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Lewis Co Water Sewer Dist #6

Washington — Community Water System — PWSID: WA5344240

System Information

PWSIDWA5344240
System NameLewis Co Water Sewer Dist #6
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedFeb 7, 1981
Last ReportedDec 11, 2025

Location & Contact

StateWashington
CityMossyrock
ZIP Code98564
Address100 Lakeside Drive West
OrganizationLewis Co Water Sewer Dist #6
Phone—

Population & Service

Population Served740
Service Connections262

Drinking Water Violations (30)

This water system has 30 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Resolved Sep 25, 2025 Consumer Confidence Rule
Apr 1, 2025 — Lead and Copper Rule TT Yes No — TT — Resolved Sep 22, 2025 Lead and Copper Rule
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Resolved Feb 19, 2025 Consumer Confidence Rule
Jul 1, 2023 — Consumer Confidence Rule Other No No — — — Resolved Sep 29, 2023 Consumer Confidence Rule
Jul 1, 2020 — Consumer Confidence Rule Other No No — — — Resolved Jul 2, 2021 Consumer Confidence Rule
Nov 1, 2017 Nov 30, 2017 Revised Total Coliform Rule MON No Yes — — — Resolved Nov 30, 2017 Revised Total Coliform Rule
Jul 1, 2017 — Consumer Confidence Rule Other No No — — — Resolved Feb 16, 2018 Consumer Confidence Rule
Jan 1, 2016 Dec 31, 2016 TTHM MR No Yes — 0.080 mg/L — Resolved Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2016 Dec 31, 2016 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Dec 31, 2016 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Dec 31, 2013 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2013 Nitrate Rule
Jan 1, 2013 Dec 31, 2013 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2013 Nitrate Rule
Jul 1, 2012 — Consumer Confidence Rule Other No No — — — Resolved Oct 18, 2012 Consumer Confidence Rule
Nov 1, 1998 Nov 30, 1998 Coliform (TCR) MCL Yes No — 5% of samples — Archived Nov 30, 1998 Total Coliform Rule
Nov 1, 1998 Nov 30, 1998 Coliform (TCR) MCL Yes No — 5% of samples — Archived Nov 30, 1998 Total Coliform Rule
Nov 1, 1998 Nov 30, 1998 Coliform (TCR) MCL Yes No — 5% of samples — Archived Nov 30, 1998 Total Coliform Rule
Jul 1, 1997 Jul 31, 1997 Coliform (TCR) MR No Yes — 5% of samples — Archived Jul 31, 1997 Total Coliform Rule
Jul 1, 1997 Jul 31, 1997 Coliform (TCR) MR No Yes — 5% of samples — Archived Jul 31, 1997 Total Coliform Rule
Jun 1, 1997 Jun 30, 1997 Coliform (TCR) MCL Yes No — 5% of samples — Archived Jun 30, 1997 Total Coliform Rule
Jun 1, 1997 Jun 30, 1997 Coliform (TCR) MCL Yes No — 5% of samples — Archived Jun 30, 1997 Total Coliform Rule
Jun 1, 1997 Jun 30, 1997 Coliform (TCR) MCL Yes No — 5% of samples — Archived Jun 30, 1997 Total Coliform Rule
Jun 1, 1997 Jun 30, 1997 Coliform (TCR) MCL Yes No — 5% of samples — Archived Jun 30, 1997 Total Coliform Rule
Oct 1, 1979 Oct 31, 1979 Mercury MR No No — 0.002 mg/L — Archived Oct 31, 1979 Inorganic Chemicals
Oct 1, 1979 Oct 31, 1979 Selenium MR No No — 0.05 mg/L — Archived Oct 31, 1979 Inorganic Chemicals
Oct 1, 1979 Oct 31, 1979 Barium MR No No — 2 mg/L — Archived Oct 31, 1979 Inorganic Chemicals
Oct 1, 1979 Oct 31, 1979 Chromium MR No No — 0.1 mg/L — Archived Oct 31, 1979 Inorganic Chemicals
Oct 1, 1979 Oct 31, 1979 Fluoride MR No No — 4.0 mg/L — Archived Oct 31, 1979 Inorganic Chemicals
Oct 1, 1979 Oct 31, 1979 Cadmium MR No No — 0.005 mg/L — Archived Oct 31, 1979 Inorganic Chemicals
Oct 1, 1979 Oct 31, 1979 Nitrate MR No No — 10 mg/L — Archived Oct 31, 1979 Nitrate Rule
Oct 1, 1979 Oct 31, 1979 Gross Alpha, Excl. Radon and U MR No No — 15 pCi/L — Archived Oct 31, 1979 Radionuclides and Revised Rad Rule
Oct 1, 1979 Oct 31, 1979 Arsenic MR No No — 0.010 mg/L — Archived Oct 31, 1979 Arsenic Rule

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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