Public Water Authority
South Montebello Irrigation District
Serving South Montebello Irrigation District service area in Montebello, Los Angeles County; active CWS PWS CA1910153
Population served
15,021 people served by active community water system CA1910153 according to California Drinking Water Watch. The registry lists 2,086 residential, 225 commercial, and 40 industrial metered connections. The system uses groundwater wells and purchases/interconnections with California Water Service East Los Angeles and Montebello Land & Water Company; it is separate from Montebello Land & Water and from the City/SGV Water Company system.
State system code
FIPS 06
Billing frequency
Monthly. The current SB 998 policy states that bills are rendered monthly unless a rate schedule provides otherwise, are due upon presentation, and become overdue and subject to discontinuation if unpaid within 60 days of the bill date. The owner service application says current utility bills are due by the 20th of the month billed, so the printed bill date and due date control for a particular account.
Provider briefing
How this utility’s billing works
South Montebello Irrigation District operates as a public water authority serving South Montebello Irrigation District service area in Montebello, Los Angeles County; active CWS PWS CA1910153. Customers should use the provider’s current account-specific bill and official customer-service instructions as the final authority for deadlines, balances, and service requests.
The published water-rate framework is described as Metered monthly service with a fixed readiness-to-serve meter-base charge, a dwelling-unit charge, and a volumetric water rate by billing classification. The FY 2026–27 schedule effective July 1, 2026 lists residential 1–5-unit usage at $2.58, residential 6–25 units at $3.63, and residential 26+ units at $4.48, with commercial/industrial/all multifamily rates of $3.63 or $4.48. The 5/8-inch meter-base rate is $41.02 monthly and the dwelling-unit charge is $16.45; verify whether the account's classification and actual service units place it in the appropriate row.. Bills are generated monthly. the current sb 998 policy states that bills are rendered monthly unless a rate schedule provides otherwise, are due upon presentation, and become overdue and subject to discontinuation if unpaid within 60 days of the bill date. the owner service application says current utility bills are due by the 20th of the month billed, so the printed bill date and due date control for a particular account., and a typical residential cost reference is Approximately $81–$91 per month for a 5/8-inch residential account with one dwelling unit and 5,000–7,000 gallons, using the July 1, 2026–June 30, 2027 schedule's $41.02 meter-base charge, $16.45 dwelling-unit charge, and the $3.63 residential 6–25-unit volumetric row for roughly 6.68–9.36 HCF (748 gallons per HCF). This is an estimate before any taxes, penalties, special charges, or classification differences; the customer's actual rate row and bill control.. These descriptions are useful planning benchmarks; actual charges can change with meter size, usage, sewer averaging, local taxes, drought stages, or account-specific fees.
Wastewater and sewer calculation
South Montebello Irrigation District's public rate schedule and SB 998 policy cover potable water only and do not publish a sewer or wastewater charge, winter average, sewer cap, or percentage tie-in. A separate sanitation or municipal provider may bill wastewater. Do not add sewer to the SMID water estimate unless a separate account or assessment applies.
Meter and infrastructure notes
The District's current materials do not identify an AMI/AMR vendor, hourly transmission, or smart-meter customer portal telemetry. A current District water-worker description identifies meter reading as an operating duty, and the SB 998 policy treats meters and monthly bills as the source of the current and prior readings. The documented method is periodic field meter reading with monthly billing; confirm any premise-specific remote-read or leak-alert capability with the District.
Emergency water support
Report a leak or water emergency
(323) 721-4735 is the District's published emergency and customer-service number. The SMID homepage directs emergency callers to this number, and the District's customer materials use it for leaks, billing, water service, and urgent assistance. The public site does not list a separate after-hours hotline; call 911 for an immediate life-safety emergency.
Official starting point
Choose the right next step
Reading this profile
A practical reference for South Montebello Irrigation District service area in Montebello, Los Angeles County; active CWS PWS CA1910153
South Montebello Irrigation District is listed here as a public water authority. The profile separates account actions—such as paying a bill or requesting service—from explanatory material about rates, meters, wastewater, leaks, and delinquency.
Because utility rules can vary by account class, meter size, service address, billing date, and local ordinance, treat the published bill and current provider website as the final authority. Use this profile to locate the correct channel and prepare better questions for customer service.
If your issue is urgent, start with the provider’s emergency number or official payment route rather than waiting for an email response. Keep a written record of calls, confirmation numbers, notice dates, and documents you submit.