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2016 MS4 Annual Report <br />Pond Maintenance <br />I l a r �r�flt1'FtFrlic-i�E- - '- <br />?"'-sus <br />�. ` T- 1 1'� T L.�-ry-�-- lq � ♦ - " I J ill l{ � ..: <br />k i <br />DMMGENEMovE Ano REPucE i-. r r l ` „ I <br />{ ? DI&MCH RCPL + �F 1 <br />Af4lDN REPAR MMADE I Jr IdII (� I J i'; ` sEED ANO EROSIdI ^ <br />" TO CorHEaw°7�IN I' 'll1'(1�- <br />SECTIONOFRCP j 'Y) d ','I�l , _ lI}{�1 UQUIRED IN AREA 1' ~ <br />11 i _ E Y011 L s^ I{ +t 91ffi RSED FOR <br />Y -n CORSTRUCTION ACCESS <br />44 y <br />r ttttt <br />Table 5: Fairview Pond Summary <br />Drainage Area <br />514.5 acres <br />Pond Area <br />2.15 acres (per 2016 pond inspection) <br />Impervious Surface <br />79% <br />Current Average Depth <br />3.7 feet <br />Current Wet Volume <br />8.0 ac -ft <br />Outlet Diameter <br />78 -Inch (NW) <br />Inlet Diameters <br />Two 36 -inch (NE, SE), 48 -inch (NW), 84 -inch <br />equivalent arch (SE) <br />Table 6: Fairview Pond Water Qualitv AnalvsislPB Results <br />SECTION Average Removal Percentages <br />lI II <br />TSS 84°k <br />TP 50% <br />`A"Y:AL�I `�.I�Ai�'v ": lU 11411M[If IOID ]Mlef 1 M i A!!f] <br />Volume to <br />TP <br />Annual TP <br />TSS <br />Annual <br />Option <br />Description <br />Excavate <br />Removal <br />Reduction <br />Removal <br />TSS <br />(cy) <br />Efficiency <br />(lbs?yr) <br />Efficiency <br />Reduction <br />(%) <br />1%) <br />(tonsiyr) <br />Existing <br />3.7' average <br />NIA <br />25.9 <br />214.4 <br />56.6 <br />72.4 <br />depth <br />1 <br />Excavate to 4.0' <br />1040 <br />26.4 <br />218.6 <br />57.0 <br />72.9 <br />average depth <br />2 <br />Excavate to 5.0' <br />4510 <br />28.0 <br />232.2 <br />58.3 <br />74.6 <br />average depth <br />3 <br />Excavate to 6.0' <br />7980 <br />29.3 <br />243.3 <br />59.4 <br />76.0 <br />average depth <br />4 <br />Excavate to 7.0' <br />11,450 <br />30.6 <br />253.4 <br />60.4 <br />77.3 <br />average depth <br />5 <br />Excavate to 8.0' <br />14,920 <br />31.6 <br />262.0 <br />61.3 <br />78.4 <br />averse depth <br />SECTION Average Removal Percentages <br />lI II <br />TSS 84°k <br />TP 50% <br />`A"Y:AL�I `�.I�Ai�'v ": lU 11411M[If IOID ]Mlef 1 M i A!!f] <br />