Siasconset Water Department
PWSID: MA4197001
System Details
| Population Served | 3,000 |
| Service Connections | 852 |
| Water Source | Groundwater |
| System Type | Community Water System |
| Owner | Local Government |
| Status | Active |
| City | Nantucket |
| Zip Code | 02554 |
Areas Served
- Nantucket, Nantucket County, 02564
Lead & Copper Testing
| Contaminant | Level | EPA Action Level | Status |
|---|
| Copper (90th percentile) | 4.1400 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Copper (90th percentile) | 1.4900 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Copper (90th percentile) | 1.4600 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Copper (90th percentile) | 1.4000 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Copper (90th percentile) | 1.4000 mg/L | 1.300 mg/L | EXCEEDS Action Level |
| Lead (90th percentile) | 0.0330 mg/L | 0.015 mg/L | EXCEEDS Action Level |
| Lead (90th percentile) | 0.0040 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0020 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0020 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0020 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0012 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0010 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0010 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
| Lead (90th percentile) | 0.0000 mg/L | 0.015 mg/L | Below Action Level |
Violation History (79 total)
| Contaminant | Violation | Date | Health-Based | Status |
|---|
| | 2025-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
| | 2024-04-01 | | Acknowledged |
Showing 50 of 79 historical violations.