Public water system record

Coalby Domestic WC

On record as serving Delta County, CO · Serves 239 people

Federal records show 7 health-based violations and 178 monitoring/reporting issues for Coalby Domestic WC in the last ten years. The most serious issue in this window was a resolved Interim Enhanced Surface Water Treatment Rule violation.

  • CO0115185
  • CEDAREDGE
  • CO
  • 239 served

System profile

Source water Groundwater under direct influence
ZIP 81413
EPA system ID CO0115185

Verify this system on EPA ECHO →

Health-based violations, last 10 years
7
Resolved
7
Unresolved
0
Any acute record
Yes
Monitoring issues, last 10 years
178

Key facts

  • Coalby Domestic WC draws water from 4 wells.
  • Most recent formal enforcement: compliance order with a penalty by Colorado, November 2021.
  • Record on file since 1992, with 36 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 117 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
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 May 1, 2022 Resolved Yes
Surface Water Treatment Rule
Treatment technique failure
120 Jan 1, 2022 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Feb 1, 2017 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Jan 1, 2017 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Dec 1, 2016 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Nov 1, 2016 Resolved No
Surface Water Treatment Rule
Treatment technique failure
120 Oct 1, 2016 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Revised Total Coliform Rule
RPT
Dec 1, 2025 Active
Chlorine
Monitoring and reporting
Oct 1, 2025 Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2022 Resolved
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2021 Resolved
Styrene
Monitoring and reporting
Jul 1, 2021 Resolved
Ethylbenzene
Monitoring and reporting
Jul 1, 2021 Resolved
Toluene
Monitoring and reporting
Jul 1, 2021 Resolved
Benzene
Monitoring and reporting
Jul 1, 2021 Resolved
CHLOROBENZENE
Monitoring and reporting
Jul 1, 2021 Resolved
Tetrachloroethylene
Monitoring and reporting
Jul 1, 2021 Resolved
1,1,2-Trichloroethane
Monitoring and reporting
Jul 1, 2021 Resolved
Trichloroethylene
Monitoring and reporting
Jul 1, 2021 Resolved
1,2-Dichloropropane
Monitoring and reporting
Jul 1, 2021 Resolved
Carbon tetrachloride
Monitoring and reporting
Jul 1, 2021 Resolved
1,1,1-Trichloroethane
Monitoring and reporting
Jul 1, 2021 Resolved
1,2-Dichloroethane
Monitoring and reporting
Jul 1, 2021 Resolved
trans-1,2-Dichloroethylene
Monitoring and reporting
Jul 1, 2021 Resolved
1,1-Dichloroethylene
Monitoring and reporting
Jul 1, 2021 Resolved
Vinyl chloride
Monitoring and reporting
Jul 1, 2021 Resolved
p-Dichlorobenzene
Monitoring and reporting
Jul 1, 2021 Resolved
o-Dichlorobenzene
Monitoring and reporting
Jul 1, 2021 Resolved
DICHLOROMETHANE
Monitoring and reporting
Jul 1, 2021 Resolved
Xylenes, Total
Monitoring and reporting
Jul 1, 2021 Resolved
cis-1,2-Dichloroethylene
Monitoring and reporting
Jul 1, 2021 Resolved
1,2,4-Trichlorobenzene
Monitoring and reporting
Jul 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2021 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2021 Resolved
Styrene
Monitoring and reporting
Apr 1, 2021 Resolved
Ethylbenzene
Monitoring and reporting
Apr 1, 2021 Resolved
Toluene
Monitoring and reporting
Apr 1, 2021 Resolved
Benzene
Monitoring and reporting
Apr 1, 2021 Resolved
CHLOROBENZENE
Monitoring and reporting
Apr 1, 2021 Resolved
Tetrachloroethylene
Monitoring and reporting
Apr 1, 2021 Resolved
1,1,2-Trichloroethane
Monitoring and reporting
Apr 1, 2021 Resolved
Trichloroethylene
Monitoring and reporting
Apr 1, 2021 Resolved
1,2-Dichloropropane
Monitoring and reporting
Apr 1, 2021 Resolved
Carbon tetrachloride
Monitoring and reporting
Apr 1, 2021 Resolved
1,1,1-Trichloroethane
Monitoring and reporting
Apr 1, 2021 Resolved
1,2-Dichloroethane
Monitoring and reporting
Apr 1, 2021 Resolved
trans-1,2-Dichloroethylene
Monitoring and reporting
Apr 1, 2021 Resolved
