Is KOOSKOOSKIE CABIN OWNERS INC. required to publish a Consumer Confidence Report?

Yes. KOOSKOOSKIE CABIN OWNERS INC. is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is KOOSKOOSKIE CABIN OWNERS INC.’s next Consumer Confidence Report due?

KOOSKOOSKIE CABIN OWNERS INC.’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Walla Walla, WA · Walla Walla County

KOOSKOOSKIE CABIN OWNERS INC. Water System

Consumer Confidence Report status

KOOSKOOSKIE CABIN OWNERS INC. must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for KOOSKOOSKIE CABIN OWNERS INC..

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 Washington’s official records. Always confirm current status with Washington before making decisions based on this information.

System facts

System ID (PWSID): WA5334751
System type: Community Water System
Population served: 45
Service connections: 32
Ownership: privately owned
Water source: groundwater (wells)

KOOSKOOSKIE CABIN OWNERS INC. is one of 3,227 community water systems in Washington in the 500 or fewer people size category, serving 45 people from groundwater.

As of August 1, 2026, its federal record holds 253 entries between 2000 and 2024, all of which EPA lists as closed.

Of the 253, 252 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 synthetic organic chemicals, volatile organic chemicals, and the Total Coliform Rules.

Violation history

Monitoring, Regular
—
Endrin
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
LASSO
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Simazine
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Toxaphene
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Chlordane
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Heptachlor epoxide
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Heptachlor
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
LASSO
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Atrazine
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Simazine
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Methoxychlor
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
BHC-GAMMA
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
Endrin
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Regular
—
BHC-GAMMA
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Chlordane
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Heptachlor epoxide
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Heptachlor
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
LASSO
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Atrazine
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Simazine
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Endrin
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Toxaphene
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Methoxychlor
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Styrene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Toluene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Benzene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2014 – December 31, 2014
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
1,2,4-Trichlorobenzene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Styrene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Ethylbenzene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Toluene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Benzene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
CHLOROBENZENE
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Tetrachloroethylene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Trichloroethylene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
1,2-Dichloropropane
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Carbon tetrachloride
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
1,2-Dichloroethane
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Vinyl chloride
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
p-Dichlorobenzene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
o-Dichlorobenzene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
DICHLOROMETHANE
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Styrene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Ethylbenzene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Toluene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Benzene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
CHLOROBENZENE
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Tetrachloroethylene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Trichloroethylene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
1,2-Dichloropropane
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Carbon tetrachloride
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
1,2-Dichloroethane
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
trans-1,2-Dichloroethylene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Vinyl chloride
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
p-Dichlorobenzene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
o-Dichlorobenzene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
DICHLOROMETHANE
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
cis-1,2-Dichloroethylene
October 1, 2009 – December 31, 2009
Archived
Monitoring, Regular
—
Styrene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Ethylbenzene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Toluene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Benzene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
CHLOROBENZENE
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Tetrachloroethylene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Trichloroethylene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Carbon tetrachloride
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Vinyl chloride
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
April 1, 2009 – June 30, 2009
Resolved
Monitoring, Regular
—
Aldicarb
January 1, 2008 – March 31, 2008
Archived
Monitoring, Regular
—
OXAMYL
January 1, 2008 – March 31, 2008
Archived
Monitoring, Regular
—
Aldicarb sulfone
January 1, 2008 – March 31, 2008
Archived
Monitoring, Regular
—
Carbofuran
January 1, 2008 – March 31, 2008
Archived
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 2008 – March 31, 2008
Archived
Monitoring, Regular
—
Dalapon
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Chlordane
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Pentachlorophenol
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Benzo(a)pyrene
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
HEXACHLOROBENZENE
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Heptachlor epoxide
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Heptachlor
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
LASSO
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Atrazine
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Hexachlorocyclopentadiene
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Simazine
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Toxaphene
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Methoxychlor
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
BHC-GAMMA
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Endrin
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Aldicarb
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Carbofuran
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Aldicarb sulfone
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
OXAMYL
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Diquat
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Pentachlorophenol
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
2,4,5-TP
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Dinoseb
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Picloram
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Dalapon
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Aldicarb
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Carbofuran
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Aldicarb sulfone
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
OXAMYL
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Diquat
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Regular
—
Chlordane
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Pentachlorophenol
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Benzo(a)pyrene
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
HEXACHLOROBENZENE
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Heptachlor epoxide
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Heptachlor
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
LASSO
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Atrazine
