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Home > Greening Rockville > Environmental Regulations > Stormwater Regulations

Sustainable Rockville


Stormwater Regulations


Stormwater Ordinance Adopted

The Mayor and Council adopted on June 7, 2010 revisions to Chapter 19 of the Rockville City Code, Sediment Control and Stormwater Management in a 4-0-1 vote. Mayor Phyllis Marcuccio abstained.

Rockville's newly revised stormwater ordinance requires developers to use environmentally friendly planning techniques that reduce the amount of impervious cover and preserve natural resources. Developers must also install low impact stormwater management systems such as rain gardens and bio-retention areas to treat rainwater where it falls by letting it soak into the ground. Only after using these environmentally friendly design techniques may a developer consider installing a traditional stormwater facility like a retention pond.

The adoption of these changes was the culmination of a year long process to implement the Maryland Stormwater Management Act of 2007. The Maryland Department of the Environment reviewed and approved the City's proposed ordinance. The new ordinance became effective upon adoption.