Public water system record
Griswold Water Supply
Serves Griswold, Cass County, IA · 1,008 people served
Federal records show no health-based violations and 4 monitoring/reporting issues for Griswold 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
- 4
Key facts
- Griswold Water Supply draws water from 3 wells.
- Most recent formal enforcement: signed compliance agreement by Iowa, November 2007.
- Record on file since 1988, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 10 lead and 5 unknown out of 560 service lines.
Check whether Griswold 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.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jul 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jul 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Full record since 1988
EPA's records for Griswold Water Supply go back to 1988. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 6 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 2 |
| 1990s | 2 | 3 |
| 2000s | 0 | 1 |
| 2020s | 0 | 4 |
Most recent health-based violation before October 19, 2016: Nitrate (acute), began April 1998, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Nitrate (acute)
Contaminant limit exceeded
|
Apr 1, 1998 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Oct 1, 1995 | Resolved |
Enforcement actions
Iowa regulators took 1 formal enforcement action against Griswold Water Supply in 2007. The most recent was a signed compliance agreement in November 2007.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Nov 5, 2007 | Iowa | Signed compliance agreement | 1 violation: Haloacetic Acids (HAA5) |
Where the water comes from
Griswold Water Supply draws water from 3 wells.
Annual water quality report
Griswold 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