Public water system record
Hildale - Colorado City
Serves Colorado City, Hildale and Centennial Park, Washington County, UT and Mohave County, AZ · 6,100 people served
Federal records show 1 health-based violation and 103 monitoring/reporting issues for Hildale - Colorado City in the last ten years. The most serious issue in this window was a resolved Revised Total Coliform Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 103
Key facts
- Hildale - Colorado City draws water from 12 wells and 2 springs (1 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: criminal case filed by Utah, September 1985.
- Record on file since 1984, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 947 service lines.
Check whether Hildale - Colorado City 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 |
|---|---|---|---|---|
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | Aug 20, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
E. coli
Monitoring and reporting
|
Jun 4, 2025 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2025 | Resolved |
|
E. coli
Monitoring and reporting
|
Jul 25, 2024 | Active |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
E. coli
Monitoring and reporting
|
May 30, 2019 | Resolved |
|
Chlordane
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Pentachlorophenol
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
2,4,5-TP
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
2,4-D
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
LASSO
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Atrazine
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Carbofuran
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Dinoseb
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Picloram
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Simazine
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
OXAMYL
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Dalapon
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Endrin
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Radium-228
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Radium-226
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2018 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Radium-228
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Radium-226
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Chlordane
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Pentachlorophenol
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
2,4,5-TP
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
2,4-D
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
LASSO
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Atrazine
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Carbofuran
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Dinoseb
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Picloram
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Simazine
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
OXAMYL
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Dalapon
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Endrin
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Radium-226
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Radium-228
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Revised Total Coliform Rule
OTHER
|
Oct 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Sep 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Aug 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Chlordane
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Pentachlorophenol
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
2,4,5-TP
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
2,4-D
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
LASSO
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Atrazine
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Carbofuran
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Dinoseb
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Picloram
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Simazine
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
OXAMYL
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Dalapon
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Endrin
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jun 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
Radium-228
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2015 | Resolved |
Full record since 1984
EPA's records for Hildale - Colorado City go back to 1984. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 306 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 59 |
| 1990s | 0 | 79 |
| 2000s | 0 | 15 |
| 2010 to October 18, 2016 | 1 | 153 |
| October 19, 2016 to 2019 | 1 | 97 |
| 2020s | 0 | 5 |
Most recent health-based violation before October 19, 2016: Total Coliform, began September 2015, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2015 | Resolved |
Enforcement actions
Utah regulators took 1 formal enforcement action against Hildale - Colorado City in 1985. The most recent was a criminal case filed in September 1985.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 30, 1985 | Utah | Criminal case filed | 8 violations: Arsenic, Barium, Cadmium, Chromium (total), Fluoride |
What the violations mean
Revised Total Coliform Rule
1 incidentThe system did not meet a requirement of the Revised Total Coliform Rule
Coliform and E. coli rules protect against bacteria in the distribution system
Where the water comes from
Hildale - Colorado City draws water from 12 wells and 2 springs (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
Hildale - Colorado City 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 Utah.
Certified drinking water labs by state EPA guidance for private wells