2.2 Specific Plan Land Use Summary (Continued)
Sewer System Study
City of Banning
Phase 1 Build Out Development/
Land Use Category Area
(acres)
Area
(%)
Area
(acres)
Area
(%)
PARDEE
Low Residential 102 25% 389 30%
Medium Residential 31 8% 564 44%
Commercial 0 0% 36 3%
Public 5 1% 32 2%
Parks 26 6% 52 4%
Golf Course 220 54% 220 17%
Pardee Total 409 100% 1,293 100%

LOMA LINDA
Low Residential 26 9% 79 17%
Medium Residential 36 13% 107 23%
Commercial 0 0% 12 3%
Public 0 0% 10 2%
Parks 37 13% 74 16%
Golf Course 185 65% 185 40%
Loma Linda Total 284 100% 467 100%
GRAND TOTAL 1,243 3,270
Note: For the phasing of parks and golf courses, it is assumed that 50 percent of parks and 100 percent of golf course would be developed in Phase 1.

As listed in Table 2.2, the development of these specific plan areas is divided into two periods, Phase 1 and Build Out. Phase 1 is anticipated to be completed around year 2010, while build out conditions are projected to be reached around year 2030. The combined area of Phase 1 is approximately 1,243 acres, or 38 percent of the entire specific plans area at build out (3,270 acres).

2.1.3 General Plan Land Use
The ultimate land use for the City’s service area is specified in the City’s General Plan [6], which was adopted by City Council in January, 2006. The City’s General Plan differentiates 27 land categories. For the purpose of this study, these categories are consolidated into ten generic land use designations, as shown on Figure 2.2. The areas of these ten land use categories are calculated from the City’s GIS and are summarized in Table 2.3.

As shown in Table 2.3, residential land use categories cover 60 percent of the City’s service area, while natural open space is the second largest land use, covering about 22 percent of the City’s service area.

As shown on Figure 2.2, the majority of the areas that are not currently developed or part of the specific plans, are designated as natural open space and rural residential and cover hillsides of the San Bernardino Mountains.
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2.2 Population
The City’s population will increase significantly with the addition of the five new developments. The total developed area and the project population for Phase 1 and Built Out conditions are summarized in Table 2.4, while details are included in Appendix B.

Table 2.4 shows that the five developments will increase the population to about 56 percent of the City’s built out population, while covering only 31 percent of the City’s service area.

Hence, the development of the remaining areas will primarily consist of lower density land use types, such as LDR and AR. Based on 2.6 people per dwelling unit [14], the average density of the remaining development beyond the planning horizon of this study is approximately 1.0 du/ac.

The City’s projected population is summarized in Table 2.5. These projections are based on the following assumptions:
• The five developments will reach Phase 1 conditions in 2010 Table 2.3 General Plan Land Use Summary
Sewer System Study
City of Banning
Land Use Category Area (acres) Area (%)
Rural Residential 6,759 29%
Very Low Residential 2,369 10%
Low Residential 3,385 14%
Medium Residential 1,099 5%
High Residential 510 2%
Commercial 1,090 5%
Industrial 773 3%
Public 1,061 4%
Open Space - Parks 1,292 5%
Open Space - Nature 5,288 22%
Total 23,628 100%
Table 2.4 Population Projections by Area
Sewer System Study
City of Banning
Area Description Area
(acres)
Area
(%)
Population
(ppl)
Population
(%)
Existing Development 4,901 21% 28,982 29%
5 Developments - Phase 1 598 3% 7,239 7%
5 Developments - Phase 2 to Build Out 1,911 8% 21,913 22% Remaining Development 16,218 69% 41,651 42%
Total 23,628 100% 99,785 100%
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc • The five developments will reach Build Out conditions in 2030 • The entire City’s will reach Build Out conditions in 2050. (1) The Existing City includes the City’s entire service area with the exception of the five developments. (2) Five Developments: Pardee, Black Bench, Loma Linda, Five Bridges, and BDS.

2.3 Historic Wastewater Flows
The current average daily flow received at the City’s wastewater treatment plant is approximately 2.8 MGD. Historical average daily flows received at the City’s plant are shown in Figure 2.3, while historical average monthly flows are shown in Figure 2.4.

Figure 2.3 Historic Average Daily Plant Flows
As shown in Figure 2.3, the historical average daily wastewater flows at the Banning WWTP have been relatively constant in the period 1998 through 2004, while flows increased significantly in 2005. This increase was attributed to the recalibration of the existing flow meter at the WWTP.

Table 2.5 Population Projections by Year
Sewer System Study
City of Banning
Year Existing City(1) Five
Developments(2) Total Growth of Period
2005 28,982 0 28,982
2010 31,998 7,239 39,237 7.1%
2030 47,548 29,152 76,700 4.8%
2050 76,495 29,152 105,647 1.9%

0.0 0.5

1.0 1.5

2.0 2.5

3.0 1998 1999 2000 2001 2002 2003 2004 2005
Flow (mgd)
Flowmeter
Recalibrated
(March 2005)
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc The wastewater flow increased from 2.2 mgd (1998) to 2.3 mgd (2004), which equates to an increase of 4 percent. In 2005, the average daily flow increased to 2.8 mgd, which is 20 percent higher than recorded in 2004.

As shown in Figure 2.4, the seasonal wastewater flows variation at the Banning WWTP has also been fairly constant during this period, with February (month no. 2) being the month with the lowest flow and August (month no. 8) being the month with the highest flow.

Based on a review of the average monthly flows in the period 1998-2005, it was observed that the maximum monthly flow is 10 percent higher than the average monthly flow, while the minimum monthly flow is 10 percent lower than the average monthly flow. These variations are very typical for residential areas.

Figure 2.4 Historic Average Monthly Plant Flows

2.4 Wastewater Flow Factors
A wastewater flow factor (WFF) is the estimated amount of wastewater generation for a certain land use type. WFFs are typically expressed in gallons per day per capita (gpd/cap) for residential areas and gallon per day per acre (gpd/ac) for commercial, industrial, and public areas. These factors are used to estimate the average daily flow (ADF) for existing, phase one and ultimate development conditions by multiplying the WFF with the total number of people or acres within each land use area. The WWFs used for the projections presented in this study were derived from the calibration of the existing wastewater flow of

2.8 mgd, an average density of 2.6 ppl/du, and acreage per land use type, and the estimated percent build out for each subbasin (see Figure 5.2). Based on this information 50 55
60 65
70 75
80 1 2 3 4 5 6 7 8 9 10 11 12
Month
Average Monthly Flow (mgd)
1998
1999
2000
2001
2002
2003
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc the number of equivalent residential units (ERUs) and the average wastewater flow per ERU were calculated. The WFFs used in this study are summarized in Table 2.6. (1) Based on a calibrated population of 29,000 people and 18,280 existing ERUs, which was calculated using the percent build out of existing developments by land use type and by subbasin. (2) Based on 153.4 gpd/ERU, which was obtained from a density of 2.6 ppl/du and an average wastewater flow of 59 gpd/cap. The 59 gpd/cap was calculated from an average daily wastewater flow of 2.8 mgd, a density of 2.6 cap/ERU, and 18,280 ERUs.

As shown in this table, the flow factors used for projecting wastewater flows for the existing service area are lower than those used for projecting flows for the new development areas.

The lower factors are based on the model calibration results, as discussed in Section 4, and reflect the estimated wastewater flows of the current developments in the City.

The higher flow factors used for the new development areas provide projected wastewater flows that are higher than the flows used for the existing developments to provide a more conservative basis for planning and account for densification within existing development areas.

2.5 Peaking Factors
It is important to consider the variability of wastewater flow when evaluating system hydraulics and sizing sewer system facilities and pipelines. Peaking factors represent the ratio of a particular flow condition compared to the average dry weather flow (ADWF) and are typically obtained by reviewing historical data.

The peaking conditions that are of particular significance to hydraulic analysis of the sewer system include the Peak Dry Weather Flow (PDWF) and the Peak Wet Weather Flow (PWWF). A more detailed description of the various wastewater flow components, including ADWF, PWWF, PDWF, and Infiltration and Inflow (I/I), are described in Section 4.

Table 2.6 Wastewater Flow Factors
Sewer System Study
City of Banning
Existing Future
Land Use Category Density(1)
(ERU/ac)
WFF(2,3)
(gpd/ac)
Density(1)
(ERU/ac)
WFF(2,3)
(gpd/ac)
Rural Residential (RR) 0.5 77 0.5 77
Very Low Density Residential (VLDR) 1.5 230 2 230
Low Density Residential (LDR) 3 460 4 537
Medium Density Residential (MDR) 4 614 7 1,074
High Density Residential (HDR) 10 1,534 15 2,224
Commercial (C) 10 1,534 10 1,534
Industrial (I) 5 767 10 1,534
Public Facilities (P) 0 0 3 399
Open Space 0 0 0 0
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc This section also presents daily historical flow data recorded at the WWTP (Figure 4.1) that are used to determine peaking factors.

Some systems do not experience a strong response to wet weather events due to the good condition of pipelines, soil characteristics, and rainfall patterns. These systems are typically sized for PDWF only. The PDWF is the peak flow on a dry day, which is determined by the diurnal flow pattern.

Systems that do experience a strong response in wastewater flows after a rainfall event should be sized for PWWF. Typical wet weather peaking factors of 2.0 are used to estimate peak flows at treatment facilities, while peaking factors ranging between 3.0 and

4.0 are used to estimate peak flows in the smaller upstream areas of sewer systems.

The flow monitoring program conducted for this study did not collect flows during a major storm event and did not contain hourly flow data. Therefore, it was decided that the peaking factors be based on the historical daily values obtained at the WWTP as presented on Figure 4.1. As explained in more detail in Section 4 and presented in Table 4.1, the following peaking factors were used in this sewer system study:
• PDWF = 1.7 times ADWF
• PWWF = 2.5 times ADWF (into treatment plant)
• PWWF = ADWF plus 500 gpd/ac (in collection system)

2.6 Diurnal Curve
In addition to seasonal flow variation, wastewater flows vary throughout a 24-hour period.

In residential areas, flow peaks typically occur in the morning and late afternoon, while in non-residential areas, flow peaks typically occur throughout the day when businesses and industries are operating. Some industries use two or three 8-hour shifts, resulting in more continuous wastewater flows. As the City is primarily characterized by residential land use types and usage patterns of commercial and industrial users are unknown, one aggregate hourly wastewater flow curve, also knows as diurnal curve, is used in this study to describe and simulate wastewater flows throughout the day. The diurnal curve created from wastewater flows received at the WWTP on May 24, 2006 is shown on Figure 2.5. 1114
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0.0 0.5

1.0 1.5

2.0 2.5

3.0 3.5

4.0 4.5
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Hour
Flow (mgd)
Average Daily Flow
(3.1 mgd)
Min. Flow 1.5 mgd
(PF = 0.5)
Max. Flow 4.1 mgd
(PF = 1.3)
Based on Historical Data for May 24, 2006.

Figure 2.5 Wastewater Diurnal Curve
As shown on this figure, the maximum hour peaking factor is 1.3 and occurs around 10 AM.

This factor is consistent with the flows recorded on January 12, 2005, when the average daily and peak hour flow were 2.8 and 3.4 mgd, respectively, resulting in a peak hour flow of 1.2. This diurnal curve was used for the hydraulic modeling analysis conducted for this study.

2.7 Wastewater Flow Projections
The City’s wastewater flows for existing development areas and the five new developments were projected by using the wastewater flow factors as shown in Table 2.5, along with the calculated land use areas within the City limits. For residential areas, the average density of dwelling units per acre (du/ac) was also used to estimate the population and use per capita wastewater flow rates. The wastewater flows were projected for the existing developments (infill) in the City and the five developments under Phase 1 and Build Out conditions. The projected wastewater flows are summarized in Table 2.7 and Table 2.8, while detailed estimates by development for each of the planning periods (existing conditions, Phase 1, and Build Out) are included in Appendix B. 1115
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Table 2.7 Wastewater Flow Projections - ADWF
Sewer System Study
City of Banning
Service Area 2005
(mgd)
2010(1)
(mgd)
2015(2)
(mgd)
2020(2)
(mgd)
2025(2)
(mgd)
2030(1)
(mgd)
2050(3)
(mgd)
Existing City 2.8 3.6 4.5 5.5 6.4 5.4 8.6
Black Bench 0.00 0.1 0.1 0.2 0.2 0.4 0.4
Five Bridges 0.00 0.2 0.2 0.3 0.3 0.6 0.6
Pardee 0.00 0.2 0.3 0.4 0.4 1.4 1.4
Loma Linda 0.00 0.1 0.1 0.1 0.1 0.3 0.3
BDS 0.00 0.0 0.1 0.1 0.1 0.1 0.1
Total 2.8 4.3 5.4 6.5 7.6 8.2 11.4
Note: some totals may not add up due to rounding.
1) The projected flows for the developments in 2010 and 2030 are Phase 1 and Build Out conditions, respectively. 2) The projected flows for years 2015, 2020, and 2025 are based on the population growth rate in this period per the City’s UWMP [15].
3) The projected flows for year 2050 is based on ultimate build out conditions.

Table 2.8 Wastewater Flow Projections - PDWF
Sewer System Study
City of Banning
Service Area 2005
(mgd)
2010(1)
(mgd)
2015(2)
(mgd)
2020(2)
(mgd)
2025(2)
(mgd)
2030(1)
(mgd)
2050(3)
(mgd)
Existing City 4.8 6.1 7.7 9.3 10.8 9.1 14.7
Black Bench 0.0 0.2 0.2 0.3 0.3 0.7 0.7
Five Bridges 0.0 0.3 0.4 0.5 0.6 1.1 1.1
Pardee 0.0 0.4 0.5 0.6 0.7 2.3 2.3
Loma Linda 0.0 0.1 0.2 0.2 0.2 0.5 0.5
BDS 0.0 0.1 0.1 0.1 0.1 0.2 0.2
Total 4.8 7.3 9.2 11.0 12.8 13.9 19.4
Note: Peak Dry Weather Flows are based on a peaking factor of 1.7 times the ADWF listed in Table 2.7 (per Table 4.1). 1) The projected flows for the developments in 2010 and 2030 are Phase 1 and Build Out conditions, respectively. 2) The projected flows for years 2015, 2020, and 2025 are based on the population growth rate in this period per the City’s UWMP [15].
3) The projected flows for year 2050 is based on ultimate build out conditions. 1116
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3.0 WASTEWATER TREATMENT
This section discusses the existing wastewater treatment facilities in the City, the planned expansions, and the potential use of satellite plants to treat wastewater from one or multiple development areas. Cost estimates of the various treatment options are presented and compared to determine the most beneficial treatment configuration for the City that can accommodate the City’s future wastewater flows. This section concludes with recommendations regarding the City’s expansion of wastewater treatment facilities.

3.1 Existing Wastewater Treatment
All wastewater flows collected within the City’s service area are currently treated at one facility, the Banning WWTP. This plant is located in the southeast portion of the City adjacent to Smith Creek and east of Hathaway Street as shown on Figure 5.1. The City has operated the treatment plant at this site since 1925 and has incrementally expanded various process components to maintain sufficient capacity to treat the increasing wastewater flows.

The wastewater treatment plant is designed to treat wastewater to secondary standards and consist of the following processes: headworks, screening, grit removal, two primary clarifiers, two trickling filters, and two secondary clarifiers. The headworks of the WWTP was sized for an ultimate capacity of 7.8 mgd, while the treatment plant has a rated capacity of 3.6 mgd. The average wastewater flow that is currently treated is approximately

2.8 mgd. Based on an evaluation of historical biochemical oxygen demand (BOD5) concentrations it was determined that the existing trickling filters have the potential of exceeding the waste discharge requirements (WDR) limits of 30 mg/L BOD5 when the flows exceed 2.8 mgd [2]. The City can use chemical treatment to increase the capacity of the existing trickling filters to 3.6 mgd.

The solids treatment at the Banning WWTP consists of a gravity thickener, two primary digesters, a secondary digester, sludge drying beds, and percolation ponds. Anaerobic digesters and sludge drying beds are used for sludge stabilization and dewatering. The plant currently discharges its effluent to percolation ponds. Solids are periodically removed from the drying beds and hauled off by a private contractor. Once off site, the sludge is disposed by a reputable solids hauler at a designated landfill site.

3.2 Future Wastewater Treatment
The projected growth in the City will increase the total wastewater flow that needs to be treated beyond the capacity of the existing Banning WWTP. As shown in Table 2.7, the projected ADWF for year 2030, which is the planning horizon of this study, is 8.2 mgd. As the existing WWTP has a rated capacity of 3.6 mgd, the City would need to expand their wastewater treatment capacity by 4.6 mgd to 8.2 mgd.
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc There are several options to increase the City’s WWTP treatment capacity. The alternatives investigated in this study are:
1) Expansion of the Banning WWTP.
2) Expansion of the Banning WWTP and the construction of a new Satellite Plant that would treat wastewater from the Pardee development.
3) Expansion of the Banning WWTP and the construction of a new Satellite Plant that would treat wastewater from the Loma Linda and Black Bench developments. 4) Expansion of the Banning WWTP and the construction of two new Satellite Plants that would treat wastewater from the Pardee, Loma Linda and Black Bench developments.

The treatment plant capacities assumed for each alternative are summarized in Table 3.1.

All alternatives are based on a planning horizon of year 2030, when the five developments are projected to reach build out. The future rated treatment capacities are based on the projected dry weather flows. It is assumed that the treatment plants would be designed such that they can handle the variation in flows during PDW and PWW conditions.

Table 3.1 Wastewater Flow Projections Summary
Sewer System Study
City of Banning
Alternative WWTP
(mgd)
Pardee SP
(mgd)

LL & BB SP
(mgd)
Total
(mgd)
1: WWTP only 8.2 0 0 8.2
2: WWTP + Pardee SP 6.8 1.4 0 8.2
3: WWTP + LL&BB SP 7.5 0 0.7 8.2
4: WWTP + Pardee SP + LL&BB SP 6.1 1.4 0.7 8.2
Notes:SP = Satellite Plant; LL&BB = Loma Linda and Black Bench It is assumed that all alternatives would include tertiary treatment of all wastewater flows in the City to serve the recycled water system. As discussed in the recycled water master plan prepared by Carollo Engineers in 2006 [3], the projected recycled water demand in the City exceeds the projected wastewater flows under high demand conditions. It is therefore necessary that all wastewater flows be treated to tertiary standards to maximize the City’s recycled water use and reduce the need for additional potable water supplies to accommodate growth.

The four options are discussed in detail in the subsequent subsections. It should be noted that the potential expansion of the solids handling facilities, which would be equal in all alternatives, are not included in this analysis.
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3.2.1 Alternative 1 - WWTP Expansion Only
The expansion of the Banning WWTP was evaluated in the study Update of the Banning Wastewater Treatment Expansion Plan that was prepared in 2006 [2]. This report evaluates various treatment process options and recommends that the plant be expanded to 7.8 mgd in three stages. The study recommends that the existing trickling filter (TF) capacity be removed and be replaced with activated sludge (AS) treatment. The capacity expansion is also based on the use of activated sludge. The study includes three options and site plans for the implementation of these processes using oxidation ditches, rectangular clarifiers, or circular clarifiers. However, no recommendations on the preferred option are made. The study identifies three stages to phase the process conversion and plant expansion. The rated capacity of the existing plant is also reduced from 3.6 mgd to

2.8 mgd due to the re-rated capacity of the existing trickling filters [2]. The planned capacity per stage, as identified in this study, is as follows:
• Stage 1: 4.05 mgd (addition of 1.25 mgd of AS capacity) • Stage 2: 5.0 mgd (addition of 3.75 mgd of AS capacity and removal of 2.8 mgd of TF capacity)
• Stage 3: 7.8 mgd (addition of 2.8 mgd of AS capacity) In addition to these treatment process changes and expansions, the City would need to provide 7.8 mgd of tertiary treatment to allow use of treated effluent for irrigation per Title 22 of the California Code of Regulations. Tertiary treatment processes include filtration, disinfection, chemical storage, chemical feed, recycled water pumping, and a control system.

This alternative consists of centralized wastewater treatment at the existing Banning WWTP site by expanding its current capacity up to the projected average DWF of 8.2 mgd, as listed in Table 3.1. Hence, expansions beyond the planned upgrades to the 7.8 mgd capacity identified in the Update of the Banning Wastewater Treatment Expansion Plan [2] would be required. It is assumed that Stage 3 would be increased from 2.8 mgd to 3.2 mgd to reach a total capacity of 8.2 mgd.

A cost estimate of the treatment process upgrades and expansions required to increase the City’s treatment capacity to 8.2 mgd is summarized in Table 3.2. The unit cost used for these estimates are discussed in Section 5.

Based on a depreciation period of 30 years, 5 percent interest, and an average treatment capacity of 8.2 mgd, the overall unit treatment cost of this alternative is $650/mgd. It should be noted that tertiary treatment and solids handling costs are not included as these costs would be the same for all alternatives, and thus, do not impact the alternatives comparison. 1120
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Table 3.2 Cost Estimate Alternative 1 - WWTP Expansion Only Sewer System Study
City of Banning
Description WWTP
($million)
Satellite Plants
($million)
Total
($million)
Construction Cost + Contingency $23.9 $0.0 $23.9
Land Acquisition Cost $0.0 $0.0 $0.0
Mark-Ups $6.0 $0.0 $6.0
Total Capital Cost $29.9 $0.0 $29.9
Note: Tertiary treatment and the potential expansion of the solids handling facilities are not included.

3.2.2 Alternative 2 - One Satellite Plant for Pardee
This alternative consists of wastewater treatment at two locations, the existing Banning WWTP site and a new Satellite Plant for the Pardee development.

The existing WWTP would be expanded from its current capacity to the projected average DWF of 6.8 mgd, as listed in Table 3.1. Hence, the required expansion is less than the planned upgrades the 7.8 mgd capacity identified in the Update of the Banning Wastewater Treatment Expansion Plan [2]. It is assumed that Stage 3 would be decreased from 2.8 mgd to 1.8 mgd to provide a total capacity of 6.8 mgd.

The Pardee Satellite plant would be located near the intersection of Eighth Street and Highland Springs Avenue, where it would collect and treat the wastewater flows generated by this new development. The projected average DWF for this satellite plant is 1.4 mgd.

A cost estimate of the treatment process upgrades and expansions required to increase the City’s treatment capacity to 8.2 mgd is summarized in Table 3.3. The unit cost used for these estimates are discussed in Section 5.

Based on a depreciation period of 30 years, 5 percent interest, and an average treatment capacity of 8.2 mgd, the overall unit treatment cost of this alternative is $757/mgd. It should be noted that tertiary treatment and solids handling cost are not included as these costs would be the same for all alternatives, and thus, do not impact the alternatives comparison.

Table 3.3 Cost Estimate Alternative 2 - Pardee Satellite Plant Sewer System Study
City of Banning
Description WWTP
($million)
Satellite Plants
($million)
Total
($million)
Construction Cost + Contingency $21.5 $5.8 $27.3
Land Acquisition Cost $0.0 $0.7 $0.7
Mark-Ups $5.4 $1.5 $6.8
Total Capital Cost $26.8 $8.0 $34.8
Note: Tertiary treatment and the potential expansion of the solids handling facilities are not included. 1121
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3.2.3 Alternative 3 - One Package Plant for Loma Linda and Black Bench This alternative consists of wastewater treatment at two locations, the existing Banning WWTP site and one new Satellite Plant for the Loma Linda and Black Bench developments.

The existing WWTP would be expanded from its current capacity to the average DWF flow of 7.5 mgd, as listed in Table 3.1. Hence, the required expansion is less than the planned upgrade to the 7.8 mgd capacity identified in the Update of the Banning Wastewater Treatment Expansion Plan [2]. It is assumed that Stage 3 would be decreased from 2.8 mgd to 2.5 mgd to provide a total capacity of 7.5 mgd.

The Loma Linda and Black Bench satellite plant would be located near the intersection of Sunset Avenue and Wilson Street, where it would collect and treat the wastewater flows generated by these two developments. The projected average DWF for this satellite plant is 0.7 mgd.

A cost estimate of the treatment process upgrades and expansions required to increase the City’s treatment capacity to 8.2 mgd is summarized in Table 3.4. The unit cost used for these estimates are discussed in Section 5.

Based on a depreciation period of 30 years, 5 percent interest, and an average treatment capacity of 8.2 mgd, the overall unit treatment cost of this alternative is $810/mgd. It should be noted that tertiary treatment and solids handling costs are not included as these costs would be the same for all alternatives, and thus, do not impact the alternatives comparison.

Table 3.4 Cost Estimate Alternative 3 - LL & BB Satellite Plant Sewer System Study
City of Banning
Description WWTP
($million)
Satellite Plants
($million)
Total
($million)
Construction Cost $23.2 $6.4 $29.5
Land Acquisition Cost $0.0 $0.4 $0.4
Mark-Ups $5.8 $1.6 $7.4
Total Capital Cost $29.0 $8.3 $37.3
Note: Tertiary treatment and the potential expansion of the solids handling facilities are not included.

3.2.4 Alternative 4 - Two Package Plants
This alternative consists of wastewater treatment at three locations, the existing Banning WWTP site, one satellite plant for the Pardee development, and one new Satellite Plant for the Loma Linda and Black Bench developments.

The existing WWTP would be expanded from its current capacity to the average DWF of

6.1 mgd, as listed in Table 3.1. Hence, the required expansion is less than the planned upgrade to a capacity of 7.8 mgd as identified in the Update of the Banning Wastewater 1122
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Treatment Expansion Plan [2]. It is assumed that Stage 3 would be decreased from 2.8 mgd to 1.1 mgd to provide a total capacity of 6.1 mgd.

The Pardee Satellite plant would be located near the intersection of Eighth Street and Highland Springs Avenue, where it would collect and treat the wastewater flows generated by this new development. The projected average DWF this satellite plant is 1.4 mgd.

The Loma Linda and Black Bench Satellite plant would be located near the intersection of Sunset Avenue and Wilson Street, where it would collect and treat the wastewater flows generated by these two developments. The projected average DWF this satellite plant is

0.7 mgd.

A cost estimate of the treatment process upgrades and expansions required to increase the City’s treatment capacity to 8.2 mgd is summarized in Table 3.5. The unit costs used for these estimates are discussed in Section 5.

Based on a depreciation period of 30 years, 5 percent interest, and an average treatment capacity of 8.2 mgd, the overall unit treatment cost of this alternative is $912/mgd. It should be noted that tertiary treatment and solids handling costs are not included as these costs would be the same for all alternatives, and thus, do not impact the alternatives comparison.

Table 3.5 Cost Estimate Alternative 4 - Two Satellite Plants Sewer System Study
City of Banning
Description WWTP
($million)
Satellite Plants
($million)
Total
($million)
Construction Cost $20.5 $12.2 $32.7
Land Acquisition Cost $0.0 $1.1 $1.1
Mark-Ups $5.1 $3.0 $8.2
Total Capital Cost $25.7 $16.3 $42.0
Note: Tertiary treatment and the potential expansion of the solids handling facilities are not included.

3.2.5 Wastewater Treatment Recommendations
The comparison of treatment cost for the four alternatives is summarized in Table 3.6. As shown, the unit treatment costs are estimated to range from $650/mgd to $912/mgd.

Table 3.6 Alternatives Comparison - Treatment Cost Only Sewer System Study
City of Banning
Capital Cost Component Alt. 1
WWTP only
Alt.2
Pardee SP
Alt. 3
Loma Linda SP
Alt. 4
Two SPs
Total ($million) $29.9 $34.8 $37.3 $42.0
Annual Cost ($million/yr) $1.9 $2.3 $2.4 $2.7
Unit Cost ($/mgd) $650 $757 $810 $912
Note: Tertiary treatment and the potential expansion of the solids handling facilities are not included. 1123
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Based on the data presented in Table 3.6, it can be concluded that it is most cost-effective to treat all wastewater flows at one facility. However, this comparison is limited to the cost of wastewater treatment and do not include other considerations such as:
• Collection system improvements: Each alternative would require different collection system improvements to convey the wastewater to the designated treatment facilities. The evaluation of the collection system and the identification of the collection system improvements for each alternative is included in Section 6. • Solids Handling: All alternatives assume that the existing WWTP site has sufficient space to increase the solids handling capacity to 7.9, as solids handling at the satellite plants would be more costly, require additional land, and be subject to odor complaints. However, hauling of these solids would increase the City’s overall operational cost for alternatives with satellite plants (Alternatives 2-4) compared to the operational cost of centralized treatment at the Banning WWTP (Alternative 1). • Tertiary Treatment: The cost of tertiary treatment is not included in the cost estimates. However, the addition of tertiary treatment cost for alternatives with satellite plants (Alternatives 2-4) would be more costly than centralized tertiary treatment at the Banning WWTP (Alternative 1).
• Odor Control: The Banning WWTP is located in an area that is characterized by industrial land use types. The location of the satellite plants would be closer to the new residential developments, which could cause substantial odor complaints from residents.
• Land Acquisition and Siting: In addition to odor complaints, siting and acquisition of appropriate land for the satellite plants could be difficult, as these new developments are characterized by upscale housing and golf courses. The satellite plants would require a camouflage design and/or landscaping to blend in with the appearance of the community.

For a fair comparison basis of the alternatives, cost of both treatment and wastewater collection system improvements need to be considered. In addition, the cost difference in recycled water system improvements needs to be considered to provide a complete comparison basis. This cost comparison is presented in Section 6. 1124
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3.3 Wastewater Reclamation
The City must treat all wastewater flows to tertiary standards to implement the recycled water system as presented in the 2006 Recycled Water Master Plan [3]. The purpose of this system is to maximize the City’s recycled water use and reduce the need for additional potable water supplies to accommodate growth.

3.4 Sludge Management
Sludge produced at the Banning WWTP is currently dried at the wastewater treatment plant and hauled off site by a private contractor. However, the sludge handling capacity at the plant may not be sufficient in the future when the treatment of an additional wastewater flow will also result in an increase in sludge. It should be noted that this study does not include an evaluation of the City’s sludge handling capacity needs and options as this is beyond the scope of this project. It is recommended that the City conduct a study to determine the best sludge management process.
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4.0 PLANNING AND DESIGN CRITERIA
This section includes a discussion of the following planning and design criteria:
• Regulatory requirements
• Wastewater Flow Factors
• Wastewater Flow Components
• Pipeline Capacity Equations
• Flow Depth Criteria
• Pipeline Sizing
• Pump Capacity Criteria
• Cost Estimating Assumptions

4.1 Regulatory Requirements
Improvements to the sewer system should be designed to protect public health and safety in conformance with the guidelines and requirements of California Code of Regulations, Title 22, Division 4, Chapter 3, Article 1 through 10, Sections 60301 through 60355, the Riverside County Department of Health Services and the City of Banning. The City is also required to comply with all standards and conditions described in the Waste Discharge Requirements (WDR) which are requirements adopted by the California Regional Water Quality Control Board (RWQCB) Colorado River Basin Region. To provide recycled water, wastewater treatment also needs to meet Title 22 tertiary treatment standards.

4.2 Wastewater Flow Factors
For wastewater flow estimating purposes, the flow factors listed in Table 2.6 will be used.

4.3 Wastewater Design Flows
Historical monthly flows at the Wastewater Treatment Plant (WWTP) were reviewed and analyzed to determine monthly and seasonal fluctuations experienced by the sewer system.

The design flow criteria included developing peaking factors for estimating peak dry weather flows (PDWF). A flow monitoring program was completed as part of this study; however, the data collected did not include any rainfall event to identify the wet weather flow components.
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc The City’s wastewater flows consist of many components including the base wastewater flow (BWF), groundwater infiltration (GWI), and rainfall dependent inflow and infiltration (RDI). These flow components are described below.

4.3.1 Base Wastewater Flow
The BWF is the flow generated by the City's residential, commercial, and industrial customers. The flow has a diurnal pattern that varies by land use category. Typically, a residential diurnal has a two-peak pattern with the more pronounced peak following the wake-up hours of the day, and a less pronounced peak occurring in the evening.

Commercial and industrial patterns, though they vary depending on the type of use, typically have more consistent higher flow patterns during business hours, and lower flows at night. Furthermore, the diurnal flow pattern experienced during a weekend may vary from the diurnal flow experienced during a weekday. The City’s BWF is 2.8 mgd.

4.3.2 Groundwater Infiltration
Groundwater Infiltration (GWI), one of the components of I/I, is associated with extraneous water entering the sewer system through defects in pipes and manholes. This component is related to the condition of the sewer pipes, manholes, and groundwater levels.

Groundwater infiltration may occur throughout the year, although groundwater infiltration rates are typically higher in the late winter and early spring. Dry weather groundwater infiltration (or base infiltration) cannot easily be separated from BWF by flow measurement techniques. The GWI rate in systems with minor infiltration could range from 0 to 200 gpd/net acre.

4.3.3 Inflow and Infiltration
During the wet weather season, sewer flows are higher due to infiltration and inflow of extraneous groundwater and storm water that may enter the sewers through pipe and manhole defects or direct drainage connections during a storm event. Wet weather inflow is defined as a sharp rise in flow in direct response to a rainfall event. Wet weather infiltration is a slower response to the rainfall event, which builds up with time and continues even after rainfall has stopped. The amount of infiltration into the City’s system is related to the condition of the sewer pipes and manholes since infiltration enters through defects such as cracks and openings in pipes and manholes. I/I flows are also dependent upon groundwater levels and rainfall patterns. Peak I/I flows occur during major rainstorms and are related to the intensity and duration of rainfall.

Rainfall Dependent Infiltration and Inflow (RDI/I) are typically estimated by reviewing and examining flow components, and by conducting temporary or long-term flow monitoring programs. The flow monitoring conducted for this study did not include any rainfall events, and therefore, the RDI/I component could not be evaluated with City specific data. 1127
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc To estimate the amount of inflow and infiltration, historical daily flows received at the WWTP were evaluated. The average and peak daily flows received at the Banning WWTP are depicted on Figure 4.1. As shown on this figure, the peak daily flow is typically 1.5 to 2 times higher than the average daily flow, while peak flows can range up to 3 times the average daily flow. On dry days, the peak flow is typically between 4 and 5 mgd. During wet weather events, the peak flow ranges from 6 to 7 mgd. Hence, the difference between peak flows on dry and wet days is approximately 2 mgd, which indicates a significant amount of infiltration and inflow (I/I) in the City’s sewer system.

Based on this data, discussions with City staff, and review of typical values used in wastewater collection system design manuals, it was determined that the wet weather events in this study should be evaluated using an inflow and infiltration rate of 500 gpd/ac.

As this factor is an estimate, it is recommended that the City conduct additional long-term flow monitoring studies to determine the City’s infiltration factor and adjust the recommended projects presented in this study accordingly.

4.4 Wastewater Peaking Factors
Peaking factors are used to consider the variability of wastewater flow when evaluating system hydraulics and sizing sewer system facilities and pipelines. Peaking factors represent the ratio of a particular flow condition compared to the average dry weather flow (ADWF) and are typically obtained reviewing by historical data.

The peaking conditions that are of particular significance to hydraulic analysis of the sewer system include the Peak Dry Weather Flow (PDWF) and the Peak Wet Weather Flow (PWWF). A more detailed description of the various wastewater flow components is discussed below.

4.4.1 Average Dry Weather Flow
The average dry weather flow (ADWF) is the average flow that occurs on a daily basis during the dry weather season, with no evident reaction to rainfall. The ADWF includes the BWF generated by the City's residential, commercial, and industrial users, plus the dry weather GWI component. The importance of this component lies in its use as a basis for expressing other flow components by applying multipliers to the ADWF.

Review of the California Irrigation Management Information System (CIMIS) Riverside Station precipitation data indicated that June through August are the typical dry weather months. Historical flow records for this period shows that the average flow in these months is typically 10 percent lower than the average flow of the entire year. 1128
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0.01.02.03.04.05.06.07.08.0 7/1
7/12
7/23
8/3
8/14
8/25
9/5
9/16
9/27
10/8
10/19
10/30
11/10
11/21
12/2
12/13
12/24
1/4
1/15
1/26
2/6
2/17
2/28
3/11
3/22
4/2
4/13
4/24
5/5
5/16
5/27
6/7
6/18
6/29
7/10
7/21
Wastewater Flow (mgd)
and PDF/ADF Peaking Factor
Average Daily Flow (ADF) in mgdPeak Daily Flow (PDF) in mgdPDF/ADF Peaking Factor Average PWWF = 6.2 mgd
Average PDWF = 4.8 mgd
Maximum Wet Weather Flow Increase = 2.3 mgd
Average Wet Weather
Flow Increase = 1.4 mgd
Existing WWTP Capacity (3.6 mgd)
Average DWF = 2.8 mgd
Max. PWWF = 7.1 mgd
Figure 4.1 Historical Daily Plant Flows
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4.4.2 Peak Dry Weather Flow
The peak dry weather flow (PDWF) is the highest observed hourly flow that occurs during the dry weather season. The peak dry weather flow component is typically used for designing the capacity of sewer pipes.

4.4.3 Peak Wet Weather Flow
The peak wet weather flow (PWWF) is the highest observed hourly flow that occurs during the wet weather season. The PWWF component is typically used for designing the capacity of the sewer system while providing some acceptable allowance for surcharging. Unlike the ADWF analyses, the hydraulic analysis during wet weather conditions (or PWWF) allows surcharging with the hydraulic grade line rising up to a foot below the manhole rim. Flows that exceeded that level are considered causing a deficiency.

During significant storm events, wet weather peaking factors can be as much as 5 to 10 times higher than the ADF. However, the WEF Manual of Practice FD-6 and ASCE Manual No. 62 suggest typical PWWF to ADWF ratios ranging between 3 and 4, with higher values indicating pronounced infiltration and inflows.

4.4.4 Recommended Peaking Factors
The peaking factors used in this study are summarized in Table 4.1. The PWWF with 500 gpd/ac to account for I/I governs the sizing of the collection system. (1) Per Figure 4.1: PDWF/ADWF = 4.8/2.8 = 1.7
(2) Per Figure 4.1: PWWF/ADWF = 7.1/2.8 = 2.5
(3) Per Figure 4.1: Maximum Flow Increase = 2.3 mgd. I/I = 2.6 mgd/4,900 acres (per Table 2.1) = 470 gpd/ac. This is rounded to 500 gpd/ac.

4.5 Pipeline Capacity Equations
Sewer pipe capacities are dependent on many factors. These include roughness of the pipe, the chosen maximum allowable depth of flow, and limiting velocity and slope. The Continuity equation and the Manning equation for steady-state flow are used for gravity sewer hydraulic calculations:

Table 4.1 Wastewater Peaking Factors
Sewer System Study
City of Banning
Flow Condition Factor
PDWF(1) 1.7 * ADWF
PWWF - at WWTP(2) 2.5 * ADWF
PWWF - in Collection System(3) PDWF + 500 gpd/ac (I/I)
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Continuity Equation: Q = V * A
Where: Q = peak flow (cfs)
V = velocity (fps)
A = cross-sectional area of pipe (ft2)
Manning Equation: V = (1.486 R 2/3 S1/2)/n
Where: V = velocity (fps)
n = Manning's coefficient of friction
R = hydraulic radius or area divided by wetted perimeter (ft) S = slope of pipe (feet per foot)

4.5.1 Manning Coefficient (n)
The Manning coefficient 'n' is a friction coefficient and varies with respect to pipe material, size of pipe, depth of flow, smoothness of joints, root intrusion, and other factors. For sewer pipes, the Manning coefficient typically ranges between 0.011 and 0.017, with 0.013 being a representative value used for system master planning purposes. For this project, 0.013 will be used as the default value.

4.5.2 Velocity
A standard design practice for gravity sewer design is to maintain a minimum velocity of 2 fps when a sewer pipeline is half-full. At this velocity, the sewer flow will typically provide self-cleaning or scouring of sewage solids that have settled in pipes during low flow conditions. Due to the hydraulics of a circular conduit, velocity of half-full flow in pipes approaches the velocity of nearly full flow in pipes. All new pipelines should be designed such that the scouring velocity of 2 fps is achieved on a daily basis. Thus, new sewer pipelines should be designed with a minimum slope to meet this velocity.

Force mains should be sized to provide a pipeline velocity of between 2.0 to 6.5 fps.

4.5.3 Slopes
The minimum recommended pipeline slopes are listed in Table 4.2. The slopes shown in Table 4.2 are recommended for pipes with peak flows close to design capacity. Steeper slopes may be required for pipelines with lower peak flows. In any case, slopes should not be steep enough to allow for velocities that exceed 10 fps. 1131
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Source: 1994 City of Banning Sewer Maser Plan [1].

Note: All slopes are based on pipelines flowing half full (d/D = 0.5) at 2 fps.

4.5.4 Flow Depth Criteria
When designing sewer pipelines, it is common practice to adopt variable flow depth criteria for various pipe sizes. This criterion is expressed as a maximum depth of flow to pipe diameter ratio (d/D). Design d/D ratios typically range from 0.5 to 0.92, with the lower values typically used for smaller pipes since smaller pipes may experience flow peaks greater than planned or may experience blockages from debris, paper, or rags. A design d/D ratio of 0.75 is typically used for designing new gravity sewer pipes in the City.

Utilizing a d/D ratio of 0.75 for analysis purposes may lead to premature or unnecessary replacement of existing pipelines. Therefore, a d/D ratio of 0.92 will be utilized to evaluate City’s existing trunk system, while a d/D ratio of 0.75 will be utilized for designing the future trunk system and evaluating existing pipelines equal or smaller than 12-inch in diameter.

The criteria used in this study to determine whether pipes have sufficient conveyance capacity are listed in Table 4.3.

To minimize the settlement of sewage solids, it is standard practice in the design of gravity sewers to specify that a minimum velocity of 2 feet per second (fps) be maintained when the pipeline is at design capacity. At this velocity, the sewer flow will typically provide selfTable 4.2 Minimum Recommended Slopes for Circular Gravity Pipes Sewer System Study
City of Banning
Pipe Diameter
(in)
Minimum Slope
(ft/ft)
Pipe Velocity
(fps)
8 0.0040 2.19
10 0.0030 2.20
12 0.0024 2.22
15 0.0017 2.17
18 0.0014 2.22
21 0.0011 2.18
24 0.0010 2.28
Table 4.3 Maximum Depth to Pipe Diameter Ratio
Sewer System Study
City of Banning
Pipe Diameter (in) Maximum d/D Ratio (during PWWF)
12 and smaller - existing pipelines 0.75
15 or larger - existing pipelines 0.92
15 or larger - new pipelines 0.75
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc cleaning for the pipe. Due to hydraulics of a circular conduit, velocity of half-full flow in pipes approaches the velocity of nearly full flow in pipes.

