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RAINIER TRACTS WATER ASSN

PWS ID: WA5370910 · Moses Lake, Washington 98837

RAINIER TRACTS WATER ASSN serves 61 people in Moses Lake, Washington using Groundwater water sources. It has 193 recorded EPA violations, including 4 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: RAINIER TRACTS WATER ASSN

RAINIER TRACTS WATER ASSN is a private-owned community water system that delivers drinking water to 61 residents in Moses Lake, Washington (Adams County) through 20 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 193 total violations for this system , of which 4 (2%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 178 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Nitrate, 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 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. RAINIER TRACTS WATER ASSN's 193 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
61
Total Violations
193
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
20
County
Adams
School/Daycare
No
MCL Violations
4
Monitoring Violations
178
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 22 2025
Coliform (TCR) MR 22 2000
Dalapon MR 8 2007
Dinoseb MR 8 2007
2,4,5-TP MR 8 2007
Pentachlorophenol MR 8 2007
Picloram MR 8 2007
Arsenic MR 5 2017
Consumer Confidence Rule Other 4 2025
Lead and Copper Rule MR 4 2019
Coliform (TCR) MCL 4 1991
Barium MR 3 2011
Chromium MR 3 2011
Fluoride MR 3 2011
Selenium MR 3 2011
Cadmium MR 3 2011
Mercury MR 3 2011
Endrin MR 2 2017
Di(2-ethylhexyl) adipate MR 2 2017
Atrazine MR 2 2017
LASSO MR 2 2017
Heptachlor MR 2 2017
Heptachlor epoxide MR 2 2017
Benzo(a)pyrene MR 2 2017
Chlordane MR 2 2017
CYANIDE MR 2 2011
Nitrite MR 2 2011
Beryllium, Total MR 2 2011
Thallium, Total MR 2 2011
Di(2-ethylhexyl) phthalate MR 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 RAINIER TRACTS WATER ASSN.

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 WA5370910 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 RAINIER TRACTS WATER ASSN 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
2025 Nitrate MR 22 SDWIS / WA5370910 / 1040
2025 Consumer Confidence Rule Other 4 SDWIS / WA5370910 / 7000
2024 Revised Total Coliform Rule MON 2 SDWIS / WA5370910 / 8000
2019 Lead and Copper Rule MR 4 SDWIS / WA5370910 / 5000
2019 TTHM MR 1 SDWIS / WA5370910 / 2950
2019 Total Haloacetic Acids (HAA5) MR 1 SDWIS / WA5370910 / 2456
2017 Arsenic MR 5 SDWIS / WA5370910 / 1005
2017 Endrin MR 2 SDWIS / WA5370910 / 2005
2017 Di(2-ethylhexyl) adipate MR 2 SDWIS / WA5370910 / 2035
2017 Atrazine MR 2 SDWIS / WA5370910 / 2050
2017 LASSO MR 2 SDWIS / WA5370910 / 2051
2017 Heptachlor MR 2 SDWIS / WA5370910 / 2065
2017 Heptachlor epoxide MR 2 SDWIS / WA5370910 / 2067
2017 Benzo(a)pyrene MR 2 SDWIS / WA5370910 / 2306
2017 Chlordane MR 2 SDWIS / WA5370910 / 2959

How RAINIER TRACTS WATER ASSN Compares

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

Metric RAINIER TRACTS WATER ASSN Washington avg Federal benchmark
Total violations 193 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 4 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 61 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 RAINIER TRACTS WATER ASSN water safe to drink? ▼
RAINIER TRACTS WATER ASSN (PWS ID: WA5370910) has 193 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 61 people using Groundwater sources.
How many people does RAINIER TRACTS WATER ASSN serve? ▼
RAINIER TRACTS WATER ASSN serves 61 people in Moses Lake, Washington. It is a Private-owned system using Groundwater water sources with 20 service connections.
What type of violations does RAINIER TRACTS WATER ASSN have? ▼
RAINIER TRACTS WATER ASSN has 193 total violations: 4 health-based violations (MCL exceedances or treatment failures), 178 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in RAINIER TRACTS WATER ASSN water? ▼
No PFAS testing data is available for RAINIER TRACTS WATER ASSN under the EPA's UCMR5 monitoring program.
What water source does RAINIER TRACTS WATER ASSN use? ▼
RAINIER TRACTS WATER ASSN 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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