Public water system record
Princeton Water Supply
Serves Princeton, Scott County, IA · 923 people served
Federal records show 1 health-based violation and 1 monitoring/reporting issue for Princeton Water Supply in the last ten years. The most serious issue in this window was a resolved Nitrate violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 1
Key facts
- Princeton Water Supply draws water from 1 well.
- Highest measured level in the last 10 years: Nitrate, 12.1 mg/L, federal limit 10 mg/L (1.2 times the limit), 2024.
- Most recent formal enforcement: signed compliance agreement by Iowa, December 2009.
- Record on file since 1990, with 5 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 1 unknown out of 666 service lines.
Check whether Princeton 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 |
|---|---|---|---|---|
|
Nitrate
Contaminant limit exceeded
Measured 12.1 mg/L, federal limit 10 mg/L (1.2 times the limit)
|
330 | Sep 1, 2024 | Resolved | Yes |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Nitrate
Monitoring and reporting
|
May 1, 2024 | Resolved |
Full record since 1990
EPA's records for Princeton Water Supply go back to 1990. Before October 19, 2016 they list 5 health-based violations (5 resolved) and 5 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 1 |
| 2000s | 4 | 4 |
| 2020s | 1 | 1 |
Most recent health-based violation before October 19, 2016: Nitrate (acute), began December 2009, Resolved.
Show all 5 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Nitrate (acute)
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
|
Dec 1, 2009 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
|
Jul 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2007 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1990 | Resolved |
Enforcement actions
Iowa regulators took 1 formal enforcement action against Princeton Water Supply in 2009. The most recent was a signed compliance agreement in December 2009.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 30, 2009 | Iowa | Signed compliance agreement | 1 violation (1 health-based): Nitrate |
What the violations mean
Nitrate
1 incidentNitrate exceeded the federal limit
High nitrate is especially dangerous for infants under 6 months and can cause blue baby syndrome
Where the water comes from
Princeton Water Supply draws water from 1 well.
Annual water quality report
Princeton 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