Excavator truck digging a trench

All properties are either served by public sewer or a private septic system as its means of wastewater disposal. Properties that are ineligible for public sewer service must complete satisfactory water table tests and percolation or sand mound testing to establish a sewage disposal area on the property before it can be considered buildable.

🆕 The 2025 Wet Season is now closed. Applications may be submitted anytime for the 2026 Wet Season. 

Percolation Testing Requirements for Deep and Shallow Systems
Percolation Testing Expiration Policy 
Appeal Rights for Permit Denials
Montgomery County Soil Map Units
Guidelines for Percolation Testing

4

On-Site Evaluation and Testing

How it Works

Pay Online

Fee Schedule