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Waters Edge P2-LR 940429reed engineering GEOTECHNICAL CONSULTANTS April 29, 1994 Project No. 1132.3 Report No. 1 Matthews Investments Southwest, 5220 Spring Valley, Suite 500 Dallas, Texas 75240 ATTN: Mr. Tim House Inc. Re: Construction Materials Testing Waters Edge, Phase II Sandy Lake and McArthur Coppell, Texas Gentlemen: Submitted here are the results of testing and observation of construction materials at the referenced project. This report addresses the activities for the period of March 2 through April 25, 1994. On March 2, 1994, two soil samples of proposed imported fill were obtained and returned to the laboratory and tested for Atterberg Limits, [Plasticity Index (PI)]. The materials were found to have PI's of 27 and 33. During the period of March 15, 1994, through April 15, 1994, there samples of imported material and a sample of the natural subgrade were obtained and returned to the laboratory for development of optimum moisture-density relationships (Standard Proctor Curves). Test results are attached as Plates 1 through 4, (Curves Nos. 10 through 13). During the period of March 15, 1994, through April 25, 1994, a total of 53 field density tests were taken on the subgrade and natural fills placed on the building pads and streets and utility backfill. Test results are shown on Plates 5 through 7. Where tested, materials were found to be in compliance with project specifications, except as noted. Where materials were not in compliance, the soils were reworked and retested. Test failures and retests are noted in lower and upper case letters, respectively. 2424 STUTZ DRIVE · SUITE400 · DALLAS, TEXAS75235 · 214/350-5600 · (FAX) 214/350-0019 Matthews Investments Southwest, Project No. l132.3/Report No. 1 Report No. 1 Page 2 Inc. Additional reports will be submitted as the work progresses. have any questions, do not hesitate to call. Sincerely, If you BES/RFR/msm copies submitted: (i) (i) Matthews Investments Southwest, Inc./ Mr. Tim House Kadleck & Associates/Mr. Lynn Kadleck, P.E. City of Coppell/Mr. Larry Davis reed engineering 93 9~ 91 90 20 22 24 26 28 Moisture Content (%) Standard Proctor Compaction Test No. 10 25 blows per each of 3 layers, with 5.5 pound hammer and 12 inch drop using Test porformed on minus Boring No. -- Location Depth - Sample No.__ Classification 4 inch diameter mold #4 Sieve size mmerial Waters Edge, Phase II Coppell, Texas Tan serverl¥ weathered limestone Liquid Limit Plastic Limit Plasticity Index Maximum Unit Dry Weight Optimum Moisture Content 93.0 23.8 OPTIMUM MOISTURE DENSITY CURVE GEOTECHNICAL CONSULTANTS - PI_ATE I , reed engineerin~g 112 110 108 106 8 10 12 14 16 Moisture Content (%) Standard Proctor 25 . blows per each of and 12 inch drop using 4 inch diameter mold Test performed on minus #4 Sieve size material Boring No. -- Location Water Edge, Phase Coppell, Text5 Depth - Sample No._ Classification Compaction Test No. [ ! 3 layers, with 5,5 pound hammer II Brown and dark brown s~DdY clay Liquid Limit % Plastic Limit % Plasticity Index Maximum Unit Dry Weight Optimum Moisture Content 111.0 12.4 OPTIMUM MOISTURE DENSITY CURVE GEOTECHNICAL CONSULTANTS , PI ATF ? reed engineering 104 102 96 / / 12 14 16 18 20 22 24 Moisture Content (%) Standard Proctor Compaction Test No. 12 25 blows per each of 3 layers, with 5.5 pound hammer and 12 inch drop using 4 inch diameter mold Test performed on minus #4 Sieve size material Boring No.- Location Waters Edqe, Phase II Coppell, Texas Depth - Sample No. __ Classification Brown and reddish-brown sandy clay Liquid Limit % Plastic Limit % Plasticity Index Maximum Unit Dry Weight 103.2 Optimum Moisture Content. 