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CEDAR LYNN WATER ASSOC

PWS ID: WA5312112 · Custer, Washington 98240

CEDAR LYNN WATER ASSOC serves 116 people in Custer, Washington using Groundwater water sources. It has 69 recorded EPA violations, including 5 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: CEDAR LYNN WATER ASSOC

CEDAR LYNN WATER ASSOC is a private-owned community water system that delivers drinking water to 116 residents in Custer, Washington (Whatcom County) through 33 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 69 total violations for this system , of which 5 (7%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 57 monitoring and reporting violations are on file. The most recent violation on record dates to 2012.

The most frequently cited contaminant at this system is Nitrate, recorded in 9 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 Washington, EPA tracks 4,557 public water systems serving 9,736,844 people, with 314,648 cumulative violations and 20,590 health-based violations on record. About 92% of systems in the state carry at least one violation, and state-wide the average per system is 69 violations. CEDAR LYNN WATER ASSOC's 69 violations sit at the Washington average. Statewide, 98 of 247 UCMR5-tested systems have reported PFAS detections (39.7%). 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
116
Total Violations
69
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
33
County
Whatcom
School/Daycare
No
MCL Violations
5
Monitoring Violations
57
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 9 2006
Coliform (TCR) MCL 5 2004
Coliform (TCR) MR 4 2006
Cadmium MR 2 2008
Chromium MR 2 2008
Fluoride MR 2 2008
Selenium MR 2 2008
Lead and Copper Rule MR 2 2012
Mercury MR 2 2008
Arsenic MR 2 2008
Barium MR 2 2008
o-Dichlorobenzene MR 1 2008
Vinyl chloride MR 1 2008
1,1-Dichloroethylene MR 1 2008
Trichloroethylene MR 1 2008
1,1,2-Trichloroethane MR 1 2008
Tetrachloroethylene MR 1 2008
CHLOROBENZENE MR 1 2008
Benzene MR 1 2008
Ethylbenzene MR 1 2008
CYANIDE MR 1 2008
Beryllium, Total MR 1 2008
Consumer Confidence Rule Other 1 2012
cis-1,2-Dichloroethylene MR 1 2008
DICHLOROMETHANE MR 1 2008
Gross Alpha, Excl. Radon and U MR 1 1979
1,2-DIBROMO-3-CHLOROPROPANE MR 1 2008
1,1,1-Trichloroethane MR 1 2008
1,2,4-Trichlorobenzene MR 1 2008
trans-1,2-Dichloroethylene MR 1 2008

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 CEDAR LYNN WATER ASSOC.

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 WA5312112 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Washington Drinking Water Authority

Washington State Department of Health — Office of Drinking Water is the primacy agency that licenses and inspects CEDAR LYNN WATER ASSOC under EPA-delegated authority.

Open WA regulator portal

Source: Washington State Department of Health — Office 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
2012 Lead and Copper Rule MR 2 SDWIS / WA5312112 / 5000
2012 Consumer Confidence Rule Other 1 SDWIS / WA5312112 / 7000
2008 Cadmium MR 2 SDWIS / WA5312112 / 1015
2008 Chromium MR 2 SDWIS / WA5312112 / 1020
2008 Fluoride MR 2 SDWIS / WA5312112 / 1025
2008 Selenium MR 2 SDWIS / WA5312112 / 1045
2008 Mercury MR 2 SDWIS / WA5312112 / 1035
2008 Arsenic MR 2 SDWIS / WA5312112 / 1005
2008 Barium MR 2 SDWIS / WA5312112 / 1010
2008 o-Dichlorobenzene MR 1 SDWIS / WA5312112 / 2968
2008 Vinyl chloride MR 1 SDWIS / WA5312112 / 2976
2008 1,1-Dichloroethylene MR 1 SDWIS / WA5312112 / 2977
2008 Trichloroethylene MR 1 SDWIS / WA5312112 / 2984
2008 1,1,2-Trichloroethane MR 1 SDWIS / WA5312112 / 2985
2008 Tetrachloroethylene MR 1 SDWIS / WA5312112 / 2987

How CEDAR LYNN WATER ASSOC Compares

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

Metric CEDAR LYNN WATER ASSOC Washington avg Federal benchmark
Total violations 69 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 5 4.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 39.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 116 2,137 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 4,557 regulated public water systems in Washington.

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 CEDAR LYNN WATER ASSOC water safe to drink? ▼
CEDAR LYNN WATER ASSOC (PWS ID: WA5312112) has 69 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 116 people using Groundwater sources.
How many people does CEDAR LYNN WATER ASSOC serve? ▼
CEDAR LYNN WATER ASSOC serves 116 people in Custer, Washington. It is a Private-owned system using Groundwater water sources with 33 service connections.
What type of violations does CEDAR LYNN WATER ASSOC have? ▼
CEDAR LYNN WATER ASSOC has 69 total violations: 5 health-based violations (MCL exceedances or treatment failures), 57 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in CEDAR LYNN WATER ASSOC water? ▼
No PFAS testing data is available for CEDAR LYNN WATER ASSOC under the EPA's UCMR5 monitoring program.
What water source does CEDAR LYNN WATER ASSOC use? ▼
CEDAR LYNN WATER ASSOC 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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