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Hexachlorocyclopentadiene
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Simazine
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Toxaphene
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Methoxychlor
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
BHC-GAMMA
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Endrin
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Pentachlorophenol
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
2,4,5-TP
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Dinoseb
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Picloram
October 1, 2007 – December 31, 2007
Archived
Monitoring, Regular
—
Toxaphene
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Pentachlorophenol
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
2,4,5-TP
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Dinoseb
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Picloram
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Dalapon
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Chlordane
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Pentachlorophenol
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Benzo(a)pyrene
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
HEXACHLOROBENZENE
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Heptachlor epoxide
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Heptachlor
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
LASSO
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Atrazine
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Hexachlorocyclopentadiene
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Simazine
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Toxaphene
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Methoxychlor
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
BHC-GAMMA
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Endrin
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Chlordane
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Pentachlorophenol
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Benzo(a)pyrene
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
HEXACHLOROBENZENE
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Heptachlor epoxide
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Heptachlor
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
LASSO
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Atrazine
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Hexachlorocyclopentadiene
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Simazine
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
ETHYLENE DIBROMIDE
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Pentachlorophenol
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
2,4,5-TP
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Dinoseb
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Picloram
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Dalapon
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Methoxychlor
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
BHC-GAMMA
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Endrin
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
Aldicarb
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Carbofuran
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Aldicarb sulfone
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
OXAMYL
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Diquat
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Diquat
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Aldicarb
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Carbofuran
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Aldicarb sulfone
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
OXAMYL
July 1, 2007 – September 30, 2007
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
July 1, 2007 – September 30, 2007
Archived
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
April 1, 2007 – June 30, 2007
Archived
Monitoring, Regular
—
Diquat
April 1, 2007 – June 30, 2007
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
April 1, 2007 – June 30, 2007
Archived
Monitoring, Regular
—
Diquat
April 1, 2007 – June 30, 2007
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
April 1, 2007 – June 30, 2007
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
April 1, 2007 – June 30, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2000 – August 31, 2000
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
January 1, 2024 – December 31, 2024	Monitoring, Regular	Endrin	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	LASSO	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Simazine	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring, Regular	BHC-GAMMA	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	Toxaphene	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	Chlordane	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	Heptachlor epoxide	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	Heptachlor	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	LASSO	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	Atrazine	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	Simazine	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	Methoxychlor	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	BHC-GAMMA	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	Endrin	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	BHC-GAMMA	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Chlordane	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Heptachlor epoxide	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Heptachlor	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	LASSO	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Atrazine	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Simazine	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Endrin	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Toxaphene	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Styrene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Toluene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Benzene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2014 – December 31, 2014	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	Styrene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	Ethylbenzene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	Toluene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	Benzene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	CHLOROBENZENE	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	Tetrachloroethylene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	Trichloroethylene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,2-Dichloropropane	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	Carbon tetrachloride	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,2-Dichloroethane	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	Vinyl chloride	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	p-Dichlorobenzene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	o-Dichlorobenzene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	DICHLOROMETHANE	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	Styrene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	Ethylbenzene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	Toluene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	Benzene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	CHLOROBENZENE	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	Tetrachloroethylene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	Trichloroethylene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,2-Dichloropropane	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	Carbon tetrachloride	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,2-Dichloroethane	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	Vinyl chloride	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	p-Dichlorobenzene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	o-Dichlorobenzene	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	DICHLOROMETHANE	—	Archived
October 1, 2009 – December 31, 2009	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Archived
April 1, 2009 – June 30, 2009	Monitoring, Regular	Styrene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Ethylbenzene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Toluene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Benzene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	CHLOROBENZENE	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Tetrachloroethylene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Trichloroethylene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Carbon tetrachloride	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	Vinyl chloride	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2008 – March 31, 2008	Monitoring, Regular	Aldicarb	—	Archived
