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UPPER PRESTON WATER ASSN

Washington — Community Water System — PWSID: WA5390700

System Information

PWSIDWA5390700
System NameUPPER PRESTON WATER ASSN
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedFeb 7, 1981
Last ReportedDec 11, 2025

Location & Contact

StateWashington
CityFalls City
ZIP Code98024
AddressPO Box 1027
OrganizationUPPER PRESTON WATER ASSN
Phone—

Population & Service

Population Served150
Service Connections60

Drinking Water Violations (24)

This water system has 24 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
Feb 1, 2011 Feb 28, 2011 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 28, 2011 Total Coliform Rule
Jan 1, 2010 Mar 31, 2010 Arsenic MCL Yes No 15.8 MG/L 0.010 mg/L — Resolved Mar 31, 2010 Arsenic Rule
Jan 1, 2010 Mar 31, 2010 Arsenic MCL Yes No 15.8 MG/L 0.010 mg/L — Resolved Mar 31, 2010 Arsenic Rule
Jan 1, 2007 Mar 31, 2007 Arsenic MR No Yes — 0.010 mg/L — Resolved Mar 31, 2007 Arsenic Rule
Jan 1, 2007 Mar 31, 2007 Arsenic MR No Yes — 0.010 mg/L — Resolved Mar 31, 2007 Arsenic Rule
Jan 1, 2007 Mar 31, 2007 Arsenic MR No Yes — 0.010 mg/L — Resolved Mar 31, 2007 Arsenic Rule
Jan 1, 2007 Mar 31, 2007 Arsenic MR No Yes — 0.010 mg/L — Resolved Mar 31, 2007 Arsenic Rule
Jan 1, 2007 Mar 31, 2007 Arsenic MR No Yes — 0.010 mg/L — Resolved Mar 31, 2007 Arsenic Rule
Jan 1, 2007 Mar 31, 2007 Arsenic MR No Yes — 0.010 mg/L — Resolved Mar 31, 2007 Arsenic Rule
Dec 1, 1992 Dec 31, 1992 Coliform (TCR) MR No No — 5% of samples — Archived Dec 31, 1992 Total Coliform Rule
Dec 1, 1992 Dec 31, 1992 Coliform (TCR) MR No No — 5% of samples — Archived Dec 31, 1992 Total Coliform Rule
Nov 1, 1992 Nov 30, 1992 Coliform (TCR) MCL Yes No — 5% of samples — Archived Nov 30, 1992 Total Coliform Rule
Nov 1, 1992 Nov 30, 1992 Coliform (TCR) MCL Yes No — 5% of samples — Archived Nov 30, 1992 Total Coliform Rule
Nov 1, 1992 Nov 30, 1992 Coliform (TCR) MR No Yes — 5% of samples — Archived Nov 30, 1992 Total Coliform Rule
Nov 1, 1992 Nov 30, 1992 Coliform (TCR) MR No Yes — 5% of samples — Archived Nov 30, 1992 Total Coliform Rule
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 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 Nitrate MR No No — 10 mg/L — Archived Oct 31, 1979 Nitrate Rule
Oct 1, 1979 Oct 31, 1979 Arsenic MR No No — 0.010 mg/L — Archived Oct 31, 1979 Arsenic Rule
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 Barium MR No No — 2 mg/L — Archived Oct 31, 1979 Inorganic Chemicals
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 Chromium MR No No — 0.1 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

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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