Existing System Evaluation

Existing System Evaluations are done to determine the location, size of all components of the septic system and if the system is currently functioning adequately.  These evaluations are usually done on older systems which predate permitting requirements.

Additionally, sand filters and alternative treatment technology (ATT) systems require an Existing System Evaluation to determine whether these systems are being maintained and functioning properly.

File Review is required when new, non-habitable structures are added to a property or an addition is built onto an existing structure, not including bedrooms. 

Forms and Applications

The following forms are available to download either individually or as a packet:

• Existing System Instructions or File Review Instructions
• Application
• Authorization of Representative
• Sample Plot Plan
• System Design
• Tables (Minimum Separation Distances and Quantities of Sewage Flow)
• Existing System Packet
• File Review Packet