Laserfiche WebLink
r <br />TABLE OF CONTENTS <br />Paae . <br /> <br />....... <br />. <br />1 <br />EXECUTIVE SUMMARY ..............................•.... . <br /> ......... 2 <br />1.0 <br />. <br />INTRODUCTION .......... . ....................... . <br /> <br />2.0 BACKGROUND •.'~ <br />....... <br />: ......... 2 <br /> ... <br />...................... <br />1 Location ..... <br />2 ..... 2 <br /> . <br />. <br />2.2 Relationship to Lamer Watersheds - - • • • • • • • • • • • • • • ' - • :: .... <br />• • • • 3 <br /> 2.3 Past Analyses ............................... <br />. ......... 3 <br /> ... <br />2-4 Water OualitY Considerations -. • • • • • • • • • • • • • • ` ' ' ' ' <br /> ........ 4 <br />3.0 . <br />PRESENTSTiJDY .................................... . <br />......... 4 <br /> 3.1 Methods ............................... .. ......... 4 <br /> 3.2 Water Level Data ............................. .. <br />. - - • - • • • • <br />d Twin Lake ......... 5 <br /> .. <br />3.3 Re Tonal Groundwater Elevations an 5 <br /> 3.4 Overflow from Vadnais Lake ....................... ....... 5 <br /> 3.5 The Twin Lake Watershed ........................... .. . <br /> <br />4.0 RESULTS ....... <br />HYDROLOGIC MODELING AND • • • • • • • • • ° ' <br />.. . ....... 7 <br />7 <br /> 4.1 Methodol~ ............................. <br />.... ......... 7 <br /> 4.2 Modelin .................................. <br /> <br />5.0 CONSIDERATIONS ... <br />LAKE MANAGEMENT ..-.........• ..... <br />. .......... <br />......... 8 <br />g <br /> 5.1 Floo_ d Level .:............................ <br />. , ......... 9 <br /> 5.2 Water Ouality ................. . . . .......... . <br /> ENT ALTERNATIVES AND RELATIVE COSTS ....... ......... 10 <br />6.0 MANAGEM <br /> RECOMMENDATIONS .... <br />MARY AND .............. . ..... • ... 12 <br />7.0 SUM <br />CERTIFICATION <br />I Hereby certify that this report was prepared by <br />me or under my direct supervision and that I am <br />a duly Registered Professional Engineer under the <br />laws of the State of Minnesota. <br />Dennis E. almer <br />Date: November 3, 1993 Reg.. No. 9632 <br />23\621264\TWINI,AKE.RPT\KMH i <br />