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,., .., ~fJ&3 5010 AP 1319 EI 4998 '5000 Z Q ILlmlt of >- > w -' w 4990 4980 '-- ~040- 5030 5020 I is c~ <l > ~, ~~ w 5(',10 ,--------- 5000 --- 4990 ----- 4980 9-21-66 AP-1320 E I 5000 05 1.5 ~,' 9~21-66 AP-1319 0-15' TOPSOIL1grass cover REFUSAL ON HARD MATERIAL "--~Llmlt of borrow oreo j AP-1350 , EI. 4986 1- ~A!'-13~(J 43 ):~ 0-4.)' ;.i';At\ CLAY, appro::. 9070 fines, m~>diUl:' hi h 6-26-69 la::;t ici ty Ir,(~di.um LU~Lghness, slow dLlatanc~, 1 IS 'tr(:ng~h. approx. 10% hard, with ~ome brLtt e, :, t \) fi~e flaL to subrounded 1 Lmestone and 'L:mitic sand;' trace of b~ittle,. fine, f~at to ~ubr()undec1 limestune g:-avel; rapid re~ctlo~ to Hel; lnilX. size 3/ijtl; light hrown; dry, grass cover. (el.) :( EFCSAI. ON 1W\D MATERl AI. AP-1349 E I 4999 A P 1321 E I. 5005 AP-1323 E I 5009 AP-1323 9-21~66 0-7.0' SANDY SILT, approx. 75'70 fines, medium pla~- ticity, medium toughness: quick ~ilatancy! medium dry strength; approx. 25% predomlnant~y fine sand; trace of hrittle, flat and angular," fine gravel (limestone chips); rapid reaction to HCl; max. size 3/8"; tan; firm; dry; densE'i homogeneous; grass cover; grass rOvts top 2.0 (ML-CL) REFUSAl. ON HARD MATERIAl. AP-1321 0-58' SANDY SILT, approx. 7570 fines, slight pl<;1s- ticity slight toughness, quick dilatancy, slIght to medium dry strength; appro~. 25~0 fine s~nd; rapid reaction to HCI; max. SIze fIne sand, tan; firm; dry; den~e; homogeneous; grass cover; grass roots top 2.0 . (ML) REFUSAL ON HARD MATERIAL 58 9-21-66 0-5.8' SANDY SILT, approx. ?5/u fines, slight ~o me~ium plasticity, sLight to medIum toughness, medllIDlodlla- taney, medium to high dry ~trength; aI;>prox. 2010 predominantly fine sand (llmt.stone ChIpS); approx. 5/u brittle, [Lat and ar.guLar, fine gravel (limestone chips); rapid reaction to HCl; max. size 3/4"; tan; firm; dry; dense; homogeneous; grass cover; grass roots top 2.5 I . (ML-CL) 5,8' -7,3' SHALE AND I.IMESTONE REFUSAl. ON SHALE -9-22-66 SECTION 9-9 AP-1346 AP-1348 0-8 11 LEAN CLAY approx. 85/0 fines, medIum plasticlty, l;lcdium toughne~s, slow d:datancy, high dry stren1?th, approx. l5/y hard, with some brittle, ~o~rse to. fIne" 1 I ;Il to subrounded limestone and gran1.~IC sand, tra~L'. of brittle, fine, flat to sub:ounded..llm~stone gra;el, rapid reaction to HCI; max. Slze 3/8 ; Ilght brown, dry; grass cover. (CL) REFUSAl. ON HARD t1\TERIAL 0-9.3' LEAN CLAY, approx. 9010 fines, medium plast"icity, medium toughness, high dry strength; approx. 10% hard, with some brittle, coarse to fine, flat to subroundE'd limestone and granitic sand; trace of fine, flat to subrounded limestone gravel; rapid reaction t:o HCl; max. size 3/8"; light hrown; dry; grass cover. (CL) REFUSAL ON HARD MATERIAL AP 1346 EI 5014 T P 1342 EI.5009 AP-1347 Eo 5011 - -- 76 6-26-69 81 ',' 6- 26-69 0-7.6' SANDY CLAY, approx. 65/0 fin~s, medium I;1las- ticity Illcdium toughness, slow dIlatancy, hlgh dry sL~ength; approx. 2510 hard, with. some brittle, coarse to fine, flat to subrounded limestone and grZlnitH._ sand; approx. 