18.6 pcf % OPTIMUM MOISTURE DENSITY CURVE PLATE 3 GEOTECHNICAL CONSULTANTS engineering 115 11: 109 107 105 8 10 12 14 16 18 Moisture Content (%) Standard Proctor Compaction Test No. 13 2 5 blows per each of 3 layers, with 5.5 pound hammer and 12 inch drop using 4 inch diameter mold Test performed 'on minus #4 Sieve size material Boring No.- Location Waters Edge, Phase II Coppell, Texas Depth - Sample No. Classification Yellowish-brown sandy clay Liquid Limit Plastic Limit Plasticity Index Maximum Unit Dry Weight Optimum Moisture Content 113.3 12.8 OPTIMUM MOISTURE DENSITY CURVE PLATE 4 G£OTECHNICAL CONSULTANTS reed engineering Test Date No. 03-15-94 1 2 3 4 5 6 7 8 03-16-94 9 10 03-17-94 11 12 13 14 15 16 17 18 03-18-94 19 20 21 22 23 24 25 03-19-94 26 27 28 03-22-94 29 30 31 32 WATERS EDGE, PHASE II SANDY LAKE AND MCARTHUR COPPELL, TEXAS REPORT NO. I Field Density Tests Location Depth Below Unit Final Dry S.G. Weight (feet) (pcf) Fountain Dr./ STA 1+00 B/3 B/3 B/2 B/2 B/2 B/2 B/2 B/2 A/19 Fountain Dr./ STA 0+75 D/5 D/7 Fountain Dr./ STA 0+50 D/9 a/13 a/15 D/ll D/5 a/13 D/9 D/7 D/6 D/4 A/19 D/6 D/4 D/9 D/11 a/12 D/7 D/4 4.5 1 0 0 0 5 0 4 0 3 0 2 0 1 0 0 0 1 0 2.5 3.0 2.8 1 0 1 8 1 1 1 2 1 0 2 0 0 0 0 0 1.2 1.0 2 0 0 0 0 0 1 0 0 0 0 0 0 0 2 0 0 0 120 3 118 1 99 5 118 1 110 1 116 2 109 3 104 5 104 9 110 2 Moisture Content (%) 9.8 14.1 23.0 12.5 17.1 14.4 18.0 14.0 16.5 16.0 Com- pac- tion Curve Level No. (%) 1 98 7 1 96 9 12 96 4 1 96 9 3 95 1 4 97 6 5 94 2 2 96 1 11 94 5 3 95 2 108.7 16.7 11 97.9 113.7 14.7 5 98.0 116.1 13.6 4 97.5 20 7 22 9 14 6 9 1 21 8 24 4 21 2 15 0 17 2 17 2 22 2 14 5 16 0 16 2 14 3 15 4 17 9 15 5 20 9 98 8 100 8 112 4 120 6 100 5 98 2 96 5 109 0 104 5 111 0 98 2 108 5 107 7 107 2 111 5 108 4 108 0 107 7 98 8 12 95.7 12 97.7 3 97.1 1 98.9 12 97.4 12 95 2 10/12 98 4 11 98 2 11/12 97 6 11 97 7 12 95 2 11 97 7 11 97 0 11 96.6 5 96.1 11 97.7 11 97.3 11 97.0 12 95.7 GEOTECHNICALCONSULTANTS . PLATE 5 reed engineerin, g Date 04-15-94 04-18-94 Test No. 34 35 36 37 38 39 40 41 42 43 44 45 46 47 WATERS EDGE, PHASE II SANDY LAKE AND MCARTHUR COPPELL, TEXAS REPORT NO. 1 (Continue) Field Density Tests Location Depth Below Unit Final Dry S.G. Weight (feet) (pcf) Line A/ STA 12+40 Line A/ STA 14+35 Line A/ STA 10+70 Line A/ STA 10+80 Line A/ STA 11+00 Line A/ STA 11+35 Line A/ STA 11+50 Line A/ STA 13+70 Line A/ STA 13+60 Line A/ STA 12+40 Line A/ STA 15+90 Line A/ STA 15+80 Line A/ Lateral to D/9 Line A/ Lateral to D/12 3.0 1.5 5.0 4.0 3 0 2 0 1 0 1 0 2 5 3 0 3 0 1 5 0.0 0.0 100 8 106 6 109 1 105 7 108 9 107 8 106 8 106 8 108.4 104.0 109.8 110.2 Moisture Content Curve (%) No. PLATE 6 23.1 13 13.3 2 14.0 10 16.4 2 15.7 10 14.9 10 10.6 2 15.3 2 15.4 10 20.1 10 17.0 10 17.5 10 Com- pac- tion Level (%) 89.0a 98.1 96.3 97.2 96.2 95 1 98 3 98 3 95 7 91 8a 96 9 97 3 109.2 14.9 10 96.4 108.8 13.1 10 96.0 GEOTECHNICAL CONSULTANTS - reed engineering Date 04-19-94 Test No. 48 49 50 04-20-94 51 04-25-94 52 53 Footnotes: WATERS EDGE, PHASE II SANDY LAKE AND MCARTHUR COPPELL, TEXAS REPORT NO. 1 (Continue) Field Density Tests Location Depth Below Unit Final Dry S.G. Weight (feet) (pcf) Line A/ STA 17+50 0.0 120.1 Line A/ STA 17+00 1.0 110.6 Line A/ STA 16+80 2.0 114.2 Line A STA 12+40 3.0 114.5 Fountain Dr/ STA 1+40(1) 0.0 119.4 Luguna Dr/ STA 3+40(1) 0.0 110.1 Moisture Content Curve (%) No. 11 7 1 16 2 13 15 8 13 13 2 3 13 3 4 14 3 11 Com- pac- tion Level (%) 98.5 97.6 100.8 98.8A 100.3 99.2 (1) Tests performed on water line backfill. PLATE 7 GEOTECHNICAL CONSULTANTS ·