4.5.5 Pipeline Sizing
All new gravity sewer pipelines should be sized to meet the d/D ratio and velocity criteria as mentioned above. Pipeline sizes are based on the City’s standard diameters as listed in Table 4.4. As shown in Table 4.3, the smallest pipeline considered is 8-inches in diameter.

For locations where pipeline sizes change, and smaller sewer mains join a larger diameter sewer main, the invert of the larger sewer will be lowered sufficiently to maintain the same energy gradient. An approximate method for securing these results is to place the 0.8 depth point of both sewers at the same elevation. For master planning purposes, and in the absence of field data, sewer crowns will be matched at the manholes.

Table 4.4 Standard Pipeline Sizes
Sewer System Study
City of Banning
Pipe Diameter Type Size
8 inches Standard Size
10 inches Standard Size
12 inches Standard Size
15 inches Standard Size
18 inches Standard Size
21 inches Standard Size
24 inches Standard Size
30 inches Non-standard Size(1)
33 inches Standard Size
36 inches Standard Size
(1) As the City has 30-inch diameter trunk mains, this size is proposed for future recommendations. However, the comparable standard size would be 31-inch diameter.

4.6 Pumping Capacity Criteria
Lift stations consist of pumps used to raise wastewater flows to higher elevation to continue gravity flow at reasonable pipe slopes and depths. Pump capacities should be sufficient to pump peak flow rates, such as the PWWF, experienced in the sewer system. Pumps with capacities less than anticipated peak flow rates are considered deficient.

Lift stations should also be able to handle the PWWF with the largest unit out of service to allow temporary outage of pumps and repairs. Standby power is recommended for all lift 1133
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc stations. These criteria do not apply to the Caltrans LS, as the wet well at this LS can accommodate a long duration of wastewater flows.

4.7 Cost Estimating Assumptions

4.7.1 Cost Index
Cost estimates presented in this study are based on the current engineering and news record (ENR) cost index for the Los Angeles metropolitan area of 8,547 published in June, 2006. Future adjustments of cost estimates presented in this report can be estimated by increasing the estimated capital cost by the ratio of the future ENR to 8,547.

4.7.2 Unit Cost
The cost estimates presented in this report are based on the assumptions and unit construction costs listed in Table 4.5.

Table 4.5 Cost Estimating Assumptions
Sewer System Study
City of Banning
Category Description Assumption
Pipelines Diameter (inches) Unit Cost ($/lineal ft)
8 $ 180
10 $ 196
12 $ 201
15 $ 223
18 $ 242
21 $ 290
24 $ 320
27 $ 408
30 $ 491
33 $ 539
36 $ 588
Lift Stations Capacity (hp) Unit Cost ($/hp)
<50 $ 10,000
50-100 $ 7,500
Land Acquisition Area (acres) Unit Cost ($/acre)
All $350,000
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Table 4.5 Cost Estimating Assumptions (Continued)
Sewer System Study
City of Banning
Category Description Assumption
Other Items Category Construction Cost
Abandonment of LS $100,000 (lump sum)
Wastewater Treatment $3,200,000 ($/mgd)
Tertiary treatment $1,000,000 ($/mgd)
Mark-ups Category Mark-up (%)
Contingency 30% of Capital Cost
Engineering, Design and
Construction Mgmt
15% of Capital Cost +
Contingency
Legal and Administration 10% of Capital Cost +
Contingency Amortization Category Unit
Depreciation period 30 years
Interest 5 %
Land acquisition cost estimates are included for lift stations and satellite wastewater treatment plants. Lift stations are assumed to require 0.5 acres per facility, while the Pardee and Loma Linda satellite plants are assumed to require 2.0 and 1.0 acres, respectively. Capital costs do not include pipeline corridor purchases or easement costs because it was assumed that public ROW will be utilized wherever possible. 1135
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5.0 MODEL DEVELOPMENT

5.1 Model Methodology
The sewer model was created using the City’s preliminary geographical information system (GIS) that is being prepared for the City during the development of this study (2005-2006).

All sewer gravity mains and force mains were imported in H2OMAP Sewer Suite Version 6.

After the sewer pipelines were imported, model junctions were automatically created for all pipeline begin and end points to connect all sewer pipelines according to the connectivity presented in the City’s GIS.

The pipeline diameters, manhole diameters, invert elevations, slope, pipeline material, manhole diameter, rim elevations, inlet elevations, and manhole depth were imported from the GIS into the model database, where available. The number of GIS records and the available data is summarized in Table 5.1.

Table 5.1 Model and GIS summary
Sewer System Study
City of Banning
System
Component
No. of Records
Total
No. of Records
with data
Percent of
Records with Data
Pipelines
Diameter 2,314 2,307 100%
Length 2,314 1,745 75%
Inlet Elevation 2,314 1,725 75%
Outlet Elevation 2,314 1,802 78%
Slope(1) 2,314 1,742 75%
Material 2,314 2,306 100%
Manholes
Diameter 1,726 1,517 88%
Rim Elevation 1,726 1,489 86%
Inlet Elevation 1,726 1,468 85%
Depth 1,726 1,470 85%
(1) Slopes with values equal or smaller than 1.000000 are considered not valid.

As shown in Table 5.1, approximately 25 percent of the pipeline data related to the pipeline slope (length, invert elevations, and slope) was missing in the GIS. Assumptions were made to complete the model pipeline database. Additional database fields were added to keep track of which pipelines include data that was input manually, obtained from as-built 1136
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc drawings, or obtained from adjacent pipelines. The missing inverts were populated using one of the following methodologies:
• Use of invert from adjacent (upstream or downstream) pipeline; • Use of depth and ground elevation of manholes. The manhole depth was obtained from City as-built drawings, where available and ground elevation of manholes were allocated from the City’s 5-ft interval ground elevation contours; • Use of ground elevation of manholes only. For manholes located on missing asbuilt drawings, a depth of 10 foot was assumed as initial value to calculate the invert elevation.
• Use of linear interpolation of inverts from adjacent pipelines. • Use of the GIS slope values to calculate the upstream and downstream inverts.

After the pipeline network database was completely populated, the lift stations were input with the system controls, and connected to the sewer force mains. The pump curves of the lift stations were input based on manufacturer’s data, where available, and information provided by City staff during field visits.

Once the model included all facilities, the sewer loads were allocated to all manholes to run the model and evaluate the pipeline profiles. Evaluation of these profile drawings showed that the City’s GIS includes multiple vertical datums. As the research of datums and adjustment of GIS data is beyond the scope of this project, a number of “drop manholes” were created, to allow downstream flow throughout the sewer system, without the modification of a large number of GIS values.

It is recommended that the City update the model database with the final GIS data, once all GIS data is verified. The different vertical datums should be populated so that a common datum can be chosen and used to calculate the corrected elevations. If needed, the City should conduct surveys in the areas where pipeline profiles do not follow a continuous downhill pattern.

5.2 Collection System
The City’s collection system consists of approximately 108 miles of 4-inch through 30 inch diameter sewers and includes four sewage lift stations and associated force mains as shown in Figure 5.1. All sewer pipelines flow by gravity with the exception of the force main. The “backbone” of the system consists of the trunk sewers, generally 15-inches in diameter and larger, that convey the collected wastewater flows to the City’s WWTP.

The sewer system pipeline characteristics that are included in the model are summarized in Table 5.2. As listed in Table 5.2, the sewer model includes 115 miles of sewer mains, ranging from 4-inch to 30-inch in diameter. It should be noted that the model includes both 1137
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc existing sewer mains and some future sewer main expansions; hence, the total length of model pipelines exceeds the existing sewer main length.

Table 5.2 Model Pipeline Characteristics
Sewer System Study
City of Banning
Pipeline Diameter
(in)
Gravity Mains
(mi)
Force Mains
(mi)
Total Mains
(mi)
4 0.1 1.0 1.1
6 6.4 0.4 6.8
8 85.0 0.0 85.0
10 1.0 0.2 1.2
12 8.6 0.0 8.6
15 8.6 0.0 8.6
18 1.2 0.0 1.2
21 3.3 0.0 3.3
24 0.1 0.0 0.1
30 0.4 0.0 0.4
Total 114.6 0.6 115.2
Note: Total lengths include all existing and some future sewer mains that are part of the sewer model.

5.2.1 Gravity System
The majority of the City’s collection system is a gravity flow system consists of 6-inch and 8- inch diameter sewer mains. The most common sewer main material is VCP, however other materials such as Asbestos Cement and PVC pipelines are also present in the City’s collections system. The most common pipeline size is 8-inches, representing to approximately 75 percent of the sewer collection system.

5.2.2 Pressurized System
While the majority of the City’s collection system flows by gravity, a small portion (0.5 percent) of the City’s sewer collection system is pressurized. The discharge piping from each of the lift stations is under pressure from the lift station pumps to the highest point in the pump discharge piping. Throughout the entire sewer system, approximately 0.6 miles of force mains exists and ranges from 4 inches to 10 inches in diameter. The majority of the force mains are CI and PVC pipe.

5.2.3 Lift Stations
The City’s sewer collection system includes four active lift stations. In addition, two lift stations have been abandoned. The characteristics of the active lift stations are summarized in Table 5.3, while their locations are shown on Figure 5.1. 1138
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5.2.4 Wastewater Treatment Plants
The wastewater plant, located near the intersection of Scott Street and Charles Street, is modeled as a system outlet with an elevation of 2100 ft msl. All sewer flows in the model will drain to this outlet, with the exception of scenarios that include satellite plants.

5.3 Wastewater Load Allocation
To distribute the wastewater flow in the model, the collection system was evaluated and 23 drainage basins, or subbasins were identified. These subbasins are shown on Figure 5.2.

The estimated wastewater flow within each subbasin was evenly distributed among the number of manholes that fall within each subbassin. Model nodes connected to lift stations and force mains were excluded from wastewater flow allocation.

The total wastewater flow of each subbasin was estimated based on a combination of the area of each land use type, the equivalent residential units (ERUs), and the estimated percent development of each subbasin. An average wastewater flow rate of 153 gpd/ERU (2.6 ppl/du * 59 gpd/cap) was based on the calibration of the actual wastewater flows, population, and land use mix in the City.

For example, the average wastewater flow for a 25 acre subbasin that consists of 15 acres of MDR, 5 acres of HDR, and 5 acres of commercial land use, and that is approximately 80 percent developed, is estimated as follows:

MDR: 80 % * 15 acres * 4 ERU/ac * 153 gpd/ERU = 7,344 gpd LDR: 80 % * 5 acres * 3 ERU/ac * 153 gpd/ERU = 1,836 gpd COM: 80% * 5 acres * 10 ERU/ac * 153 gpd/ERU = 6,120 gpd Total: 15,300 gpd or 10.63 gpm
Table 5.3 Lift Station Summary
Sewer System Study
City of Banning
Name Intersection Location No. of
Pumps
Design Flow
(gpm)
Design
Head (ft)
Sun Lakes LS No. 1 Southwest of Riviera Av.
and Crenshaw Cir. 2 210 100
Sun Lakes LS No. 2 South of Breckenridge
Ave. and Myrtle Beach Dr. 2 135 60
Westward LS 1000 ft west of Sunset
Ave. and Westward Ave. 3 1200 (2x) 900 (1x) 40
Caltrans LS 1400 ft east of Hathaway
St. and Westward Ave. 1 180 50
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc If this subbasin contains 20 manholes, then the average sewer load per manhole is 0.531 gpm under ADWF conditions. This sewer load allocation method was used for existing conditions and build out ADWF conditions.

5.3.1 Existing System
The existing average day wastewater flow is approximately 2.8 mgd. The percent build out of the 23 subbasins under existing conditions was estimated using the aerial coverage of the City as presented in Figure 2.1. Subbasins 1, 6, 7, 14, and 23 are used for future sewer loads only, and therefore the percent developed of these subbasins was set as zero. The percent developed of the remaining subbasins was estimated to range from 10 percent to 100 percent. The number of manholes of the remaining subbasins ranged from 5 to 385 per subbasin. The total wastewater flow of 1,967 gpm (2.83 mgd) was distributed over 1911 manholes that are part of the existing system model scenario, with flows ranging from

0.32 to 4.94 gpm per manhole.

5.3.2 Model Calibration
The average day wastewater flow during the week of model calibration (July 10 - July 16) was 2.4 mgd. The wastewater flows in the model were allocated by applying a uniform scaling factor of 0.863 to the existing system sewer flows.

5.3.3 Year 2030
The average day wastewater flow for year 2030 is approximately 8.2 mgd. The percent build out of the 23 subbasins for year 2030 was adjusted to match the projected wastewater flows. Subbasins 1, 6, 7, 14, and 23 represent the five new development areas, and are all assumed to be 100 percent developed by year 2030. The percent developed of the remaining subbasins was estimated to range from 90 percent to 100 percent. The number of manholes of the 23 subbasins ranged from 1 to 385 per subbasin. The total wastewater flow of 5,694 gpm (8.2 mgd) was distributed over 1924 manholes that are part of the year 2030 model scenario, with flows ranging from 0.9 to 285 gpm per manhole.

5.4 Model Calibration
The Banning sewer model was calibrated to establish a level of confidence in the flows that it simulates. The calibrated model serves as an established benchmark for further analysis and evaluation.

Calibration is complicated by the fact that some data are known and unchanging; some are variable over time, while others are estimated. Pipe and manhole information such as diameter, lengths, slopes, and location are typically known and can usually be verified with as-built drawings of the City’s sewer collection system. Flow data obtained from the WWTP records and from flow-monitoring vary with time of day, season, and total number of 1142
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc customers. The City’s model was calibrated for the flows recorded during the temporary flow-monitoring conducted in July 2006.

5.4.1 Flow Monitoring
The locations of the five flow monitors used to collect calibration data were selected such that portions of the City’s collection system could be isolated for model calibration purposes. The locations are depicted on Figure 5.2 and described in Table 5.4. As shown on this figure, all flow monitors were installed south of Interstate 10 to isolate portions of the City’s sewer collection system connected to large diameter trunk lines that convey wastewater in an easterly direction to the Banning WWTP.

The flow monitoring results are summarized in Table 5.5, while details are included in Appendix C. The data presented in Table 5.5, which is also used for the model calibration, is based on the average values in the week of July 10 through July 16. The monitoring data for the previous week were disregarded due to a malfunctioning flow meter.

Table 5.4 Flow Monitoring Locations
Sewer System Study
City of Banning
Flow
Meter ID Location Nearest Intersection Pipe Size
(inches)
No. 1 Northern inlet to the WWTP. Scott St. and Charles St. 18 No. 2 Southern inlet to the WWTP. Scott St. and Charles St. 30 No. 3 Northern inlet into 21” main along
Westward Av. Westward Av. and 4th St. 15
No. 4 Western inlet into 21” main along
Westward Av. Westward Av. and 22nd St. 21
No. 5 Northern inlet into 21” main along
Westward Av. Westward Av. and 22nd St. 12
Table 5.5 Flow Monitoring Data Summary
Sewer System Study
City of Banning
Flow
Meter ID
Max Flow
(gpm)
Min Flow
(gpm)
Average Flow
(gpm)
Peak/Ave
Ratio
No. 1 1,013 0 416 2.4
No. 2 4,582 487 1,281 3.6
No. 3 145 35 83 1.7
No. 4 1,342 331 788 1.7
No. 5 275 12 126 2.2
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5.4.2 Calibration Methodology
The model was calibrated by comparing the average flows of the field data with the average flows predicted by the model over a 24-hour period. To produce stable wastewater flows at the WWTP inlet, the model was run for 3 days or 72 hours to account for the affect of attenuation. The average flow of the last 24-hour of the model run was calculated for each of the flow monitoring locations and compared with the field results. The following adjustments were made to match the field and model results:
• Adjustments of percent build out for each subbasin
• Adjustments of initial levels in the wet wells
• Adjustments of initial status of the lift station pump units • Adjustments of lift station pump operating points
• Input of flow split ratios at critical manholes with multiple outlets

5.4.3 Calibration Results
The model calibration results are summarized in Table 5.6. As shown in this table, the predicted average flows in the model are within five (5) percent of the field data for four (4) of the monitoring locations, while one location shows a difference of 21 percent. It should be noted that the accuracy of the field measurements is likely not more than 10 percent.

Hence, these results are satisfactory, and the model is considered calibrated.

Table 5.6 Model Calibration Results
Sewer System Study
City of Banning
Flow Meter
ID
Average Flow
in Field
(gpm)
Average Flow
in Model
(gpm)
Average Flow
Difference
(gpm)
Average Flow
Difference
(%)
No. 1 416 423 7 2%
No. 2 1,281 1,215 -67 -5%
No. 3 83 85 2 3%
No. 4 788 620 -168 -21%
No. 5 126 120 -7 -5%
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6.0 COLLECTION SYSTEM ANALYSIS

6.1 Evaluation Methodology
The calibrated hydraulic sewer model was used for the evaluation of the City’s collection system. The following scenarios were evaluated:
• Existing System under Peak Dry Weather Flow (PDWF) conditions • Existing System under Peak Wet Weather Flow (PWWF) conditions • Future System under Peak Dry Weather Flow (PDWF) conditions • Future System under Peak Wet Weather Flow (PWWF) conditions The future system is defined as the collection system with extensions to serve the five new developments and the projected wastewater flows of year 2030. The future system also includes recommended improvements to address the existing system deficiencies, where applicable.

The PWWF conditions are modeled by adding a second wastewater flow to the PDWF for all model nodes to account for an average I/I of 500 gpd/acre [4], which corresponds to approximately 1 percent inflow of a 2-inch rainfall event in 24 hours. As discussed in Section 4, this amount of I/I is consistent with the City’s historical wastewater flow increase during wet weather events.

The hydraulic model is ran for a 48-hour (2-day) extended period simulation to allow sufficient time to balance the wastewater flows throughout the collection system for the affect of flow attenuation. The model results are evaluated for the peak hours of the second day, which mostly occurs between 7 and 10 am (simulation hours 31 through 34), depending on the proximity to the WWTP.

The predicted values of d/D are used to identify pipelines where the depth in existing pipelines exceeds the available capacity, or where d/D is equal or greater than 0.92 (flowing full). New pipelines are sized such that d/D does not exceed 0.75. These and other evaluation criteria are described in more detail in Section 5.

6.2 Existing Collection System Analysis

6.2.1 Evaluation Conditions
The existing system model is run for two flow conditions, PDFW and PWWF. The average flow under PDWF conditions is 2.83 mgd. Based on a combined drainage area of the existing system subbasins (Figure 4.2) of 6,700 acres and an average I/I of 500 gpd/ac, the 1148
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc total wet weather inflow is estimated to be 3.3 mgd. Hence, the PWWF modeled for the existing system evaluation is 6.2 mgd.

6.2.2 System Deficiencies
The deficiencies identified with the existing sewer collection system are summarized in Table 6.1. As shown in this table, the only system deficiencies occur during wet weather conditions. The ID’s of these deficiencies are indicated with a prefix EWD (Existing Wet Weather Deficiency). The locations of these deficiencies are shown on Figure 6.1. (1) Design Flow or Capacity is based on a design velocity of 2 fps. (2) This diameter needs to be verified, as the upstream pipeline is 12-inch in diameter. This deficiency would not exist, if this pipeline diameter is also 12-inches.

6.2.3 Recommendations
The recommended system improvements that address the identified deficiencies are summarized in Table 6.2 and are depicted on Figure 6.2. The ID’s of the recommended projects for existing system improvements are indicated with a prefix EP (Existing Project).

Table 6.1 Existing System Deficiencies
Sewer System Study
City of Banning
Deficie
ncy ID
Model
Pipe
ID
Pipeline Location
Pipe
Length
(ft)
Pipe
Size
(in)
Design
Flow(1)
(gpm)
Peak
Flow
(gpm)
d/D
ratio
Peak Dry Weather Flow Conditions
n/a n/a n/a n/a n/a n/a n/a n/a
Peak Wet Weather Flow Conditions
EWD-1 1558
Ramsey Street between
Omar Street and 15"
trunkline.
80 8 310 552 >1
EWD-2 2019 From Wesley St. to the
WWTP inlet 870 30 4,410 4,221 >1
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc As shown in Table 6.2, the deficient pipelines can either be paralleled or replaced with a larger pipeline. Both diameters are indicated in Table 6.2. It is recommended that the City conduct condition assessments for the pipeline segments that are identified as deficient to decide which method is most suitable for the project location. The cost estimates presented in the CIP are all typically based on pipeline replacements, as this provides a more conservative estimate for planning.
(1) Replacement of existing 30-inch diameter trunk line is not recommended. This main is assumed to remain in place in the CIP.
(2) The existing diameter (8”) needs to be verified, as the upstream pipeline is 12-inch in diameter. This deficiency would not exist, if this pipeline diameter is also 12-inches.

It should be noted that one of the recommended projects, project EP-2, is a relatively short pipeline improvement, which typically would not be included in a sewer system study. This improvement is to avoid surcharging near the intersection of Ramsey Street and Omar Street, just north of Interstate 10, where flow from Omar Street merges into the 15-inch diameter trunk sewer that flows to the Westward Lift Station. If temporary surcharging is acceptable, this improvement could be given a lower priority and installed later than other system improvements. It is recommended that this deficiency be confirmed in the field during wet weather flows.

6.3 Future Collection System Analysis

6.3.1 Evaluation Conditions
The existing system model is run for two future flow conditions of year 2030, PDFW and PWWF. The average future flow under PDWF conditions is projected to be 8.2 mgd.

Based on a combined drainage area of the future system subbasins (Figure 4.2) of 10,900 acres and an average I/I of 500 gpd/ac, the total wet weather inflow is estimated to be 5.4 mgd. Hence, the PWWF modeled for the future system evaluation is 13.6 mgd.

The future model includes the recommended pipelines that are needed to address the existing system deficiencies as listed in Table 6.2. In addition, pipelines required to collect the wastewater flows from the new developments were added to the model. Specific plans Table 6.2 Existing System Recommendations
Sewer System Study
City of Banning
Project
ID Pipeline Location
Pipeline
Length
(ft)
Parallel
Pipeline Size
(in)
Replacement
Pipeline Size
(in)
EP-1 Wesley St. between Hathaway
St. and WWTP inlet 1,600 21-inch 36-inch(1)
EP-2
Ramsey St. between Omar St.
and 15-inch trunk line on
Ramsey
100 8-inch(2) 12-inch(2)
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc were used, where available, to input the proposed pipeline alignments and diameter. The model was used to confirm these sizes and evaluate alternate routes.

6.3.2 System Deficiencies
The deficiencies identified with the future sewer collection system are summarized in Table

6.3 and Table 6.4. As shown in these tables, the majority of the system deficiencies occur during wet weather conditions. The ID’s of the deficiencies are indicated with a prefix FDD (Future Dry Weather Deficiency) or a prefix FWD (Future Wet Weather Deficiency). The locations of these deficiencies are shown on Figure 6.1.

6.3.3 Recommendations
The recommended system improvements that address the identified deficiencies are summarized in Table 6.5 and are depicted on Figure 6.2. The ID’s of the recommended projects for future system improvements are indicated with a prefix FP (Future Project).

As shown in Table 6.2, the deficient pipelines can either be paralleled or replaced with a larger pipeline. Both diameters are indicated in Table 6.4. It is recommended that the City conduct condition assessments for the pipeline segments that are identified as deficient to decide which method is most suitable for the project location. The cost estimates presented in the CIP are all typically based on pipeline replacements, as this provides a more conservative estimate for planning.

Table 6.5 also lists a number of projects that were considered as part of this sewer system study but are not included in the proposed CIP. Based on discussions with City staff it was determined that these projects, (FP-1, FP-2, and FP-4) are cost prohibitive and not desired due to the crossing with the Interstate 10, the railroad, the three streams and the related environmental issues. These projects are also depicted in grey in Figure 6.2. These projects were replaced with projects FP-14 and FP-15.

As listed in Table 6.2, it is recommended that Westward LS be abandoned. This recommendation was based on discussions with City staff. This lift station can be bypassed with the new gravity main (FP-3) along Crossroads Parkway between Sunlakes Boulevard and the new sewer main along Bobcat Road (FP-12).

To serve the new developments east of the WWTP, some gravity mains (FP-18 and FP19), a new lift station (FP-17) and a force main (FP-20) are recommended. These facilities are sized to convey up to 90 percent of the development in tributary areas 21 and 22 (see Figure 5.2), which includes the area north of Interstate 15 and east of Hathaway Street.

The projected ADWF for the lift station is approximately 450 gpm, while the projected PWWF is estimated at 680 gpm. When this station is sized for wet weather conditions with a lift of 150 feet, the capacity of this 1.0 mgd station is about 40 hp. 1155
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Table 6.3 Future System Deficiencies - Peak Dry Weather Conditions Sewer System Study City of Banning
Deficiency
ID
Model
Pipe
ID
Pipeline Location
Pipeline
Length
(ft)
Pipeline
Size
(in)
Design
Flow(1)
(gpm)
Peak
Flow
(gpm)
d/D
ratio
FDD-1 2839 Highland Home Rd. between Springs View Dr. and Ramsey St. 334 12 710 1,476 >1.0 1522 Highland Home Rd. between Springs View Dr. and Ramsey St. 10 12 710 1,482 >1.0 FDD-2 1228 Highland Home Rd. between Springs View Dr. and Ramsey St. 351 15 1,100 2,403 >1.0 FDD-3 1220 Transmission Main to Westward LS from Ramsey Street & I-10 396 15 1,100 2,295 >1.0 1221 Transmission Main to Westward LS from Ramsey Street & I-10 396 15 1,100 2,292 >1.0 1544 Transmission Main to Westward LS from Ramsey Street & I-10 348 15 1,100 2,290 >1.0 1545 Transmission Main to Westward LS from Ramsey Street & I-10 332 15 1,100 2,287 >1.0 1547 Transmission Main to Westward LS from Ramsey Street & I-10 196 15 1,100 2,283 >1.0 FDD-4 3362 Hathaway St. between Barbour St. and Charles St. 665 8 310 946 >1.0 3377 Hathaway St. between Barbour St. and Charles St. 703 8 310 936 >1.0 FDD-5 3394 Hathaway St. between I-10 and Lincoln St. 690 8 310 875 >1.0 FDD-6 2049 From Porter St (700 ft east of Hathaway St) to Wesley St. 544 30 4,410 6,226 >1.0 2050 From Porter St (700 ft east of Hathaway St) to Wesley St. 138 30 4,410 6,215 >1.0 FDD-7 2019 From Wesley St. to the WWTP inlet 424 30 4,410 6,216 >1.0 2020 From Wesley St. to the WWTP inlet 451 30 4,410 6,204 >1.0 2021 From Wesley St. to the WWTP inlet 456 30 4,410 6,216 >1.0 2051 From Wesley St. to the WWTP inlet 228 30 4,410 6,219 >1.0 FDD-8 3435 Sunset Av. between Jacinto View Rd. and Ramsey St. 709 8 310 736 >1.0 (1) Design Flow or Capacity is based on a design velocity of 2 fps. 1156
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Table 6.4 Future System Deficiencies - Peak Wet Weather Conditions Sewer System Study City of Banning
Deficiency ID Model Pipe ID Pipeline Location Pipeline Length (ft) Pipeline Size (in) Design Flow(1) (gpm) Peak Flow (gpm) d/D ratio FWD-1 1250 Between I-10 and Westward LS, N/O Westward Ave. 20 15 1,100 3,187 >1.0 1254 Between I-10 and Westward LS, N/O Westward Ave. 36 15 1,100 4,287 >1.0 FWD-2 1546 Transmission Main to Westward LS from Ramsey Street & I-10 489 15 1,100 3,164 >1.0 FWD-3 3363 Hathaway St. between I-10 and Barbour St. 718 8 310 1,066 >1.0 FWD-4 2047 From Porter St (700 ft east of Hathaway St) to Wesley St. 172 24 2,820 8,161 >1.0 2048 From Porter St (700 ft east of Hathaway St) to Wesley St. 433 24 2,820 8,164 >1.0 FWD-5 1165 Sunset Av. between Wilson St. and W. George St. 448 8 310 1,236 >1.0 FWD-6 112 Sunset Av. between Nicolet St. and Jacinto View Rd. 432 8 310 1,291 >1.0 FWD-7 2032 Porter St between Old Banning Iddylwild Rd. and Hargrave St. 374 21 2,160 6,696 >1.0 FWD-8 2036 Porter St between Old Banning Iddylwild Rd. and Hargrave St. 411 21 2,160 6,727 >1.0 2037 Porter St between Old Banning Iddylwild Rd. and Hargrave St. 411 21 2,160 6,723 >1.0 FWD-9 2624 Highland Home Rd. between Wilson St. and Spring View Dr. 173 12 710 1,937 >1.0 FWD-10 1553 Ramsey St. between Highland Home Rd. and Omar St. 346 12 710 2,345 >1.0 1554 Ramsey St. between Highland Home Rd. and Omar St. 205 12 710 2,335 >1.0 1555 Ramsey St. between Highland Home Rd. and Omar St. 346 12 710 2,350 >1.0 1556 Ramsey St. between Highland Home Rd. and Omar St. 165 15 1,100 2,494 >1.0 1573 Ramsey St. between Highland Home Rd. and Omar St. 346 12 710 2,339 >1.0 FWD-11 1241 Westward Ave. between Highland Home Rd. and Westward LS 389 12 710 1,115 >1.0 1249 Westward Ave. between Highland Home Rd. and Westward LS 381 12 710 1,114 >1.0 FWD-12 1240 Westward Ave. between Highland Home Rd. and Westward LS 396 12 710 1,104 >1.0 1244 Westward Ave. between Highland Home Rd. and Westward LS 346 12 710 1,105 >1.0 1245 Westward Ave. between Highland Home Rd. and Westward LS 346 12 710 1,107 >1.0 1246 Westward Ave. between Highland Home Rd. and Westward LS 356 12 710 1,108 >1.0 1247 Westward Ave. between Highland Home Rd. and Westward LS 36 12 710 1,109 >1.0 FWD-13 2058 22nd St. between Jefferson St. and Westward Ave. 390 12 710 1,695 >1.0 FWD-14 1981 Westward Ave. between 22nd St. and 18th St. 219 21 2,160 4,792 >1.0 FWD-15 1995 Westward Ave. between 22nd St. and 18th St. 390 18 1,590 4,821 >1.0 FWD-16 1558 Inters. of Ramsey St. and Omar St. N/O 15" on Ramsey St. 80 8 310 722 >1.0 (1) Design Flow or Capacity is based on a design velocity of 2 fps. 1157
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc (1) These projects are replaced in the CIP by projects FP-14, FP-15, and upsizing of FP-12). (2) Project FP-10 (30-inch diameter parallel pipeline) replaces project EP-1 (21-inch diameter parallel pipeline).

6.4 Future Treatment System Analysis
The projected growth in the City will increase the total wastewater flow that needs to be treated beyond the capacity of the existing Banning WWTP. As discussed in Section 3, there are several options to increase the City’s WWTP treatment capacity. The alternatives investigated in this study are:
1) Expansion of the Banning WWTP
Table 6.5 Future Collection System Recommendations
Sewer System Study
City of Banning
Project
ID Pipeline Location
Pipeline
Length
(ft)
Parallel
Size (in)
Replace
ment
Size (in)
FP-1(1) Highland Home Rd. between Ramsey St. and
Sunlakes Dr. 3,500 15 n/a
FP-2(1) Highland Home Rd. Sunlakes Dr. and Bobcat Rd. 3,500 15 n/a FP-3 Crossroads Pkwy between Westward LS and Bobat
Rd. 3,500 15 n/a
FP-4(1) Bobcat Rd. between Highland Home Rd. and Sunset Ave. 4,000 15 n/a
FP-5 Highland Home Rd. N/O Wilson St. 1,500 15 n/a
FP-6 Wilson St. W/O Highland Home Rd. 2,000 15 n/a
FP-7 Sunset Ave. between Wilson St. and Ramsey Ave. 2,300 12 n/a FP-8 Hathaway St. between I-10 and Charles St. 3,000 8 n/a FP-9 From intersection of Porter St. & Hathaway St. to
Wesley St. 1,400 24 n/a
FP-10 From Wesley St. to WWTP(2) 1,600 24 n/a
FP-11 Sunset Ave. from Black Bench to Wilson St. 23,500 12 n/a FP-12 Bobcat Rd. from Sunset Ave. to Old Banning
Iddylwild Rd. 11,500 21 n/a
FP-13 Abandonment of Westward LS n/a n/a n/a
FP-14
From the Intersection of Wilson and Highland Homes
Rd to the intersection of Ramsey St and Sunset Ave,
via Wilson St, Omar St, Ramsey St, and following the
easement of the 2 abandoned 8” sewer mains.
7,200 15 n/a
FP-15 Sunset Ave from Ramsey St to 1,300 ft south of
Westward Ave. 4,300 15 n/a
FP-16 Westward Ave from Highland Home Rd to the
abandoned Westward Lift Station (FP-13). 4,300 12 n/a
FP-17 New Lift Station, 0.5 miles east of the WWTP n/a n/a n/a FP-18 Crossing under Interstate 15 along Cottonwood Drive 700 10 n/a FP-19 Cottonwood Drive from Interstate 15 to Westward Av 3,600 10 n/a FP-20 Westward Avenue from the new lift station (FP-17) to the WWTP (force main) via Scott St and Charles St. 4,000 10 n/a 1158
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc 2) Expansion of the Banning WWTP and the construction of a new Satellite Plant that would treat wastewater from the Pardee development.
3) Expansion of the Banning WWTP and the construction of a new Satellite Plant that would treat wastewater from the Loma Linda and Black Bench developments. 4) Expansion of the Banning WWTP and the construction of two new Satellite Plants that would treat wastewater from the Pardee, Loma Linda and Black Bench developments.

The conveyance improvements required for each of these four alternatives are determined with the hydraulic sewer model and presented in this subsection. It should be noted that this analysis was performed with the system configuration that included project FP-1, FP-2, and FP-4 and did not include project FP-14 and FP-15. As the comparison study presented in this section still provides a relative scoring of each option, the analysis was not repeated with the modified system configuration as presented in the CIP that eliminated the routing via Highland Home Road to Bobcat Road for cost and environmental considerations.

6.4.1 Alternative 1 - WWTP Expansion Only
The system recommendations that are required to convey all the projected dry and wet weather wastewater flows to the Regional WWTP are presented in Tables 6.2 and 6.5.

6.4.2 Alternative 2 - One Satellite Plant for Pardee
The construction of a satellite wastewater treatment plant that would treat all wastewater flows from the Pardee development would decrease the City’s wastewater flow under PDWF and PWWF conditions by 1.4 and 2.1 mgd, respectively. Due to this wastewater flow reduction, the following improvements that are required for centralized treatment at the Banning WWTP (Alternative 1) could be reduced in size or eliminated:
• FP-1: Eliminated
• FP-2: Reduced from 15-inch to 12-inch diameter
• FP-4: Reduced from 15-inch to 12-inch diameter
• FP-9: Reduced from 24-inch to 21-inch diameter
• FP-10: Reduced from 30-inch to 24-inch diameter
• FP-12: Reduced from 21-inch to 18-inch diameter

6.4.3 Alternative 3 - One Package Plant for Loma Linda and Black Bench The construction of a satellite wastewater treatment plant that would treat all wastewater flows from the Loma Linda and Black Bench developments would decrease the City’s wastewater flow under PDWF and PWWF conditions by 0.7 and 1.5 mgd, respectively. 1159
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Due to this wastewater flow reduction, the following improvements that are required for centralized treatment at the Banning WWTP (Alternative 1) could be reduced in size or eliminated:
• FP-7: Eliminated
• FP-9: Reduced from 24-inch to 21-inch diameter
• FP-10: Reduced from 30-inch to 24-inch diameter

6.4.4 Alternative 4 - Two Package Plants
The construction of a satellite wastewater treatment plant that would treat all wastewater flows from the Pardee, Loma Linda and Black Bench developments would decrease the City’s wastewater flow under PDWF and PWWF conditions by 2.1 and 3.6 mgd, respectively. Due to this wastewater flow reduction, the following improvements that are required for centralized treatment at the Banning WWTP (Alternative 1) could be reduced in size or eliminated:
• FP-1: Eliminated
• FP-2: Reduced from 15-inch to 12-inch diameter
• FP-4: Reduced from 15-inch to 12-inch diameter
• FP-7: Eliminated
• FP-9: Reduced from 24-inch to 18-inch diameter
• FP-10: Reduced from 30-inch to 21-inch diameter
• FP-12: Partially reduced from 21-inch to 18-inch diameter

6.4.5 Recommendations
The capital cost estimates of the conveyance systems for the four alternatives are summarized in Table 6.6. Based on a depreciation period of 30 years, 5 percent interest, and an average treatment capacity of 7.9 mgd, the overall unit cost of treatment and collection system improvements are estimated. These unit costs are presented in Table

6.1. As shown in this table, the unit cost range from $1,169/mgd to $1,251/mgd. 1160
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Table 6.6 Alternatives Comparison
Sewer System Study
City of Banning
Capital Cost Component Alt. 1
WWTP only
Alt.2
Pardee SP
Alt. 3
Loma Linda SP
Alt. 4
Two SPs
Treatment(1) ($million) $29.9 $34.8 $37.3 $42.0
Collection ($million) $23.9 $20.9 $22.6 $20.0
Recycled Water(2) ($million) $0.0 $0.8 ($2.8) ($4.4)
Total ($million) $53.8 $56.6 $57.1 $57.6
Capital Cost ($million/yr) $3.5 $3.7 $3.7 $3.7
Unit Cost(3) ($/mgd) $1,169 $1,230 $1,241 $1,251
(1) Tertiary treatment and the potential expansion of the solids handling facilities are not included. (2) Based on the incremental recycled water system cost compared to Alternative 1 per Table 6.4 of RWMP [3] (3) Based on a 30-year depreciation period of 30, 5 percent interest, and AWF of 7.9 mgd.

Based on this unit cost comparison, it can be concluded that Alternative 1 is the most costeffective. However, the difference in capital and unit cost is not significant as it only varies +/- 3 percent from the average capital and unit cost. Other considerations are therefore more important and should determine if package plants are beneficial for the City. These other considerations include, but are not limited to:
• Land acquisition opportunities and constraints
• Odor control at the influent and effluent of the Satellite Plants • Traffic related to hauling of solids to the Banning WWTP • Additional staffing requirements for the Satellite Plants • Appearance of satellite plants in residential areas
• Environmental issues
• Political factors
Based on these other considerations it is unknown at this time if the construction of satellite plants for the new developments will be implemented. Due to the uncertainties associated with the satellite plants it was decided to plan for the alternative with the most extensive conveyance improvements, Alternative 1, which consists of centralized wastewater treatment and the expanded regional WWTP. By planning for this alternative, the proposed collection system can accommodate all treatment alternatives, with and without satellite plants. The associated treatment plant recommendations are summarized in Table 6.7. 1161
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6.5 Recommended System Configuration
The recommended sewer system consists of a conveyance system that is sized to treat all the existing and projected wastewater flows under dry and wet weather conditions at the Banning WWTP. The WWTP would need to be expanded by 4.6 mgd to a capacity of the projected average DWF of 8.2 mgd for year 2030. In addition, 8.2 mgd of tertiary treatment capacity would need to be installed and all pipeline improvements, as listed in Table 6.2 and Table 6.5, need to be implemented.

The phasing of these improvements, the cost estimates per project, and the phasing and allocation of the estimated cost are presented in the Capital Improvement Program, which is discussed in Section 7.

Table 6.7 Future Treatment System Recommendations
Sewer System Study
City of Banning
Project ID Pipeline Location Capacity
(mgd)
FP-21 WWTP Stage 1 expansion from 3.6 mgd to 5.1 mgd. 1.5 FP-22 Tertiary treatment of 5.1 mgd 5.1
FP-23 WWTP Stage 2 expansion from 5.1 mgd to 6.7 mgd 1.6 FP-24 Tertiary treatment expansion from 5.1 mgd to 6.7 mgd 1.6 FP-25 WWTP Stage 3 expansion from 6.7 mgd to 8.2 mgd 1.5 FP-26 Tertiary treatment expansion from 6.7 mgd to 8.2 mgd 1.5 1162
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BLANK PAGE
.
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7.0 CAPITAL IMPROVEMENT PLAN
The objective of this Section is to present the City’s sewer system capital improvement program (CIP). This CIP consists of the phasing, cost estimates, and the allocation of project cost for the recommended improvements as defined in Section 6. The purpose of this CIP is to provide the City with a guideline for the planning and budgeting of its sewer system.

It should be noted that the model used for this Sewer System Study was created from preliminary GIS data, which has been further checked and updated since the start of the project. Based on the connectivity, elevation, and invert data issues encountered during the model creation and calibration (see Section 5), it is highly recommended that:
• The hydraulic model is updated with the new GIS data, when available; • The updated model is re-calibrated under dry and wet weather conditions; • All deficiencies and recommendations presented in study be verified with the updated calibrated model
• The CIP presented in this section is updated with the findings from these model verification runs.

