Public water system record
Rock Valley Rural Water District
Serves Rock Valley, Sioux County, IA · 2,230 people served
Federal records show no health-based violations and no monitoring or reporting issues for Rock Valley Rural Water District 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
- 0
Key facts
- Rock Valley Rural Water District draws water from 18 wells.
- Record on file since 1987, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 947 service lines.
Check whether Rock Valley Rural Water District 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, and no monitoring or reporting violations either.
Full record since 1987
EPA's records for Rock Valley Rural Water District go back to 1987. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 12 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 1 |
| 1990s | 1 | 8 |
| 2000s | 0 | 3 |
| 2010 to October 18, 2016 | 1 | 0 |
Most recent health-based violation before October 19, 2016: Groundwater Rule, began August 2016, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
Aug 1, 2016 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 1993 | Resolved |
Where the water comes from
Rock Valley Rural Water District draws water from 18 wells. 3 other community water systems buy water from Rock Valley Rural Water District.
Community systems that buy water from it
- Hudson Hudson, SD
- Hull Water Supply Hull, IA
- Lyon-Sioux RWS-Boyden Rock Rapids, IA
Annual water quality report
Rock Valley Rural Water District 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.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
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 Iowa.
Certified drinking water labs by state EPA guidance for private wells