|
<br />4180 I
<br />
<br />4170
<br />
<br />r" ~"1 . ,\
<br />~~&....
<br />
<br />z
<br />Q
<br />...
<br />~ 4760
<br />'"
<br />-'
<br />'"
<br />
<br />4750
<br />
<br />4140
<br />
<br />AP-164
<br />
<br />0-4' SANDY SILT, approx. 70~ fines, slight 21,sticity; approx.
<br />30~ predominantly fine sadll: max. size fidll sand; light
<br />brown _to- ~a1; firm; Qzy; dense; hOOlogeneous; ground cover
<br />of trees (ML)
<br />4'-6.5' SANDY CLAY, approx. 75~ fines, medium" plasticity;
<br />approx. 25'J. predominantly fine sand; trace of fine gravel;
<br />dark brown to black; moist- (CL)
<br />6.5'-12.5' WELL GRADED GRAVILWITH COBBLES, approx. 70% hard,
<br />rounded to subangular) ce.TaC to fine) granitic gravel;
<br />approx. 20t hard rounded. 1:.0 ',.'&bangular J coarse to fine
<br />sand; approx. lOt.{1onplaat.1c ftnes; trace of 5 to 12-inch and
<br />approx. 5% 3 to 5-:Jnch cobbles; max. size 6 inches; multi-
<br />colored; saturatea; limestone chips present; trace of
<br />sandstone. (GW-G/!)
<br />12.5' -14' WELL GRADED GRAVEL WITH 07BBLES, approx. 65% hard,
<br />rounded to subangular, coaT_ to. fine, granitic gravel;
<br />approx. 35'7.. hard, rounded t,o.-.ul:m.P;gular, coarse to fine
<br />sand; trace of n~lastic fines; ~race of 5 to 12-inch and
<br />approx. 5~ 3 to $-iJlch cobbles; max. size 8 inches;
<br />multicolored; saturated; limestone chips present; a trace
<br />of sandstone. (GW)
<br />14' -17 5' WELL GRADED GRAVEL WITH ~IlBLES, approx. 80% hard,
<br />rou~ded to subangular) coarae to:'_ftne) granitic gravel;
<br />approx. 20'X. hard) rounded to subangular, coarse to fine
<br />sand; trace of nonpJ.aatic f~'; trace of 5 to l2-inch and
<br />approx. 5~ of 3 to 5-:kncb ..,M;l_; max. size 6 inches;
<br />multicolored; satura'ted; liautone chips present; a trace
<br />of sandstone. (GW)
<br />17.5'-19' POORLY GRADED SN'D, approx. 50~ medium to fine
<br />sand; approx. 401 hard) round~ to subrounded) coarse to
<br />fine, granitic gravel; "l'Pro~. 10~ nonplastic fines; max.
<br />size 3 inches; multicolored; saturated. (SP-SM)
<br />19'-21' POORLY GRADEI,l,SIlIlD WITH COBBLES, approx. 65~ hard,
<br />rounded to subangular, coarse to fine, granitic gravel,
<br />approx. 351 medium..!t() fine Bald; a trace of nonplastic
<br />fines; trace of 3 to 5-inch cobbles; max. size 5 inches;
<br />multicolored; saturated. (SP)
<br />REFUSAL ON HARD MATERIAL.
<br />
<br />AP 164
<br />EI. 4767
<br />
<br />T P-133
<br />AP 133A
<br />EI 4767
<br />
<br />G.W.l.
<br />\-25-67
<br />
<br />
<br />,.
<br />19
<br />20,~
<br />
<br />..
<br />G.W.l.
<br />-----"~ .
<br />1-27-68
<br />7.1. .'
