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Home My WebLink About; La Costa Valley Units 1 & 2; Soils Report - Compacted Filled Ground; 1964-11-25- 4 I/, BENTON ENGINEERING, INC. APPLIED &XL MECH*NICS~ FQ”HD*TIOH. - - ,- - - ,- LHlLlP HLNKINO rnCNTON w”I.IDIN,- DlYlL c*mIYI‘” November 25, 1964 Paradise Homes, Inc. Route 1, Box 2550 Encinitas, California Subject: Project No. 64-6-18D Final Report on Gentlemen: This is to report the results of tests and observations made in order to inspect the compaction of filled ground placed on certain oreas of the following locations in or adjacent to La Costa Valley Unit Nos. 1 and 2, Son Diego County, California. - ,- ,- - - - ,- Unit No. 2 Lots 1, 2, 3, 5, and 6 Unit No. 1 Lots 45 to 50, inclusive Lots 56 to 60, inclusive -:t / ,‘, ,-cm xr’ 9 ‘,Y Lob 66 to 88, inclusive ’ ,~~~.. Lots 95 to 101. inclusive ~- i+’ Lots 110 and 111 </ I Lots 113 to 119, inclusive Lots 130 to 133, inclusive Apartment Sites A, B, E, F, H, I, and J Additional Lots below Lots 85 to 50, inclusive* New Cabana Area odjocent to old Cabana Area No. 1” Estrello De Mar Road opposite Lots 48, 49, 66, 67, 80, 95, 96, 97, 116, 118, and 120 Corocol Court opposite Lots 71, 73, 77, 78, 80, and El Cunino Real opposite Lot 98, in the Encinitas area of Son Diego County The fills were placed during the period between April 20, 1964 and October 19, 1964. The approximate areas and depths of filled ground placed under our inspection in accordance with the approved specifications are shown on the ottoched Drawing No. 1, entitled, “Locotidn - of Ccmpocted Filled Ground”. The grading plan used for the placement of filled ground was prepared by Engineering Service Corporation. - The classification of the Lots with regard to expansive characteristics ore summarized on page 21. * This area is not delineated on Drawing No. 1 because the limits of its extent ore not known. - SlOlO .16.28 i- ,;,‘w - Project No. 64-6-18D Lo Costa Volley Unit Nos. 1 and 2 -2- November 25, 1964 The opproximote locations at which the tests were token and the final test results ore presented on pages 3 to 17, inclusive, under “Table of Test Results*‘. In the tabulation, Test Nos. 1 to 407, inclusive, refer to proposed building locations, Street Test Nos. I to 35, inclusive, refer to proposed street locations, and Surplus Xoil Area Test Nos. 1 to 19, inclusive, refer too proposed surplus soil storage area at the extension of Algo Road. The loboratory determinations of the maximum dry densities and optimum moisture contents of the maior fill materials ore presented on pages 18 and 19, under “Laboratory Test Results”. The tests were taken during the weekly periods indicated below: - - - - - - - - - - - - - Test Number Week Ending 1 to 10, inclusive, and Street Tests 1 to 3, incl’urive 11 to 21, inclusive, and Street Tests 4 to 7, inclusive 22 to 27, inclusive 28 to 60, inclusive 61 to 134, inciusive, and Street Tests 8 to 13, inclusive 135 to 183, inclusive, Street Tests 14 to 17and 20 to 22, inclusive 184 to 234, inclusive, Street Tests 18, 19 and 23, inclusive 235 to 281, inclusive, Street Tests 24 to 26, inclusive 282 to 338, inclusive, Street Tests 27, 28 and 29 Surplus Soil Area Tests 1 to 4, inclusive 339 to 367, inclusive, Street Tests 30 to 35, inclusive Surplus Soil Areo Tests 5 to 19, inclusive 368 to 405, inclusive 406 and 407 April 25, 1964 May 2, 1964 June 27, 1964 July 4, 1964 