Public water system record

Town of Manville

Serves Manville, Niobrara County, WY · 97 people served

Federal records show 4 health-based violations and 124 monitoring/reporting issues for Town of Manville in the last ten years. The most serious issue in this window was a Combined Uranium violation that EPA lists as archived, not resolved.

  • WY5600110
  • MANVILLE
  • WY
  • 97 served

System profile

Source water Groundwater
ZIP 82227
EPA system ID WY5600110

Verify this system on EPA ECHO →

Health-based violations, last 10 years
4
Resolved
0
Unresolved
0
Archived by EPA
4
Any acute record
No
Monitoring issues, last 10 years
124

Key facts

  • Town of Manville draws water from 2 wells.
  • Highest measured level in the last 10 years: Combined Uranium, 35 µg/L, federal limit 30 µg/L (1.2 times the limit), 2017.
  • Most recent formal enforcement: compliance order (no penalty) by EPA, April 2021.
  • Record on file since 1976, with 38 health-based violations before October 19, 2016.
  • Lead pipe inventory: 18 lead and 38 unknown out of 88 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Combined Uranium
Contaminant limit exceeded
Measured 31 µg/L, federal limit 30 µg/L (at or just above the limit)
340 Jul 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Uranium
Contaminant limit exceeded
Measured 35 µg/L, federal limit 30 µg/L (1.2 times the limit)
340 Apr 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Uranium
Contaminant limit exceeded
340 Jan 1, 2017 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No
Combined Uranium
Contaminant limit exceeded
Measured 34 µg/L, federal limit 30 µg/L (1.1 times the limit)
340 Oct 1, 2016 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Chlorine
Monitoring and reporting
Jul 1, 2022 Resolved
Lead and Copper Rule
Monitoring and reporting
Sep 29, 2021 Resolved
Lead and Copper Rule
Monitoring and reporting
Jul 1, 2021 Resolved
Lead and Copper Rule
Monitoring and reporting
Apr 1, 2021 Resolved
Consumer Confidence Rule
OTHER
Oct 1, 2020 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2020 Resolved
Endrin
Monitoring and reporting
Jan 1, 2020 Resolved
Carbofuran
Monitoring and reporting
Jan 1, 2020 Resolved
LASSO
Monitoring and reporting
Jan 1, 2020 Resolved
Heptachlor
Monitoring and reporting
Jan 1, 2020 Resolved
Chlordane
Monitoring and reporting
Jan 1, 2020 Resolved
Diquat
Monitoring and reporting
Jan 1, 2020 Resolved
Di(2-ethylhexyl) phthalate
Monitoring and reporting
Jan 1, 2020 Resolved
Benzo(a)pyrene
Monitoring and reporting
Jan 1, 2020 Resolved
Dalapon
Monitoring and reporting
Jan 1, 2020 Resolved
Endothall
Monitoring and reporting
Jan 1, 2020 Resolved
OXAMYL
Monitoring and reporting
Jan 1, 2020 Resolved
HEXACHLOROBENZENE
Monitoring and reporting
Jan 1, 2020 Resolved
Methoxychlor
Monitoring and reporting
Jan 1, 2020 Resolved
Glyphosate
Monitoring and reporting
Jan 1, 2020 Resolved
Di(2-ethylhexyl) adipate
Monitoring and reporting
Jan 1, 2020 Resolved
Picloram
Monitoring and reporting
Jan 1, 2020 Resolved
Hexachlorocyclopentadiene
Monitoring and reporting
Jan 1, 2020 Resolved
Atrazine
