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States → EPA Region 10 — Tribal Water Systems

Community Water System · PWS 105300042

Adams View

Wapato, EPA Region 10 — Tribal Water Systems 98951 - drinking water served from groundwater sources to 790 people, tracked in EPA SDWIS and UCMR5.

790
People served
429
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 429 drinking-water violations at Adams View.

429
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
790
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Adams View

Adams View is a native american-owned community water system that delivers drinking water to 790 residents in Wapato, EPA Region 10 — Tribal Water Systems through 159 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 429 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 418 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 Coliform (TCR), recorded in 25 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

EPA Region 10 — Tribal Water Systems has thousands of regulated public water systems tracked by EPA under the Safe Drinking Water Act.

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
790
Total Violations
429
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
159
School/Daycare
No
MCL Violations
0
Monitoring Violations
418
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 25 2016
Chlorine MR 11 2025
2,3,7,8-TCDD MR 8 2017
ETHYLENE DIBROMIDE MR 7 2017
cis-1,2-Dichloroethylene MR 7 2017
Xylenes, Total MR 7 2017
DICHLOROMETHANE MR 7 2017
o-Dichlorobenzene MR 7 2017
p-Dichlorobenzene MR 7 2017
1,1-Dichloroethylene MR 7 2017
1,2-Dichloroethane MR 7 2017
Carbon tetrachloride MR 7 2017
Tetrachloroethylene MR 7 2017
1,2-Dichloropropane MR 7 2017
1,1,2-Trichloroethane MR 7 2017
Benzene MR 7 2017
Toluene MR 7 2017
Ethylbenzene MR 7 2017
1,2,4-Trichlorobenzene MR 7 2017
CHLOROBENZENE MR 7 2017
Styrene MR 7 2017
Vinyl chloride MR 7 2017
trans-1,2-Dichloroethylene MR 7 2017
1,1,1-Trichloroethane MR 7 2017
Trichloroethylene MR 7 2017
1,2-DIBROMO-3-CHLOROPROPANE MR 7 2017
2,4,5-TP MR 6 2017
HEXACHLOROBENZENE MR 6 2017
Benzo(a)pyrene MR 6 2017
Total Polychlorinated Biphenyls (PCB) MR 6 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 Adams View.

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 105300042 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 10 — Tribal Water Systems Drinking Water Authority

EPA Region 10 — Tribal Water Systems's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find 10 regulator via EPA SDWIS

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 Chlorine MR 11 SDWIS / 105300042 / 0999
2025 Revised Total Coliform Rule RPT 3 SDWIS / 105300042 / 8000
2020 Lead and Copper Rule MR 6 SDWIS / 105300042 / 5000
2017 2,3,7,8-TCDD MR 8 SDWIS / 105300042 / 2063
2017 ETHYLENE DIBROMIDE MR 7 SDWIS / 105300042 / 2946
2017 cis-1,2-Dichloroethylene MR 7 SDWIS / 105300042 / 2380
2017 Xylenes, Total MR 7 SDWIS / 105300042 / 2955
2017 DICHLOROMETHANE MR 7 SDWIS / 105300042 / 2964
2017 o-Dichlorobenzene MR 7 SDWIS / 105300042 / 2968
2017 p-Dichlorobenzene MR 7 SDWIS / 105300042 / 2969
2017 1,1-Dichloroethylene MR 7 SDWIS / 105300042 / 2977
2017 1,2-Dichloroethane MR 7 SDWIS / 105300042 / 2980
2017 Carbon tetrachloride MR 7 SDWIS / 105300042 / 2982
2017 Tetrachloroethylene MR 7 SDWIS / 105300042 / 2987
2017 1,2-Dichloropropane MR 7 SDWIS / 105300042 / 2983

How Adams View Compares

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

Metric Adams View EPA Region 10 — Tribal Water Systems avg Federal benchmark
Total violations 429 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 790 - Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across all regulated public water systems in EPA Region 10 — Tribal Water Systems.

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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Adams View water safe to drink? ▼
Adams View (PWS ID: 105300042) has 429 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 790 people using Groundwater sources.
How many people does Adams View serve? ▼
Adams View serves 790 people in Wapato, EPA Region 10 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 159 service connections.
What type of violations does Adams View have? ▼
Adams View has 429 total violations: 0 health-based violations (MCL exceedances or treatment failures), 418 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Adams View water? ▼
No PFAS testing data is available for Adams View under the EPA's UCMR5 monitoring program.
What water source does Adams View use? ▼
Adams View 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.
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.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.