Public water system record
Ponderosa Ridge
Serves an area of Pennington County, SD that includes Rapid City · 90 people served
Federal records show no health-based violations and 3 monitoring/reporting issues for Ponderosa Ridge in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 3
Key facts
- Ponderosa Ridge draws water from 1 well.
- Record on file since 1988, with 7 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 35 service lines.
Check whether Ponderosa Ridge 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.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
E. coli
Monitoring and reporting
|
Dec 16, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2020 | Resolved |
Full record since 1988
EPA's records for Ponderosa Ridge go back to 1988. Before October 19, 2016 they list 7 health-based violations (7 resolved) and 41 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 8 |
| 1990s | 3 | 29 |
| 2000s | 3 | 4 |
| 2010 to October 18, 2016 | 1 | 0 |
| 2020s | 0 | 3 |
Most recent health-based violation before October 19, 2016: Total Coliform, began December 2015, Resolved.
Show all 7 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 2015 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1997 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1995 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1994 | Resolved |
Where the water comes from
Ponderosa Ridge draws water from 1 well.
Annual water quality report
Ponderosa Ridge 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 Ponderosa Ridge 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 South Dakota.
Certified drinking water labs by state EPA guidance for private wells