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<br />y(~:: <br />-'" ~:': . <br />'c: <br /> <br />perioc\ of 1927 to 1936 was marlceu by the lovl8st rUlloff years since 1902. <br /> <br />The reservoir llould usually fill early in the flood season before exten- <br /> <br />si ve diversions begin . River conveyance 10s ses IU'" pro lx'.bly high with <br /> <br />present small flows of lQte summer, but should increaso little with stor- <br /> <br />age, Stored water \lOuld be rec;uired during June only in the dryost yonrs, <br /> <br />practically every yuar in July and August, and usually in September. Tho <br /> <br />Lemon Reservoir is carved into alternating shu-leiS ahd sandstones of thc; <br /> <br />Carboniferous Red Beds, dipping 100 dQlmstream. The overburden is gla.ciel <br /> <br />morainE- tl-;rough which tho river has cut a gorgE 50 feot deep let the dfull site. <br /> <br />The foundation is covered llith talus and wash ll'o,-,teric,l sloping up to exposed <br /> <br />rock on both abutments, FOlU1dations were exploreu by i'cur test. pits ~nd tv/v <br /> <br />diamond drill holes. The design contelJplates I'n oorth dt:1:d 180 feet in max- <br /> <br />S'",l;i imum h8ight with a crdlt length of 1,450 feet and c. total volume of 1,689,000 <br />{k,:17 <br /> <br />cubic yards. The tunn81 outlet prcvides a 700-second-foot discharge with <br /> <br />full reservoir. The nido crest open chute spillway would pcss a flood of <br /> <br />6,000 s0cond-foot. The c';Jst:Jf the Le;:;oll Roservoir is estimated at $1,657,00(' <br /> <br />including $15,000 for past inv(~stigations. Repayment in 40 equal o.nnual in- <br /> <br />ste.l1monts without inter'8st, tog8ther ldth estimated, Gperation [,nd iGCtinten- <br /> <br />anCe cb~rges uf $4,000 per ycar, would make the av~raBe annuel storage charge <br /> <br />$2,27 per (lcre for the 20,000 flcrUs, or $;4,19 per' acre-L10t for the 10,900 <br /> <br />acre-feet of a'lJ'erage 6.nnu<.l storage delivery to the f'2.rm, enllbling t;;Q o.d- <br /> <br />ditional irrigations of three inches eucD. Reduc2d charges on l~nds with <br /> <br />superior naturu.l flm. water rights woulet mdee the cost for most of the proj.., <br /> <br />ect lo.nds about $2,50 per D.crG per yeaI'. <br /> <br />The soil of the river val18Y is generally of & medium-heavy clay <br /> <br />toxture with occasion,,:l .:\lkcl1i spots, Most of the soil on Florida Mesa is <br /> <br />II <br />