PlainWater

RAINIER SCHOOL

PWS ID: WA5370850 · Buckley, Washington 98321

RAINIER SCHOOL serves 556 people in Buckley, Washington using Surface Water water sources. It has 341 recorded EPA violations, including 2 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: RAINIER SCHOOL

RAINIER SCHOOL is a state-owned community water system that delivers drinking water to 556 residents in Buckley, Washington (Pierce County) through 99 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 341 total violations for this system , of which 2 (1%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 336 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

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 SCHOOL's 341 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
556
Total Violations
341
Health-Based Violations
2
Water Source
Surface Water

System Details

System Type
Community
Owner Type
State
Connections
99
County
Pierce
School/Daycare
No
MCL Violations
2
Monitoring Violations
336
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Nitrate MR 22 2007
Coliform (TCR) MR 18 1992
Diquat MR 13 2007
ETHYLENE DIBROMIDE MR 7 2007
DICHLOROMETHANE MR 7 2008
o-Dichlorobenzene MR 7 2008
p-Dichlorobenzene MR 7 2008
1,1-Dichloroethylene MR 7 2008
1,2-Dichloroethane MR 7 2008
1,1,1-Trichloroethane MR 7 2008
Carbon tetrachloride MR 7 2008
Tetrachloroethylene MR 7 2008
CHLOROBENZENE MR 7 2008
Ethylbenzene MR 7 2008
Styrene MR 7 2008
1,2-DIBROMO-3-CHLOROPROPANE MR 7 2007
Vinyl chloride MR 7 2008
Benzene MR 7 2008
1,1,2-Trichloroethane MR 7 2008
trans-1,2-Dichloroethylene MR 7 2008
1,2-Dichloropropane MR 7 2008
Toluene MR 7 2008
Trichloroethylene MR 7 2008
cis-1,2-Dichloroethylene MR 7 2008
1,2,4-Trichlorobenzene MR 7 2008
Pentachlorophenol MR 6 2007
Heptachlor epoxide MR 4 2007
Barium MR 4 2008
Chromium MR 4 2008
Fluoride MR 4 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 RAINIER SCHOOL.

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 WA5370850 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 SCHOOL 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
2023 Total Haloacetic Acids (HAA5) MCL 2 SDWIS / WA5370850 / 2456
2022 Revised Total Coliform Rule MON 1 SDWIS / WA5370850 / 8000
2012 Consumer Confidence Rule Other 2 SDWIS / WA5370850 / 7000
2008 DICHLOROMETHANE MR 7 SDWIS / WA5370850 / 2964
2008 o-Dichlorobenzene MR 7 SDWIS / WA5370850 / 2968
2008 p-Dichlorobenzene MR 7 SDWIS / WA5370850 / 2969
2008 1,1-Dichloroethylene MR 7 SDWIS / WA5370850 / 2977
2008 1,2-Dichloroethane MR 7 SDWIS / WA5370850 / 2980
2008 1,1,1-Trichloroethane MR 7 SDWIS / WA5370850 / 2981
2008 Carbon tetrachloride MR 7 SDWIS / WA5370850 / 2982
2008 Tetrachloroethylene MR 7 SDWIS / WA5370850 / 2987
2008 CHLOROBENZENE MR 7 SDWIS / WA5370850 / 2989
2008 Ethylbenzene MR 7 SDWIS / WA5370850 / 2992
2008 Styrene MR 7 SDWIS / WA5370850 / 2996
2008 Vinyl chloride MR 7 SDWIS / WA5370850 / 2976

How RAINIER SCHOOL Compares

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

Metric RAINIER SCHOOL Washington avg Federal benchmark
Total violations 341 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 2 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 556 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 SCHOOL water safe to drink?
RAINIER SCHOOL (PWS ID: WA5370850) has 341 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 556 people using Surface Water sources.
How many people does RAINIER SCHOOL serve?
RAINIER SCHOOL serves 556 people in Buckley, Washington. It is a State-owned system using Surface Water water sources with 99 service connections.
What type of violations does RAINIER SCHOOL have?
RAINIER SCHOOL has 341 total violations: 2 health-based violations (MCL exceedances or treatment failures), 336 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in RAINIER SCHOOL water?
No PFAS testing data is available for RAINIER SCHOOL under the EPA's UCMR5 monitoring program.
What water source does RAINIER SCHOOL use?
RAINIER SCHOOL 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