Lockeford Community Serv. District
EPA ID: CA3910008 · 3,572 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Lockeford Community Serv. District (CA3910008): no drinking-water violations recorded since 2021. Nothing in the federal violation file is listed against Lockeford Community Serv. District, a system that provides water to roughly 3,572 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Lockeford Community Serv. District Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Lockeford Community Serv. District have a median household income of $86,836 and about 3,753 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 59% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 55% 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?
Lockeford Community Serv. District's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites. Groundwater sources near contaminated sites may face elevated risk from industrial chemicals.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in California
System Overview
Lockeford Community Serv. District (EPA ID: CA3910008) is a community water system in California that serves approximately 3,572 people from groundwater sources.
This system serves ZIP code 95237 in Lockeford.
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 | 2024-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
1 of 1 ZIP records with known zones is in EPA Radon Zone 3.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
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.
- 95237 - Lockeford
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Lockeford Community Serv. District (CA3910008) on EPA.gov.
Frequently Asked Questions
Is Lockeford Community Serv. District water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Lockeford Community Serv. District 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 Lockeford Community Serv. District serve?
Lockeford Community Serv. District serves approximately 3,572 people across 1 ZIP code in California.
Where does Lockeford Community Serv. District get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Lockeford Community Serv. District Water Quality Report, CA. https://zipcheckup.com/water-system/ca3910008/
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author = {{ZipCheckup}},
title = {{Lockeford Community Serv. District Water Quality Report, CA}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ca3910008/}
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