Penngrove Water Company (puc)
EPA ID: CA4910003 · 1,742 people served · 6 ZIP codes
ZipCheckup's reading of EPA SDWIS for Penngrove Water Company (puc) (CA4910003): no EPA violations recorded in the last five years. Federal monitoring spanning five full years has produced zero violations at Penngrove Water Company (puc) - a clean record across every reporting cycle for a utility serving approximately 1,742 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Penngrove Water Company (puc) Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Penngrove Water Company (puc) serves a community with a median household income of $105,335 and an estimated 168,067 residents across its service area. Approximately 64% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Penngrove Water Company (puc)'s water is pumped from underground aquifers. 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.
Infrastructure Risk
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 3 detections recorded. 1 exceeds federal EPA limits (4 ppt for PFOA/PFOS).
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
Penngrove Water Company (puc) (EPA ID: CA4910003) is a community water system in California that serves approximately 1,742 people from groundwater sources.
This system provides water to 6 ZIP codes across 5 communities.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0 mg/L | No | N/A |
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
Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
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.
- 94928 - Rohnert Park
- 94931 - Cotati
- 94951 - Penngrove
- 94952 - Petaluma
- 94954 - Petaluma
- 95404 - Santa Rosa
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Penngrove Water Company (puc) (CA4910003) on EPA.gov.
Frequently Asked Questions
Is Penngrove Water Company (puc) water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Penngrove Water Company (puc) 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 Penngrove Water Company (puc) serve?
Penngrove Water Company (puc) serves approximately 1,742 people across 6 ZIP codes in California.
Where does Penngrove Water Company (puc) get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Penngrove Water Company (puc) Water Quality Report, CA. https://zipcheckup.com/water-system/ca4910003/
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title = {{Penngrove Water Company (puc) Water Quality Report, CA}},
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