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DEER PARK CITY OF

Washington — Community Water System — PWSID: WA5318500

System Information

PWSIDWA5318500
System NameDEER PARK CITY OF
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
CityDeer Park
ZIP Code99006
AddressPO Box F
OrganizationDEER PARK CITY OF
Phone—

Population & Service

Population Served5,045
Service Connections2,369

Drinking Water Violations (67)

This water system has 67 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 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Jul 1, 2018 Sep 30, 2018 LASSO MR No Yes — — — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Toxaphene MR No Yes — 0.003 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Atrazine MR No Yes — 0.003 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Dalapon MR No Yes — 0.2 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Picloram MR No Yes — 0.5 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Dinoseb MR No Yes — 0.007 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Simazine MR No Yes — 0.004 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Chlordane MR No Yes — 0.002 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Endrin MR No Yes — 0.002 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2013 — Consumer Confidence Rule Other No No — — — Resolved Oct 8, 2013 Consumer Confidence Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate Rule
Jan 1, 2006 Dec 31, 2006 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2006 Nitrate 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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