Specifications include, but are not limited to: 1.See attached Operational Approval Request( Attachment #1) for the drain field upgrade for the Willow Community Center, December 2012. Note that a separate project constructed a geothermal heating system for the Willow Community Center. The heat loops were placed in the ground in the area where the abandoned septic drain field was located that drained the Willow Community Center. 2.See attached Geotechnical Investigation (Attachment #2) for PSB #12-1, December 2016. 3.See attached drawings showing a future addition to be constructed on the existing station 12-1, (Attachment #3), dated October 2018. Future dorm rooms are to be included in the addition. The septic system is to accommodate future flows from these rooms. The septic system to be constructed under this contract is to be outside the building footprint of the building expansionshown in these drawings. 4.The contractor is to provide all engineering required for this system upgrade. If it is determined that this system will require AK DEC plan approval, the contractor is to seek DEC approval to construct and DEC approval to operate. 5.A pre-bid will be held on site on July 8, 2020 @ 10:00 AM. Prospective bidders are highly encourage to attend.6.All work shall be completed by September 30, 2020.