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.
Harrisonville Pws
MO1010349 · Surface water · 10,019 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
Below action level- Reported level
- Action level
16% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (4)
Imported violation history for Harrisonville Pws| Rule | Status | Period |
|---|
| Surface Water Treatment Rule | Resolved | Dec 1, 2024 to Dec 31, 2024 |
| Interim Enhanced Surface Water Treatment Rule | Resolved | Dec 1, 2024 to Dec 31, 2024 |
| Interim Enhanced Surface Water Treatment Rule | Resolved | Dec 1, 2024 to Dec 31, 2024 |
| Consumer Confidence Rule | Resolved | Jul 1, 2021 to Dec 6, 2021 |
Cass County Pwsd 9
MO1024118 · Groundwater · 6,063 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
Below action level- Reported level
- Action level
7% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.
Cass County Pwsd 4
MO1024116 · Groundwater · 1,840 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
Below action level- Reported level
- Action level
30% of the listed benchmark
Monitoring period: Jan 1, 2023 to Dec 31, 2025
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.