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Home My WebLink About20021908.tiff _ APPENDIX H Pond Construction Reports 2002-1908 GROUNDWATER TECHNOLOGY chen and associates, inc. - torCONSULTING ENGINEERS c. SOIL t FOUNDATION L' GINEERING 96 SOUTH ZUNI STREET • DENVER, COLORADO 80223 • 303/744-7105 January 15, 1980 Subject: Permeability Test, Weld • County Disposal, West of Hudson, Weld County, Colorado. Job No. 19,477 Weld County Disposal P.O. Box 304 Fort Lupton, Colorado 80621 Gentlemen: As requested, we performed a permeability test on a sample of the bentonite—sand liner material secured during our visit on December 24, 1979. The sample was remolded to density 109.3 pcf at 7.1€ moisture, or approximately 96€ of standard Proctor density, and subjected to a 500 psf surcharge loading. The permeability rate was measured between December 31, 1979 and January 9, 1980 and found to be approximately 2 x 10-7 cm./sec. This rate is generally considered to be relatively impervious. If you have any questions, or if we can be of further service, please call. Sincerely, CHEN AND ASSOCIATES, INC. By Steven L. Pawlak, P.E. SLP/bn OFFICES: COLORADO SPRINGS, COLORADO / GLENWOOD SPRINGS, COLORADO / CASPER, WYOMING 0 lie, then and associates, inc. F CONSULTING ENGINEERS SOIL i FOUNDATION ENGINEERING 96 SOUTH ZUNI STREET • DENVER, COLORADO 80223 • 303/7447105 February 14, 1980 Subject: Pond Liner Material, Weld County Disposal, West of Hudson, Weld County, Colorado. Job No. 19,477 Weld County Disposal P.O. Box 304 — Fort Lupton, Colorado 80621 Gentlemen: As requested, we visited the subject site on February 14, 1980 to visually inspect completion of cover material placement. We previously recommended additional cover material placement in our letter dated February 1, 1980. At the time of our site visit, the final section of cover material had been placed on the northern slope. The cover material consisted of miscellaneous on-site sands and was at least 3 to 4 inches deep. This depth should be adequate. If you have any questions, or if we can be of further service, please call. Sincerely, CHEN AND ASSOCIATES, INC. By Steven L. Pawlak, P.E. SLP/bn cc: Colorado State Department of Health Attention: Mr. Chuck Roberts OFFICES: COLORADO SPRINGS, COLORADO / GLENWOOD SPRINGS, COLORADO / CASPER, WYOMING cit oi fa, chen and associates, inc. CONSULTING ENGINEERS % l,` , SOIL t FOUNDATION ENGINEERING 96 SOUTH ZUNI STREET • DENVER, COLORADO 80223 • 303/7447105 March 19, 1980 Subject: Bentonite Quantity, Proposed Evaporation Pond, Weld County Disposal, Weld County, Colorado. Job No. 19,477 Weld County Disposal P.O. Box 304 Fort Lupton, Colorado 80621 Gentlemen: As requested, we have performed quantity calculations for the bentonite required to line the proposed pond. ReLLu.nendations for embankment construction are presented under our Job No. 19,030, dated August 29, 1979. We understand the proposed pond will have a bottom plan area of 400 by 500 feet. Recommended slopes of 3:1 (horizontal to vertical) will be used. Total embanlanent height will be 10 feet. Based on these dimensions and an assumed free board of 2 feet, a total of 1,000 tons of processed bentonite material will be required for the recommended application rate of 8 lbs. psf. If you have any questions or if we can be of further service, please call. Sincerely, CHEN AND ASSOCIATES, INC. By Steven L. Pawlak, P.E. SLP/lmt • OFFICES: COLORADO SPRINGS, COLORADO / GLENWOOD SPRINGS, COLORADO / CASPER, WYOMING chen and associates, C • E_ CONSULTING ENGINEERS r'•:��' SOIL&FOUNDATION 96 S. ZUNI • DENVER, COLORADO 80223 • 303/744-7105 ENGINEERING INVOICE FOR PROFESSIONAL SERVICES To: elr' ✓u—:t , _is:osal :;Ovc-!.cr ?^ , 1:'7n For: L_-,ron , Ccltra. o Job No. I. 77 Invoice No. tr^i _::Jcrntor• •Ie tine, ..c1r ourty ';is::esal , ?rest of Nucson, l!e1C _ 11/1::!7: Ficic Trio ÷ 1 .'r: I 1 Sieve Analysis (-1= to . _ "`) ^.C:1 1 Att'crr•err Lir.its 1 Stna.arC , roctcr :orrct inn ,'I i_,. 1. ri 1:_.•— _ .'�,•I:ti nr, OFFICES: COLORADO SPRINGS • GLENWOOD SPRINGS, COLORADO • CASPER,WYOMING • SALT LAKE CITY,UTAH Cc_m then and associates, inc. CONSULTING ENGINEERS • sou a FOUNDATION 96 S. ZUNI • DENVER, COLORADO 80223 • 303/764-7105 ENGINEERING INVOICE FOR PROFESSIONAL SERVICES To: Welt County Disposal Deceober 31 . F:7' P. C. Ilex 3314 Fort Lupton, Colorado Job No. l ; t,?- Invoice No. 51.1.2 Port Liner tl_terial , .cld County Disposal , West of Hudson, Veld County, Colorado. lC/4/7 Letter - Senior Project Engineer 1? Hr. ? 3".00/hr. $ 57.00 12/2L1.73 Size Visit c Letter Senior Project Encineer 3: Hr. i 3' .03/hr. 133.003 Mileage 60 Mi . - Jmi . 15.00 TOTAL NE $ 20'.03 OFFICES:COLORADO SPRINGS • GLENWOOD SPRINGS, COLORADO • CASPER,WYOMING • SALT LAKE CITY, UTAH CL-+, - chen and associates, inc. CONSULTING ENGINEERS 0 SOIL&FOUNDATION 96 S. ZUNI • DENVER, COLORADO 50223 • 303/744-7105 ENGINEERING I, INVOICE FOR PROFESSIONAL SERVICES { To: Weld County Disposal January 30, 1980 P. O. Box 304 Fort Lupton, Colocsdo 80621 Job No. 19,477 Invoice No. 5592 1 Permeability Test, Weld County Disposal , West of Hudson, Weld County, Colorado. LABORATORY TESTING —i Permeability Tests 1 Test @ 150.00 ea. • $ 150.00 ENGINEERING Project Engineer 2 Hr. @ 38.00/hr. 76.00 TOTAL DUE $ 226.00 OFFICES:COLORADO SPRINGS • GLENWOOD SPRINGS, COLORADO • CASPER,WYOMING • SALT LAKE CITY,UTAH cc- = chen and associates, inc. CONSULTING ENGINEERS •••� SOILtFOUNDATION 96 S. ZUNI • DENVER, COLORADO 90223 • 303/744-7105 ENGINEERING INVOICE FOR PROFESSIONAL SERVICES — To: Weld County Disposal • January 31, 1980 = P.O. Box 304 Lort Lupton, Colorado Job No. 194477 Invoice No.5709 — Pill Control, Pond liner Material, Weld County Disposal, West of Hudson, Weld• County, Colorado. , . 1/10/80 Field Trip + 2 Hrs. @ 19.00/1Ir. $ • 93.00 =_ 1/31/80 Field Trip + 2 Hrs. Q 19.00/Hr. • 93.00 Senior Project Engineer 1 Hr. @ 38.00/lir. 38.00 TOTAL $ 224.00 OFFICES: COLORADO SPRINGS • GLENWOOD SPRINGS, COLORADO • CASPER;WYOMING • SALT LAKE CITY,UTAH c> _ I Chen and associates, inc. E- CONSULTING ENGINEERS SOIL IL FOUNDATION 96 S. ZUNI • DENVER, COLORADO 60223 • 303/744-7105 ENGINEERING INVOICE FOR PROFESSIONAL SERVICES — i To: weld County Disposal February. 29, 1980"_" P.O. Sox 304 Fort Lupton, Colorado 80621 Job No. 19,477 Invoice No. 5870 Pond Liner Material , Weld County Disposal , West of Hudson, Weld County, Colorado. ^_/14/ 0 Senior Project Engineer 1 Hr._ @ 38.00/Hr. $; 33.00 TOTAL $ 38.00 `` r OFFICES: COLORADO SPRINGS • GLENWOOD SPRINGS, COLORADO • CASPER,WYOMING • SALT LAKE CITY,UTAH C. - chen and associates, inc. s 40 Y. CONSULTING ENGINEERS SOIL FOUNDATION 96 S. ZUNI • DENVER, COLORADO 80223 303/744-7105 ..• ENGINEERING INVOICE FOR PROFESSIONAL SERVICES trY To- Weld County Disposal November 21 , 1980 w P.O. Box 304 Fort Lupton, Colorado Job No. 19,477 t 19,030 Invoice No. 7641 _ Copies of 19,477 12 @ 3.00 ea. S 36.00 Copies of 19,030 12 @ 3.00 ea. : !: 36.00 :- TOTAL DUE S 72.00 OFFICES: COLORADO SPRINGS • GLENWOOD SPRINGS, COLORADO • CASPER,WYOMING • SALT LAKE CITY,UTAH chen and associates, Inc. CONSULTING ENGINEERS Is SOIL&FOUNDATION 96 5. ZUNI • DENVER, COLORADO 80223 303/744-7106 ENGINEERING INVOICE FOR PROFESSIONAL SERVICES To: Weld County Disposal March 31 , 1980 P. O. Box 304 Fort Lupton, Colorado 80621 Job No. 19,477 Invoice No. 5972 Letter on Bentonite Quantity, Proposed Evaporation Pond, Weld County Disposal, Weld County, Colorado. _ - r -Letter Dated March 19, 1980. $ 20.00 - OFFICES:COLORADO SPRINGS • GLENWOOD SPRINGS, COLORADO • CASPER,WYOMING • SALT LAKE CITY,UTAH CA-I9 chen and associates CONSULTING GEOTECHNICAL ENGINEERS 96 SOUTH ZUNI STREET•DENVER.COLORADO 90223•9031746.7105 October 30, 1980 Subject: Pond Liner Construction, Weld County Disposal, West of Hudson, Weld County, Colorado. Job No. 20,674 Weld County Disposal P.O. Box 307 Fort Lupton, Colorado 80621 Gentlemen: As requested, we performed a permeability test on a sample of the bentonite-sand liner material at the north half of the pond. The results of this test were presented in our letter dated August 28, 1980. Samples of the bentonite-sand liner obtained from the south half of the pond on October 13, 1980 indicated Atterberg limits and silt- - clay contents similar to those of the sample tested for permeability. In our opinion, the permeability rate of the material placed in the south half of the pond is similar to that of the material placed in the north half. If we can be of further service, please call. Sincerely, CHEN AND ASSOCIATES, INC. By Al Romero AR/bn Rev. By: D.H.A. OFFICES: CASPER • COLORADO SPRINGS • GLENWOOD SPRINGS • SALT LAKE CITY chen and associates CONSULTING GEOTECHNICAL ENGINEERS Ile SOUTH ZUNI STREET•DENVER,COLORADO WZZD•30317447105 August 28, 1980 Subject: Pond Liner Construction, Weld County Disposal, West of Hudson, Weld County, Colorado. Job No. 20,674 Weld County Disposal P.O. Box 304 Ft. Lupton, Colorado 80621 Gentlemen: As requested, we observed construction of the pond liner at the subject site on July 1 and August 13, 1980. We previously conducted similar inspections for a pond to the west of the subject pond, reported under our Job No. 19,477. The subject pond will be on the order of 260' x 500' in plan dimensions and 10 feet in depth. Project specifications call for a 7-inch thick bentonite sand liner compacted to a minimum of 95% standard Proctor density. Seven pounds per cubic foot of bentonite is required to be mixed with the on site silty sand. After construction of the compacted bentonite sand liner, a loose soil layer should be placed on top of the liner for protection. _ At the time of our osbervation on July 1, 1980, a total of 9 in- place density tests were taken in the bentonite sand liner. Results of this testing are presented on the attached Daily Report 1. Test results indicate compaction of the liner to be generally good. Typical material encountered during testing was sampled and tested in our laboratory in accordance with ASTM procedures to determine moisture- density relationships. Results of this testing are attached. In addition to the compaction tests taken, 6 samples of the liner material were obtained and tested in our laboratory to determine if the bentonite has been uniformly mixed into the natural sands. Results of this testing are presented on Table 1. These tests indicate an erratic mixture of the bentonite material. Two of the samples were nonplastic and showed a very low percentage of fines. Field observations also indicated the bentonite was in lenses and did not appear to be uniformly mixed. In addition, the liner was found to be on the order of 6 to 10 inches thick with the upper 2 to 3 inches consisting of loose uncompacted material. This resulted in an average compacted liner thickness of 4 to 5 inches which is less than that specified. It was recanmended that the entire pond be remixed and the upper loose soils compacted to develop the specified liner thickness. OFFICES: CASPER • COLORADO SPRINGS • GLENWOOD SPRINGS • SALT LAKE CITY Weld County Disposal August 28, 1980 Page 2 We again observed pond construction on August 13, 1980 to test compaction of the liner material and to observe the mixing of the bentonite. Compaction test results presented on Daily Report 2, generally indicate good compaction with the exception of a test taken in the northeast corner of the pond bottan. Six samples of the liner material were obtained and tested in our laboratory to determine the uniformity of the bentonite sand liner material. Results of this testing are also presented on Table 1. Test results indicate generally good bentonite mixture over the north half of the pond and poor mixture over the south half. Approximately 1 to 2 inches of standing water was found over a large area in the southeast portion of the pond which prevented testing and observation of the liner material. We recanuend that the entire south half of the pond be reworked and recxmpacted. It may be necessary to add additional bentonite to this half of the pond. The thickness of the compacted liner varied fran 5 indies to 8 indies in the areas sampled. From 1 to 3 inches of loose material was found on top of the compacted liner. We recamnend this loose material be compacted to provide the rew,uuended 7-inch canpacted liner thickness. In addition to the above testing, a sample of the liner material was obtained on our July 1 visit fran the center of the pond for purposes of conducting a permeability test. The sample was remolded to approximately 96% of standard Proctor density at optimum moisture content and subjected to a 144 psf surdiarge loading. The permeability rate was measured between July 15 and August 15, 1980, and found to be approximately 2.3 x 10-8 an./sec. This rate is generally considered to be impervious. We believe a properly mixed and compacted liner material should perform properly. If you have any questions or if we can be of further service, please call. Sincerely, CHEN AND ASSOCIATES, INC. BY David H. Adams II, P.E. DHA/int Encl. — I L C. • Y N L- O U 3 O L a Co L i-e — ^ O 03� tC > vE m E m 2 - o ep 0 r— a O e°i� c a0+ E Q > - W W C 0 ^ w O C W b co N Y = a 2 Z — C > _ < Ln O lb T `— a) a > o I-- 0 = y v tN > — > in m 1\ w L0) a + + C O ec en P, rn O r''0— 0 0 ? '.O CO LA •O c c ? p m Ti 2-# O O 01 01 01 01 01 1 en E c - 01 r O sal 1) o N N ¢ CI 3 `o c ; 0 0. LL I - o w p ¢ U 0 0 OJ cz ? O ? ? LA 01 o = v o CO m y N I .� _ N L!1 of of a E O' Zr y x s0 N an co 17. TS CO 10 en — f� — 01 E E c O. >..C — Ai ^ - J LA Al P9 > C CID Cwo - 0 0 0 0 0 m cTO C ° N N = w• Cl) W0 o a) c E > C LL1 N1 LA LA LA UN an L!1 0 0 p O O - = w _ _ N Ip • a oo C2 7 LA LA LA an an LA LA - N H > 0 JD p rS W o c - o o E co a ¢ +❑+ p WJ Om 2 > 0 0 0 0 0 0 0 c .G v ° h h am U � x ca i. co LU c0 OD CO W O7 ° O ° o y E w C •� — < C 0 0 0 0 0 0 0 G N c c ce _ a m _ c o c d iz U Ii p W. 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I . § TABLE I SUMMARY OF LABORATORY TEST RESULTS Location Atterberg Limits % Passing _ Liquid Limit (%) / Plasticity Index (%) #200 Sieve July 1, 1980 - 1 North embankment near center NP 17 — 2 Center of pond 36 18 41 3 Southwest corner of pond 25 4 20 - 4 West embankment near center 22 3 42 5 Southeast corner on embankment NP 15 6 East embankment near center 27 5 69 August 13, 1980 1 Northwest corner of pond 58 42 50 2 Notheast corner of pond 32 14 51 — 3 200' S. , 150' W. of N.E. corner 27 12 47 4 50' E. of W. embankment 200' N. of S. embankment - NP 21 5 75' N. , 200' W. of S.E. corner - NP 15 - 6 Southwest corner of pond - NP 6 am 01L I\ /..a ✓ rmrr v ... . -H Coerultinp Engineers (T[ Soil and Foundation Engineering — wr s tl ANSLTlIS SIEVE •rSLYSII 4 &LIM mousse opis1I.M S s enema s P I • r .