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j Barr Engineering Company
<br />I 4700 West 77th Street Minneapolis, MN 55435-4803 ~~.~~ ~`~-~ ~ ~~
<br />~ Phone: 952-832-2600 Fax: 952-832-2601 • www.barr.com An EEO Employer
<br />_ ~ '_`
<br />___ _._
<br />\ L Minneapolis, MN • Hibbing, MN • Duluth, MN • Ann Arbor, MI • Jefferson City, MO • Bismarck, ND ~
<br />December 19, 2008
<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 />Sar"r i;~v®ice Period: l~o~: eriber 1, 20G'' thraieyl5 iVclv~cc~i a;r 26, 2c~i3o
<br />Dear Mr. Maloney:
<br />The enclosed invoice is for professional services, which include the following:
<br />® Update Lake Owasso presentation for GLWMO meeting
<br />® Compile 2008 hourly precipitation and temperature data from Downtown St Paul gage for 2008
<br />® Adjust 2008 hourly precipitation using closest high density network daily precipitation information
<br />to Lake Owasso
<br />® Set-up Lake Owasso water balance to check 2008 runoff predicted by P8
<br />® Compile remaining 2008 flow monitoring data from RWMWD
<br />® Run 2007 "calibrated" P8 model for 2008 to predicted runoff at monitored sites
<br />® Recalibration of P8 to 2008 monitoring data to reflect new rating curves, infiltration adjustments,
<br />discharge adjustments, etc.
<br />e'
<br />The table below provides a summary of the project budgets based on the major work tasks identified
<br />in. the agreed upon scope of services.
<br />
<br />
<br />Task
<br />
<br />Task Descri tion Updated
<br />Contract
<br />Bud et
<br />Current
<br />Invoice Total Billed
<br />(including this
<br />invoice)
<br />
<br />Balance
<br />n~
<br />CV i n, { n ~ is _s !I~
<br />;,urren, a i~i~~Gri%V'4 ~,t .nn nnt:
<br />:pc,VCV. UIi
<br />$li.~~ T
<br />X2,544.00
<br />~ -~52~{.UU
<br />002 Set Beneficial Use Goals $1,150.00 $0.00 $562.50 $587.50
<br />003 Assess Goal Attainment $350.00 $0.00 $0.00 $350.00
<br />004 Estimate Lake Water & TP $18,345.17 $0.00 $18,345.17 $0.00
<br /> Budgets
<br />005 In-Lake Modeling Ex LU $21,743.45 $0.00 $21,956.28 -$212.83
<br />006 In-Lake Modeling Future LU $3,050.00 $0.00 $93.50 $2,956.50
<br />007 BMP Assessment $5,040.00 $0.00 $0.00 $5,040.00
<br />008 UAA Report $16,870.00 $0.00 $12,512.50 $4,357.50
<br />009 Project Management $8,545.00 $44.00 $9,702.12 -$1,157.12
<br />010 Lake Use Survey $13,001.38 $0.00 $13,001.38 $0.00
<br />011 2008 Monitoring (Barr Only) $2,000.00 $42.50 $2,833.38 -$833.38
<br />012 2008 Watershed Model Validation $7,265.00 $3,049.50 $3,471.50 $3,793.50
<br />013 2008 In-Lake Model Validation $7,130.00 $0.00 $0.00 $7,130.00
<br /> TOTAL $106,510.00 $3,135.50 $85,022.33 $21,487.67
<br />
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