Public water system record
Riverdale Subdivision
Serves Horace, Cass County, ND · 88 people served
Federal records show no health-based violations and 3 monitoring/reporting issues for Riverdale Subdivision in the last ten years. At least one of these issues remains unresolved.
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
- Riverdale Subdivision draws water from 2 wells.
- Record on file since 1993, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 22 unknown out of 22 service lines.
Check whether Riverdale Subdivision 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 |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Nov 24, 2025 | Active |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Jul 2, 2025 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2018 | Resolved |
Full record since 1993
EPA's records for Riverdale Subdivision go back to 1993. Before October 19, 2016 they list 1 health-based violation (1 archived by EPA without a recorded fix) and 5 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 3 |
| 2010 to October 18, 2016 | 0 | 2 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 0 | 2 |
Most recent health-based violation before October 19, 2016: Total Coliform, began August 1993, Archived.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1993 | Archived |
Where the water comes from
Riverdale Subdivision draws water from 2 wells.
Annual water quality report
Riverdale Subdivision 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 Riverdale Subdivision 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 North Dakota.
Certified drinking water labs by state EPA guidance for private wells