Monitoring and reporting
Jan 1, 2020 Resolved
2,4,5-TP
Monitoring and reporting
Jan 1, 2020 Resolved
BHC-GAMMA
Monitoring and reporting
Jan 1, 2020 Resolved
Heptachlor epoxide
Monitoring and reporting
Jan 1, 2020 Resolved
2,4-D
Monitoring and reporting
Jan 1, 2020 Resolved
Pentachlorophenol
Monitoring and reporting
Jan 1, 2020 Resolved
Toxaphene
Monitoring and reporting
Jan 1, 2020 Resolved
Simazine
Monitoring and reporting
Jan 1, 2020 Resolved
Dinoseb
Monitoring and reporting
Jan 1, 2020 Resolved
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
Jan 1, 2020 Resolved
ETHYLENE DIBROMIDE
Monitoring and reporting
Jan 1, 2020 Resolved
Styrene
Monitoring and reporting
Jan 1, 2020 Resolved
Ethylbenzene
Monitoring and reporting
Jan 1, 2020 Resolved
Toluene
Monitoring and reporting
Jan 1, 2020 Resolved
Benzene
Monitoring and reporting
Jan 1, 2020 Resolved
CHLOROBENZENE
Monitoring and reporting
Jan 1, 2020 Resolved
Tetrachloroethylene
Monitoring and reporting
Jan 1, 2020 Resolved
1,1,2-Trichloroethane
Monitoring and reporting
Jan 1, 2020 Resolved
Trichloroethylene
Monitoring and reporting
Jan 1, 2020 Resolved
1,2-Dichloropropane
Monitoring and reporting
Jan 1, 2020 Resolved
Carbon tetrachloride
Monitoring and reporting
Jan 1, 2020 Resolved
1,1,1-Trichloroethane
Monitoring and reporting
Jan 1, 2020 Resolved
1,2-Dichloroethane
Monitoring and reporting
Jan 1, 2020 Resolved
trans-1,2-Dichloroethylene
Monitoring and reporting
Jan 1, 2020 Resolved
1,1-Dichloroethylene
Monitoring and reporting
Jan 1, 2020 Resolved
Vinyl chloride
Monitoring and reporting
Jan 1, 2020 Resolved
p-Dichlorobenzene
Monitoring and reporting
Jan 1, 2020 Resolved
o-Dichlorobenzene
Monitoring and reporting
Jan 1, 2020 Resolved
DICHLOROMETHANE
Monitoring and reporting
Jan 1, 2020 Resolved
Xylenes, Total
Monitoring and reporting
Jan 1, 2020 Resolved
cis-1,2-Dichloroethylene
Monitoring and reporting
Jan 1, 2020 Resolved
1,2,4-Trichlorobenzene
Monitoring and reporting
Jan 1, 2020 Resolved
Chlordane
Monitoring and reporting
Oct 1, 2019 Resolved
ETHYLENE DIBROMIDE
Monitoring and reporting
Oct 1, 2019 Resolved
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
Oct 1, 2019 Resolved
Pentachlorophenol
Monitoring and reporting
Oct 1, 2019 Resolved
Benzo(a)pyrene
Monitoring and reporting
Oct 1, 2019 Resolved
HEXACHLOROBENZENE
Monitoring and reporting
Oct 1, 2019 Resolved
2,4,5-TP
Monitoring and reporting
Oct 1, 2019 Resolved
2,4-D
Monitoring and reporting
Oct 1, 2019 Resolved
Heptachlor epoxide
Monitoring and reporting
Oct 1, 2019 Resolved
Heptachlor
Monitoring and reporting
Oct 1, 2019 Resolved
LASSO
Monitoring and reporting
Oct 1, 2019 Resolved
Atrazine
Monitoring and reporting
Oct 1, 2019 Resolved
Carbofuran
Monitoring and reporting
Oct 1, 2019 Resolved
Hexachlorocyclopentadiene
Monitoring and reporting
Oct 1, 2019 Resolved
Dinoseb
Monitoring and reporting
Oct 1, 2019 Resolved
Picloram
Monitoring and reporting
Oct 1, 2019 Resolved
Di(2-ethylhexyl) phthalate
Monitoring and reporting
Oct 1, 2019 Resolved
Simazine
Monitoring and reporting
Oct 1, 2019 Resolved
OXAMYL
Monitoring and reporting
Oct 1, 2019 Resolved
