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'f H- <br /> 9/3/81 - Silver hake Wood Development -4_ <br /> III. Summary and Recommendations <br /> 1. All exposed soils should be vegetatively stabilized as soon as possible <br /> following rough grading. It would be advisable to limit exposure to only <br /> sites being developed at any given time, soils sse <br /> make for extreme wind erosion potential. It The sandy fine texture of the <br /> successful means of controlling wind erosion iso odlimitbe osoilted text the only <br /> for temporary and permanent vegetative covers are exposure. <br /> given in AppendixSuggestions <br /> B. <br /> 2. Development of Tract F will require excavation of organic soil maters <br /> replacement with suitable mineral soil material, alp <br /> and <br /> It <br /> soils be allowed to settle one year prior tois recommended that replaced <br /> development. <br /> 3. The proposed holding pond and correspondi <br /> should have adequate capacity to handle a year storm, <br /> 4. All overland flows be kept below 4. 5 cfs to maintain vegetative cover. <br /> 5. Ponding area slopes of Tract F be stabilized as soon as pond excavation <br /> is complete. <br /> 6. All storm sewer inlets should be <br /> protected by hay bale dikes or other <br /> suitable filter dikes during <br /> AppendixdCvelopment phases. Suggestions for <br /> filtering dikes are given <br /> 7. Sodded drainage swails should be constructed as soon as possible in Tract <br /> D to act as filter strips. 411 <br /> 8. Roadways and curbing should be installed <br /> prior to narrow sodded filter strip would be advisable adjacent tosite roadwwaysuction. A <br /> 9. All storm sewer outlets should have stable spillways to eliminate scouli <br /> 10. The use of hay bales or �' <br /> other suitable sediment dike measures are necessary <br /> along the entire perimeter of the park ponding area. <br /> 11. The landscaping and development of the proposed <br /> in stages to eliminate the exposure of large areas.in and park must be done <br /> 12. The importance for adequate soil cover cannot be over stressed. Rough <br /> calculations using the universal wind loss equation indicates that u <br /> tons of soil per acre per year could be lost. This would translate potaPProx- <br /> 10.8 <br /> imately 60 20-yard dump trucks per year if the entire site were left bare. <br /> 13. Appendix D lists the potential seed mixtures for the park and commons <br /> areas of the plat. <br /> If you have any questions regarding erosion control and terf establishment <br /> please contact the Ramsey Soil and Water Conservation District Office. <br /> Sincerely, <br /> Yryl-r14,tzk f <br /> Tom Petersen, Conservation Specialist <br /> Enclosure <br />