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RED MOUNTAIN WATER ASSOCIATION

Washington — Community Water System — PWSID: WA5306091

System Information

PWSIDWA5306091
System NameRED MOUNTAIN WATER ASSOCIATION
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedOct 29, 1981
Last ReportedDec 11, 2025

Location & Contact

StateWashington
CityPasco
ZIP Code99302
AddressPO Box 4766
OrganizationRED MOUNTAIN WATER ASSOCIATION
Phone—

Population & Service

Population Served200
Service Connections87

Drinking Water Violations (453)

This water system has 453 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 Sep 30, 2025 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Picloram MR No Yes — 0.5 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Endrin MR No Yes — 0.002 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Simazine MR No Yes — 0.004 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Dinoseb MR No Yes — 0.007 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 LASSO MR No Yes — — — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Atrazine MR No Yes — 0.003 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Toxaphene MR No Yes — 0.003 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Toluene MR No Yes — 1 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Dalapon MR No Yes — 0.2 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Styrene MR No Yes — 0.1 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Chlordane MR No Yes — 0.002 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2025 Sep 30, 2025 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Benzene MR No Yes — 0.005 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Sep 30, 2025 Volatile Organic Chemicals
Jul 1, 2025 Sep 30, 2025 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Sep 30, 2025 Synthetic Organic Chemicals
Jul 1, 2015 — Consumer Confidence Rule Other No No — — — Resolved Sep 3, 2015 Consumer Confidence Rule
Sep 1, 2010 Sep 30, 2010 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2010 Total Coliform Rule
Jan 1, 2009 Dec 31, 2009 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2009 Nitrate Rule
Oct 1, 2008 Dec 31, 2008 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2008 Volatile Organic Chemicals
Oct 1, 2008 Dec 31, 2008 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2008 Volatile Organic Chemicals
Oct 1, 2008 Dec 31, 2008 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2008 Volatile Organic Chemicals
Oct 1, 2008 Dec 31, 2008 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2008 Volatile Organic Chemicals
Oct 1, 2008 Dec 31, 2008 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2008 Volatile Organic Chemicals
Oct 1, 2008 Dec 31, 2008 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2008 Volatile Organic Chemicals
Oct 1, 2008 Dec 31, 2008 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 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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