Palmdale water and sewer rates

Who supplies water to Palmdale houses, what it costs, and how the sewer charge works.

Palmdale Water District

Palmdale Water District: monthly service charge plus water-budget tiers that are set individually for each customer.

Use a monthPrice per unit (CCF, 748 gallons)
Fixed charge$67.43 a month
0 to 8.02 units$1.45
8.02 to 17.44 units$2.93
17.44 to 22.15 units$4.40
22.15 to more$5.53
Source
Palmdale Water District delivered about 71% surface water and 29% groundwater in 2025.
Hardness
Hardness averaged 6.5 grains per gallon in treated surface water (range 5.6 to 7.4) and 6.8 grains per gallon in groundwater (range 1.9 to 15).
Lead
The 90th-percentile lead result in customer tap samples was ND (not detected); the action level is 15 µg/L.

LA County Waterworks District 40, Region 4

LA County Waterworks District 40, Region 4 (rate schedule 0426-0429, small meter): monthly service charge plus two tiers per hcf and a quantity surcharge, effective March 1, 2026.

Use a monthPrice per unit (CCF, 748 gallons)
Fixed charge$32.61 a month
0 to 6 units$1.59
6 to more$2.26
Source
In 2025 about 53% of the water was treated or banked surface water bought from AVEK (State Water Project) and 47% was groundwater from District wells.
Hardness
Total hardness in District groundwater averaged 98 ppm (range 30 to 320) in samples from 2023 to 2025; AVEK's Quartz Hill plant water averaged 95 ppm.
Lead
The 90th-percentile lead level in 2025 tap samples was 1.8 ppb, and none of the 50 sites was above the 15 ppb action level.

Sewer

Los Angeles County Sanitation District No. 20 collects its wastewater service charge on the property tax roll: $712.52 for 2026-27 per single-family home ($59.38 a month).

Dates

WhenWhat
Nov 2026 (in 28 days)Palmdale Water District starts taking 2027 Rate Assistance Program applications (up to $25 off the monthly service fee).

Pay or manage it

Sources

  1. Palmdale Water District: water rates/fee schedule
  2. Palmdale Water District Resolution 24-12 (water rates 2025-2029)
  3. Palmdale Water District 2024 rate study presentation
  4. Palmdale Water District 2025 Consumer Confidence Report
  5. LA County Waterworks District 40, Region 4 rates (effective March 1, 2026)
  6. LA County Waterworks District 40, Regions 4 & 34: 2025 water quality report
  7. Palmdale Water District Resolution 2026-6 (2026-27 assessment rates)
  8. Palmdale Water District: Rate Assistance Program

Checked October 21, 2026. Every number here comes from the public sources listed, matched by our checker.

Rates change every year; this page shows when it was last checked. Nothing here is legal, tax or insurance advice.