• �" r rr �� rI SRR •� I� •Im Ott Pa I + i S r t t I ' I W!! 3 I j j i v + I i 1 1 I y u 1 . I— I 1 'T I r 1 * I 1 l . + '° I t- tom.,.. . • d i z , r_.t . I ' s e . , ,.1, n i_ ud.s- /Y a a a on ON W Sr MO 1.s in .R •Y no 1.1 .•I •>'�[.. — of a. PIM I L III MILS? CLAY I.L.st SI TS SILT IR►h.sTIG GRADATION TEST RESULTS IIII SAND s� Is SILT AND CLAY 37 % % LIQUID LIMIT 26 Is ICITY INDEX 6 MOISTURE — PERCENT Or DRY WEIGHT b II 50 ZS 30 Le[ `] , i w II olsTu.[ -D.. o[ sIT. cu•.[s ,, emu. .,,........ .. 108.0 — I � i -- �.—.�`:...u,.'.� , 15.5 no {` a- _ r i t—L__,_____.1_ -I-__ — J T 7 . _ 2 IID I 1 •r I I la Q 1 --t,110 r4 } F I �w R i i is D 100 r I 1 a i G { $ 7 ,--- 50 l SO COMPACTION TEST RESULTS COMPACTION TEST PROCEDURE ASTM D 698-78 METHOD A SAMPLE or Bentonite Sand - Liner Material F19,477 FROM Weld County Disposal DEPTH Fic . 1 c. Pond .... - ro Cd _ 0 w Y o0 3 _ - - _ ^ LL 0 3 .- O O 3 o > E ro aD Z to J C 4) O y, c L 0i-' E E ti w 'C 0 m �^ r. - _ _ =C y rC C - w W E < w ' d 0 4J y .0 C L .a C O CO Z a >- H _a .0 T o > • n — - U) d . ti u c is > vi 0R .C to N > U a c V C Osv 01 0 01 0 en C II) C Co - .O Z O >. $ co in O O • 0... .$) 0 u a, co C O CC C 3 I C c N co N a yy 0 • 'T. O S w w r v C o w.i r- O Lr1 c0 N .. " u 4-00 J Q Z -0 C. u)i co 01 Ol 01 .O N 4) E 00 O 3 T 2U N w d 6 is N ^ N O .0 07 a Ps Lr1 UN M O ?` c c N p e n O 01 O O ^ �° C v a • 0' v W . , d C 6 w C C > — W .G .0 .0 .D '0 .0 c' L O. . c _ imi Z t; • • • • • • Et. h a' ti cc y U.) c3 C • Z O O c' C . � y vi U.) = 0 Cot < E E E .0 C w J m Z «',w 0 0 0 0 0 0 Q. o _• d m co Q J 2)Mt an 01 01 01 01 01 O O m ti E tL • 9.4 - U xOw- 0 O O O O O 5 C a C ' c a 4. _ O = ° C ' ii 0 0 IWPUO V at n n b fj w z CM CO cv ca c5 CI p ..e;' CC x ce cc a: ac yJ w0j- m CO CO CO CO CO u' fr1 N ir1 cV n 1 d r >.H Z C N In c O O R J m a cow co 07 co CO C E c- d C2 2 = Z Z = a: = c> o Z 1 L O d - CJ Cv O C. E0r u vRti = • L cc- = u s o_ 1 a� OR it al i � L O� m L s z d .. . `0 I • I oGra ^ C •Iyr = f0 ci I i ` tai �' 3 CO ''' i I eucc 'n L - R C � I L to o I I Cz Cd L L 4) la... L LIN d 4) C 0 4)C 01 I _ c c C '_ . C C 0 Z I- 0 i Ot � wC < 0 0 0 0 Z .� O LL Z O LU sr. I . y Y I r.±O P-:• V Z = w N to (� < L - r (1' a p G U C L r C a tV t� 0 • t'.. C C • _ O O 0 ^ .p C ' in ? v C Lu 3 3 3 # ZOI• o ! r° occi - -o i m , v. � v c.! - OR. C. G I 0i C - o o 3 0 3 0 - O O O < IV L E C _ O. ` G O ;n V U 4. N G - • 0 0 r a u .O E. e = N N N LL) Z LJ OU 4.1 I • O O ' E in O C ,., V - H O - - Z 0 I L D H C C O c �; Co 1.11 tors 0 LO r1 C N. g Cl - E E a b 4c. ; L 3 . < 'C I L C Ll A al c c I U ` z 0 ^ iNi^ f+1 tr1 Q L I 1 a G L r Hill • _ CHEN AND ASSOCIATES Consulting Engineers Soil and Foundation Engineering _ I ► wreopys ■ iN ll Milt( ar r T r Y f 7Tu,w�a atrl(Ss e Ella Mu.n OMNIS 'TA nos Oa ••• a •,o ti eu Pee P. • •♦ ►' ' If re I-- y t S- r t } j *4.11 } 1 1 • ' : 1 b5 ! I } T l wt ' ( s. • t } 1 , L f 5 . . 2 . ..1 r < 1 . An= t s d . r -itt. ,.. i SW I� M LW ale W SIl 4'110 !e N •R lff Ri WI Tat s's.. IN a PAN I LLII�I• •LLLFISETtS. N — CLAY I CI ES SILT ls.e•R•.TIGI } Pis[ %lus _Lange r -th_ut 1 GRADATION TEST RESULTS*RAVEL /. SAND % • Ti SILT AND CLAY 42 Iy Ti • -- /. LIQUID LIMIT 28 ICITY INDEX T MOISTURE — PERCENT OF DRY WEIGHT 9 eJ Is t0 t5 SD .40 F---1 S0I7Tu.[ -D.r 09 55,7? Gu.v[5 t 1 09.0 + .::w.:.. ...:m 15.6 - 1 - _ 1111_....-1111. ,... . , 430 4 I a — i b. • ISO `— u , • i r• 1 a a 1 ii0 J s N I Y is ioo 4 1 — • o I -- f0 - i , — eD COMPACTION TEST RESULTS COMPACTION TE•T PROCEDURE ASTM D 698 - 78 METHOD A — "20,674 SAMPLE or Bentonite Sand - Liner Material Fig. 2 PROM weld County Disposal Pone ca- U, s:, - h Chen and associates, inc. IX IS f CONSULTING ENGINEERS a.-- iENGIr, SOIL&FOUNDATION 96 S. ZUNI • DENVER, COLORADO 80223 vw • 303/2444105 ^: NEERING rfr,.- INVOICE FOR PROFESSIONAL SERVICES - , To: Weld County Disposal August 31. 1980 . ItIrr P.O. Box 304 P;` Ft. Lupton, Colorado 80621 I t — • ,.. Job No. 20,674 Invoice No. 7154 . Fill Control and Laboratory Testing, Pond Liner Construction, Weld County Disposal , _ West of Hudson, Weld County, Colorado. 7/1/80 Field Trip + 3 Hrs. Q 21.00/Hr, $ 121.00 7 Sieve Analysis (-200 Only) _ 56.00 7 Atterberg Limits _ 140.00":'': 1 Standard Proctor 45.00 Senior Project Engineer 2 Hrs. e 42.00/Hr. 84.00 8/13/80 Field Trip + 3 Hrs. 9 21.00/Hr, 121.00 7 Sieve Analysis (-200 Only) _ 56.00 7 Atterberg Limits _ 140.00 — 1 Standard Proctor 45.00 Mileage 152 miles 9 .30/M1. . 45.60 TOTAL S 853.60 — OFFICES:COLORADO SPRINGS • GLENWOOD SPRINGS, COLORADO • CASPER,WYOMING • SALT LAKE CITY, UTAH L. O L T s C co J C) co Y p co 4-, -J co N 0 • c ✓ N 1 1— co 0 J -0 3 -0 ._ -o (0 '_) V 0 G -- 0 '9 N C - L cc O V n X X ( no ro L X 0 r, — — t E Ln a) a N -- ✓ T — - 3 a) v L 0 7 .C r0 m ! F 3 m Y Y E m C O ✓ 0. — W CO - .- •- .— W — O W •a O 0 Y0 3 D a) O O N O L 4-1in c j., 9 Y L Z 2 O E CO - 7 J CO 0 .0 t O 0) • CO m i _. 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W W C O ._ d al O C C U) H ¢ W O C C 3 .0 L L G Z .15 Z ., o aa)i >. I)5. r E a 0 O > > m a a °— -- o f 1- 2- a p N VN on C t d p C — _ • N u. u m c a) G ¢ c0 u o u R N. • W 0 <2� co n C O 'p O m U • �� N W W W c c a) — Z O 3 ° m v) _° L N C: _, a)L. o c m m a• ❑ O c o C LL i 2 - O d . R v, O CC 0 J 0 in L w a= — Ln O E Iii O W -0 G O ow_ U d - Zm m Co y=I S S on p 'd E — g G N G G 0 i o n a C O d d w Y — �__ w 0 N. >.E E o R •- pi� O Ol co m ti ro m c L ow O 01 Cl C W t•J = G; Q) C V W N N N a L �O a) ° A C ya co a..7 O O — — C °O.- d 6 N W L L ❑ Zcie Lc-) '< E E a cc a+ �1 J 6 2 F S S S G y. _C y d O y a7 -, - �� U 15 w co J xoi — - - 5 c o c : ` E ¢ I- 2 Z 2 O - - - O m O m = Cp = O ea c y,,„• c _ LLL U LL w cc' w p> 8 co co a7 I* Cr O W tam w L L L 0 co (.7 d- R 0 I: d >H Z c O O R me Z Z Z _ &a u -- 0000 f O C E o t ....• V U W '- W °L d _ O 0 0 m 2 c Y cc) - E a E W W W G- a r. S t 1 5 - - - =- a = R �n 0 0 d w - = N- C 0 ° > u C U Y III O R'- a) _- G d L L L > E N C C C y o _ EE CD E ID E CD I c a 2 d o _ d c c FO-I C iI c h- w a Q+ o E,O El-to E I E. - E c N E O' E O E O y E m '' '.p < W L W) L W L = 0 in L' C.III 0 G W I Y R t ° y u ~ N U tr, .0 U t. L_ I� G O d -' 0 O - 0 - 10 - M I E 'c : o°'° ov C L tn. Ln LI' .a P 0 a T!) O N m .0 a) — a) — O — Z I c c Ea o u a o 0. 0 0 O > 0 o � ≥ Ou 0 — ._ — it I I 0 C I maw ._ c_ O co L N L N L I t E _ o c O " O- O 0 a) O G E C c C E c a ti C = E c , c c >. 0 C L C L T L 2 d U m G O - M c a) O d O a) O 0 I — a N O O = � L ° L u ) U I O o e c Y 5 X LO �+ .� i O a c y cc - O O .n in .n Z a a v - v `c Cr c 0 m O - 0- a 31 C- I Q d u i J Q N Q NIQ NI H E E q L R C 3 — G. C C _ - E d O 0• .).' O• a c d C E o LL C C G U L 3 d W Fo M S In U d d cc co L L e' C Cij O 2 NJ N N W I a a E ¢ d c O G > >' d _ r I u) ! H h Z 2 r o c O` _ CHEN AND ASSOCIATES Consulting Eneinws Soil and Foundation Enginwring _ 1 NYWVN 7[P AsnY1 $ h[v[ •NALYSII 1 TI� _ ♦a R•rrr T u [ /T•YMtt it•It•1p I ILL!MI •wat on*s jai rSS SCI 2i- Ia Mm •ll•.O•.P •. n •. IR ►' ,Y V If — r T T - ! 1 ,---�I �—I } y 7 1 4 3 * i - 4 _ 1 I — I Zt I JTH r _ - s •4 ; 1 ri — I f t , r � ' j Z If 1 ' + t ., 4 : _1 is f f • i i — r , 1 - I i H i f I • .44• f 1 I Y t- 4 -41- i i3 I t , I . r 1 r LL LL ;N IN sr a • ..0 9 m • l•I lal ill t•l 4311 . — RI M ru I Lt u rluN LAY I I TO WV IISrm-R.LlT101 i isaniimeri GRADATION TEST RESULTS — % SAND % % SILT AND CLAY 20 ¶ LIQUID LIMIT 23 PLASTICITY INDEX 4 /• — MOISTURE - PERCENT DY DRY WEIGHT • ID IS to is )0 HO 1 cols*ullt -olY o[flit. culr[s .........,,.,,..0......, 114. 4 _ } / -.....K.`... 14.2 — f-` ► I u 110 E 2 I 1 •Is t on • -, IID 1 _ M I . X Y • O 4et - 5- I I1 S 1 1 D I 1 r.._ • l0 -----4 - . —i — •O - COMPACTION TEST RESULTS COMPACTION TEST PROCEDURE ASTM D693-73 Method D — SAMPLE or Bentonite and Sand 20,674 PROM SW. DEPT.. in/R/R^. U-, 225it of Corner _ _ s_ o , • T Y N -O a s M C a_. Z p vC L u — WE o - v L L -co — ft cc N O _X =' a, O 3 3 — O u 0 .. LL u E O C N O — o a c m 1- >•, Y a m ,. p C . 3 ^ a m; O y — u N > m 0 o v. — 0 W L L V — w w - 3 n 0 y m m 0 C a a 0; < w ~ C C C 3 . • -a s m — 0. a yi L L O a > cu .p .- N > a.. L C - O i O I 0 U LD t m >. T O L 3 C as cc > > a a i m o 0 — a u I.- L w O to - U ID L it -, a < ,.. - w w a 12 C u a <[ n ¢ C O O O u Cm aa+ .C .C 1) Ill _ C 0 W <2- N - N N - M M c p O . F- ..... •- U O V) O • s O f o1 a1 a1 a1 a1 a1 a1 n c C C - 0 Z O O U '° ° C Vi L1/1 'tea c - Al I- L n m O - C _ O c O • -0 R' LL = e > C 2 Y a m FC. " Y VI 7 as O ¢ 0 J O u°Ji O Z CO - a1 I- N a1 CO t c_J < a O m •- _ Ow- u - 0 U w a� E L. Z > -, C Ln N 0 L.n '0 LA LA LA LA LA w u IV X m a V a) w E a a V 3 m I z- a - > O oo n COL L a • O CO d a i V n On . - a as V N a i y -a) : n p 3 In V L I > n LA O I+1 'O ^ LA E E < o in 7 m 7 LO L. O2� S LA LA m V w 0 0 0 0 0 0 0 w n C u a .= C mi U L.L.i ° w O N. m c u In O a F-'1 e W N N N N N N N a' 9 — a E C m -o — .' ' Z > ° - - n d .R c o S in V a a O i? S S S S 3 ? N > L p a� L .1) ID L. UP) Z o o - w - n w c a in Ln I< E .O ¢ a a+ .- m w `o s F .a a s •• C. -t n `-n. n _ v c ° cn E m — 3 U .i_ s •s s -T .7 -7 -T ° °c 0 C° d W E ¢ C 3 in L .II J J m Y Y a O p _ L = 0.0 ° c d c 2 LL U LL OE Min it C. a + F- 3 LaJ o a a a a co a a O 6 IS 6 ❑ G r 0 F¢¢ `v O wO j m m m m m m m � a ° m J V L9 f7 IJ LD 17 m a o C 0 ° Cl, T Z w n C > p C F - a J wt Z Z 2 2 Z Z 2 _ w_ rr C J w o Z 3c v V OV c Et w m 0 0 0 0 0 O O CO E C I u . . . . . . • c -▪ E W W W W W W W .O w ti O O O In LIl LA O wn cc al KZ: O O LA N n n O 32 WI Y N N N /^1 0 2 L C - I.: L L as L L L > E C~ C C C C C a•I I v u O c C E a a) a c) a a) a a) a E C ui ail L C F 4I OSOSSOS .Y E O >. d E • Co C F- CF- CF- 01- CF- C IIY a' • - a ccn ea o -0 E .0 E .n E .O E m E a 5 m in = ° E LT r . — ac E O E O E O E 0 E 0 20 .0 C C E a '-y O < W L W L W L W L L W Li E L J a ° C O n p CO a W La. LI. L. u. U-1W la- C L v. v, a• w. O C w w ' u in aN aLn C.in a N D • a L ¢ c O ,— 0 JI 0 J 0 2 Ln 3 u m V oL O � oLA oLn o � p oar so U ? t c > � - c IA m a ^ a — y ^ a — a — a ^ L. on O a a 0 0 G a a - Z a C O G u ° c. 0 0 O 0 0 0 0 a 0 'o .c !I 9 F 5 ` F — — — I^ — 0 r ! E 2 , e, c — Ln a N L in a N L L N L — L U L p d E in O U F a a al_ al a p) Ln a < m L E J C G E C E C c C E E C G T. ;no N _ u w >- 0 m s- m L co L m L m 1.. m Li E S 2 c l w u a C — a� M ci a 0 a 0 a 0 a O i a O OM O m 1 ,O O L' C= C O': L U L O L us- u L u L LJ a OA-, o o E ./' o _ T c c X L' L L L as IY Y I a in n — 0 0 p in Ln to N It • in VI Z WI- N w P C O r' V U 0 0 0 0. a3 a3 0. ia3 a a 0 C ! - a o c 3 t J . 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O C O C LA — - 3 0 o C E d v m 0 — t° 3 y C L > W W C - C to C) -J -• O C < w C C r C) W L L O W 'E ._ O m a a _ 0 U r - 0 0 C L E Cl) O > > .0 .0 r N E i EO _ r L S t y 0 CC Ln Q L .+ L a > V, w y u c C1 ''' 0 ¢ ti a u R -, 0 -' Q `p • w 0 CO c z_ rr = N %D L!1 1D c C 0 L N •0 0 m u s°{ tr m tT co m m co Z O )- 3 c°i o, m LA O L a, — N I- J v - C y t0 m a+ C C. J p O C O LL r0 •D m O L d C U Ill i- 0. o ¢ O J 0 i w c` CO it in 1D I-- LIL U u C) 0 Z 2 - z 0.1 J - C ain p •• mil` ti � n r\ CO - W *E) 'u X E C ' -,• O N y a° ° G. C d Can _ '_ L6 O7 N M N. N. -7 E E N 0 R a+ N 0 2� 0D — S LA co OJ tO R c 4 W i • cc c O co 0 tT co tJ1 c w 1D ~ d yt i W V W d ° eve-'Iy c E - J C > W N NI N N N N N 0' O • 6 Q 0 r Y +-' - d W • _ C in J - '_ o o s C •.T s s - c `c in m co9 > O 3 p C O V1 Z �< ° ° 1 G.E `c • ¢ N E to W O 7 > S S CC S ? • 'a r, 'a w L o ° 0 "0 L U 2 o i o s a s • ' a 0 °c .5 °c y m E CC v tip m - .� _ ° ° C O. _ a 0 = 0 = _ U LL O d = L - V/ U _ ty Q) Q) d se) 0 ❑ LL W .' 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W L I C —I d p d 3 3 3 3 C O = w o Li v= o.0 0 Q N N N N u 'E N' r. 0 C O d in !O - L L. L EC 0 r C). I fa I d T` O y 0 1..i 0 0 0 0 I- C' C L I —. E c a 0 OL > 0 •- i ka° cc 0 tm w uS w 3 r -1. c_o ti c j : ' d d - E o u _ _ _ _ U L t n C): d C Ctl — S I 0 0 U1 0 < ea _ E 1- ' o .- c C >. 0 - M Cl '.D — C —0, R O To. C - ` u d' 4.4 M C C' CJ U N I •O O C O C La w w w 7 0 X .1 O U ,�•,i - o o Cl E No . Tu 0 0 d z in •o m w a E m U O J i- - - Z O aw Co L C L C U 3 w ci 3 •D • j 0 0 L1 0 F- its - n m E. E N U Q — M '0 N < 01 C C O d C C) • c- -c C 0 O O C C E 0 O 3 L iLa L C C a C. u=s c r C < C `E 2 a o Ed_ c:do — w z Cl N M Ol W L. C) C. E - C d C oY N M Cr) M _ = '- - (n I- I•- Z 2 i- Ott 0 \ -- .- — C) ..a- Y L a a) C_' C) - ` O L 'f' t r0 'n \O ••• y d C ✓ mO1 .C CO v, •' LL C 0 W -C o , ro ._ C) C I F ,0, _ _ _ y 0 CO .C O Z• O C O V'•X C ) 0 ' W.co 5 COE 01 •E 0 t to m � ►— l- 0 a. d . L ' 0 ' L 41 tu .O ral o X Z 1 C .O C C d i ~ N, lo .D .c L L C) T H • - - d -O a C) C) C C) < O C .i., ',., L -. > N 'O 0 m C r0 - 'n ta- ¢ C r0 ti u W — 3 .N C) id- VD C1) 0 L a 0 f N L11 ? 01 01 C c C L C) O Z co L) O ��- 01 01 01 01 C% A v 0 C f0 C) N 1— — L O u c 0 . 0 ; �3 -- ilD O — Cu L1 O C > co L - LL c a O a L� C) z W I- 0 L '-, in O CC 0 J ' W c W O c) ? 0 F. C ea f0 Ln C .._ 2 J E-I' C m i — 01 01 Ol n c E C) C) •E •- 0• d j 0 0 o 0 — a n s .Y L > ° c0 C_ U 2 U w 33- r1' ++ — i d d a C rO 0- > OD tD1 m N— U Lf1 E E c ❑ Ln C) C _ • _ O +' O w �' c in u di OD N- N an N 0 L C R C) . +.' C) VJ O W .+ d a u H t - N C V O aci O .y C -p C) C) y W = W NI N N N N _O) V C. . O H Q L ` — Z L _ " `. ayima C7— 0 O — - c C a: > a`' c. C • G > C Z �� O O E G .0 WI O y 44 W •c t c 'M -, 0 2 NI N N N N Q ::. .� V 0 to '., C) V) x¢p2v ? r S O C O C y E W t r0 0 •r < W 6. — 0 O _ CL a' r0 Z z O f . O TA O w p t C� E +' d• '7--: V L p ti O " ._ Vj V 0 0 IS Q ta d O u rO al 0 4— t.7 G7 C7 t9 C. 12"W W >- V1 V1 V) N N IV (' O 1— v: W C), tL O C CD 1.Z >:. 0C"7- -.1 : L _d N LW. CJ L) U U C•) 011 C) L , O W 4- N V) V1 CO Cr) 4: O d O g= CO'1 0 0 r d 00.... V O I CEO' ili dRRc • C E Itil c._ O R al a 2 • 3 C a)' 4, I E I� C '°� yR s C O •fl u,-O .Y .x 0 ..- a r0 ro I I c u • C C Cl. C •.. C er a to co:ID > E c r I= 0 0 O L L L L I L L i i L 9 R d L gp -' •' C) C .1! -c -OD ' cLdE L I ` x L Q' L C) O •'/1; 0 O O 0 C ti N Z Cl) ••-= \D 0 I-.) L.. �O v u CI 1 — cE0- c 0 < J . t.-^1 O i = O `v10 CO O Lu < I ^^ y I to u H ;.. $ Vf C L: 0101 w t u L L N F 0I Yi C I r. C O v v d L c c � c0c — r, v 0 3 3 O 0 �' o ti inoa) RE C1 V Z N N. W U r0' L G 6' c z 5),- V') < -'G I - ^ 0 c _:-7- >3. O ` u.. w w a C: m o c - is O M 0l 0 0 r it u - _ co r. y� WI C) 3 v, 0 0 I E v c c >. O 0 W 3 - - , '.' Z ' Zr)a1 0' C' C1 y 51' r, y V m , - - U1 C O d•PI I A � h E v O— v._ J O L!1 I's C) Co 0 Ln' I E E a c d 3 " 3 3 - 111 1� — U N 4 crY C O. R 0. C o G O <. �;, I V o 3 •C_ L. L. i c C E V cu ro ,- O a 1° .O O a c c° o N M U I C.) O p e r Z C S rT r -.7 C. >. > V _ v .. O V) I I- r- Z M ,- C T A C H - CHEN AND ASSOCIATES Consulting Engineers Soil end Foundation Engineering i ST'.