NorwalkWhat a house pays

Norwalk water and sewer rates

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

Liberty Utilities (Park Water)

Liberty Utilities (Park Water): monthly service charge plus tiered quantity rates; customers in the City of Norwalk pay a 2.04% surcharge.

Use a monthPrice per unit (CCF, 748 gallons)
Fixed charge$40.73 a month
0 to 6 units$5.27
6 to 18 units$6.81
18 to more$11.05
Source
In 2025 the system got 62.23% of its water from the Metropolitan Water District (Colorado River and State Water Project) and 37.77% from wells in the Central Basin Aquifer.

Golden State Water (Norwalk)

Golden State Water, Metropolitan District residential metered service: monthly service charge plus tiered quantity rates.

Use a monthPrice per unit (CCF, 748 gallons)
Fixed charge$38.07 a month
0 to 9 units$5.94
9 to 21 units$6.79
21 to more$7.78
Source
Water in the Norwalk System is a blend of treated groundwater from the Central Groundwater Basin and imported Colorado River and State Water Project water from the Metropolitan Water District.
Lead
None of the 31 lead samples collected in 2025 exceeded the action level; the 90th-percentile result was ND (not detected).

Sewer

City of Norwalk sewer service charge, collected on the Los Angeles County property tax bill: $90.96 for 2026-27 for a 5/8-inch or 3/4-inch meter ($7.58 a month).

Pay or manage it

Sources

  1. City of Norwalk: Norwalk Municipal Water System
  2. Liberty Utilities (Park Water) Schedule PR-1-R
  3. Liberty Utilities (Park Water) Schedule UF
  4. CPUC: Liberty Park Water rate case notice (A.24-01-002)
  5. Golden State Water Schedule ME-1-R (Metropolitan District)
  6. Golden State Water Schedule UF
  7. Golden State Water Norwalk 2026 water quality report
  8. City of Norwalk: sewer fees
  9. City of Norwalk sewer service charge preliminary charge roll FY 2026-27
  10. City of Norwalk sewer rate notice (2019)
  11. City of Norwalk sewer service charge hearing notice FY 2026/27
  12. Liberty Utilities (Park Water) Schedule CAP

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.