Public water system record
Sheridan Lake WD
Serves Sheridan Lake, Kiowa County, CO · 148 people served
Federal records show 18 health-based violations and 131 monitoring/reporting issues for Sheridan Lake WD 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
81071
EPA system ID
CO0131800
- Health-based violations, last 10 years
- 18
- Resolved
- 18
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 131
Key facts
- Sheridan Lake WD draws water from 2 wells.
- Highest measured level in the last 10 years: Combined Uranium, 63.5 µg/L, federal limit 30 µg/L (2.1 times the limit), 2018.
- Most recent formal enforcement: compliance order (no penalty) by Colorado, May 2012.
- Record on file since 1982, with 19 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 73 service lines.
Check whether Sheridan Lake WD 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 |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 27, 2024 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jul 27, 2024 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
Measured 31.25 µg/L, federal limit 30 µg/L (at or just above the limit)
|
340 | Apr 1, 2023 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
Measured 42 µg/L, federal limit 30 µg/L (1.4 times the limit)
|
340 | Oct 1, 2020 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
Measured 57 µg/L, federal limit 30 µg/L (1.9 times the limit)
|
340 | Jul 1, 2020 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
Measured 59 µg/L, federal limit 30 µg/L (2 times the limit)
|
340 | Apr 1, 2020 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
Measured 62 µg/L, federal limit 30 µg/L (2.1 times the limit)
|
340 | Jan 1, 2020 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
Measured 62 µg/L, federal limit 30 µg/L (2.1 times the limit)
|
340 | Oct 1, 2019 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
Measured 61 µg/L, federal limit 30 µg/L (2 times the limit)
|
340 | Jul 1, 2019 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
Measured 60 µg/L, federal limit 30 µg/L (2 times the limit)
|
340 | Apr 1, 2019 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
Measured 60 µg/L, federal limit 30 µg/L (2 times the limit)
|
340 | Jan 1, 2019 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
Measured 61.5 µg/L, federal limit 30 µg/L (2.1 times the limit)
|
340 | Oct 1, 2018 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
Measured 62 µg/L, federal limit 30 µg/L (2.1 times the limit)
|
340 | Jul 1, 2018 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
Measured 63.5 µg/L, federal limit 30 µg/L (2.1 times the limit)
|
340 | Apr 1, 2018 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
Measured 62 µg/L, federal limit 30 µg/L (2.1 times the limit)
|
340 | Jan 1, 2018 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
Measured 55.5 µg/L, federal limit 30 µg/L (1.9 times the limit)
|
340 | Jan 1, 2017 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
Measured 55 µg/L, federal limit 30 µg/L (1.8 times the limit)
|
340 | Jan 1, 2016 | 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
|
Oct 28, 2025 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2025 | Active |
|
Public Notice
OTHER
|
Jul 28, 2025 | Resolved |
|
Public Notice
OTHER
|
Jun 6, 2025 | Resolved |
|
Public Notice
OTHER
|
Apr 28, 2025 | Resolved |
|
Public Notice
OTHER
|
Mar 8, 2025 | Resolved |
|
Public Notice
OTHER
|
Mar 6, 2025 | Resolved |
|
Public Notice
OTHER
|
Jan 28, 2025 | Resolved |
|
Public Notice
OTHER
|
Dec 8, 2024 | Resolved |
|
Public Notice
OTHER
|
Oct 28, 2024 | Resolved |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Resolved |
|
Public Notice
OTHER
|
Jul 28, 2024 | Resolved |
|
Public Notice
OTHER
|
Apr 28, 2024 | Resolved |
|
Combined Uranium
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Endothall
Monitoring and reporting
|
Apr 1, 2023 | Resolved |
|
Styrene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Toluene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Benzene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
|
Styrene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Toluene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Benzene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Chlordane
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
ETHYLENE DIBROMIDE
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,2-DIBROMO-3-CHLOROPROPANE
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Total Polychlorinated Biphenyls (PCB)
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Pentachlorophenol
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
2,4,5-TP
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
2,4-D
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
LASSO
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Atrazine
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Carbofuran
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Dinoseb
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Picloram
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Simazine
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
OXAMYL