-:•W 4d aal= I • • • • I I ^' v I t AN• I S. Ca fWY NIMr0.0•10rI • OI •wc •so R •fc • IM \• ♦' r re eiMmaula .M. armseramm moms ormosIS mmoammreommommplmIIIIMIISIMIMIIMMIESIPMflINS 1•11•M•11 . 1 M 031 ON•a a a W sOI f o ,.R IM •l fQ A. NM ••t R•rfl Oo ►•f I LI Ir SILL? ; __ _____ _ __ __ _ I IM GRADATION TEST RESULTS -. % SAND T SILT AND CLAY 68 ~/• LIQUID LIMIT 33 % ICITY INDEX 17 % - MOISTURE - PERCENT OP DIRT WEIGHT • I0 N t0 ... h b I ♦ f . ....... . ro,flu•e -o•• MOW cu•.[s j rm. ... , .r.- 106. Lf{ 1 ......., .c . 17.0 so I • j ♦ u Ito 7 —_-i — N ♦ I II 0 —•-• . ,10 T 1 - 4 i_ ,1 la C D loo — i D I _ 00 t - 1 I — fo COMPACTION TEST RESULTS COMPACTION TEST PROCEDURE ASTM D698-78 Method A — 23.674 SAMPLE or Sandy Clay FROM DEPT.S. Side of Si to 1 n i-, 1 /On _- .. . I U-3 CHEN AND ASSOCIATES _ Consulting Engineers Soil and Foundation Engine/sing _ .1 Rr r[7(■ ANA YSIl !I VI •N•LYIIT I SIR Wait " C Stai O • a ts.. 1 can rums! OR■Iw O� ra S� •� 1� •.m •f0�IC •R A •• ►' ►' r re 1 1 1 1 t j i i 1 4 I r 1 4 f - - - , -t 1 I T• { f t . a 3 I ; = t 1 I S a — E ! } 1 i 4- tog L i Y 3 -1S 40•t j 4 i — r i + f :1 ,o► i a I y y 7 t - -7 44 r 1 1 a : .-t II 1 r I I ;tt J k SS ION •w Erin ON w f•+ MD' T 1.R el M •w •r No a� I nt RI'al Pill S •DI Of ► LI Ili — CL•T I CI TO SILT IRM-1R- II1CI } /In 'uiliclor , me i tt.r !:i'coact i GRADATION TEST RESULTS — J• SAND /f •ILT AND CLAY 33 % LIQUID LIMIT % PLASTICITY INDEX NP q• MOISTURE - PERCENT OP DRY WEIGHT _ • 0 is t0 tf 30 •0 I colt u + •t ..Den D[•sl+r oue r----t r[5 1 .-..'.4..-,. - _ ......._............ m, 1 14.9 - ......K- �....,... 14. 1 ISO 1__ -- 1 I. u I!O • L r— �i— _ Y M a I10 R T 1� 1 l • V I D 100 i 1 Y .� • t O •0 1 i i M• •0 COMPACTION TEST RESULTS COMPACTION TEST ►ROCE 0UR E ASTM D698-78 Method A — 20.674 SAMPLE Dr Silty Sand FROM S. Half of Pond DEATH 1 0/21 /80 Pie. j U- CO • C Y L V J C w - O r y ,- C 0 0 > v — o 0 o O - - > L� 'u 0 m ).- O 3 3 �- = 0 ... G 'pw H w C E Y O c - W co a03 C L C O C N d C N D. O W b y o - C .0 O 4 N Z 7 J D T a. 0 L = C ✓ d 9 N CO Q 4.C R d C N L' C Co O V u s u n W O <Z.. OO Ol r- c v al �O p ED r••I 3 O f C:nOl of r c c �' o Z O L 0•• n m o o - N I- J N _ C C F G CC C v O •-' C A C g d o 0. W J VI A CO 'p a .- W H O L 0 CZ S 0 c_ U 0 O G W C O EU Jw_ • U - d C Z J -3 O —• 0 CO z{ 'n In a .i E a) O a. 0 G 0 0 3 V — — a n - A O rA d r, m ' - d •' n W in L d UI T a) c 2_ S Lr\ M c c '^ a) A • c CO °p 0 0 0 m n r"• C = CC d o y c a) m C CU LL = W 0 0 0 a E. v y y Tv o ¢- O W C.0 LC O • at o -. c c d w a a°+ +W+ C W c c c _ E `° O C C w o > on c o\ 'n ^ n = d ° d Cs'a) C ▪ )--�' .o .n •.o ° O ° o m E w� - .= �? a°W_ 0 0 0 o c o c d — _ ¢a! 0 ° C CD C 0 W u W SY U - 0 0 GC la ❑ W `— € a d d et 00 L.ca$ v o v W p J- CS L y Y ICS 0 d co t, L7 C N C 0 _ R a C > °°a r•= /•��11 J wG. = a a L d= Y� a- ... ..•Y- d 5 d O C,) CID 0 3 17)„t • Z' 0 Y cE °_ Vu Ec a o c_ N d c U C — al i• sY a 0 E d - d li y R L C. v C ■ O C U d • r in I = c~. ad i i E C~ u I , d ° c a LL• ` d X i I ° d g a u m co N Z I Z ° Ec,-0 %D O CO < ,L^�1I y - o c C.-d. U LA C d LC u y d OJ LA C C v _ L c U LU U ~ - w U rtul G °tc''U r ry -3 2 L E E R C c ° p L L .a O 'li = D ['j..N O L _I u i Z u 5 a E c m c o a 0 0 0 o . C r ` ` d in O w a) P L E a o o, t E ... G 0 3 0 c) C.) 0- t d ° ca_c a —1. rt o To .C C O U d Y O C Si S s 2 - ' d u G O - _ O O U E O X Y � coI ro u t o o E _v. o c T) O 0 c m' col m Z CI m `o N Yodr �; _ 0 m J • O Y a a m a: 'u v_' 0 • J Z N W I— N E E G R E.E U u 3 G. I C C 0 co a o Ecc� o a)i : w a a E -.5, ==c ` 'E I- s s y - - Z I= Et r c F chen and associates CONSULTING GEOTECHNICAL ENGINEERS %SOUTH ZUNI STREET•DENVER,COLORADO!0223• 30377•14 7105 October 29, 1980 Subject: Pond Liner Construction, Weld County Disposal , West of Hudson, Weld County, Co. Job No. 20,674 Weld County Disposal P. 0. Box 304 Ft. Lupton, Colorado 80621 Gentlemen: As requested, we observed construction of the pond liner at the subject site between July 1 , 1980 and October 24, 1980. We previously reported _ on the construction of the north half of the pond in our letter dated August 28, 1980 and daily reports No. 1 and 2. Our observations on the construction of the south half of the pond are presented in subsequent reports. Based on our observations and the results of testing presented in our daily reports, we feel the pond has been constructed in reasonable compliance with the project plans and specifications. Sincerely, CHEN AND ASSOCIATES, INC. Al Romero AR/sr Reviewed by: COS OFFICES: CASPER • COLORADO SPRINGS • GLENWOOD SPRINGS • SALT LAKE CITY 1 ,,• - inc. and associates, _ S CONSULTING ENGINEERS SOIL&FOUNDATION 96 S. ZUNI • DENVER, COLORADO 80223 • 303/7447105 J, ENGINEERING __ S '1/4 `. INVOICE FOR PROFESSIONAL SERVICES _ ` '" ` October 31 , 1980 To: Veld County Disposal P.O. Box 304 Ft. Lupton, Colorado 80621 Job No. 20,674 • Invoice No. 7560 — Fill Control and Laboratory Testing, Pond Liner Construction, Weld County Disposal , West of Hudson, Weld County, Colorado. . , 10/8/80 Field Trip + 4 Hrs. @ 21.00/Hr. S 142.00. - 1 Sieve Analysts (-200 Only) 8.00 - 1 Atterberg Limits 20.00 _ 1 Standard Proctor 45.E — �. 10/13/30 Field Trip + 2 Hrs. @ 21 .00/Hr. 100.00 10/15/80 Field Trip + 3 Hrs. 9 21.00/Hr. 121.00 10/20/80 Field Trip + 3 Mn. @ 21 .00/Hr. 121.00 — i . 10/21/80 Field Engineer 10 Hrs. @ 21.00/Hr. 210.00 2 Sieve Analysis (-200 Only) 16.00 2 Atterberg Limits _ 40.00 2 Standard Proctors 90.00 10/24/80 Field Trip + 2 Hrs. @ 21.00/Hr. 100.00 Project Engineer 1 Hr. @ 35.00/Hr. 35.00 Mileage 456 miles @ .30/Hi. 136.80 _ t TOTAL $ 1184.80 _ i _ - OFFICES: COLORADO SPRINGS • GLENWOOD SPRINGS, COLORADO • CASPER,WYOMING • SALT LAKE CITY,UTAF C C. • .4-1r .: • C L O S 0 3 S u O 3 n cv ii- o 0 O C L. d >. m co 11 > Cfl O N F C •O+i o c E o > en o 0. to m d 0 co '_ I- � -A cn C1 E Ca Q W .- ? _ _ _ _ .c O C. •� _ _ .. _ O I Z 0 L r - = cC < 0 O 0 O •- L ^ r^ at) ID a Q 73 d S > U eca d CC C I v'I (') Z CO .-• w O-- 01 c CT 01 01 CT 01 A E o N O C gm. N _ J C T V C a W O J u O o d C. LL • - O CC V - O zz u O - Z } W 1 C W- S O N CT 0 0 a1 CO J C3 3 z in U1 • • O. U E O < O U Cu) - .-Q1 h IC 7.d O. .... > r••• N CO N 1D01 c0 E E o 0 CI) oz n O O 0 ret O CO CO .- m ccc _ • ax o c a1 ' _4_ it > Lu V LJJ �V O y C • C a • 4.1 M M f.1 M M .- CT 0 w dli ° CZ V IL C C V V C. CD V1 < ° ° E a ¢ E G�eimek --I `-W o CD 0 > 1D 1D %D •O 1D 1D ♦D C` 'Zia Si°i a°i dJ h - •� V J xCpW� ^ M M r1 M M S C _ C W 7 cr Zr - .- - .- r O h O m = C - U' D 1-_ E E .. LL U LL � - z 0 0 R �O }2 a h-- O_ - Cli C `a0 t C I C.7 C, e..1 C, C9 c.7 Cit W >= Cn co m CO Co CD co _ 0 _, = R O W .- •-• r •-• N r- 1D .� 4 T y • 2 tv O O ti ^ R C`L •� �C. Z Z Z Z Z 2 O C = I- 3 ' w� V U Q EP - E 1". .t) c a E = c V . r E a Z.II E r a, ,I I i 1 C ^ v = I ' j I 1 4 C y H W • e.' 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(7 C �'- > CO a > O O r w M Z C .� p C E p > y e)) d W W d O N - - a) ►- - ,- -J T _ _ - - a E n O W u i >, O I Z 0 L O .- .D > O O O ` a .o J: — N. d y Q an m a > ._ . cc QO kiN u a 6cc O N 41 Gf %.0 u1 •O VO %O •O CO C ,c, O CO ai 2 C11 Cr) C71 D1 0"S 01 01 . 0 CO Z 0C y m = ►• J N C le N C J O O C N 0 u N •m C a N .0 W F- ^ C C. O 0 } ' 3 N W f CO r"i VD N " n 40 a _E O N r•••• N, ►J1 01 ••:: E E on O — >ui., 0 1` O O1 CO CO O' a O CI, G I a O O O O O 6 C • a c in d C > L�J C 0 G C a = ....1 — r1 M M M M e+1 ::_z- = a s * n w TX '05k5 WI' col) Z C C E E m L s y� c C C O E 1 m 1O �D �p VG �D SO •O C - G - y u y W l- •r, "E 1 W _ ._ _ _ ..� ._ O N O N C 0 _ Vj w = o C:3 >0).PR a 2— O_ `S LW ICJ O y. m m a0 m on co co 12 f'D 0 W— — — R O ai N N %O ..O Z.0 411 — y c y >y C y till 0CCe• -.0 z z z z z z z tia` c -I- 0 d Ti CA.:r 6 rie N r r N L In C E Z O EO- - V U 0 v _r. - E C - G C c R is I L. = c v _ al 1 ; I I _ c O a Qi-0 ' s O O ; E z'- I N N L L L L L .c C G i - •- C C C C C i I , I L C E 0 O L L L L L I1 S O G C Z 01 (11 C U1 O v LQJ O L) c� I I I " p c _ E y O �- y p CO c . W LLJ LU W LLJ + ? Z Z V) in Z • • y I E u) i u 0 0 w i c a O -_ r ? 3 w ` ` W I r X tit_ v. - p ._ O O O O 0 2 ` E r . 0,c w C >.-O >.� - - y ._ O i U Y O Y O 3 3 3 3 3 `0 rn '• I E o y 0 0 1 L c _ Z c c0 I L c 0 d > - C U N O C '— L "- 0 0 u, o U1 i O I v, G> daE -- CD �n in r� E c . - u: u C)E O E O U i t a d c ct == — -7.- t0 oo L L i.7 W ...D .z W r O O C w u w u - - - - Z I d v c o v u1 o 0 O �., u ca .0 • w • LLJ o^ N m u1 O I E E c ti c'- " m 3 -O i.J C LLJ Z.w Z — N N < 7 C _c. c ?.Emu C L �! C) • O - U "o O O ec.� cO L la. G LL c c a C. U--cc r < G m < c ti y O E .O LIJ Z N M - LI1 r� w Cl n E t h- -- .c c N N M M in N M G ?' Z .� r C L 6 t � V) I- • - Chen and Associates, Inc. Job No. 22 .860 96 South Zuni Street Denver, Colorado 60223 Dote R/9n/R1 Project Weld County Disposal Pond D, To Weld County Disposal County Roads 12 & 35, Fort Lupton , P.O. Box 304 Colorado — Fort Lupton, Colorado 80621 Daily Report No. 4 4 of 4 Attn: Mr. Daryl McKnight _ o at a.m. Weather Temp. at p.m. General Fill Area App. Total Yardage this Shift — Contractor's Equipment Progress Report The drag line operation continued, we advised the contractor to — pump out any water and to place dry fill in lifts in order to obtain a firm base. We observed removal of saturated soils to a level which was firm. The area was also rolled before fill was placed. However, after the 1st lift the material became spongy. We advised the contractor of the soft areas and he was informed that bridging the material would be an acceptable procedure. We also informed them that if the bridg- ing did not work, then pits would have to be dug in an attempt to lower the water table. No water was observed coming up through the fill . The E. Embankment Core Trench dried enough during the day for contractors to achieve the required compaction. Field Engineer Tim McCann Approved oy Al Romero By: D.H.A. l 0 T _ a q l Ill .... C a0 ; Z - Z L E o co O O o U N 0 V a O fi dV m p Y. o C) _ OO L N. N C c ID f0 < CC N— O m 4; a La. o v V .r 4) O W O c 0- 111 OO P� C% �O �O �O E c0 3 CO Z O en oOf 01 01 cn 01 Cr) Cr) C1 m c O O 0) y N I' J C U c » 0 L.,N. Q LL V O G d r6 v is a 01 G O ¢ U -0 01 w cz - 0 0 cl L r0 Z > w — 10 4 C la^ M �D M r 01 ♦0 d m r0 CD -J cc C) •a9 H z iR . • G U E + r0 -) G 3 0 a V 0 0 r- w a T. 01 C) -) CC h L • d C. e0 w C M `G ,..C) M �D V N E E c O O ro O n v)n 0 — - 0 O O at c a: c 0 Lc c a C./) it,o r d .n 0 C. '+- C C V• L ° a> o u C +' O = W c = W M M M M M M M C lc G Ira .C L L) W Z a d ao c > +.0 0) u h ... ).c 2 r a — n ., ` 0 to C Z CD C7 0 0 c c "6 . a+ C. V L 1..... O ... 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R G `t L e _ O < : C C co • o y+ o c p oo0c o 3 G Ci < LL C C d V u r C > r C a> Q 7 c men 0 i sD N- CO 01 O — N w p G E E .N - 'C C 6 M M M M — U s- rT Z 2 r 0-c L C O - C . >. - x v r6 p T CO C L 70 0 d Ja •••• IN O 0 O V cJ co .0 pp d O o ~ -a o D O o C E O w co C Q y n) - p — cci rs'i im 0 N d X Z ra 4- -- a >>. 0 ..• 4 0 0 N w c G Q CL LL io d 9 • N U c ¢ O LJ1 Li I u to oV %o d [0 T M c 0 f Ln LJ'1 O LJ\ r\ .O C Z �, „� O 01 Q1 al C1 01 C. Cn co E 0 U h m 0 . _i C C CT0 N 0: ,,.] i . O C N b II L.) m C h NJ 1- iA 0 ui r V 0 y _ • • . • • • G 67 E -, 0 to • Q, d a .o r•-• .C .o CO N .o E E c D >in u r- r'- N r, O CO CO ? O V) 0 to 0 0 0 0 ^ 0 0 C to U C • V uJ CV 0 rn d C p C C �. fop LaJ r'i'll M r'•Y M M M M E. — L b r0 W y O C •rte is C-, 0 0 - c c a 0 O u 0 d ' d a fin Z r O O to ra . W LJJ tc O 2 > .o .O .O .O .O .G .o a ' a w o u m UU) .1.- .� U J xci M 5 c 3 c Ijj �`5. E c v.. ..... o c I c ri ow 0 0 C W et 0 -�"2_ C7 C7 cD t., co C7 G7 4.4..i 11.1 O>8 CO CO CO CO CO CO d 0 J - c - - - �! 4 O u+ N N N N.o Zo d >.y C ¢ OOrc R _ A ..,.J y 4 Z Z z z z Z Z d d d O CW> rr 3 y,-= y z ' O d C�.� O cE0- EC O ro . . r _a - E d I . G G R ar i 0> R rJ y n. II I C v L d ... .... I o R� y y i L0 I IF. N H r Cl 0 I I I C C C... C • H R d N N L L L L L I I I I D 61 E 0 C C C C C I _ C d O� O f . 0 O 0 O O O . I j . c —y ..... p .. ›. 3 a 3 3 ? = ! In I 4 D u ft III Z Z Z w ! I c Rc cow 4...- .- >.-0 >.-0 0 0 0 0 0 2 I I E E L I o.E'c c a rJ rp Y Ql C Cl C O 0I U Y 0 14 0 w w • w w Z i C C E G- C co y a .. ar I '> 0 o c ` y c CO V� L 11.1 N M �. M U I r G a' Q C Lir'll'L-^E _— as _ n �t L �C L < E • O 0I p M. = C W W W W W 2 1 I • d 0 C Q Z C C o = fi I 3. 7 x "I L c O c O N N N N N O s o o a E -_-'6 o F.? a LO CO J wuuJu - - - - - Z J I co D N c cocva LLJ • w Ll1 LJ1 LJ1 u O I E E cc V E U a -"O • y C LAJ Z W Z r� CO Q1 N. C - 0 C _a is G= C C L a 0 • 0 y 0 b C O O O C.t y — k c c - G U- 1 lL G G i rc c is O E a> > O W 2 M U1 .o N. U1 CO w I a a E v= ='C r � w c5 cai) I b- Z 2 r c�L C i. r Chen and Associates, Inc. Job No, 22 ,860 96 South Zuni Street 8/21/81 Denver, Colorado 80223 Date Project Weld -County Disposal Pond D, _ To Weld County Disposal County Roads 12 & 35_ Fort Lupton, P.O. Box 304 Colorado Fort Lupton, Colorado 80621 Daily Report No. 5 3 of 3 Attn: Mr. Daryl McKnight ° at a,m, Weather Temp. at p.m. General Fill Area App. Total Yardage this Shift Contractor' s Equipment Progress Report The drac line operation continued in areas 2_ & 3. No seeoane of ground water was noted during operation. The two areas were pumped out prior to dredging, also these areas contained no saturated soils stockpiled as area 1 did. The areas were excavated approx. 2"-3" below the standing water levels where a firm Sandy Clay was encountered. The fill material was bridged after approx. 18"-24" of fill was placed. The last 100' of Key Way was excavated and filled (1st Lift) from the NE Corner South 100' . Field Engineer Tim McCann Approved By Al Romero By: D.H.A. N - 5 O L O -- -.7 0 0 co 0 — Eu 0 .•. — u 1L O N 0 e7 i a m 00 O ic - ,0 > Z 0 O - w w c- ✓) 0 CC < W ~ >. .. - - - - - . 0.TC ill 145 2 Z vii 0QNO O N . .0; cc b J J Q V U c < it co 0M 01 N. C 13 CO z O W UC- CA .— Ql 01 01 Ol os R 4 C N CC J 7 N C m i N O JO I O O d O. LL "'CI IC 41 ti O M 0Lij -- m w c ILY- 0 0 ... Z CJ 0 64 a ...... . M N N n U eu -a m fY w z.. 0 V1 n U E CD • _ _ w _ 'O <O U) 2 V 01 CO 0 CO — O n w - m C. N. ^ M VD M N E E c D N O ` 9. q. 0 m 76 vi v C C • O c = r j C� W Wm W M M M M M M M Ca V a C U w M — 0 0 CD — • ▪ C.7 0 C t s 1 c . d d 0. o z - O O w m w E y w a C 'L E p •- o o > W W W •D VD .D w o i 'E -O U CO F- 4e 2>-- ° w V) MI U CM u t c t C E Z O .- O h o h p c, t/! U 0 0 i2 = W Z ll es p z c`a$ CI c a c.,, L7 c Ls c7 w W >_ CO no GO m m as CO 12c - - - - - - - w CO CO CO CO CO co CO I c eC O —, Z ;= a 71 p O r. J to A Z z z z z Z z r _ C? _ _ ,� air : = c, Cite � b w = o tni E o 2 V U +a'1 O Ec� o C c G. O� 0f R— E a)i 01 -c7l L O 4: C O cc cc al .1 tj m, aD > v — rq I _o ; .a u dMI I • c r ..i a+ I c t0.'