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..~..; x <br />a <br />^;~ <br />,~ ~ ~ ~;. <br />:~ <br />December 27, 2007 <br />Barr Engineering Company <br />4700 West 77th Street Minneapolis, MN 55435-4803 <br />Phone: 952-832-2600 Fax: 952-832-2601 www.barr.com <br />An EEO Employer <br />Duluth, MN • Ann Arbor, MI Jefferson City, MO <br />Minneapolis, MN Hibbing, MN <br />RECEIVED JAN D ~ ~~~~ <br />Mr. Mark Maloney <br />Grass Lake Watershed Management Organization <br />4600 Victoria Street North <br />Shoreview MN 55126 <br />Re: Progress on Lake Owasso UAA 23/62-946 <br />Barr Invoice Period: November 3, 2007 through November 30, 2007 <br />Dear Mr. Maloney: <br />The enclosed invoice is for professional services, which include the following: <br />• Continued review of water quality, phytoplankton, zooplankton and macrophyte data. <br />• Worked on Sections. of UAA report that are independent of modeling. <br />• ' Continued watershed runoff model calibration to observed flow and water quality data.. <br />O'ver the'past month we have continued model calibration efforts to the observed flow and water ' <br />quality data. collected. by RWMWD. The model calibration effort. has required more effori'than what <br />was assumed in the original scope of services and the associated cost estimate: This addition effort is <br />shown in the table below by the cost overrun in Task 004. The overall budget remaining as.of <br />November 30, 2007 should be sufficient to finish the remaining work tasks. In addition to model <br />calibration we have been working on the draft UAA report. Overall the project has fallen slightly <br />behind schedule due to the unforeseen calibration difficulties but we still intend to have a draft UAA <br />report in time for the January 2008 regular GLWMO meeting. The table below provides a summary <br />of the project budgets based on the major work tasks identified in the agreed upon scope of services. <br /> <br /> <br />Task <br /> <br />Task Descri tion <br />Contract <br />Bud et <br />Current <br />Invoice ?'btal Biked ~ <br />(including This <br />invoice ~ Balance <br />001 Current & Historic WQ $2,020.00 $75.00 $1,321.00 $699.00 <br />002 Set Beneficial Use Goals $1,150.00 $0.00 $0.00 $1,150.00 <br />003 Assess Goal Attainment $350.00 $0.00 $0.00 $350.00 <br />004 Estimate Lake Water & TP $16,860.00 $1,716.00 $17,801.17. -$941.17 <br /> Budgets <br />005 In-Lake Modeling Ex LU $18,110.00 $0.00 $8,748..42 $9,361.58 <br />006 , In-Lake Modeling Future LU ~;J,U U.UU x'0.00 ~9~:~0 ~~,9QQ.Q0 <br />. 007 , : BMP Assessment ,TS~n~O,OO .~Q.QQ ~O.oo ~~lOgo <br />oo <br />008 UAA Report $16,870.00 $2,720.00 $4,280.00 ' <br />. <br />$12 <br />590 <br />00 <br />00.9.:- <br />010 Project Management <br />Lak <br />U $5,160.00 <br />$70.00 . <br />~6 <br />~]~ <br />~oF _ <br />, <br />. <br />~~ <br />~-i~ <br />_~~ <br /> e <br />se Survey $9,520.00 $0.00 ~ <br />, <br />$13,001.38 . <br />, <br />-$3 <br />481 <br />38 <br /> TOTAL $78,130.00 $4,581.00 $51,519.32 , <br />. <br />$26,610.68 <br />