"House Bill 987"(PDF). Annapolis, MD: Maryland General Assembly. Effective July 1, 2012.
montgomerycountymd.gov
For example, the "Water Quality Protection Charge" in Montgomery County, Maryland is calculated based on the amount of impervious surface area on a property. Different rates are established for detached houses, multifamily homes, non-residential properties, and agricultural properties. A credit is available for properties that have implemented stormwater management facilities or practices. ("About the Water Quality Protection Charge". Department of Environmental Protection. Rockville, MD: Montgomery County Government. Retrieved 2024-01-24.)