. C L 3.. L L N L O ! Y.— le Ci o L L y O) C) G) C) 0 4 E E L C) C) C C C C d E I d �^ w G d N 0 L L L L L 0 M C O j L 0. o O i 0 co 0 O u 0 U - EE 03�c p .c--vi _. co o 0 u u N. c 3 i > v. _ 41 4J V) N V) V) - i N: N 0i L; ` 0)t u Q) 0 J W V') V) 0 • V) P— <10 C t— U a..�! Y - -1 U 17 (01 i4—7.i C 0 0 0 0 91 _ r pC pw r N L 0 O O 0 • • • • I I C C •7•.; .0- N ^ N OI O >r • w w >.0 w < 0) _ c 3..- o = G • I • L4 U) _ 2 1 � E C O' I E 0 d d w �I 0i - w - - - •. - O o L pry ` e u' A 0 LA 0 u I u: w ' E E Oi IL - oo Ln N. M f\ U E G �I =O c.0 - I .5 eL CO M x _ _ >: o C; CO w w w < I I L E CI � E = ory -J I M 0: 44 W w C. ni u 11, up-`-' CO -C O i Ox 7 Z z z z 2 Z Z Z 0 I p p i E Cec ,-.V — U I JI - L V1 2" Z I 1 .o .O a' v O w c' -0; • .`.,, C o 0 u, o CV r 0 E E ti ' cr.-1„ O Li .aJ Le1 *D N. - - < • C C 0. ca w : C 31 •G. 40 4-1. < ; _0 .0 a O o p p o - = cu -r -_ • z.- rr ry L 0 E W a1! O — u,z N M in V w w E L v - = 6-.` O Z 01 0 u1 u1 Ln LJ1 Ln a ? - • ^ C I.- U) { r r Z M r- c=y O I < rD 8 G O s d O O C•411 IL U r - > N Z C0 o C E mD 1O O. h m d 0p — W CO D_ D N d a) e I-• 1~ ).- J _ _ _ _ _ p EG O W 'C I p .-• v - - - - - - a < XZ N L = �. O p ►O N d .0 L"' N d < O cc O L N t: •- 6 R N > M 0.0# M N Li" O N C1 CO C O 0) •u W 7 - Cr C1O1 C1 O1 C1 014i) C ... N Z O C 0 O A V3 - N __I- .. 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H I yi Y is L u:.- 17• ^ 0 0 0 O O � ',,. o cx Ln o o Ln - - II O U I I v ' . R = L M N %D ) . O O (~J E n I C C•w t = O R `^• O, C O L.) w LJ) ‘z < •- E I E • ` t c G O I 7 SO 6, a 'O C u C.0_ - 5 x o. L- Z N cn v) v) O o o i E ^ c = ,,t O 0 3 = N I I in rn • d LA CO ` - - - - - Z t c c`� c c cc— vFi i 1 •.• O O Lf1 O O - - 0 .I .O .O y c a u 3 in-..7 C Ln a � u'. a Lo r1 - E E a GCNC3 c o O L N N < ; t c — a G: C 3� Q. L. o WZ �D f� CO O1 O (N W G E L - c- .- = O " Lf1 Lf1 I L1 LA 1.O .D -D a Z -C c --. ,I: C _ 0 t I 0 r • < T .0 r0 p 0 pp C L d \ 3 0 G LL O O > 4 CO N !..) W \ O u m } C la • N ID 0 H ID d 00 O C y N O C I- m O tu . a J � _ _ _ - _ � Q 2 Z — — >' 5 _ >0 0 0 UI L to d . c - .a > 0 m d v CC U., ci o c W 4Z_ L 9 O t/J G a o yt r- CO co a0 T.... L C O m 2-- 01 C1 C1 01 C1 on c n O � O o— J � W " in C a w N Q J C C C N a O N G n u eo L W 0 u ^cc 0 Ili o WH 0 0 Z } .liJ m. - %p CO r• N — nvi v E CD J m ^ rD 6 O.r ►r1 N M M M w Q ... O O O 3 0 30 CO ^ ^ d Ti a d c0 00 u1 M v1 E E c 0 0 Z a 0 0 r° c ea G/) 0 — ^ ^ d n C U., • W C, 0 ta c iv a LAJ _ Z ' C. M M M M M = = H o. H O is U in Ili > m 4. O ▪ Z i- < . O O 111 E R in Ill 1^ ¢ C C C p ' 'WI J m D .. • 10 1G �O •O o C d m H '_' U Xoz& en 0 a c E c a+ .. E a .... riok C-,GAi— s z D D �E7 i2 f2 a C 0.= LWW O>a CO CO CO CO CO m 0 W_ - - L W CO CD COC4 CO CO CO 4 R O m t y !C z > °°a r W L I`= m tfl 0.IL Z Z Z Z Z Z CD 7 41 O iNC O d E p V U E C C 0 u R ti c :s_.,7, ...i Y r - Em a c m ay r in t0 r O.? in L O c V � Y � s R E - I- •r I m C• C'. O ••••• 1 L L L L I L Ti d C)C C C C C C I G fd O 0 L. 0 0 CL. OJ 0 rL. -' I I I O E p,t t..) J O C 7 > •h C W W W W W w - C) - O — y UO W N V) Z Z Z �� > U L Z 4.. V- t.- 0 Win C d O V L O 0 0 0 10 E O G W - - - O •� p c Le c; d 0.. c > E In Q — - Cd1 IA LA 0 In 0 .0 rn g v �I u1 M r1 ^ t+ U E n o c v,r — a _ L — - - L — ,.0 w w w w ub < E i "E = ° C",. c >J o c a d o I p 'oE - c= `� z Z rn v) N O c c C p C`- L N U - O O " 3 d d d c — U CO J - O O O O O .0 .0 E � . a `c 3 '^` L C N N O H E 7 C. m 0. R in cou C — L y < C C _ O 0• D y _U L O O C C- ca C 0 rfr z M M Cl O W G a E t g C a' C O LA LA LA V1 'D - m u) I H Z r C L L C Caen and Associates, Inc. Job Yo, 22 ,860 96 South Zuni Street Denver, Colorado 80223 Date 8/24/81 Project Weld County Disposal Pond D; To Weld County Disposal County Roads 12 & 35, Fort Lupton , P. O. Box 304 Colorado Fort Lupton , Colorado 80621 Daily Report ilo, 6 4 of 4 Attn: Mr. Daryl McKnight at Weather [ Temp. at p.m. General Fill Area App. Total Yardage this Shift Contractor's Equipment Progress Report The contractors placed approx. 12"-18" of fill across the East Embankment today. We also observed soft areas from the rain which occured over the weekend. The top of the Southern end of the West Embankment has a considerable amount of deep ruts from the scrapers. We advised the contractor the area would have to be reworked. We also observed a soft area om the fill that was used in the wet area located in the NE Corner of the Pond. We advised the contractor to scarify and rework the area. The same condition existed in the wet area located approx. in the NW Corner of Pond. The — contractor choose to use drag line for excavation. During excavation, pieces of Chicken wire, PVC & steel pipe and cables were duo up along with a black, organic fill . We advised the contractor to remove all debris prior to fill placement. The excavated material is unsuitable for fill . Field Engineer Tim McCann Approved by Al Romero By: D.H.A. CHEN AND ASSOCIATES Consulting Engineers — Soil and Foundation Enginwwing I HYDRO r(tII •10,1,00i$ 41Evj £NALYf,} rL�i nut [ADINi! u $ fuPDSRD st•I IS Ago I CLEO* souNtf Onwiws iii •er rr Rr ,r ••00 •,OC •b••N s0 •r I•I I•' m`' '. E Er o I y { -, 1 .41 I 1 i so i.•P 1 r , >o /a r S i e .� s T• IIOZ �„ } t I �soY 1 ' i -r ' r Iwo Y I 1 .D. SO 1 I T .o i 7 1 1 . R, t . , rr n , • ,. t _ • lx'. ,,,0 ON IS OA ON On Du W tin fit 1W 'it 430 •R tR ,t' mu Tat RTN OO DIIINITER Of ►ART IL LE Q IY WLLIII I CLAY I IC) TO SILT IS ICI } VIII! "'NAME comfit rimy Gf4}' j-0Y /St I collLEs — GRADATION TEST J RESULTS GRAVEL /0 SAND pp// /t SILT AND CLAY 16 50 LIQUID LIMIT -/t PLASTICITY INDEX RIP °%0 MOISTURE - PERCENT OF DRY WEIGHT 5 10 15 20 — userI ; I soisTult -DRV DENS CrV CUIIVts I .... .......... b.a..., 1oJ. 8 1 ._--- , _- n:..... — ......Le,...^., 14. 2 i 1)0 1 - 2- ` — U• Ito z 4 I Y , M r , _ J 110 1 F Z r a 100 Y a O I I 1. 00 1 `-! -. f 1 + �{. -' •0 COMPACTION TEST RCRESULTS COMPACTION TEST PROCEDURE ASIM D698-78 Method A SAMPLE or Silty Sand ; lie C = co O cc Y - O o ,— O N C ^ 3 CU C O 4-0 > 7 0 O N (1) CO CO II LL I-30 W 10 O E C 4) t0 N O O C ` rD a) • t X ..C .b..• 0)l O Z d 0 in _ - - - - .. 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C • C, C tD N > -p (0 t D Z a £ J c s O W N l= -10 a ° >` a) 0 111 Li)r A` H O - - - d 'fl N > p m ro I- a C w 'e a +' an lc O L s >.Q cc) O ro O a > o c to ro ` i O w I W 9 N i• Q) n < O • O d •0 C ar L V_ C Q an 111 V . 9 R .Y in 7 w •- M a 2 c 'G r0 4) 0 0 cA a a-i •V C C y — N `O Z m o^ a Ln co u, o N Q O C ID U Q1 Q1 O� C1 C CO Z. L. L 0 N O J J N - C ow y y 0. •••• O .9 y 3 r0 34- w a•• u e o a t O Q0 inW ¢2 E v O` y iv Z >. w -0 - 4 J w f .- l!'1 r N V E ^ L 'D L • • 67 V CD < d O OV y in n - -� D c0 3 o d II u I- d N RI O Ol fa y L E E c D ��_ N t70 f� O1 >• C C L cow o c 10 h- O Cr) O u, O O O _O e`r V C U IV r„ r = W N N N N` 0 G G '- .C O • c W .A Ca p O - — — c C O ti m a •n CUM V O o. Z O O CO R w 0 > S 4) W a ' c 'c E `o p C ✓, i.+ m _ cc) ac ao oc o = o •• d o d U) •� L •— E 4 < 2gi¢(I)-U ON C •h O% O'1 . 0 c Y F2 E a .- d !- Z ° c ; c d LL 0 LL o d o 1- _ 1U Z O O D ❑ O a 3 3 a o c cs cp CD = c m CO ca: PC L 0 W N N N N d_ R O rr d 6 T.l `Y y > 2 °2 R J y w 'Vl rn . `1 E G) L~ r� Z Z Z Z C L 11;11. C1, 'V v_ a O C. O t = Z V O O E cb o i•, — La.Nam = R � E u ed a_ LO 7 __° aa a l 1RR - a ti �_ N C+Z ' L vl yl O R N -p Ni OI CO. r E r :1 C L 3_ E C _ ~ tO d I 1-. 1 V.L. L L '. 4) CO 0) y a' V1: - I C•••, •D`R w a) C C C N ro; a' c� d C E L L L L C I O; i .- C O L O O O i U. W o a c� Z O u u u U v1' -C = c o v ON I wI I o Ec•=h 3 3 3 —.; I o = c E .: c s y v Z Z Z Z ¢ � 14 VIC) C)ti O D u CD CC 01 O .C J u^ O O O Y 'S R L O v O V L y Q V O '_ cC '_ ecOCOG •� . w Li) LU c 'C �+ I y v) w - - - c c z I E. c 7 C O O I % O Z ( > C _o , > a a _ O _O i vat O >- c00 o N I E Q 4 N L c n u too w w w w < j r E LI d o - .- c 'a C C Z ` u= 4661 M O • v) v, N N 0 o o y; E v, 00 CV .. c - - - Ol a R O O 7 �t1 O 0 O Z .0 L aIII c E 'C '_' u co -.3 t� M O 01 0 E E 10 .0 a V C/ cv N 1- a 4 c� ++ C < • c c o - c C c c p L u U • V V o O C - J,,,, L C C Z. Cl V-L 3 • ti < R R 0 v a, o — NO N M V aca. O •_ •L v,_ = .t.;' O co 1- 1- Z M )- C L C H • chen and associates, inc. CONSULTING ENGINEERS SOIL t FOUNDATION ENGINEERING 96 SOUTH ZUNI STREET • DENVER, COLORADO 80223 • 303/7447105 October 27, 1981 Subject: Permeability Test, Pond Liner, Pond D, Weld County Disposal, County Roads 12 and 35, Weld County, Colorado Job No. 22,860 Weld County Disposal P.O. Box 304 Ft. Lupton, Colorado 80621 Gentlemen: Upon completion of Pond D, a representative saztple of the bentonite-sand liner was obtained and returned to our laboratory for determination of permeability. The sanple of the liner material was remolded to 95% standard Proctor density, near optimum moisture content. A falling head permeability test was conducted using a _ surcharge of 1 psi. Test results indicate a permeability rate of 4.2 X 10-7 cm./sec. In our opinion, based on this permeability test, the bentonite- sand liner is practically impervious and should perform effectively. As indicated in air letter of September 21, 1981, a total of 1,110.6 tons of bentonite were delievered to the job site and disked into the upper soils to provide a ccapacted liner which ranged from 7.75 to 8.25 inches in thickness. If we can priovide additional information, please call. Sincerely, CHEN AND ASSOCIATES, INC. By David H. Adams, II, P.E. DHA/ram cc: Colorado Department of Health Water Pollution Control Division ATPN: Mr. Scott Winters OFFICES: COLORADO SPRINGS, COLORADO / GLENWOOD SPRINGS, COLORADO / CASPER, WYOMING chen and associates, inc. = E CONSULTING ENGINEERS '%4‘ ' SOIL t FOUNDATION ENGINEERING 96 SOUTH ZUNI STREET • DENVER, COLORADO 80223 • 303/744-7105 December 2, 1981 Subject: Additional Permeability Tests, Pond Liner, Pond D, Weld County Disposal, County Roads 12 and 35, Weld County, Colorado Job No. 22,860 Weld County Disposal P.O. Box 304 Ft. Lupton, Colorado 80621 Gentlemen: As requested, additional sairples representative of the bentonite sand liner were obtained and returned to our laboratory for determination of permeability. Sauples were obtained from the pond bottom in the northeast and southwest corners. The in-place moisture _ density was determined in the field and we attempted to remold the sanples in the laboratory to the in-place moisture density; however, the samples could be remolded to only approximately 95% of the in-place density. Falling-head permeability tests were conducted on both samples. Test results indicate permeabilities ranging from 4.8 X 10-8 to 6.9 X 10-8 cm/sec. Results of laboratory testing are tabulated on the attached table. It is our opinion that the bentonite sand liner has been properly constructed and should perform effectively. The permeability rates obtained will be somwhat conservative in view of the higher in-place density of the liner material. If we can provide additional information, please call. Sincerely, CHEN AND ASSOCIATES, INC. By David H. Aden, II, P.E. EHA/ram cc: Colorado Department of Health veter Pollution Control Division ATTN: Mr. Scott Winters OFFICES: COLORADO SPRINGS, COLORADO / GLENWOOD SPRINGS, COLORADO / CASPER, WYOMING 0.1 6 a c s -c co I- !d R LI J Y E,8 a) 0, r'g ..1 M W c C C O C 4-1 +- - C C Or a CCI CC •O I I — .o I) a C a) >- CV > Imo' i •_ cC a •— u `)1 -.1 _ = W W>z CO zNu N , Z W M W W oaa9 iz„ u Y Cr) U V W CO 0 Is t - Z' .o. cC a -— IN, W J J H d _ I a I. < O R 0'- — W O - Cr r'1 - CI) O w i I . Cn =zgem < < V N~W _ Q 6 QQ N CO C d t CI a CC Z O 4 CI, Zte 4 i� = n z _ w 4 . 0 K I U.. d ..._ O > . — U .e n )- � i — CC ., s>N ca aCS Q 7 Q v M CO O 0 N G Z 0 1 — 4 Z ��//�� ¢,W r,° ',SD',SDO 0 m~~\ r N Z V w 0 O -- Z i v _ • Imo. r I r I = w C O O O= c c Q a Lnl • n • C C v L O O N O = D ,I J -4 I 4 , I. W - o c - w E 0 3 0 - 7 O Z ♦..' Ln N L N . .~ u — u cV N O _D O •.0 r‘t a .a., chen and associates, inc. CONSULTING ENGINEERS ' SOILS.FOUNDATION 96 S. ZUNI • DENVER, COLORADO 80223 • 303/744-7105 ENGINEERING .k INVOICE FOR PROFESSIONAL SERVICES _ To: Weld County Disposal December 22, 1981 PO Box 304 Ft. Lupton OD 80621 Job No. 22,860 Invoice No. 10288 Additional Permeability Tests, Pond liner, Pond D, Weld County Disposal, County Poads 12 and 35, Weld County, Colorado • LABDRATDRY TFSrrc Sieve Analysis (-200 only) 2 Tests @ 9.00 ea. $ 18.00 Atterberg Limits 2 Tests @ 22.00 ea. 44.00 Natural Mositure and Density 2 Tests @ 3.50 ea. 7.00 Permeability Tests 3 Tests @ 175.00 ea. 525.00 E.IN=I C, Sr. Project Engineer 2 Hours @ 50.00/hr. 100.00 TOTAL DUE 5 694.00 • _ OFFICES: COLORADO SPRINGS • GLENWOOD SPRINGS, COLORADO • CASPER,WYOMING • SALT LAKE CITY,UTAH chen and associates CONSULTING GEOTECHNICAL ENGINEERS 3/6 SOUTH ZUNI STREET•DENVER.COLORADO 00221•903/74.1105 August 20, 1981 Subject: Observation and Testing of Fill Placement, Weld County Disposal Pond D, County Roads 12 and 35, Fort Lupton, Colorado. Job No. 22,860 Weld County Disposal Box 304 Fort Lupton, Colorado 80621 Attention: Mr. Daryl McKnight Gentlemen: As requested, we visited the subject site on August 12, 1981 . We previously conducted a soil and foundation investigation for an adjacent pond reported under our Job No. 19,030. At the time of our visit, the west embankment was nearly complete and approximately 3 to 4 feet of fill had been placed over the majority of the bottom of the pond. We observed vegetation and topsoil mixed into the embankment fill . We also observed standing water in the northeast corner of the pond bottom. A total of four in-place density tests were taken in the embankment fill . The results of these tests are presented in the attached daily report. Fill encountered during testing was sampled and tested for determination of moisture-density relationships in accordance with ASTM procedures. The results of this testing are presented in the attached figures. Based on these results and our observations, we recommend the following: (1 ) Excavate test pits in the existing embankment fill to determine the condition of the fill . If compaction is low, the embankment fill should be reworked. • OFFICES: CASPER • COLORADO SPRINGS • GLENWOOD SPRINGS • SALT LAKE CITY Weld County Disposal August 20, 1981 Page 2 (2) Remove and recompact the existing fill in the pond bottom. _ (3) Provide a firm base for fill placement in the pond bottom and embankment fills. This may require some dewatering and stabilization. (4) A key trench should be constructed as recommended in our Job No. 19,030 beneath the embankments. (5) A pond liner having a permeability rate slower than 1 x 10-8 cm./sec. is required by the Health Department. We will continue with observation and testing of the fill placement until otherwise notified. Sincerely, CHEN AND ASSOCIATES, INC. By Al Romero AR/jah Rev. By: D.H.A. 