June, 2017, Welcome to Septic Tank Services in Lancaster Pa. John Kline Septic Services provides residential septic tank cleaning services in Lancaster, Lebanon, York and Dauphin counties. All of our technicians are PSMA certified inspectors to perform real estate septic tank treatment assessments and township septic tank inspections, as well as small Septic Repairs and Pumping Diagnostics. Let us take care of all your sewage and waste disposal needs. We are now offering Restaurant Grease Trap Cleaning for the Commercial food industries. Hydraulic Load Testing, technician then measures and records the water level in the waste water absorption area.