The URL can be used to link to this page

Home My WebLink About3479; PALOMAR AIRPORT 12" WATER PIPELINE; AS-GRADED COMPACTION REPORT; 2004-09-161828 City of Carlsbad •iwiL' September 16, 2004 1635 Faraday Avenue Contract No. 77298 Carlsbad, CA 92008-7314 Attention: Mr. William Lopez Subject: AS-GRADED COMPACTION REPORT Project: Palomar Airport Road 12 inch Water Pipeline Yarrow Drive Carlsbad, California Dear Mr. Lopez: ' ISEP 2 0 2004 In accordance with your request, Testing Engineers - U.S. Labs. (TE-USL) has conducted grading observation and compaction testing during backfill operations at the above referenced project. Services described herein were provided by TE-USL from August 9, 2004 to September 8, 2004. As indicated in our field inspection reports, a representative of this office observed the placement of bedding sand, on-site fill soils, aggregate base, as well as A.C. within the trenches. The approximate test locations are presented on the Plot Plan in Appendix A. Summaries of laboratory and field compaction test results are provided on Appendix B, Tables 1 and 2, respectively. Results of our field observations and density testing indicate that the fill placed within the trench backfill areas meet the minimum relative compaction requirements of 90% or 95% per test method ASTM D-1557 at the locations tested, as applicable. It should be noted that the precision of the field and laboratory maximum dry density test results are subject to variation inherent with testing procedures and heterogeneous materials characteristics. Quantitative values of testing precision have been documented by the American Society of Testing and Materials. Results indicate the accuracy of the ASTM D-1557 test to be plus or minus 4 percent of the mean density. Based on this information, relative compaction results should be interpreted as approximate values subject to variations in lateral and vertical directions. Survey lines and elevations relative to grade modifications, final design grades, locations of various elements, etc., were established by others. Field monitoring services provided by this office, consisting of visual observation of compaction operations and random in-place density tests, are intended as an assistance to the owner/client in monitoring apparent reasonable compliance with the project earthwork specifications. The presence of our field representative during the work progress did not involve any direct supervision of the contractor/subcontractor. Technical advice and suggestions were provided upon request based upon the results of the tests and observations. In any case, no warranty or responsibility for the contractor's performance is intended or implied. Testing Engineers - U.S. Laboratories 7895 Convoy Court, Suite 18 • San Diego, California 92111 • (858) 715-5800 • Fax: (858) 715-5810 Offices Nationwide / 4 TAT 4, 4 '4 _•_4__ - -/t APPENDIX A, FIQITRES ' . 4, V 4 4, 4 4 5 4 4 - S 4. 4 4 4 • '4RADAy s.- -A' ij -•'. 'A A ID >imei_/ -, / CORTE IA P1K CT LN LAS 2 4 ___ ao• s °REE i ----i,; 4 3JRDNEIJ' .