Public water system record
Colorado City MD
Serves Colorado City, Pueblo County, CO · 2,755 people served
Federal records show 24 health-based violations and 76 monitoring/reporting issues for Colorado City MD in the last ten years, including an unresolved Groundwater Rule violation.
System profile
Source water
Surface water
ZIP
81019
EPA system ID
CO0151200
- Health-based violations, last 10 years
- 24
- Resolved
- 22
- Unresolved
- 2
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 76
Key facts
- Colorado City MD draws water from 1 well and 1 surface water intake.
- Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 92.05 µg/L, federal limit 60 µg/L (1.5 times the limit), 2021.
- Most recent formal enforcement: compliance order with a penalty by Colorado, September 2023.
- Record on file since 1991, with 11 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 1,209 service lines.
Check whether Colorado City MD serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
140 | Sep 4, 2023 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Sep 4, 2023 | Active | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.064 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Apr 1, 2023 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Jan 1, 2023 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.072 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
|
220 | Oct 1, 2022 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.06094 mg/L, federal limit 0.06 mg/L (at or just above the limit)
|
220 | Jul 1, 2022 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.081 mg/L, federal limit 0.06 mg/L (1.4 times the limit)
|
220 | Apr 1, 2022 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.092 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Apr 1, 2022 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.082 mg/L, federal limit 0.06 mg/L (1.4 times the limit)
|
220 | Jan 1, 2022 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.094 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Jan 1, 2022 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.087 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Oct 1, 2021 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.077 mg/L, federal limit 0.06 mg/L (1.3 times the limit)
|
220 | Oct 1, 2021 | Resolved | No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Aug 1, 2021 | Resolved | Yes |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 92.05 µg/L, federal limit 60 µg/L (1.5 times the limit)
|
220 | Jul 1, 2021 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 112.18 µg/L, federal limit 80 µg/L (1.4 times the limit)
|
220 | Jul 1, 2021 | Resolved | No |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Dec 1, 2020 | Resolved | Yes |
|
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
|
120 | Dec 1, 2020 | Resolved | Yes |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.094 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Jan 1, 2018 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Jan 1, 2018 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.066 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Oct 1, 2017 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.099 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
220 | Oct 1, 2017 | Resolved | No |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.0914 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
220 | Jul 1, 2017 | Resolved | No |
|
Chlorine dioxide
Disinfectant residual limit exceeded
Measured 0.87 mg/L, federal limit 0.8 mg/L (1.1 times the limit)
|
210 | Dec 1, 2016 | Resolved | Yes |
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Oct 1, 2016 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2026 | Active |
|
Public Notice
OTHER
|
Dec 1, 2025 | Active |
|
Public Notice
OTHER
|
Aug 31, 2025 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
May 2, 2025 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Public Notice
OTHER
|
Dec 1, 2024 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2024 | Resolved |
|
Public Notice
OTHER
|
Oct 3, 2023 | Resolved |
|
Public Notice
OTHER
|
Jul 3, 2023 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2023 | Resolved |
|
Chlorite
Monitoring and reporting
|
Jun 1, 2023 | Resolved |
|
Chlorine dioxide
Monitoring and reporting
|
Jun 1, 2023 | Resolved |
|
Chlorite
Monitoring and reporting
|
May 1, 2023 | Resolved |
|
Chlorine dioxide
Monitoring and reporting
|
May 1, 2023 | Resolved |
|
Chlorite
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Chlorine dioxide
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Chlorine dioxide
Monitoring and reporting
|
Mar 1, 2023 | Resolved |
|
Chlorite
Monitoring and reporting
|
Mar 1, 2023 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Feb 17, 2023 | Resolved |
|
Dalapon
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2022 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2022 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Public Notice
OTHER
|
May 28, 2022 | Resolved |
|
Public Notice
OTHER
|
Mar 28, 2022 | Resolved |
|
Selenium
