EPA data as of Oct 2026 · page updated 2026-10-30

Lake County Csa 20 - Soda Bay

Lake County Csa 20 - Soda Bay (EPA ID CA1710022) in Lakeport, CA supplies surface water (rivers, lakes) to about 2,003 people: no health-based violations since 2016, latest lead result 0 ppb, PFAS not tested.

Service area

EPA service-area boundary (state-supplied or EPA-modeled)
Water utility service area PFOA/PFOS ≥ 4 ppt Lead > 15 ppb 5+ violations Superfund site (active) proposed cleaned up Circles: other water systems flagged nearby; size = people served. Tap any symbol for details.

System facts

People served2,003
Connections628
Sourcesurface water (rivers, lakes)
WholesalerNo

Health-based violations

No health-based violations reported since 2016.

Lead

Jan 20210 ppb
Jan 20180 ppb
Jan 20150 ppb
Jan 20120 ppb
Jan 20090 ppb
Jan 20060 ppb
Jan 20055 ppb
Jan 20045.4 ppb

90th-percentile lead per sampling round (90% of the homes sampled were at or below this level). Black line: EPA’s 15 ppb action level; under the Lead and Copper Rule Improvements the action level becomes 10 ppb from 2027.

PFAS

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5).

ZIP codes served

ZIP codes whose center lies in this system’s service area.

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions

Has Lake County Csa 20 - Soda Bay had drinking water violations?

No health-based violations reported since 2016.

What is the lead level in Lake County Csa 20 - Soda Bay water?

The latest 90th-percentile lead result (Jan 2021) was 0 ppb. EPA’s action level is 15 ppb (10 ppb from 2027).

Does Lake County Csa 20 - Soda Bay have PFAS in its water?

This system was not part of EPA’s 2023–2025 nationwide PFAS testing (UCMR 5 covers systems serving over 3,300 people and a sample of smaller ones).