Public water system record
Blairstown Water Supply
Serves Blairstown, Benton County, IA · 738 people served
Federal records show 1 health-based violation and no monitoring/reporting issues for Blairstown Water Supply in the last ten years. The most serious issue in this window was a resolved Nitrite violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 0
Key facts
- Blairstown Water Supply draws water from 2 wells.
- Highest measured level in the last 10 years: Nitrite, 1.27 mg/L, federal limit 1 mg/L (1.3 times the limit), 2024.
- Most recent formal enforcement: signed compliance agreement by Iowa, December 2007.
- Record on file since 1988, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 7 lead and 0 unknown out of 333 service lines.
Check whether Blairstown 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.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Nitrite
Contaminant limit exceeded
Measured 1.27 mg/L, federal limit 1 mg/L (1.3 times the limit)
|
330 | Aug 1, 2024 | Resolved | Yes |
Full record since 1988
EPA's records for Blairstown Water Supply go back to 1988. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 5 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 1 |
| 1990s | 2 | 2 |
| 2000s | 0 | 2 |
| 2020s | 1 | 0 |
Most recent health-based violation before October 19, 2016: Combined Radium (-226 and -228), began October 1996, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Combined Radium (-226 and -228)
Contaminant limit exceeded
|
Oct 1, 1996 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1993 | Resolved |
Enforcement actions
Iowa regulators took 1 formal enforcement action against Blairstown Water Supply in 2007. The most recent was a signed compliance agreement in December 2007.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 12, 2007 | Iowa | Signed compliance agreement | 1 violation: Haloacetic Acids (HAA5) |
What the violations mean
Nitrite
1 incidentNitrite exceeded the federal limit
High nitrite is especially dangerous for infants under 6 months
Where the water comes from
Blairstown Water Supply draws water from 2 wells.
Annual water quality report
Blairstown 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