Di(2-ethylhexyl) adipate
Monitoring and reporting
Oct 1, 2019 Resolved
Glyphosate
Monitoring and reporting
Oct 1, 2019 Resolved
Endothall
Monitoring and reporting
Oct 1, 2019 Resolved
Diquat
Monitoring and reporting
Oct 1, 2019 Resolved
Dalapon
Monitoring and reporting
Oct 1, 2019 Resolved
Toxaphene
Monitoring and reporting
Oct 1, 2019 Resolved
Methoxychlor
Monitoring and reporting
Oct 1, 2019 Resolved
BHC-GAMMA
Monitoring and reporting
Oct 1, 2019 Resolved
Endrin
Monitoring and reporting
Oct 1, 2019 Resolved
Styrene
Monitoring and reporting
Oct 1, 2019 Resolved
Ethylbenzene
Monitoring and reporting
Oct 1, 2019 Resolved
Toluene
Monitoring and reporting
Oct 1, 2019 Resolved
Benzene
Monitoring and reporting
Oct 1, 2019 Resolved
CHLOROBENZENE
Monitoring and reporting
Oct 1, 2019 Resolved
Tetrachloroethylene
Monitoring and reporting
Oct 1, 2019 Resolved
1,1,2-Trichloroethane
Monitoring and reporting
Oct 1, 2019 Resolved
Trichloroethylene
Monitoring and reporting
Oct 1, 2019 Resolved
1,2-Dichloropropane
Monitoring and reporting
Oct 1, 2019 Resolved
Carbon tetrachloride
Monitoring and reporting
Oct 1, 2019 Resolved
1,1,1-Trichloroethane
Monitoring and reporting
Oct 1, 2019 Resolved
1,2-Dichloroethane
Monitoring and reporting
Oct 1, 2019 Resolved
trans-1,2-Dichloroethylene
Monitoring and reporting
Oct 1, 2019 Resolved
1,1-Dichloroethylene
Monitoring and reporting
Oct 1, 2019 Resolved
Vinyl chloride
Monitoring and reporting
Oct 1, 2019 Resolved
p-Dichlorobenzene
Monitoring and reporting
Oct 1, 2019 Resolved
o-Dichlorobenzene
Monitoring and reporting
Oct 1, 2019 Resolved
DICHLOROMETHANE
Monitoring and reporting
Oct 1, 2019 Resolved
Xylenes, Total
Monitoring and reporting
Oct 1, 2019 Resolved
cis-1,2-Dichloroethylene
Monitoring and reporting
Oct 1, 2019 Resolved
1,2,4-Trichlorobenzene
Monitoring and reporting
Oct 1, 2019 Resolved
Radium-228
Monitoring and reporting
Oct 1, 2019 Resolved
Radium-226
Monitoring and reporting
Oct 1, 2019 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Oct 1, 2019 Resolved
Combined Uranium
Monitoring and reporting
Oct 1, 2019 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Oct 1, 2019 Resolved
Radium-228
Monitoring and reporting
Jul 1, 2019 Resolved
Radium-226
Monitoring and reporting
Jul 1, 2019 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Jul 1, 2019 Resolved
Combined Uranium
Monitoring and reporting
Jul 1, 2019 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Jul 1, 2019 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2019 Resolved
Radium-228
Monitoring and reporting
Apr 1, 2019 Resolved
Radium-226
Monitoring and reporting
Apr 1, 2019 Resolved
Combined Radium (-226 and -228)
Monitoring and reporting
Apr 1, 2019 Resolved
Combined Uranium
Monitoring and reporting
Apr 1, 2019 Resolved
Gross Alpha, Excl. Radon and U
Monitoring and reporting
Apr 1, 2019 Resolved
Consumer Confidence Rule
OTHER
Oct 1, 2018 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2017 Resolved
Nitrate-Nitrite
Monitoring and reporting
Jan 1, 2016 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2011 Active
Enforcement action in place

