Lincoln Avenue Water Company
EPA ID: CA1910063 · 16,088 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Lincoln Avenue Water Company (CA1910063): no drinking-water violations recorded since 2021. From the earliest to the most recent cycle in the EPA data on file, Lincoln Avenue Water Company has logged zero violations for the 16,088 people in its service area - a count of records, not a test result for any home.
Data: EPA SDWIS
Service Area Map
Coverage area for Lincoln Avenue Water Company Source: EPA SDWIS service area boundaries.
Service area boundary - average Home Safety grade of mapped ZIPs: C
Demographics of ZIP Codes Served
The ZIP codes associated with Lincoln Avenue Water Company have a median household income of $133,840 and about 36,402 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 92% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 49% 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?
Lincoln Avenue Water Company'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 70th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
PFAS in ZIP Codes This System Serves
PFAS ("forever chemicals") have been reported in samples from water systems associated with the ZIP codes in this system's area. These results can come from other water systems serving the same ZIP codes; check the UCMR5 section for any results reported for this system. 7 detections recorded. 3 detections are above the level of a federal PFAS MCL (4 ppt for PFOA and PFOS), with compliance required from 2029.
Comparable Water Systems
Similar-sized systems in California
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
Lincoln Avenue Water Company (EPA ID: CA1910063) is a community water system in California that serves approximately 16,088 people from surface water sources.
This system serves ZIP code 91001 in Altadena.
ZIP-Area Home Safety Context: C (58/100)
This is the average Home Safety Score for 1 of 1 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
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 | 2022-12-31 |
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 2.
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.
- 91001 - Altadena
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Lincoln Avenue Water Company (CA1910063) on EPA.gov.
Frequently Asked Questions
Is Lincoln Avenue Water Company water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Lincoln Avenue Water Company 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 Lincoln Avenue Water Company serve?
Lincoln Avenue Water Company serves approximately 16,088 people across 1 ZIP code in California.
Where does Lincoln Avenue Water Company get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Lincoln Avenue Water Company, CA: Serves 16K People. https://zipcheckup.com/water-system/ca1910063/
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author = {{ZipCheckup}},
title = {{Lincoln Avenue Water Company, CA: Serves 16K People}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ca1910063/}
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What You Can Do
Test your water
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Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Lincoln Avenue Water Company (EPA ID: CA1910063) - request the latest Consumer Confidence Report or ask about specific contaminants.