July 11, 1964 July 18, 1964 July 25, 1964 August 1, 1964 August 8, 1964 August 8, 1964 August 15, 1964 August 15, 1964 August 22, 1964 October 24, 1964 The final results of tests and observations indicate that the compacted filled ground has been placed ot 90% of ,the maximum dry density a greater. It has been determined that the fill materials, compacted to 90% of the maximum dry density, have a safe bearing value of at least 1050 pounds per square foot for one foot wide continuous footings founded at a minimum depth and placed five feet or more inside the top of compacted filled ground slopes. If footings are placed closer to the exposed slopes than 5 feet inside the tq, of compacted filled ground slopes, these should be deepened one foot below a 1 l/2 horizontal to 1 vertical line projected outward and downward from a point 5 feet horizontally inside the tap of compacted filled ground slopes. Respectfully submitted, BENTON ENGINARING, INC. M. V. Pothier cc: (2) Building Inspector BENTON ENOINEERING, INC. - - - .- - - - - - - - - - - - Project No. 64-6-18D La Costo Volley Unit Nos. 1 and 2 -3- Approx- imate Location or Lot No. Depth of Fill at Test in Feet Field Moisture % dry wt Test No. Density lb/w ft Maximum Dry Density lb/w ft Percent Compaction Remarks 1 48 2 11.0 101.8 109.4 93.0 2 49 4 7.4 101.9 109.4 93.1 3 48 6 5.7 109.1 116.3 93.8 4 49 8 11.1 109.4 116.3 94.0 5 48 10 10.1 106.4 116.3 91.4 6 49 12 14.2 99.8 109.4 91.2 7 47 12 12,5 105.9 116.3 91.0 8 48 14 12.3 106.7 116.3 91.6 9 Apt. Site J 2 10.4 110.3 119.1 92.6 10 Apt, Site J 4 11*9 107.4 112.1 95.7 11 Apt. Site J 6 II,9 97.8 119.1 82.2 12 Apt. Site J 6 11.2 107.9 119.1 90.5 13 Apt, Site J 8 12.6 105.5 116.3 90.6 14 Apt, Site J 10 12,2 103.9 112.1 92.6 15 Apt. Site J 12 13.9 98.8 109.4 90.3 16 Apt. Site J 12 12.9 104.6 116.0 90.2 17 Apt. Site J 2 10.2 108.4 114.0 95.1 18 47 16 10.9 109"O 119.1 91,4 19 49 16 10.6 110.4 119.1 92.7 20 Apt. Site J 4 10.4 107,7 112.1 95-9 21 Apt. Site J 6 12.6 110.8 119.1 93.0 22 130 2 11.0 115.4 121.3 95.1 23 131 4 8.7 104.0 113.6 91.6 24 130 6 9.3 106.3 113.6 93.6 25 131 8 11.4 105.5 113.6 93.0 26 132 2 10.8 105.0 113.6 92.5 27 130 10 9.9 105.3 113.6 92.8 28 133 4 13,7 94.2 108.2 87.0 29 119 2 15.0 99,5 108-2 9108 30 133 4 16.1 98-9 108.2 91,4 31 118 4 10.7 108.0 119.4 90.4 32 119 6 14.1 101.1 111.3 90.9 33 117 6 10.3 108.9 119.4 91.0 34 118 8 11.3 106.4 117.3 90.6 35 96 2 10.4 109.5 121.9 90.0 36 96 4 15.4 100.8 108.2 93.2 37 96 6 15.5 99.7 108.2 92.0 38 95 8 19.3 104.2 111.3 93.6 TABLE OF TEST RESULTS November25, 1964 Reworked Check ar'#ll Reworked Check on #28 BENTON ENGINEERINO. INC. - -. - - - - - - - - - - - - - Project No. 64-6-18D La Costa Volley Unit Nos. 1 end 2 -4- Approx- imate Location OT Lot No. Depth of Fill at Test in Feet Field Moisture % dry wt Maximum Dry Test NO. Density lb/w ft Density lb/w ft Percent Compaction Remarks 39 96 10 9.7 103.5 111.3 93.0 40 113 2 10-2 102,o 113.6 90.0 41 95 12 9.9 102.7 111.3 9202 42 II3 4 14.3 106.4 117.3 90.6 43 96 I4 13.2 loo.0 110.3 90.6 44 95 16 12.6 101.2 105.2 96.2 45 97 16 13-7 102,l 113.6 90.0 46 96 18 9.9 105.6 113.6 93.0 47 95 20 13.0 100.6 111.3 90.5 48 97 20 12.6 101-9 113.6 90.0 49 96 22 9.3 115.6 121.9 94.9 50 95 24 12.3 102.3 113.6 90.2 51 97 24 12.3 loo.2 109.8 91.3 52 95 26 10.4 104.6 113.6 9201 53 96 26 14.2 101.9 111.3 91.6 54 87 2 10.5 103.9 113.6 91.4 55 82 2 12.8 106.2 113.6 93.6 56 87 4, 