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DATE <br />CITY OF RAMSEY LAND USE APPLICATION <br />TECHNICAL REVIEW FILE <br />JUNE 30, PROJECT ADDRESS SOUTH END OF BOWERS <br />2017 <br />PROJECT. TITLE PEARSON PLACE <br />EscRow # 115701 <br />DEPARTMENT: Engineering <br />Name: Leonard Linton <br />TECHNICAL Phone: 763 433-9834 <br />Email: llinton@ci.ramsey.mn.us <br />REVIEWER: <br />DRIVE <br />We offer the following comments regarding the Preliminary Plat submittal for Pearson Place. The <br />submittal consists of 4 sheets prepared by Otto Associates dated May 24, 2017, received June 9, <br />2017. The submittal also included Soil Observation Logs for the proposed drain field areas and <br />stormwater summary and calculations. <br />We offer the following comments on these sheets: <br />Preliminary Plat Sheet 1: <br />1. No comments. <br />Preliminary Plat Sheet 2: <br />1. The soil boring labels must be darker. <br />2. The legend is not complete. <br />3. There are soil borings labeled "By others". Logs for these borings must be provided. <br />Preliminary Grading Plan: <br />1. Silt Fence is required down slope of all disturbed areas. <br />2. Construction limit fence must be installed along the east side of the plat. <br />3. A note must be added to the Final Grading Plan "All disturbed areas must be seeded and <br />mulched within 7 days after surface disturbance ceases." <br />4. The invert elevation for the storm sewer pipe does not match the length and slope listed. <br />5. The storm sewer pipe size must be enlarged to carry the 100 year storm from the street to <br />the ponding area. <br />6. Several deep (min. 10 ft.) are needed in the infiltration area to determine groundwater <br />elevation. <br />7. The overflow elevation of the infiltration basin must be shown. <br />8. Additional topo must be obtained east of the emergency overflow to show there is an <br />overland flow route. If the area does not have an overland outlet then the infiltration basin <br />must be sized for back to back 100 year storms. <br />