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Community Water System · PWS WA5392600

Wallula Water District

College Place, Washington 99324 - drinking water served from groundwater sources to 200 people, tracked in EPA SDWIS and UCMR5.

200
People served
53
EPA violations
2
Health-based
Untested
UCMR5 result

The verdict

EPA records 53 drinking-water violations at Wallula Water District, 4% of them health-based - below the Washington per-system average.

53
Total EPA violations on record
4%
Health-based (MCL / treatment failure)
200
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Wallula Water District

Wallula Water District is a local-owned community water system that delivers drinking water to 200 residents in College Place, Washington (Walla Walla County) through 62 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 53 total violations for this system , of which 2 (4%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 48 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 Arsenic, recorded in 8 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 Water District's 53 violations sit below 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
200
Total Violations
53
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
62
County
Walla Walla
School/Daycare
No
MCL Violations
2
Monitoring Violations
48
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MR 8 2022
Fluoride MR 8 2024
Diquat MR 5 2005
Consumer Confidence Rule Other 2 2025
Barium MR 2 2011
Cadmium MR 2 2011
CYANIDE MR 2 2011
Nickel MR 2 2011
Selenium MR 2 2011
Antimony, Total MR 2 2011
Chromium MR 2 2011
Mercury MR 2 2011
Beryllium, Total MR 2 2011
Lead and Copper Rule MR 2 2019
Thallium, Total MR 2 2011
ETHYLENE DIBROMIDE MR 1 2002
Arsenic MCL 1 2010
Coliform (TCR) MR 1 2014
Nitrite MR 1 2011
Gross Alpha, Excl. Radon and U MR 1 1979
Coliform (TCR) MCL 1 2006
1,2-DIBROMO-3-CHLOROPROPANE MR 1 2002

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 Water District.

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 WA5392600 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 Water District 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 Consumer Confidence Rule Other 2 SDWIS / WA5392600 / 7000
2024 Fluoride MR 8 SDWIS / WA5392600 / 1025
2022 Arsenic MR 8 SDWIS / WA5392600 / 1005
2019 Lead and Copper Rule MR 2 SDWIS / WA5392600 / 5000
2014 Coliform (TCR) MR 1 SDWIS / WA5392600 / 3100
2011 Barium MR 2 SDWIS / WA5392600 / 1010
2011 Cadmium MR 2 SDWIS / WA5392600 / 1015
2011 CYANIDE MR 2 SDWIS / WA5392600 / 1024
2011 Nickel MR 2 SDWIS / WA5392600 / 1036
2011 Selenium MR 2 SDWIS / WA5392600 / 1045
2011 Antimony, Total MR 2 SDWIS / WA5392600 / 1074
2011 Chromium MR 2 SDWIS / WA5392600 / 1020
2011 Mercury MR 2 SDWIS / WA5392600 / 1035
2011 Beryllium, Total MR 2 SDWIS / WA5392600 / 1075
2011 Thallium, Total MR 2 SDWIS / WA5392600 / 1085

How Wallula Water District Compares

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

Metric Wallula Water District Washington avg Federal benchmark
Total violations 53 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 200 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 Water District water safe to drink? ▼
Wallula Water District (PWS ID: WA5392600) has 53 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 200 people using Groundwater sources.
How many people does Wallula Water District serve? ▼
Wallula Water District serves 200 people in College Place, Washington. It is a Local-owned system using Groundwater water sources with 62 service connections.
What type of violations does Wallula Water District have? ▼
Wallula Water District has 53 total violations: 2 health-based violations (MCL exceedances or treatment failures), 48 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Wallula Water District water? ▼
No PFAS testing data is available for Wallula Water District under the EPA's UCMR5 monitoring program.
What water source does Wallula Water District use? ▼
Wallula Water District 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.