DEEP headquarters at 79 Elm Street in Hartford has partially re-opened to staff and members of the public as of Tuesday, February 3. The DEEP records room has re-opened. The DEEP Central Permit Processing Unit (CPPU) will be open to the public starting on Wednesday, Feb. 4. For updates, click here

Water Regulating and Discharges

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  • Snow Removal Guidelines

    These guidelines have been developed to clarify DEEP recommendations to state and municipal officials, and others regarding the removal and disposal of snow accumulations from roadways and parking lots. For purposes of this guidance snow accumulations refers to snow banks and snowpiles that are removed by front-end loader or by loading on trucks for disposal.

  • Miscellaneous Industrial User (MIU) General Permit Notification for Vehicle Maintenance Wastewater Discharges 

    This page provides specific instructions to former registrants under the Vehicle Maintenance Wastewater general permit on how to complete the Discharge Notification Form to POTW Authority for the General Permit for Discharges from Miscellaneous Industrial Users (MIU GP).

  • Agricultural Wastewater

    Agricultural wastewater generated from a variety of farm activities including animal feeding operations and the processing of agricultural products, can pollute surface and ground water if not properly managed.

  • Flow Proportioned Sample Collection Procedures

    The Regulations require flow proportioning for all daily composite samples. See RCSA Section 22a-430-3(a)(3) for more information. This requirement is often a major area of non-compliance for permittees.

  • Industrial Wastewater Discharge Permit Compliance Information

    How to maintain compliance with your individual discharge permit; a summary of key information and requirements that apply to your permit.

  • Common Violations and How To Avoid Them

    Common industrial wastewater violations and how to avoid them.

  • Industrial Waste Water Contact Information

  • What To Expect From An Inspection

    The Department of Energy and Environmental Protection (DEEP) conducts inspections at permitted facilities throughout the state. Under state law inspectors have the authority to enter your facility at reasonable times to evaluate compliance with your permit and the Water Discharge Permit Regulations of the State of Connecticut.

  • Notification Requirements

    Information regarding when it is necessary to contact the DEEP with permit related issues under CGS Section 22a-430.

  • Charitable Car Wash Guidance

    This guidance was developed for landowners, industrial, commercial and residential property managers; charities, religious, civic and fraternal groups and organizations, public and private schools and educational institutions, municipal officials, and other interested parties regarding fund raising vehicle wash events and effective water pollution control.

  • NetDMR in Connecticut

    NetDMR is a freely available Web-based tool that allows permittees to electronically sign and submit their discharge monitoring reports (DMRs) or stormwater monitoring reports (SMRs) to EPA via a secure internet connection. NetDMR is designed to improve data quality, save paper, and provide cost savings for permittees and regulators.

  • Regulating Water Usage and Water Discharges

    Regulating Water Usage and Water Discharges

  • Industrial Stormwater GP

    The General Permit for the Discharge of Stormwater Associated with Industrial Activity (“Industrial Stormwater General Permit”) regulates industrial facilities with point source discharges that are engaged in specific activities listed in the permit.

  • Industrial Wastewater

    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.

  • Notice of Violation

    If you receive a Notice of Violation, be sure to read the Notice of Violation, make sure you understand its content, and contact the Water Permitting and Enforcement Division if you have any questions.