10;0 hard, wIth. some brlttle coarse to fine, flat :':0 subrounded l:mestone 11. gravel' rapid reaction to HCl; max. SIZe 1 1/4 , {iglll brown; dry; grass cover. (CL) REFUSAL ON HMU MATERIAL AP-1347 1'1'-1342 62 69 84 ',' 7.5 -e 6-24 67 0_7.51 LEAN CLAY, prox. 85/~ fines,.medium p1ast~city, medium toughnes< slow to medium dIlatancy, medIum to high dry str, ;-,gth; approx. 15/0 hard, with ~ome brittle coarse 10 fine, flat Co subrocnded lImestone and gra~itic sand; trace of fine, flat to subrounded limestone gravel; rapid reaction to HCl; max. size 3/8"; light brown; dry; grass .'-over. (CL) REruSAI. ON HARD MATERIAL 9' 6-24-69 5-27-69 0-6.21 LEA.N CLAY, approx. 90;0 fines, slight plastic:ity, sl ight toughness rredium to quick dilatancy, medium dry strength; ap~rox. ~O/u hard, .with some brittle, coarse to fine, predominantly fu:e! flat, angular to subrounded limestone and granitiC sand; trace of hard with sOllie brittle, fine, flat, angular to sub- roundl'u limestone gravel; rapid reaction to HCl; grass cover~ hairlinl' roots and limey nodules thr~ugh- out; max. size 3/4"; light brown; soft; dry to mOlst; dpnse; homogeneous. (CL) 0 . 6.2'-6.91 CLAYEY GRAVEL. approx. 7070 hard, wl~h some hrittle, coarse to fine, flat; sUbangula:: 11mesto~e. graveL; approx. 2010 f~nes,. Slight to me~lum plast~clty,. medium tnuf"hness, medium dIlatancy, medlum dry s~rength, approx. 10';~ hard, ",'ith some brittle, .coarse ~o fIne, flat, subangular limestone sa.ld; rapI~ reactIon to HCl; max. size 2 1/211; light tan; firm; mOlst; dense; iointcd, (GC) , 6.91-8.41 SANDY ClJ..Y, approx. 75/0 fines, medium p}astlcity, mpdillm toughness, high dry strength; approx. 15/0 h~rd, with SOllle hrittl(>, coarse to fine, predominantly fIne') f 1a t suhrounded 1 imes tont:' and gr ani t ic sand; approx. 10'%, h~lrd, with some> hrittle, coa~se to f~ne, fla~, suhrulllld('d 1 imt>stnf)C' gravel; rapId rp,1.r't10n to HC llldX.."i"",l 1//11 ! :,i'l 1'1'\1!",11; linT:; Olilist; uense; SECT ION 10-10 5040 ~ ! " ~---------- 5030 >--- - Limit of borrow area I AP-1343 [I 5029 AP-\343 AI'-1345 9-22-66 0-4.01 SANDY CLAY, approx. 80% fines, medium to high plasticity, medium to high toughness, slow to medium dry strength;, approx. 2010 predominantly fine sand; trace of fine gravel (limestone chips); rapid reaction to Hel; max. size 3/8"; tan; firm; dry; dense; homogeneous; grass cover; grass routs top 2.01. (eL) NARROW SEAM OF SHALE ON TOP OF LIMESTONE liFlISAL ON LIMESTONE 1:<24 ~i)OI AI'-1324 AP-1345 EI5023 6- 2 4-69 0- 6.6 I LF.AN CLAY, approx. 8510 fines, medium plastic ity, medium toughness, slow to no dilatancy, high dry strength; approx. 15% hard, with some brittle, coarse to fine, flat to subrounded limestone and granitic sand; trace of fine, flat to subrounded limestone gravel; rapid reaction to HCl; max. size 3/8"; light hrown; dry; grass cover. (CL) REFUSAl. ON HARD MATERIAl. z Q >- g 5020 w -' w 0-13.01 SANDY CLAY, approx. 801" fines, medium plas- ticity, medium toughness, high dry streni?th; approx. 20'7~ hard with some friable, coarse to flne, flat _ to suhro~nded linlt'stone and granitic sand; trace of friahle, fine, flat to.subrounded shaley.lime- stone gravel; rapid reactlon to HCI; max. Size 3/8"; light brown; dry; grass cover. (CL) REFUSAl. ON HARD MATER [AI. 6- 24 69 ENI, ~1A'jFRJ..