Public water system record
Denison Water Supply
Serves Denison, Crawford County, IA · 9,381 people served
Federal records show no health-based violations and no monitoring or reporting issues for Denison Water Supply 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
- Denison Water Supply draws water from 13 wells.
- Record on file since 1990, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 4 unknown out of 2,956 service lines.
Check whether Denison Water Supply 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 1990
EPA's records for Denison Water Supply go back to 1990. Before October 19, 2016 they list no health-based violations and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 2 |
| 2000s | 0 | 1 |
Where the water comes from
Denison Water Supply draws water from 13 wells. 2 other community water systems buy water from Denison Water Supply.
Community systems that buy water from it
- W Central Rwa - Denison Subsys Manning, IA
- West Central Rwa - Nish System Manning, IA
Annual water quality report
Denison Water Supply 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