Emergency Burn Ban In Effect 10/26/24 - An emergency burn ban is now in effect for all Connecticut State Parks, Forests, and Wildlife Management areas, prohibiting the use of all outdoor grills, firepits, and campfires, and the kindling and use of flame outdoors. DEEP and local agencies are working to contain several active fires across the state. Please avoid all affected State Parks and Forests, as well as the blue-blazed Mattabesett Trail. The Enduro Trail in Voluntown and portions of North Stonington within the Pachaug State Forest are closed at this time. Please note that today's forest fire danger report remains at an 'extreme' level. More information about the current fire danger, burn ban and recommended safety measures can be found here


Water Discharge Permits and General Permits

Emergency or Temporary Discharge AuthorizationPermit Applications for Wastewater Discharges | Supporting Documentation for Wastewater Discharge Permits | General Permits | Stormwater General Permits 

Emergency or Temporary Discharge Authorization

Emergency or Temporary Discharge Authorization
Permit Type and Related Information Application
Forms
Instructions Last Revised  Required Common Forms
and Other Related Forms

Emergency or Temporary Discharge Authorization - see notes below 

 Word

PDF

NA

04/01/24 
 
 Notes: If the discharge is composed solely of groundwater remediation wastewater and is discharged to a sanitary sewer or to surface water, the discharger must file for authorization under the General Permit for the Discharge of Groundwater Remediation Wastewater (unless there is insufficient flow in the receiving water to meet the dilution requirements in the general permit for discharges to surface water). 

If the discharge is to groundwater and is associated with insitu remediation, the discharger must file for authorization under the Application for Emergency or Temporary Authorization to Discharge to Groundwater to Remediate Pollution. (instructions) For further information on other Remediation Permits refer to:  Land Use Permits and General Permits (ct.gov).

 

Individual Permit Applications for Wastewater Discharges

There are four main individual wastewater permit applications which include discharges from Agricultural Activities, Domestic Sewage Treatment Works, Subsurface Sewage Treatment and Disposal, and Manufacturing, Commercial and Other Activities. Depending on your proposed wastewater discharges, you will need to use one of the four main forms listed below and you will also need to download one or more of the supporting documents listed further below. Review the applicable main instructions for a summary of which supporting documents and attachments must be submitted for each type of discharge.

Individual Permit Applications for Wastewater Discharges
Permit Type and Related Information Application
Forms
Instructions Last Revised Required Common Forms
and Other Related Forms
Domestic Sewage Treatment Works
(For municipal and private sewage treatment facilities discharging to surface waters)
*
*
*Refer to Municipal Wastewater for more detail
Manufacturing, Commercial, and Other Activities

Word

PDF

PDF

application: 10/01/13;
 
instructions: 12/13/16
(updated testing requirements for steam electric power plants in Schedule A)
Wastewater Discharge Permit Application Checklist Word PDF
 

Facility and Wastewater Treatment System Modifications:

Fact sheet
Instructions,
Application Word PDF
Checklist:  Word PDF

Subsurface Sewage Treatment and Disposal

Word

PDF

PDF

application and instructions: 09/16/19; updates to program name and NDDB
Related Guidance and Other Information

Fact Sheet

Water Discharge Permit Compliance Information Package

Common Errors and Omissions

Discharge Monitoring Report Instruction Manual

Supporting Documentation for Individual Wastewater Discharge Permits

Note: Depending on your proposed wastewater discharges, you will need to use one of the main forms listed under Individual Permit Applications for Wastewater Discharges and you will also need to download one or more of the supporting documents listed below. Review the applicable main instructions for a summary of which supporting documents (attachments) must be submitted for each type of discharge. Instructions for each of the supporting documents are included with each of the corresponding main instructions listed above.

Supporting Documentation for Individual Wastewater Discharge Permits

Attachment Name Forms Last Revised

Attachment A: Executive Summary (DEEP-WPED-APP-101)

Word

PDF

10/01/13

Attachment B: Applicant Background Information (DEEP-APP-008)

Word

PDF

06/12/12

Attachment C: Applicant Compliance Information (DEEP-APP-002)

Word

PDF

08/08/11

Attachment D: USGS Quadrangle Map and Latitude and Longitude (DEEP-APP-003)

Word

PDF

08/08/11

Attachment E: Coastal Consistency Review Form (DEEP-APP-004)

Word

PDF

08/08/11

Attachment F: Copy of the NDDB Determination response letter that has not expired, if applicable. Include a copy of any mitigation measures developed for this activity and approved by NDDB.

N/A
N/A

Attachment G: Conservation or Restriction Information

No DEEP form
N/A

Attachment H: Copy of the Written Environmental Justice Public Participation Plan Approval Letter

N/A
N/A

Attachment I-1: Site Plans and Floor Plans

No DEEP form
N/A

Attachment I: Operation and Maintenance of Collection and Treatment Systems - Description, Plan Checklist and Certification (DEEP-WPED-APP-103)

Word

PDF

10/01/13
Attachment J: Solvent Management Plan (DEEP-WPED-APP-104)

Word

PDF

10/01/13

Attachment K: Spill Prevention and Control Plan, Plan Checklist and Certification (DEEP-WPED-APP-105)

Word

PDF

10/01/13
Attachment L: Resource Conservation Strategies (DEEP-WPED-APP-106)

Word

PDF

10/01/13
Attachment M: Line Drawing and Process Flow Diagram
No DEEP form
N/A

Attachment N:  Description, and Plans and Specifications of Collection, Treatment and Disposal Systems

No DEEP form
N/A
Attachment O: Discharge Information (DEEP-WPED-APP-107)

