667 Simonds Rd, Williamstown, MA 01267 · Berkshire County · Publicly Owned Treatment Works
Hoosic Wastwater Treament Plant is a publicly owned wastewater treatment plant in Williamstown, Berkshire County, Massachusetts treating an average of 3.26 million gallons per day against a permitted design capacity of 6.5 MGD, serving about 22,403 residents. It discharges under NPDES permit MA0100510 (effective), which expires in December 2028, with 2 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in October 2003.
12 treatment structures and unit processes identified at Hoosic Wastwater Treament Plant.
Available with a free Klarifi account
See the full treatment train at Hoosic Wastwater Treament Plant: 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 Hoosic Wastwater Treament Plant in EPA's ICIS system.
Latest case · Oct 2003
HOOSAC WATER QUALITY DISTRICT
Judicial case · CWA, NPDES Discharge without a Permit · Final Order With Penalty · Penalty $100,000 · Compliance actions $4.8M
Source: EPA ECHO, civil enforcement case 01-2000-0226.
Full case history with a free Klarifi account
Every action against Hoosic Wastwater Treament Plant with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
1 verified contact for Hoosic Wastwater Treament Plant, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Hoosic Wastwater Treament Plant, plus the full compliance history and discharge data.
Monroe Bridge · 14 mi away
0.0095 MGD
Pittsfield · 22 mi away
9.85 MGD
Shelburne · 26 mi away
0.15 MGD
Lenox · 26 mi away
0.5 MGD
West Stockbridge · 29 mi away
0.02 MGD
Lee · 31 mi away
0.58 MGD
Stockbridge · 31 mi away
0.16 MGD
Deerfield · 33 mi away
0.08 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 May 19, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Filter press · FOG · all terms