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Ko� 101 PAGE 630 DATE: MAY 12,1997 TO: JAMES E. CHANDLER COUNTY ADMINISTRATOR FROM: TERRANCE G. PINTO DIRECTOR OF UTILI6SERVICES SONNY DEAN DIRECTOR OF GENERAL SERVICES PREPARED AND STAFF BY: ROBERT O. WISEMEN, PE.Q&3 ENVIRONMENTAL ENG SUBJECT: SOUTH COUNTY REGIONAL WASTEWATER TREATMENT FACILITY 2.0 MGD EXPANSION CONSTRUCTION INDIAN RIVER COUNTY BID NO. 4039 - BID AWARD INDIAN RIVER COUNTY PROJECT NO. US -90 -20 -DC. BACKGROUND On September 20, 1994, the Board of County Commissioners approved and authorized Camp Dresser & McKee, Inc., engineer, to design, permit, and advertise for bid, etc. The project was advertised, with all permits being acquired except for Environmental Resource Permit which will be issued shortly. Bids were received from 5 contractors on April 2, 1997. ANALYSIS The Department of Utility Services Staff received bids that range from $8,347,000.00 to $8,754,000.00. The lowest bid of $8,347,000.00 that was received from Wharton -Smith. Inc is 11.3% above the engineer's estimated cost (see attached tabulation) of $7,500,000.00. The County and the engineer have investigated and spoken with the City of Orlando and Daytona Beach. Their Wastewater Treatment Plants costs were 15-25% higher than estimated in the past two (2) years. This is the result of a high demand for Wastewater Treatment Plant contractors. The base bid includes construction -of the plant expansion- to 2.0 MGD, removal and replacement of headworks screen, installation of a telemetry system, allowances for independent testing laboratory services, roof replacentertt, renovating of the existing generator room into instrumentation and control room and the operation building, allowance for electrical wire and performancelpayment bonds. The Department ofUtility Services Staff and engineer have discussed and negotiated with Wharton - Smith, the lowest bidder, several ideas to reduce the cost without down -grading the quality of the delivered product. It was concluded that the contractor upon award ofthis project will let the County pay directly for the cost of the materials. This potentially could save the County over $170,000.00 in sales tax. However, the contractor has also asked the County's cooperation in processing the purchase order and payment in the most expedient way in order not to delay the project progress . ALTERNATIVE BID 1• is an addition of a chlorine containment with a scrubber system for evacuation of a hazardous gas. This is to eliminate the problem in the event of a chlorine gas leak. Presently the state does not regulate this issue, however we think it would be prudent to enclose the building. The Department of Utility Services Staffhas considered the safety issues, and has asked the engineer (CDM) to specify a design to be included in the bid for the Board of County Commissioners to approve. The cost for chlorine containment (modify the existing open building) with a Scrubber System is $160,000.00. ALTERNATIVE BID Ii: relates to the upgrade in the existing laboratory and office plant building. The existing window air conditioning unit is insufficient for the computer and electronic monitoring instrumentation that are going to be located in the building. The level of moisture in the building exceeds the allowable level for electronic instrumentation. Therefore, this upgrade, including central air condition installation, air duct distribution system is to protect the County's investment. The cost for alternative No. 2 is $20,000.00. 42 JUNE 3, 1997