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5000 - 4990 >-- z o i= :; 4980 W ~ W 4970 ~ 4960 ' 5010 i 5000 f- z Q f- :; 4990 0- W ~ W 4980 . 4970 5000 4990 z o i= " > W ~ W 4980 4970 2G5,.) AP-1302 -- EI. 4998 5.5 76 9-20-66 AP-1302 0-5.5' SANDY SILT, approx. 7')/0 fines, slight plasticity, slight toughoi'ss, quick dilatancy, sLight dry strength; appr<!:(. 25% predominantly fine sand; trace of gravel (limestone chips); rapid reaction to Hel; max. size 3/8"; tan; soft; dry; loose; mottled; grass cover; grass roots top 1.5'. (ML) 5.5' - 7 . 6' LIMESTONE REFUSAL ON LIMESTONE Limit of barr-vI,',' area AP-1303 E I, 4996 ~ ',5 9-20-66 _u; AP-1303 '1'1'-1329 TP-1329 E 1 4984 AP-1301 EI. 4 980 55 11-17-66 0.0-5.5' SILT, opprox.90% fines, slight plasticity, slight toughness, medium to quick dilatancy, slight dry strength; approx. 10/0 Ilrcdominantly fine sand; trace of fine gravel (limestone chips); medium reaction to Hel; max. size 1/4t1; tan; firm; dry; dpnse; homogeneous; grass cover; grass roots top 1.0'. (ML) REFUSAL ON LIMESTONE 0-1.0' TOPSOIL, gra~;s cover. 10'-' 5' UNCLASSIFIED -.RE!:J.!SAL QNLLMESTONE AT IS, AP-1310 E I 4995 ~ )1 ,,~ TP-1331 EL 4994 AP-1310 9- 20-66 0-8.51 SANDY SILT, apprux. 70% fines, slight plasticity, slight toug:mess, quick dilatancy, slight to medium dry strength; approx. 30% predominantly fine sand; I~~ trace of fine gravel (limestone chips); rapid reacti'0n to HCl; max. size 3/4"; 11-18-66 tan; soft; dry; loose; mottled; grass cover; grass roots top 2.0'. (ML) 8.51-11.0' 1.IMESTO~E, intermittent layers of limestone and shale. REFUSAL ON HARD MATERIAL 9 -20.-66 SECTION I-I T P-1330 H 4986 TP-I no ~ 5000 4990 z g f- " -- 4980 > w ~ w AP-130 I 4970 0.0-14.01 SANDY SILT, approx. 70/g fines, slight plasticity, slight toughness, quick dilatancy, slight dry strength; approx. 25% predominantly fine sand; approx. 5% brittle, flat and angular, fine gravel, (limestone chips); rapid reaction to HCl; max. size 1 1/4"; tan; soft; dry to moist; loose; mottled; grass cover; grass roots tar 2.0', (ML) 14-143' UNCLASSIFIED REFUSAL ON HARJ MATERIAL AT :43' 8 - 17-68 8 -~'7":6B ~ -r 77 Z C::> 1--' 279 NOTES Fnr location of expll)rations, see Dwg. 382-0-1357 Cround water not encountered on date indicated. 4~~ Cround water level (1il date indicated. Ground water level n(lt determined on date indicated. AP-IJOb J.('tter symbols in parentheses, following the soil descriptions in the logs, are group symbols of the Unified Soil C:lassificatic)n System based on field identification. Copies of Drawing No. 103-0-347, Unified Soil C:lassification he obtained on request to Director and Construction, Bureau of Reclamation, Denver, Colorado 80225. '00 200 1 , 4960 HORIZONTAL SCALE OF FEE T '0 '0 20 1 VERTICAL SCALE OF FEET AP-1304 14 u-tl.OI SANDY SILT, approx. 75/0 fines, nOl10 to slight plasticity, none to slight toughness, quick dilatancy, to slight dry strength; approx. preuomi nant ly fine san d; trace of fine gravel (limestone chips); rapid reaction to Hel; max. size I"; tan; snft; dry; !()(lse; mottled; homogeneous; grass cover: grass roots top 1.51. (ML) 11.0 j -14.0' 1.1 ~1!'