Siasconset Water Department
EPA ID: MA4197001 · 3,000 people served · 2 ZIP codes
ZipCheckup's reading of EPA records for Siasconset Water Department (MA4197001): 1 violation recorded with unresolved status in the SDWIS data used. In EPA records, Siasconset Water Department has 1 violation listed as unresolved, with the utility supplying water to approximately 3,000 residents.
Data: EPA SDWIS
Service Area Map
Coverage area for Siasconset Water Department Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Siasconset Water Department have a median household income of $125,524 and about 14,276 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 55% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
Siasconset Water Department's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Massachusetts
System Overview
Siasconset Water Department (EPA ID: MA4197001) is a community water system in Massachusetts that serves approximately 3,000 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 1 resolved, 1 archived, 0 addressed, and 1 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| July 2, 2025 | Consumer Confidence Rule | Non-health-based | Unaddressed (current) |
| April 1, 2025 | Nitrate | Non-health-based | Archived |
| July 1, 2022 | Consumer Confidence Rule | Non-health-based | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Consumer Confidence Rule | Other (notice or report rule) | 2 | No |
| Nitrate | Monitoring & Reporting | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| Below the reporting limit | No | 2025-12-31 |
The accepted LCR snapshot contains 1 reported copper action-level exceedance record for this PWSID. The source does not provide a verified copper level for publication.
Radon Risk in Service Area
2 of 2 ZIP records with known zones are in EPA Radon Zone 2.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by MA or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Siasconset Water Department (MA4197001) on EPA.gov.
Frequently Asked Questions
Is Siasconset Water Department water safe to drink?
The accepted 2026Q2 ECHO snapshot shows 1 current noncompliance record and zero current records classified as health-based. That classification is not a property-specific water test or safety guarantee.
How many people does Siasconset Water Department serve?
Siasconset Water Department serves approximately 3,000 people across 2 ZIP codes in Massachusetts.
Where does Siasconset Water Department get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Siasconset Water Department (MA): 3 EPA Violations. https://zipcheckup.com/water-system/ma4197001/
@misc{zipcheckup-water-system-ma4197001,
author = {{ZipCheckup}},
title = {{Siasconset Water Department (MA): 3 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/ma4197001/}
}
What You Can Do
Test your water
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Check your specific ZIP code
Water quality can vary within a system. View nearest ZIP report →
Contact your utility
Siasconset Water Department (EPA ID: MA4197001) - request the latest Consumer Confidence Report or ask about specific contaminants.