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bask ~: e~~~°®ne curr~~~ aid hl~~~~°~ca~ ~at~r ~ua~cty ~®~d~~i®n~ <br />expected C®st: $2,020 <br />To determine the current and historical water quality conditions in Lake Owasso, Barr <br />proposes to: <br />® Compile and evaluate all available historical water quality monitoring data <br />collected through the Citizen Assisted Monitoring Program (CAMP) and Ramey <br />County Public Works (RCPW) <br />® Conduct Ail In-Lake Water Quality Data Collection Program for Lake Owasso <br />from May through September, 2007 <br />Historical water quality data collected by the RCPW staff typically includes more <br />rigorous in-lake water quality collection program than CAMP. This information <br />will also be useful in the in-lake modeling part of this project, as it would shed <br />light on the magnitude of any internal phosphorus load the lake may have. <br />Terry Noonan, RCPW, has indicated that they plan to continue in-lake water <br />quality monitoring for Lake Owasso during May through September 2007. <br />Therefore the proposed budget provided excludes costs for in-lake water quality <br />monitoring. RCPW monitoring program includes the following: <br />- Monitoring at the deepest point(s) in Lake Owasso <br />- Chlorophyll a <br />- Conductivity <br />- Temperature <br />- pH <br />- Dissolved Oxygen (D.O.) <br />- Secchi Disc Transparency (S.D.) <br />- Alkalinity <br />- Hardness <br />- Total Phosphorus (TP) <br />- Soluble Reactive Phosphorus (SRP) <br />- Chloride <br />Conduct trend analyses of phosphorus and chlorophyll a concentrations in Lake <br />Owasso, as well as Secchi Disc measurements, using available historical and 2007 <br />water quality data. <br />Collect, review and evaluate existing macrophyte data for Lake Owasso, as <br />reported in past surveys from RWMWD, RCPW, and Osgood. <br />Review and analyze historic zooplankton data to determine if recently observed <br />declines in water transparencies are related to a loss of grazing species that may <br />have previously found refuge from predation in aquatic plant beds. Dr. Joseph <br />Shapiro Emeritus Professor of Linmolo~y -University of Minnesota, has agreed <br />to assist Barr En~ineerin~ in this activity, and to make feasible lake water quality <br />mana,~ement recom>nendations that seem to him to be appropriate for inclusion in <br />Barr's Lake Owasso diagnostic-feasibility (UAA) report. <br />P:hvr\13\pip\2006\6069 -Lake Owasso\Lake_Owasso_UAA_Scope_Final_Jan 12 07.doc <br />