CURLEW LAKE STATE PARK

Washington — Transient Non-Community — PWSID: WA53SP200

System Information

PWSID	WA53SP200
System Name	CURLEW LAKE STATE PARK
System Type	Transient Non-Community
Water Source	Ground Water
Activity Status	Active
Owner Type	State
EPA Region	10
Serves School	No
Wholesaler	No
First Reported	Feb 7, 1981
Last Reported	Dec 11, 2025

Location & Contact

State	Washington
City	Winthrop
ZIP Code	98862
Address	561 Bear Creek RD
Organization	CURLEW LAKE STATE PARK
Phone	—

Population & Service

Population Served	779
Service Connections	48

Drinking Water Violations (68)

This water system has 68 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
Nov 1, 2020	Nov 30, 2020	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Nov 30, 2020	Revised Total Coliform Rule
Aug 1, 2020	Aug 31, 2020	Revised Total Coliform Rule	MCL	Yes	No	—	—	—	Resolved	Aug 31, 2020	Revised Total Coliform Rule
Jan 1, 2017	Mar 31, 2017	Nitrate	MCL	Yes	No	12.1 MG/L	10 mg/L	—	Resolved	Mar 31, 2017	Nitrate Rule
Jan 1, 2017	Mar 31, 2017	Nitrate	MCL	Yes	No	12.1 MG/L	10 mg/L	—	Resolved	Mar 31, 2017	Nitrate Rule
Jan 1, 2016	Dec 31, 2016	Nitrate	MCL	Yes	No	11.2 MG/L	10 mg/L	—	Resolved	Dec 31, 2016	Nitrate Rule
Jan 1, 2016	Mar 31, 2016	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Mar 31, 2016	Nitrate Rule
Jan 1, 2016	Mar 31, 2016	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Mar 31, 2016	Nitrate Rule
Jan 1, 2016	Jan 31, 2016	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jan 31, 2016	Total Coliform Rule
Jan 1, 2016	Dec 31, 2016	Nitrate	MCL	Yes	No	10.9 MG/L	10 mg/L	—	Resolved	Dec 31, 2016	Nitrate Rule
Jan 1, 2016	Dec 31, 2016	Nitrate	MCL	Yes	No	10.9 MG/L	10 mg/L	—	Resolved	Dec 31, 2016	Nitrate Rule
Jan 1, 2016	Dec 31, 2016	Nitrate	MCL	Yes	No	11.2 MG/L	10 mg/L	—	Resolved	Dec 31, 2016	Nitrate Rule
Jan 1, 2016	Dec 31, 2016	Nitrate	MCL	Yes	No	11 MG/L	10 mg/L	—	Resolved	Dec 31, 2016	Nitrate Rule
Jan 1, 2016	Dec 31, 2016	Nitrate	MCL	Yes	No	11 MG/L	10 mg/L	—	Resolved	Dec 31, 2016	Nitrate Rule
Oct 1, 2015	Oct 31, 2015	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Oct 31, 2015	Total Coliform Rule
Oct 1, 2015	Dec 31, 2015	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2015	Nitrate Rule
Oct 1, 2015	Dec 31, 2015	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2015	Nitrate Rule
Jun 1, 2015	Jun 30, 2015	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Jun 30, 2015	Total Coliform Rule
Apr 1, 2015	Jun 30, 2015	Nitrate	MCL	Yes	No	11.8 MG/L	10 mg/L	—	Resolved	Jun 30, 2015	Nitrate Rule
Apr 1, 2015	Jun 30, 2015	Nitrate	MCL	Yes	No	11.8 MG/L	10 mg/L	—	Resolved	Jun 30, 2015	Nitrate Rule
