Water Regulating and Discharges

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  • Subsurface Sewage Treatment and Disposal Systems - Septic Systems

    Septic systems treat and disperse wastewater from individual or small numbers of homes and commercial buildings. The type and/or size of the septic system, determines what agency has regulatory authority.

  • 2007 Guidance Document for Design of Large-Scale On-Site Wastewater Renovation Systems

    The Guidance Document for Design of Large-Scale On-Site Wastewater Renovation Systems (OWRS) is intended to provide information and methodologies for the design, construction, operation and maintenance for those wastewater renovation systems which are under the Department’s regulatory authority.

  • CT Stormwater Quality Manual - Errata Sheet

    Errata Sheet for 2004 Connecticut Stormwater Quality Manual

  • Video Tutorial -- General Permit with modifications

    The following tutorial is an overview of the requirements of the General Permit for the Discharge of Stormwater Associated with Industrial Activity, effective October 1, 2011. The video presents general information on permit conditions, control measures, inspections, monitoring, benchmarks, impaired waters requirements, and a discussion of specific requirements for Sector G--Transportation and Public Works Facilities.

  • 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.

  • 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.

  • 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.

  • Sample Collection and Documentation

    If you are required to submit DMRs to comply with an Individual NPDES or Pretreatment permit, you are eligible to file electronically.

  • 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.

  • 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.

  • Regulating Water Usage and Water Discharges

    Regulating Water Usage and Water Discharges

  • 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.