PlainWater
States → Washington

Non-Transient Non-Community Water System · PWS WA53AB183

Wallula Dodd Water System

Washtucna, Washington 99371 - drinking water served from groundwater sources to 1,757 people, tracked in EPA SDWIS and UCMR5.

1,757
People served
108
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 108 drinking-water violations at Wallula Dodd Water System - above the Washington per-system average.

108
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
1,757
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Wallula Dodd Water System

Wallula Dodd Water System is a local-owned non-transient non-community water system that delivers drinking water to 1,757 residents in Washtucna, Washington (Walla Walla County) through 13 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 108 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 108 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Diquat, recorded in 12 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. Statewide, 98 of 247 UCMR5-tested systems have reported PFAS detections (39.7%).

Wallula Dodd Water System's 108 violations sit above the Washington average.

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
1,757
Total Violations
108
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
13
County
Walla Walla
School/Daycare
No
MCL Violations
0
Monitoring Violations
108
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Diquat MR 12 2007
Fluoride MR 9 2016
Lead and Copper Rule MR 9 2008
1,2-DIBROMO-3-CHLOROPROPANE MR 5 2007
ETHYLENE DIBROMIDE MR 5 2007
OXAMYL MR 5 2007
Aldicarb sulfoxide MR 5 2007
Aldicarb sulfone MR 5 2007
Aldicarb MR 5 2007
Carbofuran MR 5 2007
Pentachlorophenol MR 4 2007
Simazine MR 2 2007
Chlordane MR 2 2007
LASSO MR 2 2007
Hexachlorocyclopentadiene MR 2 2007
HEXACHLOROBENZENE MR 2 2007
BHC-GAMMA MR 2 2007
Atrazine MR 2 2007
Dalapon MR 2 2007
Benzo(a)pyrene MR 2 2007
Heptachlor MR 2 2007
Endrin MR 2 2007
Heptachlor epoxide MR 2 2007
Picloram MR 2 2007
Di(2-ethylhexyl) adipate MR 2 2007
Dinoseb MR 2 2007
Di(2-ethylhexyl) phthalate MR 2 2007
2,4,5-TP MR 2 2007
Methoxychlor MR 2 2007
Toxaphene MR 2 2007

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 Wallula Dodd Water System.

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 WA53AB183 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 Wallula Dodd Water System 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
2020 Nitrate MR 1 SDWIS / WA53AB183 / 1040
2016 Fluoride MR 9 SDWIS / WA53AB183 / 1025
2008 Lead and Copper Rule MR 9 SDWIS / WA53AB183 / 5000
2007 Diquat MR 12 SDWIS / WA53AB183 / 2032
2007 1,2-DIBROMO-3-CHLOROPROPANE MR 5 SDWIS / WA53AB183 / 2931
2007 ETHYLENE DIBROMIDE MR 5 SDWIS / WA53AB183 / 2946
2007 OXAMYL MR 5 SDWIS / WA53AB183 / 2036
2007 Aldicarb sulfoxide MR 5 SDWIS / WA53AB183 / 2043
2007 Aldicarb sulfone MR 5 SDWIS / WA53AB183 / 2044
2007 Aldicarb MR 5 SDWIS / WA53AB183 / 2047
2007 Carbofuran MR 5 SDWIS / WA53AB183 / 2046
2007 Pentachlorophenol MR 4 SDWIS / WA53AB183 / 2326
2007 Simazine MR 2 SDWIS / WA53AB183 / 2037
2007 Chlordane MR 2 SDWIS / WA53AB183 / 2959
2007 LASSO MR 2 SDWIS / WA53AB183 / 2051

How Wallula Dodd Water System Compares

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

Metric Wallula Dodd Water System Washington avg Federal benchmark
Total violations 108 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 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 1,757 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 (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 Wallula Dodd Water System water safe to drink? ▼
Wallula Dodd Water System (PWS ID: WA53AB183) has 108 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,757 people using Groundwater sources.
How many people does Wallula Dodd Water System serve? ▼
Wallula Dodd Water System serves 1,757 people in Washtucna, Washington. It is a Local-owned system using Groundwater water sources with 13 service connections.
What type of violations does Wallula Dodd Water System have? ▼
Wallula Dodd Water System has 108 total violations: 0 health-based violations (MCL exceedances or treatment failures), 108 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Wallula Dodd Water System water? ▼
No PFAS testing data is available for Wallula Dodd Water System under the EPA's UCMR5 monitoring program.
What water source does Wallula Dodd Water System use? ▼
Wallula Dodd Water System uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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.