On-Site Septic System Information (Septage Hauler list) (Ordinance #220 pertaining to OLDS) Maintenance Guidelines (& financial Assitance) DEP Homeonwer's Guide On-lot SepticMaintenance SEO Here's an overview of what you need to do to operate and maintain your system for maximum efficiency and long life. Pump tank regularly. Conserve water and spread usage over a period of time. Manage solids. Keep hazardous materials out. Let the system work naturally. Avoid drainfield compaction. Avoid introducing excess water to the drainfield. Maintain structural integrity of the drainfield.