Public water system record
Spearfish Valley Mobile Estates
Serves Spearfish and North Spearfish, Lawrence County, SD · 163 people served
Federal records show 1 health-based violation and 1 monitoring/reporting issue for Spearfish Valley Mobile Estates in the last ten years. The most serious issue in this window was a resolved Stage 1 Disinfection Byproducts Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 1
Key facts
- Spearfish Valley Mobile Estates draws water from 1 well.
- Record on file since 1976, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 62 service lines.
Check whether Spearfish Valley Mobile 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 |
|---|---|---|---|---|
|
Stage 1 Disinfection Byproducts Rule
Treatment technique failure
|
210 | Oct 1, 2021 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
Feb 1, 2024 | Resolved |
Full record since 1976
EPA's records for Spearfish Valley Mobile Estates go back to 1976. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 7 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 2 |
| 1990s | 2 | 5 |
| 2020s | 1 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began December 1998, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1998 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1998 | Resolved |
What the violations mean
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
Spearfish Valley Mobile Estates draws water from 1 well.
Annual water quality report
Spearfish Valley Mobile 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 Spearfish Valley Mobile 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 South Dakota.
Certified drinking water labs by state EPA guidance for private wells