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Change Order Number 2 <br /> Indian River County North County Water Treatment Plant Expansion Phase II <br /> Potential <br /> Change <br /> Order <br /> number Description Amount Explanation <br /> 2 Paint Existing High Service Pumps $7,005. 00 Preparation of Existing Pump Cans Prior to <br /> Installation of Pumps <br /> 3 Credit for use of onsite power ($7,528. 00 ) Contractor to use power at existing facility in lieu <br /> of installing separate power feeds for trailer, and <br /> working equipment <br /> 4 Credit for inspector's trailer ($6 ,569. 00) IRC will allow the use of the Pump building for <br /> the onsite engineer's office in lieu of contractor <br /> providing office as required by contract <br /> documents <br /> 5 Raw Water Line offsets in SW corner $88 , 032.00 Relocates Raw Water pipe and yard piping on <br /> site to accommodate new well-field piping and <br /> avoids excavation near existing well . <br /> 6 Elimination of Antiscalant / Meter Box, upgrade $27, 856.00 <br /> FRP static mixers to SS Brings Antiscalant injection points above ground <br /> replaces Fiberglass mixers with Stainless steel <br /> 7 30" Pipe at Ground Storage Tank $3,213.00 Existing Yard Piping is shorter than indicated on <br /> contract drawings <br /> 8 Modify Membrane pump cans 3 &4 $3,331 .00 Existing Membrane feed pump cans must be <br /> trued to round and plumb . <br /> 9 Relocation of 480 volt, Fiber and Optic $2,297.00 Relocates Fiber Optic line only, 480 volt line is <br /> under slab and unaffected <br /> 10 Credit for Gravel Pipe Bedding ($3,363.00) Allows placement of pipe on virgin ground <br /> without gravel bedding. <br /> 11 Credit for Surge Valve Piping ($ 17,488.00 ) Surge valve located near intersection of raw <br /> water piping and blows off into onsite shallow <br /> swale, saves piping cost and allows gravity <br /> surface flow to stormwater detention area. <br /> 12 24" Permeate Static Mixer above ground $31 ,770. 00 <br /> Reconfigures Static mixer from buried location <br /> to above ground , makes future access easier, <br /> converts Fiberglass Mixer to SS , brings injection <br /> point above ground and avoids cost of Vault. <br /> 13 Soffit on Existing Building Repair $ 14 , 750.00 Use R&R budget, complete hurricane repair <br /> when new building expansion is being <br /> performed. <br /> 14 Raw Water Pipe SS 304 to 316 above grade at $35, 078.00 Brings Acid injection point above grade to <br /> Acid injection point eliminate two underground vaults, upgrade 304 <br /> SS pipe to 316 SS for above surface duty <br /> corrosion resistance . <br /> 15 Change 2' x 3' Brooks box to 4' dia. manhole at $2,981 .00 Installs manhole with more room for operator to <br /> NaOCL injection point work, matches existing manholes on-site. <br /> 16 Asphalt overlay in ROW ($1 ,290.00) <br /> Right of Way asphalt overlay is being supplied <br /> by Kings Highway resurface contractor and is <br /> being credited back to IRC for overlap in scope , <br /> 18 Upgrade FRP to SS mixers (above ground vs. $29,765.00 Upgrades all Mixers on site to Stainless Steel , <br /> injection vault) provides more robust service in exposed <br /> locations. <br /> 21 16" Concentrate Line at NW Comer of Process $23 ,695. 00 Concentrate line is relocated to be away from <br /> building corner of building . Existing concentrate line <br /> loop will be extended above ground to avoid air <br /> relief valve. Also changes tapping sleeves to <br /> installing a Tee in the concentrate line . <br /> IRC NCWTP PHASE II EXPANSION <br /> CHANGE ORDER NO. 2 Additional Work Summary 07-13-2007.xis Page 1 of 140 <br />