7.1 Phasing of Improvements
The recommended improvements are divided into two development stages, Phase 1 and Build Out. The phasing of the improvements is summarized in Table 7.1 and graphically presented on Figure 7.2. As shown in Table 7.1 and Figure 7.2, the majority of the sewer system improvements are included in Phase 1.
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Table 7.1 Sewer System Improvements - Phasing
Sewer System Study
City of Banning
Project
ID Project Description Length (ft)
Size
(in) Phase
Pipeline Improvements
EP-2 Ramsey St. betw. Omar St. and 15-inch trunk line on Ramsey 100 8 1 FP-3 Crossroads Pkwy between Westward LS and Bobat Rd. 3,500 15 1 FP-5 Highland Home Rd. N/O Wilson St. 1,500 15 1
FP-6 Wilson St. W/O Highland Home Rd. 2,000 15 1
FP-7 Sunset Ave. between Wilson St. and Ramsey Ave. 2,300 12 2 FP-8 Hathaway St. between I-10 and Charles St. 3,000 8 1 FP-9 From intersection of Porter St. & Hathaway St. to Wesley St. 1,400 24 2 FP-10 From Wesley St. to WWTP (replaces EP-1) 1,600 30 2 FP-11 Sunset Ave. from Black Bench to Wilson St. 23,500 12 1 FP-12 Bobcat Rd. from Sunset Ave. to Old Banning Iddylwild Rd. 11,500 21 1 FP-14
From the Intersection of Wilson and Highland Homes Rd to the intersection of Ramsey St and Sunset Ave, via Wilson St, Omar St, Ramsey St, and following the easement of the 2 abandoned 8” sewer mains.
7,200 15 1
FP-15 Sunset Ave from Ramsey St to 1,300 ft south of Westward Ave. 4,300 15 1
FP-16 Westward Ave from Highland Home Rd to the abandoned Westward Lift Station (FP-13). 4,300 12 2
FP-18 Crossing under Interstate 15 along Cottonwood Drive 700 10 2 FP-19 Cottonwood Drive from Interstate 15 to Westward Av 3,600 10 2 FP-20 Westward Avenue from the new lift station (FP-17) to the WWTP (force main) via Scott St and Charles St. 4,000 10 2 Other Improvements Size Unit
FP-13 Abandonment of Westward LS 4.8 mgd 2
FP-17 New LS east of the WWTP (40 hp) 1.0 mgd 2
FP-21 WWTP Stage 1 expansion from 3.6 mgd to 5.1 mgd. 1.5 mgd 1 FP-22 Tertiary treatment of 5.1 mgd 5.1 mgd 1
FP-23 WWTP Stage 2 expansion from 5.1 mgd to 6.7 mgd 1.6 mgd 1 FP-24 Tertiary treatment expansion from 5.1 mgd to 6.7 mgd 1.6 mgd 1 FP-25 WWTP Stage 3 expansion from 6.7 mgd to 8.2 mgd 1.5 mgd 2 FP-26 Tertiary treatment expansion from 6.7 mgd to 8.2 mgd 1.5 mgd 2 1165
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Figure 7.1 Phasing of Proposed Sewer System Improvements INSERT 11by17
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7.2 Cost Estimates
The estimated construction cost and total capital cost are summarized by Phase in Table

7.2. These cost estimates are based on the unit cost assumptions listed in Table 4.5.

The distribution of the estimated capital cost for the proposed system for year 2030 conditions is graphically presented in Figure 7.2.

Distribution Mains
($0.9 M)
1%
Tertiary Treatment
($13.3 M)
20%
Secondary Treatment
($20.7 M)
32%
Transmission Mains
($30.9 M)
47%
TOTAL CAPITAL COST = $65.9 M
Figure 7.2 Distribution of Estimated Capital Cost
It should be noted that these cost estimates and the information presented in this CIP is based on the assumption that all projected wastewater flows will be treated at the Banning WWTP, which would require an expansion to a capacity of 8.2 mgd. However, as stated in Section 6.4, the difference in capital and unit cost between centralized treatment and the use of satellite plants is not significant. Other considerations are therefore more important and should determine if package plants are beneficial for the City. If these other considerations, such as land availability, make the use of satellite plants favorable, certain collection system improvements listed in this CIP can be reduced in size or avoided. The project changes per alternative are also described in Section 6.4. 1168
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Table 7.2 Sewer System Improvements - Cost Estimates
Sewer System Study City of Banning
Project
ID Project Description Length (ft) Size (in) Unit Cost ($/lf) Constructi on Cost ($) Contingency ($) Mark-ups(1) ($) Capital Cost ($) Conveyance Improvements
EP-2 Ramsey St. between Omar St. and 15-inch main on Ramsey 100 12 $201 $21,000 $7,000 $7,000 $35,000 FP-1 Highland Home Rd. between Ramsey St. and Sunlakes Dr. 3,500 15 $223 $781,000 $235,000 $254,000 $1,270,000FP-2 Highland Home Rd. Sunlakes Dr. and Bobcat Rd. 3,500 15 $223 $781,000 $235,000 $254,000 $1,270,000FP-3 Crossroads Pkwy between Westward LS and Bobat Rd. 3,500 15 $223 $781,000 $235,000 $254,000 $1,270,000FP-4 Bobcat Rd. between Highland Home Rd. and Sunset Ave. 4,000 15 $223 $892,000 $268,000 $290,000 $1,450,000FP-5 Highland Home Rd. N/O Wilson St. 1,500 15 $223 $335,000 $101,000 $109,000 $545,000FP-6 Wilson St. W/O Highland Home Rd. 2,000 15 $223 $446,000 $134,000 $145,000 $725,000FP-7 Sunset Ave. between Wilson St. and Ramsey Ave. 2,300 12 $201 $463,000 $139,000 $151,000 $753,000FP-8 Hathaway St. between I-10 and Charles St. 3,000 8 $180 $540,000 $162,000 $176,000 $878,000FP-9 From intersection of Porter St. & Hathaway St. to Wesley St. 1,400 24 $320 $448,000 $135,000 $146,000 $729,000 FP-10 From Wesley St. to WWTP (replaced EP-1) 1,600 24 $320 $512,000 $154,000 $167,000 $833,000FP-11 Sunset Ave. from Black Bench to Wilson St. 23,500 12 $201 $4,724,000 $1,418,000 $1,536,000 $7,678,000FP-12 Bobcat Rd. from Sunset Ave. to Old Banning Iddylwild Rd. 11,500 21 $290 $3,335,000 $1,001,000 $1,084,000 $5,420,000FP-14 From the Intersection of Wilson and Highland Homes Rd to the intersection of Ramsey St and Sunset Ave. 7,200 15 $223 $1,606,000 $482,000 $522,000 $2,610,000 FP-15
Sunset Ave from Ramsey St to 1,300 ft south of Westward Ave. 4,300 15 $223 $959,000 $288,000 $312,000 $1,559,000 FP-16
Westward Ave from Highland Home Rd to the abandoned
Westward Lift Station (FP-13). 4,300 12 $201 $865,000 $260,000 $282,000 $1,407,000 FP-18 Crossing under Interstate 15 along Cottonwood Drive 700 10 $196 $138,000 $42,000 $45,000 $225,000FP-19 Cottonwood Drive from Interstate 15 to Westward Av 3,600 10 $196 $706,000 $212,000 $230,000 $1,148,000FP-20 Westward Avenue from the new lift station (FP-17) to the WWTP (force main) via Scott St and Charles St. 4,000 10 $196 $784,000 $236,000 $255,000 $1,275,000 Subtotal Conveyance Improvements 85,500 n/a n/a 19,117,000 5,744,000 6,219,000 31,080,000 1169
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H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Table 7.2 Sewer System Improvements - Cost Estimates (Continued) Sewer System Study City of Banning
Project
ID Project Description Length (ft) Size (in) Unit Cost ($/lf) Constructi on Cost ($) Contingency ($) Mark-ups(1) ($) Capital Cost ($) Other Improvements Size Size Unit ($/mgd)
FP-13 Abandonment of Westward LS 4.8 mgd LS $100,000 n/a n/a $100,000FP-17 New Lift Station, 0.5 miles east of the WWTP 1 mgd $400,000 $400,000 $120,000 $130,000 $650,000FP-21 WWTP Stage 1 expansion from 3.6 mgd to 5.1 mgd. 1.5 mgd $3,200,000 $4,800,000 $1,440,000 $1,560,000 $7,800,000FP-22 Tertiary treatment of 5.1 mgd 5.1 mgd $1,000,000 $5,100,000 $1,530,000 $1,658,000 $8,288,000FP-23 WWTP Stage 2 expansion from 5.1 mgd to 6.7 mgd 1.6 mgd $3,200,000 $5,120,000 n/a n/a $5,120,000FP-24 Tertiary treatment expansion from 5.1 mgd to 6.7 mgd 1.6 mgd $1,000,000 $1,600,000 $480,000 $520,000 $2,600,000FP-25 WWTP Stage 3 expansion from 6.7 mgd to 8.2 mgd 1.5 mgd $3,200,000 $4,800,000 $1,440,000 $1,560,000 $7,800,000FP-26 Tertiary treatment expansion from 6.7 mgd to 8.2 mgd 1.5 mgd $1,000,000 $1,500,000 $450,000 $488,000 $2,438,000 Subtotal Other Improvements 18.6 mgd n/a $23,420,000 $5,460,000 $5,916,000 $34,796,000GRAND TOTAL n/a n/a n/a $42,537,000 $11,204,000 $12,135,000 $65,876,000 1170
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7.3 Phasing of Project Cost
The phasing of cost by project type is summarized in Table 7.3.

Table 7.3 Phasing of Sewer System CIP
Sewer System Study
City of Banning
System Component Phase 1
($ million)
Phase 2
($ million)
Total
($ million)
Distribution $0.9 $0.0 $0.9
Transmission $21.3 $9.7 $30.9
Secondary Treatment $12.9 $7.8 $20.7
Tertiary Treatment $10.9 $2.4 $13.3
Total $46.0 $19.9 $65.9
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References
[1] NBS Lowry, Sewer Master Plan prepared for the City of Banning, March 1994. [2] MWH, Update of the Banning Wastewater Treatment Facility prepared for the City of Banning, March 2006.
[3] Carollo Engineers, Recycled Water Master Plan prepared for the City of Banning, August 2006.
[4] Metcalf & Eddy, Wastewater Engineering. Treatment, Disposal, and Reuse. Third Edition, 1991.
[5] City of Banning, Historical wastewater flows for the Banning Wastewater Treatment Plant. May 24, 2006.
[6] City of Banning and Terra Nova Planning and Research, City of Banning General Plan, adopted in January 2006.
[7] City of Banning, Parcel information in GIS, 2005
[8] City of Banning, Aerial Photography, 2004
[9] T&B Planning Consultants, Inc. Five Bridges Specific Plan. Prepared for Lennar Communities Inland, May 2006.
[10] RBF, Water Supply Assessment in support of the Pardee Homes - Banning. Tract Project C.U.P. No. 06-801, May 2006.
[11] Black Bench Specific Plan
[12] Douglas Wood & Associates, Specific Plan/Environmental Impact Report for Banning Bench, August 2004.
[13] PSOMAS, SB610/221 Water Supply Assessment and Verification Report. Prepared for the Sunset Crossroad Project from Lennar Communities. June 28, 2005. [14] City of Banning, City of Banning Profile - Economic Development Section of the City’s website. http://www.ci.banning.ca.us/default.asp?page=61, October, 2006. [15] Wildermuth Environmental, Inc., 2005 Urban Water Management Plan - prepared for the City of Banning, December 2005.
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Wastewater Flow Projections
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Land Area Density Total No. Pop. Per DU Total WW Factor WW Factor Total WW Flow Acres DU/Acre DUs Population gpd/Acre gpcd gpd
Residential
PA 1 20.0 4.4 88 2.9 255 ----------- 90 22,968
PA-2 14.6 4.6 67 2.9 195 ----------- 90 17,529
PA-3 27.7 3.5 97 2.9 281 ----------- 90 25,304
PA-4 23.2 3.9 90 2.9 262 ----------- 90 23,615
PA-18 25.4 3.3 84 2.9 243 ----------- 90 21,877
Total - Residential 111 426 1,237 111,293
Total 111 1,237 111,293
Land Area Density Total No. Pop. Per DU Total WW Factor WW Factor Total WW Flow Acres DU/Acre DUs Population gpd/Acre gpcd gpd
Residential 140 1.2 173 2.9 502 90 45,148
Total - Residential 140 173 502 45,148
Total 140 502 45,148
Land Area Density Total No. Pop. Per DU Total WW Factor WW Factor Total WW Flow Acres DU/Acre DUs Population gpd/Acre gpcd gpd
Residential
7,200 SF Minimum 8 3 - 5 28.7 2.9 83 ------- 90 7,482
7,000 SF Minimum 9 3 - 5 35.0 2.9 102 ------- 90 9,135
6,600 SF Minimum 27 3 - 5 113.3 2.9 329 ------- 90 29,580 6,000 SF Minimum 25 3 - 5 112.3 2.9 326 ------- 90 29,319 5,000 SF Minimum 27 5 - 7 149.3 2.9 433 ------- 90 38,976 4,000 SF Minimum 12 6 - 8 80.0 2.9 232 ------- 90 20,880 Garden Courts 4 8 - 10 31.7 2.9 92 ------- 90 8,265
Townhomes 11 11 - 18 169.7 2.9 492 ------- 90 44,283
Total - Residential 122 720 2,088 187,920
Total 122 2,088 187,920
Land Area Density Total No. Pop. Per DU Total WW Factor WW Factor Total WW Flow Acres DU/Acre DUs Population gpd/Acre gpcd gpd
Residential
PA-1A 4 4.4 18 2.9 52 ----------- 90 4,708
PA-1B 6 5.3 30 2.9 87 ----------- 90 7,829
PA-1C 17 5.0 85 2.9 246 ----------- 90 22,152
PA-2 28 4.1 114 2.9 329 ----------- 90 29,642
PA-3 25 11.4 285 2.9 827 ----------- 90 74,385
PA-4 20 4.6 91 2.9 263 ----------- 90 23,652
PA-5 16 4.9 79 2.9 230 ----------- 90 20,718
PA-6 17 4.5 78 2.9 226 ----------- 90 20,319
PA-7 25 5.3 133 2.9 384 ----------- 90 34,583
Total - Residential 158 912 2,644 237,988
Public - Medium Volume
Golf Course Clubhouse 5.4 ----------- ----------- ----------- ----------- 1,500 ----------- 8,100 Total - Public Medium Volume 5.4 8,100
Total 163 2,644 246,088
Land Area Density Total No. Pop. Per DU Total WW Factor WW Factor Total WW Flow Acres DU/Acre DUs Population gpd/Acre gpcd gpd
Residential
1 4 4.00 18 2.9 51 90 4,569
2 8 5.25 42 2.9 123 90 11,053
3 10 4.25 42 2.9 121 90 10,871
4 4 4.25 16 2.9 46 90 4,178
5 9 4.25 36 2.9 105 90 9,429
6 7 5.25 36 2.9 106 90 9,500
7 9 5.25 45 2.9 131 90 11,830
8 4 5.50 23 2.9 65 90 5,886
9 8 7.25 57 2.9 165 90 14,823
Total - Residential 62 315 913 82,138
Total 62 913 82,138
GRAND TOTAL 598 7,383 672,588
Appendix
Loma Linda Development
PHASE 1 BUILDOUT (NEXT 10 YEARS)
Pardee Development (Pardee Homes)
Black Bench Development (SunCal)
Five Bridges Development (Lennar)
BDS (South of I-10)
City of Banning
Sewer System Study Page B-2
Appendix B - Wastewater Flow Projections
11/28/2006
1175
Land Area Density Total No. Pop. Per DU Total WW Factor WW Factor Total WW Flow Acres DU/Acre DU Population gpd/Acre gpcd gpd
Public - Medium Volume
5A 13.1 ------- ------- ------- ------- 1,500 ------- 19,650 Total - Public Medium Volume 13.1 19,650
Residential Area
PA 1 20.0 4.4 88 2.9 255 ----------- 90 22,968
PA-2 14.6 4.6 67 2.9 195 ----------- 90 17,529
PA-3 27.7 3.5 97 2.9 281 ----------- 90 25,304
PA-4 23.2 3.9 90 2.9 262 ----------- 90 23,615
PA-6 29.6 4.8 142 2.9 412 90 37,083
PA-7 25.4 4.3 109 2.9 317 90 28,506
PA-8 16.8 4.6 77 2.9 224 90 20,170
PA-9 21.3 4.2 89 2.9 259 90 23,349
PA-10 27.6 2.5 69 2.9 200 90 18,009
PA-11 48.5 2.2 107 2.9 309 90 27,849
PA-12 38.2 1.6 61 2.9 177 90 15,952
PA-13 30.4 1.8 55 2.9 159 90 14,282
PA-14 70.7 2.3 163 2.9 472 90 42,441
PA-15 35.5 1.7 60 2.9 175 90 15,751
PA-16 12.5 3.8 48 2.9 138 90 12,398
PA-17 23.7 3.9 92 2.9 268 90 24,124
PA-18 25.4 3.3 84 2.9 243 ----------- 90 21,877
Total - Residential 491.1 1,499 4,347 391,208
Total 504.2 4,347 410,858
Land Area Density Total No. Pop. Per DU Total WW Factor WW Factor Total WW Flow Acres DU/Acre DUs Population gpd/Acre gpcd gpd
Public - Medium Volume
Fire Station 2.4 ------- ------- ------- ------- 1,500 ------- 3,600 Total - Public Medium Volume 2.4 3,600
Commercial 36.8 ------- ------- ------- ------- 1,500 ------- 55,200 Total - Commercial 36.8 55,200
Residential Area
7,200 SF Minimum 22.8 3 - 5 86 2.9 249 ------- 90 22,446 7,000 SF Minimum 27.2 3 - 5 105 2.9 305 ------- 90 27,405 6,600 SF Minimum 79.5 3 - 5 340 2.9 986 ------- 90 88,740 6,000 SF Minimum 74.7 3 - 5 337 2.9 977 ------- 90 87,957 5,000 SF Minimum 81.5 5 - 7 448 2.9 1,299 ------- 90 116,928 4,000 SF Minimum 36.8 6 - 8 240 2.9 696 ------- 90 62,640 Garden Courts 10.5 8 - 10 95 2.9 276 ------- 90 24,795
Townhomes 32.1 509 2.9 1,476 ------- 90 132,849
Total Residential 365.1 2,160 6,264 563,760
Total 404.3 6,264 622,560
Land Area Density Total No. Pop. Per DU Total WW Factor WW Factor Total WW Flow Acres DU/Acre DUs Population gpd/Acre gpcd gpd
Residential 372.12 1.3 481 2.9 1,395 90 125,580
Total - Residential 372.12 481 1,395 125,580
Total 372.12 1,395 125,580
Land Area Density Total No. Pop. Per DU Total WW Factor WW Factor Total WW Flow Residential Area Acres DU/Acre DUs Population gpd/Acre gpcd gpd 1 27 5.7 154 2.9 447 ---------- 90 40,194
4 19.6 5.0 98 2.9 284 ---------- 90 25,578
6 16.3 5.4 88 2.9 255 ---------- 90 22,968
8 25.8 4.3 111 2.9 322 ---------- 90 28,971
11 26.8 8.0 214 2.9 621 ---------- 90 55,854
14 15.2 5.4 82 2.9 238 ---------- 90 21,402
17 41.7 5.7 238 2.9 690 ---------- 90 62,118
18 19.5 5.0 98 2.9 284 ---------- 90 25,578
21 17.3 5.4 93 2.9 270 ---------- 90 24,273
22 10.9 5.0 55 2.9 160 ---------- 90 14,355
24 24.7 4.0 99 2.9 287 ---------- 90 25,839
26 33.4 8.0 267 2.9 774 ---------- 90 69,687
Appendix 22 8.0 176 2.9 510 ---------- 90 45,936
30 26 5.0 130 2.9 377 ---------- 90 33,930
31 19.6 4.0 78 2.9 226 ---------- 90 20,358
33 18.6 4.3 80 2.9 232 ---------- 90 20,880
35 23.7 8.0 190 2.9 551 ---------- 90 49,590
36b 20.8 5.4 112 2.9 325 ---------- 90 29,232
37 37.3 5.7 213 2.9 618 ---------- 90 55,593
39 24.5 8.0 196 2.9 568 ---------- 90 51,156
40 19.1 5.7 109 2.9 316 ---------- 90 28,449
42 39.7 5.4 214 2.9 621 ---------- 90 55,854
44 26.4 5.4 143 2.9 415 ---------- 90 37,323
45 55.1 5.4 298 2.9 864 ---------- 90 77,778
46 28.9 4.3 124 2.9 360 ---------- 90 32,364
47 26.9 4.0 108 2.9 313 ---------- 90 28,188
49 51.4 5.0 257 2.9 745 ---------- 90 67,077
50 45.8 5.8 266 2.0 532 ---------- 90 47,880
52 33.5 4.4 147 2.0 294 ---------- 90 26,460
53 19.5 4.4 86 2.0 172 ---------- 90 15,480
55 21.9 5.4 118 2.0 236 ---------- 90 21,240
58 23.8 5.8 138 2.0 276 ---------- 90 24,840
60 21.4 4.4 94 2.0 188 ---------- 90 16,920
61 20.8 4.4 92 2.0 184 ---------- 90 16,560
62 28 5.4 151 2.0 302 ---------- 90 27,180
64 19.8 5.4 107 2.0 214 ---------- 90 19,260
Total - Residential 952.7 5,224 14,071 1,266,345
ULTIMATE BUILDOUT (NEXT 20 YEARS)
Five Bridges Development (Lennar)
Black Bench Development (SunCal)
Pardee Development (Pardee Homes)
BDS (South of I-10)
City of Banning
Sewer System Study Page B-3
Appendix B - Wastewater Flow Projections
11/28/2006
1176
ULTIMATE BUILDOUT (NEXT 20 YEARS)
Commercial
3 12.9 ---------- ---------- ---------- ---------- 1,500 ---------- 19,350 9 22.7 ---------- ---------- ---------- ---------- 1,500 ---------- 34,050 Total - Commercial 35.6 53,400
Public - Medium Volume
16 1.9 1,500 ---------- 2,850
12 6.6 ---------- ---------- ---------- ---------- 1,500 ---------- 9,900 36a 6 ---------- ---------- ---------- ---------- 1,500 ---------- 9,000 65 8 ---------- ---------- ---------- ---------- 1,500 ---------- 12,000 Total - Public Medium Volume 22.5 33,750
Public - Low Volume (Recreational)
7 4.8 ---------- ---------- ---------- ---------- 1,000 ---------- 4,800 59 5 ---------- ---------- ---------- ---------- 1,000 ---------- 5,000 Total - Public Low Volume 9.8 9,800
Total 1,021 14,071 1,363,295
Land Area Density Total No. Pop. Per DU Total WW Factor WW Factor Total WW Flow Acres DU/Acre DUs Population gal. Per acre gpcd gpd
Residential Area
1 13.1 4.00 53 2.9 152 90 13,708
2 24.2 5.25 127 2.9 368 90 33,160
3 29.4 4.25 125 2.9 362 90 32,612
4 11.3 4.25 48 2.9 139 90 12,535
5 25.5 4.25 108 2.9 314 90 28,286
6 20.8 5.25 109 2.9 317 90 28,501
7 25.9 5.25 136 2.9 394 90 35,489
8 12.3 5.50 68 2.9 196 90 17,657
9 23.5 7.25 170 2.9 494 90 44,468
Total - Residential 186.0 944 2,738 246,415
Commercial Area
10 10 ---------- ---------- ---------- ---------- 1,500 ---------- 15,000 12 1.7 ---------- ---------- ---------- ---------- 1,500 ---------- 2,550 Total - Commercial 11.7 17,550
Public - Medium Volume Area
11 6.2 ---------- ---------- ---------- ---------- 1,500 ---------- 9,300 Total - Public Medium Volume 6.2 9,300
Public - Low Volume Area
13 3 ---------- ---------- ---------- ---------- 1,000 ---------- 3,000 14 1 ---------- ---------- ---------- ---------- 1,000 1,000 Total - Public Low Volume 4 4,000
Total 207.9 2,738 277,265
GRAND TOTAL 2,509 28,815 2,799,558
Note: wastewater flow factors are the same factors as those used in the City's 1994 Sewer Master Plan.

Loma Linda Development
Pardee Development (Pardee Homes)
(Continued)
City of Banning
Sewer System Study Page B-3
Appendix B - Wastewater Flow Projections
11/28/2006
1177
1178
FINAL - December 1, 2006 C-1
H:\client\BanningCityof\7464A00\Dlv\Rpt\Final SMP\Sewer System Study Final_2.doc Appendix C
Flow Monitoring Data
1179
Flow Monitoring Site 1
Date Time
Max level
(ft)
Min level
(ft)
Max flow
(gpm)
Min flow
(gpm)
Ave flow
(gpm)
Volume
(gal)
Total flow
(gal)
7/3/2006 9AM - 9PM 0.385 -0.491 856 0 560 400450 400450 7/3/2006 9PM - 9AM 0.334 -0.261 644 0 323 231720 632180 7/4/2006 9AM - 9PM 0.373 -0.141 803 0 568 407370 1039550 7/4/2006 9PM - 9AM 0.346 -0.06 694 0 358 256640 1296190 7/5/2006 9AM - 9PM 0.371 -0.145 795 0 531 388760 1684960 7/5/2006 9PM - 9AM 0.352 -0.133 717 0 353 259660 1944620 7/6/2006 9AM - 9PM 0.372 -0.166 801 0 520 377850 2322470 7/6/2006 9PM - 9AM 0.344 -0.314 684 0 349 254040 2576520 7/10/2006 9AM - 9PM 0.358 -0.188 742 0 426 304950 305030 7/10/2006 9PM - 9AM 0.337 -0.164 657 0 321 232450 537490 7/11/2006 9AM - 9PM 0.360 -0.176 748 0 436 310950 848440 7/11/2006 9PM - 9AM 0.318 -0.459 584 0 316 229740 1078180 7/12/2006 9AM - 9PM 0.320 -0.178 593 0 433 317320 1395510 7/12/2006 9PM - 9AM 0.361 -0.165 741 0 356 257890 1653410 7/13/2006 9AM - 9PM 0.353 -0.169 721 0 505 357680 2011090 7/13/2006 9PM - 9AM 0.403 -0.385 938 0 441 318530 2329630 7/14/2006 9AM - 9PM 0.419 -0.187 1013 0 562 402370 2732000 7/14/2006 9PM - 9AM 0.338 -0.242 661 0 345 249900 2981900 7/15/2006 9AM - 9PM 0.354 -0.161 726 0 464 335680 3317580 7/15/2006 9PM - 9AM 0.349 -0.247 706 0 349 253290 3570870 7/16/2006 9AM - 9PM 0.354 -0.164 676 0 489 354780 3925650 7/16/2006 9PM - 9AM 0.346 -0.260 693 0 379 272200 4797870 MAX/MIN/AVE 1013 0 427
City of Banning
Sewer System Study Page C-2
Appendix C - Flow Monitoring Data
11/28/2006
1180
Flow Monitoring Site 2
Date Time
Max level
(ft)
Min level
(ft)
Max flow
(gpm)
Min flow
(gpm)
Ave flow
(gpm)
Volume
(gal)
Total flow
(gal)
7/3/2006 9AM - 9PM 2.514 0.722 4005 1061 1541 1106280 1106280 7/3/2006 9PM - 9AM 1.204 0.459 2735 428 765 551980 1658260 7/4/2006 9AM - 9PM 1.341 0.693 3280 980 1465 1055980 2714250 7/4/2006 9PM - 9AM 1.208 0.443 2753 399 831 598870 3313120 7/5/2006 9AM - 6PM 1.297 0.699 3103 996 1386 750370 4063490 7/7/2006 10AM - 9PM 1.239 0.710 2873 1027 1358 913420 4976910 7/7/2006 9PM - 9AM 1.170 0.450 2605 412 847 609730 5586640 7/8/2006 9AM - 9PM 1.546 0.707 4102 1017 1421 1024440 6611080 7/8/2006 9PM - 9AM 1.287 0.446 3065 405 833 600280 7211370 7/9/2006 9AM - 9PM 1.770 0.729 4958 1082 1602 1155720 8367090 7/9/2006 9PM - 9AM 1.688 0.461 4655 433 1070 770870 9137960 7/10/2006 9AM - 9PM 1.669 0.754 4582 1155 1619 1167850 10305810 7/10/2006 9PM - 9AM 1.263 0.489 2971 487 1011 729320 11035130 7/11/2006 9AM - 9PM 1.245 0.736 2899 1101 1477 1065140 12100280 7/11/2006 9PM - 9AM 1.049 0.497 2144 505 945 681640 12781930 7/12/2006 9AM - 9PM 1.347 0.738 3307 1107 1422 1025420 13807350 7/12/2006 9PM - 9AM 1.115 0.496 2391 502 1005 724810 14532160 7/13/2006 9AM - 9PM 1.339 0.724 3274 1068 1542 1111990 15644160 7/13/2006 9PM - 9AM 1.298 0.513 3107 537 1182 852920 16497090 7/14/2006 9AM - 9PM 1.327 0.762 3225 1177 1525 1099280 17596370 7/14/2006 9PM - 9AM 1.432 0.517 3648 547 1025 738790 18335160 7/15/2006 9AM - 9PM 1.302 0.760 3124 1172 1552 1118870 19454040 7/15/2006 9PM - 9AM 1.261 0.503 2963 517 944 680360 20134410 7/16/2006 9AM - 9PM 1.548 0.756 4110 1161 1659 1196530 21330940 7/16/2006 9PM - 9AM 1.156 0.507 2551 524 1031 744160 22075100 MAX/MIN/AVE 4958 399 1242
City of Banning
Sewer System Study Page C-3
Appendix C - Flow Monitoring Data
11/28/2006
1181
Flow Monitoring Site 3
Date Time
Max level
(ft)
Min level
(ft)
Max flow
(gpm)
Min flow
(gpm)
Ave flow
(gpm)
Volume
(gal)
Total flow
(gal)
7/3/2006 10AM - 10PM 1.568 0.200 7292 78 128 77480 77480 7/5/2006 10AM - 10PM 0.276 0.201 152 79 110 80570 178130 7/5/2006 10PM - 10AM 0.252 0.147 126 41 79 57920 236060 7/6/2006 10AM - 10PM 0.253 0.202 127 80 107 77980 314040 7/6/2006 10PM - 10AM 0.255 0.135 130 34 75 54950 369000 7/7/2006 10AM - 10PM 0.255 0.196 129 75 101 73870 442870 7/7/2006 10PM - 10AM 0.265 0.139 139 36 74 54070 496950 7/8/2006 10AM - 10PM 0.267 0.190 142 71 100 72870 569820 7/8/2006 10PM - 10AM 0.265 0.122 140 28 71 52190 622010 7/9/2006 10AM - 10PM 0.264 0.198 139 77 103 75020 697040 7/9/2006 10PM - 10AM 0.258 0.146 133 41 72 52860 749900 7/10/2006 10AM - 10PM 0.254 0.195 128 75 99 72080 821990 7/10/2006 10PM - 10AM 0.246 0.135 121 35 68 50080 872070 7/11/2006 10AM - 10PM 0.248 0.180 122 63 95 69660 941730 7/11/2006 10PM - 10AM 0.243 0.143 117 39 69 50550 992280 7/12/2006 10AM - 10PM 0.248 0.176 122 60 95 69740 1062030 7/12/2006 10PM - 10AM 0.255 0.147 129 41 70 51270 1113310 7/13/2006 10AM - 10PM 0.251 0.187 125 69 98 71570 1184880 7/13/2006 10PM - 10AM 0.252 0.144 126 40 71 52020 1236900 7/14/2006 10AM - 10PM 0.249 0.177 123 61 95 69100 1306010 7/14/2006 10PM - 10AM 0.259 0.147 133 41 70 51420 1357430 7/15/2006 10AM - 10PM 0.255 0.166 130 53 96 70710 1428140 7/15/2006 10PM - 10AM 0.268 0.140 143 37 66 48610 1476760 7/16/2006 10AM - 10PM 0.270 0.173 145 58 101 73610 1550370 7/16/2006 10PM - 10AM 0.244 0.140 118 37 68 49720 1600100 MAX/MIN/AVE 152 28 87
City of Banning
Sewer System Study Page C-4
Appendix C - Flow Monitoring Data
11/28/2006
1182
Flow Monitoring Site 4
Date Time
Max level
(ft)
Min level
(ft)
Max flow
(gpm)
Min flow
(gpm)
Ave flow
(gpm)
Volume
(gal)
Total flow
(gal)
7/3/2006 10AM - 10PM 0.5853 0.4677 1236 802.3 949.9 684290 694350 7/3/2006 10PM - 10AM 0.6234 0.1160 1398 374.3 769.7 554770 1249130 7/4/2006 10AM - 10PM 0.5881 0.4296 1255 673.3 904.6 651840 1900970 7/4/2006 10PM - 10AM 0.5976 0.3050 1285 340.0 740.0 533170 2434150 7/5/2006 10AM - 10PM 0.5909 0.4700 1245 813.6 930.5 670420 3104570 7/7/2006 10AM - 10PM 0.5787 0.4540 1225 756.2 899.0 636090 5195710 7/7/2006 10PM - 10AM 0.6163 0.3396 1369 416.2 777.8 560470 5756190 7/8/2006 10AM - 10PM 0.6142 0.3692 1351 499.9 678.2 488870 6245060 7/8/2006 10PM - 1AM 0.4092 0.3332 593.1 407.5 492.4 86270 6331340 7/10/2006 11AM - 10PM 0.5440 0.4065 1060 612.8 764.0 538650 6869990 7/10/2006 10PM - 10AM 0.5778 0.2991 1203 330.8 669.9 482600 7352600 7/11/2006 10AM - 10PM 0.5598 0.4377 1135 704.8 834.6 601050 7953660 7/11/2006 10PM - 10AM 0.6100 0.3236 1342 391.4 777.5 560110 8513770 7/12/2006 10AM - 10PM 0.5811 0.4559 1226 765.5 908.9 654500 9168280 7/12/2006 10PM - 10AM 0.6076 0.3421 1299 430.6 771.4 555750 9724040 7/13/2006 10AM - 4PM 0.6694 0.2945 1599 317.6 836.8 272310 9996350 MAX/MIN/AVE 1599 317.6 794.1
City of Banning
Sewer System Study Pagge C-5
Appendix C - Flow Monitoring Data
11/28/2006
1183
Flow Monitoring Site 5
Date Time
Max level
(ft)
Min level
(ft)
Max flow
(gpm)
Min flow
(gpm)
Ave flow
(gpm)
Volume
(gal)
Total flow
(gal)
7/3/2006 10AM - 10PM 0.185 0.064 189 11 115 84150 84150 7/3/2006 10PM - 10AM 0.227 0.057 285 16 115 83970 168120 7/4/2006 10AM - 10PM 0.210 0.059 244 17 119 86540 254670 7/4/2006 10PM - 10AM 0.205 0.063 232 19 120 88030 342700 7/5/2006 10AM - 10PM 0.202 0.064 226 20 126 91640 434340 7/5/2006 10PM - 10AM 0.197 0.073 215 26 124 89900 524250 7/6/2006 10AM - 10PM 0.197 0.060 214 17 111 80960 605210 7/6/2006 10PM - 10AM 0.204 0.080 230 33 127 92390 697610 7/7/2006 10AM - 10PM 0.207 0.046 237 10 117 85430 783040 7/7/2006 10PM - 10AM 0.211 0.053 246 13 124 90550 873600 7/8/2006 10AM - 10PM 0.202 0.064 225 20 118 85700 959310 7/8/2006 10PM - 10AM 0.203 0.066 228 21 119 86180 1045490 7/9/2006 10AM - 10PM 0.200 0.068 221 23 123 89520 1135010 7/9/2006 10PM - 10AM 0.199 0.061 219 18 126 91790 1226810 7/10/2006 10AM - 10PM 0.197 0.064 215 20 132 95900 1322720 7/10/2006 10PM - 10AM 0.204 0.055 231 14 121 88510 1411240 7/11/2006 10AM - 10PM 0.198 0.053 216 14 132 95870 1507110 7/11/2006 10PM - 10AM 0.205 0.064 233 20 124 89760 1596870 7/12/2006 10AM - 10PM 0.197 0.057 215 16 127 92850 1689720 7/12/2006 10PM - 10AM 0.222 0.072 275 26 127 92060 1781780 7/13/2006 10AM - 10PM 0.193 0.071 206 25 133 96550 1878340 7/13/2006 10PM - 10AM 0.203 0.067 229 22 122 88800 1967150 7/14/2006 10AM - 10PM 0.195 0.057 211 15 126 92000 2059150 7/14/2006 10PM - 10AM 0.207 0.051 237 12 122 88950 2148100 7/15/2006 10AM - 10PM 0.200 0.057 221 16 131 95740 2243850 7/15/2006 10PM - 10AM 0.200 0.053 221 14 115 83650 2327500 7/16/2006 10AM - 10PM 0.204 0.052 231 13 132 96260 2423760 7/16/2006 10PM - 10AM 0.200 0.068 222 23 129 93610 2517370 MAX/MIN/AVE 285 10.0 123.5
City of Banning
Sewer System Study Page C-6
Appendix C - Flow Monitoring Data
11/28/2006
1184
City of Banning
Spill Emergency Response Plan
Water and Wastewater Department
176 E Lincoln St.

Banning, CA. 92220
Adopted July 2009
Revisions: 2/2012; 4/21/14; 6/30/15; 11/24/20Adopted July 2009 Revisions:
5/2/2012; 4/21/2014;
6/30/2015; 11/24/2020;
6/1/2023; 6/1/2024
(Plan last updated June 1, 2024)
1185
Spill Emergency Response Plan
City of Banning SSMP I June 1, 2024

TABLE OF CONTENTS

1. Requirements 1

2. Introduction 2

3. Purpose 3

4. Goals and Objectives 3

5. Initial SSO Response Procedures 4

5.1 Staff Instructions 4

5.2 First Responder Duties and Responsibilities 6

5.3 Spill Response Supervisor 6

5.4 Water & Wastewater Superintendent 6

5.5 Industrial Pretreatment 7

6. Notification Procedures 7

6.1 Notification to the California Office of Emergency Services 7

6.2 Emergency Call Out Lists 8

7. Assessment, Containment, Traffic Control and Clean-up 10

7.1 Preliminary Assessment of Damage to Private/Public Property 10

7.2 Containment 10

7.3 Traffic and Crowd Control 10

8. Initial Estimates of Flow Volume 11

9. Additional Measures for Prolonged SSO Conditions 11

10. Clean-up 11

11. Monitoring Procedures 12

11.1 Receiving Water Visual Observations 12

11.2 Receiving Water – Water Quality Sampling and Analysis 12

11.3 Receiving Water Sampling Locations 13

11.4 Ground (Non-Surface Water) SSO 14

12. Private Property SSOs 14

13. Reporting Procedures 14

13.1 Reporting of Individual Category 1 Spills 15

13.2 Reporting of Individual Category 2 Spills 15

13.3 Reporting for Category 3 Spills 15

13.4 Reporting for Category 4 Spills 16

13.5 Amended Certified Spill Reports 16

14. Electronic Reporting Procedures 16

15. Spill Report Debriefing 18

16. Collection System Mapping 18

17. Training 18

18. Public Advisory Procedure 19

18.1 Temporary Signage 19

19. SERP Maintenance 20

19.1 Submittal and Availability of the SERP 20

19.2 Review and Update of SERP 20

20. Tracking SSOs 21
1186
City of Banning SSMP II November 24, 2020 Revision

1. NOTIFICATION REQUIREMENTS 4

1.1. Notification of Spills of 1,000 Gallons or Greater to the California Office of Emergency Services 4

1.2. Spill Notification Information 5

1.3. Notification of Spill Report Updates 5

2. SPILL-SPECIFIC MONITORING REQUIREMENTS 6

2.1 Spill Location and Spread 6

2.2 Spill Volume Estimation 6

2.3. Receiving Water Monitoring 6

2.3.2. Receiving Water – Water Quality Sampling and Analysis 7

2.3.3. Water Quality Analysis Specifications 8

2.3.4. Receiving Water Sampling Locations 8

20.1 Sampling of Flow in Drainage Conveyance System (DCS) Prior to Discharge 8

2.4. Safety and Access Exceptions 9

3. REPORTING REQUIREMENTS 9

3.1. Reporting Requirements for Individual Category 1 Spill Reporting 9

3.1.2. Certified Spill Report for Category 1 Spills 10

3.1.3. Spill Technical Report for Individual Category 1 Spill in which 50,000 Gallons or Greater Discharged into a Surface Water 11

3.1.4. Amended Certified Spill Reports for Individual Category 1 Spills 13

3.2. Reporting Requirements for Individual Category 2 Spill Reporting 13

3.2.2. Certified Spill Report for Category 2 Spills 14

3.2.3. Amended Certified Spill Reports for Individual Category 2 Spills 15

3.3. Monthly Certified Spill Reporting for Category 3 Spills 15

3.4. Monthly Certified Spill Reporting for Category 4 Spills 17

3.5. Amended Certified Spill Reports for Category 3 Spills 17

3.6. Annual Certified Spill Reporting of Category 4 and/or Lateral Spills 17

3.7. Monthly Certification of “No-Spills” or “Category 4 Spills” and/or “Non-Category 1 Lateral Spills” 17

3.8. Electronic Sanitary Sewer System Service Area Boundary Map 18

3.9. Annual Report (Previously termed as Collection System Questionnaire in General Order 2006-0003-DWQ) 18

3.10. Sewer System Management Plan Audit Reporting Requirements 20

3.11. Sewer System Management Plan Reporting Requirements 20

4. RECORDKEEPING REQUIREMENTS 21

4.1. Recordkeeping Time Period 21

4.2. Availability of Documents 21

4.3. Spill Reports 21

4.4. Recordkeeping of Category 4 Spills and Non-Category 1 Lateral Spills 22

4.5. Sewer System Telemetry Records 23

4.6. Sewer System Management Plan Implementation Records 24

4.7. Equipment Records 24

4.8. Work Orders 24
1187
Spill Emergency Response Plan
City of Banning SSMP II June 1, 2024

APPENDICES
A-1 – Sewer Overflow Report Form
A-2 – Engineering Calculations for Estimating Spill Rate and Volume A-3 – Summary Tables for Notification, Monitoring and Reporting Requirements A-4 – Spill Emergency Response Plan Flow Diagram
A-5 – General Order Attachment E-1

LIST OF FIGURES
Figure 17-1 CIWQS Log-in Screen Shot............................................................................. 17 Figure 17-2 SSO Electronic Reporting CIWQS Menu Screen............................................ 17 Figure 20-1 Sewage Spill Sign ............................................................................................ 20 Figure 22-1 No Spill Certification Report ........................................................................... 22

LIST OF TABLES
Table 5-1 Spills Response Duties & Contacts 5
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Spill Emergency Response Plan
The following document contains spill response procedures that are required by the State of California (Statewide Waste Discharge Requirements (WDR) – General Order WQ 2022- 0103-DWQ. The Spill Emergency Response Plan is just one of eleven Sewer System Management Plan (SSMP) elements

1. Requirements
Each Enrollee shall develop and implement a Spill Emergency Response Plan (SERP) that identifies measures to protect public health and the environment.

At a minimum, this plan must include the following:
a) Proper notification procedures so that the primary responders, appropriate regulatory officials, and appropriate regulatory agencies are informed of all (Sanitary Sewer Overflows) SSOs in a timely manner; b) Proper notification of other potentially affected entities (e.g., health agencies, A program to ensure an appropriate response to all overflows;
c) Comply with the notification, monitoring, and reporting requirements of the General Order (WQ 2022-0103-DWQ), 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 prevent/minimize 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) Implement technologies, practices, equipment, and interagency coordination to expedite spill containment and recovery; k) Implement 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 Order WQ 2022-0103- DWQ; and
n) Annually, review and assess effectiveness of the Spill Emergency Response Plan.
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2. Introduction
The SERP provides procedures to ensure prompt and effective actions to minimize the impact of SSOs on the environment and public health. This plan includes protocols for spill containment, traffic control, cleanup operations, notification procedures, reporting mechanisms, and monitoring activities, SSO tracking, among other components.