<br />9,'
<br />10.~
<br />
<br />6.3~
<br />3 4 66
<br />
<br />\~.~
<br />14.~
<br />
<br />TP-133
<br />
<br />0-2.8' SILTY SAND WITH COBBLES, approx. 40~ angular to sub-
<br />angular, hard, mediun to fine sand' approx. 35% nonplastic
<br />fines, quick dilatancy; approx. 25i angular to subangular,
<br />hard, flat, brittle, coarse to fine gravel; trace of hat~~
<br />flat) brittle cobbles; violent reaction to Rtl; m8X. size'
<br />10 inches; multicolored; firm; moist; dense; heterogeneous;
<br />some calcareous coatings; ground cover of gra.s and trees;
<br />roots. (SM)
<br />2.8'-6.3' SILTY SAND WITH COBBLES, approx. 80~ angular to
<br />subangular, hard) medium to fine sand; approx. 201 non-
<br />plastic fines) quick dilatancy; trace of gravel; trace of
<br />3 to 5-inch cobbles; violent reaction to RC1;.~8X. size
<br />4 inches; brown; saturated; soft; medi\D den.itYL~00t8
<br />~nroughout; calcareous coating on some saod art~ ~vel.
<br />(SM)
<br />
<br />AP-133A DRILLED TO EXTEND EXPlORATION DEP1ll.
<br />6.3'-7.~' POORLY GRADED GRAVEL WITH COBBLES, approx. 55~ hard,
<br />some" brittle, coarse to fine, angular to subrounded, granitic
<br />
<br />g:d:J: :g~l~r f~%s~g~~~~~~~ ~~~~iitc ~~a~ea~~r~~~eIO%oorly
<br />
<br />nonplastic fines; slight reaction to HCl; trace of Itmestone
<br />present in the sand and gravel; approx. 5t 3 to 5- inch hard,
<br />granitic colibles; max. size 4 inches; multicolored; saturated.
<br />(CP-GM)
<br />7.2'-9.2' POORLY GRADED SAND WITH COBBLES, approx. 55~ hard,
<br />some brittl., medium to fine) angular to suhrounded, grill itic
<br />sllnd; appro'X. 40t hard, mediun to fine, angular to sub-
<br />rounded, granitic gravel; approx. 51 nonplastic fines;
<br />trace of 3 to 5-inch hard, granitic cobbles; slight
<br />reaction to HCl; ltmeetone present in the sand and gravel;
<br />max. size i 1/2 inches; multicolored; saturated. (SP)
<br />9.2' -10.5 ' POORLY GRADED SAND WITH COBBLES, approx. 50~ hard,
<br />80me brittle, coarae to fine) angular to subrounded, grani~ic
<br />sand; approx. 45t hard, 80me brittle, coarse to fine, angUlar
<br />to subrounded granitic gravel; approx. 51 nonplastic fin~s,
<br />trace of 3 to 5-inch hard, granitic cobbles; slight reactiim
<br />to HCI; limestone present in the .and and gravel; max. si..