> Cl S iI 1 L) 5k p 1 I' L Aç RD c 23 RD 22 scaslag EL CAMINO ALL" 4 I 57;iSKAU OWN All AV —\ I - JibZ4 :T -- - I ' I tfr' -- -: c' 46 WD A -vUs CT &Q O)lMING8 Ry R Vil ERL CT &4TE1 G4TE rr ' L1NG -k -11A - - i-- - -- Reference: 2004 Thomas Guide 0 1000 2000 4000 ft SCALE 1:24000 1 "=2000' NOTE: This figure may contain areas of color. TE-U.S. Labs cannot be responsible for any subsequent misinterpretation of the information result- ing from black and white reproductions of this figure. Testing Engineers - U.S. Labs I 7895 Convoy Court, Suite 18 I I San Diego, CA 92111 I Title: I Site Location I I Project: Palomar Airport12inchWaterPipeline 1 Drwn: IContract No: I I MM 77298 I Date: I September, 2004 Figure No: I 1 -- ---- ........... . ...... • . - • .428.5LF±.12 .PVCWAlERPIPE.CLAS 150 _.. • • 124.8.L 12"4 GACE. WELDED .S WATERPIPE.CML.JW&: .............. - . - . . •• . -• ____ 325 c ... .. ....... EXST AC.P4T AT CENTERLINE . .... PIPE .. - - ••.•.••._.... TOP OF ..... ..- .. .....•....• . —p - 325 (TYP)_\ PIPE(rrP)— . .. . . .. . . .tr) . - . .............PIPE 315 ... ..,.. , - ..... .............•.. . - . ...........C.J.CENTERL/NEb 0 EXIS71NG GRO ID AT PIPE .- 315 r -i- - - - - - - - - / - - - - - - •••• - .. . - - .• •• .• ... . -n L1 CLR S= -4182-I—\ 305 - - ___._.__ - - - -- - 305 '.- . . . ••. 1'cLRJ MIN ..:...; / I \ ..... - --- - ..................... - -00 -..-.---.----..--. 295 ......-In - ...- ................_•/ . ---------- . ....295 .. .• .. CS . ...\ k... . .s=-a44z - . 285 •• ••• . BLdWO .-•-'---- 5 ii.............:..ii.ii: . ........... III1I:L.I..... • :11. ..'I.........I.•I.. :1:1 ._i-I•'_ V or 275 T.TTII..TT..•iI ......:--I-T:... IV ... .........- WATER MA • .•• •• ............_. .................. .• .... 275 .- ......• .• • . ................ROFlif:.7" ........................:.. . ...........-- - .•.- .... ........- .HORZ. vERT;r=16' 1"=40' . . - • ....- ............- _ .................- ...-.•• ...._•_•••_ ................---- ........................_____ .... 1+00 2+00 3+00 4+00 5QQ - . 6+00 191Z ti + 03 /1CS 0I('4 N Q. "K In 6 I C)IQ \ V"' C14 I • . WATER MAIN - DEDICATED TO CARLSBAD INS 7L 72" pvc i-20' WA TER EASEMENT Ii -7---------. EXST 127, PVC . S DOC NO. 2001-O8O4J9O RECORD E \ MUNICIPAL WATER 0/S7R/CT II- 01 4" t i\\\ I PER CM WD 8 18 \ -JOB 19 0 rn \_ ....... NO. I - - 17 1 22 13 2 S1O 44 E 9 3 14 4 01 58 15 0 6 5 11 16 7 , ' / 6 12 9 I 2 7 . S16 38 13 637± \30 REMOVE AC 'CPLG, 71 12" FLCxPJ EXST8 PVC PER CMKV JOB ,..9-21O ," i \ \:I1 . 'i / PLAN 12 PVC WATER MAIN Reference: Base Map "Palomar Airport 12" Water Pipeline", City of Carlsbad Engineering Dept., Project No. 3479-1, CMWD 99-104, Drawing No. 389-07, Sheet 2, dated 9-15-03. Testing Engineers - U.S. Labs 7895 Convoy Court, Suite 18 San Diego, CA 92111 Title:. Plot Plan Project: Palomar Airport Road - 12" Water Pipeline Drwn: • Contract No:CS 77298 Date: September, 2004 Figure No. 2 Legend ® Approximate Compaction Test Location 0 20 40 60 8O ft. SCALE (Feet) '1 4 I . - • - •. • • . • .,• •• .. . . • . -•. / • • • -- :. - 4 .. 5- 5- -. 4 TABLE1 LABORATORY TEST RESULTS (ASTM-D-1557) 4 4 SAMPLE # DESCRWI1ON -MAXIMUM DRY OPTIMUM MOISTURE DENSITy(I4J) CONTENT (%) 1 --site:-CL 415 0 15 0 2 %" Class II Base 14-43 '515 . . .-,.,.