Sereno Del Mar Water Company (puc)
EPA ID: CA4900647 · 435 people served · 1 ZIP code
Zero EPA violations over five years — Sereno Del Mar Water Company (puc) has kept tap water compliance clean for its full service population of 435.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Sereno Del Mar Water Company (puc) Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Sereno Del Mar Water Company (puc) serves a community with a median household income of $96,023 and an estimated 5,999 residents across its service area. Approximately 76% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Sereno Del Mar Water Company (puc)'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.
About 1% of homes in Sonoma County, California rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
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
Sereno Del Mar Water Company (puc) (EPA ID: CA4900647) is a community water system in California that serves approximately 435 people from surface water sources.
This system serves ZIP code 95436 in Forestville.
Violation History
Lead & Copper
No Lead and Copper Rule sampling data available for this water system.
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
- 95436 — Forestville
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Sereno Del Mar Water Company (puc) (CA4900647) on EPA.gov.
Frequently Asked Questions
Is Sereno Del Mar Water Company (puc) water safe to drink?
Based on EPA records, Sereno Del Mar Water Company (puc) has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Sereno Del Mar Water Company (puc) serve?
Sereno Del Mar Water Company (puc) serves approximately 435 people across 1 ZIP code in California.
Where does Sereno Del Mar Water Company (puc) get its water?
The primary water source is surface water.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
This system reports zero confirmed lead service lines in its inventory. Unknown-material counts may still warrant verification.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.