<br />5 inches; multicolored; uturated. ,.(cp)
<br />
<br />10.5'-13.5' POORLY GII.ADED GRAVEL WITH COBBLES, approx. 55~
<br />hard some brittle, coarse to fine) angular to s ubraunded,
<br />granItic gravel; approx. 40~ hard, coane to fine, angular
<br />to subrounded, granitic sand; approx. 5~ nonplastic fines;
<br />tr.ce of 5 to 12-inch and approx. 5~ 3 to 5-inch hard,
<br />ar""itic cobbles; slight reaction to HCl; limestone present
<br />In the sand and gravel; max. size 7 inches; multicolorMi;
<br />saturated. (GP)
<br />13 j 5 '-14.5' POORLY GRADED GRAVEL WITH COBBLES, approx. 60~
<br />hard, some friable, coarse to fine, angular to subrounded,
<br />granitic gravel; approx. 35'%. hard) scme friable) coarse
<br />io fine, angular to subrounded, p'aQ,itic sand; approx. 5t
<br />nonplastic fiftea; trace of 5 to ,12-ipch, and approx. 5~
<br />3 to 5-inch cobbles; slight reactlon to HCl; limestone
<br />present in the sand and gravel; max. size 6 inches;
<br />multicolored; saturated. (CP)
<br />14.5' -18' POORLY GRADED SAND WITH COBBLES, approx. 50~ hard,
<br />SCDe brittle) coarse to fine) angular to subrounded)
<br />granitic sand; approx. 451 hard) some brittle, coarse to
<br />fine angular to subrounded, granitic gravel; approx. 51
<br />nonplastic fines; trace of 5 to 12-inch) and approx. 51
<br />3 to 5-inch hard, granitic cobbles; slight reaction to
<br />Hel; limestone present in the sand and gravel; max. size
<br />6 inches; multicolored; satursted. (SP)
<br />18'-19' POORLY GRADED GRAVEL WITH COBBLES, approx. 50~
<br />hard, SCIIle brit-tIe, coarse to fine, angular to subrounded,
<br />granitic gravei. approx. 45~ hard, sOllIe brittle, coarse to
<br />fine, poorly ~~4ed, angular to subrounded, granitic
<br />sand; approx. '7; nonplaetic fines; trace of 5 to 12-incll
<br />and approx. 5~ ~ to 5-inch hard, granitic cobbles; s11ght>
<br />reaction to HCll limeetone present in the sand and gravel;
<br />max. size 5 inclle~ multicolored; saturated. (CP)
<br />19'-20.5' SHAJ,.E
<br />Auger hole was f,llled with water to the ground surfa.ce to
<br />prevent the sid.. from s luffing during excavation. Some
<br />s luffing occurred. Water was encountered at 6.0 feet.
<br />After a 10 minula, time lapse the water had risen to 5.0
<br />feet and r~ained at that level.
<br />STOPPED IN ASSUMED FORMATION.
<br />
<br />TP-134
<br />AP-134A
<br />E I. 4769
<br />
<br />,~i~',-~.:
<br />
<br />6.3---->--~~~
<br />3-1-66
<br />ANn
<br />3-20-69
<br />
<br />
<br />TP-134
<br />
<br />SECT ION 20-20
<br />
<br />0-6.3' LEAN CLAY, approx. 85~ fines, medium plasticity" medium toughness,
<br />high dry strength; approx. 15~ angulart hard;. fine sand; trace of
<br />hard) subrounded, coarse to fine grave; max. size 3 inches; brown;
<br />firm to saft; wet; dense; homogeneous; calcite blotches; cultivated
<br />fieldj fine grass roots throughout. (CL)
<br />6.3'-7.6 CEMENTED CALCITE CLAY, saturated.
<br />AP-134A DRILIED TO EXTEND EXPLORATION DElTII
<br />7.6'-11' POORLY GRADED SAND, approx. 451. hard, some brittle, coarse to
<br />fine, angular to subrounded, granitic sand; approx. 45% hard, some
<br />brittle, coarse to fine, poorly graderi, angular to subrounded,
<br />granitic gravel; approx. lO'%. nonplastic fines; trace of limestone
<br />in the sand and gravel; multicolored; saturated. (SP-SM)
<br />11' -15' POORLY GRADED GRAVEL WIm COBBLES, approx. 551. hard, some
<br />brittle, coarse to fine, angular tD subrounded, granitic gravel;
