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PINE HILLS MUTUAL WATER COMPANY

PWS ID: CA3700905 · JULIAN, California 92036

PINE HILLS MUTUAL WATER COMPANY serves 760 people in JULIAN, California using Groundwater water sources. It has 47 recorded EPA violations, including 10 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: PINE HILLS MUTUAL WATER COMPANY

PINE HILLS MUTUAL WATER COMPANY is a private-owned community water system that delivers drinking water to 760 residents in JULIAN, California (San Diego County) through 232 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 47 total violations for this system , of which 10 (21%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 20 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Nitrate, recorded in 5 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across California, EPA tracks 7,249 public water systems serving 42,404,883 people, with 153,308 cumulative violations and 63,983 health-based violations on record. About 89% of systems in the state carry at least one violation, and state-wide the average per system is 21.1 violations. PINE HILLS MUTUAL WATER COMPANY's 47 violations sit above the California average. Statewide, 447 of 694 UCMR5-tested systems have reported PFAS detections (64.4%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
760
Total Violations
47
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
232
County
San Diego
School/Daycare
No
MCL Violations
4
Monitoring Violations
20
Treatment Tech Violations
6

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 5 2005
Interim Enhanced Surface Water Treatment Rule TT 4 2013
E. COLI MR 4 2021
Lead and Copper Rule MR 3 2003
Coliform (TCR) MR 2 2014
Benzene MR 2 2015
Revised Total Coliform Rule MCL 2 2021
Public Notice Other 2 2021
Coliform (TCR) MCL 2 2000
CYANIDE MR 2 2006
Gross Alpha, Excl. Radon and U MR 2 1981
Surface Water Treatment Rule TT 2 2018
Consumer Confidence Rule Other 2 2010

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for PINE HILLS MUTUAL WATER COMPANY.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID CA3700905 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

California Drinking Water Authority

California State Water Resources Control Board — Division of Drinking Water is the primacy agency that licenses and inspects PINE HILLS MUTUAL WATER COMPANY under EPA-delegated authority.

Open CA regulator portal

Source: California State Water Resources Control Board — Division of Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2021 E. COLI MR 4 SDWIS / CA3700905 / 3014
2021 Revised Total Coliform Rule MCL 2 SDWIS / CA3700905 / 8000
2021 Public Notice Other 2 SDWIS / CA3700905 / 7500
2018 Surface Water Treatment Rule TT 2 SDWIS / CA3700905 / 0200
2015 Benzene MR 2 SDWIS / CA3700905 / 2990
2014 Coliform (TCR) MR 2 SDWIS / CA3700905 / 3100
2013 Interim Enhanced Surface Water Treatment Rule TT 4 SDWIS / CA3700905 / 0300
2010 Consumer Confidence Rule Other 2 SDWIS / CA3700905 / 7000
2006 CYANIDE MR 2 SDWIS / CA3700905 / 1024
2005 Nitrate MR 5 SDWIS / CA3700905 / 1040
2003 Lead and Copper Rule MR 3 SDWIS / CA3700905 / 5000
2000 Coliform (TCR) MCL 2 SDWIS / CA3700905 / 3100
1981 Gross Alpha, Excl. Radon and U MR 2 SDWIS / CA3700905 / 4000

How PINE HILLS MUTUAL WATER COMPANY Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric PINE HILLS MUTUAL WATER COMPANY California avg Federal benchmark
Total violations 47 21.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 10 8.8 Indicates a contaminant exceeded a federal MCL
PFAS detection None 64.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 760 5,850 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,249 regulated public water systems in California.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is PINE HILLS MUTUAL WATER COMPANY water safe to drink? ▼
PINE HILLS MUTUAL WATER COMPANY (PWS ID: CA3700905) has 47 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 760 people using Groundwater sources.
How many people does PINE HILLS MUTUAL WATER COMPANY serve? ▼
PINE HILLS MUTUAL WATER COMPANY serves 760 people in JULIAN, California. It is a Private-owned system using Groundwater water sources with 232 service connections.
What type of violations does PINE HILLS MUTUAL WATER COMPANY have? ▼
PINE HILLS MUTUAL WATER COMPANY has 47 total violations: 10 health-based violations (MCL exceedances or treatment failures), 20 monitoring/reporting violations, and 6 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in PINE HILLS MUTUAL WATER COMPANY water? ▼
No PFAS testing data is available for PINE HILLS MUTUAL WATER COMPANY under the EPA's UCMR5 monitoring program.
What water source does PINE HILLS MUTUAL WATER COMPANY use? ▼
PINE HILLS MUTUAL WATER COMPANY uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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