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Endothall
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Diquat
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Dalapon
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Endrin
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Styrene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Toluene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Benzene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Nitrate
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Selenium
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Thallium, Total
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Beryllium, Total
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Antimony, Total
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Nickel
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Mercury
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Chromium (total)
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Cadmium
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Barium
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Arsenic
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Fluoride
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Gross Alpha, Excl. Radon and U
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Chlordane
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2020 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 31, 2016 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2016 | Resolved |
Full record since 1982
EPA's records for Sheridan Lake WD go back to 1982. Before October 19, 2016 they list 19 health-based violations (18 resolved, 1 archived by EPA without a recorded fix) and 54 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 1 | 0 |
| 1990s | 1 | 17 |
| 2000s | 11 | 12 |
| 2010 to October 18, 2016 | 6 | 25 |
| October 19, 2016 to 2019 | 9 | 1 |
| 2020s | 8 | 129 |
Most recent health-based violation before October 19, 2016: Combined Uranium, began January 2016, Resolved.
Show all 19 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Combined Uranium
Contaminant limit exceeded
Measured 55 µg/L, federal limit 30 µg/L (1.8 times the limit)
|
Jan 1, 2016 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2015 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 50 µg/L, federal limit 30 µg/L (1.7 times the limit)
|
Jan 1, 2015 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 47 µg/L, federal limit 30 µg/L (1.6 times the limit)
|
Jan 1, 2013 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 43 µg/L, federal limit 30 µg/L (1.4 times the limit)
|
Jan 1, 2011 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2010 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 44 µg/L, federal limit 30 µg/L (1.5 times the limit)
|
Jan 1, 2009 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 44 µg/L, federal limit 30 µg/L (1.5 times the limit)
|
Oct 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2008 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 35 µg/L, federal limit 30 µg/L (1.2 times the limit)
|
Jul 1, 2008 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 43 µg/L, federal limit 30 µg/L (1.4 times the limit)
|
Apr 1, 2008 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 36 µg/L, federal limit 30 µg/L (1.2 times the limit)
|
Jan 1, 2008 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 38 µg/L, federal limit 30 µg/L (1.3 times the limit)
|
Oct 1, 2007 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 39 µg/L, federal limit 30 µg/L (1.3 times the limit)
|
Jul 1, 2007 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 38.5 µg/L, federal limit 30 µg/L (1.3 times the limit)
|
Apr 1, 2007 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 36 µg/L, federal limit 30 µg/L (1.2 times the limit)
|
Jan 1, 2007 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
Measured 42.5 µg/L, federal limit 30 µg/L (1.4 times the limit)
|
Oct 1, 2006 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1995 | Resolved |
|
Selenium
Contaminant limit exceeded
|
Mar 28, 1982 | Archived |
Enforcement actions
Colorado regulators and EPA took 3 formal enforcement actions against Sheridan Lake WD between 1994 and 2012. The most recent was a compliance order (no penalty) in May 2012.
| Date | By | Action | Violations covered |
|---|---|---|---|
| May 1, 2012 | Colorado | Compliance order (no penalty) | 10 violations (9 health-based): Combined Uranium |
| Jan 20, 2009 | Colorado | Compliance order (no penalty) | 19 violations (19 health-based): Combined Uranium |
| Aug 31, 1994 | EPA | Compliance order (no penalty) | 1 violation: Total Coliform |
What the violations mean
Combined Uranium
15 incidentsTest results for Combined Uranium were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about each of these violations.
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.
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
Sheridan Lake WD draws water from 2 wells.
Annual water quality report
Sheridan Lake WD 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 Sheridan Lake WD 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