13.5 97.4 108.2 90.0 57 82 4 13.3 103.7 113.6 91-4 58 76 2 1 1-o 109.2 119.4 91.5 59 119 10 12.7 111.9 119.4 93.7 60 117 10 10.9 102.2 113.6 90.0 61 116 4 8.0 101.0 108.2 93.2 62 115 2 9.1 103.0 108.2 95.1 63 114 2 9.9 97.8 108.2 90.4 64 115 4 15.4 107.9 119.1 90.4 65 116 6 Il.3 109.0 119.1 91.3 66 1 2 12.2 103,3 113.6 91.1 67 131 12 11.5 108.8 119.1 91.2 68 2 4 10.2 104.6 '113.6 92.0 69 130 12 13.6 103.3 113.6 91.1 70 115 8 8.8 110.1 119.1 92.5 71 5 1 9.0 116.6 119.1 97.8 72 6 3 8.7 109.4 119.1 91.9 73 133 4 12.9 97.5 108.2 90.1 74 133 6 11.1 97.7 108.2 90.3 75 133 8.2 9.0 107.5 119.1 90.2 76 5 5.5 8.3 109.6 116.2 94.3 TABLE OF TEST RESULTS(CONT.) November 25, 1964 At Grade At Grade BENTON ENGINEERING. IN‘ Project No. 64-6-18D Lo Costo Valley Unit Nos. 1 and 2 -5- Test No. Approx- imate Location or Lot No. Depth of Fill at Test in Feet Field Moisture % dry wt Dry Density Ib/‘cu fi Maximum Dry Density Ib/cu ft Percent Compact ion 77 6 5.8 7.7 117.8 121.2 97. 1 78 87 6 11.8 102.0 108.2 94.2 79 88 10 9.2 99.0 108.2 91.4 80 88 13.3 11.4 105.7 116.2 90.9 81 132 7 8.3 10805 119. I 91.2 82 118 12 8.7 117.8 119.1 98.8 83 117 12 11.1 105.2 113.6 92.8 84 97 28 10.1 loo,3 108.2 92.8 85 98 2 9.6 101.2 105.2 96.2 86 77 10 11.1 106.1 113.6 93.5 87 99 4 16.2 93.4 105.2 88.6 88 98 6 10.5 98.0 113.6 86.2 89 98 6 16.4 96.1 105.2 91.5 90 98 8 11.2 107.9 119.1 90.5 91 83 2 13.2 99.0 108.2 91.5 92 81 4 14.6 50.7 116.2 78.0 93 81 4 7.4 116.0 121.2 95.7 94 82 6 8.8 111.2 121.2 91.7 95 84 4 9.3 117.2 121.2 96.7 96 78 4 12.8 9%.‘1 108.2 90.6 97 76 4 7.1 107.0 116.2 92.0 98 83 8 9.8 121.7 125.2 97.2 99 81 8 8.0 113.7 121.2 93.8 100 77 6 9.9 105.5 116.2 90.8 101 84 8 9.2 109.5 116.2 94.2 102 83 12 9.8 114.5 121.2 94.4 103 85 2.2 9.3 11.4 121.2 92.0 104 75 2 8.6 99.1 108.2 91.6 105 83 16 10.3 105.9 116.2 91.1 106 72 2 12.5 111.0 116.2 95.5 107 74 2 8.3 115.5 121.2 95.3 108 77 IO 10.8 106.3 116.2 91.4 109 76 8 8.3 112.9 121.2 92.9 110 75 6 9.4 109.7 116.2 94.3 111 74 6 7.9 114.9 116.2 98.8 112 76 12.8 11,l 109.6 121.6 90.0 113 77 12.5 13,6 loo.7 108.2 92.8 114 78 8.1 11.5 97.7 108.2 90.3 TABLE OF TEST RESULTS (CONT.) November 25, 1964 Remarks At Grade At Grade At Grade At Grade At Grade Reworked Reworked Check on #88 Rewaked Check on #92 At Grade At Grade At Grade At Grade BENTON ENOINEERING. INC. - - - - - - - - - - - - - - - Project No. 64-6-18D La Costa Volley Unit No:. 1 and 2 -6- Approx- Depth imate of Fill Test Location at Test No. or Lot No. in Feet 115 73 116 79 117 80 118 80 119 75 120 72 121 97 122 99 123 Apt. Site E Opp. Lot 96/97 124 Apt, Site E opp. Lot 95 I25 Apt. Site A Opp, Lot 98 126 Apt. Site E Opp. Lot 96 127 Apt, Site A Opp. Lot 98 128 Apt. Site E Opp. Lot 96 129 Apt. Site A Opp. Lot 98 130 74 131 80 132 73 133 79 134 Apt. Site E Opp. Lot 96 135 74 136 84 137 82 138 83 139 82 140 82 141 72 142 87 143 95 144 70 6 8.5 102.2 108.2 94,4 4 8.7 109.3 121.6 90.0 2 8.9 111.2 116.2 95.6 4 10.8 102.0 116.2 87.8 9.6 9.7 106.7 116.2 91.8 6 6.7 109.7 116.2 94.3 30 8.4 111.1 119.1 93.2 4 12.9 99.8 116.2 85.9 2 18.5 98.4 108.2 90.6 2 9.6 99.4 105.2 2 12.5 102.5 113.6 94.4 90.3 4 13.5 107.2 119.1 4 11.2 99.3 110.3 90,O 90.0 6 10.3 96.6 105.2 91.6 6 17.6 106.1 116.2 91.5 10 6”6 110.1 121.2 90.8 A 7.8 112.5 116.2 96.7 10 11.7 105.9 116.2 91.1 6 11.0 101.9 110.3 92.3 8 7.4 102-4 116.3 88.1 12.2 9.5 105.2 110.3 95.3 12.6 9.3 107.7 116.2 92.5 10 8.2 Ill.4 116.2 95,9 20.8 11.6 112.8 116.2 