Padre Dam Municipal Water District

Provider briefing

How this utility’s billing works

Padre Dam Municipal Water District operates as a public water authority serving Santee, El Cajon, Lakeside, Spring Valley, Harbison Canyon, Flinn Springs, and adjacent eastern San Diego County communities. 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 Increasing-block residential rates measured in HCF, where 1 HCF equals 748 gallons, with monthly meter/system charges, pumping or energy charges, an infrastructure-allocation charge, zone differences, and a possible Eastern Service Area property-tax credit. For water use on or after January 1, 2026 and bills mailed on or after February 1, 2026, the published residential tier rates are $9.78/HCF for Tier 1, $10.95/HCF for Tier 2, and $12.48/HCF for Tier 3. The published monthly allocations are MF: 0–7, 8–17, 18+ HCF; SF1: 0–9, 10–20, 21+; SF2: 0–14, 15–30, 31+; and SF3: 0–18, 19–40, 41+ HCF. The same 2026 table lists western-zone pumping rates of $0.52, $0.52, $1.03, $1.54, $2.06, and $2.58/HCF by zone and an ESA credit of $0.77/HCF for qualifying eastern customers.. Bills are generated monthly. padre dam bills water and/or sewer services each month; the first bill for a new customer is normally a partial bill before the account enters a complete cycle. bills are due 15 days after the statement date, and autopay withdrawals are scheduled for 15 days after the statement date., and a typical residential cost reference is A 5,000–7,000-gallon month is approximately 6.7–9.4 HCF. At the 2026 residential Tier 1 prices, the water-flow component is roughly $65–$92 per month before system, infrastructure-allocation, pumping/energy, elevation, and ESA-credit effects. A realistic water-only planning range is approximately $75–$135 per month for a typical 5/8-inch or 3/4-inch single-family account, but Padre Dam’s final amount varies materially by dwelling allocation, service zone, meter size, conservation tier, and fixed charges. Sewer, when billed by Padre Dam, is additional and is calculated under the separate sewer schedule.. 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

For a single-family residential customer, the 2025–2026 sewer schedule uses the average of the lowest daily water consumption from a full two-month back-to-back billing period in the preceding calendar year. The formula is the prior-year lowest units-per-day average multiplied by a 30-day month and the $4.67/HCF sewer rate, plus the $41.12 monthly base sewer fee. A new single-family customer without a full year of history is charged the published new-customer monthly fee of $73.81, and the published residential maximum is $97.16. Multi-family, commercial, government, and industrial accounts use EDU base charges, estimated return-to-sewer percentages, and strength-rate multipliers; the current schedule lists $34.13 per EDU for townhouses/condos, $27.97 per EDU for apartments/mobile-home parks, and $4.67/HCF before return-to-sewer and strength adjustments.

Meter and infrastructure notes

Padre Dam’s customer materials provide an Aquahawk water-use portal with hourly, daily, and weekly usage views and leak/continuous-flow alerts. The District’s current field-services job specification confirms an Advanced Metering Infrastructure (AMI) system with meters, radio registers, software, gateways, repeaters, network backhaul, and meter-management systems; it also describes handheld field computers and monthly reporting. Accordingly, Padre Dam uses AMI telemetry for usage monitoring and customer alerts while field staff maintain, troubleshoot, and schedule meter work. Customers remain responsible for plumbing beyond the customer side of the meter and should use Aquahawk alerts as an aid, not as a substitute for checking a suspected leak.