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A Page 5 PC South — Approval of Contract for Construction BCC Meeting — July 16, 2013 July 8, 2013 Attachment H and a sample construction contract with Felix Associates is presented as Attachment I. The Engineer's Opinion of Probable Construction Cost for the pipeline bid was $1,640,000. The pipeline construction contract will be administered by Division of Utility Services with assistance from Kimley-Horn and Associates. C. Direct Purchase of Certain PC South Equipment The PC South project includes several major pieces of equipment that the County may directly purchase to avoid payment of sales tax. The costs are summarized in Table 3. Table 3 — Direct Purchase Equipment Costs Direct purchasing the above equipment will result in an estimated state sales tax savings of $75,206.60. The manufacturers for the first three items were selected because similar equipment from these manufacturers is installed at Egret Marsh (Xylem/Flygt and Duperon) and PC Main Screening System (Duperon). The similar equipment works properly and staff is intimately familiar with its operation. Standardization of major equipment will increase the efficiency of staff operational, maintenance, and repair efforts. Another direct purchase item was also considered: a Duperon 2 mm diameter perforated plate screen ($432,000) for the PC South headworks structure. The perforated plate was intended to remove small particles pumped into the facility from the South Relief Canal. However, staff does not believe the perforated plate's benefit justifies its cost. Staff will delete the perforated plate from the project and redesign the headworks structure, maximizing its ability to settle solids for periodic removal by vacuum truck. 5 F:\Public Works\KeithM\Stormwater Projects\PC South Construction\Agenda Items\Agenda - PC South Recommendation of Bid 181 Award for Construction.doc Direct Corresponding Item Description Vendor Purchase Attachment Amount 1 South Relief Canal pumps Xylem/Flygt $470,806.00 Attachment J and controls stem 2 Pump Station No. 1 Xlyem/Flygt $212,574.00 Attachment J pumps and controls stem Self-cleaning bar screen Duperon 3 for the South Relief Canal Corporation $191,000.00 Attachment K pump station Self-cleaning harvest rake To Be $200,000 N/A 4 for PC South Determined estimated TOTAL DIRECT PURCHASE PRICE $1,074,380.00 Direct purchasing the above equipment will result in an estimated state sales tax savings of $75,206.60. The manufacturers for the first three items were selected because similar equipment from these manufacturers is installed at Egret Marsh (Xylem/Flygt and Duperon) and PC Main Screening System (Duperon). The similar equipment works properly and staff is intimately familiar with its operation. Standardization of major equipment will increase the efficiency of staff operational, maintenance, and repair efforts. Another direct purchase item was also considered: a Duperon 2 mm diameter perforated plate screen ($432,000) for the PC South headworks structure. The perforated plate was intended to remove small particles pumped into the facility from the South Relief Canal. However, staff does not believe the perforated plate's benefit justifies its cost. Staff will delete the perforated plate from the project and redesign the headworks structure, maximizing its ability to settle solids for periodic removal by vacuum truck. 5 F:\Public Works\KeithM\Stormwater Projects\PC South Construction\Agenda Items\Agenda - PC South Recommendation of Bid 181 Award for Construction.doc