Chapter 7.15
RATES AND CHARGES FOR WASTEWATER SERVICE
Sections:
7.15.010 Military base customer class EDU determination.
7.15.010 Military base customer class EDU determination.
As set forth below, the board hereby modifies the billing method for wastewater service for military base customers. This customer class currently applies to only one customer, the Air Force’s 452nd Air Mobility Wing located at the March Air Reserve Base. Customers in this class shall be annually assigned a fixed number of EDUs for their property based on the estimated number of weekday, weekend (day use) and weekend (day and overnight use) personnel provided by the military base. Each weekday person is assigned 25 gallons of wastewater per day, each weekend (day use) person is assigned 25 gallons of wastewater per day, and each weekend (day and overnight use) person is assigned 60 gallons of wastewater per day. The gallon amounts reflect that a nonresidential customer’s flows generally peak on the wastewater system compared with a single-family residential home. In other words, nonresidential flows generally occur during a shorter period of time during a typical day compared with a residential customer, and often has little to no flow on weekends. The calculation of the number of EDUs assigned to a military base property shall be determined by using the following formula:
(Weekday personnel count x 52 weeks x 5 days per week x 25 gallons) + (Weekend day use personnel count x 12 weekends x 2 days per weekend x 25 gallons) + (Weekend day and overnight use personnel count x 12 weekends x 2 days per weekend x 60 gallons) divided by 365 results in the average daily volume of wastewater. This result is then divided by 180 gallons to arrive at the number of EDUs. 180 gallons is the average amount of wastewater flow from a single-family residential customer per Ordinance 393.
(Res. 3165 § 4, 2021)
7.15.020 Rates and charges.
A. Rates Adjustments and Amendments to Rates for Sewer Service Charges. The board hereby adopts and imposes the adjustments to the rates for sewer service charges as in the amounts and on the dates set forth in Exhibit A. Such rates and charges shall be applied to all sewer service appearing on billing statements issued on or after July 1, 2025; July 1, 2026; July 1, 2027; and July 1, 2028, accordingly.
B. Sewer Treatment/Energy Pass Throughs. The board hereby authorizes the imposition of future increases to the sewer rates and charges above the amounts in Exhibit A as a result of sewer treatment or energy pass throughs. Such sewer treatment or energy pass through rate increases are authorized to be imposed on the sewer rates and charges that will be effective July 1, 2025; July 1, 2026; July 1, 2027; and July 1, 2028; provided, however, (1) any increase to the rates for the sewer service charges as a result of a sewer treatment or energy pass through authorized pursuant to this section may not exceed 12 percent per year; and (2) in no event shall such rates be increased in any year as a result of a sewer treatment or energy pass through by more than the cost of providing sewer service.
C. Notification of Pass Throughs. Prior to implementing any future rate increases as a result of a sewer treatment pass through and/or an energy pass through (collectively “pass through”), Western Water general manager is hereby directed and shall provide written notice of any such rate increases to Western Water customers within each of the affected service areas not less than 30 days prior to the effective date of the rate increases. Any such notice may be provided in the regular billing statements of affected sewer customers. In the event that a sewer treatment pass through or an energy pass through is implemented in accordance with this section, Western Water general manager is hereby directed and shall revise the schedule of rates and charges as set forth in Exhibit A to reflect the rates then in effect as a result of a pass through.
Exhibit A
Sewer (Wastewater) Rates and Charges
Rates and charges applied to all wastewater service appearing on billing statements issued on or after July 1, 2025:
|
Service Area |
Customer Class |
Rate per EDU per Month |
Rate per 1,000 Gallons |
|---|---|---|---|
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La Sierra |
Residential and Commercial and Schools |
$62.28 |
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|
Residential with Maintenance |
$67.28 |
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WWRF |
Residential and Commercial and Schools |
$85.67 |
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Military Base |
$85.67 |
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Dedicated Lift Station: |
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|
Treatment Only |
|
$9.60 |
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Treatment and Conveyance |
|
$15.65 |
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Murietta |
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|
Served by EMWD |
Residential and Commercial |
$51.23 |
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Served by SRRRA |
Residential and Commercial |
$51.70 |
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Rates and charges applied to all wastewater service appearing on billing statements issued on or after July 1, 2026:
|
Service Area |
Customer Class |
Rate per EDU per Month |
Rate per 1,000 Gallons |
|---|---|---|---|
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La Sierra |
Residential and Commercial and Schools |
$66.46 |
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Residential with Maintenance |
$71.46 |
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WWRF |
Residential and Commercial and Schools |
$91.85 |
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Military Base |
$91.85 |
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Dedicated Lift Station: |
|
|
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Treatment Only |
|
$10.08 |
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Treatment and Conveyance |
|
$16.78 |
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Murietta |
|
|
|
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Served by EMWD |
Residential and Commercial |
$52.93 |
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Served by SRRRA |
Residential and Commercial |
$53.77 |
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Rates and charges applied to all wastewater service appearing on billing statements issued on or after July 1, 2027:
|
Service Area |
Customer Class |
Rate per EDU per Month |
Rate per 1,000 Gallons |
|---|---|---|---|
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La Sierra |
Residential and Commercial and Schools |
$70.92 |
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|
Residential with Maintenance |
$75.92 |
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WWRF |
Residential and Commercial and Schools |
$98.52 |
|
|
Military Base |
$98.52 |
|
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Dedicated Lift Station: |
|
|
|
|
Treatment Only |
|
$10.71 |
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Treatment and Conveyance |
|
$18.00 |
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Murietta |
|
|
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|
Served by EMWD |
Residential and Commercial |
$55.00 |
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Served by SRRRA |
Residential and Commercial |
$55.99 |
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Rates and charges applied to all wastewater service appearing on billing statements issued on or after July 1, 2028:
|
Service Area |
Customer Class |
Rate per EDU per Month |
Rate per 1,000 Gallons |
|---|---|---|---|
|
|
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|
La Sierra |
Residential and Commercial and Schools |
$75.67 |
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|
Residential with Maintenance |
$80.67 |
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WWRF |
Residential and Commercial and Schools |
$105.65 |
|
|
Military Base |
$105.65 |
|
|
|
Dedicated Lift Station: |
|
|
|
|
Treatment Only |
|
$11.61 |
|
|
Treatment and Conveyance |
|
$19.30 |
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Murietta |
|
|
|
|
Served by EMWD |
Residential and Commercial |
$57.24 |
|
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Served by SRRRA |
Residential and Commercial |
$58.36 |
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(Res. 3353 §§ 4, 5, 6, (Exh. A), 2025; Res. 3165 § 5 (Exh. A), 2021)