January 1, 2008 – March 31, 2008	Monitoring, Regular	OXAMYL	—	Archived
January 1, 2008 – March 31, 2008	Monitoring, Regular	Aldicarb sulfone	—	Archived
January 1, 2008 – March 31, 2008	Monitoring, Regular	Carbofuran	—	Archived
January 1, 2008 – March 31, 2008	Monitoring, Regular	Aldicarb sulfoxide	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Dalapon	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Chlordane	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Pentachlorophenol	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Benzo(a)pyrene	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	HEXACHLOROBENZENE	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Heptachlor epoxide	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Heptachlor	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	LASSO	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Atrazine	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Hexachlorocyclopentadiene	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Simazine	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Toxaphene	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Methoxychlor	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	BHC-GAMMA	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Endrin	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Aldicarb	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Carbofuran	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Aldicarb sulfone	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	OXAMYL	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Diquat	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Pentachlorophenol	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	2,4,5-TP	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Dinoseb	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Picloram	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Dalapon	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Aldicarb	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Carbofuran	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Aldicarb sulfone	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	OXAMYL	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Diquat	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Chlordane	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Pentachlorophenol	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Benzo(a)pyrene	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	HEXACHLOROBENZENE	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Heptachlor epoxide	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Heptachlor	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	LASSO	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Atrazine	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Hexachlorocyclopentadiene	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Simazine	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Toxaphene	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Methoxychlor	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	BHC-GAMMA	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Endrin	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Pentachlorophenol	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	2,4,5-TP	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Dinoseb	—	Archived
October 1, 2007 – December 31, 2007	Monitoring, Regular	Picloram	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Toxaphene	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Pentachlorophenol	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	2,4,5-TP	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Dinoseb	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Picloram	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Dalapon	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Chlordane	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Pentachlorophenol	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Benzo(a)pyrene	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	HEXACHLOROBENZENE	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Heptachlor epoxide	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Heptachlor	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	LASSO	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Atrazine	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Hexachlorocyclopentadiene	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Simazine	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Toxaphene	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Methoxychlor	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	BHC-GAMMA	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Endrin	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Chlordane	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Pentachlorophenol	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Benzo(a)pyrene	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	HEXACHLOROBENZENE	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Heptachlor epoxide	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Heptachlor	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	LASSO	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Atrazine	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Hexachlorocyclopentadiene	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Simazine	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Pentachlorophenol	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	2,4,5-TP	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Dinoseb	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Picloram	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Dalapon	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Methoxychlor	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	BHC-GAMMA	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Endrin	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	Aldicarb	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Carbofuran	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Aldicarb sulfone	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	OXAMYL	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Diquat	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Diquat	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Aldicarb	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Carbofuran	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Aldicarb sulfone	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	OXAMYL	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Archived
July 1, 2007 – September 30, 2007	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Archived
April 1, 2007 – June 30, 2007	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Archived
April 1, 2007 – June 30, 2007	Monitoring, Regular	Diquat	—	Resolved
April 1, 2007 – June 30, 2007	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Archived
April 1, 2007 – June 30, 2007	Monitoring, Regular	Diquat	—	Resolved
April 1, 2007 – June 30, 2007	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
April 1, 2007 – June 30, 2007	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
August 1, 2000 – August 31, 2000	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived

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

Enforcement actions

April 6, 2026State Compliance achieved15 linked violations
March 24, 2022State Compliance achieved30 linked violations
March 17, 2015State Compliance achieved20 linked violations
August 4, 2009State Compliance achieved40 linked violations
August 4, 2009State Compliance achieved21 linked violations
March 31, 2008State Compliance achieved23 linked violations
January 1, 2008State Compliance achieved67 linked violations
January 1, 2008State Compliance achieved54 linked violations
September 10, 2007State Compliance achieved23 linked violations

Common questions

Is KOOSKOOSKIE CABIN OWNERS INC. required to publish a Consumer Confidence Report?: Yes. KOOSKOOSKIE CABIN OWNERS INC. is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is KOOSKOOSKIE CABIN OWNERS INC.’s next Consumer Confidence Report due?: KOOSKOOSKIE CABIN OWNERS INC.’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does KOOSKOOSKIE CABIN OWNERS INC. have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for KOOSKOOSKIE CABIN OWNERS INC..
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

KOOSKOOSKIE CABIN OWNERS INC.

Phone not on record

Walla Walla, WA 99362