Full record since 1976

EPA's records for Town of Manville go back to 1976. Before October 19, 2016 they list 38 health-based violations (1 resolved, 37 archived by EPA without a recorded fix) and 13 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1970s 0 2
2000s 6 1
2010 to October 18, 2016 32 10
October 19, 2016 to 2019 3 67
2020s 0 55

Most recent health-based violation before October 19, 2016: Combined Uranium, began October 2016, Archived.

Show all 38 health-based violations before October 19, 2016
Contaminant Start date Status
Combined Uranium
Contaminant limit exceeded
Measured 34 µg/L, federal limit 30 µg/L (1.1 times the limit)
Oct 1, 2016 Archived
Combined Uranium
Contaminant limit exceeded
Measured 34 µg/L, federal limit 30 µg/L (1.1 times the limit)
Jul 1, 2016 Archived
Combined Uranium
Contaminant limit exceeded
Apr 1, 2016 Archived
Combined Uranium
Contaminant limit exceeded
Jan 1, 2016 Archived
Combined Uranium
Contaminant limit exceeded
Oct 1, 2015 Archived
Combined Uranium
Contaminant limit exceeded
Jul 1, 2015 Archived
Combined Uranium
Contaminant limit exceeded
Apr 1, 2015 Archived
Combined Uranium
Contaminant limit exceeded
Jan 1, 2015 Archived
Total Coliform
Contaminant limit exceeded
Jan 1, 2015 Resolved
Combined Uranium
Contaminant limit exceeded
Oct 1, 2014 Archived
Combined Uranium
Contaminant limit exceeded
Jul 1, 2014 Archived
Combined Uranium
Contaminant limit exceeded
Apr 1, 2014 Archived
Combined Uranium
Contaminant limit exceeded
Jan 1, 2014 Archived
Combined Uranium
Contaminant limit exceeded
Oct 1, 2013 Archived
Combined Uranium
Contaminant limit exceeded
Jul 1, 2013 Archived
Combined Uranium
Contaminant limit exceeded
Apr 1, 2013 Archived
Combined Uranium
Contaminant limit exceeded
Jan 1, 2013 Archived
Combined Uranium
Contaminant limit exceeded
Jul 1, 2012 Archived
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 20 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
Jul 1, 2012 Archived
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
Apr 1, 2012 Archived
Combined Uranium
Contaminant limit exceeded
Jan 1, 2012 Archived
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18.6 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
Jan 1, 2012 Archived
Combined Uranium
Contaminant limit exceeded
Oct 1, 2011 Archived
Combined Uranium
Contaminant limit exceeded
Jul 1, 2011 Archived
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 18 pCi/L, federal limit 15 pCi/L (1.2 times the limit)
Apr 1, 2011 Archived
Combined Uranium
Contaminant limit exceeded
Apr 1, 2011 Archived
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 19 pCi/L, federal limit 15 pCi/L (1.3 times the limit)
Jan 1, 2011 Archived
Combined Uranium
Contaminant limit exceeded
Jan 1, 2011 Archived
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 23 pCi/L, federal limit 15 pCi/L (1.5 times the limit)
Jul 1, 2010 Archived
Gross Alpha, Excl. Radon and U
Contaminant limit exceeded
Measured 25 pCi/L, federal limit 15 pCi/L (1.7 times the limit)
Apr 1, 2010 Archived
Combined Uranium
Contaminant limit exceeded
Apr 1, 2010 Archived
Combined Uranium
Contaminant limit exceeded
Measured 0.035 mg/L, federal limit 0.03 mg/L (1.2 times the limit)
Jan 1, 2010 Archived
Combined Uranium
Contaminant limit exceeded
Measured 0.039 mg/L, federal limit 0.03 mg/L (1.3 times the limit)
Oct 1, 2009 Archived
Combined Uranium
Contaminant limit exceeded
Measured 0.038 mg/L, federal limit 0.03 mg/L (1.3 times the limit)
Apr 1, 2009 Archived
Combined Uranium
Contaminant limit exceeded
Measured 0.039 mg/L, federal limit 0.03 mg/L (1.3 times the limit)
Oct 1, 2008 Archived
Combined Uranium
Contaminant limit exceeded
Measured 0.036 mg/L, federal limit 0.03 mg/L (1.2 times the limit)
Apr 1, 2008 Archived
Combined Uranium
Contaminant limit exceeded
Measured 0.045 mg/L, federal limit 0.03 mg/L (1.5 times the limit)
Jan 1, 2008 Archived
Combined Uranium
Contaminant limit exceeded
Jan 1, 2004 Archived

Enforcement actions

EPA took 4 formal enforcement actions against Town of Manville between 2010 and 2021. The most recent was a compliance order (no penalty) in April 2021.

Date By Action Violations covered
Apr 22, 2021 EPA Compliance order (no penalty) 106 violations: Consumer Confidence Rule, Radium-228, Heptachlor epoxide, Atrazine, Di(2-ethylhexyl) adipate
Sep 26, 2017 EPA Compliance order (no penalty) 1 violation: Nitrate-Nitrite
Jun 24, 2013 EPA Compliance order (no penalty) 16 violations (11 health-based): Gross Alpha, Excl. Radon and U, Total Coliform, Combined Uranium, Radium-228, Radium-226
Aug 27, 2010 EPA Compliance order (no penalty) 30 violations (29 health-based): Combined Uranium, Consumer Confidence Rule

What the violations mean

Combined Uranium

4 incidents

Test results for Combined Uranium were above the federal limit (a maximum contaminant level violation).

The utility had to notify customers about each of these violations.

Where the water comes from

Town of Manville draws water from 2 wells.

Annual water quality report

Town of Manville must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Town of Manville for a copy.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by EPA Region 8.