Percolation Tests

Percolation (PERC) testing is required for any property that is not going to be served by public sewer and before any on-site sewage disposal system can be installed. If you plan to build on undeveloped property in Prince George's County and your property is unable to be served by public sewer, you must apply to the Prince George's County Health Department to conduct PERC testing.


Update 04/14/2023

Wet season percolation (PERC) testing for Prince George’s County will be closing on 4/21/2023 due to soil saturation levels.

Test Tube


Application processing is handled on a first-come, first-served basis. through the online Momentum portal. For a percolation test to be conducted, an application must be submitted and the associated lot fee , plus a 5% technology fee, must be paid. 

No tests will be conducted until the application has been submitted and processed. Percolation testing applications that were previously received by the Health Department will not be acceptable for this wet season. Reapplication is not needed unless additional lots are being tested that were not indicated in the previous applications.

Contact Environmental Health / Disease Control Division


9201 Basil Court
Suite 318
Largo, MD 20774