1,1-Dichloroethylene
Monitoring and reporting
Apr 1, 2021 Resolved
Vinyl chloride
Monitoring and reporting
Apr 1, 2021 Resolved
p-Dichlorobenzene
Monitoring and reporting
Apr 1, 2021 Resolved
o-Dichlorobenzene
Monitoring and reporting
Apr 1, 2021 Resolved
DICHLOROMETHANE
Monitoring and reporting
Apr 1, 2021 Resolved
Xylenes, Total
Monitoring and reporting
Apr 1, 2021 Resolved
cis-1,2-Dichloroethylene
Monitoring and reporting
Apr 1, 2021 Resolved
1,2,4-Trichlorobenzene
Monitoring and reporting
Apr 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2021 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2021 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Nov 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2020 Resolved
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2020 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Sep 1, 2020 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Sep 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2020 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Aug 1, 2020 Resolved
Styrene
Monitoring and reporting
Jul 1, 2020 Resolved
Ethylbenzene
Monitoring and reporting
Jul 1, 2020 Resolved
Toluene
Monitoring and reporting
Jul 1, 2020 Resolved
Benzene
Monitoring and reporting
Jul 1, 2020 Resolved
CHLOROBENZENE
Monitoring and reporting
Jul 1, 2020 Resolved
Tetrachloroethylene
Monitoring and reporting
Jul 1, 2020 Resolved
1,1,2-Trichloroethane
Monitoring and reporting
Jul 1, 2020 Resolved
Trichloroethylene
Monitoring and reporting
Jul 1, 2020 Resolved
1,2-Dichloropropane
Monitoring and reporting
Jul 1, 2020 Resolved
Carbon tetrachloride
Monitoring and reporting
Jul 1, 2020 Resolved
1,1,1-Trichloroethane
Monitoring and reporting
Jul 1, 2020 Resolved
1,2-Dichloroethane
Monitoring and reporting
Jul 1, 2020 Resolved
trans-1,2-Dichloroethylene
Monitoring and reporting
Jul 1, 2020 Resolved
1,1-Dichloroethylene
Monitoring and reporting
Jul 1, 2020 Resolved
Vinyl chloride
Monitoring and reporting
Jul 1, 2020 Resolved
p-Dichlorobenzene
Monitoring and reporting
Jul 1, 2020 Resolved
o-Dichlorobenzene
Monitoring and reporting
Jul 1, 2020 Resolved
DICHLOROMETHANE
Monitoring and reporting
Jul 1, 2020 Resolved
Xylenes, Total
Monitoring and reporting
Jul 1, 2020 Resolved
cis-1,2-Dichloroethylene
Monitoring and reporting
Jul 1, 2020 Resolved
1,2,4-Trichlorobenzene
Monitoring and reporting
Jul 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Jun 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jun 1, 2020 Resolved
Chlorine
Monitoring and reporting
Apr 1, 2020 Resolved
Styrene
Monitoring and reporting
Apr 1, 2020 Resolved
Ethylbenzene
Monitoring and reporting
Apr 1, 2020 Resolved
Toluene
Monitoring and reporting
Apr 1, 2020 Resolved
Benzene
Monitoring and reporting
Apr 1, 2020 Resolved
CHLOROBENZENE
Monitoring and reporting
Apr 1, 2020 Resolved
Tetrachloroethylene
Monitoring and reporting
Apr 1, 2020 Resolved
1,1,2-Trichloroethane
Monitoring and reporting
Apr 1, 2020 Resolved
Trichloroethylene
Monitoring and reporting
Apr 1, 2020 Resolved
1,2-Dichloropropane
Monitoring and reporting
Apr 1, 2020 Resolved
Carbon tetrachloride
Monitoring and reporting
Apr 1, 2020 Resolved
1,1,1-Trichloroethane
Monitoring and reporting
Apr 1, 2020 Resolved
1,2-Dichloroethane
Monitoring and reporting
Apr 1, 2020 Resolved
trans-1,2-Dichloroethylene
Monitoring and reporting
Apr 1, 2020 Resolved
1,1-Dichloroethylene
Monitoring and reporting
Apr 1, 2020 Resolved
Vinyl chloride
Monitoring and reporting
Apr 1, 2020 Resolved
p-Dichlorobenzene
Monitoring and reporting
Apr 1, 2020 Resolved
o-Dichlorobenzene
Monitoring and reporting
Apr 1, 2020 Resolved
DICHLOROMETHANE
Monitoring and reporting
Apr 1, 2020 Resolved
Xylenes, Total
Monitoring and reporting
Apr 1, 2020 Resolved
cis-1,2-Dichloroethylene
Monitoring and reporting
Apr 1, 2020 Resolved
1,2,4-Trichlorobenzene
Monitoring and reporting
Apr 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Apr 1, 2020 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2020 Resolved
