Water Quality in 02554 — Nantucket, MA
EPA data for WANNACOMET WATER COMPANY
Data source: U.S. Environmental Protection Agency (EPA) SDWIS Last verified: March 16, 2026
Your Water System
ZIP code 02554 in Nantucket, Massachusetts is served by WANNACOMET WATER COMPANY (EPA ID: MA4197000). This system provides water to approximately 27,703 people from groundwater sources.
There are 2 community water systems serving this area.
Lead & Copper in Your Water
No Lead & Copper Rule sampling data available for systems serving this ZIP code.
Violation Summary
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| April 1, 2025 | Barium | Monitoring | Unresolved |
| April 1, 2025 | Nitrite | Monitoring | Unresolved |
| April 1, 2025 | Contaminant 1045 | Monitoring | Unresolved |
| April 1, 2025 | Cadmium | Monitoring | Unresolved |
| April 1, 2025 | Chromium | Monitoring | Unresolved |
| April 1, 2025 | Fluoride | Monitoring | Unresolved |
| April 1, 2025 | Contaminant 1052 | Monitoring | Unresolved |
| April 1, 2025 | Mercury | Monitoring | Unresolved |
| April 1, 2025 | Contaminant 1075 | Monitoring | Unresolved |
| April 1, 2025 | Contaminant 1036 | Monitoring | Unresolved |
| April 1, 2025 | Contaminant 1085 | Monitoring | Unresolved |
| April 1, 2025 | Selenium | Monitoring | Unresolved |
| April 1, 2025 | Nitrate | Monitoring | Unresolved |
| April 1, 2025 | Lead | Monitoring | Unresolved |
| April 1, 2025 | Copper | Monitoring | Unresolved |
| April 1, 2025 | Bromate | Monitoring | Unresolved |
| April 1, 2025 | Bromochloroacetic Acid | Monitoring | Unresolved |
| April 1, 2025 | Chlorodibromomethane | Monitoring | Unresolved |
| April 1, 2025 | Monobromoacetic Acid | Monitoring | Unresolved |
| April 1, 2025 | Chlorodibromoacetic Acid | Monitoring | Unresolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for water systems serving this ZIP code:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Surface Water Treatment Rule | Treatment Technique | 4 | No |
| Contaminant 2051 | Other | 4 | No |
| Benzene | Organic | 4 | No |
| Contaminant 2046 | Other | 4 | No |
| Contaminant 2959 | Other | 4 | No |
| Contaminant 2105 | Other | 4 | No |
| Contaminant 2005 | Other | 4 | No |
| Contaminant 2946 | Other | 4 | No |
| Contaminant 2067 | Other | 4 | No |
| Contaminant 2065 | Other | 4 | No |
| Contaminant 2326 | Other | 4 | No |
| Contaminant 2020 | Other | 4 | No |
| Contaminant 2110 | Other | 4 | No |
| Contaminant 2015 | Other | 4 | No |
| Contaminant 2010 | Other | 4 | No |
Need help with your water quality?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| WANNACOMET WATER COMPANY | MA4197000 | 27,703 | Groundwater |
| SIASCONSET WATER DEPARTMENT | MA4197001 | 3,000 | Groundwater |
What You Can Do
- Review your annual Consumer Confidence Report (CCR) — Your utility publishes this each July
- Test your home’s water — Especially if you have older plumbing (pre-1986) that may contain lead
- Stay informed — Bookmark this page to check for updates on your water quality
Need help with water testing or filtration?
Call to get connected with a local professional in your area.
Call (855) 384-4856This is a free service. You will be connected with an independent service provider.
Other Water Quality Reports in Massachusetts
- 01002 (Amherst) — 3 violations
- 01013 (Chicopee)
- 01060 (Northampton)
- 01101 (Springfield) — 5 violations
- 01201 (Pittsfield)
- 01450 (Groton)
- 01580 (Westborough)
- 01601 (Worcester)
- 01701 (Framingham)
- 01801 (Woburn) — 2 violations
- 01803 (Burlington) — 12 violations
- 01810 (Andover) — 9 violations
- 01821 (Billerica) — 7 violations
- 01830 (Haverhill) — 38 violations
- 01840 (Lawrence)
- 01850 (Lowell) — 1 violation
- 01864 (North Reading)
- 01901 (Lynn)
- 01930 (Gloucester)
- 01960 (Peabody)
Nearby Water Quality Reports
- 02540 (Falmouth) — 34 mi — 3 violations
- 02740 (New Bedford) — 50 mi
- 02360 (Plymouth) — 52 mi — 7 violations
- 02331 (Duxbury) — 58 mi — 5 violations
- 02348 (Lakeville) — 59 mi — 14 violations
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for WANNACOMET WATER COMPANY (MA4197000) on EPA.gov.
Frequently Asked Questions
Is the tap water in 02554 safe to drink?
Based on EPA records, the water system serving ZIP code 02554 has only monitoring/reporting violations, which are procedural in nature. However, individual home conditions (old pipes, well water) can affect quality.
Where does 02554’s water come from?
The primary water source for this area is groundwater. WANNACOMET WATER COMPANY serves approximately 27,703 people.
How can I get my water tested?
Contact your local water utility for a free water quality report, or hire a certified lab for independent home water testing. The EPA recommends testing annually if you use a private well.
Does 02554 have lead in the water?
No Lead and Copper Rule sampling data is currently available in EPA records for water systems serving ZIP code 02554. If you are concerned about lead, contact your water utility or have your tap water independently tested.
What is the radon risk in 02554?
Radon zone data is not available for ZIP code 02554. The EPA recommends testing all homes for radon regardless of location, as radon levels can vary significantly even within the same neighborhood.