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i <br /> Ilarpe detentlo�besln. A myor eewer Ilne yoee hom�outhweq to nathesst�hraqh ihs elte. PAa to <br /> goelrp�e pu►cMee d ths eke,N bsceme en aroe Beqi�ed bY oMrosd vefAdes and Moee who dumped <br /> Iurrvvented app�kncse, cer perts� erd other treeh. <br /> 4.2.1 Veaetatlon <br /> IBe(ore the Isst esnd eztractbn.PaA d the eks was en open send pk wlth no vepete►ion,ud ths <br /> remslnder wsa covered by YounO dder and wlNow stand�. The elze d the trees wahf�upps�thet ths <br /> r ske hed been deered eboullb to 20 Y�ro epo. The sMub and her6eceoua u�deretaY wae e mbQure <br /> � d nethre apeclee ard vreedy krvaelve epeciee d�adepted to disturbed arees. <br /> �� The slopes surroimdkW the Proponed wedend aree were denuded bY co�stnktion ectHkbs except <br /> fa o�e stand d aldere weet d the detentio�besin. The hesd d the qulch ti�se e new elope xeued by <br /> a messNe flNInO operetloo. After BoekW'e eerd extradlo�, and cwn�pletbn d the eedkr�enlefion end <br /> ' detentbn beeina� the dopee were eeeded wkh e yreas mbRure ta eroeion tw�drol. <br /> � 4.2.2 PoWder MI� Geek <br /> Powder MNI Creek ebove SeewaY Boulevard Ms been deG►eded over e Pe�iod d yeero by eroelon <br /> I and sedNnentetion hom storm wetx dbChs►{p betore ths p►seerR eedkne�tetion and detentlon beekro <br /> were buNt erxl hom the co�tnnxx;llon activltbe. In eddllbn,the etam weter eystem fortr�lY db�►Oed <br /> water contaMkp splNed �et lud�wfibh hxlhe►depraded the etreem. <br /> I The Ilow d the etream In tMe reach verles hom e low d abo�R 0.6 cfa,mede up erRkely d p►a�nd <br /> weter dixherqe in the dry pert d summer, to kee then 49 de dieche►ped from the detentlon beeM� <br /> ' durinp etortna. <br /> I6.0 DETAILED WORK PLAN <br /> The tdlowinq work plen covere ihe hydroloqy mekRenence tor wetlanda B erd C�the co�rotn�ctlo� <br /> � plan fw the created wetlarxla end erq6�eered s1►eam Propoeed for Powder MM Oulch, erd the <br /> landscaping lor the uplards surtaxdkq the creeted wetlande. Conce�luel dravdrqs ehowkq the <br /> planned edNMlee at Powder MNI Qulch ere etteched at the beck d thls document. <br /> I5.1 F'.'fDROL00Y MAINTENANCE FOR WETIANDS B AND C <br /> ( The primery Impect on Wetlerds B ard C Is the loee d s la►6e Perce�e0e of the watenhed Hmt <br /> provklea the runolf thet wstaina the hydrology d thoee wetlerda. To olfeet thel lose�the water Niput <br /> irom the pert d each waterahed thet wIN be loet hse tleen cdculated. Thet ert�ounl d wats►wN be <br /> I provlded to each wedard hom rooRoP drakiepe end hom perkkq lot runaM►ouled tlKoiqh bloNtretion <br /> swalea. The bloNltratlo� ewalea heve been deslpned to current Kkq CountY etarderde (depth, width. <br /> slope, vegelatlon). Stortn Ilowe thet exceed the cepadtY d the eyetem wNl be routed wer e �Iallow <br /> ( apNlway end wNl go thraph the wetland to the dow�etream detenllo� bealna. <br /> I <br /> ( r......-.,.,.......... t t <br /> IDAMES 4 MOORE <br />