Is TEN MILE AND PLEASANT VALLEY WUA required to publish a Consumer Confidence Report?

Yes. TEN MILE AND PLEASANT VALLEY WUA 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 TEN MILE AND PLEASANT VALLEY WUA’s next Consumer Confidence Report due?

TEN MILE AND PLEASANT VALLEY WUA’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.

HELENA, MT · Lewis and Clark County

TEN MILE AND PLEASANT VALLEY WUA Water System

Consumer Confidence Report status

TEN MILE AND PLEASANT VALLEY WUA 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 1 item for TEN MILE AND PLEASANT VALLEY WUA that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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

System facts

System ID (PWSID): MT0002005
System type: Community Water System
Population served: 750
Service connections: 310
Ownership: privately owned
Water source: groundwater (wells)

TEN MILE AND PLEASANT VALLEY WUA is one of 123 community water systems in Montana in the 501 to 3,300 people size category, serving 750 people from groundwater.

As of August 1, 2026, its federal record holds 131 entries between 2002 and 2026, of which 1 remains open; none are health-based.

Of the 131, 123 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 volatile organic chemicals, synthetic organic chemicals, and inorganic chemicals.

Violation history

Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2026
Unaddressed
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
April 1, 2024 – June 26, 2024
Resolved
OCCT/SOWT Study/Recommendation
Health-based
Lead and Copper Rule
April 1, 2024 – June 26, 2024
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2023 – October 13, 2023
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023 – February 12, 2024
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2022 – July 11, 2022
Resolved
Monitoring, Regular
—
Tetrachloroethylene
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Trichloroethylene
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Carbon tetrachloride
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Vinyl chloride
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Xylenes, Total
July 1, 2021 – September 30, 2021
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2021 – July 19, 2021
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Styrene
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Ethylbenzene
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Toluene
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
Benzene
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Regular
—
CHLOROBENZENE
July 1, 2021 – September 30, 2021
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
June 1, 2021 – June 30, 2021
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
September 1, 2014 – August 31, 2015
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2014 – July 18, 2014
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
May 13, 2014 – April 7, 2016
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 2014 – May 31, 2014
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
October 1, 2011 – October 31, 2011
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
September 1, 2011 – November 18, 2011
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
September 1, 2011 – November 18, 2011
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2011 – August 8, 2011
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Benzene
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Toluene
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Styrene
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Picloram
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Barium
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Chromium
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Mercury
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Nickel
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
Selenium
January 1, 2011 – December 12, 2013
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2011 – December 12, 2013
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2008 – August 25, 2009
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2006 – December 31, 2006
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2006 – June 30, 2006
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 2005 – June 25, 2007
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2005 – June 30, 2005
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2005 – December 31, 2007
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2004 – December 31, 2004
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2004 – December 31, 2004
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2004 – December 31, 2004
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2003 – June 30, 2003
Resolved
Monitoring, Regular
—
Endrin
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Selenium
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Nickel
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Mercury
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Xylenes, Total
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
—
Carbon tetrachloride
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
—
CHLOROBENZENE
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Toluene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Styrene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Barium
January 1, 2002 – December 31, 2004
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2002 – June 30, 2002
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
LASSO
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Aldicarb
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Aldicarb sulfone
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Picloram
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2002 – December 31, 2004
Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2026	Lead Consumer Notice	Lead and Copper Rule	—	Unaddressed
April 1, 2024 – June 26, 2024	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
April 1, 2024 – June 26, 2024	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Health-based	Resolved
October 1, 2023 – October 13, 2023	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2023 – February 12, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2022 – July 11, 2022	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Tetrachloroethylene	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Trichloroethylene	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Carbon tetrachloride	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Vinyl chloride	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Xylenes, Total	—	Resolved
July 1, 2021 – July 19, 2021	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Styrene	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Ethylbenzene	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Toluene	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	Benzene	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring, Regular	CHLOROBENZENE	—	Resolved
June 1, 2021 – June 30, 2021	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
September 1, 2014 – August 31, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2014 – July 18, 2014	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
May 13, 2014 – April 7, 2016	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
May 1, 2014 – May 31, 2014	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2011 – October 31, 2011	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
September 1, 2011 – November 18, 2011	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
September 1, 2011 – November 18, 2011	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
July 1, 2011 – August 8, 2011	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Benzene	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Toluene	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Styrene	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Picloram	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Barium	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Chromium	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Mercury	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Nickel	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	Selenium	—	Resolved
January 1, 2011 – December 12, 2013	Monitoring, Regular	2,4,5-TP	—	Resolved
October 1, 2008 – August 25, 2009	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2006 – December 31, 2006	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2006 – June 30, 2006	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
July 1, 2005 – June 25, 2007	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 2005 – June 30, 2005	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2005 – December 31, 2007	Monitoring, Regular	Thallium, Total	—	Resolved
July 1, 2004 – December 31, 2004	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2003 – June 30, 2003	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Endrin	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Selenium	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Nickel	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Mercury	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Xylenes, Total	—	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	Carbon tetrachloride	—	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	CHLOROBENZENE	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Toluene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Styrene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Barium	—	Resolved
January 1, 2002 – June 30, 2002	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	LASSO	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Aldicarb	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Aldicarb sulfone	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Picloram	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	BHC-GAMMA	—	Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Enforcement actions

