Public water system record
Lake Sanchez Estates
On record as serving Costilla County, CO · Serves 34 people
Federal records show 8 health-based violations and 212 monitoring/reporting issues for Lake Sanchez Estates in the last ten years. The most serious issue in this window was a resolved Groundwater Rule violation.
System profile
Source water
Groundwater
ZIP
81101
EPA system ID
CO0212466
- Health-based violations, last 10 years
- 8
- Resolved
- 8
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 212
Key facts
- Lake Sanchez Estates draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: compliance order with a penalty by Colorado, May 2020.
- Lead pipe inventory: 0 lead and 0 unknown out of 29 service lines.
Check whether Lake Sanchez Estates 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 | Feb 11, 2020 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Feb 11, 2020 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Feb 11, 2020 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Feb 11, 2020 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Feb 11, 2020 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Feb 11, 2020 | Resolved | No |
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
210 | Nov 1, 2019 | Resolved | No |
|
Revised Total Coliform Rule
Treatment technique failure
|
110 | May 2, 2019 | 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, 2024 | Resolved |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Public Notice
OTHER
|
Apr 28, 2023 | Resolved |
|
Revised Total Coliform Rule
OTHER
|
Mar 28, 2023 | Resolved |
|
Public Notice
OTHER
|
Jan 27, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Public Notice
OTHER
|
Nov 29, 2022 | Resolved |
|
Public Notice
OTHER
|
Oct 27, 2022 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2022 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Public Notice
OTHER
|
May 29, 2022 | Resolved |
|
Public Notice
OTHER
|
Apr 27, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2022 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Styrene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Toluene
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Public Notice
OTHER
|
Sep 1, 2021 | Resolved |
|
Public Notice
OTHER
|
Jul 27, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Oct 27, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Oct 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Sep 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Jul 27, 2020 | Resolved |
|
Fluoride
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Combined Uranium
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2020 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Jun 24, 2020 | Resolved |
|
Public Notice
OTHER
|
Jun 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2020 | Resolved |
|
Glyphosate
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Selenium
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Thallium, Total
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Beryllium, Total
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Antimony, Total
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Nickel
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Mercury
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Chromium (total)
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Cadmium
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Barium
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Arsenic
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Chlordane
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
ETHYLENE DIBROMIDE
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Pentachlorophenol
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
2,4,5-TP
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
2,4-D
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
LASSO
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Atrazine
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Carbofuran
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Dinoseb
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Picloram
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Simazine
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
OXAMYL
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Endothall
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Diquat
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Dalapon
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Endrin
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Combined Uranium
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Combined Uranium
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Nitrate
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Fluoride
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 |
|
Chlorine
Monitoring and reporting
|
Apr 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Mar 14, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Feb 6, 2020 | Resolved |
|
Public Notice
OTHER
|
Jan 27, 2020 | Resolved |
|
Glyphosate
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jan 1, 2020 | 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 |
|
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 |
|
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 |
|
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 |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Combined Uranium
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Fluoride
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 |
|
Combined Uranium
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Public Notice
OTHER
|
Dec 14, 2019 | Resolved |
|
Public Notice
OTHER
|
Oct 27, 2019 | Resolved |
|
Public Notice
OTHER
|
Jul 27, 2019 | Resolved |
|
Public Notice
OTHER
|
Jun 9, 2019 | Resolved |
|
Public Notice
OTHER
|
Apr 27, 2019 | Resolved |
|
Public Notice
OTHER
|
Jan 27, 2019 | Resolved |
|
Revised Total Coliform Rule
OTHER
|
Jan 11, 2019 | Resolved |
|
E. coli
Monitoring and reporting
|
Dec 23, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2018 | Resolved |
Enforcement actions
Colorado regulators took 1 formal enforcement action against Lake Sanchez Estates in 2020. The most recent was a compliance order with a penalty in May 2020.
| Date | By | Action | Violations covered |
|---|---|---|---|
| May 18, 2020 | Colorado | Compliance order with a penalty | 75 violations (8 health-based): Groundwater Rule, Stage 1 Disinfection Byproducts Rule, 1,2,4-Trichlorobenzene, cis-1,2-Dichloroethylene, Xylenes, Total |
What the violations mean
Groundwater Rule
6 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.
Stage 1 Disinfection Byproducts Rule
1 incidentThe 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
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
Lake Sanchez Estates draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
Lake Sanchez Estates 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 Lake Sanchez Estates 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