Public Notice
OTHER
Nov 22, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2019 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Oct 1, 2019 Resolved
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2019 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Sep 1, 2019 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Sep 1, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2019 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2019 Resolved
Styrene
Monitoring and reporting
Jul 1, 2019 Resolved
Ethylbenzene
Monitoring and reporting
Jul 1, 2019 Resolved
Toluene
Monitoring and reporting
Jul 1, 2019 Resolved
Benzene
Monitoring and reporting
Jul 1, 2019 Resolved
CHLOROBENZENE
Monitoring and reporting
Jul 1, 2019 Resolved
Tetrachloroethylene
Monitoring and reporting
Jul 1, 2019 Resolved
1,1,2-Trichloroethane
Monitoring and reporting
Jul 1, 2019 Resolved
Trichloroethylene
Monitoring and reporting
Jul 1, 2019 Resolved
1,2-Dichloropropane
Monitoring and reporting
Jul 1, 2019 Resolved
Carbon tetrachloride
Monitoring and reporting
Jul 1, 2019 Resolved
1,1,1-Trichloroethane
Monitoring and reporting
Jul 1, 2019 Resolved
1,2-Dichloroethane
Monitoring and reporting
Jul 1, 2019 Resolved
trans-1,2-Dichloroethylene
Monitoring and reporting
Jul 1, 2019 Resolved
1,1-Dichloroethylene
Monitoring and reporting
Jul 1, 2019 Resolved
Vinyl chloride
Monitoring and reporting
Jul 1, 2019 Resolved
p-Dichlorobenzene
Monitoring and reporting
Jul 1, 2019 Resolved
o-Dichlorobenzene
Monitoring and reporting
Jul 1, 2019 Resolved
DICHLOROMETHANE
Monitoring and reporting
Jul 1, 2019 Resolved
Xylenes, Total
Monitoring and reporting
Jul 1, 2019 Resolved
cis-1,2-Dichloroethylene
Monitoring and reporting
Jul 1, 2019 Resolved
1,2,4-Trichlorobenzene
Monitoring and reporting
Jul 1, 2019 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2019 Resolved
Styrene
Monitoring and reporting
Apr 1, 2019 Resolved
Ethylbenzene
Monitoring and reporting
Apr 1, 2019 Resolved
Toluene
Monitoring and reporting
Apr 1, 2019 Resolved
Benzene
Monitoring and reporting
Apr 1, 2019 Resolved
CHLOROBENZENE
Monitoring and reporting
Apr 1, 2019 Resolved
Tetrachloroethylene
Monitoring and reporting
Apr 1, 2019 Resolved
1,1,2-Trichloroethane
Monitoring and reporting
Apr 1, 2019 Resolved
Trichloroethylene
Monitoring and reporting
Apr 1, 2019 Resolved
1,2-Dichloropropane
Monitoring and reporting
Apr 1, 2019 Resolved
Carbon tetrachloride
Monitoring and reporting
Apr 1, 2019 Resolved
1,1,1-Trichloroethane
Monitoring and reporting
Apr 1, 2019 Resolved
1,2-Dichloroethane
Monitoring and reporting
Apr 1, 2019 Resolved
trans-1,2-Dichloroethylene
Monitoring and reporting
Apr 1, 2019 Resolved
1,1-Dichloroethylene
Monitoring and reporting
Apr 1, 2019 Resolved
Vinyl chloride
Monitoring and reporting
Apr 1, 2019 Resolved
p-Dichlorobenzene
Monitoring and reporting
Apr 1, 2019 Resolved
o-Dichlorobenzene
Monitoring and reporting
Apr 1, 2019 Resolved
DICHLOROMETHANE
Monitoring and reporting
Apr 1, 2019 Resolved
Xylenes, Total
Monitoring and reporting
Apr 1, 2019 Resolved
cis-1,2-Dichloroethylene
Monitoring and reporting
Apr 1, 2019 Resolved
1,2,4-Trichlorobenzene
Monitoring and reporting
Apr 1, 2019 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Apr 1, 2019 Resolved
Haloacetic Acids (HAA5)
Monitoring and reporting
Jan 1, 2019 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
Jan 1, 2019 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2019 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jan 1, 2019 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Dec 1, 2018 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Nov 1, 2018 Resolved
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2018 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Sep 1, 2018 Resolved
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2017 Resolved
Surface Water Treatment Rule
Monitoring and reporting
Jul 1, 2017 Resolved
Stage 2 Disinfection Byproducts Rule
Monitoring and reporting
Nov 21, 2016 Resolved