<br />approx. 35~ hard, some brittle, coarse to fine,' poorly graded,
<br />angular to sub rounded , granitic sand; approx.' 107.. nonplastic
<br />fines; trace of 3 to 5.. inch hard, granitic cobb les; s light reaction
<br />to HCl; trace of limestQne in the 3and and gravel; max. size 4
<br />inches; multicolored; saturated. (GP-GM)
<br />>15' -18. 3' POORLY GRADED GRAVEL WITH COBBLES. appro". 607. hard. some
<br />brittle, coarse to fine, angular to subrounded) granitic gravel;
<br />approx. 35t hard, some brittle, coarse to fine, poorly graded,
<br />angular to subrounded, granitic sand; approx. 5'%. nonplastic fines;
<br />approx. 5'%. 3 to 5-inch hard, granitic cobbles; moderate reaction
<br />to Rei; trace of limestone in the sa~d and gravel; max. size
<br />5 inches; multicolored; saturated. (GP)
<br />18.3'-20.5' POORLY GRADED GRAVEL WIm COBBLES, approx. 65% hard. some
<br />brittle, coarse to fine, angular to subrounried, granitic gravel;
<br />approx. 30% hard) some brittle) coars.e to fine, poorly graded,
<br />angular to sub-rounded, granitic sand; approx. 57. nonplastic finea;
<br />trace of 5 to l2-inch, and approx. 5% 3 to 5-inch hard, granitic
<br />cobbles; alight reaction to HCl; tract! of limestone in the sand
<br />and gravel; max. size 6 inches; multicolored; saturated. (GP)
<br />20.5'-23.5' POORLY GRADED GRAVEL WITH C~BBLES, approx. 65~ hard,
<br />som4! brittle, coarse to fine, angular to subrounded, granitic
<br />gravel; approx. 30t hard) some brittle) coarse to fine, poorly
<br />graded, angular t~ subroundedt granitic sand; approx. 5~ non-
<br />plastic fines; trace of 5 to 2-.inch, and approx. 10"%. 3 to 5-inch
<br />hard, granitic cobbles; slight reaction to HClt. trace of limestone
<br />in the. sand and gravel; max. size 8 inches; mu ticolored;
<br />saturated. (GP)
<br />23.5'-24.4' SHALE
<br />
<br />....u hole _. filled with _ter to tha groUtld surface to prevent
<br />the aid.. from sluffins during excavation. Some sluffing .occurred.
<br />Water level _s encountered at 6.8 feet. After a 10 minute time
<br />lapse the watar level bad ria.., to 6.0 feet, and r_ined at that
<br />level. Changed from a 30- inch dia. bucket auger to a 24- inch dia.
<br />bucket auger at 11. 0 feet.
<br />STOPPED IN ASSUMED FORMATIQI(.
<br />
<br />A P-162
<br />E1.4772
<br />
<br />TP-135
<br />AP-135A
<br />EI,4772
<br />
<br />
<br />7.7~ 4G":;'_~9
<br />
<br />AP-162
<br />
<br />0-4' LEAN CLAY, approx. 901. fines,
<br />medium to high plasticity; .pprox. 10"%.
<br />predcminantly fine sand;, max. size
<br />fine sand; gray; firm; dry; dense;
<br />homogeneous; ground cover of grass;
<br />grass roots in top 1. 0 foot. (CL)
<br />4'-7.2' LEAN CLAY. approx. 90"%. fines,
<br />medium plasticity; approx. 10"%.
<br />predominantly fine sand; max. size fine
<br />sand; brown; moist. (CL)
<br />7.2' -8.4' SANDY CLAY, approx. 75~ fines,
<br />medium plasticity; approx. 25~ pre-
<br />dominant ly fine sandi trace of fine
<br />aravel; malt. size 1/;[, inch; brown;
<br />moist. (CL)
<br />8.4'-10.2' LEAN CLAY, approx. 85~ fines,
<br />high plasticity; approx. 10"%. medium
<br />to fin-: sand; approx. 51 fine gravel;
<br />max. Sl.ze 1 l.nch; brownish gray; moist
<br />to saturated. (CL)
<br />10.2' -13 . 5 ' POORLY GRADED SAND, approx.
<br />90'%. medium to fine sand; approx. 101.
<br />nonplastic fines; trace of fine
<br />granitic gravel; max size 1 inch;
<br />multicolored; saturated. (SP-SM)
<br />13.5'-15.6' POORLY GRADED SAND, approx.
