Public water system record
Mexican Hat SSD
Serves Mexican Hat, San Juan County, UT · 40 people served
Federal records show 1 health-based violation and 57 monitoring/reporting issues for Mexican Hat SSD 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
- 57
Key facts
- Mexican Hat SSD draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: compliance order (no penalty) by Utah, February 1994.
- Record on file since 1988, with 6 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 16 unknown out of 20 service lines.
Check whether Mexican Hat SSD 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 | Nov 25, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2022 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 2, 2021 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2021 | Resolved |
|
Chlordane
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Pentachlorophenol
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
2,4,5-TP
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
2,4-D
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
LASSO
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Atrazine
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Carbofuran
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Dinoseb
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Picloram
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Simazine
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
OXAMYL
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Dalapon
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Endrin
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 |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Revised Total Coliform Rule
OTHER
|
Oct 1, 2017 | Resolved |
|
E. coli
Monitoring and reporting
|
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 |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
Full record since 1988
EPA's records for Mexican Hat SSD go back to 1988. Before October 19, 2016 they list 6 health-based violations (4 resolved, 2 archived by EPA without a recorded fix) and 180 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 8 |
| 1990s | 2 | 37 |
| 2000s | 3 | 130 |
| 2010 to October 18, 2016 | 1 | 5 |
| October 19, 2016 to 2019 | 1 | 6 |
| 2020s | 0 | 51 |
Most recent health-based violation before October 19, 2016: Lead and Copper Rule, began August 2015, Resolved.
Show all 6 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Lead and Copper Rule
Treatment technique failure
|
Aug 16, 2015 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2003 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2003 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1994 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 1993 | Archived |
Enforcement actions
Utah regulators took 1 formal enforcement action against Mexican Hat SSD in 1994. The most recent was a compliance order (no penalty) in February 1994.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Feb 17, 1994 | Utah | Compliance order (no penalty) | 8 violations (1 health-based): Lead and Copper Rule, Nitrate, Total Coliform |
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
Mexican Hat SSD draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
Mexican Hat SSD 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 Mexican Hat SSD 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 Utah.
Certified drinking water labs by state EPA guidance for private wells