2018-04-24_WASD LEACH FIELD-fullsize-signed_REDUCED.pdf

This is a set of engineering drawings and specifications for septic system improvements at Whiteford Agricultural Schools in Ottawa Lake, Michigan, prepared by OHM Advisors and approved by the Monroe County Health Department in April 2018. The project involves installing a new septic system including tanks, pump chamber, distribution system, and disposal field zones. The drawings detail the construction of four disposal field zones, equalization/pump chamber tank, monitoring ports, and associated piping and components.

The technical specifications include tank installation requirements, disposal field construction guidelines, and system flow calculations showing daily flows of 2,345 gallons with a total equalization storage volume of 10,023 gallons. The disposal field design includes distribution pipes, clean-outs, monitoring ports, and specific requirements for materials like natural filter stone and perforated pipe. The drawings provide detailed cross-sections and plan views of all system components, with precise measurements and installation specifications that must be followed by the contractor. An enlarged site plan shows the location of existing structures and the new septic system components on the school property.