The City of Manchester's Pretreatment Program protects the municipal wastewater infrastructure and water quality by regulating industrial and commercial discharges. Local businesses must comply with ordinances regarding high-strength sewage and grease traps to prevent fats, oils, and grease (FOG) from clogging the sewer collection system.

Key Program Components & Requirements

  • Commercial FOG Program:Restaurants and food service establishments are required to install, maintain, and regularly pump properly sized grease interceptors/traps. Program guidelines ensure these devices reduce wastewater strength prior to discharge.

  • Industrial Discharge Permitting:Facilities that discharge non-domestic, potentially hazardous wastewater into the sanitary sewer are governed by City wastewater ordinances. Permits ensure strict pollutant limits are met before processing at Publicly Owned Treatment Works (POTWs). 

  • Inspections & Compliance:City inspectors actively monitor commercial and industrial facilities to check chemical inventories, review operations, and verify that pretreatment equipment is continuously working. 

No Wipes in the Pipes


Flush Responsibly

Flush Responsibly PSA