Word

PDF

10/01/13

Attachment P: Sewage Sludge Information for Domestic Sewage Treatment Facilities (DEEP-WPED-APP-108)
(includes Summary Sheet of Industrial and Commercial Non-hazardous Waste hauled to Water Pollution Control Facilities - formerly Attachment V)

Word

PDF

10/01/13

Attachment Q: Engineering Report for Subsurface Sewage Treatment and Disposal Systems

No DEEP form
N/A

Attachment R: Checklist for Solid Waste Disposal Areas (DEEP-WPED-APP-110A)

Word

PDF

08/17/11
Attachment S: Agricultural Activities (DEEP-WPED-APP-111)

Word

PDF

10/01/13

Attachment T: Concentrated Aquatic Animal Production Facilities (DEEP-WPED-APP-112)

Word

PDF

10/01/13

Attachment U: Community Sewerage Systems (Sample letter)

Word

PDF

09/27/12

Attachment W: Renewal of an Existing Permit or Other Discharges Previously Licensed by DEEP (DEEP-WPED-APP-102)

Word

PDF

10/01/13
Attachment X:  Certification Regarding Submittal of Previously Approved Documents  (DEEP-WPED-APP-102A)

Word

PDF

10/01/13

 

General Permits

General Permit and Other Related Information Registration
Forms
Instructions Last Revised Required Common Forms and Other Related Forms
Violation Form

Word

PDF

N/A  03/15/18 N/A
 
Re-Issued0 3/15/2023
Effective 4/1/2023

Word

PDF

PDF

08/23/21
updated mod fee and links

Concentrated Animal Feeding Operation (CAFO)

Issued:  12/06/2022
Effective 01/01/2023

Fact Sheet

Word

PDF

 PDF  12/20/2022  

Domestic Sewage

Effective Date 10/09/2022

Fact Sheet

Word

PDF

N/A 10/09/22
N/A
Issued 10/05/2015

Fact Sheet
N/A N/A 10/05/15 Note: No Registration Required

Groundwater Remediation Wastewater

Issued 02/17/2023

Effective: 03/01/2023

Expiration:  03/01/2025

Fact Sheet

Word

PDF

09/18/23

11/23/21-no updates to registration form or instructions; the Notice of Termination was updated; 09/18/23-added fee waiver for brownfields to reg/inst

Approval for Connection/Transport to a POTW Word PDF
Aquatic Toxicity Monitoring Report
Discharge Monitoring Report Form
Violation Form Word PDF
Notice of Termination Form Word PDF

Miscellaneous Industrial Users (MIU GP)

Issued 09/29/20

Effective Date:  10/31/20

Fact Sheet

Word

PDF

PDF

 

09/29/20 

Attachment A: Word, PDF / Instructions

Attachment B: Word, PDF / Instructions

Attachment C: Word, PDF / Instructions

Attachment D: Word, PDF / Instructions

Nitrogen Discharges

Issued 01/01/2016

Fact Sheet

N/A N/A

01/01/16

Note: No Registration Required

Re-Issued:10/22/2024

Expires: 10/21/2029

Notice of Issuance Fact Sheet

Response to Comments

List of General Permits Fact Sheet

 

Word

PDF

 
N/A
 10/22/24 

Significant Industrial Users (SIU GP)

Issued 10/30/2020

Effective 10/31/2020

Fact Sheet

 Word

PDF

PDF 

 09/18/23

02/05/21-SIU GP Registration Form and Instructions have been revised to add information about the Discharge Analysis/Screening in Part 12.c in Attachment F and 9/18/23- identify modification fee.

 

Updated Attachment F

Coastal Consistency Review Form 

 

Subsurface Disposal Systems

Re-Issued October 13, 2021

Fact Sheet

 Word

PDF

 N/A 10/13/21  Coastal Consistency Review Form

Natural Diversity Database Review

Swimming Pool Wastewater

Reissue Date: 07/10/2024

Effective Date:  08/01/2024

Expiration Date:  07/31/2029 

Fact Sheet

N/A N/A      

Stormwater General Permits

*Effective January 20, 2016  - DEEP's ezFile on-line system should be used to submit stormwater construction and industrial general permit registration(s).  Please refer to the Construction Stormwater page or the Industrial Stormwater page for details on using ezFile.

Stormwater General Permits

General Permit Type and Other Related Information Registration Forms Instructions Last Revised Required Common Forms and Other Related Forms
Stormwater Associated with Commercial Activity

Reissued without Modifications: 09/29/2023
Effective Date:  10/01/23
Expiration Date:  09/30/25

List of General Permits Fact Sheet

 Word

PDF

 N/A  09/29/23  

Stormwater Management Plan

Word PDF

Stormwater and Dewatering Wastewaters from Construction Activities

Modification Date: November 25, 2022

Issued: December 21, 2020;
Effective Date: 12/31/2020

 Submit a Construction Stormwater Registration    

Fisheries Consultation Form
Word PDF
Stormwater Pollution Control Plan Review Checklist Word PDF

Coastal Manangement Determination Form Word PDF

Attachment C: Threatened and Endangered Species Word PDF

Notice of Termination - Non-Solar Projects Word PDF

Notice of Termination - Solar Projects Word PDF

Reissued As Is with an effective date of October 1, 2021. Expires September 30, 2024. No renewal registration is required.

See note above*

 Submit an Industrial Stormwater Registration  Status of Industrial Stormwater General Permit Registrations

Status of No Exposure Certifications
 
 
 
Reissued without Modifications: 09/29/2023
Effective Date:  10/01/23
Expiration Date:  09/30/25
 

 Word

PDF

 N/A  01/11/17

 Related Forms: MS4 Annual Report Transmittal Form

Word

PDF

 
Issued 05/24/2018 
effective 07/01/2019 
 N/A  N/A    N/A