The LID Center works with municipalities in Prince George’s County, Maryland in various capacities. We partner directly with municipalities to complete green infrastructure projects and studies. We also act as a liaison between the County Department of the Environment (DoE) and municipalities to help implement stormwater and sustainability programs. We often partner with other local organizations to develop and complete projects in municipalities.
Prince George’s County was among the first jurisdictions in Maryland to be issued an MS4 stormwater permit in 1993. The County’s Municipal Separate Storm Sewer System (MS4) Discharge Permit—often referred to as the County stormwater permit—is reissued on a five-year cycle.
Each generation of the permit has required increasing effort to reduce polluted stormwater runoff and improve water quality. The most recent permit was reissued in 2022. Under the County’s current MS4 framework, all municipalities in Prince George’s County—except for the City of Bowie—are covered as co-permittees. Learn more by visiting the County Department of the Environment’s NPDES MS4 Permit page.
These guidebooks were designed to inform municipalities about County and municipal roles in implementing stormwater permit requirements countywide. The guidebooks were originally produced in 2016 through a NFWF-funded grant. The guidebooks were last updated in 2019 to include newer information about stormwater permit requirements and County programs. Guidebook 2 includes guidance for municipalities interested in enhancing their own outreach programs.
The LID Center produced a guide to using readily available online mapping platforms to obtain property and environmental information for planning and discussion purposes. This guide is intended for municipal staff and officials in Prince George’s County, Maryland. It focuses on PG Atlas and the DoE Clean Water Map. PG Atlas is a web mapping application created and maintained by the Maryland-National Capital Park & Planning Commission, Prince George’s County Planning Department, and displays planning, development, environmental and other countywide geographic data. The Clean Water Map is a web mapping application created and maintained by the Prince George’s County Department of the Environment that allows users to view stormwater management projects and other water quality-related information. This guide was developed under a grant from the National Fish and Wildlife Foundation under the Chesapeake Bay Stewardship Fund program.
Click here to access the Prince George’s Atlas.
The County report activities to the Maryland Department of the Environment (MDE) to demonstrate efforts to comply with the stormwater permit requirements each fiscal year. A Supplemental Report documents activities in municipalities that count toward meeting the goals. The LID Center helps gather data about activities and events like cleanups and tree plantings, street sweepings, storm drain cleaning, and any other stormwater-related activities within municipal boundaries. Annual reports are made available via the County’s Department of Environment NPDES MS4 Permit page after being submitted to and reviewed by MDE.




