REV105317 - Laserfiche WebLink

Home Browse Search

43 short periods and removes soil frcm these rhannalS to depths of one foot or more), these areas will be filled with soil, reseeded and mulled. In addition, straw bale ~;m~,t traps will be caistructed when the gullies are first observed to detain rtanff aryl trap sti~,~d ~i~++P*~*. Alternative sed;mo„r control mea_~ efficietxy cannot be measiued on a storm-specific basis. Zhe lack of per+e_*+*+; a~ surface water as ~*rea+*~ ow, precludes water quality sampling. Further, the effectiveness of the reclamation practices, catpled with slope length limits will decrease soil erosion (hence s ;~++P^* movement) to the point that physical m~a,remn.,rc of soil erosion wwld be aoas~lished only with elaborate aryl detailed physical apas**p~•+~- systems, a viable option only as a researr3r effort. Water ouality St<vxi?**j~ Rhe existing s i~*r+~ detention basins on the Bourg Mine are properly ~*'+'+; tted with NPDES (National Fbint Dis[37arge Elimination S~stan) ~+~+~; is because of their ;*++a**~;ttent basin discharge being recognized as a point sauce of "water pollution." The proposed alternative sediment control mcac~,roc for the Bourg Mine are not designed to have specific discharges of water, indeed no channel design is anticipated. ~1e slope length and slope shape modifications are meant to m;n;m;~e 'lohr gp,~rg~ycn, If overlaid flows occurs, it would be considered rxm-point in origination. Non-point source water quality ~*a*~~**ae are usually evaluated by sampling above and below the lard use activity. `!he above sample representing sane measure of baGogrotud water quality and the below sample aaeP~aing lard use activity ~ water quality. 'Dle stream power aryl sediment supply has already been described for Mann Draw (see Streamflow Generation) . `Rie reon-point so~uoe ~*pa*+fl ow frsml the reclaimed Hourg Properly wand have little impact on water