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A . All materials and equipment shall meet the specifications of the <br /> contract documents. Substitutions that are to be considered `or equal ' <br /> ' will be considered during the submittal process, and shall be <br /> demonstrated as such by the contractor. <br /> ' CHANGES TO CONTRACT DOCUMENTS <br /> SECTION 00310 - BID FORM <br /> ' Replace Section 00310 with attached revised Section 00310 Al . <br /> SECTION 00800 - SUPPLEMENTARY CONDITIONS <br /> Amend Section 00800 by adding the attached Geotechnical Services from Dunkelberger <br /> Engineering & Testing , Inc . , dated October 21 , 2002 . <br /> ' SECTION 1010 — SUMMARY OF WORK <br /> Amend paragraph 1 . 01 (A) as follows . <br /> ' Furnish all labor and materials necessary to construct a post treatment facility and odor <br /> control system , including but not limited to ; two degasifiers , a two stage wet scrubber <br /> ' system and all associated piping, recirculation pumps , blowers, and duct work , a concrete <br /> clearwell structure including excavation , backfill , grading , yard piping and valve <br /> installation, installation of three 50 HP vertical turbine transfer pumps with variable <br /> ' frequency drives including all electrical power and controls , painting , sodium hydroxide <br /> and sodium hypochlorite chemical system improvements , including bulk tanks , metering <br /> pumps , FRP piping replacement of raw water, pretreatment water, concentrate, and <br /> permeate with HDPE and stainless steel , four (4) cartridge filter vessels , piping, valves, <br /> testing of piping, and bacteriological clearance of system , as depicted on the drawings <br /> and described in these documents . Furnish construction trailer(s) including all setup, <br /> ' monthly charges and removal costs. The size and quantity shall be determined by the <br /> contractor. The trailer(s) shall remain on -site for the duration of the project and be <br /> equipped with power, phone lines, and air conditioning. At least one trailer shall be <br /> provided for the purpose of project meeting described in Section 01200, and shall <br /> include 8 chairs(min), table(s), fax machine and phone, and have a 2-phone line <br /> service to trailer. <br /> ' SECTION 11212 - CARTRIDGE FILTERS <br /> ' Amend paragraph 2 . 02 CARTRIDGE FILTER DESIGN, by changing : <br /> Test Pressure , psi from 300 to 195 . <br /> ' Amend paragraph 2 . 03 MATERIAL b adding : <br /> P Y g : <br /> ' 044572000 <br /> ADDENDUM I <br /> ' Page 3 of 5 <br />