This plan encompasses four (4) categories of SSOs, as defined by SWRCB Order WQ 2022-0103-DWQ. The categories are defined as follows:
• Category 1 - A spill of any volume of sewage from or caused by a sanitary sewer system that results in a discharge to a surface water or a drainage conveyance system that discharges to surface waters when the sewage is not fully captured and returned to the sanitary sewer system or disposed of properly. Any spill volume not recovered from a drainage conveyance system is considered a discharge to surface water, unless the drainage conveyance system discharges to a dedicated stormwater infiltration basin or facility.
• Category 2 - A spill of 1,000 gallons or greater, from or caused by a sanitary sewer system that does not discharge to a surface water. • Category 3 - A spill of equal to or greater than 50 gallons and less than 1,000 gallons, from or caused by a sanitary sewer system that does not discharge to a surface water.
• Category 4 - A spill of less than 50 gallons, from or caused by a sanitary sewer system that does not discharge to a surface water.

Possible SSOs occur in one of three areas of the collection/treatment system as follows:

1. Collection System;

2. Lift Station; or

3. Treatment Plant
The response procedures for SSOs are determined by the classification and location of the SSO. While the objectives of the response remain the same, the coordination and personnel chain of communication is slightly different.

For spills on City property (i.e., at the Wastewater Reclamation Facility) on-site personnel report the spill to the Wastewater Reclamation Manager who makes operational decisions regarding the containment, recovery, and clean-up. All 1190
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documentation and reporting of the spill is performed by the Wastewater Operation Manager or their designee, through the completion of an SSO Report Form.

In the event of spills occurring in public areas like the lift station or collection system, notifications are promptly relayed to the relevant response team members.

Upon arrival at the site, said personnel collects essential information regarding SSO location, potential cause(s), initial estimates of volume, containment requirements, etc. Further personnel and equipment are deployed as deemed necessary following the initial assessment conducted on-site.

Every effort will be made to ensure that all reported SSOs are responded to within the first hour of notification of the SSO.

3. Purpose
The primary purpose of the SERP is to offer detailed written procedures aimed at enhancing response efficiency, offering clear guidance on containment, cleanup and reporting, and minimize the overall risks associated with SSOs.

4. Goals and Objectives
The City acknowledges its duty to protect public health and the environment, as reflected in the objectives of the SERP. These objectives aim to:
• Ensure all reported SSOs are responded to immediately; • Identify and allocate adequate resources needed in the response; • Provide timely and adequate training, equipment and qualified staff to ensure effective response; and
• Ensure all SSOs are accurately reported and any SSO trends are identified and used to provide opportunities for continuous improvement.

The objectives of the SERP are to:
• Reduce the occurrence and the magnitude of SSOs;
• Protect the collection system, wastewater treatment facilities, and all appurtenances;
• Protect public and private property;
• Protect water quality;
• Protect Public Health, Safety, environment and property from SSOs; • Prevent the discharge of sewage into surface waters;
• Contain the sewage discharged to the maximum extent possible; • Establish perimeters and control zones to control public access to SSO area; and • Prompt notification of spill information and potential impacts. 1191
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5. Initial SSO Response Procedures
This section outlines a strategy for mobilizing labor, materials, tools, and equipment to address or rectify any conditions that could potentially lead to or exacerbate an SSO.

5.1 Staff Instructions
Upon receiving a report of a potential SSO, the City gathers all pertinent details, including the time and date of the call, precise location, description of the issue, suspected time of the SSO occurrence, caller's contact information, and any additional observations provided by the caller. The relevant information is relayed to the designated staff member(s), who are then dispatched to the location to confirm and conduct an initial assessment of the situation. Staff notifications are typically made via telephone or mobile radio. Upon receipt of the dispatch, City personnel proceed promptly to the location of the SSO. Efforts are made to contain the overflow using existing equipment and resources to the fullest extent possible. The Water & Wastewater Superintendent or their assigned representative is briefed by the responding staff, who then determine whether additional crews, materials, equipment, and supplies are required.

The primary responsibilities of each employee in the spill response team are summarized in the following table. Additional details of the responsibilities are covered in the sections that follow.
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SANITARY SEWER OVERFLOW RESPONSE TEAM
Responsibilities Contact Information
First Responder
• Provide initial evaluation of spill severity
• Call emergency services, as required
• Notify Spill Response Supervisor
• Stop spill and secure area as instructed by
Spill Response Supervisor
Collection System
Supervisor
(951) 392-7172 or
(951) 232-9236
Spill Response
Supervisor
• Direct First Responder in initial actions to
control spill and prevent public exposures
to spill
• Evaluate spill and determine actions to
control and cleanup
• Notify Water & Wastewater
Superintendent
• Mobilize personnel/equipment to respond
to spill
• Complete Sanitary Sewer Overflow
Report (field form) and initiate agency
notifications
Collection System
Supervisor
(951) 392-7172
Water & Wastewater
Superintendent
• Authorize City resources to respond to
spill
• Communicate with Director of Water &
Wastewater, and Regulatory Agencies.
• Contact and direct outside services, as
required, to respond to spill
(951) 849-3273 or
Cell
(951) 232-9236
Public Works Director
• Authorize City or contractors to respond
to the spill
• Communicate with City Manager,
Regulatory Agencies, and public
information officer
(951) 922-3134
Cell
(951) 232-7288
Industrial Pretreatment
• Determine required sampling for spill and
initiate investigation, as indicated,
regarding potential sources of the cause of
the SSO.

G&G
(951) 683-3538
Cell (951) 858-1542
Table 5-1 Spills Response Duties & Contacts
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5.2 First Responder Duties and Responsibilities
The first City Employee who arrives at the site of a SSO has the primary responsibility of taking immediate actions to protect the health and safety of the public. Secondly, the first responder must ensure that proper notifications are made to the Wastewater Department to initiate a timely and effective response needed to minimize the risks associated with the SSO.

Should the first responder determine that the SSO falls outside the City’s jurisdiction (e.g., private lateral spill), yet an imminent danger to public health, property, or to the waterways of the United States is evident, prudent emergency actions are warranted until the responsible party provides action to mitigate the SSO. Upon arrival at a SSO, the first responder will:
• Determine the cause of the SSO, e.g. sewer line blockage, pipeline break, pump station mechanical or electrical failure;
• Call emergency services as required;
• Notify Spill Response Supervisor;
• Control public access to spill area; and
• If possible, take immediate steps to stop the overflow.

5.3 Spill Response Supervisor
The Spill Response Field Supervisor assumes primary management and coordination of all emergency activities and communicates with the Wastewater Reclamation Manager or Director. The supervisor will be responsible for the official spill volume estimate, coordinating spill control and cleanup efforts, and notifying the proper state, county and local regulatory agencies. The Spill Response Field Supervisor, or a designated City alternate, will fill out the Sewer Overflow Report Form (see Appendix A-1).

5.4 Water & Wastewater Superintendent
The Water & Wastewater Superintendent has the authority to approve the allocation of emergency response resources and liaises with the City’s Public Utilities Director. If necessary, supplementary external resources are engaged to aid in the SSO response. Contact details for these additional external resources can be located in Section 6.4 of the SSMP. 1194
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5.5 Industrial Pretreatment
The City’s Industrial Pretreatment team will assess the necessary sampling protocols during the evaluation and cleanup of the spill. The Coordinator will then commence an investigation into the origin and factors contributing to the SSO.

Industrial Pretreatment will assist as directed regarding regulatory reporting of the SSO event.

6. Notification Procedures
The Sewer Overflow Response Procedure presents a strategy to mobilize labor, materials, tools and equipment to rectify or address any condition that could potentially result in an unauthorized discharge. Overflows may be detected by City employees or members of the public (including businesses, residents, etc.), who may also report suspicious circumstances such as unusual odors or flooding, which could suggest the possibility of an overflow. The general flow of information is depicted in Appendix A-4.

During regular business hours, incoming calls received by the water/wastewater receptionist follow the routing outlined in Appendix A-4. However, calls received after business hours and on weekends are typically directed to the City police dispatch. The City police dispatch then relays the SSO information to the designated on-call wastewater staff. Subsequent information flow aligns with the process outlined in the flowchart in Appendix A-4.

Should the spill extend beyond the boundaries of the City's jurisdiction, efforts to contain and remediate the spill will persist. Nonetheless, the relevant agency will be promptly informed of the spill to ensure appropriate notifications are made and necessary actions are taken.

6.1 Notification to the California Office of Emergency Services This notification requirement applies specifically to individual spills of 1,000 gallons or more originating from City-owned and/or operated laterals that discharge into a water of the State.

Upon discovery of a spill that discharges into or onto any waters of the State or is deposited where it may enter any waters of the State, the City must promptly notify the California Office of Emergency Services (COES) and obtain a California Office of Emergency Services Control 1195
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Number. Notification must occur as soon as possible but no later than two (2) hours after the Enrollee becomes aware of the spill, provided that such notification does not significantly hinder cleanup efforts or other emergency measures.

The details necessary for COES notification align with the data to be entered into the SSO Report Form (AppendixA-1). Filling out this form will help outline the specifics needed as per the General Order Following the initial notification to COES and until such time that the City certifies the spill report in the online CIWQS Sanitary Sewer System Database, the City will provide updates to COES regarding substantial changes to:
• Estimates spill volume (increase or decrease in gallons initially estimated);
• Estimated discharge volume discharged directly into waters of the State or indirectly into a conveyance system (increase or decrease in gallons initially estimated); and
• Additional impact(s) to the receiving water(s) and beneficial uses.

Appendix A-3 provides summary of notification, monitoring and reporting requirements per the General Order.

6.2 Emergency Call Out Lists
The City maintains a Confidential Contact List that includes key personnel within the City as well as vendors that may be called on to assist in the SSO Response. The following list delineates key responders:
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CITY OF BANNING CONFIDENTIAL CONTACT LIST
Contractors
Merlin Johnson Construction, Inc.

Pipeline, Grading
Jake Johnson
P.O. Box 777
Mentone, CA 92359
Business: (909) 794-7702
Cell: (909) 322-6044
Legacy Excavating, Inc.

Pipeline
Christian Augusto
32425 Dunlap Blvd.

Yucaipa, CA 92399
Business (909) 795-0531
Cell: (909) 230-0921
Weaver Grading, Inc.

Grading
Mark Weaver
1177 Beaumont Ave.

Beaumont, CA 92223
Business: (951) 845-1222
Cell: (909) 578-8029
Center Electric Services, Inc.

Electric
Mike Munksgaard
3679 Van Buren Blvd.

Riverside, CA 92503
Business: (951) 688-6865
Cell: (951) 830-7411
Pump Rental
Xylem Water Solutions USA, Inc.

Jim Ruffing
11161 Harrel Street
Mira Loma, CA 91752
Business: (951) 332-3668
Cell: (562) 572-4738
Rain for Rent
Art Hunter
6400 Fisher Road
Riverside, CA 92507
Business: (951) 653-2171
Cell: (909) 772-1073
Sewer Line Inspections
Morr-is Tested
Jeff Cravens
19469 Via Del Caballo
Yorba Linda, CA 92886
Business: (714) 979-1573
Cell: (714) 713-3211
Environmental Compliance
G&G Environmental Compliance
Gary Ethridge
5053 La Mart Dr., Unit 203
Riverside, CA 92507
Business: (951) 683-3538
Cell: 858-1542
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7. Assessment, Containment, Traffic Control and Clean-up City employees are responsible for minimizing the effects of any SSO. The following sections provide guidance for the first responder and/or the SSO response supervisor in the event of a SSO.

7.1 Preliminary Assessment of Damage to Private/Public Property The first person at the scene gathers pertinent information and determines if the spill is an SSO. Next, the SSO classification (i.e., Category 1, 2, 3, 4 or private lateral) is determined. Regardless of the classification, all SSOs are managed uniformly. The primary objective is to promptly contain and remediate the area before the spill reaches a storm drain. Subsequently, documentation and reporting of the SSO become priorities. Alongside comprehensive reports, photographs are captured to document the spill and the containment and cleanup procedures employed. Upon receipt of a Sanitary Sewer Overflow (SSO) Report form, field notes are transcribed onto the form for official documentation.

7.2 Containment
After the initial assessment, all reasonable efforts will be made to contain the SSO (e.g., install plugs, sandbags, sand/rock, etc.)

7.3 Traffic and Crowd Control
The traffic and crowd control measures employed during SSO incidents can be summarized as follows:

Spills (less than 1,000 gallons)
A. Setup traffic cones to direct traffic from spill area.

B. Use staff personnel to control traffic and pedestrians.

Spills (1,000 to 10,000 gallons)
A. Contact Mutual Aid Contract cities as needed.

B. Perform lane closures as needed.

C. Close any affected entrances or exits from all public and private facilities.

D. Place proper signage for any lane closures including contaminated area signs.

E. Use caution tape and barricades to protect pedestrians from contaminated area.
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Spills (> 10,000 gallons)
A. Assess spill situation.

B. Contact Mutual Aid contract cities as needed.

C. Inform local police and sheriff’s department of any law enforcement needed road closures and traffic control.

D. Delegate the responsibilities to Mutual Aid team members to inform public of hazards also use signage to inform public of potential hazards to public health and safety.

E. Block public access to hazard using barricades, cones and caution tape.

8. Initial Estimates of Flow Volume
Initial assessments of flow volumes are conducted through onsite observations, relying on professional expertise and utilizing guidelines provided by reputable engineering firms and municipal agencies. The Best Practices Guidelines outlined in Appendix A-2 serve as a reference for making initial estimates of overflow volumes. Final figures are verified during cleanup and recovery operations, taking into account volumes returned to the sewer and estimations of unrecovered volumes.

9. Additional Measures for Prolonged SSO Conditions
For prolonged SSO conditions, a potable by-pass pump operation is established to circumvent any issues or obstructions, with contractors potentially enlisted if deemed necessary. Continuous or periodic monitoring of the by-pass pumping operation is implemented as needed.

10. Clean-up
Following an SSO event, thorough cleaning of the site(s) is required to remove any visible spill residue without causing unintended harm to the beneficial uses of receiving waters. The City’s SSO clean up procedure is outlined below:
• Where feasible, the area undergoes comprehensive flushing and cleansing to remove any sewerage, employing high-pressure water hoses or Combination trucks. Solids and debris are flushed, collected, and transported away for disposal, while all flush water is contained and gathered for appropriate disposal. It is imperative that wash water does not enter storm drains, further contaminating the storm drain system.
• The SSO site is secured to prevent contact by members of the public until the site has been thoroughly cleaned. If necessary, signs regarding public health and safety are posted in accordance with Section 6.18.1 of the SSMP. • The SSO site is disinfected using liquid bleach (sodium hypochlorite). Caution must be used to ensure that the disinfection chemicals used do not lead to or 1199
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cause violations of other NPDES Permit requirements concerning chlorine levels in waterways.
• To ensure proper disinfection, adequate contact time is implemented. • In instances where spilled sewage creates standing water (ponding), the sewage is pumped out and all remaining residues removed.
• If sewage has discharged into a body of water that may contain fish or other aquatic life, disinfection is not performed, and the appropriate agencies are contacted for further instructions.

11. Monitoring Procedures
The following subsections contain monitoring procedures in accordance with the General Order. Appendix A-3 provides summary of notification, monitoring and reporting requirements per the General Order.

11.1 Receiving Water Visual Observations
Through visual observations and use of best available spill volumeestimating techniques and field calculation techniques, the City will gather and document the following information for spills discharging to surface waters:
• Estimated spill travel time to the receiving water;
• For spills entering a drainage conveyance system, estimated spill travel time from the point of entry into the drainage conveyance system to the point of discharge into the receiving water;
• Estimated spill volume entering the receiving water; and • Photography of:
o Waterbody bank erosion,
o Floating matter,
o Water surface sheen (potentially from oil and grease), o Discoloration of receiving water, and
o Impact to the receiving water.

11.2 Receiving Water – Water Quality Sampling and Analysis For sewage spills in which an estimated 50,000 gallons or greater are discharged into a surface water, the Enrollee shall conduct the following water quality sampling no later than 18 hours after the Enrollee’s knowledge of a potential discharge to a surface water:
• Collect one water sample, each day of the duration of the spill, at:
o The DSC-001 location as described in section 11.3 (Receiving Water Sampling Locations), if sewage discharges to a surface water via a drainage conveyance system; and/or
o Each of the three receiving water sampling locations in section

11.3 (Receiving Water Sampling Locations);
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o If the receiving water has no flow during the duration of the spill, the City must report “No Sampling Due To No Flow” for its receiving water sampling locations.

The City shall analyze the collect receiving water samples for the following constituents per section 2.3.3 (Water Quality analysis Specifications) of Attachment E1 to General Order 2022-0103-DWQ:
• Ammonia, and
• Appropriate bacterial indicator(s) per the applicable Basin Plan water quality objectives, including one or more of the following, unless directed otherwise by the Regional Water Board:
o Total Coliform Bacteria
o Fecal Coliform Bacteria
o E-coli
o Enterococcus
Dependent on the receiving water(s), sampling of bacterial indicators shall be sufficient to determine post-spill compliance with the water quality objectives and bacterial standards of the California Ocean Plan or the California Inland Surface Water Enclosed Bays, and Estuaries Plan, including the frequency and/or number of post-spill receiving water samples as may be specified in the applicable plans.

11.3 Receiving Water Sampling Locations
The City shall collect receiving water samples at the following locations:

Sampling of Flow in Drainage Conveyance System (DCS) Prior to Discharge
Sampling
Location Sampling Location Description
DSC-001 A point in a drainage conveyance system before the drainage conveyance system flow discharges into a receiving water. 1201
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Receiving Surface Water Sampling (RSW)1
Sampling
Location Sampling Location Description
RSW-001 Point of
Discharge
A point in the receiving water where sewage initially enters the receiving water.

RSW-001U:

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

RSW-001D:

Downstream of
Point of Discharge
A point in the receiving water, downstream of the point of sewage discharge, where the spill material is fully mixed with the receiving water.
1 The City must use its best professional judgment to determine the upstream and downstream distances based on receiving water flow, accessibility to upstream/downstream waterbody banks, and size of visible sewage plume.

11.4 Ground (Non-Surface Water) SSO
SSOs to the ground that do not reach surface waters are monitored in accordance with any requirements stipulated by the RWQCB.

12. Private Property SSOs
The City will respond to all SSOs within their service area. If determined that a SSO originated from a sewer lateral or septic system on private property, the City will assist in the control and containment to ensure that the wastewater does not enter into storm drains, spillways, etc. The property owner will be informed of the blockage. The City will provide a copy of the Private Lateral Sewer Policy and notified of their responsibility to remove the blockage. If the SSO was a result of the sewer trunkline, the response crew will correct the problem. In each case, the City will report the spill in accordance with Section 6.8 of the SSMP.

13. Reporting Procedures
All reporting will be submitted electronically to the online CIWQS Sanitary Sewer System Database (https://ciwqs.waterboards.ca.gov), unless specified otherwise in the General Order. Electronic reporting will solely be conducted by a Legally Responsible Official or Data Submitter(s) previously designated by the Legally Responsible Official, as required in section 5.8 (Designation of Data Submitters) of the General Order.

Appendix A-3 contains a summary of notification, monitoring and reporting requirements per the General Order.
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13.1 Reporting of Individual Category 1 Spills
Within three (3) business days of the City’s knowledge of a Category 1 spill, the City will submit a Draft Spill Report to the online CIWQS Sanitary Sewer System Database. The Draft Spill Report will include the items outlined in section 3.1.1 of Attachment E-1 to the General order.

Within 15 calendar days of the spill end date, the City will submit a Certified Spill Report for Category 1 spill, to the online CIWQS Sanitary Sewer System Database. Upon completion of the Certified Spill Report, the online CIWQS Sanitary Sewer System Database will issue a final spill event identification number. The Certified Spill Report will include the items outlined in section 3.1.2 of Attachment E-1 to the General order.

For any spill in which 50,000 gallons or greater discharged into a surface water, within 45 calendar days of the spill end date, the City will submit a Spill Technical Report to the online CIWQS Sanitary Sewer System Database. The Spill Technical Report will include the information stipulated in section 3.1.3 of Attachment E-1 to the General order.

13.2 Reporting of Individual Category 2 Spills
Within three (3) business days of the City’s knowledge of a Category 2 spill, the City will submit a Draft Spill Report to the online CIWQS Sanitary Sewer System Database. The Draft Spill Report will include the items outlined in section 3.2.1 of Attachment E-1 to the General order.

Within 15 calendar days of the spill end date, the City will submit a Certified Spill Report for Category 2 spill, to the online CIWQS Sanitary Sewer System Database. Upon completion of the Certified Spill Report, the online CIWQS Sanitary Sewer System Database will issue a final spill event identification number. The Certified Spill Report will include the items outlined in section 3.2.2 of Attachment E-1 to the General order.

13.3 Reporting for Category 3 Spills
The City will report and certify all Category 3 spills to the online CIWQS Sanitary Sewer System Database within 30 calendar days after the end of the month in which the spills occurred. (For example, all Category 3 spills occurring in the month of February shall be reported and certified by March 30th). After the Legally Responsible Official certifies the spills, the online CIWQS Sanitary Sewer System Database will issue a spill event identification number for each spill. The monthly reporting of all Category 3 spills must include the items outlined in section 3.3 of Attachment E-1 to the General order.
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13.4 Reporting for Category 4 Spills
The City will report and certify the estimated total spill volume exiting the sanitary sewer system, and the total number of all Category 4 spills to the online CIWQS Sanitary Sewer System Database, within 30 calendar days after the end of the month in which the spills occurred.

For all Category 4 spills and spills from its owned and/or operated laterals that are caused by a failure or blockage in the lateral and that do not discharge to a surface water, the Enrollee will:
• Maintain records per section 4.4. of Attachment E-1 to the General Order; and
• Annually upload and certify a report, in an appropriate digital format, of all recordkeeping of spills to the online CIWQS Sanitary Sewer System Database, by February 1st after the end of the calendar year in which the spills occurred.

13.5 Amended Certified Spill Reports
Should The City need to amend a Certified Spill Report for Spill Categories 1-3, the City will do so within 90 calendar days of the spill end date by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database. The City will certify the amended report.

Should The City need to amend a Certified Spill Report after 90 calendar days of the spill end date, the City will contact the State Water Board at [email protected] to request to amend a Spill Report. The Legally Responsible Official will submit justification for why the additional information was not reported within the Amended Spill Report due date.

14. Electronic Reporting Procedures
Sanitary Sewer Overflows (SSOs) are reported electronically to the State Water Resources Control Board. Spill reports must be entered into the California Integrated Water Quality System (CIWQS), which can be found at https://ciwqs.waterboards.ca.gov/.
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Figure 17-1 CIWQS Log-in Screen Shot
Sign in using the login name and password that has been set up and assigned to identified wastewater plant management and staff. Once signed in, the next screen will look like Figure 14-2.

Figure 17-2 SSO Electronic Reporting CIWQS Menu Screen
From this menu, select “Modify Existing SSO”. The next screen will prompt the user to create either a new SSO report or Search for an existing SSO Report. Select Search and a Report similar to the one shown on the next page will be generated.

The CIWQS System will generate a listing of all reported SSOs with the SSO Event ID. The Event ID can be used to collect detailed information from each event.

California Integrated Water Quality System (CIWQS)
User ID:

Password:

Login
Contact Us
▪ Collection System Questionnaire ?
Pertinent information regarding your collection system. ▪ Sewer System Management Plan (SSMP) Certification ?
Certify SSMP completion/compliance
▪ Reporting New SSO ?
Report new SSO.
▪ Modifying Existing SSO ?
View/Modify existing SSO Report.
▪ View No Spill Certification ?
View no spill certification.
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15. Spill Report Debriefing
After the sewer spill has been mitigated and no more than one week after the incident, a spill-debriefing meeting should be held to discuss any problems encountered during each phase of the spill response procedure. All personnel involved with the incident are to attend and ensure the spill debriefing meeting presents an opportunity to correct any noted deficiencies and to better prepare for and respond to future SSOs.

16. Collection System Mapping
The City maintains maps of the collection systems and the storm drains as either a sewer atlas, updated on a regular basis, or electronically in the form of Geographic Information System (GIS). Utility maps are available via the City intranet.

Sewer Atlas maps are located at the Water & Wastewater Superintendent’s office and a copy is placed in each sewer collection vehicle.

17. Training
The Wastewater Collection staff will participate in an annual training session scheduled with appropriate staff in one of the three distinct types of training which would demonstrate the strengths/weaknesses of the SSO. The three distinct types of training exercises that the agencies will participate include:

Orientation Exercise: Exercise consisting of brief lecture; overview of the requirements; and past experiences. It will serve as a session to instruct employees on plan and required documentation.

Tabletop Exercise: SSO is simulated, without actual deployment of equipment or resources. Participants play through discussion and the use of a facilitator.

Exercise effectiveness is determined by the feedback from participants and impact on revisions to plans, procedures and systems.

Functional Full Scale Exercise: A spill event is simulated during the exercise.

Controllers monitor the play, and observers record the player’s actions. The exercise will provide opportunity to evaluate the plan’s objectives. It will also test equipment, response time, training, resource, and work force capabilities.

Records of training and event participation will be recorded and maintained. At this time, no certification requirements are required, but may be imposed later by the RWQCB.
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City of Banning SSMP 19 June 1, 2024

18. Public Advisory Procedure
All media inquiries will be directed to the City’s Public Information Officer or the position designated for this purpose by the City Manager.

18.1 Temporary Signage
In public accessed areas, signage and barriers must be in place for the duration of the cleanup and disinfection process. Signs warning the public of a sewage release should be posted in the affected area. Signs should include, at a minimum, the wording of “raw sewage” (See Figure 20-1).

Warning signs should remain posted until the Department of Environmental Health Division of Riverside County or RWQCB staff authorizes their removal, or until receiving water sample results indicate background levels (levels determined by upstream samples) have been attained. 1207
Spill Emergency Response Plan
City of Banning SSMP 20 June 1, 2024
Dan City of Banning
(951) 922-3260
Danger
“Raw Sewage”
Restricted
Area
Figure 20-1 Sewage Spill Sign

19. SERP Maintenance

19.1 Submittal and Availability of the SERP
The SERP does not have to be submitted to the State or Regional Board. The SERP must, however, be available for their review during routine inspections. As such, the SERP will be available at the City’s Utility Department in both hard copy and electronic versions.

19.2 Review and Update of SERP
The SERP is a dynamic document and will be reviewed and revised to reflect current policies and procedures as needed. The SERP will be reviewed each year.

The annual review of the plan will also ensure all provisions of the plan are being met and implemented. Any SERP deficiencies and updates will be identified and corrected. Any proposed changes to the SERP will be adequately communicated and reviewed. Changes become final when approved by the Director of Water and Wastewater.
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Spill Emergency Response Plan
City of Banning SSMP 21 June 1, 2024

20. Tracking SSOs
Sanitary Sewer Overflows (SSOs) are tracked using the same system that is used for electronic reporting (CIWQS) to the State Water Resources Control Board. (https://ciwqs.waterboards.ca.gov/).

Sign in using the login name and password that has been set up and assigned to identified wastewater plant management and staff.

The Summary Report is an excellent tool for looking at spill history at a glance that shows how many spills occurred during certain time frames; the volume of each spill; the location; and other important information that helps the city identify causes and history patterns that may serve as indictors for SSMP improvement opportunities. The following Report can be generated by going to the State Water Resources Control Board SSO Public Report web page at:
https://ciwqs.waterboards.ca.gov/ciwqs/readOnly/PublicReportSSOServlet?reportA ction=criteria&reportId=sso_overview.

Select SSO Report. Next, fill out the City or Zip Code and the time-period of interest.

Most tables on the CIWQS website can be saved as Excel Spreadsheets for further data analysis if necessary. The City will use the Reports for identifying deficiencies in the current program and for evaluating the best methods for improving the effectiveness of the SSMP.

Additionally, a “No-Spill Certification” Report can be generated that indicates all months where no SSO occurred. A sample copy of the No Spill Report Certification is shown in Figure 20-1.
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Spill Emergency Response Plan
City of Banning SSMP 22 June 1, 2024
No Spill Certification:

I certify under penalty of law that no spills occurred for the month specified below. 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 a fine or imprisonment, for knowing violations. Clicking the "Certify" button below indicates my certification of this report and my understanding of the above conditions.

Month/Year Without
Spills:*
- Select Month - - Select Year -
Confirmation
Number
No Spill
Certificate for
the Month of
Entered
Date/Time Certified By
482685 Jan-07 2007-2-

20.11.17. 53. 0 Perry Gerdes
803283 Oct-08 2008-11-

12.10.28. 18. 0 Perry Gerdes
801718 Sep-08 2008-10-

29.14.7. 26. 0 Perry Gerdes
762177 Apr-07 2008-6-12.8.17.

56. 0 Perry Gerdes
Previously Submitted Months with "No Spill Certification" Figure 22-1 No Spill Certification Report
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Spill Emergency Response Plan
City of Banning SSMP 23 June 1, 2024

APPENDICES
A-1 SSO Report Form
A-2 SSO Volume & Rate Estimate Calculations
A-3 Summary of Notification, Monitoring and Reporting
Requirements
A-4 Sewer Overflow Response Plan Flow Chart
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Spill Emergency Response Plan
City of Banning SSMP 24 June 1, 2024
Appendix A-1
Sanitary Sewer Overflow (SSO) Report Form
Use this form to enter sanitary sewer overflow data for submittal into the State Water Resources Control Board CIWQS SSO Online Database
(https://ciwqs.waterboards.ca.gov)

GENERAL INFORMATION
Name (person completing this form): Phone:

Spill location description (address, cross streets, or GPD coordinates):

SSO DETAILS & CLASSIFICATION
Spill was first discovered or reported to the City at: Date: Time: : am/pm Identify the SSO spill type (See State Order WQ 2022-0103-DWQ Section 5.13.1) and enter below:

Category 1 SSO – Spills of any volume that reach surface water or a drainage conveyance system when the sewage is not fully captured and returned to the sanitary sewer system
Category 2 SSO – Spills > than or = to 1,000 gallons that do not reach surface water Category 3 SSO – Spills > than 50 gallons but < than 1,000 gallons that do not reach surface water
Category 4 SSO – Spills less than 50 gallons that do not reach surface water Private Sewer Lateral (PSL) SSO – (See State Order WQ 2022-0103-DWQ Section

5.15 and 5.16)
Did any obstacles impede your response or assessment of the reported spill? ☐Yes ☐No (If yes, please describe (e.g., weather, traffic, communications, etc.) 1212
Spill Emergency Response Plan
City of Banning SSMP 25 June 1, 2024
SSO DETAILS & CLASSIFICATION (Continued)
Estimated spill start date/time: Date: Time: : am/pm
Estimated operator arrival date/time: Date: Time: : am/pm Estimated spill end date/time: Date: Time: : am/pm
☐Building/Structure ☐Street Curb/Gutter ☐Paved Surface ☐Unpaved Surface ☐Storm Drain ☐Surface Water ☐Drainage Channel
☐Storm Water Infiltration/Retention Structure/Field
☐ Other (specify):

Final spill destination (Check all that apply and attach photos of all areas checked):

Did the spill discharge to land? (Includes discharges directly to land, and discharges to a storm drain system or drainage channel that flows to a storm water infiltration/retention structure, field, or other non-surface water location) ☐Yes ☐No (Include photos as needed) • If Yes, estimated spill volume discharged to land: gallons • Estimated spill volume recovered from discharge to land: (Do not include water used for clean- up): Gallons Did the spill reach the storm drain? ☐Yes ☐No • If Yes, estimated spill volume that reached storm drain : gallons • Estimated spill volume recovered from storm drain: gallons Did the spill reach drainage channel? ☐Yes ☐No
• If Yes, estimated spill volume that reached discharge channel: gallons • Estimated spill volume recovered from drainage channel: gallons Did the spill reach surface waters? ☐Yes ☐No
• If Yes, estimated spill volume and the rate at which the spill reached surface waters:
gallons, gallons per minute
Methods used to estimate spill volumes (Check all that apply. Use Volume Estimation Forms to document spill dimensions, shapes, and other volume estimation information):
☐Eyeball Method ☐Calculations from Spill Dimensions ☐Duration and Flow Rate ☐Open Channel Spill Estimation ☐Drop Bucket Method ☐Calculations Based on Pipe Size ☐Flow from Vent or Pick Holes ☐Flow around Manhole Cover ☐Flow from Manhole w/o a Cover Spill estimated flow rate: gallons per minute Spill appearance point (Check all that apply):
☐Gravity Mainline ☐Inside Building or Structure ☐Manhole ☐Other Sewer System Structure (specify):

Spill cause (Check all that apply)
☐Debris - General ☐Debris – Rags ☐Root Intrusion ☐Debris from Construction 1213
Spill Emergency Response Plan
City of Banning SSMP 26 June 1, 2024
SSO DETAILS & CLASSIFICATION (Continued)
☐Construction Diversion Failure ☐Collection System Maintenance Caused Spill/Damage ☐Damage by Others Not Related to Collection System ☐ Other (specify)
Where did failure occur? (Check all that apply):
☐Gravity Mainline ☐Manhole ☐Inside Building or Structure ☐Other (specify):

Was this spill associated with a storm event? ☐Yes ☐No
Diameter of sewer pipe at the point of blockage or failure: inches

SSO ACTIONS & NOTIFICATIONS
Spill response activities (Check all that apply):
☐Cleaned-up ☐Contained All or Portion of Spill ☐Mitigated Effects of Spill ☐Restored Flow ☐Returned All of Spill to Sanitary Sewer System ☐Other Enforcement Agency Notified ☐Other (specify):

Spill Response Completion Date:

Spill corrective action taken: (Check all that apply):
☐Added Sewer to Preventive Maintenance Program
☐Adjusted Schedule/Method of Preventive Maintenance
☐Inspected Sewer Using CCTV to Determine Cause
☐Plan Rehabilitation or Replacement of Sewer
☐Repaired Facilities or Replaced Defect
☐Other (specify)
Cal OES NOTIFICATION REQUIREMENTS (As soon as possible but no later than 2 hours after knowledge of spill; and notification can be provided without impeding cleanup or emergency measures)
Cal OES Control Number (required for Spills > than or = 1,000 gallons):

Cal OES Called Date/Time (required for Spills > than or = 1,000 gallons):

Date: Time: : am/pm
Phone Numbers:
• Cal OES – (800) 852-7550 Fax: (916)845-8511
• Colorado River Basin Regional Water Quality Control Board - (760) 346-7491, FAX (760) 341-6820 • Riverside County Public Health Department - (888) 722-4234 • City of Banning (Director of Public Utilities) – (951) 922-3266 1214
Spill Emergency Response Plan
City of Banning SSMP 27 June 1, 2024
A-2
Spill Volume and Rate Estimate Calculations
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Spill Emergency Response Plan
City of Banning SSMP 28 June 1, 2024
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Spill Emergency Response Plan
City of Banning SSMP 29 June 1, 2024
1217
Spill Emergency Response Plan
City of Banning SSMP 30 June 1, 2024
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Spill Emergency Response Plan
City of Banning SSMP 31 June 1, 2024
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Spill Emergency Response Plan
City of Banning SSMP 32 June 1, 2024
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Spill Emergency Response Plan
City of Banning SSMP 33 June 1, 2024
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Spill Emergency Response Plan
City of Banning SSMP 34 June 1, 2024
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Spill Emergency Response Plan
City of Banning SSMP 35 June 1, 2024
APPENDIX A-3 – Summary of Notification, Monitoring and
Reporting Requirements
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City of Banning SSMP 36 June 1, 2024
Table A-3-1
Spill Category 1: Spills to Surface Waters
Spill
Requirements
Due Method
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 California Office of Emergency
Services and obtain a notification control
number.

California Office
of Emergency
Services:
(800) 852-7550
Monitoring
• Conduct spill-specific monitoring;
• Conduct water quality sampling of the
receiving water within 18 hours of initial
knowledge of spill of 50,000 gallons or greater
to surface waters.
(Section 2 of
Attachment E-1 to
the General Order)
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.
(Section 3.1 of
Attachment E1 to
the General Order)
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Spill Emergency Response Plan
City of Banning SSMP 37 June 1, 2024
Table A-3-2
Spill Category 2: Spills of 1,000 Gallons or Greater That Do Not Discharge to Surface Waters
Spill
Requirements
Due Method
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:
(800) 852-7550
Monitoring Conduct spill-specific monitoring.
(Section 2 of
Attachment E-1 to
the General Order)
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; and
• Submit Amended Spill Report within 90
calendar days after the spill end date.
(Section 3.2 of
Attachment E1 to
the General Order)
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Spill Emergency Response Plan
City of Banning SSMP 38 June 1, 2024
Table A-3-3
Spill Category 3: Spills of Equal or Greater than 50 Gallons and Less than 1,000 Gallons That Does Not Discharge to Surface Waters Spill
Requirements
Due Method
Notification Not Applicable Not Applicable
Monitoring Conduct spill-specific monitoring.
(Section 2 of
Attachment E-1 to
the General Order)
Reporting
• 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.
(Section 3.3 and

3.5 of Attachment
E1 to the General
Order)
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City of Banning SSMP 39 June 1, 2024
Table A-3-4
Spill Category 4: Spills Less Than 50 Gallons That Do Not Discharge to Surface Waters
Spill
Requirements Due Method
Notification Not Applicable Not Applicable
Monitoring Conduct spill-specific monitoring.
(Section 2 of
Attachment E-1 to
the General Order)
Reporting
• If, 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 1st after the end of the
calendar year in which the spills occur.
(Section 3.4, 3.6,

3.7 and 4.4 of
Attachment E1 to
the General Order)
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City of Banning SSMP 40 June 1, 2024
Table A-3-5
Enrollee Owned and/or Operated Lateral Spills That Do Not Discharge to Surface Waters
Spill
Requirements Due Method
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 to 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
(Section 1 of
Attachment E1to
the General Order)
Monitoring Conduct visual monitoring.
(Section 2 of
Attachment E-1 to
the General Order)
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 1
spill.
(Section 3.6, 3.7
and 4.4 of
Attachment E1 to
the General Order)
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Spill Emergency Response Plan
City of Banning SSMP 41 June 1, 2024
APPENDIX A-4 – Spill Emergency Response Plan
Flow Diagram
1229
City of Banning SSMP 42 June 1, 2024
1230
APPENDIX A-5 – General Order Attachment E-1
1231
ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING

AND RECORDKEEPING REQUIREMENTS
Table of Contents

1. Notification Requirements.........................................................................................................E1-3

1.1. Notification of Spills of 1,000 Gallons or Greater to the California Office of Emergency Services.........................................................................................................................E1-3

1.2. Spill Notification Information.......................................................................................E1-4

1.3. Notification of Spill Report Updates.............................................................................E1-4

2. Spill-Specific Monitoring Requirements...................................................................................E1-5

2.1 Spill Location and Spread .............................................................................................E1-5

2.2 Spill Volume Estimation ...............................................................................................E1-5

2.3. Receiving Water Monitoring.........................................................................................E1-5

2.4. Safety and Access Exceptions.......................................................................................E1-8

3. Reporting Requirements............................................................................................................E1-8

3.1. Reporting Requirements for Individual Category 1 Spill Reporting.............................E1-8

3.2. Reporting Requirements for Individual Category 2 Spill Reporting...........................E1-12

3.3. Monthly Certified Spill Reporting for Category 3 Spills.............................................E1-14

3.4. Monthly Certified Spill Reporting for Category 4 Spills.............................................E1-16

3.5. Amended Certified Spill Reports for Category 3 Spills..............................................E1-16

3.6. Annual Certified Spill Reporting of Category 4 and/or Lateral Spills........................E1-16

3.7. Monthly Certification of “No-Spills” or “Category 4 Spills” and/or “Non-Category 1 Lateral Spills” .............................................................................................................E1-16

3.8. Electronic Sanitary Sewer System Service Area Boundary Map................................E1-17

3.9. Annual Report (Previously termed as Collection System Questionnaire in General Order 2006-0003-DWQ).......................................................................................................E1-17

3.10. Sewer System Management Plan Audit Reporting Requirements..............................E1-19

3.11. Sewer System Management Plan Reporting Requirements.........................................E1-19

4. Recordkeeping Requirements..................................................................................................E1-20

4.1. Recordkeeping Time Period........................................................................................E1-20

4.2. Availability of Documents..........................................................................................E1-20

4.3. Spill Reports................................................................................................................E1-20

4.4. Recordkeeping of Category 4 Spills and Non-Category 1 Lateral Spills....................E1-21

4.5. Sewer System Telemetry Records...............................................................................E1-22

4.6. Sewer System Management Plan Implementation Records........................................E1-22

4.7. Audit Records..............................................................................................................E1-23 1232

4.8. Equipment Records.....................................................................................................E1-23

4.9. Work Orders................................................................................................................E1-23 1233
ATTACHMENT E1– NOTIFICATION, MONITORING, REPORTING AND RECORDKEEPING

REQUIREMENTS
The Notification Requirements (section 1), Spill-specific Monitoring Requirements (section 2), Reporting Requirements (section 3) and Recordkeeping Requirements (section 4) in this Attachment are pursuant to Water Code section 13267 and section 13383, and are an enforceable component of this General Order. For the purpose of this General Order, the term:
• Notification means the notifying of appropriate parties of a spill event or other activity. • Spill-specific Monitoring means the gathering of information and data for a specific spill event to be reported or kept as records.
• Reporting means the reporting of information and data into the online California Integrated Water Quality System (CIWQS) Sanitary Sewer System Database.
• Recordkeeping means the maintaining of information and data in an official records storage system.

Failure to comply with the notification, monitoring, reporting and recordkeeping requirements in this General Order may subject the Enrollee to civil liabilities of up to $10,000 a day per violation pursuant to Water Code section 13385; up to $1,000 a day per violation pursuant to Water Code section 13268; or referral to the Attorney General for judicial civil enforcement.

Water Code section 13193 et seq. requires the Regional Water Quality Control Boards (Regional Water Boards) and the State Water Resources Control Board (State Water Board) to collect sanitary sewer spill information for each spill event and make this information available to the public. Sanitary sewer spill information for each spill event includes but is not limited to: Enrollee contact information for each spill event, spill cause, estimated spill volume and factors used for estimation, location, date, time, duration, amount discharged to waters of the State, response and corrective action(s) taken.