97.0 14 10.9 99.6 108.2 92.0 16 9.7 108.2 119.1 90%.7 8 13.3 102.5 113.6 90.2 8 10.3 1 lo,2 118.2 93.2 24 12.2 11203 118.2 95.0 2 9.7 115.0 124.9 92.0 TABLE OF TEST RESULTS (CONT.) Field Moistlxe % dry wt Dry Density lb/w ft Maximum Dry Density lb/c” ft November 25, 1964 Percent Compaction Remarks Reworked At Grade Reworked Check on #l I8 Reworked At Grade At Grade At Grade At Grade BENTON ENGINEERING. INC. - ,- - - - - - - - - - - - Project No. 64-6-I8D La Costa Valley Unit Nos. 1 anr: 2 -7- Approx- imate Test Location No. or Lot No. Depth of Fill ot Test in Feei Field Moisture % dry WI Dry Maximum Dry Density Ib/cu ft Density Ib/cu ft Percent Compact ion I45 71 4 12.4 110.8 118.2 93.7 146 86 3 7.1 110.1 118.2 93.1 147 72 12 9,3 Ill.4 119.0 93.6 148 70 6 10.0 113.5 119.0 95.3 149 79 8 11.9 93.8 113.6 82.5 150 Apt. Site E 8 10.6 96.1 113.6 84.5 151 Apt. Site E 8 17.1 107.2 119.1 90.1 152 Apt. SiteE 8 12.2 100,.3 110.3 91.0 153 Apt. Site E 8 16.6 99.2 110.3 90.0 154 Apt. Site E 10 8.6 109.4 121.8 90.0 155 Apt. Site E 10 12.7 104.7 113.6 92.2 156 Apt. Site E 10 10.1 102.9 110.3 93.2 157 Apt. Site E 12 12.0 110.1 119.1 92.5 158 Apt- Site E 12 16.7 103.1 113.2 91.2 159 Apt. Site E 12 17.4 99.4 110.3 90.0 l&l 79 8 8.6 108.6 113.6 95.6 161 72 14 10.0 117.2 123.2 95.1 162 72 16 10.0 111.4 123.2 90.4 163 73 12 14.6 loo.5 108.2 92.8 164 71 6 13.0 114.7 123.2 93.1 165 72 20.1 10.2 121.1 123.2 98.2 166 80 8 10.0 112.3 115.7 97.0 167 79 .I2 13.3 104.4 115.7 90.2 I68 80 12 12.9 111.2 123.2 90.2 169 79 14 13.0 107.8 115.7 93.1 170 Apt. Site E 14 12.6 105.2 116.2 90.5 171 Apt. Site E 14 16.1 100.4 110.2 91.0 172 Apt. Site B 14 8.4 108.6 115.2 94.1 173 Apt. SiteE 16 12.6 110.0 117.6 93.5 I74 Apt. Site E I6 13.3 107. I 119.1 90.0 175 Apt. Site A I6 12.2 103.6 113.6 91.1 176 99 4 13.3 102.2 113.6 90.0 177 99 8 8.1 104.2 113.6 91.7 178 99 10 12.3 105.8 116.2 91.0 1~79 99 12 12.1 114.2 123.2 92.8 180 99 14 13.4 103.4 113.2 91.3 181 99 16 17.6 106.2 113.6 93.5 TABLE OF TEST RESULTS (CONT.) November 25, 1964 Remarks At Grade Reworked Reworked Check On #134 Check on #150 Check on #149 At Grode Check on @7 and #I22 BENTON ENGINEERING. INC. - - - ,- ,- - ,- - - - - - - - - Project No. 64-6-18D La Costa Valley Unit Nos. 1 and 2 -8- November25, 1964 Approx- imate Test Location No. or Lot No. 182 99 183 3 184 101 185 113 186 111 187 109 188 110 189 101 19U 113 191 100 ,192 80 193 79 194 70 195 71 196 70 197 80 I98 69 199 67 200 68 201 71 202 81 203 67 204 69 205 70 206 80 207 Apt. Site A 208 Apt. Site B 209 68 210 Apt. Site A 211 71 212 Apt. Site B 213 Apt. Site A 214 Apt. Site A 215 Apt. SiteB 216 Apt. Site A 217 66-67 218 69 219 70 TABLE OF TEST RESULTS(CONT.) Depth of Fill at Test in Feet Field Moisture % dry wt I8 10.8 2 12.7 1 18.9 6 10.0 1 11.4 1 13.9 2 9.7 3 9.6 8 16.7 2 17.5 16 11.6 18 8.8 8 14-o 10 8.0 12 10.6 20 12.3 2 11.6 2 12.9 4 15.3 I4 13.5 10 15.3 6 16.7 6 17.3 16 14.0 22 19.0 10 16.9 16 16.7 8 18.3 12 13.0 18 16.1 18 18.1 14 14.7 14 14.0 20 13.3 16 7.8 10 13,4 10 12.5 18 14.1 Dry Density Ib/cu ft 100.9 112.6 93.0 106.8 101.2 94.1 98.8 100.8 101.9 100.6 114.7 105.8 111.5 111.0 113.5 119.6 113.9 102.5 109.4 115.0 107.2 106.9 103.8 103.7 106.5 104.0 102.5 105.2 107.3 102.7 104.0 97.3 112.8 10600 115.2 103.2 110.1 111.0 Maximum Dry Density Percent Ib/cu ft Compaction Remarks 110.3 91.5 123.2 91.3 99.3 93.6 116.2 91.8 110.3 91.8 99.3 94.8 104.8 94.3 104.8 96.0 113.2 9Q,O 110.2 91.2 123.2 93.0 115.7 91.3 123.2 90.5 115.7 95.8 123.2 92.1 123.2 97.0 120.0 94.7 113.5 90,2 116.0 94.3 123.2 93.3 116.0 92.4 111.3 96.0 111.3 93.2 111.3 93.0 Ill.3 95.6 111.3 93.5 113.6 90.2 112.6 93-5 115.1 93.2 111.3 92,2 111.3 93.3 111.3 87.4 114.0 98.7 115.1 92.0 120.0 96.0 113.6 90.7 120.0 91.7 120,o 92.4 At Grade Rewrwked Check on #213 BENTON ENGINEERING. INC. ,- - .