Public water system record
Diagonal Water Department
Serves Diagonal, Ringgold County, IA · 338 people served
Federal records show no health-based violations and 11 monitoring/reporting issues for Diagonal Water Department 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
- 11
Key facts
- Diagonal Water Department buys its water from Sirwa #2 (Creston).
- Most recent formal enforcement: compliance order (no penalty) by Iowa, December 2018.
- Record on file since 2007, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 151 service lines.
Check whether Diagonal Water Department 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 |
|---|---|---|
|
Public Notice
OTHER
|
Mar 21, 2025 | Active |
|
Public Notice
OTHER
|
Oct 21, 2024 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2024 | Resolved |
|
Nitrite
Monitoring and reporting
|
Oct 1, 2024 | Resolved |
|
Nitrite
Monitoring and reporting
|
Apr 1, 2024 | Resolved |
|
Nitrite
Monitoring and reporting
|
Jan 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Apr 1, 2023 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Aug 1, 2021 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Nov 1, 2019 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2019 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jun 1, 2018 | Resolved |
Full record since 2007
EPA's records for Diagonal Water Department go back to 2007. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 7 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 0 | 2 |
| 2010 to October 18, 2016 | 1 | 5 |
| October 19, 2016 to 2019 | 0 | 3 |
| 2020s | 0 | 8 |
Most recent health-based violation before October 19, 2016: Total Coliform, began May 2010, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2010 | Resolved |
Enforcement actions
Iowa regulators took 1 formal enforcement action against Diagonal Water Department in 2018. The most recent was a compliance order (no penalty) in December 2018.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 14, 2018 | Iowa | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
Where the water comes from
Diagonal Water Department buys its water from Sirwa #2 (Creston). It lists no wells or intakes of its own.
Buys water from
- Sirwa #2 (Creston) Creston, IA
Annual water quality report
Diagonal Water Department 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 Diagonal Water Department 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 Iowa.
Certified drinking water labs by state EPA guidance for private wells