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16 <br /> PROJECT: Water Filtration Facility — <br /> Lake Chaplain Recovered Water Outfall Improvements Project <br /> WO# UP-3347 <br /> WORK CHANGE DIRECTIVE - No 04 <br /> DATE OF ISSUANCE August 28, 2010 <br /> You are directed to proceed promptly with the following change (s): <br /> Description: Revise the City of Everett Lake Chaplain Reservoir Equipment Decontamination Policy <br /> located at the end of Section 01580 per the following: 1) Pages 4&5- Require decontamination of <br /> any and all used equipment (equipment that has been in other bodies of water including fakes, rivers, <br /> reservoirs etc.) 2) Page 4 Decontamination - Decontamination shall consist of hot water pressure <br /> washing, ten (10) minute contact with a quaternary amine cleaning/disinfectant followed by a rinse <br /> and then drying for the 72 hour desiccation period. 3)Allowable quaternary amine <br /> cleaning/disinfectant cleaners include: A)4.6% Quat 128 at 6.4 oz. per gallon, B) 3.1% Sparquat 256 <br /> at 4.3 oz. per gallon of water, C) 1 part Formula 409 to one part of water. 4)Contact must include <br /> running the disinfectant through cooling systems on outboard motors and the bilge of barges. 5) <br /> Neither the disinfectant nor the rinse water from the disinfectant shall be allowed to flow directly or <br /> indirectly through drainage systems into Lake Chaplain or Chaplain Creek or its tributaries. 6) <br /> Following the rinse equipment must be allowed to dry and be kept dry for a 72 hour desiccation time. <br /> 7)The City will try to provide a covered space to allow drying during inclement weather. But if <br /> equipment is too big to fit in City space protection from the weather to allow drying will be the <br /> responsibility of the Contractor. <br /> Purpose of Work Change Directive: Decontamination procedures need to be changed due <br /> to the appearance of the New Zealand mud snail in waters in Washington and surrounding <br /> states. <br /> If a claim is made that the above change(s) have affected Contract Price or Contract Times, any claim <br /> for a Change Order based thereon will involve one or more of the following methods of determining the <br /> effect of the change(s). <br /> Method of determining change Method of determining change <br /> In Contract Price: in Contract Times: <br /> ❑ Unit Prices <br /> ❑ Contractor's records <br /> El Lump Sum ❑ Engineer's records <br /> ❑ Other ❑ Other <br /> Estimated increase(decrease) in Contract Price: Estimated increase(decrease) in Contract Times: <br /> $1,341.43 Substantial Completion 0 days: <br /> If the change involves an increase,the Ready for final payment 0 days: <br /> estimated amount is not to be exceeded If the change involves an increase,the estimated <br /> without further authorization. times are not to be exceeded without further <br /> authorization. <br /> ACCEP ; I e ar J Corporation AUTHORIZED: City of Everett <br /> 1 D B : gar �f 1/ Date: AP/J)/0 <br /> Date: 10)113/ y" <br /> By. Authorized Signature) <br /> (A g •vrizlt• Signature) <br /> 192 <br />