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c m Bonestroo Rosene Anderlik & Associates 2335 West Higl .vvay 36 ■ Si Paul, MN 55113 Ofi'iC'? 65l*636'4600 • 651*636*1311 WWW bonestroo com exhibit f Engineers 6 Architects October 12, 2004 Ms. Janice Gundlach Planner City ofOrono Post Office Box 66 Crystal Bay, MN 55323 6;.-C ; ,5; Re:1625 Bolins Point Road File No. 139-04-000 Plat No. 04-3042 Dw*&: luiAcz: Wc liavc icviewed tlic proposed and as-built grading plans for the home constmcicd at 1625 Bohns Point Road. The opplicants engineer calculated the amount of fill brought into the site at 3940 cubic yards. Ihc previously approved grading plan estimated that 1650 cubic yards of fill would be brought onto the site to constnict the liomc I he additional fill has raised the grades in several areas and has impacted the drainage across tlie property. We have tiic following comments wilh regards to engineering mailers: • The as-built grading plan does not agree with the building permit grading plan in several areas, particulaily along the north lot line. The aica between the pool and the north lot line was defined as a high point with swales touting water caslcily and westerly on the building permit grading plan Iliesc swales were meant to keep drainage on the .subject property and convey Hows either westerly to the lake or easterly to the existing pond. Tlic as-buill grading plan does not show that these swales weie coiistiucicd as planned and it appears some water is directed northcily from the high point onto the adjacent piopeity In addition, watci tiavcliugcasteily to the pond crosses over the north lot line onto the adjacent property approxuiutcly 35 to 40 feet west of the point shown on the building permit grading plan. 'Hie defined swale shown on the building permit grading plan westerly fToin the high point was not constnictcd. Wc iccommciui that the applicant regrade along the north lot line to contain water on the subject properly to the extent shown on the building pernut grading plan • 'Hie proposed swale along the souih side of the home shown at the 932 contour on the building pemut giadmg plan was nut constructed. This area should be regraded to diicct water tow anis die lake and to drain the low aiea between the subject piopcrty and the property to the south. • fhe City should review and inspect any gracing icvisions and verify that the changes agree with the previously approved building permit grading plan. • Silt fence and any other necessary erosion control measures should be installed, inspected and approved by city staff prior to any work on site. If you have any questions please call me at (651) 604-4863. Yours very truly, BONFS'l ROO, ROSFNF, ANDERLIK & ASSOCIATES, INC, Cc: Cueg Gappa, City of Orono Bruce Vang, City of Oiono • St St Cloud W»M*r.c>r MN • * Cor:c.j.* I AUifiTiJIHvf ‘VCJ'O 1 Opo^ftwnily t»’ip 0>tf