- 3 AR4000Y4"AC ,. 1465 . - 4 AR4000 3/4"AC 1449 - 44 161% 150% 1031 1150, 900/6 90% Conform 1'5'.8% 15.0%. 103.8 115 .0,,, 90% 90.%,,-Conform 15.6% 15 0% 106.9 115.0' 92% 90% Conform 15.8%' 15.0%, 103.5 .115.0 900% 90% Conform 161% 150% 1036 1150 90% 90% Conform 153% 150% 101 1 1150 88% 90% Nonconform 154% 150% 1042 1150 91% 90% Conform 15.26/o .15,.'0% 103.5 115.0-900/6.,.-90% Conform 14.9% 15.0% 109.2' 115.0 956/6 95% Conform 150% 150% 1105 1150 96% 95% Conform 15 9% 15 0% 107 7 115 0 94% 95% Nonconform 159% 150% 1092 1150 95% 95% Conform 15 5% 15 0% 105.7 115.01 950/6 .95%-'Conform 16.40/6'.'150% 1088 1150 95% 95% Conform 5 3% &5% 138.0' 144 5 96% 95% Conform 53% 55% 1336 1445 92%,.95% Nonconform 5 3% 5 5% 137 0 144 5 95% 95% Conform 5.10/6 . ••5.5% 136.6 44.5 Conform . " 5.5% 5.5% 133.'0 144.5 92% 950/6 Nonconform 5.5% 5.5% 137.5 144.5 95% 95% Conform - - 140.4 ' 146.5 • , 96% 95% Conform.. • - - 141.0' 146.5 96% %, Conform - - 1407 1465 96% 95% Conform Test Sample Test I Moisture Dry Density. (pcf) I Relative Compaction Conform . Test Location . # Date S Field Optimum Field Maximum Obtained Required Non-Conform 1 1 8/9/2004 Sta. 1+30, -2' below existing AC 2 1 8/11/2004 Sta 1+90 -2' below top of AC 3 1 . 8/11/2004 Sta. 2+35, -2' bèlbwtop of AC 4 1 8/11/2004 Sta 2+90 -2' below top of AC 5 1 8/12/2004 Sta 3+50 -2' below top of AC 6 1 8/13/2604 'Sta., 4+20, -2' below top0f AC 6a .. 1 8/13/2004 Retest of #6. 7 1 8/13/2004 Sta. 4+9,.?' below top of AC 8 1 .. 8/16/2004 Sta. 1+50at SG 9 1 8/16/2004 Sta. 2+508t SO 10 1 8/16/2004. Sta. 3+60-at SG 10a I 8/16/2004 Retest àf' #10 11 V1 . 8/16/2004 Sta. 4+50 atSG 12 1 8/16/2004 Sta 5+20 at SG 13 2 8/17/2004 Sta 1+75 at -5" below top of AC 14 2 8/17/2004 Sta 2+75 at -5" below top of AC 14a 2 8/17/2004 Retest of #14 15 2 8/17/2004 Sta 3+75 -5 below top of AC V 16 2 8/11/2004 Sta: 4t25,--5" below top of AC 16a 2 8/17/2004 Retest Of #16 17 3 V 8/18/2004 Sta. 1+151 -3" below top of AC 18 3 V• 8/i 8/2604 Sta. 2+00, -3" below top of AC 19 3 8/18/2004 Sta. 3+00, -3" below top of AC Table2 Test Sample Test Moisture Dry Density (pcf) Relative Compaction Conform Test Location Date Field J Optimum Field Maximum Obtained Required Non-Conform 20 3 5/1:8/2004: Sta. 3+90, -3" below top of AC -. - 140;15 o!florm 21 3 8/1 8/2004 Sta 5+25 -3' below top of AC - - 141.2 1465 96% 95% Conform 22 4 8/25/2004 Sta 1+60 at FG - - 1396 144.9 96% 95% Conform 23 4 8/25/2004 Sta. 2+60 at FG - - 138'.8 144.9 96% 95% Conform 24 4 8/25/2004 Sta 3+25 at FG - - .140.1 144.9 97% 95% Conform 25 4 8/25/2004 Sta. 4+40 at FG - - 137.9 144.9 95% 95% Conform 26 4 8/25/2004 Sta. 5+10 at FG - - 136.2 144.9 94% 95% Nonconform 26a 4 8125/2004 Retest of #26 - - 138A .144.0 95% 95% Conform 27 1 9/7/2004 Sta., 5+85 -2' below existing surface 12.4% 15.0%' 0.5.6. 115.0 92% 900/o Conform 28 1 9/7/2004 Sta. 6+25 72' below existing surface 13.1% 15.0%. 1W6. 115.0 87% 90% Nonconform 28a 1 9/7/2004 Retest of #28 13 2% 15 0% 103 8 115 0 90% 90% Conform 29 1 9/8/2004 Sta. 5+50 -2 below existing surface 13.1% 15.0W:', 103 8 115.6 90% 906/o Conform 30 1 9/8/2004 Sta. 5+70 -2' below existing surface 12.7% 15.0% 104.9 1150 91% 90%-,+,-":Conform