Cobb Area County Water District
EPA ID: CA1710012 · 3,515 people served · 2 ZIP codes
ZipCheckup's reading of EPA records for Cobb Area County Water District (CA1710012): 3 violations recorded with unresolved status in the SDWIS data used. In the federal compliance data used here, Cobb Area County Water District has 3 violations listed as open; the utility serves approximately 3,515 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Cobb Area County Water District Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Cobb Area County Water District have a median household income of $86,599 and about 4,985 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 70% 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?
Cobb Area County Water 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 60th 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
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
Cobb Area County Water District (EPA ID: CA1710012) is a community water system in California that serves approximately 3,515 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 0 resolved, 0 archived, 0 addressed, and 3 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 |
|---|---|---|---|
| June 1, 2025 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
| October 17, 2024 | LEAD AND COPPER RULE REVISIONS | Non-health-based | Unaddressed (current) |
| October 17, 2024 | LEAD AND COPPER RULE REVISIONS | Health-based | Unaddressed (current) |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| LEAD AND COPPER RULE REVISIONS | Treatment Technique, Monitoring & Reporting | 2 | Yes |
| Lead and Copper Rule | 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 |
|---|---|---|
| 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
2 of 2 ZIP records with known zones are 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.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Cobb Area County Water District (CA1710012) on EPA.gov.
Frequently Asked Questions
Is Cobb Area County Water District water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current health-based noncompliance record for Cobb Area County Water District. 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 Cobb Area County Water District serve?
Cobb Area County Water District serves approximately 3,515 people across 2 ZIP codes in California.
Where does Cobb Area County Water District get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Cobb Area County Water District (CA): 1 Health Violation. https://zipcheckup.com/water-system/ca1710012/
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author = {{ZipCheckup}},
title = {{Cobb Area County Water District (CA): 1 Health Violation}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ca1710012/}
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What You Can Do
Test your water
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Check your specific ZIP code
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Contact your utility
Cobb Area County Water District (EPA ID: CA1710012) - request the latest Consumer Confidence Report or ask about specific contaminants.