Lewis Co Water Sewer Dist #6

PWSID: WA5344240 · Mossyrock, WA · Serves 740 people

According to EPA Safe Drinking Water Information System (SDWIS), Lewis Co Water Sewer Dist #6 (PWSID WA5344240) in Mossyrock, WA is listed as a CWS water system covering about 740 people. The same extract lists 1 health-based violation record spanning 2025-2025. Those 1 health-based row for Lewis Co Water Sewer Dist #6 cover contaminants such as Lead and Copper Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.

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Health-Based Records

Lewis Co Water Sewer Dist #6 has 1 health-based violation record in this historical extract. Monitoring and reporting records are not included.

Population Served
740
Health-Based Violation Records
1
Distinct Contaminant Codes
1
Source Type
Groundwater

PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 1 distinct EPA contaminant code appears in this system's record, including Lead and Copper Rule. Recorded violations span 2025–2025. Day-to-day primacy enforcement for this system runs through the Washington drinking-water program, not EPA directly.

A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Washington state drinking-water program's public portal.

System Details

EPA ID (PWSID)
WA5344240
System Type
CWS
Water Source
Groundwater
Location
Mossyrock, WA
Population Served
740
Health Violations
Yes (1)

What contaminants are in this water system?

Contaminant Violations Health-Based
Lead and Copper Rule 1 1

Violation History (1)

Contaminant Health Date
Lead and Copper Rule Yes Apr 1, 2025

Frequently Asked Questions

What does EPA SDWIS list for Lewis Co Water Sewer Dist #6?
Lewis Co Water Sewer Dist #6 has 1 health-based violation record in this historical extract. Monitoring and reporting records are not included. The system uses groundwater water as its source.
How many people does Lewis Co Water Sewer Dist #6 serve?
Lewis Co Water Sewer Dist #6 serves 740 people in Mossyrock, WA. It is classified as a CWS water system.
What violations does Lewis Co Water Sewer Dist #6 have?
Lewis Co Water Sewer Dist #6 has 1 health-based violation record in PlainEnviro's extract spanning 2025–2025. Monitoring and reporting records are not included.
What contaminants have been found in Lewis Co Water Sewer Dist #6 water?
Violations have been recorded for 1 contaminant. The most frequent: Lead and Copper Rule.

Compare beyond Washington

Nationwide peers by violations & population served

Cross-state SDWIS systems nearest Lewis Co Water Sewer Dist #6 on cumulative violation count (1) and EPA-reported population served (740). Violation-count peers include CHOCTAW - CONEHATTA, CHOCTAW - PEARL RIVER, CHOCTAW - TUCKER. Population peers include Covered Wells Regional, YAKUTAT PWS, JOHN KNOX VILLAGE.

About This Data

Lewis Co Water Sewer Dist #6 (WA5344240) is drawn from EPA SDWIS. Nearby county systems in this extract include CENTRALIA PUBLIC WORKS - WATER; CHEHALIS WATER DEPARTMENT; WINLOCK CITY OF; NAPAVINE CITY OF. Health-based rows (1 MCL/TT) are historical registry state, not a current drinkability score.

Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services

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