RIVERSIDE SD CENTRAL SITE SCHOOLS

Washington — Non-Transient Non-Community — PWSID: WA5372831

System Information

PWSID	WA5372831
System Name	RIVERSIDE SD CENTRAL SITE SCHOOLS
System Type	Non-Transient Non-Community
Water Source	Ground Water
Activity Status	Active
Owner Type	Local
EPA Region	10
Serves School	Yes
Wholesaler	No
First Reported	Feb 7, 1981
Last Reported	Dec 11, 2025

Location & Contact

State	Washington
City	Chattaroy
ZIP Code	99003
Address	34515 N Newport HWY
Organization	RIVERSIDE SD CENTRAL SITE SCHOOLS
Phone	—

Population & Service

Population Served	1,320
Service Connections	8

Drinking Water Violations (223)

This water system has 223 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
Jun 1, 2019	Jun 30, 2019	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Jun 30, 2019	Revised Total Coliform Rule
Jun 1, 2017	Jun 30, 2017	Revised Total Coliform Rule	MON	No	Yes	—	—	—	Resolved	Jun 30, 2017	Revised Total Coliform Rule
Jan 1, 2008	Dec 31, 2010	Aldicarb	MR	No	Yes	—	—	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	Carbofuran	MR	No	Yes	—	0.04 mg/L	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	Aldicarb sulfoxide	MR	No	Yes	—	—	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	Aldicarb sulfone	MR	No	Yes	—	—	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	Aldicarb sulfoxide	MR	No	Yes	—	—	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	OXAMYL	MR	No	Yes	—	0.2 mg/L	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	Carbofuran	MR	No	Yes	—	0.04 mg/L	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	OXAMYL	MR	No	Yes	—	0.2 mg/L	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	Aldicarb	MR	No	Yes	—	—	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
Jan 1, 2008	Dec 31, 2010	Aldicarb sulfone	MR	No	Yes	—	—	—	Archived	Dec 31, 2010	Synthetic Organic Chemicals
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	Mar 31, 2006	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Mar 31, 2006	Nitrate Rule
Jan 1, 2006	Mar 31, 2006	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Mar 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	Mar 31, 2006	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Mar 31, 2006	Nitrate Rule
Jan 1, 2006	Mar 31, 2006	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Mar 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	Mar 31, 2006	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Mar 31, 2006	Nitrate Rule
Jan 1, 2006	Dec 31, 2006	Nitrate	MR	No	Yes	—	10 mg/L	—	Resolved	Dec 31, 2006	Nitrate Rule
Oct 1, 2004	Dec 31, 2004	Ethylbenzene	MR	No	Yes	—	0.7 mg/L	—	Archived	Dec 31, 2004	Volatile Organic Chemicals
Oct 1, 2004	Dec 31, 2004	1,2-Dichloroethane	MR	No	Yes	—	0.005 mg/L	—	Archived	Dec 31, 2004	Volatile Organic Chemicals
Oct 1, 2004	Dec 31, 2004	Styrene	MR	No	Yes	—	0.1 mg/L	—	Archived	Dec 31, 2004	Volatile Organic Chemicals
Oct 1, 2004	Dec 31, 2004	Tetrachloroethylene	MR	No	Yes	—	0.005 mg/L	—	Archived	Dec 31, 2004	Volatile Organic Chemicals
Oct 1, 2004	Dec 31, 2004	1,1,2-Trichloroethane	MR	No	Yes	—	0.005 mg/L	—	Archived	Dec 31, 2004	Volatile Organic Chemicals
Oct 1, 2004	Dec 31, 2004	Styrene	MR	No	Yes	—	0.1 mg/L	—	Archived	Dec 31, 2004	Volatile Organic Chemicals
Oct 1, 2004	Dec 31, 2004	1,2-Dichloroethane	MR	No	Yes	—	0.005 mg/L	—	Archived	Dec 31, 2004	Volatile Organic Chemicals
Oct 1, 2004	Dec 31, 2004	Toluene	MR	No	Yes	—	1 mg/L	—	Archived	Dec 31, 2004	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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