<br />65% hard, coarse to fine sand;
<br />approx. 35% hard, rounded to 8ub-
<br />angular, predominantly fine)
<br />granitic gravel; trace of non-
<br />plastic fines; max. size 3 inches.
<br />multicolored; saturated; many ,
<br />limestone chips. (SP)
<br />15.6'-23.7' POORLY GRADED GRAVEL WITH
<br />COBBLES, approx. 60"%. hard, rounded
<br />to subangular) coarse to fine) granitic
<br />gravel; approx. 35't bard, rounded to
<br />subangular) coarse to fine sand; trace
<br />to 5~ nonplastic fines i trace of 3 to.
<br />5-inch cobbles; max. sue 4 inches;
<br />_J1t1c:olor...; saturated; U.eat.....
<br />d1ips VJ:....t; dri lIed bar-. from
<br />16.0 to 23.7 feet. (IlP)
<br />REFUSAL ON HARD MATERiAt..
<br />
<br />NOTES
<br />
<br />For location of explorations, see Dwg, 382-0-737,
<br />8-17-66 Ground water not encountered on dote indicated,
<br />,':,=.. Ground wafer level naf determined on date indicated,
<br />
<br />14-8~~7~'68~Ground water level on dote indicated.
<br />
<br />For logs of dri II holes, prefixed OH, see Geologic Logs
<br />of Exploration following fhe drawings in the specifications,
<br />Letter symbols in parentheaes, following the
<br />soil descriptions in the logs, are group s}'lll-
<br />bola of the Unified Soil Classification
<br />System based on field identification. Copiee
<br />of Drewing No. 103-0-347, Unified Soil
<br />Classification, mey be obtained on request
<br />to Chief Engineer, Bureau of Reclamation,
<br />Denver, Co10r"do 80225.
<br />
<br />'l oaR G W
<br />
<br />
<br />--'-TP-136---'
<br />AP-136A
<br />EI. 4775
<br />
<br />7.3 -V 3 ~',~'-\i9
<br />
<br />_G~~
<br />2-8-68
<br />AND
<br />3-18 -69
<br />
<br />12
<br />13,5
<br />
<br />-, 8,: 9-- ~ G~L ~
<br />2-28-66
<br />
<br />,.
<br />17,3
<br />19
<br />19'.8
<br />
<br />..
<br />22.2 ..
<br />
<br />27
<br />
<br />TP-135
<br />
<br />0-7.5' LEAN CLAY, approx. 957.. fines, medium plasticity, medium to high toughness, approx.
<br />51 angular, hard, fine sand; medium reaction to Hel; max. size fine sand; multicolored'
<br />wet; firm; dense; mottled; calcite st.reaks and blotches~ cultivated field small roots'
<br />~W ., .
<br />AP-135A DRILIED 'l'() EXTEND EXPLORATION DEPm
<br />7.5'-9' LEAN CLAY, apprcx. 95'\ fines, slight to medium plasticity, medium toughness,
<br />medium to high dry strengthj. slow dilatancy; approx. 51 fine sand; slight to moderate
<br />reaction to Hel; max. size medium sand; brown; firm; wet; dense; mottled~ b~otched with
<br />calcite streaks. (CL) ,
<br />9'-10.5' POORLY GRADED SAND, approx. 65'1 hard, some brittle, coarse to fine, alngular to
<br />subrounded) granitic Silnd; approx. 251 hard, soate friable, coarse to fine) poorly
<br />grade~, angular to subrounded, granitic gravel; approx. 101. nonplastic fines,; moderate
<br />react1.on to Hel; trace of limestone in the sand and gravel; max. size 2 inches; multi-
<br />coloredj saturated. (SP-SM)
<br />10.5'-11.5 POORLY GRADED SAND, approx. 601 hard, some brittle coarse to fine~ angular
<br />to subrounded, granitic sand; approx. 301 hard) some brittle: coarse to fine< poorly
<br />grade~, angular to subrounded, granitic gravel; approx. lot nonplastic fines; slight
<br />react~on to Hel; trace of limestone in the sand and gravel; max. size 2 inch,es; multi-
<br />coloredj saturated. (SP-SK)
<br />11.5'-13.5 POORLY GRADED SAND WIm COBBLES, appro". 55~ hard, sOllIe brittle, c<oarse to
