6.6. SR 03-15-2010 - Laserfiche WebLink

Home Browse Search

page ~ a#' b Letter ~o IMr. Join ~1ks ~ Nor. Matt Ledv~~~a ~~: Revised FDA Hydr~~e~lagic ~vaiuatinn Report Lik River ,andf E~, ~~~c. the low water levels measured from X000 to ~00~. This analysis indicates that the SIaA water level data set is valid for establishing the base grade of the proposed development, 4, Neater elevation data depicted an the cross~sections often does not correspond to the elevation data documented an Many of the boring rags..l'lease provide an explanation, in the narrative, an liow the water elevation an the crass sections was determined. also provide an explanation on the inconsistencieshetween the water revel an the boring logs and those noted on the cross sections. The groundwater surfaces illustrated the cross sections are based an the hydraulic heads measured in the SI~,A monitoring wells on August ~Z, ~00~, The water levels on the soil boring logs were recorded. for co~.pleteness purposes only and do not represent accuxate water table or potentiom.etric surfaces due to a number of factors including the use of water during drilling and sail sample extrusion.~use rey~~~~ se~~~e~c~ ~~o~n re ort, A discussion of the applicability of water levels an the boring lags is included in Section x,1,2, 5 Y 10, 1l~inor revisions The minor revisions have been addressed. A.dditianally, informatiala regarding site preparation and survey control has been added to .Appendix ~ to describe the methods utilized during the investigations. ~~ o~ l~ ~~er ~m~.xx dated a ~ ~ 20~~ 1. I~r~ge 7, ~`r~rface ~Yafer; Several statements are made concerning the surface water management. It is indicated that the wetland in southwest portion of the site will not he affected by the development of the site, The engineering design for the su~;~ace ~~ater routing will result in a signs scant change in the hydraulics for the wetland area, The affects an the wetland are unknown at this time, The signs zcance of localized groundwater recharge from in~ltratian at the sedimentation ponds is unknawr~ at this ti~rae. tt may be appropriate to assess i~tapacts to the wetland area and groundwater using a technical approach. prior to land~li development, the site will be ~.ined for sand and gravel, The affects of the sand and gravel mining an the wetland in the southwest coiner of the site are unl~nown at this time, thus it is difficultlnot possible to assess specific affects the proposed development will have on the wetland. Jim ,~ 1 would see whetiaer o~~ not wencl~ has addressed. these issues ~. gage ~'a, ~Yater ell ~`~~vey; A comprehensive updated water well survey is presented, The ridges of nice fake community water supply well is located