- - - - - - - - - - - Project No, 64-6-18D Lo Costa Valley Unit Nos. 1 and 2 -9- Approx- Depth imate of Fill Test Location at Test NO. or Lot No. in Feet Field Moisture % dry wt Dry Maximum Dry Density lb/w ft Density I b/w ft Percent Compaction Remarks 220 81 14 11.0 109” 1 115.1 94.8 221 Apt. Site 8 22 10.6 106.9 117.1 91.2 222 Apt. Site A 18” 11,9 109,5 117.3 93.2 223 82 18 16. 1 109.4 115.8 94.4 224 68 12 14.3 110.0 119,l 92.4 225 66-67 14 15.4 103.1 110.3 93.4 226 69 14 14.4 111.8 119.1 93.7 227 Apt. Site F 2 12.6 105.2 115.8 90.8 228 Apt. Site F 4 13-o 109.2 115.8 94.3 229 Apt. Site F 6 13.5 110.7 115.8 95.5 230 68 16 12.8 104,2 115.1 90.4 231 70 20 13,9 107.7 115.1 93.5 232 Apt. Site F 8 12.4 105.0 111.3 94.3 233 Apt. Site F 2 13.7 112.1 115.1 97.3 234 81 16 17.8 106.5 115.1 92.5 235 Apt. Site F 10 17.3 108.0 114.0 94.6 236 Apt. Site F 4 14.1 106.7 114.0 93.5 237 68 18 18.8 103.6 114.0 90.9 238 69 18 w.5 103.8 115.1 90. I 239 Apt. Site F 12 14.5 103.8 114.0 91.0 240 Apt. Site H 2 15.6 102.3 115.6 88.5 241 66-67 20 11.4 111.5 114.0 97,7 242 Apt. Site F 14 12.5 103.8 114.0 91.0 243 71 20 13.2 110.1 119.0 92.4 244 Apt. Site F 16 13-I 106.2 111.3 95.4 24.5 70 22 16.7 101.5 112.4 90.3 246 69 20 16.2 108.7 116.6 93.1 247 Apt. Site F 18 12.6 104.0 112.4 92.5 248 68 20 11.6 104.3 116.0 90.0 249 Apt. Site H 2 11.6 102.8 114.0 90.2 250 Apt. Site J 16 10.6 loo.7 116.2 86.6 251 Apt. Site J 14 10.3 105.0 116.2 90.4 252 Apt. Site J 16 ,13.7 104.5 116.2 90.0 253 Algo Street 8 14.1 10308 111.9 92.6 254 Apt. Site F 2 14.3 107.3 115.2 93.0 255 Apt. Site F 4 17.3 106.0 111.9 94.6 256 Apt. Site J 18 11.8 101.7 111.9 90.8 257 Apt. Site J 16 8.6 103.9 108.2 96.0 TABLE OF TEST RESULTS (CONT.) November 25, 1964 At Grade Reworked Check QI #24U Reworked Check on #250 BENTON ENGINEERINO. INC. .- .- - - - - - - - - - - - - - Project No. 64-6-18D Lo Costa Volley Unit Nos. 1 and 2 -lO- Approx- Depth imnte of Fill Test Location at Test No. or Lot No. in Feet Field Moisture % dry wt 258 Apt. Site J 10 10.7 259 Apt. Site J 20 9.0 2&l Apt. Site J 18 12.9 261 Apt. Site J 12 11.4 262 Apt. Site H 4 16.2 263 Apt. Site F 6 12.5 264 Apt. Site H 6 13.4 265 73 14 8-O 266 Apt. Site H 8 10.2 267 Apt. Site J 22 7.7 268 Apt. Site J 20 9.8 269 Apt. Site J 14 9.2 270 Apt. Site F 8 15.6 271 Apt. Site H 10 14.2 272 Apt. Site H 12 14.0 273 Apt. Site J 24 12-2 274 Apt. Site J 22 11.6 275 Apt. Site J 16 7.7 276 Apt. Site H 14 1801 277 Apt. Site H 16 11-9 278 Apt. Site J 26 12.1 279 Apt. Site J 24 11.0 280 Apt. Site J 18 9.9 281 Apt. Site H 18 17.6 282 Apt. Site H 20 17,o 283 Apt. Site H 22 9.4 284 Apt. Site J 28 13.8 285 ‘Apt. Site J 26 11,2 286 Apt. Site J 20 9.8 287 48 18 9.6 288 57 2 8.9 289 70 * 24 13.1 290 47 20 10.4 291 49 20 10.8 292 46 2 10.9 293 57 4 12.8 294 57 6 17.2 295 57 8 16.0 * Swell TABLE OF TEST RESULTS (CONT.) Dry Maximum Dry Density Ib/cu ft Density lb/w ft Percent Compaction Remarks 107.8 113.6 94.7 106.8 113.6 94-o 105.9 113.6 93.2 100.6 108.2 92.8 107.8 114.0 94.5 107.8 115.8 93*0 10408 114.0 91.8 95.5 103.4 92-2 