\L " MATCH LINE 5010 -- " 5000 . SEe TION 10-10 (Continued I ~ 5040 j 5030 z Q >- ~ 5020 '; w -' "' 1 i j 5010 . 5000 6 - ;7-68 8 -~'7~68 A P- 1325 E I 5003 AP-1325 0-6.0' SANDY SILT, approx. 8010 fines, slight plasticity, slight toughness, quick dilatancy, medium dry strength; approx. 20% fine sand; rapid reaction to HCl; max. size fine sand; tan; firm; dry to moist; dense; homogeneous; ?rass covpr; grass roots top 2.01. (ML) 6, D -7.7' LIMESTONE AND SHAI.E REFUSAL ON LIMESTONE TP-1341 EI 5030 5- 27-69 TP-l 34 I 0-5.6' LEAN CLAY, approx. 85/0 fines, slight plasticity, slight toughness, medium to quick diL:ltancy, medium dry strength; approx. 10% hard, with some brittle, coarse to finl', predominantly fine, angular to subroundt,d 1 imeslone and granitic sand; apprax. 5~/D hard, with some brittle, fine, angu I ar t () subrounded 1 imes tone gravel; rapid reaction to HCl; max. size 3/4"; 1 ight hrown; soft; dry; dense; homo- f~~~(lU~~Lfrass ('over; grass roots tap 1.6'-6.91 LIMESTONE L:,COUNTERED FORMATiON MATERIAl. NOTES For location (If ('xplnr:1tiuns, s('C' Owg. 382-0-1357 Cruund water not erlUluntt'rpd on date indicated. 4 8~1~-~8'-<- Cnllllld ",':lter level ')11 datt-' indicated. Cround w;ltcr level n(lt determined on date indicated. Letter symhol.'" in parentheses, foJ lowing the soil dese-rlption~ in the logs, are group svmhol s of the l'ni fied Soi 1 C1 assi [ication System based on field idE'nt ffie-ation. Copies of Drawing No, IO'}-D-'147, llnified Soil Classi[icatir hv ohtained un rpquest to Director anu Construction, Bureu of Re("~;lnlaLi()n, Denver, Colorado 80225. 100 100 200 J HORIZONTAL SCALE OF FEET 10 10 20 VERTICAL SCALE OF FEET Limit of borrow AP-1326 EI. 5006 45 5 0' 9- 2 2 66 ~ o reo -----j I I 1 AP-1326 0-4.5' SANDY SILT, approx. 80% fines, slight to medium plasticity, slight to medium toughness, medium to quick dilatancy, medium to high dry strength; approx. 20% predominantly fine sand; trace of fine gravel (limestone chips); rapid reaction to HCl; max. size 3/4"; tan; firm; dry; dense; homogeneous; grass cover; grass roots top 2.5'. (MI.-CI.) 4.51-5.0' LIMESTONE REFUSAL ON LIMESTONE AP-1344 E, 5035 " 58 64 w Z -' I U >- " 6 ~24-69 AP-1344 0-5.8' SANDY CLAY, approx. 8010 fines, slight plasticity, slight toughness, medium dilatancy, medium dry strength; approx. 15~~ hard, with some brittle, coarse to fine, flat to suhrounded limestone and granitic sand; approx. 5% hard, with some brittle, fine, flat to subrounded limestone gravel; rapid rc';\ction to HC]; max. size 3/4"; light brown; dry; grass cover. (CL) 5.9' -6,4' I.lMESTONE REFUSAL ON HARD MATERIAL D 7720 282 , 5010 i 5000 Z Q >- > w -' w 4990 4980 , 5040 5030 j 5020 z Q >- <l . 5010 > W -' W - 5000 4990 4980 @ ALWAYS T~mK SAfeTY UNITED STATES DEPARTMENT OF THE INTERIOR BUREAU OF RECLAMATION FR YINGPAN-ARKANSAS PROJECT--COLORADO PUEBLO DA M LOGS OF EXPLORATION FOR RIGHT MESA BORROW AREA SEe nONS 9-9 AND 10-10 DESIGNED /I wG:>.... ,I , SUBMITTED ;...._,' ,/ u..~______ ~_ DRAWN '..1 '~/:rvt-'';(<7-<.c'" RECOMMEND~D;1k. ~ ,e~ _ CkECKED ~:; "d;..._J._ CLI.o ~ ...~ APPROVED . _ _ _ _ _ _ 4e.,.- e;""EP". "''-O'''''Ul..,C STI'l'UCTU.'iI'S ~ >l"'C-H DENVER, COLORADO, SHEET 4 OF 4 382-0-1384