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.
Algona Municipal Utilities
IA5502015 · Groundwater · 5,487 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 (2)
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
33% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Copper (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- Action level
116% of the listed benchmark
Monitoring period: Jan 1, 1993 to Jun 30, 1993
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Oak Lake Maintenance, Inc.
IA5500838 · Groundwater · 128 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 (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Woodlyn Hills
IA5502319 · Groundwater · 80 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
7% of the listed benchmark
Monitoring period: Jan 1, 2025 to Dec 31, 2025
Violation history (2)
Imported violation history for Woodlyn Hills| Rule | Status | Period |
|---|
| Revised Total Coliform Rule | Resolved | Jul 1, 2024 to Jul 31, 2024 |
| Nitrate | Resolved | Oct 1, 2022 to Sep 30, 2023 |
Southdale Home Owners Assn
IA5500822 · Groundwater · 70 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 Jun 30, 2023
Violation history (3)
Imported violation history for Southdale Home Owners Assn| Rule | Status | Period |
|---|
| Toluene | Resolved | Jan 1, 2023 to Mar 31, 2023 |
| Revised Total Coliform Rule | Resolved | Mar 1, 2022 to Mar 31, 2022 |
| Nitrate | Resolved | Apr 1, 2021 to Mar 31, 2022 |