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Z d a c o 3 c — I = O or iv 11n w U% a)� o N Cs - _ 1nr� Wr3 en 3 r_ E > > n c= Nu3 ty C < : I c c _ G C C )C§ CL u U I c C p ° Gu^� o m k ¢ NC " W fC d o E ,, Q> O �z N ., Ill a n E v_:=c ..= O G >. >. 7 d - - ti 4 u) I- 1- Z 2 a- O L L o 1; — CHIN AND ASSOCIATES Consulting Eng inners Soil and Foundation Engineering _ I wr0M0 [r�R w. rt It SA r[ ANALYSIS •I� r� i[aa�y`1 u S STerb•RD DuIEs. I Lulu *Dual OPERIIM •Y r•rl Sea •er IRR •.r •M••e•10 4 Rs 4 �' \' .�- • per } i i Ti T , ! �` I — f I : , 1 I 1 I fat — • if Ti z 4 rY f 1 , ± + I . t F ' i [ I 14 I I I1 I v 1-- 1 1 i - i i I . r 1 1 ii f r Y I f 1 i r r 1 Y . . t_ e . t . T: . 41 .l , - . -ci, . E it • s = ell= ti MR on a so yll al• we an al.MD I.le >• MO St 44 IS let ',sea — DI DI •AIIDkLI IN rql? ETERS I SLAT 1 I 'le MU Ie ... ltlOl---nw----rwiFirtrr llnirl CODDLES GRADATION TEST RESULTS % SAND a % SILT AND CLAY 13 ~ LIOYID LIMIT 7e ICITY INDEX NP ¶e — MOISTURE — PERCENT OP DRY WEIGHT .0• 5-- 10 15 ro s.u.t -DR. DENSITY cw•cs ... ...,.,.,, ....,. 1 12. 1 ` 1 _ i :,..�. 12.0 . 1_,.. 130 — PI. I -4 U IEo 1 — S .. —"---"T SI a. t -. to '. 110 — F . a l a Y . O 100 1 - N 1 - -- lir O $ 1 ± . I i - SO I_ _ - SO COMPACTION TEST RESULTS COMPACTION TEST PROCEDURE ASTM 0698-78 Method A — Siltyd rr i SAMPLE °'To of West r. 1 :'_ . 860 FIR OM Embankment DEPTH E/1 -) - CHEN AND ASSOCIATES Consulting Engineers Soil and Found nee ation Engineering wL� 11�, u* 4aNYr u t RAOar NNtwmw I ce NYY• (PEWS ••• am ••• •wr Ilia R,m Tit RIORi S. ^ ti \' �' .�• I fI ` — } 1_ ifI . i A i , 11 i > I T r I Y 1 a1 . t i l s »i I w. — r S t 11 . x _ i . 4 r 1 +�` , f 1 1 I 1I .1-- r r I a a at m, r.• HI( s+.�.jy.,SF ,.n • � w, n� NIt — ma nn or ►�sTID.1 IIINILLOJ sH \ .Y n IM FLAT I I R SILT••w-hunCl [nxic. coa.IL., Tlf["' ri WOOL is rGRADATION TEST RESULTS % SAND % % SILT AND CLAY 42 i LIQUID LIMIT 26 'CITY INDEX 12 % - MOISTURE - PERCENT Or DRY WEIGHT 10- lc 70 1 SOISYUMt -OII• otwsiTY cu*.tt 113.6 I ...▪. ▪ <1..in.- 14.3 14 01 . h -' - 9.1 130, 1 - a i esJ I • 71 120 - G 1 1 . E --in-' ; Hc i---- - I0q- i _ . I I _ — DLP— j COMPACTION TEST RESULTS COMPACTION TEST PROCEDURE •AMPL OF Silty Sand Fiq.2 West side of 22,860 FROM south Borrow DEPTH E/1 E ' 3/_ c.-_ CHEN AND ASSOCIATES Consulting Engineers Soil and Foundation Engin•.rinp 61 wyn l £w•lrall ti(vl •w•Lrfls I• 1Jt luaMr 0 S ►TSli &St Kbp.p I Oa.IS• Swami pI(YIRw, ••l �•{•R ••R •� IRa p 'MG 6°06°06°0 6• rill N \' \' .�• r fI 4 r 1 r _ j z 1 1 = + t t _ I 4_ r4 4 _. i ,_ '- ? .1 • { { j i ? •• {} 1 TI. "; s 4.- . - .r IleT r _i " r r 1 "` ♦ y • 1 7 - r , 1. - t •• S OS 011 01* NS ST MD IN N •S • ••AI ' S. I •7' (�D DI OT PAN I LI IN •ILLr IY I il•M InutCl ►D Sao Ir-PLN1)IDI _ testis tari GRADATION TEST RESULTS — SAND % •ILT AND CLAY 22- ~h LIQUID LIMIT 7► ICITY INDEX NP % — MOISTURE - PERCENT OR ORV WEIGHT in• - 10 15 20- 1 ' YDHn Y R( - DO. Deer. Lawn ... ............. . 114.6 7 i 13. 1 1fO 1 u { • w • J IID 1 C ,- , Y Q 100 — > , o i 1 Y _ so 24 1 COMPACTION TEST RESULTS COMPACTION TEST PROCEDURE ASTM 0698-78 Method A — SAMPLE or Silty Sand Fic.3 22,860 IRO,,,, S. Keyway DE►TH 8/13/81 0 .- 'OC) CO M C i?• J 0 ; C co c ^ d — — O x co 0 u E O '- co r w c p c o m 0 > Vj C ., n 10 — w W 0 t u I- F H A. 7 p 1- C O w •0 — J L JO •C) E a S 2 )p .+ (0 0 'n L. .- .c >, 5 >0 cc O < 0 0 m o 0 3 N >, c11 TO W Q U c Q - ti n 5 u n L L '0 ) 4 ZO R Lf, 01 CO 10 0 CO S 9 L CO z C T La p:— in 01 01 01 as — 01 n C O C C N 1— O C U a c C 0 04 C C N C n N A LL O O C m > a p o d W I-- N O wrr C Y D 10 U 0. O a CW U O Z Y C — CD !?z N CO .5 — 01 E CD -1 m C) O n 2— 01 Lf1 1.n 0 0 • • ' .d U E 0 0 3 0C E 0 — MN n X = -o 0 CO 2 a M .2 N n ^ ^ in n W 11 IL al > CM W 10 S CO01 in E E n G in _ E c C in c Lf1 ^ 0 01 N- M 0 J. o0 .. 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E LIJ °' o C •C Z M M Oc L n o- > U 2 7 _ d .i6 O — — d O jm En Z t O O O w m H W 11J ¢ C .C E r G _C �� J m a r_ S.D \D _n Z n 0 V 0 0 Cl) - .� U J x¢px& M M c• c a R E w (id Z 2 a .- o O °i c _ ¢ 2 c d o no o C7 U ii c„, w V12 0 0 6t IR RR al O c¢<g t7 t.7 LiJ w0>_ m m "Cl C. O iv d= c•c 0 c Z a, C ? a - R I ocoC J I.. R --. r w> Z rE'ad . Cie c./) ~� 3=" in N al= p od Coe U "E c) E c L c • u R R C • Z. E d al C d R as • _ � R , a, , r. i . m r t• 4- C e;r h _ W p I - L 6.,.. ,„.6 W p I I I ; E c ~ Z• Z I I , j cddE iN - u� I _ = 001 `aE z L>1 N I - 0 C I t o r. CV I i i I - p E c-•i Q1 0 fp C • I I II y ` d H ` R — 0 -c 3 3 ►.Lull !q s Ro:p �v C = u v - -r u y i u >.-0 >-72 2 1 I E r � o � Q E. a) a) C _ c ! z.E t nO Y Yip °a I o c I E a' . c : �i v >- CW t ` p I .; o t I 66R > c0 c• _ I ►- 0 0 to O �- I C u I ••• to c ,. d R E I O G C E E U i a E c r in t_ .Y L .Y L Q ! E p C C F ,.c.1 C O C a) a ! R 0 - .L c _ U M C .rte. C M aJ U H L c JI X d L- Q 0 Q " p. p! Z p c p I 0 `o i E v u c ,,E C.JI m II •, w U WE.) Z 'Cr) D H C V O a; —; 0 c y •wN •wvwi 0 E E ti a ER3w3 O C w+ < ; i c c a R G_ 00 - 3 G_ Li < I U 0 - cc _ o o Q c o o LL L C 3. G U_ C in y O R R O E E j O et u O Ile a a a E L -In- F • rn t` I- Z 2 - o'5. 6 L Chen and Associates, Inc, Job No. 22 ,860 96 South Zuni Street Denver, Colorado 80223 Date 8/18/81 Project Weld County Disposal Pond D. To Weld County Disposal County Roads 12 & 35, Fort Lupton, P.O. Box 304 Colorado Fort Lupton, Colorado 80621 Daily Report No, 2 3 of 3 Attn: Mr. Daryl McKnight ° at 8,M, Weather Temp, o at p.m. General Fill Area App. Total Yardage this Shift Contractor' s Equipment Progress Report The contractor began and rmmnleted cutting the E. embankment Key Way, Approx. 100' N. of SE Corner, they encountered a soft area. We advised the contractor to be careful as to not hit the water table. The W. embankment was completed and N. Embankment completed at time of arriving on site. We noted a considerable amount of vegetation contained in W. embankment fill . Standing water was also noted (water table) near the NW Corner of the pond and also at the NE Corner. Fill is being placed on the S. Embankment , and was half way completed at the time of our arrival on site. Field Engineer Tim McCann Approved Sy Al Romero By: D.H.A. �, cc Y C L O ro q m O 3 3 . al c� O-01 G 1 2a .. a' CO Ca •-{ p. •0 O p C o c O w cu I w o a H In _ _ _ _ _ _ d a) d > O O W •0 .- >.�O C O CL o -0 a Cu, 0 v) .O a .c m E Q a L- > 0 ' d v O d w = W 0 U1 <2 '5O U ti w fb fn M L°f U1 S - LI\ Q1 CO O1 c C O C N J Z O W 0'- CM Cl 01 Ol 01 01 01 C C la N I— C U h as 0 Zi C cr _j eN O - O .— - - - 0 (0CL LL I..) ' 117, 0 ++ °N' f0 of 0 w._ u io O. .0 O CC U -0 '0 W a:2 -- c) d 0 Z Y — ro C - r-- 0 r-. N 0 u1 0 s U W O -- m -1 m a) 0 0 2_ • r-- a o x _E N o Q a3 5 O 0 0 — - h . n N w O co U 01 •' In N R in a' a, at d bd 3... 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Ln - C p C' N 2 L� tr tr t^. 01 L' a — .�; O 'C .o 0 t- 0 0 "- 0 0 l U I IN - MI c c•- — 000 < 0 0 0 `r)I v' o LI = o y c +, 0 • • z Z — V) - Al' V) h +�I in a' �, > . -C 2 Z 2 C ! C' ro a' L , LW c ZI n' oa' - Y R 0 (ti o lJ•- - N o LO N E f' .E evs o =.0 G v'J fp Y u� t� O N N C Z� 'C- .. t� O, l_ U N .6 7 a1, i C > !0 O: 0 Z - - - - ^ c c Lj I E c- c h b -- c C C c c o O• j N 41.2 v E a U a) a) C) a) C) a) a) _ L c3 0 ; E C 41' a: c „ r= T - f0 - E E 3 3 3 - < r E C' C C F" 0 C O C C c C C c �- re o in = '� c u M 0 ea to ro et: r co ro ¢ o N; p co - c .� • - .0 .0 - .C - .0 0 1 c o C' E C L.) C _ c`' 0 x 0. L C.I co J S LtC) 3 Laa) LiJ L+C.f Laa) LiJ 0 I D`4• IA C Z `- C) y G: .- • +.+ C La) w LUJ w w w LW I- I E E 0. ' C R N 0; CI O L ++ E o 4 O N v I- coI H t-• Z Z '- 0 t L a L • 7:,I , - . G Co d aa fa a O 3 O d n • 01 t. 0 LL L. w 0 ago O > p O 1 4- d co m 0— v.,— ZS Os C O O c wI n ro E LL > -- ui w O en C < 411 •e a —e ,,T D v O n > CC I Z ro u — r c 0 < Cr, O in L •- .0 >. O .c) a p p em d '0 N ro C ` >.0 tron C41) U U A y Co W O <z a0 f_ • an c n C o N m _2- 01 01 C C N Z O +r W O R n o e- C U n ea N - CC J 3 N C C ro i b u U a 0 aI �' W in 0 w� 0 i 0. .) O CC O -0 v W cc ii c u a) 0 Z > ' — RI C ,�- a1 .o d ' 0X E O < j 3 0 O0' • n 0.N W 0 Cl) in in N T) I toa) a) — n C. >_ • C71 E EN G ❑ — aNu • � T O w R N a�S O d C 0 c • cc O C y u W > V w Cu o f y c c IC i/) Z . c - 0 0 °' ..> °n' w • a ,� J 00 2 > .O .D 4 Giii ° •Mil ill C- J xOZ o 7 C J C d ` £ C Z 2 a O n ° n r. ° O 0 _, V o O is cc 32 6C GF VJ w a i- (a acs •• •C)_ n IV w N N y= a o C7 - a > Z dtcm deo � ��yy J .w a � in 10 O. H L Ea. O 'C� Z hr n V O cFom END o o a a c 1 r Rc E = Z2 a: !p aii. =m a r - O n r a n ....• all r s C r; o at r I.. W i O C n - gse O O i is E �� .. Z. o c c c � _ I I v) cn i-0 ai m ' - _ i I I C a' ai C 1 1 .-- 0.v .-- o 0 . J 00, z u1 Q = 10 N o _ 6 E c c . — O a —w J ' 0 = 0 E n O CO 00 0 (V ›.• d mt ' o t 3 3 w ;i c a' c �` 01 < - Y U v,= o.Ycu _ 0 •— >•-0! >• ° 2 c a: o'c o c co rJ C Y 0 Y 0 •0 0) O 5.H n 0 0 f � c._! y a_ z c I E Z.C 111 E It G? L ,C � L < o L E 2 2 O r, F >} O C 0 CD CI ro C Z I 4' c°) 5 c O O v r M O I LJ -.0 L _ _ O C U O_ O O E O U 7 X 0. L W U W U U C) 01 C C r. L L O O J Z = .0 y c °; v 6.1 m J • uJ • W 'O o U W Z', W Z r E E C. A E.E (I)Cll U • Ld C i < ; C c - C C O 0 L i U o 0 0 E_ C) • 0 +•1 LL C C . oo—mc, cu' `2 N4.0 . p E r v -`1) E O N1 N U) r (-- Z 2 )- c-5.aC 0 Chen and Associates, Inc. Job Mo. 22 .860 96 South Zuni Street Denver, Colorado 80223 Date 8/19/81 Project Weld- County Disposal Pond D, To Weld County Disposal County Roads 12 E 35, Fort Lupton. P.O. Box 304 Colorado Fort Lupton, Colorado 80621 Daily Report No, 3 3 of 3 Attn: Mr. Daryl McKnight ° at a.m, Weather Temp. ° St P.m. • General Fill Area App. Total Yardage this Shift Contractor' s Equipment Progress Report The drag line operation was set up prior to our arrival on site. We advised the contractor that establishing a firm base in the marshy area was very important and also that the drag line could possibily make the area worse due to high ground water levels. They started the operation at 4:30 P.M. on the South end. We observed no ground water seepage during the operation. Fairly firm sandy clay was exposed under the saturated upper soils. We advised the contractor to mix in some dry material and compact in order to establish a firm base. E. Embankment core Trench; the contractors 1st lift with material that was too moist, densities were low. We advised the contractor to scarify and air dry. They moved South of Trench and placed a small amount of fill on the Embankment . field Engineer Tim McCann Approved by Al Romero By: D.H.A. r-. L- ...... o : 3 — O O C t!1 0 CO C..) 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LL. d V L O O C5 G G t O O LA Lin LA Lt‘ W y y t 67 Er> p O N N N N N W L. G E ✓ =.` .� O ~ J co M 1- Z a ,- C=L C L Jot No. 22,860 Structure Weld lounty Disposal Date Inspected 9/10/81 Daily Report No. 19 4 of 4 Foe: inc Location, Death of Excavatie^ • Soil Type Water 'Conditior.s Recon-ler;atiorc Upon Arrivino on the site, the contractor was spreading Bentonite then ripping the material with a bull dozer and then spreading fill on top of the uncompacted material underneath. We dug several small pits and found dry unmixed Bentonite. I then told the contractor that the area was not suitable. He was advised to completely rework the area, which is located 160' S. L 175' W. of the NE corner of the pond and is approx. a strip 120' wide and 300' long, with a plow or by ripping the material and then discing the area in order to get a proper mixture with the upper 8" of soil . By the end of the day, the area had been ripped to 8" and was being disced. By Tim McCann Field Encineer Cher. and Associates , Inc. Jeffrey T. Johnson By: D.H .A. 0 o G > L 0 ..... .p C 1- .•1 = 0 O 3 — I O- -7.-t O —I 0 • . i m 0 W O 01 .•I CO C . ACit: 1D 0 5C, '�CCC! a 'C C 'C 0 00 w 0 0. " N �0 NW �0 E O r '- H O_ ON CO N >1 N 0 0 w 4 _ -J >1 j) >1 y 0 a I 2 .m ., co T — 0 0 C 4 LC Li n j, a_ ~ U to a a t < < 0 a N > Cr 0 0 a ._ u m c w CI V1 ti e$_ a u a O N .+1 c 0 c c 10 COT 3 } C Z ) OD O ''' '. u- 1n O N n 0 on O 10 C ." N ~ J C 01 O 01 01 O 01 c 1° N Oa it O .i "'1 o c > 2 W I- U N 0ii. 0 y _ O ¢ w •o t y Cr u o C Z J •] -1E a - O 6 p ¢ j 3 C o o 1!'1 U'1 N n N 10 r+1 a Y.T. E C 0 C CO I �0 ' uA• •OD N n 10 10 o In I.w d a iiiii — > N .�' n •O .i 10 E E c 0 L-'ff 3 F, g, ,• C o o ,-.1 •< .O-I .�i m C N C CLo c 0 g w w 0a 0 0 O e •� Z > u- N 0 0 N n 0 0 = = 0 y '2 W .. C9 o c _ 0 0 ` O C N Z 'Ci In in < in in N C C 0 > 0 4 T m co w c ..1 ..( .-I .. .-I .-I .•I E E E m L w r`( O _ eis ¢ ` j>_o COI a1 01 CO f•1 c .i n 7. 'c `- y 0 - co j2y • • • • • O O U W .� v— x0z 8 • 01 CO CO a1 e m N i _ a E w E 2 0 :0 .0 Oi. .O-I, .-I-I .O-1 0� c m o '• = 0 0 C 'E V O W z 0 06 6 a — ewe Z au b, b b b b b b >4 d >„ i. _ c rc Ce N FM z 2 z Z z 2 z c E c�o �• V ot OO 0 y� CV N N Era E-o Et U E E CJ • p�i uCZ 7. cc ial 1 s EE N O 6 :en O 'OI = o EE' os 6 ID 4 4 N k .i C- E a 4 W W 16. •1, 0 2 . �' „t...1 U r0 - 0v - 0 ; - C O V1 C cu0 _ g ...- n 0 .-i < O N! o m 0 ❑❑ 2 c v N 4 4 f(1 . I I t- •••• _ 4 v C CC C C u� g 0s `� +� EEU 0 0 U 0 0 as j p' W I °a ` `- 2 N O U 0011 1�-i = U O E O L — 0 o N 4 Li y 4) W I U N o E P=w 3 C) W 0 (0 C C C N; A ° .9 = ge " `s O - o a 0 N L E NI N C 4 E E t i r. u 0 •- O N .. � 4) -LI .4I - - I s vi a = Ov 0 0 v � " i $ 2 2 ` = 3'i R �@off V L . a C Ad id O $4 $.1 W W W W 2 m C I E G C w =I O O W O O O O O '> o c C O 0 0 U r ` - 0 c s m U .CO -c .C .c .c E c c - y : E J' O c o �N y 7 a < - E N E c c` _ y0 92 I0 �qy O O O a !� m o 4, v, C - u c+ JI X a L y _Y CO co cn tttTTT]]] 0 ! 0 O N O OC U Q O 'O,' 00 J = y y VVVJJJ - - - - o o o Q E v c c T -JI i, •c Z Z O O in r O VD 2 a a u, c v o— " m p L i. .-i --I r E E m c E R c 3 uu vl • 0 y1 < : o c O ¢ C— S O 3 a u. C o o c c a a o c u MO V1 1D 1� co 01 O E m m t o E o C0 j. p - N N NJ N N N N G > 0 E 0 E tr. r� E D U) r I- 2 2 i- O L' L o L — O C s o x s' 8 O .-d. CI 3 .i, a a. m U 0 o Qa. Oll N Z C co •O •❑ d c m p C C C C C o O O — IV N -0 — y 10 CD CO f0 f0 0 (0 0 CO E it C > < w rt di u rti >1 ?i >1 N p1� iJ n c< w a.+ +� >, >. >, >, c C a — I Q O G •.� t! ti N I•-) U .C)) W .0 h H QinJ l u w n 1 w •- <Z O V b d CD O l 2;. + + m - CO� F O o u' N 0 N CO CO O ON o go o y 0- _ C Cl 0 CO Ol Ol O O'i c `• y N �0 N� a a > .--I .-I O _ j w M- p LT .9 O c c o G C) U M O wH u •p ti, GU < J N 00 M N N l0 M e y E c -3 O co 3I ^1 i U CO NCO• •l0 CO 0 m m a 0) .i w w C r as N.— IN e0 l0 E E E O a Z • • E c ¢inU O r.1 inN N Ol n = O = y U) Cw' 0 ,-.I 00000 a c co u y • 0_ o --Ii. .•i .i .-1 .-1 .