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<br />United States Department of Agriculture <br />o w~cs <br />Natural Resources Conservation Service <br />Brighton Service Center <br />57 w. Bromley lane <br />Brighton, Cotwado 80807-3025 <br />August 14, 2003 <br />Ms. Vancy Boudreau Lovc <br />Love & Associates, Inc. <br />841 Frnnt Street <br />Louisville, Colorado 80027-1849 <br />RL:: Mann-Nyholt Mine Pits <br />Adams County Regional Park <br />CEO"`R~ ,. <br />~;~ <br />APR 16 ZU~4 ~-:>tti~~'L:::-~r'=,~.:- <br />~..,.r ........:...... ~.... <br />Division of Minerm_ - -•~~ -~ul ~~ <br />After reviewing the information that you sent [o me and my personal knowledge of the arcs, I <br />would make the following recommendations tot' reclamation of the site. I tried to look through <br />our files to see it; by chance, we still had the original reclamation plan bw could not find it. 1 <br />know the pits on the site side of 124'h are a lot more recent than the one on the north side. <br />One of the first steps would be to insure that the topsoil has been replaced as indicated in the <br />original reclamation p1an..A core sample could be taken tltal would show the various lavers' of <br />soil in the profile. We would recommend a minimum of 6 inches, with 8-12 inches being more <br />desirable. If the required amount is lackim~, additional topsoil should be applied and worked into <br />the existing materials. This same core sample could he used to determine the fertilizer amounts <br />needed. Fertilizer should he applied immediately prior to planting and worked into the soil. fn <br />very few situations would NRCS recommend any less than 40 ibs. of nitrogen and 40 lbs. of <br />phosphorous he applied. We use this 'rule of thumb' for all critical area seedines. <br />I would recommend two different seeding mixes, based on anticipated uses. The first mix is a <br />low to medium height mix best suited to those areas of higher usage. These aeeas would include <br />the picnic, fishing access, etc. areas. This mix would consist of the fitllowing: <br />Blue Grama <br />Side Oats Grarna <br />Buffalo Grass (bur) <br />Western Wheaigrass <br />Slender Wheatgrass <br />Streambank Wheatgrass <br />3A PLS/ac. fir) 20°,~n = .6 PLSlac. <br />9.0 PLS/ac. r 15%- 14 PLS/ac. <br />IG.O PLS/ac. 10°/b = 1.6 PLSIac. <br />16.0 PLS!ac. (u~ 20% _ :>.2 PI..Siac. <br />1 LO PLS/ac. ~, 20°'0 - 2.2 PLS/ac. <br />I I.0 PLSiac. !FJ 15% = l.b PL.S.ac. <br />303659-7004 - Ofr~ce <br />303-659-17fi6 -Fax <br />vrvnv.co ustla.gov <br />Haman. wens~co.usda.gov <br />` r <br />l~a.~: Nl_'~~~;I <br />~!I <br />the Naruml nca~nrces ~cnserosion $crviv: pme ur. IaaJ.~nvF. in a aart~~erttt~p eNmt [o beta ycvpF• <br />