197 West St, Medfield, MA 02052 · Norfolk County · Publicly Owned Treatment Works
Medfield Wastewater Treatment Facility is a publicly owned wastewater treatment works in Medfield, Norfolk County, Massachusetts treating an average of 0.77 million gallons per day, serving about 8,870 residents. It discharges under NPDES permit MAG590008 (effective), which expires in October 2027, with 664 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in September 2022.
10 treatment structures and unit processes identified at Medfield Wastewater Treatment Facility.
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See the full treatment train at Medfield Wastewater Treatment Facility: structures, unit processes and planned upgrades, with exact unit counts.
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Federal civil enforcement cases, compliance inspections and informal actions recorded for Medfield Wastewater Treatment Facility in EPA's ICIS system.
Latest case · Sep 2022
MEDFIELD
Administrative order · CWA, NPDES Permit Violations · Final Order Issued · Compliance actions $156,000
Source: EPA ECHO, civil enforcement case 01-2022-2026.
Full case history with a free Klarifi account
Every action against Medfield Wastewater Treatment Facility with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
14 verified contacts for Medfield Wastewater Treatment Facility, with validated emails and direct phone numbers.
Unlock 14 verified contacts (11 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Medfield Wastewater Treatment Facility, plus the full compliance history and discharge data.
Norfolk · 4 mi away
0.21 MGD
Wayland · 12 mi away
0.03 MGD
Marlborough · 14 mi away
2.77 MGD
Westborough · 17 mi away
4.86 MGD
Marlborough · 18 mi away
1.58 MGD
Uxbridge · 18 mi away
0.9 MGD
Hudson · 18 mi away
1.33 MGD
Concord · 19 mi away
0.83 MGD
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed October 26, 2026; facility record last updated September 23, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Filter press · FOG · all terms