101.8 111.3 91.4 101 :o 108.2 93,3 101.9 108.2 94.0 105.7 116.2 90.8 108.2 115.8 93,4 108.3 115.8 93.5 110.2 115.8 95.1 106.8 115.8 92.0 110.5 118.7 93.0 101.5 107.4 94.4 102.3 113.5 90.3 107.5 114.9 93.5 104.3 115.2 90.5 10402 115.8 90.0 111.3 113.6 97.9 101 .o 109.1 92.5 108.6 114.2 95.0 114.0 121.6 93.8 108.7 116.2 93,s 101.2 108.7 93.1 98.4 108.7 90.3 100.4 109.4 91.8 10708 114.0 94.5 102.9 114.0 90.2 98.4 108.2 PO.8 99,o 108.2 91.5 104.0 108.2 96.0 108.9 119.0 91”4 102.5 110.0 93.0 106.6 114.0 93.4 November 25, 1964 At Grade BENTON ENGINEERING. INC .- - - - - - - - - - - - - - - Project No. 64-6-18D Lo Costa Volley Unit Nos. 1 and 2 -ll- Approx- imate Test Location No. or Lot No. 296 48 297 56 298 48 299 49 300 Apt. Site J 301 Apt. Site J 302 Apt, Site J Alga Street 303 57 304 56 305 57 306 Apt. Site J 307 Apt. Site J 308 Apt. Site J 309 56 310 56 311 57 312 56 313 Apt, Site J 314 Apta Site J 315 Apt. Site J 316 58 317 Apt. Site J 318 Apt. Site I 319 58 320 59 321 Apt, Site 1 322 Apt. Site I 323 80 324 80 325 80 326 Apt. Sit:: I 327 Apt. Site I 328 Apt” jite J” 329 Apt. Site J 330 Apt. Site I 331 Apt0 Site I *Swell TABLE OF TEST RESULTS (CONT.) Depth of Fill at Test in Feet Field Moisture %drywt Dry Density I b/cu ft Maximum Dry Density Ib/cu ft Compaction Remarks 22 800 102.9 113.6 90.5 10 16.1 104.3 112.0 93.1 24 13.9 108.0 119.0 90.7 26 8.8 104.7 113.6 92.1 30 13,7 101.7 110.0 92,3 28 11.7 102.6 113.6 90.3 22 12-l 100.7 107.4 93.7 12 16.4 106.8 115.8 92.0 14 16-4 105.0 115.8 90.5 16 15.7 100.3 107.4 93.3 32 11 .o 110.0 115.8 95.0 30 lo,4 107.2 115.8 9205 24 17,3 102,o 111.3 91.6 18 14.2 95.8 104.6 91.6 20 10.0 99.1 104.6 94.7 22 10.7 97.6 104.6 93.4 24 11,2 112.3 123.2 91.1 34 11.4 107”5 119.1 90.1 32 8.6 99” 4 108.8 91.2 26 11.8 107.3 119.1 90.0 2 14.2 9808 119.1 83.0 36 8,8 103.2 113.6 90,8 2 11.1 102.5 110.3 92.9 2 6.4 109,o 119.1 91.4 4 5-9 111.3 119.1 93.4 4 13.9 101.1 111,2 90.8 2 14.7 100.4 115.3 87.0 2 15.0 108.4 118-2 91.7 4 14.2 107.6 118.2 91.0 6 13.7 106.4 109.1 97.4 2 14.9 105.2 111.3 94.4 6 12.4 105.9 117.4 90.2 33 13.2 109.5 119.1 91.9 38 8.8 109.6 119.1 92.0 t: 13.4 109.3 120.0 91.2 8 12-8 108.3 120.0 90.2 November 25, 1964 Reworked Check on $316 Reworked Check on #322 BENTON ENGINEERINO. INC - - - - - - - - - - - - - - - - - - Project No. 64-6-18D La Costa Volley Unit Nos. 1 and 2 -12- Approx- imgte Test Location No. or Lot No. 332 Apt, Site H 333 87 334 82 335 81 336 79 337 79 338 71 339 Apt, Site I 340 Apt. Site I 341 57 342 58 343 58 344 56* 345 57 346 Apt. Site H 347 Apt. Site H” 348 Apt. Site J* 349 Apt. Site J 350 Apt. Site J 351 Apt. Site I 352 Apt. Site I 353 Apt. Site I 354 Apt. Site I 355 Apt, Site I’ 356 Apta Site I 357 Additional Lots Behind 85 -90 358 Additional Lots Behind 85-90 359 Additional Lots Behind 85-90 360 Additional Lots Behind 85-90 361 Additional Lots Behind 85-90 *Swells TABLE OF TEST RESULTS (CONT.) Depth of Fill at Test in Feet Field Dry Moisture Density % dry wt lb/w ft Maximum Dry Density Percent I b/cu ft Compaction 24 10.3 104.6 113.6 92.0 10.9 16.9 104.1 115.8 90,o 23.5 12.2 99.0 116.1 85.3 17.8 10.7 111.7 119.1 93.7 2c lC.7 104.5 110.5 94-4 22 10.6 95.4 99.3 96.0 22.3 14.9 106.4 115.8 91.8 10 13.7 110.2 119.5 92.2 10 11.4 104.5 115.8 90.2 26 11.5 116.2 123.2 94.4 6 11.8 104.5 115.8 90.2 8 12.7 99.8 110.0 90.7 28 12.4 113.3 123.2 92.0 30 13.8 112.7 121.1 93.0 24 14,4 109.2 121.1 90.1 26 13.9 114.0 123.2 92.4 40 12.3 110.3 121.1 91.0 40 12.1 107.7 119.1 90.4 34 10.6 115.5 123.2 93.6 12 18.8 103.2 111.3 92.7 12 13.9 112.5 123.2 91.2 14 15.4 101.1 112.4 90.0 14 8.1 104.5 115.8 90.2 16 2004 101.3 109.1 92.7 16 14.3 114.3 124.9 91.5 2 8.7 109.3 118.6 92.2 2 11.8 109.6 118.6 4 13.7 112.4 123.2 4 11.2 105.2 114.0 2 12.0 119.0 124.9 92.4 91.1 92.2 95.3 November 25, 1964 Remarks At Grade At Grade At Grode At Grade At Grade At Grade At Grade BENTON ENGINEERING. INC - .