Southwest Harbor Water & Sewer District
EPA ID: ME0091490 · 2,480 people served · 3 ZIP codes
ZipCheckup's reading of EPA SDWIS for Southwest Harbor Water & Sewer District (ME0091490): 1 unresolved EPA violation on record. EPA compliance records for Southwest Harbor Water & Sewer District show 1 unresolved violation - findings that remain open and are tracked at the federal level, covering a service territory of approximately 2,480 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Southwest Harbor Water & Sewer District Source: EPA SDWIS service area boundaries.
Service area boundary
Service Area Demographics
The Southwest Harbor Water & Sewer District serves a community with a median household income of $68,000 and an estimated 1,731 residents across its service area. 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
Detected Contaminants
How Southwest Harbor Water & Sewer District compares to EPA limits
What This Means For You
Haloacetic Acids (HAA5) at 1 mg/L exceeds the EPA maximum of 0.06 mg/L. Cancer risk; reproductive & developmental effects. Consider granular activated carbon (GAC) filtration.
Total Trihalomethanes (TTHM) at 1 mg/L exceeds the EPA maximum of 0.08 mg/L. Bladder & rectal cancer risk; reproductive concerns. Consider granular activated carbon (GAC) filtration.
Stage 1 DBP Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Surface Water Treatment Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Lead and Copper Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Haloacetic Acids (HAA5) was detected in this water system. granular activated carbon (GAC) filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
Similar-sized systems in Maine
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
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 | Lead and Copper Rule | Non-health-based | Unaddressed (current) |
| July 1, 2022 | Surface Water Treatment Rule | Non-health-based | Resolved |
| April 1, 2022 | Haloacetic Acids (HAA5) | Non-health-based | Resolved |
| April 1, 2022 | Total Trihalomethanes (TTHM) | Non-health-based | Resolved |
| December 30, 2021 | Stage 1 DBP 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 Trihalomethanes (TTHM) | Disinfection Byproducts | 1 | No |
| Haloacetic Acids (HAA5) | Disinfection Byproducts | 1 | No |
| Stage 1 DBP Rule | Treatment Failure | 1 | No |
| Surface Water Treatment Rule | Treatment Failure | 1 | No |
| Lead and Copper Rule | Treatment Failure | 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 | N/A |
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
Dominant radon zone for ZIP codes served by this system: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
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 the full compliance record 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/
@misc{zipcheckup-water-system-me0091490,
author = {{ZipCheckup}},
title = {{Southwest Harbor Water and Sewer District: 5 EPA Violations}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/me0091490/}
}
What You Can Do
Test your water
Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter →
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.