Industrial Wastewater

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• 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).

• Common Violations and How To Avoid Them

  Common industrial wastewater violations and how to avoid them.

• 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.

• Notification Requirements

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

• 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.

• 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 Waste Water Contact Information

• 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.

• 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.

• Pretreatment Program

• 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.

• 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.

• Pretreatment Compliance Assistance

  Compliance Assistance for Industrial Pretreatment Permits

• General Pretreatment Permit for Non-Significant Industrial User Discharges to Publicly Owned Treatment Works (Non-SIU GP)

• General Pretreatment Permit for Significant Industrial User, Dewatering, and Remediation Discharges (SIU GP)