Public water system record
Elephant Rock MHP
Serves Palmer Lake, El Paso County, CO · 60 people served
Federal records show 18 health-based violations and 51 monitoring/reporting issues for Elephant Rock MHP in the last ten years. The most serious issue in this window was a resolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 18
- Resolved
- 18
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 51
Key facts
- Elephant Rock MHP draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
- Highest measured level in the last 10 years: Combined Radium (-226 and -228), 7.39 pCi/L, federal limit 5 pCi/L (1.5 times the limit), 2021.
- Most recent formal enforcement: civil case filed in court by Colorado, August 2022.
- Record on file since 1997, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 28 service lines.
Check whether Elephant Rock MHP 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 | Apr 16, 2023 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.3 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
340 | Jul 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 5.8 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Apr 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.2 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Jan 1, 2022 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.3 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
340 | Oct 1, 2021 | Resolved | No |
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
210 | Oct 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 7.39 pCi/L, federal limit 5 pCi/L (1.5 times the limit)
|
340 | Jul 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.77 pCi/L, federal limit 5 pCi/L (1.4 times the limit)
|
340 | Apr 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.63 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
340 | Jan 1, 2021 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.63 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
340 | Oct 1, 2020 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.43 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
340 | Jul 1, 2020 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.3 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
340 | Apr 1, 2020 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.4 pCi/L, federal limit 5 pCi/L (1.3 times the limit)
|
340 | Jan 1, 2020 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.1 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Oct 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 5.75 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Jul 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.08 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Apr 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.03 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Jan 1, 2019 | Resolved | No |
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
Measured 6.1 pCi/L, federal limit 5 pCi/L (1.2 times the limit)
|
340 | Oct 1, 2018 | 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 |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Apr 1, 2025 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2025 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jul 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2024 | Resolved |
|
Styrene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Ethylbenzene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Toluene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Benzene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
CHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Tetrachloroethylene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
1,1,2-Trichloroethane
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Trichloroethylene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
1,2-Dichloropropane
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Carbon tetrachloride
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
1,1,1-Trichloroethane
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
1,2-Dichloroethane
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
trans-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
1,1-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Vinyl chloride
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
p-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
o-Dichlorobenzene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
DICHLOROMETHANE
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Xylenes, Total
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
cis-1,2-Dichloroethylene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
1,2,4-Trichlorobenzene
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Public Notice
OTHER
|
Sep 25, 2023 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2023 | Resolved |
|
Public Notice
OTHER
|
Nov 26, 2022 | Resolved |
|
Public Notice
OTHER
|
Aug 18, 2022 | Resolved |
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jul 1, 2022 | Resolved |
|
Public Notice
OTHER
|
May 19, 2022 |
Active
Enforcement action in place
|
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Apr 1, 2022 | Resolved |
|
Public Notice
OTHER
|
Feb 11, 2022 |
Active
Enforcement action in place
|
|
Combined Radium (-226 and -228)
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Public Notice
OTHER
|
Nov 20, 2021 | Resolved |
|
Public Notice
OTHER
|
Nov 4, 2021 | Resolved |
|
Public Notice
OTHER
|
Oct 16, 2021 | Resolved |
|
Public Notice
OTHER
|
Oct 9, 2021 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Sep 1, 2021 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2021 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2021 | Resolved |
|
Public Notice
OTHER
|
Jul 11, 2020 | Resolved |
|
Public Notice
OTHER
|
Jun 6, 2020 | Resolved |
|
Public Notice
OTHER
|
Nov 17, 2019 | Resolved |
|
Public Notice
OTHER
|
Feb 4, 2019 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2018 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2003 |
Active
Enforcement action in place
|
Full record since 1997
EPA's records for Elephant Rock MHP go back to 1997. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 212 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 0 |
| 2000s | 0 | 111 |
| 2010 to October 18, 2016 | 0 | 101 |
| October 19, 2016 to 2019 | 5 | 4 |
| 2020s | 13 | 46 |
Most recent health-based violation before October 19, 2016: Total Coliform, began June 1997, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1997 | Resolved |
Enforcement actions
Colorado regulators took 9 formal enforcement actions against Elephant Rock MHP and issued 2 boil water orders between 2006 and 2022. The most recent was a civil case filed in court in August 2022.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Aug 22, 2022 | Colorado | Civil case filed in court | 20 violations (16 health-based): Public Notice, Combined Radium (-226 and -228) |
| Jul 20, 2022 | Colorado | Boil water order | 1 violation |
| Jun 21, 2022 | Colorado | Compliance order with a penalty | 17 violations (16 health-based): Combined Radium (-226 and -228), Public Notice |
| Mar 28, 2022 | Colorado | Compliance order with a penalty | 16 violations (14 health-based): Combined Radium (-226 and -228), Public Notice |
| Oct 7, 2021 | Colorado | Boil water order | 1 violation |
| Dec 19, 2019 | Colorado | Compliance order (no penalty) | 14 violations (14 health-based): Combined Radium (-226 and -228) |
| Aug 26, 2009 | Colorado | Consent decree or court judgment | 83 violations: Chlorine, Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs), Antimony, Total, Beryllium, Total |
| Jan 15, 2009 | Colorado | Civil case filed in court | 87 violations: Consumer Confidence Rule, Chlorine, Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs), Nitrate |
| Aug 31, 2007 | Colorado | Compliance order with a penalty | 5 violations: Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs), Lead and Copper Rule |
| Apr 10, 2007 | Colorado | Compliance order with a penalty | 2 violations: Consumer Confidence Rule |
| Feb 8, 2006 | Colorado | Compliance order (no penalty) | 1 violation: Consumer Confidence Rule |
What the violations mean
Combined Radium (-226 and -228)
16 incidentsTest results for Combined Radium (-226 and -228) were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about each of these violations.
Groundwater Rule
1 incidentThe 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 this violation.
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
Where the water comes from
Elephant Rock MHP draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
Elephant Rock MHP 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 Elephant Rock MHP 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