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SPECIFICATION <br />SEPTIC TANK <br />1. Septic tank shall comply with the San Joaquin County Onsite Wastewater Treatment System <br />Standards, dated January 2017. <br />2. Septic tank volume shall be at least 4,200 gallons. <br />3. Septic tank shall be constructed of pre -cast concrete with a compressive strength not less than <br />2,500 pounds per square inch. <br />4. Septic tank lid shall support at least 300 pounds per square foot at a maximum soil depth to top <br />of lid of 3 feet. <br />5. Septic tanks shall have a minimum of two (2) compartments. The inlet compartment of any <br />septic tank shall not be less than two-thirds (2/3) of the total capacity and length of the tank. <br />Access to each compartment shall be provided by a manhole twenty-two (22) inches in <br />minimum dimensions, one of which shall be located over the inlet and one over the outlet. <br />6. The recommended liquid depth of the septic tank shall be 4 Meet with a maximum depth of six <br />(6) feet. The length of the septic tank shall be at least two (2) times the width. The air space ab <br />ove the liquid depth shall be eight (8) inches. There shall be a clearance of two (2) inches betwe <br />en the cover and all partitions and baffles or a two (2) inch ventilation hole. <br />7. Septic tank shall be watertight. <br />8. Septic tank manufacturer shall be Jensen Precast or equal. <br />Submit the following materials: <br />1. Drawings showing the layout and size of the septic tank demonstrating compliance with these <br />specifications. <br />2. Structural calculations. <br />3. Concrete compressive strength. <br />