<br />fine, angular to subrounded granitic sand; approx. 40% hard some brittle cloarse to
<br />f~ne, poorly graded, angular to subrounded, granitic gravel; approx. 51 n~nplastic
<br />f~nes; trace of 3 to 5...inch hard granitic cobbles; moderate reaction to ReI; trace of
<br />lpnes~one in the sand and gravel; max. size 3 1/2 inches; multicolored. satu:rated. (SP)
<br />13.5 -14 POORLY GRADED SAND, approx. 651. hard, some brittla, COflrse to line, ..ngular
<br />to sub rounded granitic sand; .pprox. 301 hard, some brittle, coarse to fine, poorly
<br />graded, angular to subrounded, granitic gravel; approx. 5'%. nonplastic fines; moderate
<br />reaction to He1; trace of limestone in the sand and gravel; max. size 2 1/2 inches.
<br />multicolored; saturated. (SP) ,
<br />14'-16' POORLY GRADED SAND WITH COBBLES, approx. 55~ hard sOllIe brittle coarse to fine
<br />angular to subrounded, granitic sand; approx. 40'%. bard,) some brittle,' coarse to fine,'
<br />poorly graded. angular to subroUDded, granitic gravel; approx. 51 nonplastic fines;
<br />trace of 5 to l2-inch and approx'O 51 3 to 5-inch hard, granitic cobbles; moderate
<br />reaction to HCl; trace of lime.tone in the sand and gravel; max. size 6 inches;
<br />multicolored; satur.ted. (SP)
<br />16' -18' POORLY GRADED GRAVEL Wlm COBBIES, approx. 60"%. hard, sOllIe brittle coarse to fine
<br />angular to subrounded, granitic gravel; approx. 35'%. hard, some brittle,' coarse to fine))
<br />poorly graded, angular to subrounded, granitic sand; approx. 51 nonplastic fines'
<br />trace of 5 to l2-inch and approx. 51 3 to 5-inch hard, granitic cobbles; moderat~
<br />reaction to HCl; trace of limestone in the sand and gravel; max. size 6 inches; multi-
<br />colore<l; saturated. (GP)
<br />18'-21.5' POOIll.Y ~ llLWEL WITH COIIIUl$, approx. 651 hard, ...., brittle coarse to
<br />fine, a'n!Ul.- to lulIroUlUIad) panitic sravel; approx. 301 hard) aome brittle" coarse to
<br />fif!:e, poorly Kt'aded) angular t08.Jbrounded) granitic sand; approx. 51 nonplastic fines;
<br />trace of 5 to I2-inch and appro". 10"%. 3 to 5- inch hard granitic cobblea; moderate
<br />reaction to HCI; trace of limestone in the .and and gravel; mu. size 7 inches' multi-
<br />colored i lIa'turated. (GI') ,
<br />21.5'-26.3 POORLY GRAIlI!D GIlAVEL WInt COBBLES, approx. 8O'L hard sOllIe brittle coarse to
<br />fine~ angular to suhrounded, sranltic gravel; approx. 15X hard) same brlttl~), coarse to
<br />fine) poorly graded, angular to subroundftd, aranitic lIand; approx. 5'%. nonplasitic fines;
<br />trace of 5 to 12-inch and iCx. 10~ 3 to 5-inch hard, granitic cobbles; modlerate
<br />~~!~;~~ ~~t~;i~~ac(cP~ 1 tone in the .and and gravel; max. size 7 inche~s; multi-
<br />26.3'-29' POORLY GRADED GIlAVEL WITH COBBLES, approx. 65~ hard, sOllIe brittle, cmarse to
<br />f~ne, angular to lubrounded, granitic grcvel; approx. 301 hard, same brittle" coarse to
<br />f1ne, poorly graded, angular to aubrounded, granitic sand; approx. 51 nonplasltic fines;
<br />trace of 5 to 12-inch and approx. 10~ 3 to 5-inch hard, granitic cobbles; modlerate
<br />reaction to HCI; trace of liaestone in the .and and Favel; max. size 9 inchees' multi-
<br />colored; .aturated. (GP) ,
<br />Auger hole wa. filled with water to the ground surface to prevent the sides f'rom
<br />sluffing durinS excavation. SOllIe sluffin3 occurred. Water was encountered alt 8.5 feet.
