These are possible serving systems. A record for one system does not apply to every home in this ZIP. Confirm your provider before interpreting a measurement or notice. Federal records can lag current utility notices.
EPA snapshot: 2026Q2. Historical window begins Jan 1, 2021.
Fairfield Water Supply
IA5131033 · Groundwater · 9,821 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- Action level
0% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (1)
Imported violation history for Fairfield Water Supply| Rule | Status | Period |
|---|
| Combined Radium (-226 and -228) | Archived | Jan 1, 2023 to Dec 31, 2025 |
Jefferson County Rural Water District
IA5131705 · Surface water · 468 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- Action level
0% of the listed benchmark
Monitoring period: Jan 1, 2022 to Dec 31, 2024
Violation history (5)
Imported violation history for Jefferson County Rural Water District| Rule | Status | Period |
|---|
| Consumer Confidence Rule | Resolved | Jul 1, 2024 to Jan 1, 2025 |
| Public Notice | Unaddressed | May 30, 2024 |
| Public Notice | Unaddressed | Apr 22, 2024 |
| Revised Total Coliform Rule | Resolved | Jan 1, 2024 to Jan 31, 2024 |
| Revised Total Coliform Rule | Resolved | Dec 1, 2023 to Dec 31, 2023 |
Fairfield Estates Mobile Home Park
IA5131302 · Groundwater · 140 people served system-wide
The system names this served city; Census place overlap links the city to this ZCTA.
No active health-based record in this imported snapshot
Find this utility’s official report →Measurements (1)
An action level is a regulatory trigger, not a pass/fail health boundary. A reported zero is the value in the source record and does not establish that lead is absent at your tap.
Lead (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- Action level
0% of the listed benchmark
Monitoring period: Jan 1, 2025 to Jun 30, 2025
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.