1. NOTIFICATION REQUIREMENTS

1.1. 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 Enrollee 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:
• The Enrollee has knowledge of the spill; and
• 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. 1234

1.2. Spill Notification Information
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;
• Spill incident description:
o Brief narrative of the spill event, and
o Spill incident location (address, city, and zip code) and closest cross streets and/or landmarks;
• 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);
• Amount of spill contained;
• Name of receiving water body receiving or potentially receiving discharge; and • Description of water body impact and/ or potential impact to beneficial uses.

1.3. 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 the 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. 1235

2. SPILL-SPECIFIC MONITORING REQUIREMENTS

2.1 Spill Location and Spread
The Enrollee shall visually assess the spill location(s) and spread using photography, global positioning system (GPS), and other best available tools. The Enrollee shall document the critical spill locations, including:
• Photography and GPS coordinates for:
o The system location where spill originated.

For multiple appearance points of a single spill event, the points closest to the spill origin.
• Photography for:
o Drainage conveyance system entry locations,
o The location(s) of discharge into surface waters, as applicable, o Extent of spill spread, and
o The location(s) of clean up.

2.2 Spill Volume Estimation
To assess the approximate spill magnitude and spread, the Enrollee shall estimate the total spill volume using updated volume estimation techniques, calculations, and documentation for electronic reporting. The Enrollee shall update its notification and reporting of estimated spill volume (which includes spill volume recovered) as further information is gathered during and after a spill event.

2.3. Receiving Water Monitoring

2.3.1. Receiving Water Visual Observations
Through visual observations and use of best available spill volume-estimating techniques and field calculation techniques, the Enrollee shall gather and document the following information for spills discharging to surface waters:
• Estimated spill travel time to the receiving water;
• For spills entering a drainage conveyance system, estimated spill travel time from the point of entry into the drainage conveyance system to the point of discharge into the receiving water;
• Estimated spill volume entering the receiving water; and • Photography of:
o Waterbody bank erosion,
o Floating matter,
o Water surface sheen (potentially from oil and grease), 1236
o Discoloration of receiving water, and
o Impact to the receiving water.

2.3.2. Receiving Water – Water Quality Sampling and Analysis For sewage spills in which an estimated 50,000 gallons or greater are discharged into a surface water, the Enrollee shall conduct the following water quality sampling no later than 18 hours after the Enrollee’s knowledge of a potential discharge to a surface water:
• Collect one water sample, each day of the duration of the spill, at:
o The DCS-001 location as described in section 2.3.4 (Receiving Water Sampling Locations) of this Attachment, if sewage discharges to a surface water via a drainage conveyance system; and/or
o Each of the three receiving water sampling locations in section 2.3.4 (Receiving Water Sampling Locations) of this Attachment;
If the receiving water has no flow during the duration of the spill, the Enrollee must report “No Sampling Due To No Flow” for its receiving water sampling locations.

The Enrollee shall analyze the collected receiving water samples for the following constituents per section 2.3.3 (Water Quality Analysis Specifications) of this Attachment:
• Ammonia, and
• Appropriate bacterial indicator(s) per the applicable Basin Plan water quality objectives, including one or more of the following, unless directed otherwise by the Regional Water Board:
o Total Coliform Bacteria
o Fecal Coliform Bacteria
o E-coli
o Enterococcus
Dependent on the receiving water(s), sampling of bacterial indicators shall be sufficient to determine post-spill (after the spill) compliance with the water quality objectives and bacterial standards of the California Ocean Plan or the California Inland Surface Water Enclosed Bays, and Estuaries Plan, including the frequency and/or number of post-spill receiving water samples as may be specified in the applicable plans.

The Enrollee shall collect and analyze additional samples as required by the applicable Regional Water Board Executive Officer or designee.
1237

2.3.3. Water Quality Analysis Specifications
Spill monitoring must be representative of the monitored activity (40 Code of Federal Regulations section 122.41(j)(1)).

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

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

2.3.4. Receiving Water Sampling Locations
The Enrollee shall collect receiving water samples at the following locations.

20.1 Sampling of Flow in Drainage Conveyance System (DCS) Prior to Discharge
Sampling
Location Sampling Location Description
DCS-001 A point in a drainage conveyance system before the drainage conveyance system flow discharges into a receiving water.

Receiving Surface Water Sampling (RSW)1
Sampling
Location Sampling Location Description
RSW-001
Point of Discharge
A point in the receiving water where sewage initially enters the receiving water.

RSW-001U:

Upstream of Point
of Discharge
A point in the receiving water, upstream of the point of sewage discharge, to capture ambient conditions absent of sewage discharge impacts.
1238
Sampling
Location Sampling Location Description
RSW-001D:

Downstream of
Point of Discharge
A point in the receiving water, downstream of the point of sewage discharge, where the spill material is fully mixed with the receiving water.
1 The Enrollee must use its best professional judgment to determine the upstream and downstream distances based on receiving water flow, accessibility to upstream/downstream waterbody banks, and size of visible sewage plume.

2.4. Safety and Access Exceptions
If the Enrollee encounters access restrictions or unsafe conditions that prevents its compliance with spill response requirements or monitoring requirements in this General Order, the Enrollee shall provide documentation of access restrictions and/or safety hazards in the corresponding required report.

3. REPORTING REQUIREMENTS
All reporting required in this General Order must be submitted electronically to the online CIWQS Sanitary Sewer System Database (https://ciwqs.waterboards.ca.gov), unless specified otherwise in this General Order. Electronic reporting may solely be conducted by a Legally Responsible Official or Data Submitter(s) previously designated by the Legally Responsible Official, as required in section 5.8 (Designation of Data Submitters) of this General Order.

The Enrollee shall report any information that is protected by the Homeland Security Act, by email to [email protected], with a brief explanation of the protection provided by the Homeland Security Act for the subject report to be protected from unauthorized disclosure and/or public access, and for official Water Board regulatory purposes only.

3.1. Reporting Requirements for Individual Category 1 Spill Reporting

3.1.1. Draft Spill Report for Category 1 Spills
Within three (3) business days of the Enrollee’s knowledge of a Category 1 spill, the Enrollee shall submit a Draft Spill Report to the online CIWQS Sanitary Sewer System Database.

The Draft Spill Report must, at minimum, include the following items:

1. Contact information: Name and telephone number of Enrollee contact person to respond to spill-specific questions;

2. Spill location name;

3. Date and time the Enrollee was notified of, or self-discovered, the spill;

4. Operator arrival time;
1239

5. Estimated spill start date and time;

6. Date and time the Enrollee notified the California Office of Emergency Services, and the assigned control number;

7. Description, photographs, and GPS coordinates of the system location where the spill originated;
o If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;

8. Estimated total spill volume exiting the system;

9. Description and photographs of the extent of the spill and spill boundaries;

10. Did the spill reach a drainage conveyance system? If Yes:
o Description of the drainage conveyance system transporting the spill; o Photographs of the drainage conveyance system entry location(s); o Estimated spill volume fully recovered from the drainage conveyance system; o Estimated spill volume remaining within the drainage conveyance system;

11. Description and photographs of all discharge point(s) into the surface water;

12. Estimated spill volume that discharged to surface waters; and

13. Estimated total spill volume recovered.

3.1.2. Certified Spill Report for Category 1 Spills
Within 15 calendar days of the spill end date, the Enrollee shall submit a Certified Spill Report for Category 1 spills, to the online CIWQS Sanitary Sewer System Database.

Upon completion of the Certified Spill Report, the online CIWQS Sanitary Sewer System Database will issue a final spill event identification number.

The Certified Spill Report must, at minimum, include the following mandatory information in addition to all information in the Draft Spill Report per section 3.1.1 (Draft Spill Report for Category 1 Spills) above:

1. Description of the spill event destination(s), including GPS coordinates if available, that represent the full spread and reach of the spill;

2. Spill end date and time;

3. Description of how the spill volume estimations were calculated, including at a minimum:
o The methodology, assumptions and type of data relied upon, such as supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and
o The methodology(ies), assumptions and type of data relied upon for estimations of the spill start time and the spill end time;
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4. Spill cause(s) (for example, root intrusion, grease deposition, etc.);

5. System failure location (for example, main, lateral, pump station, etc.);

6. Description of the pipe material, and estimated age of the pipe material, at the failure location;

7. Description of the impact of the spill;

8. Whether or not the spill was associated with a storm event;

9. Description of spill response activities including description of immediate spill containment and cleanup efforts;

10. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps;

11. Spill response completion date;

12. Detailed narrative of investigation and investigation findings of cause of spill;

13. Reasons for an ongoing investigation (as applicable) and the expected date of completion;

14. Name and type of receiving water body(s);

15.Description of the water body(s), including but not limited to:
o Observed impacts on aquatic life,
o Public closure, restricted public access, temporary restricted use, and/or posted health warnings due to spill,
o Responsible entity for closing/restricting use of water body, and o Number of days closed/restricted as a result of the spill.

16.Whether or not the spill was located within 1,000 feet of a municipal surface water intake; and

17. If water quality samples were collected, identify sample locations and the parameters the water quality samples were analyzed for. If no samples were taken, Not Applicable shall be selected.

3.1.3. Spill Technical Report for Individual Category 1 Spill in which 50,000 Gallons or Greater Discharged into a Surface Water For any spill in which 50,000 gallons or greater discharged into a surface water, within 45 calendar days of the spill end date, the Enrollee shall submit a Spill Technical Report to the online CIWQS Sanitary Sewer System Database. The Spill Technical Report, at minimum, must include the following information:

1. Spill causes and circumstances, including at minimum:
o Complete and detailed explanation of how and when the spill was discovered; 1241
o Photographs illustrating the spill origin, the extent and reach of the spill, drainage conveyance system entrance and exit, receiving water, and post-cleanup site conditions; o Diagram showing the spill failure point, appearance point(s), the spill flow path, and ultimate destinations;
o Detailed description of the methodology employed, and available data used to calculate the discharge volume and, if applicable, the recovered spill volume; o Detailed description of the spill cause(s);
o Description of the pipe material, and estimated age of the pipe material, at the failure location;
o Description of the impact of the spill;
o Copy of original field crew records used to document the spill; and o Historical maintenance records for the failure location.

2. Enrollee’s response to the spill:
o Chronological narrative description of all actions taken by the Enrollee to terminate the spill;
o Explanation of how the Sewer System Management Plan Spill Emergency Response Plan was implemented to respond to and mitigate the spill; and o Final corrective action(s) completed and a schedule for planned corrective actions, including:
▪ Local regulatory enforcement action taken against an illicit discharge in response to this spill, as applicable,
▪ Identifiable system modifications, and operation and maintenance program modifications needed to prevent repeated spill occurrences, and ▪ Necessary modifications to the Emergency Spill Response Plan to incorporate lessons learned in responding to and mitigating the spill.

3. Water Quality Monitoring, including at minimum:
o Description of all water quality sampling activities conducted; o List of pollutant and parameters monitored, sampled and analyzed; as required in section

2.3 (Receiving Water Monitoring) of this Attachment;
o Laboratory results, including laboratory reports;
o Detailed location map illustrating all water quality sampling points; and o Other regulatory agencies receiving sample results (if applicable).

4. Evaluation of spill impact(s), including a description of short-term and long-term impact(s) to beneficial uses of the surface water.
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3.1.4. Amended Certified Spill Reports for Individual Category 1 Spills The Enrollee shall update or add additional information to a Certified Spill Report within 90 calendar days of the spill end date by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database.

The Enrollee shall certify the amended report.

After 90 calendar days, the Enrollee shall contact the State Water Board at [email protected] to request to amend a Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the Amended Spill Report due date.

3.2. Reporting Requirements for Individual Category 2 Spill Reporting

3.2.1. Draft Spill Report for Category 2 Spills
Within three (3) business days of the Enrollee’s knowledge of a Category 2 spill, the Enrollee shall submit a Draft Spill Report to the online CIWQS Sanitary Sewer System Database.

The Draft Spill Report must, at minimum, include the following items:

1. Contact information: Name and telephone number of Enrollee contact person to respond to spill-specific questions;

2. Spill location name;

3. Date and time the Enrollee was notified of, or self-discovered, the spill;

4. Operator arrival time;

5. Estimated spill start date and time;

6. Date and time the Enrollee notified the California Office of Emergency Services, and the assigned control number;

7. Description, photographs, and GPS coordinates of the system location where the spill originated;
If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;

8. Estimated total spill volume exiting the system;

9. Description and photographs of the extent of the spill and spill boundaries;

10. Did the spill reach a drainage conveyance system? If Yes:
o Description of the drainage conveyance system transporting the spill; o Photographs of the drainage conveyance system entry location(s); o Estimated spill volume fully recovered from the drainage conveyance system; o Estimated spill volume remaining within the drainage conveyance system; 1243
o Estimated spill volume discharged to a groundwater infiltration basin or facility, if applicable; and

11. Estimated total spill volume recovered.

3.2.2. Certified Spill Report for Category 2 Spills
Within 15 calendar days of the spill end date, the Enrollee shall submit a Certified Spill Report for the Category 2 spill, to the online CIWQS Sanitary Sewer System Database (https://ciwqs.waterboards.ca.gov). Upon completion of the Certified Spill Report, the online CIWQS Sanitary Sewer System Database will issue a final spill event identification number.

The Certified Spill Report must, at minimum, include the following mandatory information in addition to all information in the Draft Spill Report per section 3.2.1 (Draft Spill Report for Category 2 Spills) above:

1. Description of the spill event destination(s), including GPS coordinates if available, that represent the full spread and reach of the spill;

2. Spill end date and time;

3. Description of how the spill volume estimations were calculated, including at a minimum:
o The methodology, assumptions and type of data relied upon, such as supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and
o The methodology(ies), assumptions and type of data relied upon for estimations of the spill start time and the spill end time;

4. Spill cause(s) (for example, root intrusion, grease deposition, etc.);

5. System failure location (for example, main, pump station, etc.);

6. Description of the pipe/infrastructure material, and estimated age of the pipe material, at the failure location;

7. Description of the impact of the spill;

8. Whether or not the spill was associated with a storm event;

9. Description of spill response activities including description of immediate spill containment and cleanup efforts;

10. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps;

11. Spill response completion date;

12. Detailed narrative of investigation and investigation findings of cause of spill;

13. Reasons for an ongoing investigation (as applicable) and the expected date of completion; and
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14. Whether or not the spill was located within 1,000 feet of a municipal surface water intake.

3.2.3. Amended Certified Spill Reports for Individual Category 2 Spills The Enrollee shall update or add additional information to a Certified Spill Report within 90 calendar days of the spill end date by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database.

The Enrollee shall certify the amended report.

After 90 calendar days, the Enrollee shall contact the State Water Board at [email protected] to request to amend a Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the Amended Spill Report due date.

3.3. Monthly Certified Spill Reporting for Category 3 Spills The Enrollee shall report and certify all Category 3 spills to the online CIWQS Sanitary Sewer System Database within 30 calendar days after the end of the month in which the spills occurred. (For example, all Category 3 spills occurring in the month of February shall be reported and certified by March 30th). After the Legally Responsible Official certifies the spills, the online CIWQS Sanitary Sewer System Database will issue a spill event identification number for each spill.

The monthly reporting of all Category 3 spills must include the following items for each spill:

1. Contact information: Name and telephone number of Enrollee contact person to respond to spill-specific questions;

2. Spill location name;

3. Date and time the Enrollee was notified of, or self-discovered, the spill;

4. Operator arrival time;

5. Estimated spill start date and time;

6. Description, photographs, and GPS coordinates where the spill originated:
o If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;

7. Estimated total spill volume exiting the system;

8. Description and photographs of the extent of the spill and spill boundaries;

9. Did the spill reach a drainage conveyance system? If Yes:
o Description of the drainage conveyance system transporting the spill; o Photographs of the drainage conveyance system entry locations(s); o Estimated spill volume fully recovered from the drainage conveyance system; and 1245
o Estimated spill volume discharged to a groundwater infiltration basis or facility, if applicable.

10. Estimated total spill volume recovered;

11. Description of the spill event destination(s), including GPS coordinates, if available, that represent the full spread and reaches of the spill;

12. Spill end date and time;

13. Description of how the spill volume estimations were calculated, including, at minimum:
o The methodology and type of data relied upon, including supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and
o The methodology and type of data relied upon to estimate the spill start time, ongoing spill rate at time of arrival (if applicable), and the spill end time;

14. Spill cause(s) (for example, root intrusion, grease deposition, etc.);

15. System failure location (for example, main, pump station, etc.);

16. Description of the pipe/infrastructure material, and estimated age of the pipe/infrastructure material, at the failure location;

17. Description of the impact of the spill;

18. Whether or not the spill was associated with a storm event;

19. Description of spill response activities including description of immediate spill containment and cleanup efforts;

20. Description of spill corrective actions, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of the major milestones for those steps; including, at minimum:
o Local regulatory enforcement action taken against an illicit discharge in response to this spill, as applicable, and
o Identifiable system modifications, and operation and maintenance program modifications needed to prevent repeated spill occurrences at the same spill event location, including:
▪ Adjusted schedule/method of preventive maintenance,
▪ Planned rehabilitation or replacement of sanitary sewer asset, ▪ Inspected, repaired asset(s), or replaced defective asset(s), ▪ Capital improvements,
▪ Documentation verifying immediately implemented system modifications and operating/maintenance modifications,
▪ Description of spill response activities,
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▪ Spill response completion date, and
▪ Ongoing investigation efforts, and expected completion date of investigation to determine the full cause of spill;

21. Detailed narrative of investigation and investigation findings of cause of spill.

3.4. Monthly Certified Spill Reporting for Category 4 Spills The Enrollee shall report and certify the estimated total spill volume exiting the sanitary sewer system, and the total number of all Category 4 spills to the online CIWQS Sanitary Sewer System Database, within 30 calendar days after the end of the month in which the spills occurred.

3.5. Amended Certified Spill Reports for Category 3 Spills Within 90 calendar days of the certified Spill Report due date, the Enrollee may update or add additional information to a certified Spill Report by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database. The Enrollee shall certify the amended report.

After 90 calendar days, the Legally Responsible Official shall contact the State Water Board at [email protected] to request to amend a certified Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the 90-day timeframe for amending the certified Spill Report, as provided above.

3.6. Annual Certified Spill Reporting of Category 4 and/or Lateral Spills For all Category 4 spills and spills from its owned and/or operated laterals that are caused by a failure or blockage in the lateral and that do not discharge to a surface water, the Enrollee shall:
• Maintain records per section 4.4. of this Attachment; The Enrollee shall provide records upon request by State Water Board or Regional Water Board staff.
• Annually upload and certify a report, in an appropriate digital format, of all recordkeeping of spills to the online CIWQS Sanitary Sewer System Database, by February 1st after the end of the calendar year in which the spills occurred.

A spill from an Enrollee-owned and/or operated lateral that discharges to a surface water is a Category 1 spill; the Enrollee shall report all Category 1 spills per section 3.1 of Attachment E1 (Notification, Monitoring, Reporting and Recordkeeping Requirements) of this General Order.

3.7. Monthly Certification of “No-Spills” or “Category 4 Spills” and/or “Non-Category 1 Lateral Spills”
If either (1) no spills occur during a calendar month or (2) only Category 4, and/or Enrollee-owned and/or operated lateral spills (that do not discharge to a surface water) occur during a calendar month, the Enrollee shall certify, within 30 calendar days after 1247
the end of each calendar month, either a “No-Spill” certification statement, or a “Category 4 Spills” and/or “Non-Category 1 Lateral Spills” certification statement, in the online CIWQS Sanitary Sewer System Database, certifying that there were either no spills, or Category 4 and/or Non-Category 1 Lateral Spills that will be reported annually (per section 3.6 of this Attachment) for the designated month.

If a spill starts in one calendar month and ends in a subsequent calendar month, and the Enrollee has no further spills of any category, in the subsequent calendar month, the Enrollee shall certify “no-spills” for the subsequent calendar month.

If the Enrollee has no spills from its systems during a calendar month, but the Enrollee voluntarily reported a spill from a private lateral or a private system, the Enrollee shall certify “no-spills” for that calendar month.

If the Enrollees has spills from its owned and/or operated laterals during a calendar month, the Enrollee shall not certify “no spills” for that calendar month.

3.8. Electronic Sanitary Sewer System Service Area Boundary Map The Legally Responsible Official shall submit, to the State Water Board, an up-to-date electronic spatial map of its sewer system service area boundaries. The map must be in accordance with section 5.14 (Electronic Sanitary Sewer System Service Area Boundary Map) of this General Order and the specification provided on the statewide Sanitary Sewer Systems program website. The map must include the location of wastewater treatment facility(ies) that treats the sewer system waste, if in the same sewer service boundary.

By the Effective Date of this General Order, specifications for the electronic sanitary sewer service area boundary map format will be provided on the statewide Sanitary Sewer Systems Order program website.

3.9. Annual Report (Previously termed as Collection System Questionnaire in General Order 2006-0003-DWQ)
A new Enrollee shall complete and submit its first certified Annual Report into the online CIWQS Sanitary Sewer System Database, within 30 days of obtaining a CIWQS account; Subsequent Annual Reports are due by April 1 of each year.

All enrollees shall update their previous year’s Annual Report, by April 1 of each year after the Effective Date of this General Order, for each calendar year (January 1 through December 31).

The Annual Report must be entered directly into the online CIWQS Sanitary Sewer System Database. The Enrollee’s Legally Responsible Official shall certify the Annual Report as instructed in CIWQS;
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The Annual Report must address, and update as applicable, the following items:
• Population served;Updated sewer system service area boundary map, if service area boundary has changed from original map submitted per section 5.14 (Electronic Sanitary Sewer System Service Area Boundary Map) of this General Order; • Number of system operation and maintenance staff:
o Entry level (less than two years of experience),
o Journey level (greater than two years of experience), o Supervisory level, and
o Managerial level;
• Number of operation and maintenance staff certified as a certified collection system operator by the California Water Environmental Association (CWEA), with:
o Corresponding number of certified collection system operator grade levels (Grade I, II, III, IV, and V);
• System information:
o Miles of system gravity and force mains,
o Number of upper and lower service laterals connected to system, o Estimated number of upper and lower laterals owned and/or operated by the Enrollee,
o Portion of laterals that is Enrollee’s responsibility, o Average age the major components of system infrastructure, o Number and age of pump stations, and
o Estimated total miles of the system pipeline not accessible for maintenance; • Name and location of the treatment plant(s) receiving sanitary sewer system’s waste; • Name of satellite sewer system tributaries;
• Number of system’s gravity sewer above or underground crossings of water bodies throughout system;
• Number of force main (pressurized pipe) above or underground crossings of water bodies throughout system;
• Number of siphons used to convey waste throughout the sewer system; • Miles of sewer system cleaned;
• Miles of sewer system video inspected, or comparable (i.e., video closed-circuit television or alternative inspection methods);
• System Performance Evaluation as specified in section 5.11 (System Performance Analysis) of this General Order;
• Major spill causes (for example, root intrusion, grease deposition); 1249
• System infrastructure failure points (for example, main, pump station, lateral, etc.); • Ongoing spill investigations; and
• Actions taken to address system deficiencies.

3.10. Sewer System Management Plan Audit Reporting Requirements The Enrollee shall submit its Sewer System Management Plan Audit and other pertinent audit information, in accordance with section 5.4 (Sewer System Management Plan Audits) of this General Order, to the online CIWQS Sanitary Sewer System Database by six (6) months after the end of the 3-year audit period.

If a Sewer System Management Plan Audit is not conducted as required: the Enrollee shall:
• Update the online CIWQS Sanitary Sewer System Database and select the justification for not conducting the Audit; and
• Notify its corresponding Regional Water Board (see Attachment F (Regional Water Quality Control Board Contact Information)) of the justification for the lapsed requirements.

The Enrollee’s reporting of a justification for not conducting a timely Audit does not justify non-compliance with this General Order. The Enrollee shall:
• Submit the late Audit as required in this General Order; and • Comply with subsequent Audit requirements and due dates corresponding with the original audit cycle.

3.11. Sewer System Management Plan Reporting Requirements For an Existing Enrollee previously regulated by Order 2006-0003-DWQ: Within every six (6) years after the required due date of its last Plan Update, the Legally Responsible Official shall upload and certify a local governing entity-approved Sewer System Management Plan Update to the online CIWQS Sanitary Sewer System Database. If the electronic document format or size capacity prevents the electronic upload of the Plan, the Legally Responsible Official shall report an electronic link to its updated Sewer System Management Plan posted on its own website.

Order 2006-0003-DWQ required each enrollee to develop its initial Sewer System Management Plan per the following schedule, with required Plan updates at a frequency of 5-years thereafter:

Systems serving populations: Greater than 100,000: May 2, 2009 Between 100,000 and 10,000: August 2, 2009
Between 10,000 and 2,500: May 2, 2010
Less than 2,500: August 2, 2010
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This Order carries forth the previously-required Plan Update schedule per Order 2006- 0003-DWQ. Per the six-year Plan Update frequency required in this Order, the Enrollee shall upload and certify its first Plan Update, to the online CIWQS Sanitary Sewer System Database by the following due dates, with subsequent Plan Updates at the frequency of six years thereafter:

Systems serving populations: Greater than 100,000: May 2, 2025 Between 100,000 and 10,000: August 2, 2025
Between 10,000 and 2,500: May 2, 2026
Less than 2,500: August 2, 2026
For a New Enrollee: Within twelve (12) months of its Application for Enrollment Approval date, the Legally Responsible Official of a new Enrollee shall upload and certify a local governing entity-approved Sewer System Management Plan to the online CIWQS Sanitary Sewer System Database. If electronic document format or size capacity prevents the electronic upload of the Plan, the Legally Responsible Official shall report an electronic link to its Sewer System Management Plan posted on its own website. The due date for subsequent 6-year Plan updates, is six (6) years from the submittal due date of the new Enrollee’s first Sewer System Management Plan.

4. RECORDKEEPING REQUIREMENTS
The Enrollee shall maintain records to document compliance with the provisions of this General Order, and previous General Order 2006-0003-DWQ as applicable, for each sanitary sewer system owned, including any required records generated by an Enrollee’s contractor(s).

4.1. Recordkeeping Time Period
The Enrollee shall maintain records of documents required in this Attachment, including records collected for compliance with this General Order, and records collected in accordance with previous General Order 2006-0003-DWQ, for five (5) years.

4.2. Availability of Documents
The Enrollee shall make the records required in this General Order readily available, either electronic or hard copies, for review by Water Board staff during onsite inspections or through an information request.

4.3. Spill Reports
The Enrollee shall maintain records for each of the following spill-related events and activities:
• Spill event complaint, including but not limited to records documenting how the Enrollee responded to notifications of spills. Each complaint record must, at a minimum, include the following information:
o Date, time, and method of notification,
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o Date and time the complainant first noticed the spill, if available, o Narrative description of the complaint, including any information the caller provided regarding whether the spill has reached surface waters or a drainage conveyance system, if available,
o Complainant’s contact information, if available, and
o Final resolution of the complaint;
• Records documenting the steps and/or remedial action(s) undertaken by the Enrollee, using all available information, to comply with this General Order, and previous General Order 2006-0003-DWQ as applicable;
• Records documenting how estimate(s) of volume(s) and, if applicable, volume(s) of spill recovered were calculated;
• All California Office of Emergency Services notification records, as applicable; and • Records, in accordance with the Monitoring Requirements in this Attachment.

4.4. Recordkeeping of Category 4 Spills and Non-Category 1 Lateral Spills An Enrollee must maintain the following records for each individual Category 4 spill and for each individual non-Category 1 Enrollee-owned and/or operated lateral spill, and report in accordance to section 3.6 (Annual Certified Spill Reporting of Category 4 and/or Lateral Spills) of this Attachment.

Recordkeeping of Individual Category 4 Spill Information:

1. Contact information: Name and telephone number of Enrollee contact person to respond to spill-specific questions;

2. Spill location name;

3. Description and GPS coordinates for the system location where the spill originated;

4. Did the spill reach a drainage conveyance system? If Yes:
o Description of drainage conveyance system location,
o Estimated spill volume fully recovered within the drainage conveyance system, and o Estimated spill volume remaining within the drainage conveyance system;

5. Estimated total spill volume exiting the sanitary sewer system;

6. Spill date and start time;

7. Spill cause(s) (for example, root intrusion, grease deposition, etc.);

8. System failure location (for example, main, pump station, etc.);

9. Description of spill response activities including description of immediate spill containment and cleanup efforts;

10. Description of how the volume estimation was calculated, including, at minimum:
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o The methodology and type of data relied upon, including supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and
o The methodology and type of data relied upon to estimate the spill start time, on- going spill rate at time of arrival (if applicable), and the spill end time;

11. Description of implemented system modifications and operating/maintenance modifications.

Recordkeeping of Individual Lateral Spill Information:

1. Date and time the Enrollee was notified of, or self-discovered, the spill;

2. Location of individual spill;

3. Estimated individual spill volume;

4. Spill cause(s) (for example, root intrusion, grease deposition, etc.); and

5. Description of how the volume estimations were calculated.

Total Annual Spill Information:

1. Estimated total annual spill volume;

2. Description of spill corrective actions, including at minimum:
o Local regulatory enforcement action taken against the sewer lateral owner in response to a spill, as applicable, and
o System operation, maintenance and program modifications implemented to prevent repeated spill occurrences at the same spill location.

4.5. Sewer System Telemetry Records
The Enrollee shall maintain the following sewer system telemetry records if used to document compliance with this General Order, and previous General Order 2006-0003- DWQ as applicable, including spill volume estimates:
• Supervisory control and data acquisition (SCADA) system(s); • Alarm system(s);
• Flow monitoring device(s) or other instrument(s) used to estimate sewage flow rates, and/or volumes;
• Computerized maintenance management system records; and • Asset management-related records.
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4.6. Sewer System Management Plan Implementation Records The Enrollee shall maintain records documenting the Enrollee’s implementation of its Sewer System Management Plan, including documents supporting its Sewer System Management Plan audits, corrections, modifications, and updates to the Sewer System Management Plan Audit Records
The Enrollee shall maintain, at minimum, the following records pertaining to its Sewer System Management Plan audits, and other internal audits:
• Completed audit documents and findings;
• Name and contact information of staff and/or consultants that conducted or involved in the audit; and
• Follow-up actions based on audit findings.

4.7. Equipment Records
The Enrollee shall maintain a log of all owned and leased sewer system cleaning, operational, maintenance, construction, and rehabilitation equipment.

4.8. Work Orders
The Enrollee shall maintain record of work orders for operations and maintenance projects.
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ATTACHMENT E2 – SUMMARY OF NOTIFICATION, MONITORING

AND REPORTING REQUIREMENTS
This Attachment provides a summary of notification, monitoring and reporting requirements, by spill category, and for Enrollee-owned and/or operated laterals as required in Attachment E1 of this General Order, for quick reference purposes only.

Table E2-1
Spill Category 1: Spills to Surface Waters
Spill
Requirement Due Method
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 California Office of Emergency Services
and obtain a notification control number.

California Office
of Emergency
Services at:
(800) 852-7550
(Section 1 of
Attachment E1)
Monitoring
• Conduct spill-specific monitoring;
• Conduct water quality sampling of the receiving
water within 18 hours of initial knowledge of spill of
50,000 gallons or greater to surface waters.
(Section 2 of
Attachment E1)
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.
(Section 3.1 of
Attachment E1)
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Table E2-2
Spill Category 2: Spills of 1,000 Gallons or Greater That Do Not Discharge to Surface Waters Spill
Requirements Due Method
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
(Section 1 of
Attachment E1)
Monitoring Conduct spill-specific monitoring. (Section 2 of Attachment E1)
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; and
• Submit Amended Spill Report within 90 calendar
days after the spill end date.
(Section 3.2 of
Attachment E1)
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Table E2-3
Spill Category 3: Spills of Equal or Greater than 50 Gallons and Less than 1,000 Gallons That Does Not Discharge to Surface Waters
Spill
Requirements Due Method
Notification Not Applicable Not Applicable
Monitoring Conduct spill-specific monitoring. (Section 2 of Attachment E1)
Reporting
• 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.
(Section 3.3 and 3.5
of Attachment E1)
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Table E2-4
Spill Category 4: Spills Less Than 50 Gallons That Do Not Discharge to Surface Waters Spill
Requirements Due Method
Notification Not Applicable Not Applicable
Monitoring Conduct spill-specific monitoring. (Section 2 of Attachment E1)
Reporting
• If, 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 1st
after the end of the calendar year in which the
spills occur.
(Section 3.4, 3.6, 3.7
and 4.4 of Attachment
E1)
1258
Appendix F
SSMP Change Log
Change
Number Date Section Description of Change
Reason for
Change
Approved
By
Date
Approved
001 5/14/2024 6.0 Updated Spill
Emergency
Response Plan
(SERP)
Reflect Order
No. 2022-0103-
DWQ
requirements
Perry
Gerdes
7/2/24
002 5/20/2024 1.0 Update Goal and
Introduction
Reflect Order
No. 2022-0103-
DWQ
requirements
Perry
Gerdes
7/1/24
003 6/14/24 2.0 Update
Organization
Reflect Order
No. 2022-0103-
DWQ
requirements
Perry
Gerdes
7/1/24
004 6/14/24 3.0 Update Legal
Authority
Reflect Order
No. 2022-0103-
DWQ
requirements
Perry
Gerdes
7/1/24
005 6/14/24 7.0 Update Sewer
Pipe Blockage
Control Program
Reflect Order
No. 2022-0103-
DWQ
requirements
Perry
Gerdes
7/1/24
006 6/14/24 9.0 Update
Monitoring,
Measurement
and Program
Modifications
Reflect Order
No. 2022-0103-
DWQ
requirements
Perry
Gerdes
7/1/24
007 6/14/24 10.0 Update Internal
Audits
Reflect Order
No. 2022-0103-
DWQ
requirements
Perry
Gerdes
7/1/24
008 6/14/24 11.0 Update
Communication
Program
Reflect Order
No. 2022-0103-
DWQ
requirements
Perry
Gerdes
7/1/24
009 6/26/24 4.0 Updated
Operation and
Maintenance
Program
Reflect Order
No. 2022-0103-
DWQ
requirements
Perry
Gerdes
7/1/24
010 7/2/24 5.0 Updated
Communication
Program
Reflect Order
No. 2022-0103-
DWQ
requirements
Perry
Gerdes
7/2/24
011 7/2/24 8.0 Updated System
Evaluation,
Capacity
Reflect Order
No. 2022-0103-
Perry
Gerdes
7/2/4/24
1259
Assurance and
Capital
Improvements
DWQ
requirements
1260
1 STATE WATER RESOURCES CONTROL BOARD
1001 I Street, Sacramento, California 95814
ORDER WQ 2022-0103-DWQ

STATEWIDE WASTE DISCHARGE REQUIREMENTS

GENERAL ORDER FOR SANITARY SEWER SYSTEMS
This Order was adopted by the State Water Resources Control Board on December 6, 2022.

This Order shall become effective 180 days after the Adoption Date of this General Order, on June 5, 2023.

The Enrollee shall comply with the requirements of this Order upon the Effective Date of this General Order.

This General Order does not convey any property rights of any sort or any exclusive privileges.

The requirements prescribed herein do not authorize the commission of any act causing injury to persons or property, protect the Enrollee from liability under federal, state, or local laws, nor create a vested right for the Enrollee to continue the discharge of waste.

CERTIFICATION
I, Jeanine Townsend, Clerk to the Board, do hereby certify that this Order with all attachments is a full, true, and correct copy of the Order adopted by the State Water Board on December 6, 2022.

AYE: Chair E. Joaquin Esquivel
Vice Chair Dorene D’Adamo
Board Member Sean Maguire
Board Member Laurel Firestone
Board Member Nichole Morgan
NAY: None
ABSENT: None
ABSTAIN: None
for
Jeanine Townsend
Clerk to the Board
1261

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER
ORDER 2022-0103-DWQ December 6, 2022
2 Table of Contents

1. Introduction .................................................................................................................... 4

2. Regulatory Coverage and Application Requirements .................................................... 5

2.1. Requirements for Continuation of Existing Regulatory Coverage ....................... 5

2.2. Requirements for New Regulatory Coverage...................................................... 5

2.3. Regulatory Coverage Transfer............................................................................ 7

3. Findings ......................................................................................................................... 7

3.1. Legal Authorities ................................................................................................. 7

3.2. General ............................................................................................................. 11

3.3. Water Quality Control Plans, Policies and Resolutions ..................................... 14

3.4. California Environmental Quality Act................................................................. 16

3.5. State Water Board Funding Assistance for Compliance with Water Board Water Quality Orders ................................................................................................... 16

3.6. Notification to Interested Parties ....................................................................... 17

4. Prohibitions .................................................................................................................. 17

4.1 Discharge of Sewage from a Sanitary Sewer System....................................... 17

4.2. Discharge of Sewage to Waters of the State..................................................... 17

4.3. Discharge of Sewage Creating a Nuisance....................................................... 18

5. Specifications............................................................................................................... 18

5.1. Designation of a Legally Responsible Official ................................................... 18

5.2. Sewer System Management Plan Development and Implementation............... 18

5.3. Certification of Sewer System Management Plan and Plan Updates................ 19

5.4. Sewer System Management Plan Audits .......................................................... 19

5.5. Six-Year Sewer System Management Plan Update.......................................... 21

5.6. System Resilience............................................................................................. 22

5.7. Allocation of Resources .................................................................................... 22

5.8. Designation of Data Submitters......................................................................... 22

5.9. Reporting Certification....................................................................................... 22

5.10. System Capacity ............................................................................................... 23

5.11. System Performance Analysis .......................................................................... 23

5.12. Spill Emergency Response Plan and Remedial Actions ................................... 23

5.13. Notification, Monitoring, Reporting and Recordkeeping Requirements ............. 24

5.14. Electronic Sanitary Sewer System Service Area Boundary Map....................... 26

5.15. Voluntary Reporting of Spills from Privately-Owned Sewer Laterals and/or Private Sanitary Sewer Systems ................................................................................... 26

5.16. Voluntary Notification of Spills from Privately-Owned Laterals and/or Systems to the California Office of Emergency Services ..................................................... 27

5.17. Unintended Failure to Report ............................................................................ 27 1262

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER
ORDER 2022-0103-DWQ December 6, 2022
3 5.18. Duty to Report to Water Boards ........................................................................ 27

5.19. Operation and Maintenance............................................................................... 27

6. Provisions .................................................................................................................... 27

6.1. Enforcement Provisions .................................................................................... 27

6.2. Other Regional Water Board Orders ................................................................. 30

6.3. Sewer System Management Plan Availability ................................................... 31

6.4. Entry and Inspection ......................................................................................... 31 Table of Attachments
Attachment A – Definitions .....................................................................................................A-1 Attachment B – Application for Enrollment .............................................................................B-1 Attachment C - Notice of Termination.....................................................................................C-1 Attachment D – Sewer System Management Plan – Required Elements ..............................D-1 Attachment E1 – Notification, Monitoring, Reporting and Recordkeeping Requirements .....E1-1 Attachment E2 – Summary of Notification, Monitoring and Reporting Requirements...........E2-1 Attachment F – Regional Water Quality Control Board Contact Information ..........................F-1 1263

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER
ORDER 2022-0103-DWQ December 6, 2022
4 1. INTRODUCTION
This General Order regulates sanitary sewer systems designed to convey sewage. For the purpose of this Order, a sanitary sewer system includes, but is not limited to, pipes, valves, pump stations, manholes, siphons, wet wells, diversion structures and/or other pertinent infrastructure, upstream of a wastewater treatment plant headworks. A sanitary sewer system includes:
• Laterals owned and/or operated by the Enrollee;
• Satellite sewer systems; and/or
• Temporary conveyance and storage facilities, including but not limited to temporary piping, vaults, construction trenches, wet wells, impoundments, tanks and diversion structures.

Sewage is untreated or partially treated domestic, municipal, commercial and/or industrial waste (including sewage sludge), and any mixture of these wastes with inflow or infiltration of stormwater or groundwater, conveyed in a sanitary sewer system.

Sewage contains high levels of suspended solids, non-digested organic waste, pathogenic bacteria, viruses, toxic pollutants, nutrients, oxygen-demanding organic compounds, oils, grease, pharmaceuticals, and other harmful pollutants.

For the purpose of this General Order, a spill is a discharge of sewage from any portion of a sanitary sewer system due to a sanitary sewer system overflow, operational failure, and/or infrastructure failure. Sewage and its associated wastewater spilled from a sanitary sewer system may threaten public health, beneficial uses of waters of the State, and the environment.

This General Order serves as statewide waste discharge requirements and supersedes the previous State Water Resources Control Board (State Water Board) Order 2006-0003-DWQ and amendments thereafter. All sections and attachments of this General Order are enforceable by the State Water Board and Regional Water Quality Control Boards (Regional Water Boards). Through this General Order, the State Water Board requires an Enrollee to:
• Comply with federal and state prohibitions of discharge of sewage to waters of the State, including federal waters of the United States;
• Comply with specifications, and notification, monitoring, reporting and recordkeeping requirements in this General Order that implement the federal Clean Water Act, the California Water Code (Water Code), water quality control plans (including Regional Water Board Basin Plans) and policies;
• Proactively operate and maintain resilient sanitary sewer systems to prevent spills; • Eliminate discharges of sewage to waters of the State through effective implementation of a Sewer System Management Plan;
• Monitor, track, and analyze spills for ongoing system-specific performance improvements; and
• Report noncompliance with this General Order per reporting requirements. 1264

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER
ORDER 2022-0103-DWQ December 6, 2022
5 An Enrollee is a public, private, or other non-governmental entity that has obtained approval for regulatory coverage under this General Order, including:
• A state agency, municipality, special district, or other public entity that owns and/or operates one or more sanitary sewer systems:
o greater than one (1) mile in length (each individual sanitary sewer system); o one (1) mile or less in length where the State Water Board or a Regional Water Board requires regulatory coverage under this Order; or • A federal agency, private company, or other non-governmental entity that owns and/or operates a sanitary sewer system of any size where the State Water Board or a Regional Water Board requires regulatory coverage under this Order in response to a history of spills, proximity to surface water, or other factors supporting regulatory coverage.

For the purpose of this Order, a sanitary sewer system includes only systems owned and/or operated by the Enrollee.