-1 c w w - Cw a v0 a o c c' a •"'� f r M 0 r N 0 0 vs = C C N it Z ° ° Ln a U1 Ln in in in C C m m' d a O CP w a` .i .-L .i . 4 .i .-i .-i E 1 E �' gel ¢ < ->=_ en to o el en o Cl c = o : d B o co N` • • • • • U E f/1 •Y— k - C o Co 0 0 0 0 �'o c o _` = C E c a.3 C EC 2a a U LL C — _ z 0 ❑ " a gg oLO5 I. w p•4) B '2 '2 '2 '2 ,2 '� G7 c -' t= N— n 1-- We . i O 02 C _ w� Z 2 Z Z 2 Z Z C r E= m c _ Ca Z .a) JJ L1 . 3 u_ 0m -' Z o N ai 'cis tit w y o_ 92 (� U 0) U) La 4 c E c_ sw U U U U la .010 tau E =-' ` r U 1 1 1 1 U U c m E c a •0 E ` : E W E O c. ` _ w t w Lu w w wal W = dam = IV N O N e ri 01 lb N i = G u rest— 1d I Sw 33at ),a 1n E G C U)6+ L L9 V U V U U 00 Ln c0',.. 0 _ ..L. . c' t a\ 4,,. a ? U. L0 LO LO R1 f6 < N I n , v au, ≥ O _ e L L L L w N L' E r u a .4 a a Z 0 < y V y C_ u r ro lc O O O E t �. r, c c c c VI L U In (n VVV]]] b cn 'J '3 1 T_ _ N 0 0 S w w w w w w w Z ! c c Ea - ° w N 0I ^ 0 0 0 0 0 0 0 p o ° o c C — •p L'' i L L Lp Lp Lp Lp pQ^ ' E u C• - c v 5 = `� G i O ifit C u C _ U I - c >_ — 0 o f E 0 .-i in in 0 l0 .-1 Z L " - v "6 - '" u J y C N N N N N .- ri O E E ¢ o c u 3 C 3 C - J C. . ry U O0 L a.. < ; E C 2 6 u C 3 0.� LO G 0 o V O c C p C c c _ 4 et C U L c. u — C v. ...... ot.. N M N r p D 6' lT V C F i '0 '0 � W G G E LP,O C S o N N N N N N N a > > r u L c r ^ C. H co h- Z r CL .. c 1 ' O = d AC O its .-1 C 3 •... CO = d T I CO .--1 0 to o , -I Z - '0 'b > O 0 O E c 10 O W co C O h to to t <I- W ~ d U >I .79 a) O. O x z c it C ' < U5 O VC O ro D >' o ~ a o Qf d .O N '. 4) > G 1O 10 >r cc in —ii a 0v <3 4— O 0 C a� p07 c 'tic d 1D m L 2.— I t C �'' m i- .T LOC V Qt Q O jNj N O J j o c > fU N a LL p 1.11 •o' o d C) ILI U V, r1 a a� I1 24 C < u=i 3i �� oo' r r h aLi) Dia E U VD VD N• N 1 ICI .... > rl a E E c• Cl • = o - C N r� w 40 W a O d c C .�— Z K O r r n• h > 0O 3= to TA Z 0 Lrl— �^ o o d X H w ofu W c ,� = E o ¢ o > E `o .� z J �o� CO 606 5ON fo) = 3 C m E c E o CD O h _ C C C7 '.i d = C CDC CI, ii U Li U _ w Cl Cl a W V .�1 Q:_� >N o — o a J yL c C_ = = F,>, z z C co r E c li . = do Z 3 N�_ N V U U) 0 3a �' Q E c • �I E co �odti w w__ an 1 .... ►O wH C U G ♦ r en 111 fV _O 0~ a tn .� C a E Ni- r eC — O 1a ) ) 1! I e� u C C C N Q I I Q a E s.+ L e!p W C z c v O If) _ .!C — C es ... �D p C) U C► i 1-1 S. U O E p"a t .L) . 'J ' UU) O •�_"' o �' 1"' • . (I) ' 111 o y� _ _ O iJ iJ < 33J/' an— o.C u eC ti c Q= C 2 C .C t to -c _-C C w en L V U] CJ) °6 O� O I 3 G _≥-.- 'n O 0 z c c i E o c N O 1:..t W I '> O I i C R i= o 0 0 » o { c E r O L t s 0 L G in Q tJ _ to < E la, o - c � >. 0 c n Y.I yoou a R 0 v u c c O Z 2 rr o800 O xl . L U o o E a _ > e N CO CD J z r' 0 N c v O t y v c 0 6-1 O 0 E E a 33 E u ; co 3 ., O L y1 , G • E! C C C C O 01 • 0 "+ 0 . a L O O o c._ y ii G LL c c d ID C..4.7 ---C yp co C1 F.3 co 10 O c ¢> p W Z t0 VD W G c. E v -e �'•C N N = a) c G: c O to r Z C — Job No. 22,860 Structure Weld County Disposal Date Inspected 9/11/81 Daily Report No. 20 4 of 4 Footing Location De:th of Excavation • Soil Type water 'Conditions Recorrer.cetiors The contractor spent most of the day reworking the bad area located 160' S. & 175' W. of NE corner and is 120' wide and 300' long. We were advised by the client and contractor that they were going to wait until all the remaining Bentonite had arrived (Approx. 7 loads by the end of today) until workina it into the remaining pond area (Jr) . • By Tim McCann Field Encineer Cher. and Associates , Inc. Jeffrey T. Johnson By: D.H.A. — CHEN AND ASSOCIATES Consulting Engineer Soil and Foundation Engineering MTDRQNCT �M•ST$I$ J /1[V( LM•lwlf T VIA[ ` ,, s stasseo KLI[L� I CLAY NUYi Y[MIM •�• Mf �� •�. IR• •IQ.' •••� 10 •r •• W w• 1 • re r I t i -$ ' 1 , s i a' j I �� 1 } i 4 -, 1 4 Y 1 I I I a 1 _ a 1 I 1 1 t i# 3 ,1 •- j 1 j c Y so f ' awl i 4 } 1 1 i ; 1 1 .. • le 1 i I } t # l rx r 4 1 , i L I , [ I t P y lea } t ' V . i s ' 7 I ' l ~ Y is — r t i i T i j OD 11 • , Ii. •r — S •R m+ •NOD WI a r ••e 'I." a• I. T wi r • 1� NoL el — DI Sc q• I LL IS IILLP is EL•T I I A Si.?IrS.RUTICI GRADATION TEST RESULTS — % SAND % 'II SILT AND CLAY 39�/% LIQUID LIMIT 57ICITY INDEX 47 % — MOISTURE - PERCENT or DRY WEIGHT • IC D E0 Lf 30 I.0 INOISY V•L -••r of•HT• Eynon, I 1 _...,......'...:a 108.9 I _ j .-fl-.c.,.- ... 15.0 ISO — T iL -1 in y or— 1 r • i I 1 ON Ci 11• i. Ill Q loo 4 — a o y I 1 1 t 1 - COMPACTION TEST RESULTS COMPACTION TEST PROCEDURE ASTM D698-78 Method A — SAMPLE or Clayey Sand :2. 860 r.0µ 120' W. of Sr Corner DEPTH , ._ I I O _ C-0 {,f\ M Y CO L O N \ 1 .a 3 O • 3 Co N W .- LL V O L .. \ Utn 01 0 . -o -o C >> z O r go C0 )D > •- C p -- i.- O o — N ° ..+ — CI) +� . U 47 E fC > W W 1 O. >- - 0 a W H J >.• _ C) > - - d as C 4 -v >. .O L L I Z .+ .- ro IDC r >.a � b a in O 1- N U N D >. O ++ F O v D t L` L '" in N I > V1' V - c C O CL •-i U + 0 < CU ) a U 0 C ccf I" .0 N. 0 CO 0 LA c c • Z 0 W C CT CT 01 C71 01 m • C C) - N n O L C1 N J C, u 44 40 c a .ge M Q c O ^ m c a ut 0. Vt 0 W. ` c u p Cr W w ��- .O 01 M ^ O - cc -1 m CU 0 0?Z L L 0 • 0 N a v E p E o 3 a oo m h o. CD -) 0 N 2 V n in - C 1 o a O 6 a)— > Ln ore) •-• N 0 .0 E E c D ' ._ >, •o c N v .N LT UN -T .0 01 O '0 'O C/3 o .• O O O O c u '9 v C .� �= Z > V .. N. 0 0 N. O b w m C �.. N I. Cr LIN r LT ^ LA - _ ` n > 0 ro m Wj Z . • ^ o O d H W X Co j o-_ 0 01 01 M 0 (T 0 a 7 a 4, L O ii m CO C • al 4 < 2> O c _. .. d 17, m E v.) f- • c..) is E z. 01 c0 c0 t CT co 01 c = Yto y Z x 0 ^ O O O ^ O ^ o 0 0 a — p = U' o = . d o Q1. ii Q W 0 C W _ 0 0 0 RA A a el P.O W >O = v 1710 '0 '0 10 IVC. o `. I0 ( r9 CD R L c w rr w L L L L L L L I _C so c 0 = C." C7 C.7 (.7 C7 CD ( 4 >p t- a> >.4,, Z — •c •- W> 2 z 2 2 z Z 2 �Lf77� L E a v C� r. C! 3 = @,0 Z m a L d- L °- C.4LB.n a1 E c t o V; N dcmc op O O I R - E � a 0 Z..9. a I ac I C V- w. L"0 ! o ! !- Iti Ln �c m (-4 > Ec L '_ L ... I .�. ! I ° cdor C) L L L L CO VI L O' i . t L a ac) C C) C) 0) 0 C O1 0 U C' C C C L- Ldrf� C '..-F1' 7 Z c p= z u O O O u Lc " ° o,"_ N O C) U :..)E U I U: 01L 0 E c•—'° O U V) U.) LLI I W V1 C NI CI H CU = u -.. Oc0 0a0 ti C) ` L- 0 W ' Y 3 ec _° a_ o __ o C o 0 0 - V) vL• L 'C tRO'COvro L 3 O • 3 _ c>..y ro co Y 3 La 3 3 •o zO O O - LLr - _ p O c c cR ?40 0. c0 0 V s 0 LC1 O 01 O '• •L' N C _� ` vi 0 .— ... 0 LT1 Cr) -7 H U ?. N ` N N N U I c. 7. N c _L'.c 0 L W 0 W < E C• j —-- cecd PM w w w w 0. m` o C) N C . L: >r O C O 2 i i 6l u Ci O C C C c — ++I{ rev 0 2 • 3 • • • z 0 1 C I .-+ • 2 z z z U I o 0 �! E . c c >•v X G 1- - - - d n` 1c O �- - u 0 J = O - 111 - - - 0 ZO I .o c or c u 3 y c CO LA N L!1 a 111 O N IN N. N. OO H I E C O. gv cR c . 3 • LJ C < . C C — — 0 C a N O• 0 y . .- c C - L V t C .— d LL C z ^ I N. N- n N. ^ 0 O 0 E 0 Eu, c .0.c Q N N N N N N N C ? J. 0 d - = 0 G D- 4 In 4- z 2 r c c • r IA Y = CO O _ N• I C 3 0 a \ LL O Ol O U ID II! I0 L) - d '0 m N > O 0 + ac CU R 9 C) C: U U U R Cl)w in J 2�► L t% N O 01 Ll1 E .- •.0 I- CO z O G L a1 01 a1 01 00 a1 m - c w- N CC .Ti Li-O U C In R 0 O > a 11 = - /0 0 N Q 111 O W 1- U 47 0 C; U L r\ w c 2 N reN CO CO M r+1 LA FU 0 Z Y W r O�.. E.) 0> co ap v w 1n 2�` .s • o o M a E 00 a'O O 0 C) " 2U 40 C, Is'Is, C. .o o r•-. E E WI O tip OW3 a1 %O CO 0 0 N — c co u C • CC O as � Q> eN — a, h - W V W - to O m c C> �� •� Z r U. t\ r\ O O CA v d ti Q U N c O t U LA L LI LrF. h . 0 CD Z < O r — O o m y W Q co — it J m = r M M M a1 O1 O a n ID O m N •- Q 4 O).H • O O d U rfJ }— U c 2 n - . ? - CO CO a1 ' C j C n m E lc C •e — 2 O o O O O O O O c a�i c0 C7 (V=� V ii U 1i CC (4R a T Z 0 0 YA XI 7 f-- _ alO a L:t o d C) C) C) C) C) C) LsJ w 0>2 '0 'O 'C 'G '8 'C L P C C.7 O w r6 10 ( rC r6 1D r0 L= w W L L. L L. L L L c= =S O C7 L7 o L7 t7 C7 (Do G H Z— - C N 'Doc C F W d `� R Z z Z Z Z Z 2 a:: d = O c s?—' Ci c., d E 0� Eltz h U t' r c k _R E " I c._ c: • al ≥giin b it �- L L L L L L L I I ` C.6 - C) C) C) C) C) C) C) I I I v u _ c L L L L C L L 1 C C% C 0 0 0 0 0 0 0 ` C eb N 20 U U U U U U U I� = 411 C .- P.0 �O W La LW La w w w I C E.- w O V ul N Ln N N U7 N _r I I h = O CO 0 I N N 61 C7 1r L 1.. 1_. �. Y.. %.r 4. = I I Q7 C U 0 0 0 0 0 0 0 tar ! Y I = R� C c- — O < . sn y ar. t7'-'0 C G% C 3 3 3 3 3 3 3 7 c = . g rr r9 Y .6 0, 7 I o > H - y 0 0 Z L11 Lr1 - 0 L r% u1- - - - ≥ o C R o c N O ." -1 N M N UN Q1 .- P. 0 _ E .ti I I � ? 'E,. -LE D _ ( L W W w' W W < C L E c _• O , >• 0 t= o 2 I C. d U `_' o. c _ c� c r+1 0 Z Z Z Z Z Z Z 0 O C U G O' ,,, • U o `o r E occ >,a -- 0 0 = Z - 0 0 0 0 L1\ o Z D a o c y o v n L)1 O O -- — N- O E E a 9 .z3oL - • a.+ C N N N N < , C C O. R G R 0 v C ` t= C O 0 1+ y U a -0 O O c c= H 3 a La < 0 o I CO a1 0 N 4.0 " 1ti ' , c a, a c W 2 r` N- r` CO CO CO CO U U v L sn = r✓= O N N N N N N N L a a 7 Spy ? F- , v) 1- s- Z 4 H 6 0 .c c L — r • Lri =I c Y 0 0 co -J 3 c L`•1 � •-• N0 CO LL O L) 0 L. -C TI C > 01 ei C7 -v q - 0 O m O L 0 c 1 IC0 E c W co 0 w N d .C > w w T. o O .a 0 2 Z .- a 3 4_ < — _� o rD 0 I "' '0 .a.0 r ,., N ++ C '0 ' 61 w N J a t . 9 t....L o 0 u) •- a Cl c0 ..D Lry UNto CO - c a) — co Z 0 C L p - 1 Cr Crt O1 0% 0 on cv y CO -� H .-J (.)0 tJ n C - • N p C > N 0 a LL c .� 0 H w I- O LJ1 0 w r u in tc .0 O ¢ U v M W ¢z 01 r 0 M0 m m lc w IRo o - O • O. a�i E 0� 0 V) d ^ 2 L) w C. V) a • a) v a C. y L11 O ♦0 N 0 �T E E t 0 —7 • • �. 0 cinu r'^ ^ 0 • M ON — C U) 0z.5 0 0 0 O1 0 0 0 ! C • tz G Ol d n C w Cj LiJ C O •y C C > •C 4.4-1 } 0 0 r., 0 0 O oL 0. c L) w in a 2 f L11 Nl L CV Ilfi 4 p O - ^ Ii � c O1 01 M M O1 ^ G G -- Uy !` — CO U X g z 8 CO CO - oo 5 '° E Z 2 p O O b O O 0 y 0 h = — C7 �j� S - c C 2 ii U r O - V� "' , o 0 o R Q z sr et O a e ti$ a) a) 0) 0) a) 0) 0) U.) W0>- -0 •0 -0 -0 -0 .0 10 12 0 >b aa ID (C ( ti ( t S an w L L L L L L L c:_ ti C - C7 C7 C7 G7 r. CD G7 c.7 m d v) - r = ' C= C'P Haw Z Z Z Z = Z = .- d.- W CiN)= Cf)Z Cth v 8 = E0= Ecao L`. r c C 1 r a — E .C d R..... a, i7..r = d c m = a+ LI C Z u:ti 4,4 Lri r " O a) I i � c~ a ' L� I I I C •'� L L L L L I 4 U a) c) a) a) a) S E I ; i ` C- - 0 I I = C C 12, C N 2 U 0 L) L) U w Sr. I E C O,C f E a in W Lr.1 W Ly) LA) ^ Lr\ p , O E '`-Ln C CO 0 V) L/) V) V) N N < N 7 U .6 N N Q 5 , _, Li- 4- L� 4_ Li- L L C l z d t u O 0 0 0 0 a) a) LA., c Lc c _o .- O c cin u v - •Cu ... 'V C L L 2 'c . ,E i 4 C C O G ( rD lei 3 3 3 3 3 0 0 z.c - in Ln L t) U L) Se C•+ - C >_ - N O O = - - - - - Z C C i E a O C G) -- 0 0 L A O Lr1 3 3 0 '• > O i c r > 4 c in 0 ^I O� - 0 ao z z I E A ' ` H c Y ti E U > N N N M -- _ — 0 L L. 4- U f a d aa _ is- cc. .J L4 L' .N W 0 0 < f t E 2- .C- c c - >` O 0 OI 2 a o) N ` L c «+ M o C o - 0= c X C. L.I Z Z Z Z Z N) i.e) V ; ! ? O- p O E s O _ c 0 0 7 =I - - - - - - - I m •0 0 c m c — L� O ..' I O LA 0 0 LJ1 0 Ln 0 .0 . a - c•u; In CO Q7 in LO •— 0 n E :2 • .i... G N fV ^I N •- -- 1- E CI a a 5 H L 0 L a+, . I < • C C _ _ c+ c C H G_ >° al y 0 c o cu =z H G - LA COA O<1 N � — a Ls . o E c a j C — 2 z co co r••••• r..... co < co w a . c — v . .E c o N N N N N A Na.L >, > c c L C C C. c rr) I , I— Z M ,— O — .. � 0 r IC -o a, sr. . o co o I 3 d -- N O UI `Q is, O o T) ...iiz oI �1 " o da o— 'O 0 O (0 NE � a a.+ n vs . y — W w a >- P..• $.- H d 7 >. _ C) 0 :1c,i. W .6 O = Z (0 ++ — - >. - ti CC O W a LC � to In c-p 7 %G CO N. �p U1 E ri CO Q CO 2-- O1 O1 O1 O1 O1 n - C L. Z W. O m n O 0) -.. N Q C v n at - N C ..j J N CO an a a u' v I ea 0 y W 0- in O w. ( ` R .0 O ¢ U 'D W ¢2 (V O Z > ' CD C. .7.'14' CO .— N O y a, _ V O < j 3 0 o o — O1 r� .o r` h 0. E IL . so w1 0 r� E E c 0 c,t N. 0 co co .. O 2 C vj O- O O O O c v CC • 0C C c an, �w .� �i LsJ d ° d = u> •� > _ O O O O O co n C44 CV es1 C•4 LA IA a p C N O O { C c > d 0. •�O CA• Z o o d n w i- (1) l�.l C C C E c a ~ �► J O 2 s .— .- .- .— O1 'a a V iv 0 y (.0 •� V J x OZ 7 C C e2 4) C °: I. U o. Q LW v - gG Q C >0 ii Q a 4 ro G7 C) LU Ow�j_ Co c0 'O W m 1-00 (a L d r 0 = - N -- ce cc r.7 E T n — e - �c o enc IA C. z z z z z card n ^ + E` JC) 1 of °� E c z o u 2 . C ar II id to VI • U L G.� L) ` •_ _ — Ls ; I I a: a 2- E = E L I tzac O O O O CU c ; c G E N - - .0 0 O - f'•'1 N I I ` I I C p` n O O V J CO M W < I i n - u CO O V) k n wEIAt7 v -. 0 - o C W a) C) C) C) ` 4- I . Poi a L P v f C C C C 0 < - r ° R cc C C' E L L L C fr., es Y 0 0 (_) c0) •3 .tl i - E I t._ C = va N L j c' C j I EQ E O O z ? 3 3 3 - o I ! 's 4 I cti ` au Q O vi (n v7 ^ I E U I v N - C L 0 O 0 0 W o C C . . . . • 2 u n ., cn z z z z O i c o E v. c ° >� O X L - - - - - I La — O 0 C' Z 1.11 O 0 O u1 z I .0 soy' p v: -3 _ L) CO J N O UN O an S.' u ...r C N N 6 �� co c0 0' O1 w G . E L n- ._ ,v-c O N N N N NJ a ?• >. C • ^4 - ^ C. (n I- ►- Z 2 r c= _ c Jot No. 22 860 Structu'e Weld County Disposal Date Inspected 9/12/81 Daily Report No. 21 5 of 5 Footing Location Death of Excavation Soil Type Water Condit ic'i Reco^i-,er.c=-tion . Contractors continued and completed reworking the area located 160' S. & 175' W. of NE corner of the pond. Toward the end of the day, the con- tractor had begun working the SW corner. We noted several wet areas and advised the contractor to allow the material to air dry and re-roll . The contractor lacked 5 loads of Bentonite by days end. • By Tim McCann Field Encinecr Cher. and Associates , Inc. Jeffrey T. Johnson By: D.H.A. • O ' wmx S C 1.- co a 7 O M LL U O w O O > O U a 10 c ID C1 Z p - e0 O y - - - - - O eJ) O e0 �I U ' a ,.'' O— H c N H 0 O =TV d Z N > LL u v c i c O W ._ • c2_ t- C co Z m p M Et C{ �C C'1 CrN 01 C1 C1 C'1 ¢ •- c d O u I ygo - -> N I- J ..I W C w N O J LT J N O co LLI I— k.) O ~ 0 w .0 I0 .C O CC U 0 W a 2 N .1 e+1 ^ C1 01 0 O mow_ • V d Z J m . C. NZ In N .- - i c. o E it it et _. ). 6 vs -- ^ C1 -7 E E c O '' . • CO • - ,., - o C to u Lf1 •.0 • a •0 N O Ta 025 C 0 0 01 0 0 0 R cVI v • W O •-I CD - d O ic d c C > CI ��mill z U _ .I O o I� ♦ . O ^ Of . h a c> 0 U Uol U) Vj Z i c o _o O 44 1.1.1 C, .C ≤ o O Iowa J c - F^ 01 C1 M M C\ M G 0 M d V C> H 7 2 u • • C a 0 ti E W •� -- <Ow u O O O O O O O c O c " C Q O C N O N = C� ZV �y I � C 0 C 2 ii U li 0 g x LLI-I w 0>=_ 13 '0 -0 '00 o '0 1D 00 ('J' 0 e0 ID e0 co co e0 f0 0= c O Li, L L L L L L L Ca C7 L.7 C7 LS C. OLD )w ` a > w —• CU Z "-fa c c D CJ on. = z = z = z z C -' N V OC-) 0 4) E d LA O U ¢ R C _0 q p r._ E o sall _ o a ti aj 0co O^ r. :II) 7-CL) toNNe0 ! IO ¢ inM LI y 4) d NiZ NN 1 L L Ir, G V•f- r 4) U U U e0 }+i `- O C L L. U +. L: ' G V r U U C E C N' i 4) Q L L R cd C E O O O a I i o a E ' E E L 0 L L L d2 I I e0' N. I _ "0 0 V 0 0 t- .. L. 1... t- L1� L C - -C . C, - O L N 2 L L t• O'{ I 0 a). - O ! E 0> — •0 G w t-. - - - - I i I N' 4) 7 C C C._m 0 i L r - O in M J I I Ix O L = p > m , °° _ 0 - -o ,n N e�+ - I I "', '- I M y J N L 4) 4J 4) 4) 4J w ` • . c L C v'v 0 .— L 4) C C C < •v+ V y I tr vO O O — — -.7 C 4) C L - L L L 2 I C e0 i C C. vii LL. u c L. L.) Lp c� 0 tO a6 I O1 D i ; 3 C= ,. a i c C ._ ' E^ C. fl O 0 3 3 3 w w Z I i > ° 7 ' `o .1.: >c) �' °C' le) c0 — 3 v) to to N U) �- I i o u •C I v O5 L E 3 v> V I I - c Q : L ` ` t— C E C' I c - C . "' l0 0 0 0 0 0 .