January 14, 2026State Violation/Reminder Notice6 linked violations
June 26, 2024State Compliance achieved1 linked violation
June 26, 2024State Compliance achieved1 linked violation
April 18, 2024State Violation/Reminder Notice1 linked violation
April 18, 2024State Public Notification requested1 linked violation
February 12, 2024State Compliance achieved1 linked violation
October 13, 2023State Compliance achieved1 linked violation
October 13, 2023State Violation/Reminder Notice1 linked violation
July 11, 2023State Violation/Reminder Notice1 linked violation
July 11, 2022State Compliance achieved1 linked violation
July 11, 2022State Violation/Reminder Notice1 linked violation
October 14, 2021State Violation/Reminder Notice21 linked violations
October 14, 2021State Public Notification requested21 linked violations
October 8, 2021State Compliance achieved21 linked violations
August 5, 2021State Compliance achieved1 linked violation
July 19, 2021State Compliance achieved1 linked violation
July 19, 2021State Violation/Reminder Notice1 linked violation
July 16, 2021State Violation/Reminder Notice1 linked violation
July 16, 2021State Public Notification requested1 linked violation
August 8, 2016State Compliance achieved2 linked violations
April 7, 2016State Compliance achieved1 linked violation
October 19, 2015State Violation/Reminder Notice2 linked violations
October 19, 2015State Public Notification requested2 linked violations
July 18, 2014State Compliance achieved4 linked violations
June 19, 2014State Violation/Reminder Notice4 linked violations
June 19, 2014State Public Notification requested4 linked violations
May 19, 2014State Public Notification received4 linked violations
January 24, 2014State Public Notification requested17 linked violations
January 24, 2014State Public Notification requested27 linked violations
January 24, 2014State Violation/Reminder Notice27 linked violations
December 12, 2013State Compliance achieved40 linked violations
December 12, 2013State Compliance achieved4 linked violations
November 28, 2011State Public Notification requested2 linked violations
November 18, 2011State Compliance achieved3 linked violations
November 18, 2011State Compliance achieved2 linked violations
November 14, 2011State Public Notification requested2 linked violations
November 14, 2011State Public Notification requested2 linked violations
November 14, 2011State Violation/Reminder Notice2 linked violations
August 1, 2011State Public Notification requested3 linked violations
August 5, 2008State Violation/Reminder Notice4 linked violations
July 16, 2007State Compliance achieved14 linked violations
July 6, 2005State Compliance achieved63 linked violations
April 15, 2005State Violation/Reminder Notice37 linked violations
April 15, 2005State Public Notification requested24 linked violations
January 3, 2005State Violation/Reminder Notice1 linked violation
January 3, 2005State Public Notification requested7 linked violations
January 3, 2005State Public Notification requested5 linked violations
January 3, 2005State Violation/Reminder Notice3 linked violations
January 3, 2005State Violation/Reminder Notice3 linked violations
January 3, 2005State Public Notification requested6 linked violations
January 3, 2005State Public Notification requested3 linked violations

Common questions

Is TEN MILE AND PLEASANT VALLEY WUA required to publish a Consumer Confidence Report?: Yes. TEN MILE AND PLEASANT VALLEY WUA 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 TEN MILE AND PLEASANT VALLEY WUA’s next Consumer Confidence Report due?: TEN MILE AND PLEASANT VALLEY WUA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does TEN MILE AND PLEASANT VALLEY WUA have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 1 item for TEN MILE AND PLEASANT VALLEY WUA that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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

PARKER, JO

406-442-3939

HELENA, MT 59604