2. REGULATORY COVERAGE AND APPLICATION REQUIREMENTS

2.1. Requirements for Continuation of Existing Regulatory Coverage To continue regulatory coverage from previous Order 2006-0003-DWQ under this General Order, within the 60-days-prior-to the Effective Date of this General Order, the Legally Responsible Official of an existing Enrollee shall electronically certify the Continuation of Existing Regulatory Coverage form in the online California Integrated Water Quality System (CIWQS) Sanitary Sewer System Database. The Legally Responsible Official will receive an automated CIWQS-issued Notice of Applicability email, confirming continuation of regulatory coverage under this General Order. All regulatory coverage under previous Order 2006-0003-DWQ will cease on the Effective Date of this Order.

An Enrollee continuing existing regulatory coverage is not required to submit a new application package or pay an application fee for enrollment under this General Order.

The annual fee due date for continued regulatory coverage from previous Order 2006-0003-DWQ to this General Order remains unchanged.

A previous Enrollee of Order 2006-0003-DWQ that fails to certify the Continuation of Existing Regulatory Coverage form in the online CIWQS database by the Effective Date of this Order is considered a New Applicant, and will not have regulatory coverage for its sanitary sewer system(s) until:
• A new application package for system(s) enrollment is submitted per section 2.2 (Requirements for New Regulatory Coverage) below; and
• The new application package is approved per section 2.2.2 (Approval of Application Package (For New Applicants Only)).

2.2. Requirements for New Regulatory Coverage
No later than 60 days prior to commencing and/or assuming operation and maintenance responsibilities of a sanitary sewer system, a duly authorized representative that 1265

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER
ORDER 2022-0103-DWQ December 6, 2022
6 maintains legal authority over the public or private sanitary sewer system is required to enroll under this General Order by submitting a complete application package as specified below and as provided in Attachment B (Application for Enrollment Form) of this General Order.

Unless required by a Regional Water Board, a public agency that owns a combined sewer system subject to the Combined Sewer Overflow Control Policy (33 U.S. Code § 1342(q)), is not required to enroll, under this Order, the portions of its sanitary sewer system(s) that collects combined sanitary wastewater and stormwater.

2.2.1. Application Package Requirements
The Application for Enrollment package for new applicants must include the following items:
• Application for Enrollment Form. The form in Attachment B of this General Order must be completed, signed, and certified by a Legally Responsible Official, in accordance with section 5.1 (Designation of a Legally Responsible Official) of this General Order. If an electronic Application for Enrollment form is available at the time of application, a new applicant shall submit its application form electronically; and
• Application Fee. A fee payable to the “State Water Resources Control Board” in accordance with the Fee Schedule in the California Code of Regulations, Title 23, section 2200, or subsequent fee regulations updates.

The application fee for this General Order is based on the sanitary sewer system’s threat to water quality and complexity designations of category 2C or 3C, which is assigned based on the population served by the system. The current Fee Schedule for sanitary sewer systems is listed under subdivision (a)(2) at the following website:

Fee Schedule (https://www.waterboards.ca.gov/resources/fees/water_quality/).

2.2.2. Approval of Application Package (For New Applicants Only) The Deputy Director of the State Water Board, Division of Water Quality (Deputy Director) will consider approval of each complete Application for Enrollment package.

The Deputy Director will issue a Notice of Applicability letter which serves as approved regulatory coverage for the new Enrollee.

If the submitted application package is not complete in accordance with section 2.2.1 (Application Package Requirements) of this General Order, the Deputy Director will send a response letter to the applicant outlining the application deficiencies. The applicant will have 60 days from the date of the response letter to correct the application deficiencies and submit the identified items necessary to complete the application package to the State Water Board.

2.2.3. Electronic Reporting Account for New Enrollee
Within 30 days after the date of the Approval of Complete Application Package for System Enrollment, a duly authorized representative for the Enrollee shall obtain a CIWQS Sanitary Sewer System Database user account by clicking the “User Registration” button and following the directions on the CIWQS Login Page 1266

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER
ORDER 2022-0103-DWQ December 6, 2022
7 (https://ciwqs.waterboards.ca.gov). If additional assistance is needed to establish an online CIWQS user account, contact State Water Board staff by email at [email protected]. The online user account will provide the Enrollee secure access to the online CIWQS database for electronic reporting.

2.3. Regulatory Coverage Transfer
Regulatory coverage under this General Order is not transferable to any person or party except after an existing Enrollee submits a written request for a regulatory coverage transfer to the Deputy Director, at least 60 days in advance of any proposed system ownership transfer. The written request must include a written agreement between the existing Enrollee and the new Enrollee containing:
• Acknowledgement that the transfer of ownership is solely of an existing system with an existing waste discharge identification (WDID) number; • The specific ownership transfer date in which the responsibility and regulatory coverage transfer between the existing Enrollee and the new Enrollee becomes effective; and
• Acknowledgement that the existing Enrollee is liable for violations occurring up to the ownership transfer date and that the new Enrollee is liable for violations occurring on and after the ownership transfer date.

The Deputy Director will consider approval of the written request. If approved, the Deputy Director will issue a Notice of Applicability letter which serves as an approved transfer of regulatory coverage to the new Enrollee.

3. FINDINGS

3.1. Legal Authorities

3.1.1. Federal and State Regulatory Authority
The objective of the Clean Water Act is to restore and maintain the chemical, physical, and biological integrity of the waters of the United States (33 U.S.C. 1251). The Water Code authorizes the State Water Board to implement the Clean Water Act in the State and to protect the quality of all waters of the State (Water Code sections 13000 and 13160).

3.1.2. Discharge of Sewage
A discharge of untreated or partially treated sewage is a discharge of waste as defined in Water Code section 13050(d) that could affect the quality of waters of the State and is subject to regulation by waste discharge requirements issued pursuant to Water Code section 13263 and Chapter 9, Division 3, Title 23 of the California Code of Regulations.

A discharge of sewage may pollute and alter the quality of the waters of the State to a degree that unreasonably affects the beneficial uses of the receiving water body or facilities that serve those beneficial uses (Water Code section 13050(l)(1)). 1267

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER
ORDER 2022-0103-DWQ December 6, 2022
8 3.1.3 Water Boards Authority to Require Technical Reports, Monitoring, and Reporting Water Code sections 13267 and 13383 authorize the Regional Water Boards and the State Water Board to establish monitoring, inspection, entry, reporting, and recordkeeping requirements. Water Code section 13267(b), authorizes the Regional Water Boards to “require any person who has discharged, discharges, or is suspected of having discharged or discharging, or who proposes to discharge waste within its region… or is suspected of having discharged or discharging, or who proposes to discharge, waste outside of its region that could affect the quality of water within its region shall furnish, under penalty of perjury, technical or monitoring reports which the regional board requires…In requiring those reports, the regional board shall provide the person with a written explanation with regard to the need for the reports and shall identify the evidence that supports requiring that person to provide the reports.” Water Code section 13267(f) authorizes the State Water Board to require this information if it consults with the Regional Water Boards and determines that it will not duplicate the efforts of the Regional Water Boards. The State Water Board has consulted with the Regional Water Boards and made this determination.

The technical and monitoring reports required by this General Order and Attachment E (Notification, Monitoring, Reporting and Recordkeeping Requirements) are necessary to evaluate and ensure compliance with this General Order. The effort to develop required technical reports will vary depending on the system size and complexity and the needs of the specific technical report. The burden and cost of these reports are reasonable and consistent with the interest of the state in protecting water quality, which is the primary purpose of requiring the reports.

Water Code section 13383(a) authorizes the Water Boards to “establish monitoring, inspection, entry, reporting, and recordkeeping requirements… for any person who discharges, or proposes to discharge, to navigable waters, any person who introduces pollutants into a publicly owned treatment works, any person who owns or operates, or proposes to own or operate, a publicly owned treatment works or other treatment works treating domestic sewage, or any person who uses or disposes, or proposes to use or dispose, of sewage sludge.” Section 13383(b) continues, “the state board or the regional boards may require any person subject to this section to establish and maintain monitoring equipment or methods, including, where appropriate, biological monitoring methods, sample effluent as prescribed, and provide other information as may be reasonably required.”
Reporting of spills from privately owned sewer laterals and systems pursuant to section

5.15 (Voluntary Reporting of Spills from Privately-Owned Sewer Laterals and/or Private Sanitary Sewer Systems) of this General Order is authorized by Water Code section 13225(c) and encouraged by the State Water Board, wherein a local agency may investigate and report on any technical factors involved in water quality control provided the burden including costs of such reports bears a reasonable relationship to the need for the report and the benefits to be obtained therefrom. The burden of reporting private spills under section 5.15 (Voluntary Reporting of Spills from Privately-Owned Sewer Laterals and/or Private Sanitary Sewer Systems) is minimal and is outweighed by the benefit of providing Regional Water Boards an opportunity to respond to these spills 1268

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER
ORDER 2022-0103-DWQ December 6, 2022
9 when an Enrollee, which in many cases has a contractual relationship with the owner of the private system, has knowledge of the spills.

3.1.4. Water Board Authority to Prescribe General Waste Discharge Requirements Water Code section 13263(i) provides that the State Water Board may prescribe general waste discharge requirements for a category of discharges if the State Water Board finds or determines that:
• The discharges are produced by the same or similar operations; • The discharges involve the same or similar types of waste; • The discharges require the same or similar treatment standards; and • The discharges are more appropriately regulated under general waste discharge requirements than individual waste discharge requirements.

Since 2006, the State Water Board has been regulating over 1,100 publicly owned sanitary sewer systems (See section 3.1.5 (Previous Statewide General Waste Discharge Requirements) of this General Order). California also has a large unknown number of unregulated privately owned sanitary sewer systems. All waste conveyed in publicly owned and privately owned sanitary sewer systems (as defined in this General Order) is comprised of untreated or partially treated domestic waste and/or industrial waste. Generally, sanitary sewer systems are designed and operated to convey waste by gravity or under pressure; system-specific design elements and system-specific operations do not change the common nature of the waste, the common threat to public health, or the common impacts on water quality. Spills of waste from a sanitary sewer system prior to reaching the ultimate downstream treatment facility are unauthorized and enforceable by the State Water Board and/or a Regional Water Board. Therefore, spills from sanitary sewer systems are more appropriately regulated under general waste discharge requirements.

As specified in Water Code sections 13263(a) and 13241, the implementation of requirements set forth in this Order is for the reasonable protection of past, present, and probable future beneficial uses of water and the prevention of nuisance. The requirements implement the water quality control plans (Basin Plans) for each Regional Water Board and take into account the environmental characteristics of sewer service areas and hydrographic units within the state. Additionally, the State Water Board has considered water quality conditions that could reasonably be achieved through the coordinated control of all factors that affect water quality, costs associated with compliance with these requirements, the need for developing housing within California, and the need to protect sources of drinking water and other water supplies.

3.1.5. Previous Statewide General Waste Discharge Requirements On May 2, 2006, the State Water Board adopted Order 2006-0003-DWQ serving as Waste Discharge Requirements pursuant to Article 4, Chapter 4, Division 7 of the Water Code (commencing with section 13260) for inadvertent discharges to waters of the State. Order 2006-0003-DWQ prohibited discharges of untreated or partially treated sewage. Order 2006-0003-DWQ also required system-specific management, operation, and maintenance of publicly owned sewer systems greater than one mile in length. 1269

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER
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10 To decrease the impacts on human health and the environment caused by sewage spills, the previous Order required enrollees to develop a rehabilitation and replacement plan that identifies system deficiencies and prioritizes short-term and long-term rehabilitation actions. The previous Order also required enrollees to:

1. Maintain information that can be used to establish and prioritize appropriate Sewer System Management Plan activities; and

2. Implement a proactive approach to reduce spills.

The previous Order required Sewer System Management Plan elements for “the proper and efficient management, operation, and maintenance of sanitary sewer systems, while taking into consideration risk management.”
On July 30, 2013, the State Water Board amended General Order 2006-0003-DWQ with Order WQ 2013-0058-EXEC, Amending Monitoring and Reporting Program for Statewide General Waste Discharge Requirements for Sanitary Sewer Systems.

Many enrollees of Order 2006-0003-DWQ have already implemented proactive measures to reduce sewage spills. Other enrollees, however, still need technical assistance and funding to improve sanitary sewer system operation and maintenance for the reduction of sewage spills.

3.1.6. Existing Memorandum of Agreement with California Water Environment Association
The California Water Environment Association is a nonprofit organization dedicated to providing water industry certifications, training, and networking opportunities. The Association’s Technical Certification Program provides accredited sanitary sewer system operator certification for collection system operators and maintenance workers.

On February 10, 2016, the State Water Board entered into a collaborative agreement with the Association titled Memorandum of Agreement Between the California State Water Resources Control Board and the California Water Environment Association - Training Regarding Requirements Set Forth in Statewide General Waste Discharge Requirements for Sanitary Sewer Systems. The Memorandum sets forth collaborative training necessary for regulated sanitary sewer system personnel to operate and maintain a well operating system and ensure full compliance with statewide sewer system regulations.

On March 15, 2018, the State Water Board and the California Water Environment Association amended the existing Memorandum of Agreement to include collaborative outreach and expand training needs associated with further updates to Water Board regulations for sanitary sewer systems. The State Water Board encourages further Agreement updates as necessary to support improved sewer system operations and the professionalism of collection system operators.
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11 3.2. General

3.2.1. Waters of the State
Waters of the State include any surface water or groundwater, including saline waters, within the boundaries of the state as defined in Water Code section 13050(e), and are inclusive of waters of the United States.

3.2.2. Sanitary Sewer System Spill Threats to Public Health and Beneficial Uses Sewage contains high levels of suspended solids, pathogenic organisms, toxic pollutants, nutrients, oxygen-demanding organic compounds, oil and grease and other pollutants. Sewage spills may cause a public nuisance, particularly when sewage is discharged to areas with high public exposure such as streets and surface waters used for drinking, irrigation, fishing, recreation, or other public consumption or contact uses.

More specifically, sanitary sewer spills may:
• Adversely affect aquatic life and/or threaten water quality when reaching receiving waters;
• Inadvertently release trash, including plastics;
• Impair the recreational use and aesthetic enjoyment of surface waters by polluting surface water or groundwater;
• Threaten public health through direct public exposure to bacteria, viruses, intestinal parasites, and other microorganisms that can cause serious illness such as gastroenteritis, hepatitis, cryptosporidiosis, and giardiasis; • Negatively impact ecological receptors and biota within surface waters; and • Cause nuisance including odors, closure of beaches and recreational areas, and property damage.

Sanitary sewer system spills may pollute receiving waters and threaten beneficial uses of surface water and groundwater. Potentially threatened beneficial uses include, but are not limited to the following (with associated acronym representations as included in statewide water quality control plans and Regional Water Boards’ Basin Plans):
• Municipal and Domestic Supply (MUN)
• Water Contact Recreation (REC-1) and Non-Contact Water Recreation (REC-2) • Cold Freshwater Habitat (COLD)
• Warm Freshwater Habitat (WARM)
• Native American Culture (CUL)
• Wildlife Habitat (WILD)
• Rare, Threatened, or Endangered Species (RARE)
• Spawning, Reproduction, and/or Early Development (SPWN) • Wetland Habitat (WET)
• Agricultural Supply (AGR)
• Estuarine Habitat (EST)
1271

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER
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12 • Commercial and Sport Fishing (COMM)
• Subsistence Fishing (SUB)
• Tribal Tradition and Culture (CUL)
• Tribal Subsistence Fishing (T-SUB)
• Aquaculture (AQUA)
• Marine Habitat (MAR)
• Preservation of Biological Habitats of Special Significance (BIOL) • Migration of Aquatic Organisms (MIGR)
• Shellfish Harvesting (SHELL)
• Industrial Process Supply (PROC)
• Industrial Service Supply (IND)
• Hydropower Generation (POW)
• Navigation (NAV)
• Flood Peak Attenuation/Flood Water Storage (FLD)
• Water Quality Enhancement (WQE)
• Fresh Water Replenishment (FRSH)
• Groundwater Recharge (GWR)
• Inland Saline Water Habitat (SAL)

3.2.3. Proactive Sanitary Sewer System Management to Eliminate Spill Causes Finding 3 of the previous Order, 2006-0003-DWQ, states: “Sanitary sewer systems experience periodic failures resulting in discharges that may affect waters of the state.

There are many factors (including factors related to geology, design, construction methods and materials, age of the system, population growth, and system operation and maintenance), which affect the likelihood of an SSO [sanitary sewer overflow].

A proactive approach that requires Enrollees to ensure a system-wide operation, maintenance, and management plan is in place will reduce the number and frequency of SSOs within the state. This approach will in turn decrease the risk to human health and the environment caused by SSOs.”
Many spills are preventable through proactive attention on sanitary sewer system management using the best practices and technologies available to address major causes of spills, including but not limited to:
• Blockages from sources including but not limited to:
o Fats, oils and grease;
o Tree roots;
o Rags, wipes and other paper, cloth and plastic products; and o Sediment and debris.
• Sewer system damage and exceedance of sewer system hydraulic capacity from identified system-specific environmental, and climate-change impacts, including but not limited to:
1272

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER
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13 o Sea level rise impacts including flooding, coastal erosion, seawater intrusion, tidal inundation and submerged lands;
o Increased surface water flows due to higher intensity rain events; o Flooding;
o Wildfires and wildfire induced impacts;
o Earthquake induced damage;
o Landslides; and
o Subsidence.
• Infrastructure deficiencies and failures, including but not limited to:
o Pump station mechanical failures;
o System age;
o Construction material failures;
o Manhole cover failures;
o Structural failures; and
o Lack of proper operation and maintenance.
• Insufficient system capacity (temporary or sustained), due to factors including but not limited to:
o Excessive and/or increased storm or groundwater inflow/infiltration; o Insufficient capacity due to population increase and/or new connections from industrial, commercial and other system users; and
o Stormwater capture projects utilizing a sanitary sewer system to convey stormwater to treatment facilities for reuse.
• Community impacts, including but not limited to:
o Power outages;
o Vandalism; and
o Contractor-caused or other third party-caused damages.

3.2.4. Underground Sanitary Sewer System Leakage
Portions of some sanitary sewer systems may leak, causing underground exfiltration (exiting) of sewage from the system. Exfiltrated sewage that remains in the underground infrastructure trench and/or the soil matrix, and that does not discharge into waters of the State (surface water or groundwater) may not threaten beneficial uses.

Underground exfiltrated sewage may threaten beneficial uses if discharged to waters of the State. Exfiltrated sewage that discharges to groundwater may impact beneficial uses of groundwater and pollute groundwater supply. Additionally, if in close proximity, exfiltrated sewage may enter into a compromised underground drainage conveyance system that discharges into a water of the United States, or into groundwater that is hydrologically connected to (feeds into) a water of the United States, thus potentially causing: (1) a Clean Water Act violation, (2) threat and impact to beneficial uses, and/or (3) surface water pollution.
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14 3.2.5. Proactive Sanitary Sewer System Management to Reduce Inflow and Infiltration Excessive inflow (stormwater entering) and infiltration (groundwater seepage entering) to sanitary sewer systems is preventable through proactive sewer system management using the best practices and technologies available. The efficiency of the downstream wastewater treatment processes is dependent on the performance of the sanitary sewer system. When the structural integrity of a sanitary sewer system deteriorates, high volumes of inflow and infiltration can enter the sewer system. High levels of inflow and infiltration increase the hydraulic load on the downstream treatment plant, which can reduce treatment efficiency, lead to bypassing a portion of the treatment process, cause illegal discharge of partially treated effluent, or in extreme situations make biological treatment facilities inoperable (e.g., wash out the biological organisms that treat the waste).

3.3. Water Quality Control Plans, Policies and Resolutions The nine Regional Water Boards have adopted region-specific water quality control plans (commonly referred to as Basin Plans) that designate beneficial uses, establish water quality objectives, and contain implementation programs and policies to achieve those objectives. The State Water Board has adopted statewide water quality control plans, policies and resolutions establishing statewide water quality objectives, implementation programs and initiatives.

3.3.1. State Water Board Antidegradation Policy
On October 28, 1968, the State Water Board adopted Resolution 68-16, titled Statement of Policy with Respect to Maintaining High Quality of Waters in California, which incorporates the federal antidegradation policy. Resolution 68-16 requires that existing water quality be maintained unless degradation is justified based on specific findings.

The continued prohibition of sewage discharges from sanitary sewer systems into waters of the State aligns with Resolution 68-16. A sewage discharge from sanitary sewers to waters of the State is prohibited by this Order. Therefore, this Order does not allow degradation of waters of the State. In addition, this Order: (1) further expands the existing prohibition of sewage discharges to include waters of the State, in addition to waters of the United States as provided in previous Order 2006-0003-DWQ, and (2) enhances the ability for Water Board enforcement of violations of the established prohibitions.

3.3.2. State Water Board Sources of Drinking Water Policy On May 19,1988, the State Water Board adopted Resolution 88-63 (amended on February 1, 2006), titled Sources of Drinking Water, establishing state policy that all waters of the State, with certain exceptions, are suitable or potentially suitable for municipal or domestic supply.

3.3.3. State Water Board Cost of Compliance Resolution
On September 24, 2013, the State Water Board adopted Resolution 2013-0029, titled Directing Actions in Response to Efforts by Stakeholders on Reducing Costs of 1274

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15 Compliance While Maintaining Water Quality Protection. Through this resolution, the State Water Board committed to continued stakeholder engagement in identifying and implementing measures to reduce costs of compliance with regulatory orders while maintaining water quality protection and improving regulatory program outcomes.

3.3.4. State Water Board Human Right to Water Resolution On February 16, 2016, the State Water Board adopted Resolution 2016-0010, titled Adopting the Human Right to Water as a Core Value and Directing its Implementation in Water Board Programs and Activities, addressing the human right to water as a core value and directing Water Board programs to implement requirements to support safe drinking water for all Californians.

On November 16, 2021, the State Water Board adopted Resolution 2021-0050 titled Condemning Racism, Xenophobia, Bigotry, and Racial Injustice, and Strengthening Commitment to Racial Equity, Diversity, Inclusion, Access, and Anti-racism. Among other actions, through Resolution 2021-0050, the State Water Board, in summary as corresponding to this General Order, reaffirms its commitment to its Human Right to Water resolution, upholding that every human being in California deserves safe, clean, affordable, and accessible water for human consumption, cooking, and sanitation purposes. Resolution 2021-0050 provides the State Water Board commitment to:
• Protect public health and beneficial uses of waterbodies in all communities, including communities disproportionately burdened by wastes discharge of waste to land and surface water;
• Restore impaired surface waterbodies and degraded aquifers; and • Promote multi-benefit water quality projects.

Through Resolution 2021-0050, the State Water Board also commits to expanding implementation of its Climate Change Resolution to address the disproportionate effects of extreme hydrologic conditions and sea-level rise on Black, Indigenous, and people of color communities, prioritizing:
• The right to safe, clean, affordable, and accessible drinking water and sanitation; • Sustainable management and protection of local groundwater resources; • Healthy watersheds; and
• Access to surface waterbodies that support subsistence fishing.

On June 7, 2022, the State Water Board adopted a Resolution, titled Authorizing the Executive Director or Designee to Enter into One or More Multi-Year Contracts Up to a Combined Sum of $4,000,000 for a Statewide Wastewater Needs Assessment, supporting the equitable access to sanitation for all Californians and implementation of Resolutions 2016-0010 and 2021-0050.

This General Order supports the State Water Board priority in collecting a comprehensive set of data for California’s wastewater systems, including sanitary sewer systems. Data reported per the requirements of this Order will be used with data from other Water Boards’ programs, to further develop criteria and create a statewide risk 1275

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16 framework to prioritize critical funding and infrastructure investments for California’s most vulnerable populations, including disadvantaged or severely disadvantaged communities with inadequate or failing sanitation systems and threatened access to healthy drinking water supplies.

3.3.5. State Water Board Open Data Resolution
On July 10, 2018, the State Water Board adopted Resolution 2018-0032, titled Adopting Principles of Open Data as a Core Value and Directing Programs and Activities to Implement Strategic Actions to Improve Data Accessibility and Associated Innovation, directing regulatory programs to assure all monitoring and reporting requirements support the State Water Boards’ Open Data Initiative.

3.3.6. State Water Board Response to Climate Change
On March 7, 2017, the State Water Board adopted Resolution 2017-0012, titled Comprehensive Response to Climate Change, requiring a proactive response to climate change in all California Water Board actions, with the intent to embed climate change consideration into all programs and activities.

3.4. California Environmental Quality Act
The adoption of this Order is an action to reissue general waste discharge requirements that is exempt from the California Environmental Quality Act (Public Resources Code section 21000 et seq.) because it is an action taken by a regulatory agency to assure the protection of the environment and the regulatory process involves procedures for protection of the environment (Cal. Code Regs., Title 14, section 15308). In addition, the action to adopt this Order is exempt from CEQA pursuant to Cal. Code Regs., Title 14, section 15301, to the extent that it applies to existing sanitary sewer collection systems that constitute “existing facilities” as that term is used in sections 15301 and 15302, to the extent that it results in the repair or replacement of existing systems involving negligible or no expansion of capacity.

3.5. State Water Board Funding Assistance for Compliance with Water Board Water Quality Orders
The State Water Board, Division of Financial Assistance administers the implementation of the State Water Board financial assistance programs, per Board-adopted funding policies. Among other funding areas, the Division administers loan and grant funding for the planning and construction of wastewater and water recycling facilities per funding program-specific policies and guidelines. Applicants may apply for Clean Water State Revolving Fund low-interest loan, Small Community Wastewater grant funding assistance, and other funding available at the time of application, for some of the costs associated with complying with this General Order.

Funding applicants may obtain further information regarding current funding opportunities, and Division of Financial Assistance staff contact information at the following website: Financial Assistance Funding - Grants and Loans | California State Water Resources Control Board.
(https://www.waterboards.ca.gov/water_issues/programs/grants_loans/) 1276

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17 Section 13477.6 of the Water Code authorizes the Small Community Grant Fund.

The Small Community Grant Fund allows the State Water Board to provide grant funding assistance to small, disadvantaged communities and small severely disadvantaged communities that may not otherwise be able to afford a loan or similar financing for projects to comply with requirements of this General Order. The State Water Board also considers loan forgiveness on a disadvantaged community-specific basis.

For disadvantaged communities’ wastewater needs, the State Water Board places priority on the funding of projects that address:
• Public health;
• Violations of waste discharge requirements and National Pollutant Discharge Elimination System (NPDES) permits;
• Providing sewer system service to existing septic tank owners; and • High priority public health and water quality concerns identified by a Regional Water Board.

3.6. Notification to Interested Parties
On January 31, 2022, the State Water Board notified interested parties and persons of its intent to reissue Sanitary Sewer Systems General Order 2006-0003-DWQ by issuing a draft General Order for a 60-day public comment period. State Water Board staff conducted extensive stakeholder outreach and encouraged public participation in the adoption process for this General Order. On March 15, 2022, the State Water Board held a public meeting to hear and consider oral public comments. The State Water Board considered all public comments prior to adopting this General Order.

THEREFORE, IT IS HEREBY ORDERED, that pursuant to Water Code sections 13263, 13267, and 13383 this General Order supersedes Order 2006-0003-DWQ, Order WQ 2013-0058-EXEC, and any amendments made to these Orders thereafter, except for enforcement purposes and to meet the provisions contained in Division 7 of the Water Code (commencing with section 13000) and regulations adopted thereunder, and the provisions of the Clean Water Act and regulations and guidelines adopted thereunder, the Enrollee shall comply with the requirements in this Order.

4. PROHIBITIONS

4.1 Discharge of Sewage from a Sanitary Sewer System
Any discharge from a sanitary sewer system that has the potential to discharge to surface waters of the State is prohibited unless it is promptly cleaned up and reported as required in this General Order.

4.2. Discharge of Sewage to Waters of the State
Any discharge from a sanitary sewer system, discharged directly or indirectly through a drainage conveyance system or other route, to waters of the State is prohibited. 1277

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18 4.3. Discharge of Sewage Creating a Nuisance
Any discharge from a sanitary sewer system that creates a nuisance or condition of pollution as defined in Water Code section 13050(m) is prohibited.

5. SPECIFICATIONS

5.1. Designation of a Legally Responsible Official
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-term 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.

For example, a sewer system superintendent or manager, an operations manager, a public utilities manager or director, or a district engineer may be designated as a Legally Responsible Official.

The Legally Responsible Official shall complete the electronic CIWQS “User Registration” form (https://ciwqs.waterboards.ca.gov/ciwqs/newUser.jsp). A Legally Responsible Official that represents multiple enrolled systems shall complete the electronic CIWQS “User Registration” form for each system.

The Enrollee shall submit any change to its Legally Responsible Official, and/or change in contact information, to the State Water Board within 30 calendar days of the change by emailing [email protected] and copying the appropriate Regional Water Board as provided in Attachment F (Regional Water Quality Control Board Contact Information) of this General Order.

5.2. Sewer System Management Plan Development and Implementation To facilitate adequate local funding and management of its sanitary sewer system(s), the Enrollee shall develop and implement an updated Sewer System Management Plan.

The scale and complexity of the Sewer System Management Plan, and specific elements of the Plan, must match the size, scale and complexity of the Enrollee’s sanitary sewer system(s). The Sewer System Management Plan must address, at minimum, the required Plan elements in Attachment D (Sewer System Management Plan – Required Elements) of this General Order. To be effective, the Sewer System Management Plan must include procedures for the management, operation, and maintenance of the sanitary sewer system(s). The procedures must: (1) incorporate the 1278

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19 prioritization of system repairs and maintenance to proactively prevent spills, and (2) address the implementation of current standard industry practices through available equipment, technologies, and strategies.

For an existing Enrollee under Order 2006-0003-DWQ that has certified its Continuation of Existing Regulatory Coverage, per section 2.1 (Requirements for Continuation of Existing Regulatory Coverage) of this General Order:

Within six (6) months of the Adoption Date of this General Order:
• The Legally Responsible Official shall upload the Enrollee’s existing Sewer System Management Plan to the online CIWQS Sanitary Sewer System Database.

For a new Enrollee:

Within twelve (12) months of the Application for Enrollment approval date:
• The governing entity of the new Enrollee shall approve its Sewer System Management Plan; and
• The Legally Responsible Official shall certify and upload its Sewer System Management Plan to the online CIWQS Sanitary Sewer System Database.

5.3. Certification of Sewer System Management Plan and Plan Updates The Legally Responsible Official shall certify and upload its Sewer System Management Plan and all subsequent updates to the online CIWQS Sanitary Sewer System Database.

5.4. Sewer System Management Plan Audits
The Enrollee shall conduct an internal audit of its Sewer System Management Plan, and implementation of its Plan, at a minimum frequency of once every three years. The audit must be conducted for the period after the end of the Enrollee’s last required audit period. Within six months after the end of the required 3-year audit period, the Legally Responsible Official shall submit an audit report into the online CIWQS Sanitary Sewer System Database per the requirements in section 3.10 (Sewer System Management Plan Audit Reporting Requirements) of Attachment E1 of this General Order.

Audit reports submitted to the CIWQS Sanitary Sewer System Database will be viewable only to Water Boards staff.

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:
• Evaluate the implementation and effectiveness of the Enrollee’s Sewer System Management Plan in preventing spills;
• Evaluate the Enrollee’s compliance with this General Order; • Identify Sewer System Management Plan deficiencies in addressing ongoing spills and discharges to waters of the State; and
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20 • Identify necessary modifications to the Sewer System Management Plan to correct deficiencies.

The Enrollee shall submit a complete audit report that includes:
• Audit findings and recommended corrective actions;
• A statement that sewer system operators’ input on the audit findings has been considered; and
• A proposed schedule for the Enrollee to address the identified deficiencies.

A new Enrollee of this General Order (that did not have a sanitary sewer system enrolled in the previous State Water Board Order 2006-0003-DWQ) shall conduct its first internal Sewer System Management Plan audit for the time period between the date of submittal of its certified Sewer System Management Plan and the third subsequent December 31st date. The audit report must be submitted into the online CIWQS Sanitary Sewer System Database by July 1 of the following calendar year.

See the following tables for clarification:

Initial Audit Period and Audit Due Date for New Enrollees Audit Period Audit Due Date
New Enrollee
Certified Sewer System Management
Plan Submittal Date
through
the third subsequent December 31
st date
July 1
st date after
audit period
Example
Certified Sewer System Management
Plan Submittal Date of August 2, 2025
Audit Period of August 2, 2025 through
December 31, 2027
July 1, 2028
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21 Initial Audit Period for Transition from 2-Year Audit Required in Previous Order 2006-0003-DWQ to 3-Year Audit Required in this General Order Audit Period Audit Due Date
An Enrollee
previously
regulated by Order
2006-003-DWQ
A 3-year period starting from the end of
last required 2-year Audit Period
Within six months
after end of 3-year
Audit Period
Example
Last required Audit Period start date of
August 2, 2021;
Audit Period of August 2, 2021 through
August 1, 2024
February 1, 2025
Three-Year Ongoing Audit Period
Audit Period Audit Due Date
Each Enrollee A 3-year period starting from the end of
last required Audit Period
Within six months
after end of 3-year
Audit Period

5.5. Six-Year Sewer System Management Plan Update
At a minimum, the Enrollee shall update its Sewer System Management Plan every six (6) years after the date of its last Plan Update due date. (For an Enrollee previously regulated by Order 2006-0003-DWQ, the six-year period shall commence on the due date identified in section 3.11 of Attachment E1 (Notification, Monitoring, Reporting and Recordkeeping Requirements) of this Order. The Updated Sewer System Management Plan must include:
• Elements required in Attachment D (Sewer System Management Plan – Required Elements) of this Order;
• Summary of revisions included in the Plan update based on internal audit findings; and
• Other sewer system management-related changes.

The Enrollee’s governing entity shall approve the updated Plan. The Legally Responsible Official shall upload and certify the approved updated Plan in the online CIWQS Sanitary Sewer System Database in accordance with section 3.11 (Sewer System Management Plan Reporting Requirements) of Attachment E1 (Notification, Monitoring, Reporting and Recordkeeping Requirements) of this General Order. During the time period in between Plan updates, the Enrollee shall continuously document changes to its Sewer System Management Plan in a change log attached to the Plan. 1281

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22 5.6. System Resilience
The Enrollee shall include and implement system-specific procedures in its Sewer System Management Plan to proactively prioritize: (1) operation and maintenance, (2) condition assessments, and (3) repair and rehabilitation, to address ongoing system resilience, as specified in Attachment D (Sewer System Management Plan – Required Elements) of this General Order.

5.7. Allocation of Resources
The Enrollee shall:
• Establish and maintain a means to manage all necessary revenues and expenditures related to the sanitary sewer system; and
• Allocate the necessary resources to its sewer system management program for:
o Compliance with this General Order,
o Full implementation of its updated Sewer System Management Plan, o System operation, maintenance, and repair, and
o Spill responses.

5.8. Designation of Data Submitters
The Legally Responsible Official may designate one or more individuals as a Data Submitter for reporting of spill data. The Legally Responsible Official shall authorize the designation of Data Submitter(s) through the online CIWQS database (https://ciwqs.waterboards.ca.gov) prior to the individuals establishing a CIWQS user account (https://ciwqs.waterboards.ca.gov/ciwqs/newUser.jsp) and entering spill data into the online CIWQS Sanitary Sewer System Database.

The Legally Responsible Official shall submit any change to its Data Submitter(s), and/or change in Data Submitter contact information, to the State Water Board within 30 calendar days of the change, by emailing [email protected] and copying the appropriate Regional Water Board as provided in Attachment F (Regional Water Quality Control Board Contact Information) of this General Order.

5.9. Reporting Certification
The Legally Responsible Official shall electronically certify, on the Enrollee’s behalf, all applications, reports, the Sewer System Management Plan(s) and corresponding updates, and other information submitted electronically into the online CIWQS Sanitary Sewer System Database, as follows:
“I certify under penalty of perjury under the laws of the State of California that the electronically submitted information was prepared under my direction or supervision.

Based on my inquiry of the person(s) directly responsible for gathering the information, to the best of my knowledge and belief, the information submitted is true, accurate, and complete, and complies with the Statewide Sanitary Sewer Systems General Order.

I am aware that there are significant penalties for submitting false information.” 1282

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23 Hardcopy submittals to the State Water Board must be accompanied by the above certification statement.

5.10. System Capacity
The Enrollee shall maintain the system capacity necessary to convey: (1) base flows during dry weather conditions, and (2) wet weather peak flows consistent with designated local historic storms. Design storms must take into account system-specific stormwater contributions via inflow and infiltration, and location-specific depth of groundwater and storm frequencies. The Enrollee shall implement capital improvements to provide adequate hydraulic capacity to:
• Meet or exceed the design criteria as defined in the Enrollee’s System Evaluation and Capacity Assurance element of its Sewer System Management Plan; and • Prevent system capacity-related spills, and adverse impacts to the treatment efficiency of downstream wastewater treatment facilities.

5.11. System Performance Analysis
The Enrollee shall include a running 10-year system performance analysis in its Annual Report. The analysis must include two CIWQS-generated graphs presenting the following information:

Graph 1 – Total Spill Volume per Year:

X axis: A 10-year period which includes the current calendar year and the nine previous calendar years;
Y axis: The total spill volume, per Spill Category, for each calendar year.

Graph 2 – Total Number of Spills per Year:

X axis: A 10-year period which includes the current calendar year and the nine previous calendar years;
Y axis: The total number of spills, per Spill Category, for each calendar year.

The current calendar year is the calendar year covered in the Annual Report.

The Enrollee shall generate the graphs in CIWQS, using the existing data in the online CIWQS Sanitary Sewer System Database at the following graph generation link:
(https://ciwqs.waterboards.ca.gov/ciwqs/readOnly/PublicReportSSOServlet?reportActio n=criteria&reportId=sso_operation_report).

5.12. Spill Emergency Response Plan and Remedial Actions For Existing Enrollees (with regulatory coverage under Order 2006-0003-DWQ):

Within six (6) months of the Adoption Date of this General Order, the Enrollee shall update and implement its Spill Emergency Response Plan, per Attachment D, section 6 (Spill Emergency Response Plan) of this General Order. 1283

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24 For New Enrollees:

Within six (6) months of the Application for Enrollment approval date, the Enrollee shall develop and implement a Spill Emergency Response Plan, per Attachment D, section 6 (Spill Emergency Response Plan) of this General Order.

The Enrollee shall certify, in its Annual Report, that its Spill Emergency Response Plan is up to date.

The Spill Emergency Response Plan shall include measures to protect public health and the environment. The Enrollee shall respond to spills from its system(s) in a timely manner that minimizes water quality impacts and nuisance by:
• Immediately stopping the spill and preventing/minimizing a discharge to waters of the State;
• Intercepting sewage flows to prevent/minimize spill volume discharged into waters of the State;
• Thoroughly recovering, cleaning up and disposing of sewage and wash down water; and
• Cleaning publicly accessible areas while preventing toxic discharges to waters of the State.

5.13. Notification, Monitoring, Reporting and Recordkeeping Requirements The Enrollee shall comply with notification, monitoring, reporting, and recordkeeping requirements in Attachment E1 of this General Order.

5.13.1. Spill Categories
Individual spill notification, monitoring and reporting must be in accordance with the following spill categories:
• Category 1 Spill
A Category 1 spill is a spill of any volume of sewage from or caused by a sanitary sewer system regulated under this General Order that results in a discharge to:
o A surface water, including a surface water body that contains no flow or volume of water; or
o A drainage conveyance system that discharges to surface waters when the sewage is not fully captured and returned to the sanitary sewer system or disposed of properly.

Any spill volume not recovered from a drainage conveyance system is considered a discharge to surface water, unless the drainage conveyance system discharges to a dedicated stormwater infiltration basin or facility. 1284

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25 A spill from an Enrollee-owned and/or operated lateral that discharges to a surface water is a Category 1 spill; the Enrollee shall report all Category 1 spills per section

3.1 of Attachment E1 (Notification, Monitoring, Reporting and Recordkeeping Requirements) of this General Order.
• Category 2 Spill
A Category 2 spill is a spill of 1,000 gallons or greater, from or caused by a sanitary sewer system regulated under this General Order that does not discharge to a surface water.

A spill of 1,000 gallons or greater that spills out of a lateral and is caused by a failure or blockage in the sanitary sewer system, is a Category 2 spill. • Category 3 Spill
A Category 3 spill is a spill of equal to or greater than 50 gallons and less than 1,000 gallons, from or caused by a sanitary sewer system regulated under this General Order that does not discharge to a surface water.

A spill of equal to or greater than 50 gallons and less than 1,000 gallons, that spills out of a lateral and is caused by a failure or blockage in the sanitary sewer system is a Category 3 spill.
• Category 4 Spill
A Category 4 spill is a spill of less than 50 gallons, from or caused by a sanitary sewer system regulated under this General Order that does not discharge to a surface water.

A spill of less than 50 gallons that spills out of a lateral and is caused by a failure or blockage in the sanitary sewer system is a Category 4 spill.

5.13.2. Annual Report
The Enrollee shall submit an Annual Report (previously termed as Collection System Questionnaire in Order 2006-0003-DWQ) as specified in section 3.9 (Annual Report) of Attachment E1 (Notification, Monitoring, Reporting and Recordkeeping Requirements) of this General Order.

For new Enrollees: Within 30 days of obtaining a CIWQS account, a new Enrollee shall submit its initial Annual Report, as specified in section 3.9 (Annual Report) of Attachment E1 (Notification, Monitoring, Reporting and Recordkeeping Requirements) of this General Order.
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26 5.14. Electronic Sanitary Sewer System Service Area Boundary Map For continuing enrollees, starting on July 1, 2025, and no later than December 31, 2025:

For new enrollees – no earlier than July 1, 2025, or within 12 months of the Application for Enrollment approval date, whichever date is later:

The Legally Responsible Official shall submit, to the State Water Board, geospatial data detailing the locations of the Enrollee’s sanitary sewer system service area boundary, per the required content and specifications in section 3.8 (Electronic Sanitary Sewer System Service Area Boundary Map) of Attachment E1 of this General Order, for each system identified by a WDID number.

An Enrollee of a disadvantaged community that may need assistance developing an electronic map to comply with this requirement, may contact State Water Board staff for assistance at [email protected].

5.15. Voluntary Reporting of Spills from Privately-Owned Sewer Laterals and/or Private Sanitary Sewer Systems
Within 24 hours of becoming aware of a spill (as described below) from a private sewer lateral or private sanitary sewer system that is not owned/operated by the Enrollee, the Enrollee is encouraged to report the following observations to the online CIWQS Sanitary Sewer System Database at the following link:
https://ciwqs.waterboards.ca.gov:
• A spill equal or greater than 1,000 gallons that discharges (or has a potential to discharge) to a water of the State, or a drainage conveyance system that discharges to waters of the State; or
• Any volume of sewage that discharges (or has a potential to discharge) to surface waters.

