Moses Lake, WA · Grant County

GROVE TERRACE MHP TWO LLC Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Washington’s official records. Always confirm current status with Washington before making decisions based on this information.

System facts

System ID (PWSID): WA5308520
System type: Community Water System
Population served: 220
Service connections: 86
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Nitrate
October 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Nitrate
October 1, 2024 – December 31, 2024
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2022 – August 26, 2022
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
Carbon tetrachloride
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
Styrene
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
Ethylbenzene
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
Toluene
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
Benzene
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
Tetrachloroethylene
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
CHLOROBENZENE
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 2017 – September 30, 2017
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Endrin
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Simazine
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
LASSO
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Tetrachloroethylene
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
CHLOROBENZENE
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Benzene
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Toluene
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Ethylbenzene
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Styrene
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Trichloroethylene
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Carbon tetrachloride
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Vinyl chloride
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
October 1, 2016 – December 31, 2016
Resolved
Monitoring, Regular
—
Nitrate
July 1, 2014 – September 30, 2014
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – October 7, 2013
Resolved
Monitoring, Regular
—
Nitrate
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Diquat
January 1, 2005 – December 31, 2007
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
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
—
1,1,1-Trichloroethane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
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
—
Toluene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Styrene
January 1, 2002 – December 31, 2004
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1997 – July 31, 1997
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1992 – December 31, 1992
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1992 – June 30, 1992
Archived
Monitoring, Regular
—
Cadmium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Chromium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Fluoride
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Nitrate
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Selenium
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Mercury
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Arsenic
October 1, 1979 – October 31, 1979
Archived
Monitoring, Regular
—
Barium
October 1, 1979 – October 31, 1979
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
October 1, 2024 – December 31, 2024	Monitoring, Regular	Nitrate	—	Resolved
October 1, 2024 – December 31, 2024	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2022 – August 26, 2022	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	Carbon tetrachloride	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	Vinyl chloride	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	Styrene	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	Ethylbenzene	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	Toluene	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	Benzene	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	Tetrachloroethylene	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	CHLOROBENZENE	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Endrin	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Simazine	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	LASSO	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Chlordane	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Tetrachloroethylene	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	CHLOROBENZENE	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Benzene	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Toluene	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Styrene	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Trichloroethylene	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Carbon tetrachloride	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Vinyl chloride	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
July 1, 2014 – September 30, 2014	Monitoring, Regular	Nitrate	—	Resolved
July 1, 2013 – October 7, 2013	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Diquat	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	cis-1,2-Dichloroethylene	—	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	1,1,1-Trichloroethane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2,4-Trichlorobenzene	—	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	Toluene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Styrene	—	Resolved
July 1, 1997 – July 31, 1997	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
December 1, 1992 – December 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
June 1, 1992 – June 30, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Cadmium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Chromium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Fluoride	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Nitrate	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Selenium	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Mercury	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Arsenic	—	Archived
October 1, 1979 – October 31, 1979	Monitoring, Regular	Barium	—	Archived

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

Enforcement actions

March 11, 2025State Compliance achieved1 linked violation
March 11, 2025State Compliance achieved1 linked violation
June 26, 2023State Compliance achieved20 linked violations
August 26, 2022State Compliance achieved1 linked violation
August 24, 2020State Compliance achieved15 linked violations
January 1, 2017State Compliance achieved20 linked violations
November 13, 2014State Compliance achieved1 linked violation
October 7, 2013State Compliance achieved1 linked violation
January 1, 2007State Compliance achieved7 linked violations
September 24, 1993Federal issued Formal Notice of Violation6 linked violations

Contact

GROVE TERRACE MHP TWO LLC

Phone not on record

Moses Lake, WA 98837