<br />~~. a 5 ainute time lapae the water ha riaen to 7.5' feet and remained at ,that
<br />Changed from a 3D-inch dia. bucket auger to a 24-inch dia. bucket auger at 181 0 feet
<br />STOPPED ON ASS1H!D FOIlMATIOIl. . .
<br />
<br />100 0 100
<br />I", ,I", I [
<br />HORIZONTALL S~ALE OF FEET
<br />10 0 10
<br />11",\""\ \
<br />VERTICAL SCALE OF FEET
<br />
<br />
<br />P
<br />77Zo 89
<br />
<br />4780
<br />
<br />4770
<br /> Z
<br /> 0
<br /> ...
<br />4760 ..
<br />>
<br /> '"
<br /> -'
<br /> '"
<br />4750
<br />
<br />4740
<br />
<br />TP-136
<br />
<br />0-9' LEAN CLAY, approx; 95% fines, meditm to high plasticity medi1.DD
<br />toughness; approx. 57.. hard, fine, angular sand; mediun rea~tion to
<br />HC~;.max. size fine sand; multicolored; wet; soft; dense; mottled'
<br />9' ca~ clte streaks and blotche;;; some roots; cultivated field. (eL))
<br />- I? SAND,! CLAY, app:ox. 50%. ~a:d) fine, angukr sand; approx ~ 50%
<br />f:nes, sllght ~o med1.tml plastlC1.ty) slight to medi1.m toughness slow
<br />d~la~ancYj mednm to.rapid reaction t.o Rei; max. size fine sand'
<br />multIcolored; wet; f1.rm; dense; mottled; calcite blotches. ceme~ted
<br />strata at 9.0 to 9.7 feet; fine roots (SC-CL) )
<br />AP-136A DRILLED TO EXTEND EXPLORATION DEPTH
<br />12' -13.5 I LEAN CLAY, approx. 95% fines, medium plasticity medi1..UD
<br />toughn~ss, high dry strength; approx. 5"/" fine sand; slight reaction
<br />to HC1, carbonaceous seams throughout; max. size No 50 sie e' b .
<br />s.:.turated. (CL) " v, rown)
<br />13.51-16' SILlY SAND, approx. 5570 hard, some brittle meditm to fine
<br />p~orly gr":lded, angu~a~ to subrounded, granitic sand; approx. 25% '
<br />fInes, s Ilght plastlclty J, s light toughness, quick dilatancy low
<br />dry strength; approx. 20% hard, Some brittle, medium to fin~,
<br />poorlr graded, angular ~o subrounded, granitic gravel' slight
<br />~~~)t10n to HC1; max. SIze 2 inches; multicolored; saturated.
<br />
<br />16' -17,3' SIL~Y SAND WITH COBBLES, approx. 55"(" hard, SQll\e brittle
<br />coarse to flne, foorly graded, angular to subrounded granitic '
<br />sand; approx. 30% hard, Some brittle, co~rse to fine: poorly
<br />graded, ":lngu~ar to subrounded, granitic gravel; approx. 15%
<br />nooplastlc. f:nes; trace of 5 to 12-inch and approx. 5% 3 to S-inch
<br />hard, gra~lt:c cobble~; slight to moderate reaction to Hel;
<br />apprc?x. 570 lunestone 1.n the sand and gravel' max. size 6 inches.
