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WALCZAK 620

PWS ID: WA5392350 · Lacey, Washington 98503

WALCZAK 620 serves 256 people in Lacey, Washington using Groundwater water sources. It has 94 recorded EPA violations, including 3 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: WALCZAK 620

WALCZAK 620 is a local-owned community water system that delivers drinking water to 256 residents in Lacey, Washington (King County) through 76 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 94 total violations for this system , of which 3 (3%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 86 monitoring and reporting violations are on file. The most recent violation on record dates to 2013.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 19 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. WALCZAK 620's 94 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
256
Total Violations
94
Health-Based Violations
3
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
76
County
King
School/Daycare
No
MCL Violations
3
Monitoring Violations
86
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 19 2008
Nitrate MR 13 2007
Barium MR 5 2002
Cadmium MR 5 2002
Mercury MR 5 2002
Selenium MR 5 2002
Chromium MR 5 2002
Fluoride MR 5 2002
Antimony, Total MR 4 2002
Thallium, Total MR 4 2002
Nickel MR 4 2002
CYANIDE MR 4 2002
Beryllium, Total MR 4 2002
Coliform (TCR) MCL 3 1997
Coliform (TCR) MR 2 2013
Consumer Confidence Rule Other 2 2011
Gross Alpha, Excl. Radon and U MR 1 1979
Arsenic MR 1 1979

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 WALCZAK 620.

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 WA5392350 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 WALCZAK 620 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
2013 Coliform (TCR) MR 2 SDWIS / WA5392350 / 3100
2011 Consumer Confidence Rule Other 2 SDWIS / WA5392350 / 7000
2008 Lead and Copper Rule MR 19 SDWIS / WA5392350 / 5000
2007 Nitrate MR 13 SDWIS / WA5392350 / 1040
2002 Barium MR 5 SDWIS / WA5392350 / 1010
2002 Cadmium MR 5 SDWIS / WA5392350 / 1015
2002 Mercury MR 5 SDWIS / WA5392350 / 1035
2002 Selenium MR 5 SDWIS / WA5392350 / 1045
2002 Chromium MR 5 SDWIS / WA5392350 / 1020
2002 Fluoride MR 5 SDWIS / WA5392350 / 1025
2002 Antimony, Total MR 4 SDWIS / WA5392350 / 1074
2002 Thallium, Total MR 4 SDWIS / WA5392350 / 1085
2002 Nickel MR 4 SDWIS / WA5392350 / 1036
2002 CYANIDE MR 4 SDWIS / WA5392350 / 1024
2002 Beryllium, Total MR 4 SDWIS / WA5392350 / 1075

How WALCZAK 620 Compares

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

Metric WALCZAK 620 Washington avg Federal benchmark
Total violations 94 69 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 3 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 256 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 WALCZAK 620 water safe to drink? ▼
WALCZAK 620 (PWS ID: WA5392350) has 94 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 256 people using Groundwater sources.
How many people does WALCZAK 620 serve? ▼
WALCZAK 620 serves 256 people in Lacey, Washington. It is a Local-owned system using Groundwater water sources with 76 service connections.
What type of violations does WALCZAK 620 have? ▼
WALCZAK 620 has 94 total violations: 3 health-based violations (MCL exceedances or treatment failures), 86 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in WALCZAK 620 water? ▼
No PFAS testing data is available for WALCZAK 620 under the EPA's UCMR5 monitoring program.
What water source does WALCZAK 620 use? ▼
WALCZAK 620 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.

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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.

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial