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a <br />The pond will not receive run-in #rom any <br />portion of the reclaimed area. The pond will <br />be about 5 feet deep at its mar.imum depth. <br />The slope of the banks will be no steeper than <br />a ratio of 2:1 (horizontal to vertical), <br />except from 5 feet above to 10 feet below any <br />anticipated water line where slopes will not <br />exceed 3 horizontal to 1 vertical (3; 1). No <br />swimming or beneficial uses are anticipated. <br />6. "Lhca fact that 6" 01 l-opsoil is to tre plraced directly over <br />clay on {=hc pit f:Loor- may cause problems with revr`getatiny <br />this site. Typically, clay is not a good plant growth <br />m~~ciium, anti b" of r-ooti.ng rJepth and water ho:Ldiny capacity <br />will. probably not be sr.tificient for plant growth. I <br />thter-eforra recommend tha't' the operator leave at least b" of <br />pr'oduc't- below the t.epsoil tiancl above the clayi to help t.n <br />provide adegr_tate plant growth medium. <br />Recommendation noted. <br />7. An ei:aminati.on of your proposed revegetation rtoi::ture (mi.n~.rs <br />the ryes n~are;e cro;:>) leads me to s;=veral qucsti.on area=_s. <br />a. r=gre the seeding rates given to be i.n pounds^ <br />Pounds pure live seed per acre. <br />b. Is i.he seediny to be done 6y drilling or' by broadr_asting^ <br />If 'the seed is broadcast, it e=hnuld also be ral::E:d in to <br />assurr~ i;l...tat it i=_: properly covered. <br />The seed is to be broadcast and mulched. The <br />mulch is t^ be crimped. The crimping is <br />expected to act similar to raking, providing <br />both organic cover and soil cover. <br />c. Thr~ totatl. seeding rate, if drilled, is ne=arly four times <br />as high as the recommended critical area rate of 4.~~ <br />=_seeds/sq. ft. and nearly twice as tri.gh, if br-oadcast. In <br />fact, my calcu:Lations yi.ven your- seediny r-ates, yivE~~ a <br />tnt.al of 14`.~ sereeis/~~q. ft. Sur_h a rate will. almost. <br />a'_i sLl Y'edly r-r=su1'l- in neg at :i ve effect=_; on somr_= species d~.re <br />to compei:iti.on. The balance ame.~ng the species may <br />acceler-;atcs such competition effects, i.+y my calr_r_rlat:ions, <br />thra perceni_age.s of your mi.;;ture for each spFCi.es ion a <br />seedsisq, ft~ ba=.is) are as follows: <br />6 <br />ngineering & Environmental <br />