Lake County Csa 20 - Soda Bay
EPA ID: CA1710022 · 2,003 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Lake County Csa 20 - Soda Bay (CA1710022): no drinking-water violations recorded since 2021. Federal SDWIS data returns no violation records for Lake County Csa 20 - Soda Bay, the supplier serving 2,003 residents - a statement about the EPA file rather than a measurement of contaminant levels in the water.
Data: EPA SDWIS
Service Area Map
Coverage area for Lake County Csa 20 - Soda Bay Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Lake County Csa 20 - Soda Bay have a median household income of $65,417 and about 12,793 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 53% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 73% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
🌊 Where Does Your Water Come From?
Lake County Csa 20 - Soda Bay's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in California
System Overview
Lake County Csa 20 - Soda Bay (EPA ID: CA1710022) is a community water system in California that serves approximately 2,003 people from surface water sources.
This system serves ZIP code 95451 in Kelseyville.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| Below the reporting limit | No | 2023-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by CA or modeled from parcel and building-footprint data.
- 95451 - Kelseyville
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Lake County Csa 20 - Soda Bay (CA1710022) on EPA.gov.
Frequently Asked Questions
Is Lake County Csa 20 - Soda Bay water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Lake County Csa 20 - Soda Bay in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Lake County Csa 20 - Soda Bay serve?
Lake County Csa 20 - Soda Bay serves approximately 2,003 people across 1 ZIP code in California.
Where does Lake County Csa 20 - Soda Bay get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Lake County Csa 20 - Soda Bay Water Quality Report, CA. https://zipcheckup.com/water-system/ca1710022/
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author = {{ZipCheckup}},
title = {{Lake County Csa 20 - Soda Bay Water Quality Report, CA}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ca1710022/}
}