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Community Water System · PWS WA5392250

Waitsburg City of

Waitsburg, Washington 99361 - drinking water served from groundwater sources to 1,817 people, tracked in EPA SDWIS and UCMR5.

1,817
People served
20
EPA violations
1
Health-based
Untested
UCMR5 result

The verdict

EPA records 20 drinking-water violations at Waitsburg City of, 5% of them health-based - below the Washington per-system average.

20
Total EPA violations on record
5%
Health-based (MCL / treatment failure)
1,817
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Waitsburg City of

Waitsburg City of is a local-owned community water system that delivers drinking water to 1,817 residents in Waitsburg, Washington (Walla Walla County) through 734 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 20 total violations for this system , of which 1 (5%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 18 monitoring and reporting violations are on file. The most recent violation on record dates to 2016.

The most frequently cited contaminant at this system is Consumer Confidence Rule, recorded in 1 violation (Other). 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%).

Waitsburg City of's 20 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
1,817
Total Violations
20
Health-Based Violations
1
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
734
County
Walla Walla
School/Daycare
No
MCL Violations
1
Monitoring Violations
18
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 1 1999
Arsenic MR 1 2008
Cadmium MR 1 2008
Chromium MR 1 2008
CYANIDE MR 1 2008
Fluoride MR 1 2008
Thallium, Total MR 1 2008
1,2-DIBROMO-3-CHLOROPROPANE MR 1 2008
ETHYLENE DIBROMIDE MR 1 2008
TTHM MR 1 2016
Total Haloacetic Acids (HAA5) MR 1 2016
Gross Alpha, Excl. Radon and U MR 1 1979
Beryllium, Total MR 1 2008
Nickel MR 1 2008
Coliform (TCR) MCL 1 1993
Barium MR 1 2008
Selenium MR 1 2008
Mercury MR 1 2008
Lead and Copper Rule MR 1 1998
Antimony, Total MR 1 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 Waitsburg City of.

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 WA5392250 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 Waitsburg City of 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
2016 TTHM MR 1 SDWIS / WA5392250 / 2950
2016 Total Haloacetic Acids (HAA5) MR 1 SDWIS / WA5392250 / 2456
2008 Arsenic MR 1 SDWIS / WA5392250 / 1005
2008 Cadmium MR 1 SDWIS / WA5392250 / 1015
2008 Chromium MR 1 SDWIS / WA5392250 / 1020
2008 CYANIDE MR 1 SDWIS / WA5392250 / 1024
2008 Fluoride MR 1 SDWIS / WA5392250 / 1025
2008 Thallium, Total MR 1 SDWIS / WA5392250 / 1085
2008 1,2-DIBROMO-3-CHLOROPROPANE MR 1 SDWIS / WA5392250 / 2931
2008 ETHYLENE DIBROMIDE MR 1 SDWIS / WA5392250 / 2946
2008 Beryllium, Total MR 1 SDWIS / WA5392250 / 1075
2008 Nickel MR 1 SDWIS / WA5392250 / 1036
2008 Barium MR 1 SDWIS / WA5392250 / 1010
2008 Selenium MR 1 SDWIS / WA5392250 / 1045
2008 Mercury MR 1 SDWIS / WA5392250 / 1035

How Waitsburg City of Compares

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

Metric Waitsburg City of Washington avg Federal benchmark
Total violations 20 69 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 1 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 1,817 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 Waitsburg City of water safe to drink? ▼
Waitsburg City of (PWS ID: WA5392250) has 20 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,817 people using Groundwater sources.
How many people does Waitsburg City of serve? ▼
Waitsburg City of serves 1,817 people in Waitsburg, Washington. It is a Local-owned system using Groundwater water sources with 734 service connections.
What type of violations does Waitsburg City of have? ▼
Waitsburg City of has 20 total violations: 1 health-based violations (MCL exceedances or treatment failures), 18 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Waitsburg City of water? ▼
No PFAS testing data is available for Waitsburg City of under the EPA's UCMR5 monitoring program.
What water source does Waitsburg City of use? ▼
Waitsburg City of 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.