Pine Mountain Mutual Water Company
EPA ID: CA2300591 · 310 people served · 1 ZIP code
ZipCheckup's reading of EPA SDWIS for Pine Mountain Mutual Water Company (CA2300591): 2 unresolved EPA violations on record. The EPA enforcement database lists 2 active violations for Pine Mountain Mutual Water Company - a provider that delivers drinking water to approximately 310 people and has not yet formally resolved those findings.
Data: EPA SDWIS
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.
Infrastructure Risk
Detected Contaminants
How Pine Mountain Mutual Water Company compares to EPA limits
What This Means For You
Haloacetic Acids (HAA5) at 1 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Total Trihalomethanes (TTHM) at 1 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Stage 1 DBP Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Consumer Confidence Report Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Haloacetic Acids (HAA5) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →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
Status breakdown for accepted records with record years 2021-2026: 1 resolved, 2 archived, 0 addressed, and 2 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 |
|---|---|---|---|
| April 1, 2025 | Haloacetic Acids (HAA5) | Non-health-based | Archived |
| April 1, 2025 | Total Trihalomethanes (TTHM) | Non-health-based | Archived |
| January 1, 2024 | Stage 1 DBP Rule | Non-health-based | Unaddressed (current) |
| October 1, 2022 | Stage 1 DBP Rule | Non-health-based | Unaddressed (current) |
| December 1, 2021 | Consumer Confidence Report 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 |
|---|---|---|---|
| Stage 1 DBP Rule | Treatment Failure | 2 | No |
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 1 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 1 | No |
| Consumer Confidence Report Rule | Reporting Failure | 1 | No |
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.
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?
The accepted 2026Q2 ECHO snapshot shows 2 current noncompliance records and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
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.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Pine Mountain Mutual Water Company (CA): 5 EPA Violations. https://zipcheckup.com/water-system/ca2300591/
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title = {{Pine Mountain Mutual Water Company (CA): 5 EPA Violations}},
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url = {https://zipcheckup.com/water-system/ca2300591/}
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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
Pine Mountain Mutual Water Company (EPA ID: CA2300591) - request the latest Consumer Confidence Report or ask about specific contaminants.