Drinking Water Compliance OS

WEST YELLOWSTONE, MT · Gallatin County

HEBGEN LAKE ESTATES CO WATER SEWER DISTR 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 Montana’s official records. Always confirm current status with Montana before making decisions based on this information.

System facts

System ID (PWSID)
MT0001983
System type
Community Water System
Population served
230
Service connections
94
Ownership
local government
Water source
groundwater (wells)

Violation history

  • Lead Consumer Notice

    Lead and Copper Rule

    December 30, 2024 – February 4, 2025

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    July 1, 2022 – August 14, 2022

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    July 1, 2022 – August 14, 2022

    Resolved
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    October 1, 2016 – October 24, 2016

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    April 1, 2016 – April 30, 2016

    Resolved
  • Monitoring, Regular

    Benzo(a)pyrene

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    HEXACHLOROBENZENE

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    2,4-D

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Heptachlor epoxide

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Heptachlor

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    LASSO

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Atrazine

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Aldicarb

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Carbofuran

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Aldicarb sulfone

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Aldicarb sulfoxide

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Dinoseb

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Picloram

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Simazine

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    OXAMYL

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) adipate

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Dalapon

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Toxaphene

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Methoxychlor

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Endrin

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    BHC-GAMMA

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Chlordane

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    April 1, 2013 – May 28, 2013

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    HEXACHLOROBENZENE

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    2,4-D

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Heptachlor epoxide

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Heptachlor

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    LASSO

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Atrazine

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Aldicarb

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Carbofuran

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Aldicarb sulfone

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Aldicarb sulfoxide

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Dinoseb

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Picloram

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Simazine

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    OXAMYL

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) adipate

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Dalapon

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Toxaphene

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Methoxychlor

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    BHC-GAMMA

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Endrin

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Chlordane

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Benzo(a)pyrene

    January 1, 2013 – March 31, 2013

    Resolved
  • Monitoring, Regular

    Aldicarb

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Dalapon

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Toxaphene

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Methoxychlor

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    BHC-GAMMA

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Endrin

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Chlordane

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Benzo(a)pyrene

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    HEXACHLOROBENZENE

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    2,4-D

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Heptachlor epoxide

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Heptachlor

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Atrazine

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Aldicarb sulfone

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Toluene

    October 1, 2012 – December 26, 2012

    Resolved
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Dinoseb

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Picloram

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    OXAMYL

    October 1, 2012 – December 31, 2012

    Resolved
  • Monitoring, Regular

    Dalapon

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Endrin

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    BHC-GAMMA

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Methoxychlor

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Toxaphene

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) adipate

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    OXAMYL

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Simazine

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Picloram

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Dinoseb

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Aldicarb sulfoxide

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Aldicarb sulfone

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Carbofuran

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Aldicarb

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Atrazine

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    LASSO

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Heptachlor

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Heptachlor epoxide

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    2,4-D

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    HEXACHLOROBENZENE

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Benzo(a)pyrene

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Chlordane

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    July 1, 2012 – September 25, 2012

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    April 1, 2012 – April 11, 2012

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Chlordane

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Benzo(a)pyrene

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    HEXACHLOROBENZENE

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    2,4-D

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Heptachlor epoxide

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Heptachlor

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    LASSO

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Atrazine

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Aldicarb

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Carbofuran

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Aldicarb sulfone

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Aldicarb sulfoxide

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Dinoseb

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Picloram

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Simazine

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    OXAMYL

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) adipate

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Dalapon

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Toxaphene

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Methoxychlor

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    BHC-GAMMA

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    Endrin

    April 1, 2012 – June 30, 2012

    Resolved
  • Monitoring, Regular

    LASSO

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Chlordane

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Benzo(a)pyrene

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    HEXACHLOROBENZENE

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    2,4,5-TP

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    2,4-D

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Heptachlor epoxide

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Heptachlor

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Atrazine

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Aldicarb

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Carbofuran

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Aldicarb sulfone

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Aldicarb sulfoxide

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Dinoseb

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Picloram

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Simazine

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    OXAMYL

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Di(2-ethylhexyl) adipate

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Dalapon

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Toxaphene

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Methoxychlor

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    BHC-GAMMA

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Endrin

    January 1, 2012 – March 31, 2012

    Resolved
  • Monitoring, Regular

    Nitrate-Nitrite

    January 1, 2011 – December 31, 2011

    Resolved
  • Monitoring, Regular

    Nitrate-Nitrite

    January 1, 2010 – December 27, 2010

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    July 1, 2009 – July 31, 2009

    Resolved
  • Monitoring, Regular

    Benzo(a)pyrene

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    HEXACHLOROBENZENE

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    2,4,5-TP

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    2,4-D

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Heptachlor epoxide

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Heptachlor

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    LASSO

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Atrazine

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Thallium, Total

    January 1, 2008 – December 14, 2010

    Resolved
  • Monitoring, Regular

    Carbofuran

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Aldicarb sulfone

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Aldicarb sulfoxide

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Hexachlorocyclopentadiene

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Dinoseb

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Picloram

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Di(2-ethylhexyl) phthalate

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Simazine

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    OXAMYL

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Di(2-ethylhexyl) adipate

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Aldicarb

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Chlordane

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Pentachlorophenol

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Chromium

    January 1, 2008 – December 14, 2010

    Resolved
  • Monitoring, Regular

    Fluoride

    January 1, 2008 – December 14, 2010

    Resolved
  • Monitoring, Regular

    Mercury

    January 1, 2008 – December 14, 2010

    Resolved
  • Monitoring, Regular

    Nickel

    January 1, 2008 – December 14, 2010

    Resolved
  • Monitoring, Regular

    Antimony, Total

    January 1, 2008 – December 14, 2010

    Resolved
  • Monitoring, Regular

    Dalapon

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Toxaphene

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Methoxychlor

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    BHC-GAMMA

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Endrin

    January 1, 2008 – December 31, 2010

    Archived
  • Monitoring, Regular

    Selenium

    January 1, 2008 – December 14, 2010

    Resolved
  • Monitoring, Regular

    Beryllium, Total

    January 1, 2008 – December 14, 2010

    Resolved
  • Monitoring, Regular

    Barium

    January 1, 2008 – December 14, 2010

    Resolved
  • Monitoring, Regular

    Cadmium

    January 1, 2008 – December 14, 2010

    Resolved
  • Initial Tap Sampling for Pb and Cu

    Lead and Copper Rule

    July 1, 1999 – August 20, 2002

    Resolved
  • Monitoring, Regular

    Selenium

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Beryllium, Total

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Antimony, Total

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Chromium

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Thallium, Total

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Barium

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Mercury

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Nickel

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Regular

    Cadmium

    January 1, 1999 – December 31, 2001

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    December 1, 1993 – December 31, 1993

    Resolved

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

Enforcement actions

Contact

JOHNSON, GREG

406-640-1664

WEST YELLOWSTONE, MT 59758