Barton Flats Water System
EPA ID: CA3601048 · 1,070 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Barton Flats Water System (CA3601048): 2 violations recorded with unresolved status in the SDWIS data used. In the federal compliance data used here, Barton Flats Water System has 2 violations listed as open; the utility serves approximately 1,070 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Barton Flats Water System Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Barton Flats Water System have a median household income of $114,453 and about 371 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 66% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 51% 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?
Barton Flats Water System'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
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
Barton Flats Water System (EPA ID: CA3601048) is a community water system in California that serves approximately 1,070 people from surface water sources.
This system serves ZIP code 92305 in Angelus Oaks.
Violation History
Status breakdown for accepted records with record years 2021-2026: 5 resolved, 0 archived, 0 addressed, and 2 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| October 17, 2024 | LEAD AND COPPER RULE REVISIONS | Health-based | Unaddressed (current) |
| October 17, 2024 | LEAD AND COPPER RULE REVISIONS | Non-health-based | Unaddressed (current) |
| January 1, 2022 | TTHM | Non-health-based | Resolved |
| January 1, 2022 | Total Haloacetic Acids (HAA5) | Non-health-based | Resolved |
| January 1, 2022 | Nitrate | Non-health-based | Resolved |
| January 1, 2021 | TTHM | Non-health-based | Resolved |
| January 1, 2021 | Total Haloacetic Acids (HAA5) | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | Monitoring & Reporting | 2 | No |
| TTHM | Monitoring & Reporting | 2 | No |
| LEAD AND COPPER RULE REVISIONS | Treatment Technique, Monitoring & Reporting | 2 | Yes |
| Nitrate | Monitoring & Reporting | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0028 mg/L | No | 2025-12-31 |
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.
- 92305 - Angelus Oaks
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Barton Flats Water System (CA3601048) on EPA.gov.
Frequently Asked Questions
Is Barton Flats Water System water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current health-based noncompliance record for Barton Flats Water System. Review the utility's current notices and EPA record. This system-level compliance history cannot determine conditions at a specific tap.
How many people does Barton Flats Water System serve?
Barton Flats Water System serves approximately 1,070 people across 1 ZIP code in California.
Where does Barton Flats Water System get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Barton Flats Water System (CA): 1 Health Violation. https://zipcheckup.com/water-system/ca3601048/
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author = {{ZipCheckup}},
title = {{Barton Flats Water System (CA): 1 Health Violation}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ca3601048/}
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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
Barton Flats Water System (EPA ID: CA3601048) - request the latest Consumer Confidence Report or ask about specific contaminants.