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ROEDERLAND WATER ASSOCIATION

PWS ID: WA5373750 · Lynden, Washington 98264

ROEDERLAND WATER ASSOCIATION serves 150 people in Lynden, Washington using Groundwater water sources. It has 316 recorded EPA violations, including 10 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: ROEDERLAND WATER ASSOCIATION

ROEDERLAND WATER ASSOCIATION is a private-owned community water system that delivers drinking water to 150 residents in Lynden, Washington (Whatcom County) through 51 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 316 total violations for this system , of which 10 (3%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 299 monitoring and reporting violations are on file. The most recent violation on record dates to 2006.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 18 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. ROEDERLAND WATER ASSOCIATION's 316 violations sit above 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
150
Total Violations
316
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
51
County
Whatcom
School/Daycare
No
MCL Violations
10
Monitoring Violations
299
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 18 2005
1,2,4-Trichlorobenzene MR 13 2005
cis-1,2-Dichloroethylene MR 13 2005
o-Dichlorobenzene MR 13 2005
p-Dichlorobenzene MR 13 2005
trans-1,2-Dichloroethylene MR 13 2005
1,2-Dichloroethane MR 13 2005
1,1,1-Trichloroethane MR 13 2005
Carbon tetrachloride MR 13 2005
1,2-Dichloropropane MR 13 2005
1,1,2-Trichloroethane MR 13 2005
CHLOROBENZENE MR 13 2005
Benzene MR 13 2005
DICHLOROMETHANE MR 13 2005
Vinyl chloride MR 13 2005
Tetrachloroethylene MR 13 2005
Styrene MR 13 2005
Toluene MR 13 2005
Ethylbenzene MR 13 2005
Trichloroethylene MR 13 2005
1,1-Dichloroethylene MR 13 2005
Lead and Copper Rule MR 12 2004
Coliform (TCR) MCL 10 2006
Consumer Confidence Rule Other 2 1999
Chromium MR 1 1979
Selenium MR 1 1979
Fluoride MR 1 1979
Cadmium MR 1 1979
Barium MR 1 1979
Nitrate MR 1 1979

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 ROEDERLAND WATER ASSOCIATION.

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 WA5373750 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 ROEDERLAND WATER ASSOCIATION 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
2006 Coliform (TCR) MCL 10 SDWIS / WA5373750 / 3100
2005 Coliform (TCR) MR 18 SDWIS / WA5373750 / 3100
2005 1,2,4-Trichlorobenzene MR 13 SDWIS / WA5373750 / 2378
2005 cis-1,2-Dichloroethylene MR 13 SDWIS / WA5373750 / 2380
2005 o-Dichlorobenzene MR 13 SDWIS / WA5373750 / 2968
2005 p-Dichlorobenzene MR 13 SDWIS / WA5373750 / 2969
2005 trans-1,2-Dichloroethylene MR 13 SDWIS / WA5373750 / 2979
2005 1,2-Dichloroethane MR 13 SDWIS / WA5373750 / 2980
2005 1,1,1-Trichloroethane MR 13 SDWIS / WA5373750 / 2981
2005 Carbon tetrachloride MR 13 SDWIS / WA5373750 / 2982
2005 1,2-Dichloropropane MR 13 SDWIS / WA5373750 / 2983
2005 1,1,2-Trichloroethane MR 13 SDWIS / WA5373750 / 2985
2005 CHLOROBENZENE MR 13 SDWIS / WA5373750 / 2989
2005 Benzene MR 13 SDWIS / WA5373750 / 2990
2005 DICHLOROMETHANE MR 13 SDWIS / WA5373750 / 2964

How ROEDERLAND WATER ASSOCIATION Compares

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

Metric ROEDERLAND WATER ASSOCIATION Washington avg Federal benchmark
Total violations 316 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 10 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 150 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 ROEDERLAND WATER ASSOCIATION water safe to drink? ▼
ROEDERLAND WATER ASSOCIATION (PWS ID: WA5373750) has 316 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 150 people using Groundwater sources.
How many people does ROEDERLAND WATER ASSOCIATION serve? ▼
ROEDERLAND WATER ASSOCIATION serves 150 people in Lynden, Washington. It is a Private-owned system using Groundwater water sources with 51 service connections.
What type of violations does ROEDERLAND WATER ASSOCIATION have? ▼
ROEDERLAND WATER ASSOCIATION has 316 total violations: 10 health-based violations (MCL exceedances or treatment failures), 299 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in ROEDERLAND WATER ASSOCIATION water? ▼
No PFAS testing data is available for ROEDERLAND WATER ASSOCIATION under the EPA's UCMR5 monitoring program.
What water source does ROEDERLAND WATER ASSOCIATION use? ▼
ROEDERLAND WATER ASSOCIATION 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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