TABLE OF CONTENTS Materials for private sewage systems must meet minimum standards as set forth by the code used by local jurisdictions. A manufacturer s mark or name and the quality of the product or identification must be cast, embossed, stamped, or indelibly marked on each material used in an installation. Septic tanks must be marked to identify the tank s capacity.
Any materials used in an installation must be of an approved type. Professional and protective handling of materials is required during the installation of materials. Defective or damaged materials may not be installed.
All septic tanks installed must be in compliance with the local code requirements. Steel septic tanks that show any damage to the bituminous coating must be repaired by recoating the tank. The gauge of the steel must conform with local code requirements. Fiberglass tanks may be used, but they must also meet local code requirements.
Concrete tanks may be precast or built on site. When a concrete tank is built on site, the floor and sidewalls of the tank must be monolithic, except that a construction joint is permitted in the lower 12 inches of the sidewalls of the tank. The construction joint must have a keyway in the lower section of the joint. The width of the keyway must be approximately 30 percent of the thickness of the sidewall with a depth equal to the width. A continuous water stop or baffle at least 56 inches wide must be set vertically in the joint, embedded one-half...