In the CIWQS module, the Enrollee is encouraged to identify:
• Time of observation;
• Description of general spill location (for example, street name and cross street names);
• Estimated volume of spill;
• If known, general description of spill destination (for example, flowing into drainage channel, flowing directly into a creek, etc.); and
• If known, name of private system owner/operator.

The CIWQS database will make the name and contact information of the entity voluntarily reporting a private spill, accessible to State and Regional Water Board staff only. The CIWQS database will only make information regarding the actual spill, accessible to the public.
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27 5.16. Voluntary Notification of Spills from Privately-Owned Laterals and/or Systems to the California Office of Emergency Services
Upon observing or acquiring knowledge of any of the following from a private sewer lateral or private sanitary sewer system that is not owned/operated by the Enrollee, the Enrollee is encouraged to notify the California Office of Emergency Services (as provided by Health and Safety Code section 5410 et. seq. and Water Code section 13271), or inform the responsible party that State law requires such notification to the Office of Emergency Services by any person that causes or allows a sewage discharge to waters of the State:
• A spill equal to 1,000 gallons or more that discharges (or has a potential to discharge) to waters of the State, or a drainage conveyance system that discharges to waters of the State; or
• A spill of any volume to surface waters.

5.17. Unintended Failure to Report
If an Enrollee becomes aware that they unintentionally failed to submit relevant facts in any report required in this General Order, the Enrollee shall promptly notify Regional Water Board and State Water Board staff. Regional Water Board contact information is included in Attachment F of this Order. State Water Board staff shall be contacted by email at [email protected] for assistance in formally amending the corresponding report(s) in the online CIWQS Sanitary Sewer System Database.

5.18. Duty to Report to Water Boards
In accordance with Water Code section 13267 and/or section 13383, upon request by the State Water Board Executive Director (or designee) or a Regional Water Board Executive Officer (or designee), the Enrollee shall provide the requested information which the State or Regional Water Board deems necessary to determine compliance with this General Order.

5.19. Operation and Maintenance
To prevent discharges to the environment, the Enrollee shall maintain in good working order, and operate as designed, any facility or treatment and control system designed to contain sewage and convey it to a treatment plant.

6. PROVISIONS

6.1. Enforcement Provisions
The following enforcement provisions are based on existing federal and state regulations, laws and policies, including the federal Clean Water Act, the state Water Code and the State Water Board Enforcement Policy.

6.1.1. Enforceability of Clean Water Act and Water Code Violations Noncompliance with requirements of this General Order or discharging sewage without enrolling in this General Order constitutes a violation of the Water Code and a potential 1287

STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER
ORDER 2022-0103-DWQ December 6, 2022
28 violation of the Clean Water Act and is grounds for an enforcement action by the State Water Board or the applicable Regional Water Board. Failure to comply with the notification, monitoring, inspection, entry, reporting, and recordkeeping requirements may subject the Enrollee to administrative civil liabilities of up to $10,000 a day per violation pursuant to Water Code section 13385; up to $1,000 a day per violation pursuant to Water Code section 13268; or referral to the Attorney General for judicial civil enforcement. Discharging waste not in compliance with the requirements of this General Order or the Clean Water Act may subject the Enrollee to administrative civil liabilities up to $10,000 a day per violation and additional liability up to $10 per gallon of discharge not cleaned up after the first 1,000 gallons of discharge; up to $5,000 a day per violation pursuant to Water Code section 13350 or up to $20 per gallon of waste discharged; or referral to the Attorney General for judicial civil enforcement.

6.1.2. Monetary Penalties
The Water Code provides the State and Regional Water Boards the authority to pursue formal enforcement actions, including imposing administrative liability and civil monetary penalties, for non-compliance with the requirements of this General Order and violations of the Clean Water Act.

6.1.3. Falsifying or Failure to Report
The Water Code provides that any person failing or refusing to furnish technical or monitoring program reports, as required under this General Order, or falsifying any information provided in the technical or monitoring reports is subject to administrative liability and civil monetary penalties. Any person who knowingly fails or refuses to furnish technical or monitoring program reports or falsifies any information provided in reports required by this General Order is subject to criminal penalties.

6.1.4. Severability of General Order
The provisions of this General Order are severable; if any provision of this Order, or the application of any provision of this Order to any circumstance, is held invalid, the application of such provision to other circumstances and the remainder of this Order shall not be affected thereby.

6.1.5. Indirect Discharges
In the event that a spill enters into a drainage conveyance system, the Enrollee shall take all feasible steps to prevent discharge of sewage into waters of the State by blocking or redirecting the flow in the drainage conveyance system, removing the sewage from the drainage conveyance system, and cleaning the system in a manner that does not inadvertently impact beneficial uses of the receiving water body.

6.1.6. Water Boards’ Considerations for Discretionary Enforcement Consistent with the State Water Board Enforcement Policy, when considering Water Code section 13327 factors, the State Water Board or a Regional Water Board may consider the Enrollee’s efforts to contain, control, clean up, and mitigate spills. In assessing the factors, the State Water Board or the applicable Regional Water Board will consider:
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STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER
ORDER 2022-0103-DWQ December 6, 2022
29 • The Enrollee’s compliance with this General Order with a focus on compliance with reporting requirements;
• The Enrollee’s provision of adequate funding to implement the requirements of this General Order;
• The Enrollee’s compliance with providing a complete and updated Sewer System Management Plan;
• The Enrollee’s compliance with implementing its Sewer System Management Plan; • The overall effectiveness of the Enrollee’s Sewer System Management Plan with respect to:
o System management, operation, and maintenance,
o Adequate treatment facilities, sanitary sewer system facilities, and/or components with an appropriate design capacity, to reasonably prevent spills (e.g. adequately enlarging treatment or collection facilities to accommodate growth, infiltration and inflow, etc.),
o Preventive maintenance (including cleaning, root grinding, and fats, oils, and grease control) and source control measures,
o Implementation of backup equipment,
o Inflow and infiltration prevention and control,
o Appropriate sanitary sewer system capacity to prevent spills, and o The Enrollee’s responsiveness to stop and mitigate the impact of the discharge; • The Enrollee’s compliance with identifying the cause of the spill; • The Enrollee’s use of available information and observations to accurately estimate the spill volume and identify the affected or potentially affected receiving waters; • The Enrollee’s thoroughness of cleaning up sewage in drainage conveyance systems after the spill(s);
• The Enrollee’s use of water quality and biological monitoring and assessment to determine the short-term and long-term impacts to beneficial uses and the environment;
• The Enrollee’s follow up actions to improve system performance; • The Enrollee’s implementation of feasible alternatives to prevent spills, such as:
o Use of temporary storage or waste retention,
o Reduction of system inflow and infiltration,
o Collection and hauling of waste to a treatment facility, o Prevention of and/ or containment of spills due to a design storm event identified in the Enrollee’s Sewer System Management Plan,
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STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER
ORDER 2022-0103-DWQ December 6, 2022
30 o Implementation of available equipment, technologies, strategies, and recommended industry practices for maintaining and managing sewer systems to prevent spills, and contain and eliminate discharges to waters of the State; and • The spill duration and factors beyond the reasonable control of the Enrollee causing the event.

6.1.7. Enforcement Discretion Based on Reporting Compliance Consistent with the State Water Board Enforcement Policy, the State Water Board or a Regional Water Board may consider the Enrollee’s efforts to comply with spill reporting requirements when determining compliance with Water Code section 13267 and section 13383. When assessing Water Code section 13227 factors, the State Water Board or the applicable Regional Water Board will consider:
• The Enrollee’s diligence to comply with all reporting requirements in this General Order;
• The use of best available information for the Enrollee’s reporting of spill start date and start time in which the release of sewage from the sanitary sewer system initiated;
• The Enrollee’s reporting of spill end date, and end time to be the date and time in which the release of sewage from the sanitary sewer system was stopped; • The Enrollee’s diligence to accurately estimate and report spill volumes; • The Enrollee’s subsequent verification and/or updates to initial Draft Spill Reports in accordance with this General Order; and
• The Enrollee’s timely certification of required spill reports.

Consistent with Water Code section 13267 and section 13383, the State Water Board or a Regional Water Board may require an Enrollee to report the results of a condition assessment of a specified portion of the Enrollee’s sanitary sewer system.

6.2. Other Regional Water Board Orders
It is the intent of the State Water Board that sanitary sewer systems be regulated in a manner consistent with federal and state regulations. This Order will not be interpreted or applied:
• In a manner inconsistent with the federal Clean Water Act; • To authorize a spill or discharge that is illegal under either the Clean Water Act, the Water Code, and/or an applicable Basin Plan prohibition or water quality standard; • To prohibit a Regional Water Board from issuing an individual National Pollutant Discharge Elimination System (NPDES) permit or individual waste discharge requirements superseding an Enrollee’s regulatory coverage under this General Order for a sanitary sewer system authorized under the Clean Water Act or Water Code;
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STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER
ORDER 2022-0103-DWQ December 6, 2022
31 • To supersede any more specific or more stringent waste discharge requirements or enforcement orders issued by a Regional Water Board; or • To supersede any more specific or more stringent state or federal requirements in existing regulation, an administrative/judicial order, or Consent Decree.

6.3. Sewer System Management Plan Availability
The Enrollee’s updated Sewer System Management Plan must be maintained for public inspection at the Enrollee’s offices and facilities and must be available to the public through CIWQS and/or on the Enrollee’s website, in accordance with section 3.8 (Sewer System Management Plan Reporting Requirements) of Attachment E1 (Notification, Monitoring, Reporting and Recordkeeping Requirements) of this General Order.

6.4. Entry and Inspection

6.4.1. Entry and Availability of Information
The Enrollee shall allow State and Regional Water Board staff, upon presentation of credentials and other documents as may be required by law, to:
• Enter upon the Enrollee’s premises where a regulated facility or activity is located or conducted, or where records are kept under the requirements of this General Order; • Have access to and reproduce any records required to be maintained by this General Order;
• Inspect any facility and/or equipment (including monitoring and control equipment), practices, or operations required in this General Order; and • Sample or monitor substances or parameters for assuring compliance with this General Order, or as otherwise authorized by the Water Code.

6.4.2. Pre-Inspection Questionnaire
The Enrollee shall provide pre-inspection information to State and Regional Water Board staff through the completion of a Pre-Inspection Questionnaire provided by Water Board staff.
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ATTACHMENT A - DEFINITIONS
Annual Report
An Annual Report (previously termed as Collection System Questionnaire in Order 2006-0003-DWQ) is a mandatory report in which the Enrollee provides a calendar-year update of its efforts to prevent spills.

Basin Plan
A Basin Plan is a water quality control plan specific to a Regional Water Quality Control Board (Regional Water Board), that serves as regulations to: (1) define and designate beneficial uses of surface and groundwaters, (2) establish water quality objectives for protection of beneficial uses, and (3) provide implementation measures.

Beneficial Uses
The term “Beneficial Uses” is a Water Code term, defined as the uses of the waters of the State that may be protected against water quality degradation. Examples of beneficial uses include but are not limited to, municipal, domestic, agricultural and industrial supply; power generation; recreation; aesthetic enjoyment; navigation; and preservation and enhancement of fish, wildlife, and other aquatic resources or preserves.

California Integrated Water Quality System (CIWQS)
CIWQS is the statewide database that provides for mandatory electronic reporting as required in State and Regional Water Board-issued waste discharge requirements.

Data Submitter
A Data Submitter is an individual designated and authorized by the Enrollee’s Legally Responsible Official to enter spill data into the online CIWQS Sanitary Sewer System Database. A Data Submitter does not have the authority of a Legally Responsible Official to certify reporting entered into the online CIWQS Sanitary Sewer System Database.

Disadvantaged Community
A disadvantaged community is a community with a median household income of less than eighty percent (80%) of the statewide annual median household income.

For the purpose of this General Order, there is no differentiation between a small and large disadvantaged community.

Drainage Conveyance System
A drainage conveyance system is a publicly- or privately-owned separate storm sewer system, including but not limited to drainage canals, channels, pipelines, pump stations, detention basins, infiltration basins/facilities, or other facilities constructed to transport stormwater and non-stormwater flows.
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Enrollee
An Enrollee is a public, private, or other non-governmental entity that has obtained approval for regulatory coverage under this General Order, including:
• A state agency, municipality, special district, or other public entity that owns and/or operates one or more sanitary sewer systems:
• greater than one (1) mile in length (each individual sanitary sewer system); • one mile or less in length where the State Water Resources Control Board or a Regional Water Quality Control Board requires regulatory coverage under this Order, or • A federal agency, private company, or other non-governmental entity that owns and/or operates a sanitary sewer system of any size where the State Water Resources Control Board or a Regional Water Quality Control Board requires regulatory coverage under this Order in response to a history of spills, proximity to surface water, or other factors supporting regulatory coverage.

Environmentally Sensitive Area
An environmentally sensitive area is a designated agricultural and/or wildlife area identified to need special natural landscape protection due to its wildlife or historical value.

Exfiltration
Exfiltration is the underground exiting of sewage from a sanitary sewer system through cracks, offset or separated joints, or failed infrastructure due to corrosion or other factors.

Flood Control Channel
A flood control channel is a channel used to convey stormwater and non-stormwater flows through and from areas for flood management purposes.

Governing Entity
A governing entity includes but is not limited to the following:
• A publicly elected governing board, council, or commission of a municipal agency; • A Department or Division director of a federal or state agency that is not governed by a board;
• A governing board or commission of an organization or association; and • A private system owner/manager that is not governed by a board.

Hydrologically Connected
Two waterbodies are hydrologically connected when one waterbody flows, or has the potential to flow, into the other waterbody. For the purpose of this General Order, groundwater is hydrologically connected to a surface water when the
groundwater feeds into the surface water. (The surface
waterbody in this example is termed a gaining stream as it gains flow from surrounding groundwater.)
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Lateral (including Lower and Upper Lateral)
A lateral is an underground segment of smaller diameter pipe that transports sewage from a customer’s building or property (residential, commercial, or industrial) to the Enrollee’s main sewer line in a street or easement. Upper and lower lateral boundary definitions are subject to local jurisdictional codes and ordinances, or private system ownership.

A lower lateral is the portion of the lateral located between the sanitary sewer system main, and either the property line, sewer clean out, curb line, established utility easement boundary, or other jurisdictional locations.

An upper lateral is the portion of the lateral from the property line, sewer clean out, curb line, established utility easement boundary, or other jurisdictional locations, to the building or property.

Legally Responsible Official
A Legally Responsible Official is an official representative, designated by the Enrollee, with authority to sign and certify submitted information and documents required by this General Order.

Nuisance
For the purpose of this General Order, a nuisance, as defined in Water Code section 13050(m), is anything that meets all of the following requirements:
• Is injurious to health, or is indecent or offensive to the senses, or an obstruction to the free use of property, so as to interfere with the comfortable enjoyment of life or property; • Affects at the same time an entire community or neighborhood, or any considerable number of persons, although the extent of the annoyance or damage inflicted upon individuals may be unequal; and
• Occurs during, or as a result of, the treatment or disposal of wastes.

Private Sewer Lateral
A private sewer lateral is the privately-owned lateral that transports sewage from private property(ies) into a sanitary sewer system.

Private Sanitary Sewer System
A private sanitary sewer system is a sanitary sewer system of any size that is owned and/or operated by a private individual, company, corporation, or organization. A private sanitary sewer system may or may not connect into a publicly owned sanitary sewer system.

Potential to Discharge, Potential Discharge
Potential to Discharge, or Potential Discharge, means any exiting of sewage from a sanitary sewer system which can reasonably be expected to discharge into a water of the State based on the size of the sewage spill, proximity to a drainage conveyance system, and the nature of the surrounding environment.
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Receiving Water
A receiving water is a water of the State that receives a discharge of waste.

Resilience
Resilience is the ability to recover from or adjust to adversity or change, and grow from disruptions. Resilience can be built through planning, preparing for, mitigating, and adapting to changing conditions.

Sanitary Sewer System
A sanitary sewer system is a system that is designed to convey sewage, including but not limited to, pipes, manholes, pump stations, siphons, wet wells, diversion structures and/or other pertinent infrastructure, upstream of a wastewater treatment plant headworks, including:
• Laterals owned and/or operated by the Enrollee;
• Satellite sewer systems; and/or
• Temporary conveyance and storage facilities, including but not limited to temporary piping, vaults, construction trenches, wet wells, impoundments, tanks and diversion structures.

For purpose of this Order, sanitary sewer systems include only systems owned and/or operated by the Enrollee.

Satellite Sewer System
A satellite sewer system is a portion of a sanitary sewer system owned or operated by a different owner than the owner of the downstream wastewater treatment facility ultimately treating the sewage.

Sewer System Management Plan
A sewer system management plan is a living document an Enrollee develops and implements to effectively manage its sanitary sewer system(s) in accordance with this General Order.

Sewage
Sewage, and its associated wastewater, is untreated or partially treated domestic, municipal, commercial and/or industrial waste (including sewage sludge), and any mixture of these wastes with inflow or infiltration of stormwater or groundwater, conveyed in a sanitary sewer system.

Spill
A spill is a discharge of sewage from any portion of a sanitary sewer system due to a sanitary sewer system overflow, operational failure, and/or infrastructure failure. Exfiltration of sewage is not considered to be a spill under this General Order if the exfiltrated sewage remains in the subsurface and does not reach a surface water of the State.

Training
Training is in-house or external education and guidance needed that provides the knowledge, skills, and abilities to comply with this General Order. 1295
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Wash Down Water
Wash down water is water used to clean a spill area.

Waste
Waste, as defined in Water Code section 13050(d), includes sewage and any and all other waste substances, liquid, solid, gaseous, or radioactive, associated with human habitation, or of human or animal origin, or from any producing, manufacturing, or processing operation, including waste placed within containers of whatever nature prior to, and for purposes of, disposal.

Waste Discharge Identification Number (WDID)
A waste discharge identification number (WDID) identifies each individual sanitary sewer system enrolled under this General Order. A WDID number is assigned to each enrolled system upon an Enrollee’s approved regulatory coverage.

Waters of the State
Waters of the State are surface waters or groundwater within boundaries of the state as defined in Water Code section 13050(e), in which the State and Regional Water Boards have authority to protect beneficial uses. Waters of the State include, but are not limited to, groundwater aquifers, surface waters, saline waters, natural washes and pools, wetlands, sloughs, and estuaries, regardless of flow or whether water exists during dry conditions.

Waters of the State include waters of the United States.

Waters of the United States
Waters of the United States are surface waters or waterbodies that are subject to federal jurisdiction in accordance with the Clean Water Act.

Water Quality Objective
A water quality objective is the limit or maximum amount of pollutant, waste constituent or characteristic, or parameter level established in statewide water quality control plans and Regional Water Boards’ Basin Plans, for the reasonable protection of beneficial uses of surface waters and groundwater and the prevention of nuisance. 1296
STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT B – APPLICATION FOR ENROLLMENT December 6, 2022 B - 1
ATTACHMENT B – APPLICATION FOR ENROLLMENT

1. Enrollment Status: (Mark only one item)
☐ New Enrollee
☐ New Enrollee with previous regulatory coverage under Order 2006-0003-DWQ (that failed to certify continuation of coverage in CIWQS per Order 2022-XXXX-DWQ) Existing WDID Number: __________________________________________________

2. Applicant Information:

Legally Responsible Official Submitting Application
First and Last Name: ____________________________________________________ Title: _________________________________________________________________ Phone: _______________________________________________________________ Email: ________________________________________________________________ System Owner/Operator Name: ______________________________________________ Mailing Address:________________________________________________________ City, State, Zip:_________________________________________________________ County: _______________________________________________________________ Sanitary Sewer System Name: ____________________________________________ Regional Water Quality Control Board(s): ____________________________________ Signature and Date: _____________________________________________________

3. Applicant Type (Check one):
☐ City ☐ County ☐ State ☐ Federal ☐ Special District
☐ Government Combination ☐ Private ☐ Other Non-governmental Entity

4. Wastewater Treatment Plant Receiving Sanitary Sewer System Waste:

Wastewater Treatment Plant Permittee:________________________________________ WDID No.: ______________________________________________________________ 1297
STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT B – APPLICATION FOR ENROLLMENT December 6, 2022 B - 2

5. Billing Information
Billing Address: ___________________________________________________________ City, State, Zip: ___________________________________________________________ Billing Contact Person and Title: ______________________________________________ Phone and Email Address: __________________________________________________

6. Application Fee:

The application fee, as required by Water Code section 13260, is based on the daily population served by the sanitary sewer system. See updated Fee Schedule. (https://www.waterboards.ca.gov/resources/fees/water_quality/) Check one of the following and enter fee amount:
☐ Population Served < 50,000 – Total Fee submitted: $ ___________ ☐ Population Served ≥ 50,000 – Total Fee submitted: $ ___________ Make the fee payment payable to the State Water Resources Control Board and mail the complete application package to:

State Water Resources Control Board, Accounting Office
P. O. Box 1888
Sacramento, CA 95812-1888
Attention: Statewide Sanitary Sewer System Program

7. Application Submittal Certification
I certify under penalty of perjury under the laws of the State of California that to the best of my knowledge and belief, the information in the submitted application package is true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fines and imprisonment.

Print Name: ______________________________________________________________ Title: ___________________________________________________________________ Signature: __________________________________________Date: ________________ 1298
STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT C – NOTICE OF TERMINATION December 6, 2022
C - 1

ATTACHMENT C - NOTICE OF TERMINATION

1. Enrollee Information
Enrollee Name: ___________________________________________________________ WDID No:________________________________________________________________ Legally Responsible Official Requesting Termination of Coverage: ___________________ First and Last Name: ____________________________________________________ Title: _________________________________________________________________ Phone: _______________________________________________________________ Email: ________________________________________________________________ Mailing Address: __________________________________________________________ City, State, Zip: ___________________________________________________________ County: _________________________________________________________________ Sanitary Sewer System Name(s) or Unique Identifier(s): ___________________________ Regional Water Quality Control Board(s): _______________________________________ Signature and Date:________________________________________________________

2. Basis of Termination
Explanation of termination, including subsequent regulatory coverage and subsequent owner/operator of enrolled sanitary sewer system, as applicable:
________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ 1299
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3. Regulatory Coverage Termination Certification
I certify under penalty of perjury under the laws of the State of California that to the best of my knowledge: 1) the sanitary sewer system I officially represent is not required to be regulated under the Statewide Waste Discharge Requirements for Sanitary Sewer Systems Order 2022-XXXX-DWQ, and 2) the information submitted in this Notice of Termination is true, accurate and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine or imprisonment. Additionally, I understand that the submittal of this Notice of Termination does not release sanitary sewer system agencies from liability for any violations of the Clean Water Act.

Print Name: ______________________________________________________________ Title: ___________________________________________________________________ Signature: __________________________________________Date: ________________ For State Water Board Use Only
☐ Approved for Termination ☐ Denied and Returned to Enrollee Deputy Director of Water Quality Signature: _____________________________________ Date: ____________________Notice of Termination Effective Date: __________________ 1300
STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT D – SEWER SYSTEM MANAGEMENT PLAN
REQUIRED ELEMENTS December 6, 2022
D - 1
ATTACHMENT D – SEWER SYSTEM MANAGEMENT PLAN – REQUIRED ELEMENTS Table of Contents

1. Sewer System Management Plan Goal And Introduction ............................................D-2

1.1. Regulatory Context ...........................................................................................D-2

1.2. Sewer System Management Plan Update Schedule.........................................D-3

1.3. Sewer System Asset Overview .........................................................................D-3

2. Organization ................................................................................................................D-3

3. Legal Authority.............................................................................................................D-4

4. Operation And Maintenance Program..........................................................................D-4

4.1. Updated Map of Sanitary Sewer System ..........................................................D-4

4.2. Preventive Operation and Maintenance Activities .............................................D-4

4.3. Training .............................................................................................................D-5

4.4. Equipment Inventory .........................................................................................D-5

5. Design And Performance Provisions ...........................................................................D-5

5.1. Updated Design Criteria and Construction Standards and Specifications.........D-5

5.2. Procedures and Standards................................................................................D-5

6. Spill Emergency Response Plan..................................................................................D-6

7. Sewer Pipe Blockage Control Program........................................................................D-7

8. System Evaluation, Capacity Assurance and Capital Improvements...........................D-7

8.1 System Evaluation and Condition Assessment.................................................D-7

8.2. Capacity Assessment and Design Criteria ........................................................D-8

8.3. Prioritization of Corrective Action ......................................................................D-9

8.4. Capital Improvement Plan.................................................................................D-9

9. Monitoring, Measurement and Program Modifications.................................................D-9

10. Internal Audits............................................................................................................D-10

11. Communication Program ...........................................................................................D-10 1301
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REQUIRED ELEMENTS December 6, 2022
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ATTACHMENT D – SEWER SYSTEM MANAGEMENT PLAN – REQUIRED ELEMENTS A Sewer System Management Plan (Plan) is a living planning document that documents ongoing local sewer system management program activities, procedures, and decision-making – at the scale necessary to address the size and complexity of the subject sanitary sewer system(s). This Plan may incorporate other programs and other plans by reference, to address short-term and long-term system resilience through:
• Proactive planning and decision-making;
• Local government ordinances;
• Updated operations and maintenance activities and procedures; • Implementation of capital improvements;
• Sufficient local budget to support staff resources, contractors, equipment, and training; and • Updated training of staff and contractors.

The Enrollee’s development, update, and implementation of a Sewer System Management Plan addressing the requirements of this Attachment is an enforceable component of this General Order. As specified in Provision 6.1 (Enforcement Provisions) of this General Order, consistent with the Water Code and the State Water Board Enforcement Policy, the State Water Board or a Regional Water Board may consider the Enrollee’s efforts in implementing an effective Sewer System Management Plan to prevent, contain, control, and mitigate spills when considering Water Code section 13327 factors to determine necessary enforcement of this General Order.

This Attachment includes the following required elements that the Enrollee shall address in its Plan and subsequent updates. The Enrollee shall identify any requirement in this Attachment that is not applicable to the Enrollee’s sewer system and shall explain in its Plan why the requirement is not applicable.

1. SEWER SYSTEM MANAGEMENT PLAN GOAL AND INTRODUCTION
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 of the Enrollee’s sanitary sewer system(s), (2) reduce and prevent spills, and (3) contain and mitigate spills that do occur.

The Plan must include a narrative Introduction section that discusses the following items:

1.1. Regulatory Context
The Plan Introduction section must provide a general description of the local sewer system management program and discuss Plan implementation and updates. 1302
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1.2. Sewer System Management Plan Update Schedule
The Plan Introduction section must include a schedule for the Enrollee to update the Plan, including the schedule for conducting internal audits. The schedule must include milestones for incorporation of activities addressing prevention of sewer spills.

1.3. Sewer System Asset Overview
The Plan Introduction section must provide a description of the Enrollee-owned assets and service area, including but not limited to:
• Location, including county(ies);
• Service area boundary;
• Population and community served;
• System size, including total length in miles, length of gravity mainlines, length of pressurized (force) mains, and number of pump stations and siphons; • Structures diverting stormwater to the sewer system;
• Data management systems;
• Sewer system ownership and operation responsibilities between Enrollee and private entities for upper and lower sewer laterals;
• Estimated number or percent of residential, commercial, and industrial service connections; and
• Unique service boundary conditions and challenge(s).

Additionally, the Plan Introduction section must provide reference to the Enrollee’s upto-date map of its sanitary sewer system, as required in section 4.1 (Updated Map of Sanitary Sewer System) of this Attachment.

2. ORGANIZATION
The Plan must identify organizational staffing responsible and integral for implementing the local Sewer System Management Plan through an organization chart or similar narrative documentation that includes:
• The name of the Legally Responsible Official as required in section 5.1 (Designation of a Legally Responsible Official) of this General Order; • The position titles, telephone numbers, and email addresses for management, administrative, and maintenance positions responsible for implementing specific Sewer System Management Plan elements;
• Organizational lines of authority; and
• 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 1303
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REQUIRED ELEMENTS December 6, 2022
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health officer, county environmental health agency, and State Office of Emergency Services.)

3. LEGAL AUTHORITY
The Plan 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:
• Prevent illicit discharges into its sanitary sewer system from inflow and infiltration (I&I); unauthorized stormwater; chemical dumping; unauthorized debris; roots; fats, oils, and grease; and trash, including rags and other debris that may cause blockages;
• 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; • Require that sewer system components and connections be properly designed and constructed;
• Ensure access for maintenance, inspection, and/or repairs for portions of the service lateral owned and/or operated by the Enrollee;
• Enforce any violation of its sewer ordinances, service agreements, or other legally binding procedures; and
• Obtain easement accessibility agreements for locations requiring sewer system operations and maintenance, as applicable.

4. OPERATION AND MAINTENANCE PROGRAM
The Plan must include the items listed below that are appropriate and applicable to the Enrollee’s system.

4.1. Updated Map of Sanitary Sewer System
An up-to-date map(s) of the sanitary 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 manholes, pumping facilities, pressure pipes and valves, and applicable stormwater conveyance facilities within the sewer system service area boundaries.

4.2. Preventive Operation and Maintenance Activities
A scheduling system and a data collection system for preventive operation and maintenance activities conducted by staff and contractors.

The scheduling system must include:
• Inspection and maintenance activities;
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REQUIRED ELEMENTS December 6, 2022
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• Higher-frequency inspections and maintenance of known problem areas, including areas with tree root problems;
• Regular visual and closed-circuit television (CCTV) inspections of manholes 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.

4.3. Training
In-house and external training provided on a regular basis for sanitary sewer system operations and maintenance staff and contractors. The training must cover:
• The requirements of this General Order;
• The Enrollee’s Spill Emergency Response Plan procedures and practice drills; • Skilled estimation of spill volume for field operators; and • Electronic CIWQS reporting procedures for staff submitting data.

4.4. Equipment Inventory
An inventory of sewer system equipment, including the identification of critical replacement and spare parts.

5. DESIGN AND PERFORMANCE PROVISIONS
The Plan must include the following items as appropriate and applicable to the Enrollee’s system:

5.1. Updated Design Criteria and Construction Standards and Specifications 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. If existing design criteria and construction standards are deficient to address the necessary component-specific hydraulic capacity as specified in section 8 (System Evaluation, Capacity Assurance and Capital Improvements) of this Attachment, the procedures must include component-specific evaluation of the design criteria.

5.2. Procedures and Standards
Procedures, and standards for the inspection and testing of newly constructed, newly installed, repaired, and rehabilitated system pipelines, pumps, and other equipment and appurtenances.
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6. SPILL EMERGENCY RESPONSE PLAN
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:
• Notify primary responders, appropriate local officials, and appropriate regulatory agencies of a spill in a timely manner;
• Notify other potentially affected entities (for example, health agencies, water suppliers, etc.) of spills that potentially affect public health or reach waters of the State;
• Comply with the notification, monitoring and reporting requirements of this General Order, State law and regulations, and applicable Regional Water Board Orders; • Ensure that appropriate staff and contractors implement the Spill Emergency Response Plan and are appropriately trained;
• Address emergency system operations, traffic control and other necessary response activities;
• Contain a spill and prevent/minimize discharge to waters of the State or any drainage conveyance system;
• Minimize and remediate public health impacts and adverse impacts on beneficial uses of waters of the State;
• Remove sewage from the drainage conveyance system;
• Clean the spill area and drainage conveyance system in a manner that does not inadvertently impact beneficial uses in the receiving waters; • Implement technologies, practices, equipment, and interagency coordination to expedite spill containment and recovery;
• Implement pre-planned coordination and collaboration with storm drain agencies and other utility agencies/departments prior, during, and after a spill event; • Conduct post-spill assessments of spill response activities; • Document and report spill events as required in this General Order; and • Annually, review and assess effectiveness of the Spill Emergency Response Plan, and update the Plan as needed.
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7. SEWER PIPE BLOCKAGE CONTROL PROGRAM
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. If 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:
• An implementation plan and schedule for a public education and outreach program that promotes proper disposal of pipe-blocking substances; • A plan and schedule for the disposal of pipe-blocking substances 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 substances generated within a sanitary sewer system service area; • The legal authority to prohibit discharges to the system and identify measures to prevent spills and blockages;
• Requirements to install grease removal devices (such as traps or interceptors), design standards for the removal devices, maintenance requirements, best management practices requirements, recordkeeping and reporting requirements; • Authority to inspect grease producing facilities, enforcement authorities, and whether the Enrollee has sufficient staff to inspect and enforce the fats, oils, and grease ordinance;
• An identification of sanitary sewer system sections subject to fats, oils, and grease blockages and establishment of a cleaning schedule for each section; and • Implementation of source control measures for all sources of fats, oils, and grease reaching the sanitary sewer system for each section identified above.

8. SYSTEM EVALUATION, CAPACITY ASSURANCE AND CAPITAL IMPROVEMENTS The Plan must include procedures and activities for:
• Routine evaluation and assessment of system conditions; • Capacity assessment and design criteria;
• Prioritization of corrective actions; and
• A capital improvement plan.

8.1 System Evaluation and Condition Assessment
The Plan must include procedures to:
• Evaluate the sanitary sewer system assets utilizing the best practices and technologies available;
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• Identify and justify the amount (percentage) of its system for its condition to be assessed each year;
• Prioritize the condition assessment of system areas that:
o Hold a high level of environmental consequences if vulnerable to collapse, failure, blockage, capacity issues, or other system deficiencies; o Are located in or within the vicinity of surface waters, steep terrain, high groundwater elevations, and environmentally sensitive areas; o Are within the vicinity of a receiving water with a bacterial-related impairment on the most current Clean Water Act section 303(d) List;
• Assess the system conditions using visual observations, video surveillance and/or other comparable system inspection methods;
• 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;
• Maintain documents and recordkeeping of system evaluation and condition assessment inspections and activities; and
• Identify 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; wildfires; and increased power disruptions.

8.2. Capacity Assessment and 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:
• Dry-weather peak flow conditions that cause or contributes to spill events; • The appropriate design storm(s) or wet weather events that causes or contributes to spill events;
• The capacity of key system components; and
• Identify the major sources that contribute to the peak flows associated with sewer spills.

The capacity assessment must consider:
• 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;
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• Capacity of systems subject to increased infiltration and inflow due to larger and/or higher-intensity storm events as a result of climate change; • Increases of erosive forces in canyons and streams near underground and aboveground system components due to larger and/or higher-intensity storm events; • Capacity of major system elements to accommodate dry weather peak flow conditions, and updated design storm and wet weather events; and • Necessary redundancy in pumping and storage capacities.

8.3. 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.

8.4. Capital Improvement Plan
The capital improvement plan must include the following items:
• Project schedules including completion dates for all portions of the capital improvement program;
• Internal and external project funding sources for each project; and • Joint coordination between operation and maintenance staff, and engineering staff/consultants during planning, design, and construction of capital improvement projects; and Interagency coordination with other impacted utility agencies.

9. MONITORING, MEASUREMENT AND PROGRAM MODIFICATIONS
The Plan must include an Adaptive Management section that addresses Planimplementation effectiveness and the steps for necessary Plan improvement, including:
• Maintaining relevant information, including audit findings, to establish and prioritize appropriate Plan activities;
• Monitoring the implementation and measuring the effectiveness of each Plan Element;
• Assessing the success of the preventive operation and maintenance activities; • Updating Plan procedures and activities, as appropriate, based on results of monitoring and performance evaluations; and
• Identifying and illustrating spill trends, including spill frequency, locations and estimated volumes.
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10. INTERNAL AUDITS
The Plan shall include internal audit procedures, appropriate to the size and performance of the system, for the Enrollee to comply with section 5.4 (Sewer System Management Plan Audits) of this General Order.

11. COMMUNICATION PROGRAM
The Plan must include procedures for the Enrollee to communicate with:
• The public for:
o Spills and discharges resulting in closures of public areas, or that enter a source of drinking water, and
o 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:
o System operation, maintenance, and capital improvement-related activities. 1310
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ATTACHMENT E1 – NOTIFICATION, MONITORING, REPORTING AND

RECORDKEEPING REQUIREMENTS
Table of Contents

1. Notification Requirements......................................................................................... E1-3

1.1. Notification of Spills of 1,000 Gallons or Greater to the California Office of Emergency Services ...................................................................................... E1-3

1.2. Spill Notification Information........................................................................... E1-4

1.3. Notification of Spill Report Updates................................................................ E1-4

2. Spill-Specific Monitoring Requirements .................................................................... E1-5

2.1 Spill Location and Spread .............................................................................. E1-5

2.2 Spill Volume Estimation.................................................................................. E1-5

2.3. Receiving Water Monitoring ............................................................................E1-5

2.4. Safety and Access Exceptions ........................................................................E1-8

3. Reporting Requirements ............................................................................................E1-8

3.1. Reporting Requirements for Individual Category 1 Spill Reporting .................E1-8

3.2. Reporting Requirements for Individual Category 2 Spill Reporting ...............E1-12

3.3. Monthly Certified Spill Reporting for Category 3 Spills..................................E1-14

3.4. Monthly Certified Spill Reporting for Category 4 Spills..................................E1-16

3.5. Amended Certified Spill Reports for Category 3 Spills ..................................E1-16

3.6. Annual Certified Spill Reporting of Category 4 and/or Lateral Spills .............E1-16

3.7. Monthly Certification of “No-Spills” or “Category 4 Spills” and/or “Non-Category 1 Lateral Spills” ................................................................................................E1-16

3.8. Electronic Sanitary Sewer System Service Area Boundary Map...................E1-17

3.9. Annual Report (Previously termed as Collection System Questionnaire in General Order 2006-0003-DWQ)..................................................................E1-17

3.10. Sewer System Management Plan Audit Reporting Requirements ................E1-19

3.11. Sewer System Management Plan Reporting Requirements .........................E1-19

4. Recordkeeping Requirements .................................................................................E1-20

4.1. Recordkeeping Time Period..........................................................................E1-20

4.2. Availability of Documents ..............................................................................E1-20

4.3. Spill Reports..................................................................................................E1-20

4.4. Recordkeeping of Category 4 Spills and Non-Category 1 Lateral Spills .......E1-21

4.5. Sewer System Telemetry Records................................................................E1-22

4.6. Sewer System Management Plan Implementation Records .........................E1-22

4.7. Audit Records................................................................................................E1-23 1311
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4.8. Equipment Records.......................................................................................E1-23

4.9. Work Orders..................................................................................................E1-23 1312
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ATTACHMENT E1– NOTIFICATION, MONITORING, REPORTING AND RECORDKEEPING

REQUIREMENTS
The Notification Requirements (section 1), Spill-specific Monitoring Requirements (section 2), Reporting Requirements (section 3) and Recordkeeping Requirements (section 4) in this Attachment are pursuant to Water Code section 13267 and section 13383, and are an enforceable component of this General Order. For the purpose of this General Order, the term:
• Notification means the notifying of appropriate parties of a spill event or other activity. • Spill-specific Monitoring means the gathering of information and data for a specific spill event to be reported or kept as records.
• Reporting means the reporting of information and data into the online California Integrated Water Quality System (CIWQS) Sanitary Sewer System Database. • Recordkeeping means the maintaining of information and data in an official records storage system.

Failure to comply with the notification, monitoring, reporting and recordkeeping requirements in this General Order may subject the Enrollee to civil liabilities of up to $10,000 a day per violation pursuant to Water Code section 13385; up to $1,000 a day per violation pursuant to Water Code section 13268; or referral to the Attorney General for judicial civil enforcement.

Water Code section 13193 et seq. requires the Regional Water Quality Control Boards (Regional Water Boards) and the State Water Resources Control Board (State Water Board) to collect sanitary sewer spill information for each spill event and make this information available to the public. Sanitary sewer spill information for each spill event includes but is not limited to: Enrollee contact information for each spill event, spill cause, estimated spill volume and factors used for estimation, location, date, time, duration, amount discharged to waters of the State, response and corrective action(s) taken.

1. NOTIFICATION REQUIREMENTS

1.1. 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 Enrollee 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:
• The Enrollee has knowledge of the spill; and
• 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. 1313
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1.2. Spill Notification Information
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;
• Spill incident description:
o Brief narrative of the spill event, and
o Spill incident location (address, city, and zip code) and closest cross streets and/or landmarks;
• 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);
• Amount of spill contained;
• Name of receiving water body receiving or potentially receiving discharge; and • Description of water body impact and/ or potential impact to beneficial uses.

1.3. 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 the 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. 1314
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2. SPILL-SPECIFIC MONITORING REQUIREMENTS

2.1 Spill Location and Spread
The Enrollee shall visually assess the spill location(s) and spread using photography, global positioning system (GPS), and other best available tools. The Enrollee shall document the critical spill locations, including:
• Photography and GPS coordinates for:
o The system location where spill originated.

For multiple appearance points of a single spill event, the points closest to the spill origin.
• Photography for:
o Drainage conveyance system entry locations,
o The location(s) of discharge into surface waters, as applicable, o Extent of spill spread, and
o The location(s) of clean up.

2.2 Spill Volume Estimation
To assess the approximate spill magnitude and spread, the Enrollee shall estimate the total spill volume using updated volume estimation techniques, calculations, and documentation for electronic reporting. The Enrollee shall update its notification and reporting of estimated spill volume (which includes spill volume recovered) as further information is gathered during and after a spill event.

2.3. Receiving Water Monitoring

2.3.1. Receiving Water Visual Observations
Through visual observations and use of best available spill volume-estimating techniques and field calculation techniques, the Enrollee shall gather and document the following information for spills discharging to surface waters:
• Estimated spill travel time to the receiving water;
• For spills entering a drainage conveyance system, estimated spill travel time from the point of entry into the drainage conveyance system to the point of discharge into the receiving water;
• Estimated spill volume entering the receiving water; and • Photography of:
o Waterbody bank erosion,
o Floating matter,
o Water surface sheen (potentially from oil and grease), 1315
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o Discoloration of receiving water, and
o Impact to the receiving water.

2.3.2. Receiving Water – Water Quality Sampling and Analysis For sewage spills in which an estimated 50,000 gallons or greater are discharged into a surface water, the Enrollee shall conduct the following water quality sampling no later than 18 hours after the Enrollee’s knowledge of a potential discharge to a surface water:
• Collect one water sample, each day of the duration of the spill, at:
o The DCS-001 location as described in section 2.3.4 (Receiving Water Sampling Locations) of this Attachment, if sewage discharges to a surface water via a drainage conveyance system; and/or
o Each of the three receiving water sampling locations in section 2.3.4 (Receiving Water Sampling Locations) of this Attachment;
If the receiving water has no flow during the duration of the spill, the Enrollee must report “No Sampling Due To No Flow” for its receiving water sampling locations.

