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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.

Effective June 22, the department will expand percolation testing beyond the repair of failing onsite sewage disposal systems, currently being performed. Perc tests for additions and new construction will resume, as well as site inspections for limited home additions and verification of existing systems.

For properties that submitted a perc application before April 1, 2020, call the Sanitary Engineering Program at 410-222-7193 to verify if the planned perc test is wet season restricted. Scheduling testing is the responsibility of the applicant or owner, who should contact the sanitarian serving their property’s location. Area sanitarian phone numbers are available at Perc Testing Areas.

Wet Season Percolation Testing

Last updated: June 18, 2020

2020 Wet Season Perc Testing 

Landscape View of Perc

The Anne Arundel County Department of Health began wet season percolation testing on February 18, 2020 and all applications were received and testing scheduled by March 31, 2020. Testing was 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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