Southwest Michigan Regional Sanitary Sew
EPA ID: MI0003726 · 26,780 people served · 7 ZIP codes
ZipCheckup's reading of EPA SDWIS for Southwest Michigan Regional Sanitary Sew (MI0003726): 1 unresolved EPA violation on record. 1 open EPA finding remain on record at Southwest Michigan Regional Sanitary Sew - the utility supplies approximately 26,780 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Southwest Michigan Regional Sanitary Sew Source: EPA SDWIS service area boundaries.
Service area boundary - Grade A
Service Area Demographics
The Southwest Michigan Regional Sanitary Sew serves a community with a median household income of $75,064 and an estimated 86,051 residents across its service area. Approximately 69% 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 Michigan Regional Sanitary Sew'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.
Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points. Surface water sources near wastewater outfalls may face additional treatment challenges.
Superfund Proximity Note: This service area ranks in the 80th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
Detected Contaminants
How Southwest Michigan Regional Sanitary Sew compares to EPA limits
What This Means For You
Stage 2 DBP Rule at 1 mg/L exceeds the EPA maximum of mg/L.
Comparable Water Systems
Similar-sized systems in Michigan
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 Michigan Regional Sanitary Sew (EPA ID: MI0003726) is a community water system in Michigan that serves approximately 26,780 people from surface water sources.
This system provides water to 7 ZIP codes across 7 communities.
ZIP-Area Home Safety Context: A (96/100)
This is the average Home Safety Score for 3 of 7 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.
Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.
Violation History
Status breakdown for accepted records with record years 2021-2026: 0 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 |
|---|---|---|---|
| July 2, 2025 | Stage 2 DBP Rule | Non-health-based | Unaddressed (current) |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Stage 2 DBP 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 |
|---|---|---|
| 0.0011 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 3 (Low Risk)
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 MI or modeled from parcel and building-footprint data.
- 49022 - Benton Harbor
- 49085 - Saint Joseph
- 49101 - Baroda
- 49103 - Berrien Springs
- 49106 - Bridgman
- 49125 - Sawyer
- 49127 - Stevensville
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Southwest Michigan Regional Sanitary Sew (MI0003726) on EPA.gov.
Frequently Asked Questions
Is Southwest Michigan Regional Sanitary Sew 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 Michigan Regional Sanitary Sew serve?
Southwest Michigan Regional Sanitary Sew serves approximately 26,780 people across 7 ZIP codes in Michigan.
Where does Southwest Michigan Regional Sanitary Sew get its water?
The primary water source is surface water.
Federal UCMR5 PFAS Monitoring: Tested Clean
This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). No PFAS compounds were detected.
Current MCL reflects the lowest state-enforceable limit (NYS 10 ppt for PFOA/PFOS, effective August 2020). The federal final MCL of 4 ppt for PFOA/PFOS (EPA April 2024 rule) is not enforceable until April 2029. Detections above 4 ppt but below 10 ppt are below current MCL but above the future federal limit.
Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) — per-system federal sampling, 2023–2025. EPA UCMR5 monitoring program →
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Southwest Michigan Regional Sanitary Sew: 1 EPA Violation. https://zipcheckup.com/water-system/mi0003726/
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title = {{Southwest Michigan Regional Sanitary Sew: 1 EPA Violation}},
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url = {https://zipcheckup.com/water-system/mi0003726/}
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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 Michigan Regional Sanitary Sew (EPA ID: MI0003726) - request the latest Consumer Confidence Report or ask about specific contaminants.