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.
Metropolitan District Commission
CT0640011 · Surface water · 390,887 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 Dec 31, 2025
Violation history (1)
Imported violation history for Metropolitan District Commission| Rule | Status | Period |
|---|
| Interim Enhanced Surface Water Treatment Rule | Resolved | Jun 1, 2025 to Jun 30, 2025 |
Ctwc - Northern Reg-Western System
CT0473011 · Surface water · 101,313 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
13% of the listed benchmark
Monitoring period: Jan 1, 2026 to Jun 30, 2026
Violation history (2)
Imported violation history for Ctwc - Northern Reg-Western System| Rule | Status | Period |
|---|
| Public Notice | Resolved | Dec 14, 2024 to Dec 14, 2024 |
| Public Notice | Unaddressed | Jun 8, 2018 |
Manchester Water Department
CT0770021 · Surface water · 51,198 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 Dec 31, 2025
Violation history (3)
Imported violation history for Manchester Water Department| Rule | Status | Period |
|---|
| CARBON, TOTAL | Resolved | Nov 1, 2024 to Nov 30, 2024 |
| CARBON, TOTAL | Resolved | Nov 1, 2024 to Nov 30, 2024 |
| Consumer Confidence Rule | Resolved | Aug 10, 2023 to Aug 24, 2023 |
Ctwc - Redwood Farms Division
CT0770041 · Groundwater · 424 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
8% of the listed benchmark
Monitoring period: Jan 1, 2025 to Dec 31, 2025
Copper (90th percentile)
EPA SDWIS Lead and Copper Rule samples
- Reported level
- Action level
108% of the listed benchmark
Monitoring period: Jan 1, 2004 to Jun 30, 2004
Violation history (0)
No record returned in this imported window. This is not a guarantee of tap-water safety.