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Sanitary Engineering Notice

The Septic System and Water Well Programs are working with reduced services during the COVID-19 pandemic. In an effort to serve the needs of the county residents, the review and approval of permits is being conducted on a limited basis. For more information, call Perc Testing: 410-222-7193, Septic Installations: 410-222-7194 or Water Wells: 410-222-7398.

Wet Season Percolation Testing

2021 Wet Season Perc Testing 

Landscape View of Perc

The Anne Arundel County Department of Health will begin wet season percolation testing on January 4, 2021. Applications for mound sewage disposal systems must be received by March 1, 2021 and testing performed by March 12. During this period, priority will be given to locations where mound testing is expected. All other applications must be received and scheduled by March 31, 2021. Testing is conducted on a first-come, first-served basis.

Sanitarian measure different layers of soil The application and information on perc testing are available ​here or by calling the Bureau of Environmental Health at 410-222-7193. Send completed applications to the Anne Arundel County Permit Center, 2664 Riva Road, Annapolis, MD 21401.

Wet season testing is required for properties located in areas of the county with typically high water table conditions, and the highest water table is usually experienced during February, March and April. Monitoring wells in Anne Arundel County indicate groundwater levels are in the average wet season range. These wells are part of a monitoring well network used by the Maryland Department of Environment to assess groundwater levels. Each year, the Department of Health announces the start of the perc test period once the network wells have groundwater levels acceptable for wet season perc testing.

Testing provides an accurate assessment of a septic system’s ability to work in all seasons. The information provided by site evaluation and perc testing is used to determine the size and type of septic system that can be installed on a specific lot. In some cases, because of adverse soil or groundwater conditions, a property may only be developed when public sewer is available.

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Anne Arundel County Department of Health | 3 Harry S. Truman Parkway Annapolis, Maryland 21401
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