~STONF. REFUSAL ON LIMESTUNE AP-1304 EI5003 9- 20-65 0-8.0' SILT, opprox, 85 % filWS, ~Iight plasticity, slight t()ughness, medium dilatancy, slight dry strength; approx. 15'%, predominantly ,J'< 6f fint' sand; trace of hard, dngular, fine gravel (I imestone chips); medium reaction t:) Hel; max. size 1/2"; tan; firm; dry; {jt'ns~; homogeneous; grass cover; grass n)()(s top 1.0'. (ML) REFUSAl. ON UnESTONE ----------------------- TP-l']]l 0-9.91 SilT, approx. 85 % fi'"les slight plastic-ity, slight toughness, medilllll dilatancy, medium dry strength; approx. 15'/0 predominantly fine sand; trace of hard, angu lar, fine gr ave 1 (l imes tone chips); medium reaction to HCl; max. size 1/2"; tan; finn; dry; opnse; hO!TIogeru'ous; grass cover; grass roots top 1.0', (MI.) 9.Y'-11.2' SHALE, tan to gray. REfUSAL ON LIMESTONE SECTION 2-2 AP-1309 EI 4984 LLmd of borrow area AP-1309 '0 0-10.01 LEAN CLAY, approx. 90% fines, medium plasticity, medium toughness, slow to medium dilatancy, medium to high dry strength; apprDx. 10'/0 predominantly fine sand; trace of angular, fine gravel (limestone chips); rapid reaction to HCl; max. size 3/8"; tan; firm; dry; loosE'; mottled; grass cover; grass roots top 2.01. (CL) REFUSAL ON SHALE 9- 20 66 SECTION 3-3 AP-1305 El4996 :06 11.3 9-20-66 AP-1305 0-10.61 SANDY SlLT, approx. 7010 fines, nom' to slight plasticity, nOlle to slight toughness. quick dilatancy, sl ight dry str('n~',th; approx. 25/0 predominantly lim' sand; approx. 5'10 brittle, algu1ar, fine gravel (limestonl' chips); rapid reaction to lIel; max. siz'-' ltl. tan' soft. dry. loose' mottled' homoger:euus. gr~ss c~v~'r; grass' roots top 1.5'.' (MI.) , " 10.6' -11. J' l.H-tESTONE REFUSAL ON I.lMESTONE AP'I307 EI,4981 AP-IJOi' 0-6.41 SANDY SILT, approx. 80/g fines, very slight plasticity, slight toughness, quick dilatancy; approx. 20'70 predominantly fine sand; trace of ~ravel (limest(lne chi~s); rapid reaction to HCl; max. siZ0 3/4 '; tar:; soft; dry; louse; humogeneol1s; 6.4?~~~ZICO{~~ks~~~~s roots tup 2.0'. (ML) REFUSAL ON UMESTONE '3 -20-66 AP-1306 EI 4978 ~ooo z o f- ~ '" J W 4980 49ro -, 5010 5000 0-2.61 SANDY SILT, approx. 701~ fines, slight plast ietty, sli ght toughness, quick dilatall(:y, slight dry strength; appr(IX. 1070 prpdominant Iy fine sand; trace of brittlp, flat and angular, fioe gravel (limt'sturl(' chips); rapid reaction to HCl; max. sizl..' 3/411; tan; soft; dry; loose; mott It'd; grass cover; grass roots top 1.5', (ML) 2.6'-1.6' L Il'-IE STONE KEFUSAL ON II~IF-STONE I or 26 36 .' 9-20- z o f- , 4990 <t > W ~ W - 4880 Limit of borrow area -"" 4870 .r~ RLWRYS HunK SAfETY UN'TED STATES DEPARTMENT OF THE INTERIOR BUREAU Of RECLAMATION FRYfNGPAN-ARKANSAS PROJECT--COLORAD 0 PUEBLO DAM LOGS OF EXPLORATION FOR RIGHT MESA BORROW AREA SECTIONS I-I THRU 3-3 DE:SIGNEOjf. w_ .(:;,--:Z'~'r D~AWN ~j, 'Ill ';{.~"~'-:4--J.. ';I-IECKED_r~"'-r .J:--I'--~".(..,-..r..:----::-- SUBMITTED,_-'.~/-~\JL_~ ~ RECOMMENO~;;t, d,K;.J-~ APPROVED _ CH,E,f-, Hl'DRAUl-IC ST"'uCTw E,S tJ"'''NCM DEN VER, COLORADO, AUGUS7' 31,197'1 SHEET I OF 4 382-0-1381