Laserfiche WebLink
Project and regulatory objectives, description, and assumptions <br />Alternatives analysis comparing various compliance and implementation options including: <br />o Granular activated carbon (GAC) <br />o Ion exchange (IX) <br />o Reverse osmosis (RO) and nanofiltration <br />■ Reject stream management <br />o Source water blending <br />■ Unlikely assuming ND treatment goals <br />o Well relocation and treatment system centralization <br />• Design criteria evaluation <br />o Hydraulic evaluation <br />■ Fixed speed vs VFD well pumps <br />■ Need for booster pumps <br />■ Additional pressure losses <br />o Treatment evaluation <br />■ Sand separator for "sanding" wells <br />■ Cartridge filtration (appropriate micron size), IX vessels <br />• Site layouts for each well site <br />o Treatment equipment layout and piping <br />o Flush water management and drainage <br />o Truck access <br />o Emergency generator <br />• Expected O&M activities <br />o Ongoing maintenance <br />o Media change out <br />o Waste management <br />• System integration <br />• Cost estimates <br />o Capital cost <br />o O&M costs including price escalation comparison between GAC and IX <br />o Waste management costs <br />o Land acquisition <br />• Permitting <br />o DDW, OCFCD, CEQA <br />• Project timeline, phasing schedule, and construction duration <br />Deliverables <br />1. Draft Planning Study (Electronic, pdf format). <br />2. Final Planning Study (Electronic, pdf format). <br />Task 2 - 10% Design <br />The EEC Team will prepare a Draft Preliminary Design Report (PDR) based on the Planning Study. The Draft PDR will <br />serve as a 10% design submittal package. Drawings will be prepared using AutoCAD format. Drawings will be set up with <br />22" x 34" format for submittal and can be reduced to half scale I V x 17" size for bidding purposes. The 10% design is <br />anticipated to contain the following information: <br />• Project objectives and description <br />• Summary of the Planning Study <br />• Design criteria <br />• Facility layout with alternatives, if applicable <br />EEC Environmental 15 November 17, 2022 <br />