Ventura Cwwd No. 19 - Somis
EPA ID: CA5610015 · 1,429 people served · 3 ZIP codes
ZipCheckup's reading of EPA records for Ventura Cwwd No. 19 - Somis (CA5610015): 1 violation on record since 2021. Per the federal file, all 1 violation logged for Ventura Cwwd No. 19 - Somis carry a resolved status, and around 1,429 people get water from this system.
Data: EPA SDWIS
Service Area Map
Coverage area for Ventura Cwwd No. 19 - Somis Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Ventura Cwwd No. 19 - Somis have a median household income of $149,848 and about 87,396 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 62% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Ventura Cwwd No. 19 - Somis'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.
Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points. Surface water sources near wastewater outfalls may face additional treatment challenges.
Superfund Proximity Note: This service area ranks in the 60th 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. 5 detections recorded. 2 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
Ventura Cwwd No. 19 - Somis (EPA ID: CA5610015) is a community water system in California that serves approximately 1,429 people from surface water sources.
This system provides water to 3 ZIP codes across 3 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 1 resolved, 0 archived, 0 addressed, and 0 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 |
|---|---|---|---|
| March 1, 2022 | Revised Total Coliform Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Revised Total Coliform 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 | 2021-12-31 |
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
3 of 3 ZIP records with known zones are in EPA Radon Zone 1.
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 Ventura Cwwd No. 19 - Somis (CA5610015) on EPA.gov.
Frequently Asked Questions
Is Ventura Cwwd No. 19 - Somis water safe to drink?
The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Ventura Cwwd No. 19 - Somis; its 1 accepted 2021-2026 record are resolved or archived. Historical compliance status does not establish conditions at a specific tap.
How many people does Ventura Cwwd No. 19 - Somis serve?
Ventura Cwwd No. 19 - Somis serves approximately 1,429 people across 3 ZIP codes in California.
Where does Ventura Cwwd No. 19 - Somis get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Ventura Cwwd No. 19 - Somis (CA): 1 EPA Violation. https://zipcheckup.com/water-system/ca5610015/
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author = {{ZipCheckup}},
title = {{Ventura Cwwd No. 19 - Somis (CA): 1 EPA Violation}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ca5610015/}
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What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Ventura Cwwd No. 19 - Somis (EPA ID: CA5610015) - request the latest Consumer Confidence Report or ask about specific contaminants.