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Percolation Testing and Request for Results


All properties are either served by public sewer service (provided by WSSC) or a private septic system as its means of wastewater disposal.  Before a property can be considered 'buidable' by Department of Permitting Services, the property must either be confirmed as servicable by WSSC or satisfactory percolation testing must be completed to establish a sewage disposal area to serve the property. 

Please refer to the Percolation Test procedure for more details on the process by which testing is conducted. 

Request Percolation Test Results

If you wish to file a request for percolation test results for a specific property located in the County, please submit a completed Request for Percolation Test Results to DPS Well and Septic section.

Application to Conduct Testing

If you wish to file an application to conduct percolation testing, please refer to the Guideline for Well and Septic Permit Application and the Application for Well and Septic Permit/Services.  Please be advised that the property owner (or applicant) is responsible for securing the services of a qualified engineer to prepare a complete plan to submit an application package for testing.  The property owner (or applicant) is also responsible for securing the services of a qualified contractor to prepare all test sites for evaluation.

Contact Information 

For answers to property specific questions relative to percolation testing, please refer to the Well and Septic Plan Reviewer Map to obtain contact information for the appropriate plan reviewer.  To confirm the Well and Septic inspector for a specific property in the County, please refer to the Well and Septic Inspector Map.