- - - - - - - - - Project No, 64-6-18D Lo Costa Valley Unit Nca. 1 and 2 -13- Approx- Depth imate of Fill Test Location at Test No. or Lot No. in Feet 362 Additional Lots 2 Behind 85-90 363 Additional Lots 4 Behind 85-90 364 Additional Lots 4 Behind 85-90 365 Additional Lots 6 Behind 85-90 366 Apt. Site I* 18 367 Apt. Site I* 18** 368 Additional Lots 6 Behind 85-W 369 Additional Lots 6 Behind 85-90 370 Additional Lots 8 Behind 85-90* 371 Additional Lots 8 Behind 85-90 372 Additional Lots 1C Behind 85-90 373 Additional Lots 6 Behind 85-90* 374 Additional Lots 10 Behind 85-90 375 Apt. Site J’ 42 376 Apt. Site J* 42 377 Apt. Site J’ 36 378 70* 26 379 6P 22.4 380 68* 22.9 381 67* 22 382 66* 18.5 383 59* 6 384 50 2 335 49 28 386 48 26 *Swells **At Grade TABLE OF TEST RESULTS (CONT.) Field Moisture o/c dry wt Dry Maximum Dry Density lb/w ft Density lb/w ft Percent Compaction Remarks 14.5 103.2 111,3 92.7 16.2 107.9 119.1 90.5 9.7 106.2 115.8 91.6 14.2 106.8 116.5 91.6 16.3 102.5 116.5 87.9 16.3 112.5 119.1 94.3 10.7 106.2 114.0 93.1 19.2 99.0 109.6 90.3 13.6 119.2 123.2 96.7 11.1 lC5.8 115.8 91.5 12.7 lC3.0 111.1 92.6 13.1 108.6 115.8 93.8 10.7 101.8 111.1 91.5 15.8 106.5 115.7 92.0 15.1 101.4 112.4 90.2 23.0 94.5 108.2 87.4 14.3 107.0 111.3 96.0 16.3 105.8 111.3 94.9 15.c ICY.0 114.1 95.5 14.5 105.7 111.5 94.8 17.3 106.0 109.1 97.0 11.7 102.3 115.8 88.3 11.3 107.9 116.2 92.7 11.0 103.1 114.0 90.4 11.1 104.0 113.6 91.5 November 25, 1964 Reworked Check on #366 At Grade At Grade At Grade Reworked At Grade At Grade At Grade At Grade At Grade Reworked At Grade At Grade BENTON ENGINEERING. INC. - - - - - - - - - - - - Project No. 64-6-18D La Costa Valley Unit Nos., 1 and 2 -14- Approx- imoto Test Location No. or I.,ot No. 387 47 388 45 389 46 390 46 391 Apt. Site B 392 Apt. Site H 393 Apt. Site H 394 Apt. Site J 395 Apt. Site I 396 Apt. Site F 397 Apt. Site F 398 Apt. Site F 399 Apt. Site F 400 New &bona Area Adi. to Old #I 401 New Cabana Area Adi. to Old #I 402 New Cabana Area Adi. to Old 81 403 New Cabano Area Adi. to Old #I 404 New Cabono Area Adi. to Old #l 405 New Cabana Area Adj. to Old #l 406 59 407 82 1 **At Grade TABLE OF TEST RESULTS (CONT.) Depth of Fill at Test in Feet Dry Density lb,‘cu ft 111.8 104.5 107.5 109.7 107.1 ,109.9 102.5 109.3 113.5 107.7 109.8 106.6 98.2 110.0 Maximum Dry Density Ib/cu ft 22 4 6 8 24 28 28 36*’ 18** IO 12 14 20 1 Field Moisture % dry WI 9.8 8.4 12.0 11.3 11.0 14.6 11.7 18.1 16.4 13.1 12.1 15.7 14.5 9.5 119.1 113.6 119.1 119.1 117.3 120.2 113.2 118.2 118.2 119.0 119.0 116.0 108.2 119.0 Percent Compaction Remarks 93.8 91.9 90.2 91.9 91.3 91.3 At Grade 90.4 At Grade 92.4 Check on ff377 96.0 90.4 92.0 91.8 At Grade 90.7 At Grade 92.4 3 9.1 95.6 104.8 91.3 5 10.5 98.0 104.8 93.4 5 10.7 94.9 104.8 90.5 7 8.8 110.3 114.0 96.7 7 8.5 114.5 123.2 93.0 6 ** 10.5 99.0 106.7 92.8 Check on #383 23.5” 14.5 104.2 114.0 91.3 Check on #334 November 25, 1964 BENTON ENGINEERINO. INC. - - - - - - - - .