EL DORADO HILLS, OR · Linn County

FOSTER LAKE MOBILE RV COMMUNITY Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of March 23, 2011. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Linn County, OR.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Oregon’s official records. Always confirm current status with Oregon before making decisions based on this information.

System facts

System ID (PWSID): OR4100309
System type: Community Water System
Population served: 50
Service connections: 36
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

FOSTER LAKE MOBILE RV COMMUNITY is one of 1,168 community water systems in Oregon in the 500 or fewer people size category, formerly serving 50 people from surface water.

EPA's federal records list this system as inactive in 2011; the record below is historical.

As of August 1, 2026, its federal record holds 68 entries between 1976 and 2011, all of which EPA lists as closed. Nothing has been added since 2011.

Of the 68, 59 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules, volatile organic chemicals, and inorganic chemicals.

Violation history

Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2011 – March 23, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2011 – February 28, 2011
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2011 – March 23, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2011 – January 31, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2010 – December 31, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2010 – November 30, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2010 – September 30, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2010 – August 31, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2010 – July 31, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2010 – May 31, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2010 – April 30, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2010 – February 28, 2010
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2010 – December 31, 2010
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2010 – December 31, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2010 – January 31, 2010
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2009 – December 31, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2009 – November 30, 2009
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2009 – October 31, 2009
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2009 – December 31, 2009
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2008 – July 31, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2008 – June 30, 2008
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
March 1, 2008 – March 31, 2008
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
February 1, 2008 – February 29, 2008
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2008 – December 31, 2008
Archived
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
October 1, 2007 – October 31, 2007
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
April 1, 2007 – April 30, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
March 1, 2007 – March 31, 2007
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
February 1, 2007 – February 28, 2007
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
January 1, 2007 – January 31, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 2006 – December 31, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2006 – November 30, 2006
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 19, 2002 – June 23, 2003
Resolved
Monitoring, Regular
—
Glyphosate
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Barium
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Mercury
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Nickel
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Benzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Diquat
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Endothall
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Picloram
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2002 – December 31, 2004
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 19, 2001 – June 23, 2003
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 1994 – November 21, 1994
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 1994 – November 21, 1994
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
June 1, 1976 – May 31, 1980
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 1, 1976 – May 31, 1980
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
March 1, 2011 – March 23, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 2011 – February 28, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2011 – March 23, 2011	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2011 – January 31, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 2010 – December 31, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 2010 – November 30, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 2010 – September 30, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2010 – August 31, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2010 – July 31, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
May 1, 2010 – May 31, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 2010 – April 30, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 2010 – February 28, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2010 – December 31, 2010	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2010 – January 31, 2010	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 2009 – December 31, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 2009 – November 30, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2009 – October 31, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2009 – December 31, 2009	Monitoring, Regular	Nitrate	—	Archived
July 1, 2008 – July 31, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
June 1, 2008 – June 30, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
March 1, 2008 – March 31, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
February 1, 2008 – February 29, 2008	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2008 – December 31, 2008	Monitoring, Regular	Nitrate	—	Archived
October 1, 2007 – October 31, 2007	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2007 – April 30, 2007	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
March 1, 2007 – March 31, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
February 1, 2007 – February 28, 2007	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2007 – January 31, 2007	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 2006 – December 31, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
November 1, 2006 – November 30, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 19, 2002 – June 23, 2003	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Glyphosate	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Barium	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Mercury	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Nickel	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Benzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Diquat	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Endothall	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Picloram	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Atrazine	—	Resolved
October 19, 2001 – June 23, 2003	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 1994 – November 21, 1994	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 1994 – November 21, 1994	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
June 1, 1976 – May 31, 1980	Monitoring, Regular	Combined Radium (-226 and -228)	—	Archived
June 1, 1976 – May 31, 1980	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

March 22, 2012State no longer subject to Rule3 linked violations
March 22, 2012State no longer subject to Rule2 linked violations
March 22, 2012State no longer subject to Rule2 linked violations
April 25, 2011State Violation/Reminder Notice1 linked violation
March 21, 2011State Violation/Reminder Notice1 linked violation
February 22, 2011State Violation/Reminder Notice4 linked violations
January 24, 2011State Violation/Reminder Notice1 linked violation
December 27, 2010State Violation/Reminder Notice1 linked violation
October 26, 2010State Violation/Reminder Notice2 linked violations
September 27, 2010State Violation/Reminder Notice1 linked violation
May 24, 2010State Violation/Reminder Notice2 linked violations
March 22, 2010State Violation/Reminder Notice3 linked violations
January 25, 2010State Violation/Reminder Notice2 linked violations
December 28, 2009State Violation/Reminder Notice2 linked violations
November 23, 2009State Violation/Reminder Notice2 linked violations
December 9, 2005State Compliance achieved1 linked violation
June 9, 2005State Compliance achieved14 linked violations
May 26, 2005State Compliance achieved59 linked violations
June 23, 2003State Compliance achieved1 linked violation
June 23, 2003State Compliance achieved1 linked violation
June 23, 2003State Compliance achieved1 linked violation
June 23, 2003State Compliance achieved1 linked violation
June 23, 2003State Compliance achieved1 linked violation
November 21, 1994State Compliance achieved1 linked violation
November 21, 1994State Compliance achieved1 linked violation
November 4, 1994State Formal Notice of Violation issued1 linked violation

Last known contact on file (system is inactive)

MCCAUGHERN, ROBERT

916-933-1062

EL DORADO HILLS, CA 95762