Jan 1, 2015	Mar 31, 2015	Nitrate	MCL	Yes	No	10.8 MG/L	10 mg/L	—	Resolved	Mar 31, 2015	Nitrate Rule
Jan 1, 2015	Dec 31, 2015	Nitrate	MCL	Yes	No	10.6 MG/L	10 mg/L	—	Resolved	Dec 31, 2015	Nitrate Rule
Jan 1, 2015	Dec 31, 2015	Nitrate	MCL	Yes	No	10.6 MG/L	10 mg/L	—	Resolved	Dec 31, 2015	Nitrate Rule
Jan 1, 2015	Mar 31, 2015	Nitrate	MCL	Yes	No	10.8 MG/L	10 mg/L	—	Resolved	Mar 31, 2015	Nitrate Rule
Apr 1, 2014	Jun 30, 2014	Nitrate	MCL	Yes	No	10.5 MG/L	10 mg/L	—	Resolved	Jun 30, 2014	Nitrate Rule
Apr 1, 2014	Jun 30, 2014	Nitrate	MCL	Yes	No	10.5 MG/L	10 mg/L	—	Resolved	Jun 30, 2014	Nitrate Rule
Apr 1, 2014	Jun 30, 2014	Nitrate	MCL	Yes	No	11.2 MG/L	10 mg/L	—	Resolved	Jun 30, 2014	Nitrate Rule
Apr 1, 2014	Jun 30, 2014	Nitrate	MCL	Yes	No	11.2 MG/L	10 mg/L	—	Resolved	Jun 30, 2014	Nitrate Rule
Jan 1, 2014	Dec 31, 2014	Nitrate	MCL	Yes	No	10.7 MG/L	10 mg/L	—	Resolved	Dec 31, 2014	Nitrate Rule
Jan 1, 2014	Dec 31, 2014	Nitrate	MCL	Yes	No	10.7 MG/L	10 mg/L	—	Resolved	Dec 31, 2014	Nitrate Rule
Jan 1, 2014	Mar 31, 2014	Nitrate	MCL	Yes	No	12.2 MG/L	10 mg/L	—	Resolved	Mar 31, 2014	Nitrate Rule
Jan 1, 2014	Mar 31, 2014	Nitrate	MCL	Yes	No	12.2 MG/L	10 mg/L	—	Resolved	Mar 31, 2014	Nitrate Rule
Oct 1, 2013	Oct 31, 2013	Coliform (TCR)	MR	No	No	—	5% of samples	—	Resolved	Oct 31, 2013	Total Coliform Rule
Jan 1, 2013	Dec 31, 2013	Nitrate	MCL	Yes	No	10.8 MG/L	10 mg/L	—	Resolved	Dec 31, 2013	Nitrate Rule
Jan 1, 2013	Dec 31, 2013	Nitrate	MCL	Yes	No	10.8 MG/L	10 mg/L	—	Resolved	Dec 31, 2013	Nitrate Rule
Jan 1, 2013	Dec 31, 2013	Nitrate	MCL	Yes	No	10.8 MG/L	10 mg/L	—	Resolved	Dec 31, 2013	Nitrate Rule
Jan 1, 2013	Dec 31, 2013	Nitrate	MCL	Yes	No	10.4 MG/L	10 mg/L	—	Resolved	Dec 31, 2013	Nitrate Rule
Jan 1, 2013	Dec 31, 2013	Nitrate	MCL	Yes	No	10.4 MG/L	10 mg/L	—	Resolved	Dec 31, 2013	Nitrate Rule
Jan 1, 2013	Dec 31, 2013	Nitrate	MCL	Yes	No	10.9 MG/L	10 mg/L	—	Resolved	Dec 31, 2013	Nitrate Rule
Jan 1, 2013	Dec 31, 2013	Nitrate	MCL	Yes	No	10.9 MG/L	10 mg/L	—	Resolved	Dec 31, 2013	Nitrate Rule
Jan 1, 2013	Dec 31, 2013	Nitrate	MCL	Yes	No	10.9 MG/L	10 mg/L	—	Resolved	Dec 31, 2013	Nitrate Rule
Jan 1, 2013	Dec 31, 2013	Nitrate	MCL	Yes	No	10.8 MG/L	10 mg/L	—	Resolved	Dec 31, 2013	Nitrate Rule
Jan 1, 2013	Dec 31, 2013	Nitrate	MCL	Yes	No	10.8 MG/L	10 mg/L	—	Resolved	Dec 31, 2013	Nitrate Rule
Jan 1, 2012	Dec 31, 2012	Nitrate	MCL	Yes	No	10.4 MG/L	10 mg/L	—	Resolved	Dec 31, 2012	Nitrate Rule
Jan 1, 2012	Dec 31, 2012	Nitrate	MCL	Yes	No	10.4 MG/L	10 mg/L	—	Resolved	Dec 31, 2012	Nitrate Rule
Jan 1, 2012	Dec 31, 2012	Nitrate	MCL	Yes	No	10.4 MG/L	10 mg/L	—	Resolved	Dec 31, 2012	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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