Industrial Wastewater Compliance Assistance

What You Need To Know About Sample Collection and Documentation

DMRs, Monitoring Data, and Maintenance and Operational Logs
File electronically!

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

To report monitoring activity to the Bureau of Materials Management and Compliance Assurance, the Department provides a preprinted DMR to the permittee. The permittee should utilize the DMR Instruction Manual to complete and submit the DMR to the Bureau of Materials Management and Compliance Assurance.

The discharge permit and RCSA Section 22a-430-3(j) require that the DMR include a detailed explanation of any violations of the limitations specified in the permit. The Department encourages the use of a cover letter attached to the preprinted DMR forms as a means of detailing any violations. The cover letter should include the following:
  • what the violation is
  • when the violation occurred including the duration, date(s) and time(s)
  • cause of the violation
  • what corrective action(s) has been taken
  • what is being done to prevent a recurrence of the violation(s)
Permittee Responsibilities
  • Collect, pre-treat and/or discharge wastewater in accordance with the permit, relevant permit application materials and all approvals issued by the Department.
  • Monitor the discharge(s) and report results to the Bureau of Materials Management and Compliance Assurance according to the schedule specified in the permit. The permit specifies the minimum frequency of sampling and the type(s) of samples to be collected. In addition to submitting the DMR, the permittee must maintain at their facility for a minimum of five years a file consisting of copies of all DMRs that the facility has submitted to the Bureau of Materials Management and Compliance Assurance:
DEEP Contacts
Verbal notifications

Water Permitting & Enforcement Division (WPED): 860-424-3025. When outside normal business hours, call 860-424-3338 and then 860-424-3025.

Bypass, Spill or Environmental Emergency:  DEEP Emergency Response and Spill Prevention, 860-424-3338.

Written communications to the WPED

Department of Energy and Environmental Protection (DEEP), 79 Elm Street, Hartford, CT 06106-5127.

Any written communications except those noted below:  Director, Bureau of Materials Management and Compliance Assurance, WPED.

DMR Violations - Permit Limitations

Submit written notification with the next DMR form to:  Bureau of Materials Management and Compliance Assurance, DMR Processing Unit.

How to Maintain Compliance with Your Individual Discharge Permit

Content last updated February 2020