Public water system record
San Acacio Domestic WA
Serves San Acacio, Costilla County, CO · 40 people served
Federal records show 3 health-based violations and 105 monitoring/reporting issues for San Acacio Domestic WA in the last ten years. The most serious issue in this window was a resolved LEAD AND COPPER RULE REVISIONS violation.
System profile
Source water
Groundwater
ZIP
81152
EPA system ID
CO0112850
- Health-based violations, last 10 years
- 3
- Resolved
- 3
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 105
Key facts
- San Acacio Domestic WA draws water from 1 well.
- Most recent formal enforcement: compliance order with a penalty by Colorado, September 2025.
- Record on file since 1992, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 24 unknown out of 26 service lines.
Check whether San Acacio Domestic WA 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 |
|---|---|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Resolved | No |
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
210 | Jan 1, 2023 | Resolved | No |
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
210 | Aug 1, 2017 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
Sep 8, 2025 |
Active
Enforcement action in place
|
|
Public Notice
OTHER
|
Jun 6, 2025 |
Active
Enforcement action in place
|
|
Public Notice
OTHER
|
Mar 8, 2025 |
Active
Enforcement action in place
|
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Public Notice
OTHER
|
Dec 8, 2024 |
Active
Enforcement action in place
|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2023 | Resolved |
|
Public Notice
OTHER
|
Feb 10, 2023 |
Active
Enforcement action in place
|
|
Chlorine
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2022 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2021 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Chlordane
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
ETHYLENE DIBROMIDE
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
1,2-DIBROMO-3-CHLOROPROPANE
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 |
|
Aldicarb
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Carbofuran
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Aldicarb sulfone
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Aldicarb sulfoxide
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 |
|
Endothall
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Diquat
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 |
|
Selenium
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Thallium, Total
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Beryllium, Total
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Antimony, Total
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Nickel
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Mercury
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Chromium (total)
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Cadmium
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Barium
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Arsenic
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Fluoride
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2019 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2019 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2018 | Resolved |
|
Public Notice
OTHER
|
Feb 3, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2018 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jan 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2017 | Resolved |
|
Public Notice
OTHER
|
Nov 2, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2017 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2017 | Resolved |
|
Revised Total Coliform Rule
OTHER
|
May 10, 2017 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2017 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2017 | Resolved |
Full record since 1992
EPA's records for San Acacio Domestic WA go back to 1992. Before October 19, 2016 they list no health-based violations and 77 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 4 |
| 2000s | 0 | 61 |
| 2010 to October 18, 2016 | 0 | 12 |
| October 19, 2016 to 2019 | 1 | 22 |
| 2020s | 2 | 83 |
Enforcement actions
Colorado regulators took 4 formal enforcement actions against San Acacio Domestic WA and issued 1 boil water order between 2006 and 2025. The most recent was a compliance order with a penalty in September 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 29, 2025 | Colorado | Compliance order with a penalty | 8 violations (1 health-based): Public Notice, LEAD AND COPPER RULE REVISIONS, Lead and Copper Rule |
| Aug 4, 2020 | Colorado | Boil water order | 1 violation |
| Mar 8, 2018 | Colorado | Compliance order with a penalty | 14 violations (1 health-based): Stage 1 Disinfection Byproducts Rule, Lead and Copper Rule, Revised Total Coliform Rule, Chlorine, Public Notice |
| Apr 10, 2007 | Colorado | Compliance order with a penalty | 2 violations: Consumer Confidence Rule |
| Jan 20, 2006 | Colorado | Compliance order (no penalty) | 1 violation: Consumer Confidence Rule |
What the violations mean
Stage 1 Disinfection Byproducts Rule
2 incidentsThe system did not meet a treatment requirement of the Stage 1 Disinfectants and Disinfection Byproducts Rule
Byproducts form when disinfectants react with natural material in water. Long-term exposure above federal limits may increase cancer risk
LEAD AND COPPER RULE REVISIONS
1 incidentThe system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
San Acacio Domestic WA draws water from 1 well.
Annual water quality report
San Acacio Domestic WA 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 San Acacio Domestic WA 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.
Certified drinking water labs by state EPA guidance for private wells