2008-04-24_AgendaPacket - Laserfiche WebLink

Home

Mr. Mark Maloney April 21, 2008 Page 5 excludes costs for in-lake water quality monitoring. However, RCPW will bill the GLWMO directly for the additional in-lake water quality monitoring at the second lake location (5403). This data will be useful for looking at trends in the historic lake water quality as well as in the development of the in-lake water quality model. Collecting these data will be especially important if the runoff and pollutant loading model requires recalibration. Task 12: Validation/Recalibration of the Runoff and Pollutant Loading Model using 2008 monitoring data Expected Cost: $7,265 (by Barr) In 2007, a P8 watershed model was developed for the Lake Owasso watershed and calibrated to 2007 runoff monitoring data. However, because of the atypical climatic conditions during 2007, there is some uncertainty if the parameters selected for the calibration are reflective of typical climatic conditions. The 2008 runoff monitoring data, to be collected under Task 11, will be used to validate the P8 model developed for the watershed. However, if the runoff predicted by the P8 model for 2008 does not reasonably match the 2008 monitored runoff, recalibration of the P8 model may be necessary. Once calibrated, the Lake Owasso P8 model can be used as a tool to estimate the water and phosphorus budgets of the lake and to evaluate the impact of various climatic conditions as well as best management practices on the runoff and pollutant loads to the lake. Task 13: Validation/Recalibration of the in-lake water quality model using 2008 monitoring data Expected Cost: $7,130 (by Barr) In 2007, an in-lake water quality model. was developed for Lake Owasso and was calibrated to 2007 in-lake water quality monitoring data. However, because of the atypical climatic conditions during 2007 and the uncertainty in the predicted watershed loads (from P8) to the lake, recalibration of the in-lake water quality model may be needed if recalibration of the P8 model is required. Once calibrated, the Lake Owasso in-lake water quality model can be used as a tool to estimate the sources of phosphorus to the lake anal to evaluate the impact of various climatic conditions as well as best management practices on the in-lake water quality. Task 14: Additional Year of Project Management (for 2008) Expected Cost: $3,385 (by Barr) This task was included for an additional year of project management, including tasks associated with billing and invoicing, attendance of meetings, and miscellaneous correspondence throughout 2008 and into early-2009. P:\Mpls\23 MN\62\2362946\WorkFiles\ProjectManagement\ForGLWMO_04212008\Letter_Contract-Revised SCOpe_April2l.doc Aprit 21, 2008 Version