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MS4 Stormwater Permit Inquiry
DEP is the lead department coordinating a multi-department/agency response to meet the requirements of the stormwater permit issued to the County by Maryland Department of the Environment (MDE). The permit is a key driver of the County's strategic watershed management program. For more information about the permit terms issued by MDE and to learn how the County will be implementing the permit, visit the DEP URL links.
Find more information from the following link(s):
  • Stormwater Regulations
  • Watershed Restoration Implementation Strategy


  • To speak with a Customer Service Representative, please call 311 during business hours.