DEEP: Industrial Wastewater

Industrial Wastewater

{image of factory and water} Industry in Connecticut provides manufactured products and services sold in Connecticut and throughout the world. Wastewater generated from industrial activities can contain pollutants such as BOD (biochemical oxygen demand), suspended solids, nutrients, heavy metals, oils and greases, and other toxic organic and inorganic chemicals.  If left untreated, these pollutants can cause serious harm to the environment. 

The Department of Energy and Environmental Protection (DEEP) regulates the discharge of industrial wastewater to the ground water, surface water, and to sewage treatment plants through permitting programs. Discharge limits and requirements for treatment, monitoring and reporting, designed to protect the waters of the state from pollution, are specified in all permits.

Two types of permits are available for industrial wastewater discharges:

  1. Individual permits are issued directly to an applicant and are customized for a company's activities based on flow and the pollutants contained in the discharge.
  2. General permits cover a specific category of discharge and are issued to authorize similar minor activities by one or more applicants.
   (DEEP Permits and Licenses page for Wastewater Discharges)
New! Four General Permits Extended for One Year from 3/30/2017--3/29/2018 Pursuant to Section 22a-6aa of the Connecticut General Statutes

New! Reissued with Modifications 8/9/2017: General Permit for Miscellaneous Discharges of Sewer Compatible (MISC) Wastewater

Learn more about how to comply with your permit.

Related Information

Prohibition on Acceptance and Treatment of Wastes From Hydraulic Fracturing

Facility and Wastewater Treatment System Modifications Factsheet (in conjunction with
RCSA 22a-430-3(i))

NetDMR Electronic Discharge Monitoring Reporting

Fats, Oils, and Grease (FOG) Model Program

2007 Pretreatment Program Refinement Presentation

List of Connecticut Permitted Waste Transporters

List of Connecticut Publicly Owned Treatment Works (POTWs) Approved to Accept Transported, Non-domestic Wastewaters

Content Last Updated August 18, 2017