`c U ` v c, :T �' cal L.- 0 • • 2 °R' O < ! o .—c- - C xi a • L .• w w w 3 3 O o o I E —(4 ° c )-4‘;' O OI = = w - - - - - Z I d o` mc c c_, c ) L) CCI J - 0 u'1 O 0 0 0 A ti ' � c 3 c •I •� C CO 0 0 ^ NI o o — P . I ; < Z _a 'AU 0 L i1 4 a., C 4) O +• U . t o o Co— 3 c.. LL < ^ % L I C C C.. V -'C ""' w O 01 C1 01 01 01 C1 01 U I a1 C) L 9 - L C> C Z N N N N N N N U) I . . E v._— =%-,I..- IX D- Il O W 0 I 1 I U) ! I- - Z 2 +- C L O L G ct Y f•1 7, O 0 4., 3 CO � • ` .._ j >' en u.O W O >0 L..) 0 L. - d Cm m Z • cc m o o b 1Y c 4 C h ` ) E c> u) d _C 1- � I- c 0 obi = Z. 10.< u1 O u T.O z Z 1D QaN ON y I d NLN j 0 G u CU cm¢ILI a J < 5 ti _ z cn a0 i o o f of m a1 U) N o U y 10 N CC Ea L. C c > N 0 a W O N W F- O t.11 C W•- U a .0 m m `� NZsE. E O V W 4 Oil) c > `� � t • r N 0 C (� Z 0 o O d a fp w Gy sy c L E E c a d < ~ M M M• p C 4 d v °' co �� U xoz c s .t. c 3 c ti E G Z 2 0 O O O o 0 o _ c C7 c 0 c = ii U I.: O V a et O ,C.C"=p O) G) G) C w•' fp fp l'J Z= N 1. C 4 _! C7 W CO C7 C7 ` C) ?.N Z > O O r _.1 00 z Z Z L �_= d Cl) r f I I C N Clie v uZ - I o_ c 8 cEo_ EtL o r I c c n c O 4_, s � edK_ 40, I : C Y v �, I = U,�_ r Y CU -' VI I i O R N g = L NID 10 C~C-) O) L O E U i v-0 c u d 0 E O II CCCQ, 2 L ` = c r cvc C'o - w I i _ ! o c.c '—� '- ‘CD ` 0 - - c = o s•.. C O {� <— I H N Ql " a Co L1 O L LA N Q d I O t L d L L , 'La x cc.c C v O a cp 10 I U O O .D Q, c > - z 0 Cl) L U U Z I C C i E "' ` ` O O W '� O I C C > C �; G V) W W 0 I ! O I r E - U t/9 l/1 0 E C_ C L' Co L 0 .- W < = E I = C r 16 0 0 C. R 0 Z O C >. O CO v u p C u c . O c 4v"). 0 3 3 V o o i E uc ° �,C_ 7 X C L - - _ Z u W w c c p E v 4 U C� ..J 0 0 0 o E d c E0Nc3 H c C. G ^ i C I C C _ _ C C O L y1 { V r O O C U N �- O_ LO < tl, Cl I tit I C) I Q U ! 4 0> . C C> G �O i- eV I *4 l M 1 O.W I a .o. E " '.7.-• c/) r > Z .d �- 5= .c 0 Jot No. 22 ,860 Structure Weld County Disposal Date Inspected 9/13/81 Daily Report No. 22 3 of 3 Footing Location Death of Eacavatio^ Soil Type Water Conditicr. Re:onnerdatiors In the area of the SW corner, the fill material was still too wet for proper compaction. However, the embankments were tested and passed. We gave the contractor the ok to cover the liner material on embankments of the SW corner. All Bentonite had arrived by days end. By Tim McCann Field Encineer Cher. and Associates , Inc. Jeffrey T. Johnson By: D.H .A. a O C.9 -J T O S C L U > c0 O O m - �_ 0 — ` w 0 0 u c.≥ -O a O m-— w W v 0 aO, 0 0 c -J >Lea a al d - r r 0 a as o -) n < w a > >. a p w *8 -J co a < = Z •-• .-- >o s-Ln O co u u a > o (+yl > O O li u m a L N cc in W u m c L No O co ca Ln c p v al Ll1 LA LA CO S LA 1 a) OO .z O M p ra Mal O1 ClOl Cl al ClOl CA ¢ . 00 N F J ♦+ W u c c N ¢ _i C O c > O LL O N O W E - N •O❑ ¢ U u an c z w CO on 1O M - S L U O - Z > W -O Fw_ • N- • 0 0i CO m -. M y i f - O r"+ — .in E • d O o o Ol V+ n O, 0 y C 3u Tv N in m CV d d a • u .- > N an r u-' E E c a m — ^- o Y > y !JJ o W a O Cl O CI O CO O t0 c v A ¢ • CC O Cl Cl O1 a Lo L w 0.1 V L'-' QI O —0ui O L O C C Z U _ 1- n O r- IN r` O F. = m m _0- C a] ro N •_ U, 0 p f LA Lei Ll1 LA LA LA It, C C W L d O 0 O in UJ•r J m 7 > M M O M M M a- 6 n y y U) c Q .c 2>-.. O O u N G4.S v Roza - • CO s - CO 5 m E ¢ i^ _` a o O O O O O O O o N o _ _ c _ O vj UF- x _ 0 0 R id a R ¢ - � 2 I- z O oft O a O P m a) a) a) a) a) a) a) L1J O>- L io L -O 'O 12 C7 O �' N aJ CO a) CO CO 1 0= 0 ).-O W L . C C7 a O m a a a co d° >N — al — .M ≥ ccc _ a = = LU a a = Z a Z Z b c ` W≥ C. in O Ca CI, TA za- 5 _ N V O O c E o U N E C L O L O N dmccc u n % — E m JillNH L c COm N I N Y' > E c '� m u' a`) u� c L ' 7 L C L L L d•E ' L 0I s_' Lh. Y E E _I C L. = C illC c. _ - ° o a _ L.O 1- i I 0', in; - L'' o f rn= tv O 0 u 0 0 0 L O — 4/i o f c .—v. 1O 0 O O u J u'. a)' o +II nr c O ` N c COO U ✓3) 3 3 3 < ' 0 N 3' - u u o O 3 N v. O >_' ♦-+ N N in in w - in C E a u L W s C`Z. v L N Y- 0 L- L:. LH C • y u N C S u �p C i O O O O c c t a Q c o a C 1,v - N � V O U W W W W W z C C �a'1'! �'I E c . O in m O O S u - O I '> o L 1 -O ` - d Ts E 0 OI 3 in Ll1 M O O O - O m 2 v c c _ 0j - N N — Ql N en U r O. Q E O C = O L 4- < E C.)I J [ O c N •I r0I L- O W W W a w O C 1, in T O CI 0 o W E u u O 0 8 p C M OI • W • Z 2 Z a Q O O �I E _ O - >, E 0 x a L w z Z m c w an . o o o O O =I Z - _ - - - O .0 r N .E . 'u ; w= u m _) - LIl - Ln LA O O E E a c c o ; coI N- OD N.. W N M - E o _a m c_ u u c O- U- G • N M Ll1 ..D r- F m L O E % P cR o 3 F i en O O O en en rn rn in o ,)O w I a a E - N _ E O r• .- Z , ct _ c c Y -T -0 O p.- .J fri I C Q d j‘ Lto 0. OI LA O ' u ' c d m Z �q'll .+ CI £ W w f 0 �' t..) >- -' O _• W N 0 = - d d r r I- c ++ - - - > A .00.p I Z d -I CL) - >. <v) 0 u > u .0 a ODro .J y . NWLN > d O u CcC Li U - O R i:E c0 2 co • 5-f C1 C1 01 01 o- 01 01 m E 0 U N ea N Q J O • cs.) l— . C To ≥ O LL "� O H W r - 0 v .W 0 C 0 cz N N o - u 0 Z J CD Ifl LL yZ C• 0 • � � • 0• a u w o Q j re o0 m m n 0 7. O co 3 2�ce d d a CO •a .- E E c C -^ r- • r` • • >, 0 >--V)u °� .- rw-1 c' = o _ O2 a r- 01 0 n'N 0 0 O1 R c u C Cn L., 01 Cr) 01 D1 C d C W ID^ C 1./-I .. r-- r` r- r r'- r- 9) ID n _O C "'!I LIJ _ _ _ ernc0 0 .— r C C N d 4 O V) Z < o o E R a a E Cp W e c c p 'IliwA —J O > M rn s e+1 M a or _a y, 1 C fU 0 ►-- — `- �.., J -C y rT -T - r7 01 rT +7 - C - C N �, ix- •C•fa i W 0 0 0 0 0 0 0 G O c - (} ZA r C C .d., LL (.) LL O Z 0 0 A@ 3Z A a �. - p` - '- co c)441 W 0 C] O C] O O O O O W" < G < < < .v Z ; o o c el h L Z R CI? riD .-r Z Z Z Z Z Z - c c O Z "c' d V a: E c z ° V R _R c + R to i 7....2 t a p. y . C I D- h Y I f I - C. . co_ I- L ' N 63 L C) CJ L I L L R G a C C v i LO 0 i — I c o c a t•.4 2 c u u 0 L l f = E v = — o u 0 1111 o 03 < 3 44 tro vii vii 3 . ► O CU _ O = b fl' 0. O O - 3 O I > o n 0 0 — v3) I.?\ ty1 U% U1 - N i 0 I ; a CD R E r� 0 _ _ L. + L t� ^ N \— 0 I i L C. I E.' O C L.- 0 I'D C w 14 44 0 . r+1 co 0 ., 0 v v o o ucc - C X .., • Z Z 3 Z Z • z 0 o I E e 'r O L Z U o C 4 t 0 CO cz I c h < C. c L , p U1 - - I 0 0 v, v. u CC 0 0 0 0 0 E E R , c R y ,3 • .J C N N 1 I- E' C 0 n a 5 C v CO O L ••-' o E • �+ < < 0 c c v Gu_J � �CoO '9 14 . o�. u1 O O O II OO U c a L lull MC•1 dG � 6> ,� C Y coH L. e C \ aJ L 4 _ .. _. Co - )► O m \ la 0 V u > 'o co — I (7 _ ro cIn L1J W W O U) N d -C O ♦.' > 0 Q d a < W r = >. . -) o. O W - J 46 0 • Q V) 0 y L) 0 f- L H Q O 9 d C 0- %.- 0 N w _a aZ_ 'co To re LA 01 N r 0 > ' U is N d - p .- To O H W I- C 0 w� u to O ¢ 0 s-] - W �Z 0 — 0 u = m Z J m b '0 c. v=- • a „ E d _ a 0 To to N a > -� E E c _ >. Cv.i 1"1 O C CWP O m C •U C N d h - co W V• W 0 I c G .d C V c - rW r- rn -o H o r w r - d c Cl) .i..i Z �s • _ _ , z O E0 Z 0 G. O C d 6 I W O GA W C - C L E p C 0 0 > r^► a a a p y co .Nog dW � 2c-$ 0 0 0 o y W E Cl) U x028 5 = c C a; _ = in — C W Z 0 O >0 6K 6C 0. ( — O Q 2= I C) LiJ'� w0 Z<! •0 "CS C. O LIJ ( W C, R O 14 Z C - C N - f . p O R r w r. J NL Z .c Ea C -4-- } = 0 O y.. N Z G C cEoi Elio C? 9 th L'II co - Cool c..7a d a s : d c' ea ` U Y. R imiI C V 4 r v I I I p r:i- H r Q> U 0 C I ! L L R o) LI . I• I I C . CGC•. Z 0 t..) II II L I O G C o I _O E c O ° I o > c c� C. • -I - s- I j E of I . or)r Q w t c sn bI w . o c cI z o I c c I E NC r+'� 0 .I - U I N c >_ .rz I D L y cm h `pr yr O G -I z N CsJ Q I •I E E a A E r N {C,'. _ _ : c c c � V ! _ O T' ++ C Q O • C. La. C Z �M W a. G I. E L v •≤ <' C i. Q I t V) I i .- I- Z .e H C:.c C i Job No. 22 ,860 Structure Weld County Disposal • Date Inspected 9/14/81 4 of 4 Daily Report No. 23 4 of 4 Foctinc Location Death of Excavation • Soil Type Water 'Condlticrs Reconnenation. The SW corner had by this time dried enough to net proper compaction. They then moved to last remaining section and began mixing Bentonite and soil . By Tim McCann Field Encinecr Cher. and Associates , Inc. Jeffrey T. Johnson By: D.H .A. CHEN AND ASSOCIATES Consulting Enginoon _ Soil and Foundation E[pin»riro _M= _w � ate— v�sam isaaanlaigaaaaaallaaill•aanada.aam�_ __•� �� a. amalaaaamaimaaanamaaamm. ....... as SONS — r r _— ,. 3 1 E �__— �— :��_r - Ili ie aaaaao -. I ______alainSla _______- __- g amana inNieaMISalaSSOD le _ �_�.a_a�Sialma_ _�—HMO �P N ��S�M •ammilaaalaamMalainSa— __— a 1 UM �. �• W��S s ��aa awes _ M ��__ . � �� P.. WaWsW e...�MM MS..i.am.flan... s w M m. sN a In In I.N ■ M •S SO a' >r 'Si rr, . SI OF PIS I L[ IS WLLI OM i i. •nro•OS�SK[O as".""41 A 'ILT I. "Illina �u—`Ila.a�S4i:L. a.i�t•.:._� — GRADATION TEST RESULTS r` /O SAND / SILT AND CLAY 46 % • % / LIQUID LIMIT 7� 33 ICI Tv INDEX 18 7. MOISTURE — PERCENT Or DRY WE ISN'T • R a to ts M I.0 jroes*u•[ -o.. o[a�*. turns .,, ...»..........' i _... 1D9.� • . ( ......K.mo,t....<. I t5. i Il0 !i F r ill0 ' t . — a S /� a — y I i . O 100 i 1 or O t *0 + 1 • l so I COMPACTION TEST RESULTS — COMPACTION TEST PROCEDURE ASTM D698-78 Method A SAMPLE or Ven Clayey Sand . , r..... N1.' ` `-__ or PT` — f a S c col O ,l C4, 11=ige[35 L� U O p co .�1 W U w D�I 0,� C7 C s. 0 d _ - _ - > wzro O o E >C +0 N — d0 CO U Cr �- i 0.. 7 a0O W d) — ? .W J u) z N d a L. � oNL? < a Li ' CD itl d C N > N V to C C)O fL G a ..0 O r\ 01 60 L!1 O CV i cs coH w 2 O f 01 CO 01 01 in C C C) — N Z 0 i+ tv 00 N c 0 7 N e 7 N O C a. O O ^ O d N a LL U �. 0 cc U -0 -0 - C Z M 0 N M %0 0 N .0 u 0 JW 0 4 yZ.- a1 a at E o < to 00 ^ N ^ N a CD O < O 0 N N — C 0 N 2 C v C . C) > O L11 o f� Q +� E E Of O _ -10 cN 01 Lf1 S 01 I.D. C IC ) oz3 0 0 0 N. 0 0 0 C L✓) c 01 d 0 L)0 a C9 O 0 C C o, 3 i�'i, W L O CA W `c - c c E . 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C" ( j%2 ( 72 N § a \ .0 0 tea.Ec § 1 , $ 4- e z § 4- 3 -52/ c — CHEN AND ASSOCIATES Consulting Engineers — Soil and Foundation Engineering NrDR%rR R ITII$ !1[vt ►fISLTSIt RR r o f tTtNDtf10 [ENU1p I Kin NYY[ OtEYmp — EIZI pf Se •Ht Ida Tote •f0••0•it •R Po •• \' \' .R" I riff Rim — 1 " ' ' ' n E---- j. a t 4 - 4 • _ I I i - T 1 I• rk M } 1 j z' # j 1 1 2 r T a4- 1 r. ; 1 t ■— ,..--,--j---, . T I p S1 , I t Y I } 1 1 t j ' - 2-; p 1 ' � p 1 t } n j l. .et .L A SID ISO M Ifs an M Jr ale me ..1t tIEH •W LW It' MI Ru en it IN DI OF r•RTIGu IN SILOS gfT I CI TO MlT INS-RUnO I— rift I;•WIIION 1 Call!] ell[EE kY.-CONne i"nu' GRADATION TEST c RESULTS ._ / /t SAND It SILT AND CLAY 55 5 �/ /t LIQUID LIMIT 26 tie t PLASTICITY INDEX % >_ MOISTURE -- PERCENT or DRY WEIGHT 5 10 15 20 ITC i I--...---Th 00,171.4•E -DST curt[! _.•'~_•--.•,�•_DENH*• 1---4 119.0— ..... 11 . 7 I 1 . 1 I •u.,.. �..a.J 130 1 ,_4.—.--,—.----0 t j V ire • N .r • t I R IN 4 — O , 100 >• 4 ■ O ' i — , 0 t — 00 COMPACTION TEST RESULTS — COMPACTION TEST PROCEDURE ASTM D698-78 Method A SAMPLE Or Sandy Clay . - ., rro, ,90' W. & 100 ' N. of DEPT. —. . CHEN AND ASSOCIATES Consulting Engineers — Soil and Foundation Engineering wrpRoiSk Ell •tI•VTf if SIEVE ANALYSISGL L=t •L tila i%m n: u t tnw.It at•t►E I GLEAN t•u.e• o.crF \r ►•r •r or Ir eon 'so o eole •r A so ,- \- i\' r rI — I i 3 ♦ i — r - i 4 ` • — -i 1 z ! ? I 1 Y i le I 1 1 • ± , > ? si I 1 T I i = w i i r1 _ + i r r r 1 f - I 1 1 To• 1 1 i i a— s I 1 r3 •••• 2 r } 1 2 r t_ I s . ,t• I MN O Ss 00 al AN w r...cm 110 • s► no no a a' IA► •'itta•e — IL tlArt TE• Or ►MIIMLE IN •ILL CLAY I CI YO SILT I -hal eci cOtrLtt — GRADATION TEST RESULTS /► SAND To SILT AND CLAY 43 % LIQUID LIMIT 38 % PLASTICITY INDEX 20 /► MOISTURE — PERCENT Or DRY WEIGHT S PO Is 20 is b on) 1 rolslu•t -On OtoSi . cunt' I ........._.... ,.... — ...._....... ..... 1 10.0 13.7 r 1 f 2 Ito u _ • t 4 4 � i - 1 • — ilo r G7 r • , z • — Q i00 • O 1 _.L.._ - 10 �J I 0 I COMPACTION TEST RESULTS - COMPACTION TEST PROCEDURE ASTM D698-78 Method A SAMPLE or Very Clayey Sand FROM 14D' S. & 1001 E. of DEPTI+ -. - ` t, i '_,• chen and associates, inc. CONSULTING ENGINEERS `•,(co. SOIL I FOUNDATION ENGINEERING 96 SOUTH ZUNI STREET • DENVER, COLORADO 80223 • 303/7447105 September 21 , 1981 Subject: Construction Observation and Testing, Pond D, Weld County Disposal, County Roads 12 & 35, Weld County, Colorado Job No. 22,860 Weld County Disposal PO Box 304 Ft. Lupton CO 80621 Gentlemen: Chen and Associates, Inc. conducted construction observation and testing on Pond D on a full-tine basis from August 18 through September 15, 1981 . Pond D has plan dimensions on the order of 525' x 500' with a maximum embankment height of 10 feet. At the tine of our initial observations at the site, the west embankment had been constructed and approximately 3 to 4 feet of fill placed over the majority of the pond bottom. The north embankment of the new pond consisted of the south embankment of an adjacent pond. All fill that was placed in the pond bottom was removed as well as an old mud pit that had been covered up. The area was dewatered to allow new fill placement in the pond bottom. Fill placement in the pond bottom was placed in lifts compacted to at least 95% standard Proctor density near optimum moisture content. A nominal key trench was constructed beneath both the south and east embankments. Fill placed in the south and east embankments was compacted and controlled to 95% standard Proctor density. A total of 331 tests were taken with our results reported in 24 daily reports. A soil lining was constructed on the pond bottom and sides by mixing uaiu,ercial bentonite with the natural silty sands. A total of 1 ,110.6 tons of bentonite were delivered to the job site. The bentonite was disced into the upper soils and compacted to at least 95% standard Proctor density. The thickness of the liner ranged from 7.75 to 8.25 inches. After caupletion of the bentonite-sand liner, a OFFICES: COLORADO SPRINGS, COLORADO / GLENWOOD SPRINGS, COLORADO / CASPER, WYOMING Weld County Disposal September 21 , 1981 Page 2 minimum 6 inch soil cover was placed above the liner to protect it fran shrinkage and cracking. If we can provide any additional information, please call. Sincerely, CHEN AND ASSOCIATES, INC. By David H. Adams, II, P.E. DHA:fs chen and associates, inc. E; CONSULTING ENGINEERS r `'•• ` SOILSFOUNDATION 96 S. ZUNI • DENVER, COLORADO 80223 • 303/716-7105 ENGINEERING INVOICE FOR PROFESSIONAL SERVICES To: Weld County Disposal August 31, 1981 P.O. Box 304 Fort Lupton, Colorado 80621 Attn: Mr. Daryl McKnight Job No. 22,860 Invoice No. 9519 Compaction Testing and Laboratory Testing. Weld County Disposal Pond D, County Roads 12 and 35. Fort Lupton, Colorado. 8/12/81 Field Trip + 3 Hrs. @ 24.00/Hr. $ 132.00 3 Steve Analysis (-200 Only) 27.00 3 ltterburg Limits 66.00 3 standard Proctors 150.00 Senior Project Engineer 34 Hrs. @ 50.00/Hr. 175.00 Project Engineer 1 Hr. @ 35.06/Hr. 35.00 8/18/81 Field Engineer 9 Hrs. @ 24.00/Hr. 216.00 Vehicle Charge 20.00 8/19/81 Field Engineer 10 Hrs. @ 24.00/Hr. 240.00 Field Engineer 21 Hrs. Overtime @ 26.00/Hr. 65.00 Vehicle Charge 20.00 8/20/81 Field Engineer 10 Hrs. @ 24.00/Hr. 240.00 Field Engineer 1 Hr. Overtime .