The Enrollee shall analyze the collected receiving water samples for the following constituents per section 2.3.3 (Water Quality Analysis Specifications) of this Attachment:
• Ammonia, and
• Appropriate bacterial indicator(s) per the applicable Basin Plan water quality objectives, including one or more of the following, unless directed otherwise by the Regional Water Board:
o Total Coliform Bacteria
o Fecal Coliform Bacteria
o E-coli
o Enterococcus
Dependent on the receiving water(s), sampling of bacterial indicators shall be sufficient to determine post-spill (after the spill) compliance with the water quality objectives and bacterial standards of the California Ocean Plan or the California Inland Surface Water Enclosed Bays, and Estuaries Plan, including the frequency and/or number of post-spill receiving water samples as may be specified in the applicable plans.

The Enrollee shall collect and analyze additional samples as required by the applicable Regional Water Board Executive Officer or designee.
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2.3.3. Water Quality Analysis Specifications
Spill monitoring must be representative of the monitored activity (40 Code of Federal Regulations section 122.41(j)(1)).

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

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

2.3.4. Receiving Water Sampling Locations
The Enrollee shall collect receiving water samples at the following locations.

Sampling of Flow in Drainage Conveyance System (DCS) Prior to Discharge Sampling
Location Sampling Location Description
DCS-001 A point in a drainage conveyance system before the drainage conveyance system flow discharges into a receiving water.

Receiving Surface Water Sampling (RSW)1
Sampling
Location Sampling Location Description
RSW-001
Point of Discharge
A point in the receiving water where sewage initially enters the receiving water.

RSW-001U:

Upstream of Point
of Discharge
A point in the receiving water, upstream of the point of sewage discharge, to capture ambient conditions absent of sewage discharge impacts.
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Sampling
Location Sampling Location Description
RSW-001D:

Downstream of
Point of Discharge
A point in the receiving water, downstream of the point of sewage discharge, where the spill material is fully mixed with the receiving water.
1 The Enrollee must use its best professional judgment to determine the upstream and downstream distances based on receiving water flow, accessibility to upstream/downstream waterbody banks, and size of visible sewage plume.

2.4. Safety and Access Exceptions
If the Enrollee encounters access restrictions or unsafe conditions that prevents its compliance with spill response requirements or monitoring requirements in this General Order, the Enrollee shall provide documentation of access restrictions and/or safety hazards in the corresponding required report.

3. REPORTING REQUIREMENTS
All reporting required in this General Order must be submitted electronically to the online CIWQS Sanitary Sewer System Database (https://ciwqs.waterboards.ca.gov), unless specified otherwise in this General Order. Electronic reporting may solely be conducted by a Legally Responsible Official or Data Submitter(s) previously designated by the Legally Responsible Official, as required in section 5.8 (Designation of Data Submitters) of this General Order.

The Enrollee shall report any information that is protected by the Homeland Security Act, by email to [email protected], with a brief explanation of the protection provided by the Homeland Security Act for the subject report to be protected from unauthorized disclosure and/or public access, and for official Water Board regulatory purposes only.

3.1. Reporting Requirements for Individual Category 1 Spill Reporting

3.1.1. Draft Spill Report for Category 1 Spills
Within three (3) business days of the Enrollee’s knowledge of a Category 1 spill, the Enrollee shall submit a Draft Spill Report to the online CIWQS Sanitary Sewer System Database.

The Draft Spill Report must, at minimum, include the following items:

1. Contact information: Name and telephone number of Enrollee contact person to respond to spill-specific questions;

2. Spill location name;

3. Date and time the Enrollee was notified of, or self-discovered, the spill;

4. Operator arrival time;
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5. Estimated spill start date and time;

6. Date and time the Enrollee notified the California Office of Emergency Services, and the assigned control number;

7. Description, photographs, and GPS coordinates of the system location where the spill originated;
o If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;

8. Estimated total spill volume exiting the system;

9. Description and photographs of the extent of the spill and spill boundaries;

10. Did the spill reach a drainage conveyance system? If Yes:
o Description of the drainage conveyance system transporting the spill; o Photographs of the drainage conveyance system entry location(s); o Estimated spill volume fully recovered from the drainage conveyance system; o Estimated spill volume remaining within the drainage conveyance system;

11. Description and photographs of all discharge point(s) into the surface water;

12. Estimated spill volume that discharged to surface waters; and

13. Estimated total spill volume recovered.

3.1.2. Certified Spill Report for Category 1 Spills
Within 15 calendar days of the spill end date, the Enrollee shall submit a Certified Spill Report for Category 1 spills, to the online CIWQS Sanitary Sewer System Database.

Upon completion of the Certified Spill Report, the online CIWQS Sanitary Sewer System Database will issue a final spill event identification number.

The Certified Spill Report must, at minimum, include the following mandatory information in addition to all information in the Draft Spill Report per section 3.1.1 (Draft Spill Report for Category 1 Spills) above:

1. Description of the spill event destination(s), including GPS coordinates if available, that represent the full spread and reach of the spill;

2. Spill end date and time;

3. Description of how the spill volume estimations were calculated, including at a minimum:
o The methodology, assumptions and type of data relied upon, such as supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and o The methodology(ies), assumptions and type of data relied upon for estimations of the spill start time and the spill end time;
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4. Spill cause(s) (for example, root intrusion, grease deposition, etc.);

5. System failure location (for example, main, lateral, pump station, etc.);

6. Description of the pipe material, and estimated age of the pipe material, at the failure location;

7. Description of the impact of the spill;

8. Whether or not the spill was associated with a storm event;

9. Description of spill response activities including description of immediate spill containment and cleanup efforts;

10. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps;

11. Spill response completion date;

12. Detailed narrative of investigation and investigation findings of cause of spill;

13. Reasons for an ongoing investigation (as applicable) and the expected date of completion;

14. Name and type of receiving water body(s);

15.Description of the water body(s), including but not limited to:
o Observed impacts on aquatic life,
o Public closure, restricted public access, temporary restricted use, and/or posted health warnings due to spill,
o Responsible entity for closing/restricting use of water body, and o Number of days closed/restricted as a result of the spill.

16.Whether or not the spill was located within 1,000 feet of a municipal surface water intake; and

17. If water quality samples were collected, identify sample locations and the parameters the water quality samples were analyzed for. If no samples were taken, Not Applicable shall be selected.

3.1.3. Spill Technical Report for Individual Category 1 Spill in which 50,000 Gallons or Greater Discharged into a Surface Water
For any spill in which 50,000 gallons or greater discharged into a surface water, within 45 calendar days of the spill end date, the Enrollee shall submit a Spill Technical Report to the online CIWQS Sanitary Sewer System Database. The Spill Technical Report, at minimum, must include the following information:

1. Spill causes and circumstances, including at minimum:
o Complete and detailed explanation of how and when the spill was discovered; 1320
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o Photographs illustrating the spill origin, the extent and reach of the spill, drainage conveyance system entrance and exit, receiving water, and post-cleanup site conditions;
o Diagram showing the spill failure point, appearance point(s), the spill flow path, and ultimate destinations;
o Detailed description of the methodology employed, and available data used to calculate the discharge volume and, if applicable, the recovered spill volume; o Detailed description of the spill cause(s);
o Description of the pipe material, and estimated age of the pipe material, at the failure location;
o Description of the impact of the spill;
o Copy of original field crew records used to document the spill; and o Historical maintenance records for the failure location.

2. Enrollee’s response to the spill:
o Chronological narrative description of all actions taken by the Enrollee to terminate the spill;
o Explanation of how the Sewer System Management Plan Spill Emergency Response Plan was implemented to respond to and mitigate the spill; and o Final corrective action(s) completed and a schedule for planned corrective actions, including:
▪ Local regulatory enforcement action taken against an illicit discharge in response to this spill, as applicable,
▪ Identifiable system modifications, and operation and maintenance program modifications needed to prevent repeated spill occurrences, and ▪ Necessary modifications to the Emergency Spill Response Plan to incorporate lessons learned in responding to and mitigating the spill.

3. Water Quality Monitoring, including at minimum:
o Description of all water quality sampling activities conducted; o List of pollutant and parameters monitored, sampled and analyzed; as required in section 2.3 (Receiving Water Monitoring) of this Attachment; o Laboratory results, including laboratory reports;
o Detailed location map illustrating all water quality sampling points; and o Other regulatory agencies receiving sample results (if applicable).

4. Evaluation of spill impact(s), including a description of short-term and long-term impact(s) to beneficial uses of the surface water.
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3.1.4. Amended Certified Spill Reports for Individual Category 1 Spills The Enrollee shall update or add additional information to a Certified Spill Report within 90 calendar days of the spill end date by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database.

The Enrollee shall certify the amended report.

After 90 calendar days, the Enrollee shall contact the State Water Board at [email protected] to request to amend a Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the Amended Spill Report due date.

3.2. Reporting Requirements for Individual Category 2 Spill Reporting

3.2.1. Draft Spill Report for Category 2 Spills
Within three (3) business days of the Enrollee’s knowledge of a Category 2 spill, the Enrollee shall submit a Draft Spill Report to the online CIWQS Sanitary Sewer System Database.

The Draft Spill Report must, at minimum, include the following items:

1. Contact information: Name and telephone number of Enrollee contact person to respond to spill-specific questions;

2. Spill location name;

3. Date and time the Enrollee was notified of, or self-discovered, the spill;

4. Operator arrival time;

5. Estimated spill start date and time;

6. Date and time the Enrollee notified the California Office of Emergency Services, and the assigned control number;

7. Description, photographs, and GPS coordinates of the system location where the spill originated;
If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;

8. Estimated total spill volume exiting the system;

9. Description and photographs of the extent of the spill and spill boundaries;

10. Did the spill reach a drainage conveyance system? If Yes:
o Description of the drainage conveyance system transporting the spill; o Photographs of the drainage conveyance system entry location(s); o Estimated spill volume fully recovered from the drainage conveyance system; o Estimated spill volume remaining within the drainage conveyance system; 1322
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o Estimated spill volume discharged to a groundwater infiltration basin or facility, if applicable; and

11. Estimated total spill volume recovered.

3.2.2. Certified Spill Report for Category 2 Spills
Within 15 calendar days of the spill end date, the Enrollee shall submit a Certified Spill Report for the Category 2 spill, to the online CIWQS Sanitary Sewer System Database (https://ciwqs.waterboards.ca.gov). Upon completion of the Certified Spill Report, the online CIWQS Sanitary Sewer System Database will issue a final spill event identification number.

The Certified Spill Report must, at minimum, include the following mandatory information in addition to all information in the Draft Spill Report per section 3.2.1 (Draft Spill Report for Category 2 Spills) above:

1. Description of the spill event destination(s), including GPS coordinates if available, that represent the full spread and reach of the spill;

2. Spill end date and time;

3. Description of how the spill volume estimations were calculated, including at a minimum:
o The methodology, assumptions and type of data relied upon, such as supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and o The methodology(ies), assumptions and type of data relied upon for estimations of the spill start time and the spill end time;

4. Spill cause(s) (for example, root intrusion, grease deposition, etc.);

5. System failure location (for example, main, pump station, etc.);

6. Description of the pipe/infrastructure material, and estimated age of the pipe material, at the failure location;

7. Description of the impact of the spill;

8. Whether or not the spill was associated with a storm event;

9. Description of spill response activities including description of immediate spill containment and cleanup efforts;

10. Description of spill corrective action, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of major milestones for those steps;

11. Spill response completion date;

12. Detailed narrative of investigation and investigation findings of cause of spill;

13. Reasons for an ongoing investigation (as applicable) and the expected date of completion; and
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14. Whether or not the spill was located within 1,000 feet of a municipal surface water intake.

3.2.3. Amended Certified Spill Reports for Individual Category 2 Spills The Enrollee shall update or add additional information to a Certified Spill Report within 90 calendar days of the spill end date by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database.

The Enrollee shall certify the amended report.

After 90 calendar days, the Enrollee shall contact the State Water Board at [email protected] to request to amend a Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the Amended Spill Report due date.

3.3. Monthly Certified Spill Reporting for Category 3 Spills The Enrollee shall report and certify all Category 3 spills to the online CIWQS Sanitary Sewer System Database within 30 calendar days after the end of the month in which the spills occurred. (For example, all Category 3 spills occurring in the month of February shall be reported and certified by March 30th). After the Legally Responsible Official certifies the spills, the online CIWQS Sanitary Sewer System Database will issue a spill event identification number for each spill.

The monthly reporting of all Category 3 spills must include the following items for each spill:

1. Contact information: Name and telephone number of Enrollee contact person to respond to spill-specific questions;

2. Spill location name;

3. Date and time the Enrollee was notified of, or self-discovered, the spill;

4. Operator arrival time;

5. Estimated spill start date and time;

6. Description, photographs, and GPS coordinates where the spill originated:
o If a single spill event results in multiple appearance points, provide GPS coordinates for the appearance point closest to the failure point and describe each additional appearance point in the spill appearance point explanation field;

7. Estimated total spill volume exiting the system;

8. Description and photographs of the extent of the spill and spill boundaries;

9. Did the spill reach a drainage conveyance system? If Yes:
o Description of the drainage conveyance system transporting the spill; o Photographs of the drainage conveyance system entry locations(s); o Estimated spill volume fully recovered from the drainage conveyance system; and 1324
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o Estimated spill volume discharged to a groundwater infiltration basis or facility, if applicable.

10. Estimated total spill volume recovered;

11. Description of the spill event destination(s), including GPS coordinates, if available, that represent the full spread and reaches of the spill;

12. Spill end date and time;

13. Description of how the spill volume estimations were calculated, including, at minimum:
o The methodology and type of data relied upon, including supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and o The methodology and type of data relied upon to estimate the spill start time, on-going spill rate at time of arrival (if applicable), and the spill end time;

14. Spill cause(s) (for example, root intrusion, grease deposition, etc.);

15. System failure location (for example, main, pump station, etc.);

16. Description of the pipe/infrastructure material, and estimated age of the pipe/infrastructure material, at the failure location;

17. Description of the impact of the spill;

18. Whether or not the spill was associated with a storm event;

19. Description of spill response activities including description of immediate spill containment and cleanup efforts;

20. Description of spill corrective actions, including steps planned or taken to reduce, eliminate, and prevent reoccurrence of the spill, and a schedule of the major milestones for those steps; including, at minimum:
o Local regulatory enforcement action taken against an illicit discharge in response to this spill, as applicable, and
o Identifiable system modifications, and operation and maintenance program modifications needed to prevent repeated spill occurrences at the same spill event location, including:
▪ Adjusted schedule/method of preventive maintenance,
▪ Planned rehabilitation or replacement of sanitary sewer asset, ▪ Inspected, repaired asset(s), or replaced defective asset(s), ▪ Capital improvements,
▪ Documentation verifying immediately implemented system modifications and operating/maintenance modifications,
▪ Description of spill response activities,
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▪ Spill response completion date, and
▪ Ongoing investigation efforts, and expected completion date of investigation to determine the full cause of spill;

21. Detailed narrative of investigation and investigation findings of cause of spill.

3.4. Monthly Certified Spill Reporting for Category 4 Spills The Enrollee shall report and certify the estimated total spill volume exiting the sanitary sewer system, and the total number of all Category 4 spills to the online CIWQS Sanitary Sewer System Database, within 30 calendar days after the end of the month in which the spills occurred.

3.5. Amended Certified Spill Reports for Category 3 Spills Within 90 calendar days of the certified Spill Report due date, the Enrollee may update or add additional information to a certified Spill Report by amending the report or by adding an attachment to the Spill Report in the online CIWQS Sanitary Sewer System Database. The Enrollee shall certify the amended report.

After 90 calendar days, the Legally Responsible Official shall contact the State Water Board at [email protected] to request to amend a certified Spill Report. The Legally Responsible Official shall submit justification for why the additional information was not reported within the 90-day timeframe for amending the certified Spill Report, as provided above.

3.6. Annual Certified Spill Reporting of Category 4 and/or Lateral Spills For all Category 4 spills and spills from its owned and/or operated laterals that are caused by a failure or blockage in the lateral and that do not discharge to a surface water, the Enrollee shall:
• Maintain records per section 4.4. of this Attachment; The Enrollee shall provide records upon request by State Water Board or Regional Water Board staff.
• Annually upload and certify a report, in an appropriate digital format, of all recordkeeping of spills to the online CIWQS Sanitary Sewer System Database, by February 1st after the end of the calendar year in which the spills occurred.

A spill from an Enrollee-owned and/or operated lateral that discharges to a surface water is a Category 1 spill; the Enrollee shall report all Category 1 spills per section 3.1 of Attachment E1 (Notification, Monitoring, Reporting and Recordkeeping Requirements) of this General Order.

3.7. Monthly Certification of “No-Spills” or “Category 4 Spills” and/or “Non-Category 1 Lateral Spills”
If either (1) no spills occur during a calendar month or (2) only Category 4, and/or Enrollee-owned and/or operated lateral spills (that do not discharge to a surface water) occur during a calendar month, the Enrollee shall certify, within 30 calendar days after 1326
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the end of each calendar month, either a “No-Spill” certification statement, or a “Category 4 Spills” and/or “Non-Category 1 Lateral Spills” certification statement, in the online CIWQS Sanitary Sewer System Database, certifying that there were either no spills, or Category 4 and/or Non-Category 1 Lateral Spills that will be reported annually (per section 3.6 of this Attachment) for the designated month.

If a spill starts in one calendar month and ends in a subsequent calendar month, and the Enrollee has no further spills of any category, in the subsequent calendar month, the Enrollee shall certify “no-spills” for the subsequent calendar month.

If the Enrollee has no spills from its systems during a calendar month, but the Enrollee voluntarily reported a spill from a private lateral or a private system, the Enrollee shall certify “no-spills” for that calendar month.

If the Enrollees has spills from its owned and/or operated laterals during a calendar month, the Enrollee shall not certify “no spills” for that calendar month.

3.8. Electronic Sanitary Sewer System Service Area Boundary Map The Legally Responsible Official shall submit, to the State Water Board, an up-to-date electronic spatial map of its sewer system service area boundaries. The map must be in accordance with section 5.14 (Electronic Sanitary Sewer System Service Area Boundary Map) of this General Order and the specification provided on the statewide Sanitary Sewer Systems program website. The map must include the location of wastewater treatment facility(ies) that treats the sewer system waste, if in the same sewer service boundary.

By the Effective Date of this General Order, specifications for the electronic sanitary sewer service area boundary map format will be provided on the statewide Sanitary Sewer Systems Order program website.

3.9. Annual Report (Previously termed as Collection System Questionnaire in General Order 2006-0003-DWQ)
A new Enrollee shall complete and submit its first certified Annual Report into the online CIWQS Sanitary Sewer System Database, within 30 days of obtaining a CIWQS account; Subsequent Annual Reports are due by April 1 of each year.

All enrollees shall update their previous year’s Annual Report, by April 1 of each year after the Effective Date of this General Order, for each calendar year (January 1 through December 31).

The Annual Report must be entered directly into the online CIWQS Sanitary Sewer System Database. The Enrollee’s Legally Responsible Official shall certify the Annual Report as instructed in CIWQS;
The Annual Report must address, and update as applicable, the following items:
• Population served;
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• Updated sewer system service area boundary map, if service area boundary has changed from original map submitted per section 5.14 (Electronic Sanitary Sewer System Service Area Boundary Map) of this General Order; • Number of system operation and maintenance staff:
o Entry level (less than two years of experience),
o Journey level (greater than two years of experience), o Supervisory level, and
o Managerial level;
• Number of operation and maintenance staff certified as a certified collection system operator by the California Water Environmental Association (CWEA), with:
o Corresponding number of certified collection system operator grade levels (Grade I, II, III, IV, and V);
• System information:
o Miles of system gravity and force mains,
o Number of upper and lower service laterals connected to system, o Estimated number of upper and lower laterals owned and/or operated by the Enrollee,
o Portion of laterals that is Enrollee’s responsibility, o Average age the major components of system infrastructure, o Number and age of pump stations, and
o Estimated total miles of the system pipeline not accessible for maintenance; • Name and location of the treatment plant(s) receiving sanitary sewer system’s waste;
• Name of satellite sewer system tributaries;
• Number of system’s gravity sewer above or underground crossings of water bodies throughout system;
• Number of force main (pressurized pipe) above or underground crossings of water bodies throughout system;
• Number of siphons used to convey waste throughout the sewer system; • Miles of sewer system cleaned;
• Miles of sewer system video inspected, or comparable (i.e., video closed-circuit television or alternative inspection methods);
• System Performance Evaluation as specified in section 5.11 (System Performance Analysis) of this General Order;
• Major spill causes (for example, root intrusion, grease deposition); 1328
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• System infrastructure failure points (for example, main, pump station, lateral, etc.); • Ongoing spill investigations; and
• Actions taken to address system deficiencies.

3.10. Sewer System Management Plan Audit Reporting Requirements The Enrollee shall submit its Sewer System Management Plan Audit and other pertinent audit information, in accordance with section 5.4 (Sewer System Management Plan Audits) of this General Order, to the online CIWQS Sanitary Sewer System Database by six (6) months after the end of the 3-year audit period.

If a Sewer System Management Plan Audit is not conducted as required: the Enrollee shall:
• Update the online CIWQS Sanitary Sewer System Database and select the justification for not conducting the Audit; and
• Notify its corresponding Regional Water Board (see Attachment F (Regional Water Quality Control Board Contact Information)) of the justification for the lapsed requirements.

The Enrollee’s reporting of a justification for not conducting a timely Audit does not justify non-compliance with this General Order. The Enrollee shall:
• Submit the late Audit as required in this General Order; and • Comply with subsequent Audit requirements and due dates corresponding with the original audit cycle.

3.11. Sewer System Management Plan Reporting Requirements For an Existing Enrollee previously regulated by Order 2006-0003-DWQ: Within every six (6) years after the required due date of its last Plan Update, the Legally Responsible Official shall upload and certify a local governing entity-approved Sewer System Management Plan Update to the online CIWQS Sanitary Sewer System Database. If the electronic document format or size capacity prevents the electronic upload of the Plan, the Legally Responsible Official shall report an electronic link to its updated Sewer System Management Plan posted on its own website.

Order 2006-0003-DWQ required each enrollee to develop its initial Sewer System Management Plan per the following schedule, with required Plan updates at a frequency of 5-years thereafter:

Systems serving populations: Greater than 100,000: May 2, 2009 Between 100,000 and 10,000: August 2, 2009
Between 10,000 and 2,500: May 2, 2010
Less than 2,500: August 2, 2010
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This Order carries forth the previously-required Plan Update schedule per Order 2006-0003-DWQ. Per the six-year Plan Update frequency required in this Order, the Enrollee shall upload and certify its first Plan Update, to the online CIWQS Sanitary Sewer System Database by the following due dates, with subsequent Plan Updates at the frequency of six years thereafter:

Systems serving populations: Greater than 100,000: May 2, 2025 Between 100,000 and 10,000: August 2, 2025
Between 10,000 and 2,500: May 2, 2026
Less than 2,500: August 2, 2026
For a New Enrollee: Within twelve (12) months of its Application for Enrollment Approval date, the Legally Responsible Official of a new Enrollee shall upload and certify a local governing entity-approved Sewer System Management Plan to the online CIWQS Sanitary Sewer System Database. If electronic document format or size capacity prevents the electronic upload of the Plan, the Legally Responsible Official shall report an electronic link to its Sewer System Management Plan posted on its own website. The due date for subsequent 6-year Plan updates, is six (6) years from the submittal due date of the new Enrollee’s first Sewer System Management Plan.

4. RECORDKEEPING REQUIREMENTS
The Enrollee shall maintain records to document compliance with the provisions of this General Order, and previous General Order 2006-0003-DWQ as applicable, for each sanitary sewer system owned, including any required records generated by an Enrollee’s contractor(s).

4.1. Recordkeeping Time Period
The Enrollee shall maintain records of documents required in this Attachment, including records collected for compliance with this General Order, and records collected in accordance with previous General Order 2006-0003-DWQ, for five (5) years.

4.2. Availability of Documents
The Enrollee shall make the records required in this General Order readily available, either electronic or hard copies, for review by Water Board staff during onsite inspections or through an information request.

4.3. Spill Reports
The Enrollee shall maintain records for each of the following spill-related events and activities:
• Spill event complaint, including but not limited to records documenting how the Enrollee responded to notifications of spills. Each complaint record must, at a minimum, include the following information:
o Date, time, and method of notification,
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o Date and time the complainant first noticed the spill, if available, o Narrative description of the complaint, including any information the caller provided regarding whether the spill has reached surface waters or a drainage conveyance system, if available,
o Complainant’s contact information, if available, and
o Final resolution of the complaint;
• Records documenting the steps and/or remedial action(s) undertaken by the Enrollee, using all available information, to comply with this General Order, and previous General Order 2006-0003-DWQ as applicable;
• Records documenting how estimate(s) of volume(s) and, if applicable, volume(s) of spill recovered were calculated;
• All California Office of Emergency Services notification records, as applicable; and • Records, in accordance with the Monitoring Requirements in this Attachment.

4.4. Recordkeeping of Category 4 Spills and Non-Category 1 Lateral Spills An Enrollee must maintain the following records for each individual Category 4 spill and for each individual non-Category 1 Enrollee-owned and/or operated lateral spill, and report in accordance to section 3.6 (Annual Certified Spill Reporting of Category 4 and/or Lateral Spills) of this Attachment.

Recordkeeping of Individual Category 4 Spill Information:

1. Contact information: Name and telephone number of Enrollee contact person to respond to spill-specific questions;

2. Spill location name;

3. Description and GPS coordinates for the system location where the spill originated;

4. Did the spill reach a drainage conveyance system? If Yes:
o Description of drainage conveyance system location,
o Estimated spill volume fully recovered within the drainage conveyance system, and
o Estimated spill volume remaining within the drainage conveyance system;

5. Estimated total spill volume exiting the sanitary sewer system;

6. Spill date and start time;

7. Spill cause(s) (for example, root intrusion, grease deposition, etc.);

8. System failure location (for example, main, pump station, etc.);

9. Description of spill response activities including description of immediate spill containment and cleanup efforts;

10. Description of how the volume estimation was calculated, including, at minimum:
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o The methodology and type of data relied upon, including supervisory control and data acquisition (SCADA) records, flow monitoring or other telemetry information used to estimate the volume of the spill discharged, and the volume of the spill recovered (if any volume of the spill was recovered), and o The methodology and type of data relied upon to estimate the spill start time, ongoing spill rate at time of arrival (if applicable), and the spill end time;

11. Description of implemented system modifications and operating/maintenance modifications.

Recordkeeping of Individual Lateral Spill Information:

1. Date and time the Enrollee was notified of, or self-discovered, the spill;

2. Location of individual spill;

3. Estimated individual spill volume;

4. Spill cause(s) (for example, root intrusion, grease deposition, etc.); and

5. Description of how the volume estimations were calculated.

Total Annual Spill Information:

1. Estimated total annual spill volume;

2. Description of spill corrective actions, including at minimum:
o Local regulatory enforcement action taken against the sewer lateral owner in response to a spill, as applicable, and
o System operation, maintenance and program modifications implemented to prevent repeated spill occurrences at the same spill location.

4.5. Sewer System Telemetry Records
The Enrollee shall maintain the following sewer system telemetry records if used to document compliance with this General Order, and previous General Order 2006-0003-DWQ as applicable, including spill volume estimates:
• Supervisory control and data acquisition (SCADA) system(s); • Alarm system(s);
• Flow monitoring device(s) or other instrument(s) used to estimate sewage flow rates, and/or volumes;
• Computerized maintenance management system records; and • Asset management-related records.

4.6. Sewer System Management Plan Implementation Records The Enrollee shall maintain records documenting the Enrollee’s implementation of its Sewer System Management Plan, including documents supporting its Sewer System Management Plan audits, corrections, modifications, and updates to the Sewer System Management Plan.
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4.7. Audit Records
The Enrollee shall maintain, at minimum, the following records pertaining to its Sewer System Management Plan audits, and other internal audits:
• Completed audit documents and findings;
• Name and contact information of staff and/or consultants that conducted or involved in the audit; and
• Follow-up actions based on audit findings.

4.8. Equipment Records
The Enrollee shall maintain a log of all owned and leased sewer system cleaning, operational, maintenance, construction, and rehabilitation equipment.

4.9. Work Orders
The Enrollee shall maintain record of work orders for operations and maintenance projects.
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MONITORING AND REPORTING REQUIREMENTS
E2 - 1
ATTACHMENT E2 – SUMMARY OF NOTIFICATION, MONITORING AND REPORTING

REQUIREMENTS
This Attachment provides a summary of notification, monitoring and reporting requirements, by spill category, and for Enrollee-owned and/or operated laterals as required in Attachment E1 of this General Order, for quick reference purposes only.

Table E2-1
Spill Category 1: Spills to Surface Waters
Spill
Requirement Due Method
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 California Office of Emergency Services
and obtain a notification control number.

California Office
of Emergency
Services at:
(800) 852-7550
(Section 1 of
Attachment E1)
Monitoring
• Conduct spill-specific monitoring;
• Conduct water quality sampling of the receiving
water within 18 hours of initial knowledge of spill of
50,000 gallons or greater to surface waters.
(Section 2 of
Attachment E1)
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.
(Section 3.1 of
Attachment E1)
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E2 - 2
Table E2-2
Spill Category 2: Spills of 1,000 Gallons or Greater That Do Not Discharge to Surface Waters
Spill
Requirements Due Method
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
(Section 1 of
Attachment E1)
Monitoring Conduct spill-specific monitoring.
(Section 2 of
Attachment E1)
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; and
• Submit Amended Spill Report within 90 calendar
days after the spill end date.
(Section 3.2 of
Attachment E1)
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Table E2-3
Spill Category 3: Spills of Equal or Greater than 50 Gallons and Less than 1,000 Gallons That Does Not Discharge to Surface Waters
Spill
Requirements Due Method
Notification Not Applicable Not Applicable
Monitoring Conduct spill-specific monitoring. (Section 2 of Attachment E1)
Reporting
• 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.
(Section 3.3 and 3.5 of
Attachment E1)
Table E2-4
Spill Category 4: Spills Less Than 50 Gallons That Do Not Discharge to Surface Waters Spill
Requirements Due Method
Notification Not Applicable Not Applicable
Monitoring Conduct spill-specific monitoring.
(Section 2 of Attachment
E1)
Reporting
• If, 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 1st
after the end of the calendar year in which the
spills occur.
(Section 3.4, 3.6, 3.7
and 4.4 of Attachment
E1)
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Table E2-5
Enrollee Owned and/or Operated Lateral Spills That Do Not Discharge to Surface Waters Spill
Requirements Due Method
Notification
Within two (2) hours of the Enrollee’s knowledge of a
spill of 1,000 gallons or greater, from an enrolleeowned and/or operated lateral, discharging or threatening to discharge to 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
(Section 1 of Attachment
E1)
Monitoring Conduct visual monitoring. (Section 2 of Attachment E1)
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 1 spill.
(Sections 3.6, 3.7 and

4.4 of Attachment E1)
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STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT F – REGIONAL WATER QUALITY CONTROL December 6, 2022

BOARD CONTACT INFORMATION
F - 1
ATTACHMENT F – REGIONAL WATER QUALITY CONTROL BOARD CONTACT

INFORMATION
This Attachment provides a map, list of counties, and contact information to assist the Enrollee in identifying the corresponding Regional Water Quality Control Board office, for all Regional Water Board notification requirements in this General Order.

Region 1 -- North Coast Regional Water Quality Control Board:

Del Norte, Glenn, Humboldt, Lake, Marin, Mendocino, Modoc, Siskiyou, Sonoma, and Trinity counties.

[email protected] or (707) 576-2220
Region 2 -- San Francisco Bay Regional Water Quality Control Board:

Alameda, Contra Costa, San Francisco, Santa Clara (Northern most part of Morgan Hill), San Mateo, Marin, Sonoma, Napa, Solano counties.

[email protected] or (510) 622-2369
Region 3 -- Central Coast Regional Water Quality Control Board:

Santa Clara (most of Morgan Hill), San Mateo (Southern portion), Santa Cruz, San Benito, Monterey, Kern (small portions), San Luis Obispo, Santa Barbara, Ventura (Northern portion) counties.

[email protected] or (805) 549-3147
Region 4 -- Los Angeles Regional Water Quality Control Board:

Los Angeles, Ventura counties (small portions of Kern and Santa Barbara counties). [email protected] or (213) 576-6600
1338
STATEWIDE SANITARY SEWER SYSTEMS GENERAL ORDER 2022-0103-DWQ ATTACHMENT F – REGIONAL WATER QUALITY CONTROL December 6, 2022

BOARD CONTACT INFORMATION
F - 2
Region 5 -- Central Valley Regional Water Quality Control Board:

Rancho Cordova (Sacramento) Office: Colusa, Lake, Sutter, Yuba, Sierra, Nevada, Placer, Yolo, Napa, (North East), Solano (West), Sacramento, El Dorado, Amador, Calaveras, San Joaquin, Contra Costa (East), Stanislaus, Tuolumne counties.

[email protected] or (916) 464-3291 Fresno Office: Fresno, Kern, Kings, Madera, Mariposa, Merced, and Tulare counties, and small portions of San Benito and San Luis Obispo counties.

[email protected] or (559) 445-5116 Redding Office: Butte, Glen, Lassen, Modoc, Plumas, Shasta, Siskiyou, and Tehama counties.

[email protected] or (530) 224-4845 Region 6 -- Lahontan Regional Water Quality Control Board:

Lake Tahoe Office: Alpine, Modoc (East), Lassen (East side and Eagle Lake), Sierra, Nevada, Placer, El Dorado counties.

[email protected] or (530) 542-5400 Victorville Office: Mono, Inyo, Kern (East), San Bernardino, Los Angeles (North East corner) counties.

[email protected] or (760) 241-6583 Region 7 -- Colorado River Basin Regional Water Quality Control Board:

Imperial county and portions of San Bernardino, Riverside, San Diego counties.

[email protected] or (760) 346-7491
Region 8 -- Santa Ana Regional Water Quality Control Board:

Orange, Riverside, San Bernardino counties.

[email protected] or (951) 782-4130
Region 9 -- San Diego Regional Water Quality Control Board:

San Diego county and portions of Orange and Riverside counties.

[email protected] or (619) 516-1990
End of Order 2022-0103-DWQ
1339

CITY OF BANNING

STAFF REPORT
TO: CITY COUNCIL
FROM: Douglas Schulze, City Manager
PREPARED BY: Emery Papp, Senior Planner
MEETING DATE: July 9, 2024
SUBJECT: Second Reading and Adoption of Ordinance 1605, Amending Table

17.08.020 of Section 17.08.020 of Article I of Chapter 17.08 of Division II of Title 17 of the City of Banning Municipal Code to Clarify that Affordable Housing Uses are Permitted by Right and are not Subject to Discretionary Action in Specified Zoning Districts as Required by State Law; and Making a Determination of Exemption from the California Environmental Quality Act
RECOMMENDATION:

Conduct second reading and adopt Ordinance 1605.

BACKGROUND:

The 6th Cycle Housing Element Update, which spans the time period from 2021 through 2029, was adopted by the City Council on November 9, 2021 and was submitted to the California Department of Housing and Community Development (HCD) for certification review on November 18, 2021. At the conclusion of a 90-Day Review Period, HCD rescinded their previous conditional certification of the Housing Element and required revisions to an Ordinance previously approved by a former HCD reviewer. These revisions were detailed in the HCD comment letter dated February 21, 2022.

A revised 6th Cycle Housing Element Update was prepared, which addressed comments received from HCD and was reviewed by the Planning Commission on December 6, 2023, and was then reviewed and adopted by the City Council on January 9, 2024. The readopted 6th Cycle Housing Element was transmitted to HCD for Certification review. To be considered for Certification by HCD, the proposed Zoning Text Amendments contained in Ordinance 1600 were integral to implementing the Housing Element Programs. The adopted Ordinance 1600 was transmitted to HCD prior to the conclusion of HCD's 60-day review on March 14, 2024. A letter from HCD dated March 29, 2024, stated that although the City of Banning 6th Cycle Housing Element complied with the statutory requirements of State Housing Element law, the Housing Element was found to not be in substantial compliance due to the wording of a line item in Table 17.08.020, and the wording of footnote number 7 of the same table.

Staff worked directly with HCD to garner tentative agreement of proposed amendments to Table

17.08.020, and footnote number 7, as shown in the attached Ordinance 1605.

On June 25, 2024, the City Council conducted first reading of and introduced Ordinance 1605, as read by title only. The zoning text amendments will become effective upon the 31st day after the City Council's of Ordinance 1605. Pursuant to an email conversation with HCD staff on May 17, 2024 (attached), the proposed Zoning Text Amendment/Ordinance 1605, when adopted, and an executed copy of which is transmitted to HCD, will garner certification of the 6th Cycle Housing Element. Until the 6th Cycle Housing Element is Certified by HCD, the City is not eligible to compete for federal, state, or 1340
local grant money. If HCD continues to find that the City has a noncompliant Housing Element, the City can lose the ability to receive Community Development Block Grants as well as other negative incentives such as fines and increases to the City’s Regional Housing Needs Assessment.

JUSTIFICATION:

Adoption of Ordinance 1605 will implement Zoning Text Amendment (ZTA 24-0050), a proposal to amend Table 17.08.020 in Banning Municipal Code ("BMC") Section 17.08.020, Residential Zoning Districts (Chapter 17.08, Article I, Division II); amending Permitted and Conditionally Permitted Uses by moving the line item for "Affordable Housing" to just below "Multi-Family Housing" in the Table; and amending footnote number 7 to Table 17.08.020 of the BMC from: "7 Housing developments in the VHDR district are permitted at a minimum density of twenty-four dwelling units to 30 dwelling units per acre, without a Public Hearing required. Applies only to affordable housing projects pursuant to Government Code Section 65583." to the following: "7 Affordable housing developments pursuant to Government Code Section 65583.2 and located within the multi-family housing zoning districts are permitted by right without a public hearing or discretionary action and, in the VHDR district, are permitted at a minimum density of 24 dwelling units to 30 dwelling units per acre." FINDINGS:

Finding A: The proposed Amendment is consistent with the goals and policies of the General Plan.

Findings of Fact: The proposed amendment to Title 17 (Zoning) is consistent with the following goals and policies of the General Plan:

Community Development Element:

Goal. A balanced, well planned community including businesses which provides a functional pattern of land uses and enhances the quality of life for all Banning residents.

Policy 1. The City maintain a land use map which assures a balance of residential, commercial, industrial open space and public lands.

Policy 2. The Planning, Public Works and Economic Development staff shall be closely coordinated, to assure [sic] efficient and cost effective processing of applications.

Policy 3. Development in all land use categories shall be of the highest quality.

Policy 4. Specific Plans shall be required to for projects proposing one or more of the following:

More than one residential land use designation; A combination of residential, commercial and/or industrial land use designation; or Extension of infrastructure (water, sewer and roadways) into an area where these do not exist.

Policy 5. All land use proposals shall be consistent with the goals, policies and programs of this General Plan, and with the Zoning Ordinance.

Policy 6. The City shall implement a program for art in public places.

Housing Element (6th Cycle Housing Element Update):

Goal. Promote the maintenance and preservation of the City’s existing housing stock.

Policy 1.1 Encourage the revitalization of the existing housing stock through rehabilitation programs.

Policy 1.2 Continue to establish and enforce property maintenance regulations that promote the sound maintenance of property and enhance the livability and appearance of residential areas.

Policy 1.3 Promote the development of attractive and safe housing to meet community needs.

Finding B. The proposed Amendment is consistent with the goals and policies of Title 17 of the Municipal Code (Zoning Ordinance).

Findings of Fact: The proposed amendment to Title 17 (Zoning) is internally consistent with the rest of Title 17. This proposed amendment will create opportunities for attractive and safe residential housing for all current and future City of Banning residents from all socio-economic groups. The Project will also 1341
implement Housing Element Policy 2.2 by supporting the development of housing affordable to all income groups by utilizing a variety of public and private efforts.

Finding C: That the Planning Commission has independently reviewed and considered the requirements of CEQA.

Findings of Fact: As stated in Section 1 of this Resolution, Planning Division staff find and determine that the proposed amendments to Title 17 (Zoning), as set forth in Exhibit B to this Resolution, is not subject to CEQA pursuant to State CEQA Guidelines Section 15061(b)(3); the Planning Commission has reviewed staff’s determinations of exemption from CEQA, and recommends that the City Council, based on its own independent judgement, concur with staff’s determination of exemption and direct the Community Development Director to file the Notice of Exemption attached as Exhibit A to this Resolution. Environmental Determination Pursuant to the California Environmental Quality Act (CEQA) and the State CEQA Guidelines, the Project is exempt from the California Environmental Quality Act (CEQA) subject to Section 15061(b)(3), because it can be seen with certainty there is no possibility these amendments may have a significant effect on the environment. Subject to Section 15061(b)(3) (Review For Exemptions) of the CEQA Guidelines, no further analysis is required and a Notice of Exemption has been prepared for the Project. Future projects subject to proposed amendments to Title 17 (Zoning) will require a discretionary permit and CEQA review, and will be analyzed at the appropriate time in accordance with CEQA.

Public Communication: The proposed Ordinance 1605 (Zoning Text Amendment 24-0050) to achieve certification of the City of Banning 6th Cycle Housing Element was advertised in the Record Gazette newspaper on May 17, 2024 for the May 29, 2024 Planning Commission meeting; and on June 14, 2024, for the June 25, 2024 City Council public hearing. As of the date of this report, staff has not received any written comments on the project. On May 29, 2024, the Planning Commission voted unanimously to adopt PC Resolution 2024-11, recommending that the City Council adopt Ordinance 1605 and find that the project is exempt from the California Environmental Quality Act pursuant to Section 15061(b)(3) of the CEQA Guidelines.

FISCAL IMPACT:

Other than staff time, there are no anticipated fiscal impacts if the City Council adopts Ordinance 1605; but there are potentially severe sanctions if the Housing Element is not Certified by HCD. Submittal of future residential or mixed-use development applications pursuant to adopted Housing Element Programs, goals, and policies, will increase Community Development Department revenues and collection of Development Impact Fees.

ALTERNATIVES:

1. Conduct second reading of and adopt Ordinance 1605

2. Do not adopt Ordinance 1605 and provide alternative direction to staff.

ATTACHMENTS:

1. Ordinance 1605.docx
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Ordinance 1605