PlainWater

ALDERPOINT COUNTY WATER

PWS ID: CA1200501 · ALDERPOINT, California 95511

ALDERPOINT COUNTY WATER serves 185 people in ALDERPOINT, California using Surface Water water sources. It has 83 recorded EPA violations, including 20 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: ALDERPOINT COUNTY WATER

ALDERPOINT COUNTY WATER is a local-owned community water system that delivers drinking water to 185 residents in ALDERPOINT, California (Humboldt County) through 86 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 83 total violations for this system , of which 20 (24%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 33 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 Coliform (TCR), recorded in 22 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. ALDERPOINT COUNTY WATER's 83 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
185
Total Violations
83
Health-Based Violations
20
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
86
County
Humboldt
School/Daycare
No
MCL Violations
0
Monitoring Violations
33
Treatment Tech Violations
20

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 22 2010
Surface Water Treatment Rule TT 18 2010
Lead and Copper Rule MR 5 2021
Surface Water Treatment Rule MR 4 2015
Consumer Confidence Rule Other 2 2018
Gross Alpha, Excl. Radon and U MR 2 1981
Revised Total Coliform Rule TT 2 2017

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 ALDERPOINT COUNTY WATER.

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 CA1200501 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 ALDERPOINT COUNTY WATER 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 Lead and Copper Rule MR 5 SDWIS / CA1200501 / 5000
2018 Consumer Confidence Rule Other 2 SDWIS / CA1200501 / 7000
2017 Revised Total Coliform Rule TT 2 SDWIS / CA1200501 / 8000
2015 Surface Water Treatment Rule MR 4 SDWIS / CA1200501 / 0200
2010 Coliform (TCR) MR 22 SDWIS / CA1200501 / 3100
2010 Surface Water Treatment Rule TT 18 SDWIS / CA1200501 / 0200
1981 Gross Alpha, Excl. Radon and U MR 2 SDWIS / CA1200501 / 4000

How ALDERPOINT COUNTY WATER Compares

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

Metric ALDERPOINT COUNTY WATER California avg Federal benchmark
Total violations 83 21.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 20 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 185 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 ALDERPOINT COUNTY WATER water safe to drink?
ALDERPOINT COUNTY WATER (PWS ID: CA1200501) has 83 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 185 people using Surface Water sources.
How many people does ALDERPOINT COUNTY WATER serve?
ALDERPOINT COUNTY WATER serves 185 people in ALDERPOINT, California. It is a Local-owned system using Surface Water water sources with 86 service connections.
What type of violations does ALDERPOINT COUNTY WATER have?
ALDERPOINT COUNTY WATER has 83 total violations: 20 health-based violations (MCL exceedances or treatment failures), 33 monitoring/reporting violations, and 20 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in ALDERPOINT COUNTY WATER water?
No PFAS testing data is available for ALDERPOINT COUNTY WATER under the EPA's UCMR5 monitoring program.
What water source does ALDERPOINT COUNTY WATER use?
ALDERPOINT COUNTY WATER uses Surface Water 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.

Explore PlainWater

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

Related

Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial