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Erosion/Sediment Control/ Stormwater Management


1) Reduction of the total amount of impervious surface area within the existing Town limits of Middletown through the use of the latest stormwater management and pervious pavement designs.

2) Continuation of its rain barrel partnership with the Interstate Commission on the Potomac River Basin (ICPRB) and the Chesapeake Bay Trust and investigation of other sustainable stormwater management practices.

3) Reduction of water consumption and wastewater production through enhanced water reuse programs and low-flow technologies.



Clearing or grading land in excess of 5,000 square feet is not permissible without first obtaining approval of an Erosion and Sediment Control Plan from the Frederick County Soil Conservation District. Frederick County also requires developers to submit a “Stormwater Management Plan” with proposed design and calculations for capacities of stormwater drainage systems for any new subdivision or site development. Current stormwater management requirements address both the quantity and quality of stormwater runoff leaving the development site. 

This would reduce stream channel erosion, pollution, siltation, sedimentation, and local flooding.

The goal of stormwater management plans is to manage stormwater by using environmental site design to the maximum extent practicable to maintain after development, as nearly as possible, the predevelopment runoff characteristics. This would reduce stream channel erosion, pollution, siltation, sedimentation, and local flooding. The goal is also to use appropriate structural best management practices only when necessary. This helps to restore, enhance, and maintain the chemical, physical, and biological integrity of streams, minimize damage to public and private property, and reduce impacts of land development.

The Town of Middletown is committed to the environmental health of the Middletown community and continues to take steps to ensure the responsible stewardship of adjacent waterways, wetlands and forests. The Town relies on local waterways and groundwater for the Town's water supply, and strives to protect these water resources through good stormwater practices, wellhead protection area management, illicit discharge elimination, and resource conservation. Through these efforts the Town is working to aid in the restoration of the Little Catoctin Creek and smaller tributaries within the watershed. When possible, infiltration and on-site groundwater recharge practices should take precedence.


The Town asks that citizens report all illicit discharges into the Town's storm sewer system. Illicit discharges include, but are not limited to:

  • chlorinated water

  • oil and grease

  • paint and solvents

  • fertilizer

  • chemicals, detergents, and cleaning agents

  • any other liquids that are not stormwater drainage


These should be reported to Town staff at Middletown Town Hall at (301) 371.6171.


The Town is currently permitted by the Maryland Department of the Environment (MDE) under the Municipal Separate Storm Sewer Systems (MS4) Phase II General Permit for jurisdictions with populations of less than 100,000 individuals. Coverage under this permit or an individual permit from the MDE is required to remain in compliance with the National Pollutant Discharge Elimination System (NPDES) program, administered by the Environmental Protection Agency (EPA).


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