RAVENSDALE WATER SUPPLY

Washington — Community Water System — PWSID: WA5371400

System Information

PWSID	WA5371400
System Name	RAVENSDALE WATER SUPPLY
System Type	Community Water System
Water Source	Surface Water Purchased
Activity Status	Active
Owner Type	Private
EPA Region	10
Serves School	No
Wholesaler	No
First Reported	Feb 7, 1981
Last Reported	Dec 11, 2025

Location & Contact

State	Washington
City	Renton
ZIP Code	98058
Address	15709 143rd Ave SE
Organization	RAVENSDALE WATER SUPPLY
Phone	—

Population & Service

Population Served	389
Service Connections	31

Drinking Water Violations (48)

This water system has 48 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	—	Consumer Confidence Rule	Other	No	No	—	—	—	Resolved	Sep 25, 2025	Consumer Confidence Rule
Jul 1, 2022	Jul 31, 2022	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Jul 31, 2022	Revised Total Coliform Rule
Jan 1, 2005	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2005	Lead and Copper Rule
Jan 1, 2005	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2005	Lead and Copper Rule
Jan 1, 2005	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2005	Lead and Copper Rule
Jan 1, 2005	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2005	Lead and Copper Rule
Jan 1, 2005	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2005	Lead and Copper Rule
Jan 1, 2005	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2005	Lead and Copper Rule
Jan 1, 2005	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2005	Lead and Copper Rule
Jan 1, 2005	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2005	Lead and Copper Rule
Jan 1, 2005	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2005	Lead and Copper Rule
Jan 1, 2005	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2005	Lead and Copper Rule
Jan 1, 2005	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2005	Lead and Copper Rule
Jan 1, 2005	—	Lead and Copper Rule	MR	No	No	—	TT	—	Resolved	Dec 31, 2005	Lead and Copper Rule
Sep 1, 2000	Sep 30, 2000	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Sep 30, 2000	Total Coliform Rule
Oct 1, 1997	Oct 31, 1997	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Oct 31, 1997	Total Coliform Rule
Nov 1, 1996	Nov 30, 1996	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Nov 30, 1996	Total Coliform Rule
Jan 1, 1994	Jan 31, 1994	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Jan 31, 1994	Total Coliform Rule
Jul 1, 1993	Jul 31, 1993	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Jul 31, 1993	Total Coliform Rule
Jun 1, 1992	Jun 30, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Jun 30, 1992	Total Coliform Rule
Jun 1, 1992	Jun 30, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Jun 30, 1992	Total Coliform Rule
May 1, 1992	May 31, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	May 31, 1992	Total Coliform Rule
May 1, 1992	May 31, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	May 31, 1992	Total Coliform Rule
Apr 1, 1992	Apr 30, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Apr 30, 1992	Total Coliform Rule
Apr 1, 1992	Apr 30, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Apr 30, 1992	Total Coliform Rule
Mar 1, 1992	Mar 31, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Mar 31, 1992	Total Coliform Rule
Mar 1, 1992	Mar 31, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Mar 31, 1992	Total Coliform Rule
Mar 1, 1992	Mar 31, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Mar 31, 1992	Total Coliform Rule
Feb 1, 1992	Feb 29, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Feb 29, 1992	Total Coliform Rule
Feb 1, 1992	Feb 29, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Feb 29, 1992	Total Coliform Rule
Jan 1, 1992	Jan 31, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Jan 31, 1992	Total Coliform Rule
Jan 1, 1992	Jan 31, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Jan 31, 1992	Total Coliform Rule
Jan 1, 1992	Jan 31, 1992	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Jan 31, 1992	Total Coliform Rule
Dec 1, 1991	Dec 31, 1991	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Dec 31, 1991	Total Coliform Rule
Dec 1, 1991	Dec 31, 1991	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Dec 31, 1991	Total Coliform Rule
Nov 1, 1991	Nov 30, 1991	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Nov 30, 1991	Total Coliform Rule
Nov 1, 1991	Nov 30, 1991	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Nov 30, 1991	Total Coliform Rule
Oct 1, 1991	Oct 31, 1991	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Oct 31, 1991	Total Coliform Rule
Oct 1, 1991	Oct 31, 1991	Coliform (TCR)	MR	No	Yes	—	5% of samples	—	Archived	Oct 31, 1991	Total Coliform Rule
Oct 1, 1979	Oct 31, 1979	Selenium	MR	No	No	—	0.05 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	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	Arsenic	MR	No	No	—	0.010 mg/L	—	Archived	Oct 31, 1979	Arsenic 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	Chromium	MR	No	No	—	0.1 mg/L	—	Archived	Oct 31, 1979	Inorganic Chemicals
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	Mercury	MR	No	No	—	0.002 mg/L	—	Archived	Oct 31, 1979	Inorganic Chemicals
Oct 1, 1979	Oct 31, 1979	Cadmium	MR	No	No	—	0.005 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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