Southwest Harbor Water & Sewer District
EPA ID: ME0091490 · 2,480 people served · 3 ZIP codes
ZipCheckup's reading of EPA records for Southwest Harbor Water & Sewer District (ME0091490): 1 violation recorded with unresolved status in the SDWIS data used. Southwest Harbor Water & Sewer District | open status in EPA data: 1 violation | people served: about 2,480.
Data: EPA SDWIS
Service Area Map
Coverage area for Southwest Harbor Water & Sewer District Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Southwest Harbor Water & Sewer District have a median household income of $68,000 and about 1,731 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 76% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Southwest Harbor Water & Sewer District's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Maine
System Overview
Southwest Harbor Water & Sewer District (EPA ID: ME0091490) is a community water system in Maine that serves approximately 2,480 people from surface water sources.
This system provides water to 3 ZIP codes across 3 communities.
Violation History
Status breakdown for accepted records with record years 2021-2026: 4 resolved, 0 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 |
|---|---|---|---|
| October 19, 2023 | Public Notice | Non-health-based | Unaddressed (current) |
| July 1, 2022 | Consumer Confidence Rule | Non-health-based | Resolved |
| April 1, 2022 | TTHM | Non-health-based | Resolved |
| April 1, 2022 | Total Haloacetic Acids (HAA5) | Non-health-based | Resolved |
| December 30, 2021 | Lead and Copper 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 |
|---|---|---|---|
| Total Haloacetic Acids (HAA5) | Monitoring & Reporting | 1 | No |
| TTHM | Monitoring & Reporting | 1 | No |
| Public Notice | Monitoring & Reporting | 1 | No |
| Consumer Confidence Rule | Other (notice or report rule) | 1 | No |
| Public Notice | Other (notice or report rule) | 1 | No |
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| 0.0021 mg/L | No | 2024-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Radon Risk in Service Area
3 of 3 ZIP records with known zones are in EPA Radon Zone 1.
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 ME 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 Southwest Harbor Water & Sewer District (ME0091490) on EPA.gov.
Frequently Asked Questions
Is Southwest Harbor Water & Sewer District 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 Southwest Harbor Water & Sewer District serve?
Southwest Harbor Water & Sewer District serves approximately 2,480 people across 3 ZIP codes in Maine.
Where does Southwest Harbor Water & Sewer District get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Southwest Harbor Water and Sewer District: 5 EPA Violations. https://zipcheckup.com/water-system/me0091490/
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title = {{Southwest Harbor Water and Sewer District: 5 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/me0091490/}
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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
Southwest Harbor Water & Sewer District (EPA ID: ME0091490) - request the latest Consumer Confidence Report or ask about specific contaminants.