@ 26.00/Hr. 26.00 Vehicle Charge 20.00 8/21/81 Field Engineer 10 Hrs. @ 24.001Hr. 240.00 Vehicle Charge 20.00 8/24/81 Field Engineer 10 Hrs. @ 24.00/Hr. 240.00 Vehicle Charge 20.00 8/25/81 Field Engineer 10 Hrs. @ 24.00/Hr. 240.00 Vehicle Charge _ 20.00 Mileage 595 Miles @ .30/Ml. 178.50 TOTAL $ 2390.50 OFFICES: COLORADO SPRINGS • GLENWOOD SPRINGS, COLORADO • CASPER,WYOMING • SALT LAKE CITY,UTAH chen and associates, inc.84 1 CONSULTING ENGINEERS • ` _ S01ItFOUNDATION 96 S. ZUNI • DENVER, COLORADO 90223 • 303/110-7105 ENGINEERING INVOICE FOR PROFESSIONAL SERVICES To: Weld County Disposal September 30, 1981 P.O. Box 304 Fort Lupton, Colorado 80621 Attn: Mr. Daryl McKnight Job No. 22,860 Invoice No. 9762 Compaction Testing and Laboratory Testing, Weld County Disposal Pond 0, County Roads 12 and 35, Fort Lupton, Colorado. D/26/81 Field Engineer 8 Hrs. @ 24.00/Hr. $ 192.00 Vehicle Charge 20.00 8/27/81 Field Engineer 10 Hrs. @ 24.06/Hr. 240.00 Field Engineer 1 Hr. Overtime )@ 26.00/Hr. 26.00 Vehicle Charge 20.00 8/28/81 Field Engineer 10 Hrs. @ 24.00/Hr. 240.00 Field Engineer 1 Hr. Overtime @ 26.00/Hr. 26.00 Vehicle Charge 20.00 8/31/81 Field Engineer 10 Hrs. @ 24.00/Hr. 240.00 Vehicle Charge 20.00 9/1/81 Field Engineer 10 Hrs. @ 24.00/Hr. 240.00 Field Engineer 1 Hr. Overtime @ 26.00/Hr. 26.00 Vehicle Charge 20.00 9/2/81 Field Engineer 10 Hrs. @ 24.00/Hr. 240.00 Field Engineer 1 Hr. Overtime .@ 26.00/Hr. 26.00 Vehicle Charge 20.00 9/3/81 Field Engineer 10 Hrs. @ 24.00/Hr. 240.00 Field Engineer 3 Hrs. Overtime @ 26.00/Hr. 52.00 Vehicle Charge 20.00 9/4/81 Field Engineer 10 Hrs. @ 24.00/Hr. 240.00 Field Engineer 1 Hr. Overtime @ 26.00/Hr. 26.00 Vehicle Charge _ 20.00 1 Sieve Analysts (-200 Only) . 9.00 _ 1 Atterberg Limits _ 22.00 1 standard Proctor 50.00 9/5/81 Field Trip + 2 Hrs. @ 24.00/Hr. 108.00 9/8/81 Field Engineer 10 Hrs. @ 24.00/Hr. 240.00 Vehicle Charge 20.00 (Continued) OFFICES: COLORADO SPRINGS • GLENWOOD SPRINGS, COLORADO • CASPER,WYOMING • SALT LAKE CITY, UTAH 8 Chen and associates, inc. _ CONSULTING ENGINEERS Stitt FOUNDATION 88 5. ZUNI • DENVER, COLORADO 80223 • 303/744.7105 ENGINEERING * INVOICE FOR PROFESSIONAL SERVICES To: Weld County Disposal September 30, 1981 P.O. Box 304 Fort Lupton, Colorado 80621 Attn: Mr. Daryl McKnight Job No. 22,860 Invoice No. 9762 (Continued from Page One) 9/9/81 Field Engineer 10 Hrs. ! 24.00/Hr. $ 240.00 Vehicle Charge 20.00 9/10/81 Field Engineer 10 Hrs. P 24.00/Hr. 240.00 Vehicle Charge 20.00 9/11/81 Field Engineer 10 Hrs. 2 24,00/Hr. 240.00 Vehicle Charge 20.00 1 Sieve Analysis (-200 Only) • 9.00 1 Atterberg Limits 22.00 1 standard Proctor 50.00 9/12/81 Field Engineer 8 Hrs. 9 24.00/Hr. 192.00 Vehicle Charge 20.00 9/13/81 Field Trip t 2 Hrs. 0 24.00/Hr. 108.00 9/14/81 Field Engineer 10 Hrs. P 24.00/Hr. 240.00 Vehicle Charge 20.00 1 Sieve Analysis (-200 Only) 9.00 1 Atterberg Limits 22.00 1 standard Proctor 50.00 9/15/81 Field Engineer 9 Hrs. 9 24.00/Hr. 216.00 Vehicle Charge 20.00 2 Sieve Analysis (-zoo Only) . 18.00 2 Atterberg Limits _ 44.00 2 standard Proctors 100.00 Senior Proje-t Engineer 14 Hrs. P 50.00/Hr. 75.00 Mileage 1445 Miles P .30/Mi . . 433.50 TOTAL $ 5091.50 OFFICES: COLORADO SPRINGS • GLENWOOD SPRINGS, COLORADO • CASPER,WYOMING • SALT LAKE CITY, UTAH APPENDIX I Information on Surface Aerators — -GROUNDWATER TECHNOLOGY AI - Q- LQ R 7�. .e � • • • .•„ I } .r leti��"_7 s--- 4. a THE ULTIMATE IN FLOATING - AERATORS SINCE 1967 — 3 nor i Fee - At a glance'. _ Diffuser — - \ Support Tube t Motor mount/diffuser is suitable Flotation — for use in salt water or fresh water. �` \ Molded From polystyrene ,� non-hygroscopic closed cell I foam, Propeller N. — Fiberglass reinforced high �^ speed weediess design. �? ir? Scientifically developed 4:Y — for its specific use. ■ I! Wt Stator UL d CSA recognized / The Famous "FRANKLIN" — Sr,: ' Submersible Motor, water-cooled, water-lubricated, totally enclosed - and lightning protected. Stainless — Energy Saver steel construction prevents corrosion. Contains automatic thermal overloud protection. Easily installed by one person. Virtually maintenance free. (• How it works . . . Air-O-Lotor°Corporation uses a Fronldin° Electric submersible motor,which is water-cooled and — water-lubricated, to turn a scientifically designed, foul resistant propeller, at 3450 rpm. Pumpage, Aeration and mix The rapidly revolving propeller pumps c large column of water to c diffuser cone. When the column of water strikes the diffuser, c shearing effect occurs, breaking the column into micro droplets and exposing more water droplet surface area to the atmosphere. As the water returns to the "porru body", each droplet drags an additional °moon, of water with it, causing an "induced flow" effect, which in essence increases the surface area, exposing more water to the atmosphere. — Another event that occurs simutioneousiy is the cooling that takes place. This cooler water tenth to sink, since it is heavier and denser, displocing wormer water that is trying to rise. With pumpage and thermal exchange occurring, pond turnover is erect- and continual to prevent stratification. — How much? The question is always asked, 'How much - aeration do I need?" Al! ponds and situat:ons are _ diffe-ent, but as a general rule, approximately ,;;;,,:';';:::-......S.,-* _c' , one-krt per r - '"-rce acre is sufficient, �,� r'� w— X3,.4 *-, ,. i1� depending on the Biochemical Oxygen Denond (SOD' ��""'—, f •,•,.‘ v,; for c lake or pond. '''e�"� .Uwj"` i y ... — fit, - 'it +v �/ \4 1 � `r i , Constant Aeration ard generation "a r , ' 'rf" o ` `, i ' with repeated Induced flow t`.v.�" '+ 5''c'`' S- f r_' Endless Destretification Aft--41-47-- -.7t.� - -- r tF h µ„o.,, Etfieleney is Unsurpassed _ ;03-,-...T. 4 �� hc:- _-y2 NUN , 4 ' - ' • Advantages .. . Look Inside A Franklin 4"Super Stainless Motor ® Rugged, stainless steel Franklin Electric submersible Stoinless Steel Shah 2-or 3-Wire motor, engineered for submergence, water-cooled, 1L • Motor leoon 3 9Stainless Stec: 7i water-lubricoted. No oil to contaminate or rob mounting Sruds .. .f Remtotbk energy. Spline P•tr•cta . v✓ate^bloc and Send Slinger 1 ;y :cad Assembly — O No long shafts to bend or become out of balance. 2 5/8" diameter, 1-1/2' long motor shaft, in Filter Check Yoke .a 2-Wre Bice NEMA Mounting a_ ire Stoning S'witc^. 9 No seals or bearings to maintain,. Dimensions �,_ { ]�►9a_� — o0 High speed, foul resistant, fiberglass reinforced lip-Type Shah Seal r` 1 v'°'cr:berm;e 1 Gorton Eeon❑2 propeller. High shear water spraying action. No lazy suilt•In Lightning / Jse ` System spray or bubbles. Arrestors •�j =1 — 9 One piece, square notation for stability. No •hiermlrce4 Sealed L j Dynomk-14 Stator Wincirpt with balanced Rota- eacilla)1on can occur as with round floats. Anli•Trod Resin System i =. J Exclusive 'Energy Saver' capacitor control box.. Sic-- t� 1/2 hp, moves '350 gpm. 1-hp. moves 11475 gpm. Stainless feel- � ! Kingsbury-Typo rusb5 wing m 1/2-hp. has oxygen transfer rote of 2.2 lbs. per i — hp. hour. 1-hp. has oxygen transfer rote of•4.0 lbs. 3. Prenure�Emawl zing Cost End Bells , 1 ID,s er+bl per hp. hour. .ei y Ma entp reel by Stainless Steel\ �� ■ t f T•nrteaWCn eng;nee,Ml dlvsia, i — a Baud en t perFimK a Auburn'University,Auburn.Al il Cover Mil 41011. —3 Models Available . , . Optional Equipment . . - Model AF-55 Polyethylene Flotation Styrene Foam Fillea -- U-vot n/2-hp,Itb-v Cr 230-v)7.5-Amps 3.A-Amps — Skipping Weighs Mode!+cAP•55 with SC' cord(s d) 45 6. Viljaat - . Model'AF-55 with 100 cord 30 . ° -- Model r,AF-55 with 130'cord 36 6. No it mo:or3 :no 50'core Furnished unless otherwise speciiled on Order, Model SG-5ID tl-hp.230-v OWN)0.0-Amps Propeller Guard Snipping Welphn — Motel tSC•51D with SC'cord Iod) 44 .nos. ��o- Model a SC•510 with 1C0'cord 55 les. ass s '�� `node CSC-51C wilt, 150'cord ��=��Se�- - 62 log. 1 Mole.50'cord Famished onle!t otnevue spec;liod en order. �� -e Olit.le ale;ip Model 07CPC5DX5 Propeller suord 4 e- 1 Model --` , - Model Y?OFA3! Polyethylene Moidsd Float TS lb. Wcrronty will be extended Io three I31..yea's (All prices are FOR Kansas City,Missouri) (on the motor ONLY;, IF equipment is l e d end — For pricing and orders call toil-tree used in conjunction with a e7OPG9X5 Prropei erGuard. 800-821-3177 fl AUG- 2-dG MON. .- c2 J I Typical Mooring DRONZE SNAP Allow O y CONTROL ROE 0ptoximote tit oe .� feet of mooring rope per i n, �` foot of water depth tc a'law �//�j�j for water It+el fluctuct:on. Tying unit to the shore : �7 olso acceptable ;f Yisibie PROP GUARD POWER tORD mooring ropes are not IMa ANCHOR ROPE �' objectionable. SUPPLIED Iv OTHERS Recomm.nd.d Elr:iritol Panor Supply Loy:u' a,.esy imgllorwn and rtmo+:I o •ouipm.m S-V CENENT BLOCK D' AIR•O-{,aTOR CONTROL BOX POWER DULLOINC r--", POST ,—":"_____ Typical Electrical Air-O-Lotar equipment is manufactured DIRECT BURIAL CABLE OUTLET - either to UL, CM or NEMA standards. TO OUTLET -.--- Ali Air-O•Lotor 1/2 hp and 1hp units coo TREATED 0•Y O.OR POWER CABLE TO ore designed to plug into on outlet. 4'K e•POST FDA EACH AIR O•LATOR UNIT AIR•D-UTORUNI7 however, conduit wiring is °ermined. GROUND FAULT PROTECTION c STRONGLY suggested on any _�o PONOOR LAKE electrical device. AIa o•u7oauN1T OUltialiad ��*7�7�771I* I . 1461 I 11 Ouentum Roofing Oucriur. I!Fiooting Enterprise Aspiroling Enterprise tl Aspiratirsc. Aerotor,ufilizirsry c erator.utilizing on A.rator,(Floating or Mosr Aermor, (FlootmEE or Most 3403-rpm Prot-awn Al gp3•rpm Re:ience Moumdj with fronkl:n totpun:ed)with Rillonct major cabmen blr mole? Etc:fric submersiblemolar submrsitic mom. ' -..tl - ire+ . e �i�+ii 1 an eon•I a . ,▪ -, „ `'—`- uRa-Lu:R inter-Mix sbbw spied. ry+e•t.'dx voricble Fonl'n-Arc.nooitns !a -Awoy ice•me)te•, per reduced,high Speed,high velum., Dec:refire Fc,nrom maintains!pain carer ir, volume etearic mixer hyoroulic mixer improve:werer quol;y ponds and iacµ,aroux with aesthetics cocks:nd bc_-f: in frresinp tempo-Wires AIR e LATOR` E100-0t Fano,Konsas City,Missouri 64131 Oliice Fnonc 800.621.3177 e,216.363-42[2 FAX El6-363.2322 ALt- 2-22 N3N :4:21; AERATOR SPECIFICATIONS - MODEL #SC-51 1. GENERAL 1.1 The following specifications direct attention to certain required features of the design package, but do not purport to cover all details entering into the design, construction, and/cr installation of the equipment. 1,2 Furnish floating aerators. Each aerator shall consist of a motor, a direct drive propeller driven at a constant speed, and an integral float. 2. PERFORMANCE _ , 2.1 Each aerator shall be capable of high oxygen transfer rate at a minimum rate of 4.5 pounds per motor brake horsepower hour. 2.2 Each aerator shall be capable of a direct pumpage rate of 1475 gpm. 3. AERATOR DRIVE MOTOR 9.1 The motor shall deliver one (1) brake horsepower hour at 3,450 rpm and shall be wired for 230 volts, 4O cycle, 1-phase service. 3.2 The motor shall be totally enclosed, water-cooled, water-lubricated and rated for chemical duty. 3.3 The motor shall, in all cases, equal or exceed standard NEMA specifications. 3.4 The motor winding shall be non-hygroscopic. 3.5 Basic insulation shall equal or exceed NEMA class H . 3.8 A minimum service factor of 1.15 shall be furnished . 3.7 A name plate shell be provided with each motor and shall be securely fastened thereto. The voltage, motor speed, basic insulation class, amperage, service factor, serial number, and manufacturer's name and address shall be stamped or otherwise permanently affixed . 3.8 MOTOR SHAFT 3.6.1 Each motor shall have a one-piece shaft, continuous from -' the bottom bearing to the aerator's propeller. 3.6 .2 The motor shaft shall be manufactured from type 303 stainless steel. 3,6.3 The motor shaft shall be machined to a tolerance of plus or minus .002 T .I.R. from lower bearing to upper end of the motor shaft. '-ON AERATOR SPECIFICATIONS - Model *SC-51 - Page 3 3.8.4 The motor shaft shall meausre 5/8" in diameter at the top bearing. 3,9 MOTOR BEARINGS 3 .9.1 Bearings shall be water-lubricated. No ball bearings shall be used. 3.9.2 The top and bottom motor bearings shall be radial sleeve type bearings. 3.9.3 The lower thrust bearing shall be a Kingsbury self-aligning, self-equalizing, water-lubricated thrust bearing of not less than 400 pounds capacity. 3.10 MOTOR TERMINAL 3.10.1 The motor terminal shall be of the removable type, submersible connector construction, field replace- able without disturbing the seal of the stator. 4. DIFFUSER 4,1 The diffuser shall be manufactured from spherodiel graphite iron and shall be epoxy coated. • 4.2 The design of the diffuser head shell be such that the liquid spray shall be discharged et an angle to the motor shaft and over a 360° pattern in the horizontal plane. 5. MOUNTING HARDWARE 5.1 Mounting fasteners shall be stainless steel. 5.2 Motor mounting hardware will be designed in such a way as to furnish maximum rigidity and stability with minimum flow interfer- ence. 6. FLOTATION 6.1 The flotation unit shall be manufactured from closed, non-hygro- scopic, pressure molded polystyrene beads. 6.2 The flotation shall be capable of supporting not less than two (2) times the weight of the unit. 7. PROPELLER 7.1 The propeller shall be precision injection molded FRP and shall be specifically designed for the application intended. AU 2-a8 SON 14:25 AERATOR SPECIFICATIONS - Model fSC-51 - Page 3 7.2 The propeller shall he streamlined to prevent cavitation and reduce drug and shall have trailback blades to assure weedless, non-fouling operation. 7.3 The propeller shall be hydraulically balanced to assure equalization of load under full load operation. 7.9 The propeller shall be dynamically balanced to within 5 gram- centimeters. r 8. VIBRATION • 8.1 The propeller and motor rotor unit shall be dynamically balanced to a vibration level not to exceed .70 mils while hydraulically submerged. 9. STABILITY 9.1 The unit shall be designed so that 95% of the weight of the unit is below the top level of the float. 9.2 The aerator shall be unconditionally guaranteed not to capsize due to ice or turbulence. 10. ELECTRICAL SERVICE CABLE 10.1 Each unit shall be furnished with feet of AWG #14/4 conductor, UL approved, moisture resistant electrical cable, type SJTOW or neoprene, depending on water quality. 10.2 The aerator manufacturer shall furnish the cable with one (1) end sealed into the motor and shall be responsible for the water- tightness of this seal. Hello