Full record since 1992

EPA's records for Coalby Domestic WC go back to 1992. Before October 19, 2016 they list 36 health-based violations (36 resolved) and 27 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 1 2
2000s 20 25
2010 to October 18, 2016 15 0
October 19, 2016 to 2019 4 67
2020s 2 111

Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began October 2016, Resolved.

Show all 36 health-based violations before October 19, 2016
Contaminant Start date Status
Surface Water Treatment Rule
Treatment technique failure
Oct 1, 2016 Resolved
Surface Water Treatment Rule
Treatment technique failure
Sep 1, 2016 Resolved
Surface Water Treatment Rule
Treatment technique failure
Aug 1, 2016 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jul 1, 2016 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jun 1, 2016 Resolved
Surface Water Treatment Rule
Treatment technique failure
May 1, 2016 Resolved
Surface Water Treatment Rule
Treatment technique failure
Apr 1, 2016 Resolved
Surface Water Treatment Rule
Treatment technique failure
Mar 1, 2016 Resolved
Surface Water Treatment Rule
Treatment technique failure
Feb 1, 2016 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jan 1, 2016 Resolved
Surface Water Treatment Rule
Treatment technique failure
Dec 1, 2015 Resolved
Surface Water Treatment Rule
Treatment technique failure
Nov 1, 2015 Resolved
Surface Water Treatment Rule
Treatment technique failure
Oct 1, 2015 Resolved
Surface Water Treatment Rule
Treatment technique failure
Sep 1, 2015 Resolved
Surface Water Treatment Rule
Treatment technique failure
Aug 1, 2015 Resolved
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
Mar 1, 2007 Resolved
Surface Water Treatment Rule
Treatment technique failure
Apr 1, 2006 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jul 1, 2005 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jun 1, 2005 Resolved
Surface Water Treatment Rule
Treatment technique failure
May 1, 2005 Resolved
Surface Water Treatment Rule
Treatment technique failure
Apr 1, 2005 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jun 1, 2004 Resolved
Surface Water Treatment Rule
Treatment technique failure
May 1, 2004 Resolved
Surface Water Treatment Rule
Treatment technique failure
Apr 1, 2004 Resolved
Surface Water Treatment Rule
Treatment technique failure
Mar 1, 2004 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jul 1, 2003 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jun 1, 2003 Resolved
Surface Water Treatment Rule
Treatment technique failure
May 1, 2003 Resolved
Surface Water Treatment Rule
Treatment technique failure
Apr 1, 2003 Resolved
Surface Water Treatment Rule
Treatment technique failure
May 1, 2002 Resolved
Surface Water Treatment Rule
Treatment technique failure
Apr 1, 2002 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jun 1, 2001 Resolved
Surface Water Treatment Rule
Treatment technique failure
May 1, 2001 Resolved
Surface Water Treatment Rule
Treatment technique failure
Apr 1, 2001 Resolved
Surface Water Treatment Rule
Treatment technique failure
Mar 16, 2001 Resolved
Total Coliform
Contaminant limit exceeded
Jan 1, 1993 Resolved

Enforcement actions

Colorado regulators took 3 formal enforcement actions against Coalby Domestic WC and issued 4 boil water orders between 2002 and 2021, filed as 8 records in EPA's data. The most recent was a compliance order with a penalty in November 2021.

Date By Action Violations covered
Nov 10, 2021 Colorado Compliance order with a penalty 165 violations: Lead and Copper Rule, 1,2,4-Trichlorobenzene, cis-1,2-Dichloroethylene, Xylenes, Total, o-Dichlorobenzene
May 10, 2006 Colorado Compliance order (no penalty) 4 violations (4 health-based): Surface Water Treatment Rule
Apr 24, 2006 Colorado Boil water order 1 violation (1 health-based): Surface Water Treatment Rule
Jun 16, 2004 Colorado Boil water order 2 violations (2 health-based): Surface Water Treatment Rule
Jun 1, 2004 Colorado Compliance order (no penalty) 1 violation (1 health-based): Surface Water Treatment Rule
May 27, 2004 Colorado Boil water order 1 violation (1 health-based): Surface Water Treatment Rule
Apr 12, 2002 Colorado Boil water order 1 violation (1 health-based): Surface Water Treatment Rule

What the violations mean

Surface Water Treatment Rule

6 incidents

The system did not complete a treatment step or action that the Surface Water Treatment Rule requires (a treatment technique violation).

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

Interim Enhanced Surface Water Treatment Rule

1 incident

The system did not meet a filtration or treatment requirement for surface water

Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through

Where the water comes from

Coalby Domestic WC draws water from 4 wells. It also has an emergency connection to Town of Cedaredge.

Emergency or part-time connections to

Annual water quality report

Coalby Domestic WC 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 Coalby Domestic WC 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 Colorado.