<br />mult lcolored; saturated (SM) , )
<br />17.3'-19' POORLY ~ED SMlD WITH COBBLES, approx. 60% hard, Some bri-
<br />~~qeh c~arse to f~ne, angular to subrounded, granitic sand; approx.
<br />-'l._,,- ar, some br1.ttle, coarse to fine, poorly graded angular to
<br />~ul'ro~2d~d) granitic gravel; approx. 10% nonplastic fines; trace of
<br />to -1.nch and a trace of 3 to 5-inch hard granitic cobbles'
<br />modera~e react~on to. HCl; trace of limestone' in the sand and '
<br />Igrave~, max. S1.ze 6 1.nches; ~ulticolored; saturated. (SP-SM)
<br />19 -19.8 POORLY GRADED GRAVEL WITH COBBLES
<br />brittle) coarse to fine, angular to 8\lbr~n~~ro:;~~~i~rd) are
<br />approx. 40% hard, sane brittle, coarse to fine' oorl ~:~e;
<br />~~~~a~f t~ ~~~~~de~) ~&n1t1c .ang; approx. ioi non~l~tic fines.
<br />bbl nc an approx. 54 3 to 5- inch hard graniti '
<br />c~ es; slight to moderate reaction to HCI' trace of limest c i
<br />(C:_~d and gravel; max. si~e 6 inch..; muiticolored; satur~~:d.n
<br />
<br />19.8'-22.2' POORLY GRADED GRAVEL WITH COBBLES ~
<br />some brittle, coarse to fine, angular to subr~~~~~' ~an~d)
<br />gravel; approx. 401 hard, sOIne brittle, coarse to fine oor~
<br />graded) angular to 8ubrounded, granitic sand' a ox. io~ y
<br />nonplastic fines; trace of 5 to l2-inch and ~pp~~ 51 3 t 5
<br />~tC~~ard granitic cobbles; slight reaction to HCl: approxo -
<br />estone in the sand and gravel' max s1 6 i' h .1
<br />c~lor~d; saturated. (GP-GH) ,. ze DC es; mu t1-
<br />22'f -27 b Could not drill this strata with bucket auger due to
<br />2f~e /0 bles and/or boulders. Used a 3-foot tapered auger to
<br />... eet. Unable to recover samples.
<br />Auger hole wa filled with water to the ground surface to
<br />"1::ffi\ttha aides frOlll sluffing during excavation. Some
<br />8 ng occurred. Encountered water level at 13 5 feet
<br />After a 15 minute tiae lapse the water had rl sen to . 4 fe t
<br />and r_ined at that level. Chanlled fram a 30-inch t' e
<br />24-inch dia. bucket aupr at 16 0 feet 0 a
<br />IlEPUSAL ON IWID MATERIAL. . .
<br />
<br />ALWAYS nunK SAfETV
<br />
<br />.00
<br />I
<br />
<br />UNITED STA TES
<br />DEPARTMENT OF THE INTERIOR
<br />BUREAU OF RECLAMATION
<br />
<br />FRYINGPAN- ARKANSAS PROJECT- COLORADO
<br />
<br />PUEBLO DA M
<br />LOGS OF EXPLORATIONS FOR
<br />WALKING .0. AREA
<br />SECTION 20-20
<br />
<br />.0
<br />,
<br />
<br />DRAWN A.G. _SUBMITTED_. ~~_ _ _ _ _
<br />TRACED -!." ~._W: _ _ _RECOMMENDED~~,J:'/_ ~
<br />CHECKED_ ;-:"W_k.. - C"'~.'---~M~ - - - - - --_
<br />
<br />382 0 751
<br />
<br />OENVER, COLORADO.
<br />
<br />MARCH 3, I...
<br />
|