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Thallium, Total
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Beryllium, Total
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Antimony, Total
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Nickel
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Mercury
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Chromium (total)
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Cadmium
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Barium
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Public Notice
OTHER
|
Dec 25, 2021 | Resolved |
|
Public Notice
OTHER
|
Oct 16, 2021 | Resolved |
|
Public Notice
OTHER
|
Oct 1, 2021 | Resolved |
|
Public Notice
OTHER
|
Sep 28, 2021 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2021 | Resolved |
|
Public Notice
OTHER
|
Jun 28, 2021 | Resolved |
|
Public Notice
OTHER
|
Dec 28, 2020 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Sep 28, 2020 | Resolved |
|
Revised Total Coliform Rule
OTHER
|
Aug 28, 2020 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 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 |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Chlorine dioxide
Monitoring and reporting
|
Sep 1, 2018 | Resolved |
|
Chlorite
Monitoring and reporting
|
Sep 1, 2018 | Resolved |
|
Chlorine dioxide
Monitoring and reporting
|
Aug 1, 2018 | Resolved |
|
Chlorite
Monitoring and reporting
|
Aug 1, 2018 | Resolved |
|
Chlorine dioxide
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Chlorite
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Chlorine dioxide
Monitoring and reporting
|
Sep 1, 2017 | Resolved |
|
Chlorite
Monitoring and reporting
|
Sep 1, 2017 | Resolved |
|
Chlorine dioxide
Monitoring and reporting
|
Aug 1, 2017 | Resolved |
|
Chlorite
Monitoring and reporting
|
Aug 1, 2017 | Resolved |
|
Chlorine dioxide
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Chlorite
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Dalapon
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Chlorine dioxide
Monitoring and reporting
|
Dec 1, 2016 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2016 | Resolved |
|
Stage 2 Disinfection Byproducts Rule
Monitoring and reporting
|
Oct 25, 2016 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Oct 1, 2016 | Resolved |
Full record since 1991
EPA's records for Colorado City MD go back to 1991. Before October 19, 2016 they list 11 health-based violations (11 resolved) and 24 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 3 | 9 |
| 2000s | 0 | 2 |
| 2010 to October 18, 2016 | 8 | 13 |
| October 19, 2016 to 2019 | 6 | 21 |
| 2020s | 17 | 52 |
Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began October 2016, Resolved.
Show all 11 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 |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.1 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
Jan 1, 2015 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Oct 1, 2014 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
|
Jul 1, 2014 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 2012 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Mar 1, 2012 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1998 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Aug 1, 1998 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 1994 | Resolved |
Enforcement actions
Colorado regulators took 2 formal enforcement actions against Colorado City MD between 2018 and 2023. The most recent was a compliance order with a penalty in September 2023.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 27, 2023 | Colorado | Compliance order with a penalty | 28 violations (17 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs), Arsenic, Barium, Chromium (total) |
| Mar 8, 2018 | Colorado | Compliance order with a penalty | 17 violations (17 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs) |
What the violations mean
Haloacetic Acids (HAA5)
10 incidentsHaloacetic acid byproducts exceeded the federal limit
Long-term exposure to HAAs may increase cancer risk
Total Trihalomethanes (TTHMs)
7 incidentsDisinfection byproduct levels exceeded the federal limit
Long-term TTHM exposure may increase bladder cancer risk
Interim Enhanced Surface Water Treatment Rule
3 incidentsThe 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
Groundwater Rule
2 incidentsThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about each of these violations.
Chlorine dioxide
1 incidentChlorine dioxide levels were above the federal maximum residual disinfectant level.
The utility had to notify customers about this violation.
Surface Water Treatment Rule
1 incidentThe 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 this violation.
Where the water comes from
Colorado City MD draws water from 1 well and 1 surface water intake.
Annual water quality report
Colorado City MD 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.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
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.
Certified drinking water labs by state EPA guidance for private wells