Pine Mountain Mutual Water Company
EPA ID: CA2300591 · 310 people served · 1 ZIP code
Over five tracked years, Pine Mountain Mutual Water Company has stayed completely violation-free for its 310 residents.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for Pine Mountain Mutual Water Company Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Pine Mountain Mutual Water Company serves a community with a median household income of $67,069 and an estimated 14,627 residents across its service area. Approximately 68% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: 55% of the population in this service area is classified as disadvantaged under EPA's EJScreen criteria. 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?
Pine Mountain Mutual Water Company'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 2% of homes in Mendocino 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
Pine Mountain Mutual Water Company (EPA ID: CA2300591) is a community water system in California that serves approximately 310 people from surface water sources.
This system serves ZIP code 95490 in Willits.
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
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.
- 95490 — Willits
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Pine Mountain Mutual Water Company (CA2300591) on EPA.gov.
Frequently Asked Questions
Is Pine Mountain Mutual Water Company water safe to drink?
Based on EPA records, Pine Mountain Mutual Water Company has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does Pine Mountain Mutual Water Company serve?
Pine Mountain Mutual Water Company serves approximately 310 people across 1 ZIP code in California.
Where does Pine Mountain Mutual Water Company 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.