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LEWIS CO WATER DIST #1

Washington — Community Water System — PWSID: WA5347000

System Information

PWSIDWA5347000
System NameLEWIS CO WATER DIST #1
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerYes
First ReportedFeb 7, 1981
Last ReportedDec 11, 2025

Location & Contact

StateWashington
CityNapavine
ZIP Code98565
AddressPO Box 780
OrganizationLEWIS CO WATER DIST #1
Phone—

Population & Service

Population Served1,174
Service Connections116

Drinking Water Violations (394)

This water system has 394 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
Jan 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2015 — Consumer Confidence Rule Other No No — — — Resolved Aug 18, 2015 Consumer Confidence Rule
Jul 1, 2012 Sep 30, 2012 Dalapon MR No Yes — 0.2 mg/L — Resolved Sep 30, 2012 Synthetic Organic Chemicals
Jul 1, 2012 Sep 30, 2012 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Sep 30, 2012 Synthetic Organic Chemicals
Jul 1, 2012 Sep 30, 2012 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2012 Synthetic Organic Chemicals
Jul 1, 2012 Sep 30, 2012 Dinoseb MR No Yes — 0.007 mg/L — Resolved Sep 30, 2012 Synthetic Organic Chemicals
Jul 1, 2012 Sep 30, 2012 Picloram MR No Yes — 0.5 mg/L — Resolved Sep 30, 2012 Synthetic Organic Chemicals
Jan 1, 2012 Mar 31, 2012 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Mar 31, 2012 Synthetic Organic Chemicals
Jan 1, 2012 Mar 31, 2012 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Mar 31, 2012 Synthetic Organic Chemicals
Jan 1, 2012 Mar 31, 2012 Toxaphene MR No Yes — 0.003 mg/L — Resolved Mar 31, 2012 Synthetic Organic Chemicals
Jan 1, 2012 Mar 31, 2012 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Mar 31, 2012 Synthetic Organic Chemicals
Jan 1, 2012 Mar 31, 2012 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Mar 31, 2012 Synthetic Organic Chemicals
Jan 1, 2012 Mar 31, 2012 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Mar 31, 2012 Synthetic Organic Chemicals
Jan 1, 2012 Mar 31, 2012 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Mar 31, 2012 Synthetic Organic Chemicals
Jan 1, 2012 Mar 31, 2012 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Mar 31, 2012 Synthetic Organic Chemicals
Jan 1, 2012 Mar 31, 2012 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Mar 31, 2012 Synthetic Organic Chemicals
Jan 1, 2012 Mar 31, 2012 Endrin MR No Yes — 0.002 mg/L — Resolved Mar 31, 2012 Synthetic Organic Chemicals
Jan 1, 2012 Mar 31, 2012 Atrazine MR No Yes — 0.003 mg/L — Resolved Mar 31, 2012 Synthetic Organic Chemicals
Jan 1, 2012 Mar 31, 2012 Simazine MR No Yes — 0.004 mg/L — Resolved Mar 31, 2012 Synthetic Organic Chemicals
Jan 1, 2012 Mar 31, 2012 LASSO MR No Yes — — — Resolved Mar 31, 2012 Synthetic Organic Chemicals
Jan 1, 2012 Mar 31, 2012 Chlordane MR No Yes — 0.002 mg/L — Resolved Mar 31, 2012 Synthetic Organic Chemicals
Jan 1, 2012 Mar 31, 2012 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Mar 31, 2012 Synthetic Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals
Jan 1, 2008 Mar 31, 2008 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Mar 31, 2008 Volatile Organic Chemicals

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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