South Grafton Water District
EPA ID: MA2110001 · 3,262 people served · 2 ZIP codes
While corrective steps may be in progress, South Grafton Water District currently shows 2 EPA violations unresolved — serving a population of approximately 3,262.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for South Grafton Water District Source: EPA SDWIS service area boundaries.
Service area boundary — Grade C
Service Area Demographics
The South Grafton Water District serves a community with a median household income of $126,317 and an estimated 12,652 residents across its service area. Approximately 54% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
South Grafton Water 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.
About 1% of homes in Worcester County, Massachusetts rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Superfund Proximity Note: This service area ranks in the 60th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
Detected Contaminants
How South Grafton Water District compares to EPA limits
What This Means For You
Chlorite at 2 mg/L exceeds the EPA maximum of 1 mg/L. Anemia and nervous system effects in infants and children. Consider ferrous sulfate reduction filtration.
Stage 1 DBP Rule at 2 mg/L exceeds the EPA maximum of mg/L.
Contaminant 1039 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.
PFAS Detected in Service Area
PFAS ("forever chemicals") have been detected in water serving this system's area. 10 detections recorded. 4 exceed federal EPA limits (4 ppt for PFOA/PFOS).
Chlorite was detected in this water system. ferrous sulfate reduction filtration can reduce exposure.
Find a certified water filter →Comparable Water Systems
Similar-sized systems in Massachusetts
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
South Grafton Water District (EPA ID: MA2110001) is a community water system in Massachusetts that serves approximately 3,262 people from surface water sources.
This system provides water to 2 ZIP codes across 2 communities.
Average Home Safety Score: C (64/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Recent Violations
| Date | Contaminant | Type | Status |
|---|---|---|---|
| June 1, 2025 | Stage 1 DBP Rule | Monitoring | Unresolved |
| July 1, 2024 | Surface Water Treatment Rule | Monitoring | Unresolved |
| January 1, 2024 | Chlorite | Monitoring | Resolved |
| October 1, 2023 | Chlorite | Monitoring | Resolved |
| July 1, 2023 | Contaminant 1039 | Monitoring | Resolved |
Contaminants Detected
The following contaminants have been flagged in EPA records for this water system:
| Contaminant | Category | Violations | Health-Based |
|---|---|---|---|
| Chlorite | Disinfection Byproducts | 2 | No |
| Stage 1 DBP Rule | Treatment Failure | 2 | No |
| Contaminant 1039 | Other Violation | 1 | No |
| Surface Water Treatment Rule | Treatment Failure | 1 | No |
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 01560 | 0.0016 mg/L | No | N/A |
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 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 the full compliance record for South Grafton Water District (MA2110001) on EPA.gov.
Frequently Asked Questions
Is South Grafton Water District water safe to drink?
South Grafton Water District has only monitoring/reporting violations, which are procedural in nature. The system meets federal health-based standards.
How many people does South Grafton Water District serve?
South Grafton Water District serves approximately 3,262 people across 2 ZIP codes in Massachusetts.
Where does South Grafton Water District get its water?
The primary water source is surface water.
Lead Service Line Inventory
Utility-reported lead service line presence and tap-sample lead level under federal LCRI requirements:
Below federal action level (0.015 mg/L)
MassDEP reports utility-level presence flag and tap-sampling without per-line breakdown. Customers should inquire with the utility about service line material at a specific address.
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: MassDEP LCRR Service Line Inventory · Submitted 2024
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.
Frequently Asked Questions
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
South Grafton Water District (EPA ID: MA2110001) — request the latest Consumer Confidence Report or ask about specific contaminants.