General Permit for Discharges from Tanks, Pipes, Other Containment Structures, Dewatering Activities, and Groundwater Remediation - Maryland General Permit No. 17-HT​​​​​​​

 

 ​NOTICE - Draft Permit Renewal Announcement ​​​

​The 17HT general permit is set to expire on 7/31/2025. The renewed permit, the 25HT, is currently being drafted and the Department anticipates issuance in the second half of 2025. Permit holders that are currently registered under the 17HT will have their registrations administratively extended until issuance of the 25HT, at which time you will receive notices to reapply. The Department will not be processing applications to reapply under the 17HT.  If you are already registered under the 17HT, please make sure your contact information is up to date with the Department so that you may receive notices and updates when the 25HT is open for applications. You may contact john.graff@maryland.gov with any questions or comments regarding the upcoming permit renewal.​

Final Determination​

The Department has made a final determination to issue this general permit.  Beginning on July 15, 2020, the Department will publish notice of the final permit determination in newspapers around the state.  The Department is also publishing notice of the final determination in the Maryland Register on July 17, 2020.  The final determination updates and renews the General Permit for Discharges from Tanks, Pipes, Other Liquid Containment Structures, Dewatering Activities, and Groundwater Remediation (Maryland General Permit No. 17-HT).  The 17-HT permit is effective as of August 1, 2020.  

Registrants under the former 11-HT permit have six months (until February 1, 2021) to submit a renewal Notice of Intent (NOI) to have uninterrupted renewal under the 17-HT.  So long as a timely NOI is submitted, coverage shall continue under the 11-HT until the Department issues registration under the 17-HT.

The 17-HT permit does not provide coverage for oil terminals.  Oil terminals must obtain a discharge permit through the Department's Oil Control Program.  

17-HT Permit Information

The 17-HT general permit became effective on August 1, 2020.

• General Permit No. 17-HT - Full Permit, for Discharges from tanks, pipes, other containment structures, dewatering activities, and groundwater remediation (at facilities other than oil terminals)
• Appendix A - Specific Requirements for Discharge Categories
• Appendix B - Definitions, Abbreviations, and Acronyms

Forms

• DOs and DON'Ts (Most Common Errors from NOIs)​ - recommended to view Prior to Completing your NOI
  
• Notice of Intent (NOI): Form WMA/​MDE/PER.011
• Permit Transfer Request Form WMA/MDE/PER.079
• Notice of Termination (NOT): Form WMA/MDE/PER.005​

Supplemental Information

• Notice of Final Determination
• Response to Comments on Tentative Determination and Informal Comment Period
• Current fee structure in COMAR 26.08.04.09-1 - see section G
• Documents Regarding Use of Chemical Additives
• Standards for Use of Treatment Chemicals for Sediment Control
  
• Request for Cationic Chemical Additives Form
• Procedures for Revie​w of Chemical Additives for Sediment Control
• Maryland List of Pre-Approved Flocculants​​

Contact Info

Previous Permit (11-HT)

Additional Information and Related Links

• MDE Home
• Maryland Water Permit Applications