- - - - - Project No, 64-6-18D Lo Costa Valley Unit Nos. 1 and 2 -15- Street Test NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Approx- Depth imate of Fill Locat ion at Test or Lot N,. in Feet Eztrelio De Mar opp. Lot 48 Eztrello De Mar opp. Lot 48 Estrella De Mar opp. Lot 48 Estrello De Mar opp. Lot 48 Estrella De Mor opp. Lot 48 Estrella De Mar opp. Lot 48 Estrello De Mor opp. Lot 48 Opp. Lot 96 Opp. Lot 96 Carcol Court opp. Lot 78 Corcol Court Opp. Lot 80 County No, 1 Estrella De Mar opp. Lot 97 County No. 2 Estrella De Mar opp. Lot 95 Estrello De Mar Opp. Lot 116 Estrella De Mar Opp. Lot 118 Estrella De Mar opp. Lot. 170 Estrella De Mar opp. Lot 98 El Comino Real opp. Lot 98 2 4 6 8 10 12 14 2 2 2 2 Field Dry Moisture Density % dry wt Ib/cu ft 10.9 104.1 9.7 106.3 11.3 106.7 10.9 111.0 11.5 101.0 13.9 107.3 13.2 104.3 8.6 90.9 9.7 100.2 10.0 112.2 12.6 108.5 11.1 103.9 Maximum Dry Density I b/cu ft 113.6 116.3 116.3 119.1 110.6 119.1 112.1 105.2 105.2 119.1 113.6 114.6 Percent Compaction Remarks 91.6 91.3 91.7 93-2 91.3 90.1 93.0 86.3 Reworked 95.1 Check on #8 94.2 95.5 90.7 14.4 105.5 116.2 90.7 2 14.8 103.3 113.6 91.1 2 12.8 102.3 113.6 90.1 2 10.4 110.2 119.1 92.5 2 16.4 100.2 111.3 90.0 4 14.4 99.3 110.2 90.1 TABLE OF TEST RESULTS November 25, 1964 BENTON ENGINEERING. IN.2 - ,~ - - - - - - - - - - - - - Project No. 64-6-18D Lo Costa Volley Unit Ncs* 1 and 2 -16- November 25, 1964 Approx- Street itiatc Test NO. Location or Lot No. 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Depth of Fill at Test in Feet El Comino Real opp. Lot 98 Carocol court opp. Lot 73 Caracol court opp. Lot 77 Coracol court Opp. Lot 80 Caracol court opp. Lot 71 El Camino Real Opp. Lot 98 Estrella De Mar Opp. Lot 81 Estrella De Mar 5 opp, Lot 66/67 Estrello De Mar 18 opp. Lot 48 opp. Lot 47 18 Alga street 14 Algo Street 13 Alga Street 4 Alga Street 4 Alga Street 8 Alga Street 12 Alga Street 8 TABLE OF TEST RESULTS (CONT.) Field Moisture o/ dry WI Dry Maximum Dry Density Density Percent lb/w ft I b/w ft Compact ion RemUrk, 13,4 111.5 119.1 93.5 10.7 110.0 118.2 93.0 9.1 111.8 118.2 94.4 10.0 113.5 119.0 19.1 102.3 111.3 95.3 91.9 14.1 107.5 114.5 93.8 13.9 105.0 111.3 94.2 13.5 105.2 112.6 93.4 15.4, 96.6 108.8 88.6 Reworked 13.7 108.2 113.6 95.3 check on #27 11.6 102.9 113.6 90.5 sto. 8+78 13.5 107.c 116.1 92.1 sta. 7+65 16.8 105.5 109.1 96.6 sta. 7+65 13.6 108.2 114.0 94.9 sta. 8+50 14.6 111.1 114.0 97.5 sto. 71-M) 14.5 109.2 119.4 91.5 sto. 7+60 14.6 103.0 109.1 94.4 sto. SW - BENTON ENGINEERING. INC - - - - - - - - - - - - - -. - - Project No. 64-6-180 Lo Costa Volley Unit Nos. 1 and 2 -17- November 25, 1964 TABLE OF TEST RESULTS Surplus Soil Area Test No. Approximate Depth Distance From of Fill Field East End of at Test Moisture Alga Rood 1 300’ E. 50’ S. 2 300’ E. 170’S, 3 200’ E. 150’ S. 4 200’E. 60’ S. 5 250’ E. 50’ 5. 6 250’ E. 160’ 5. 7 190’ E. 150’ 5. 8 250’ E. 71)‘s. 9 125’ E, 90’ S. 10 300’ E, 50’s. 11 125’ E. 100’s. 12 250’ E. 140’ 5. 13 200’ E, 60’ 5. 14 250’ E. 100’ S. 15 300’ E. 40’ S. 16 300’ E. 200’S, 17 200’ E. 100’s. 18 200’ E. 60’ S. 19 150’ E, 75’ S. in Feet % dry wt 2 15.8 2 13.6 2 11.9 2 10.7 4 15.7 4 17,2 4 17.3 4 14.9 4 17.9 6 13.6 6 15.4 6 15.9 6 17.7 6 13.6 8 21.1 8 14.1 8 17.3 8 9.6 8 19.4 Dry Density lb/w ft Maximum Dry Density Ib/cu ft Percent Compaction 103.3 110.0 93.9 107.1 114.5 93.4 105.9 114.5 92.4 104.0 114.5 90.8 108.0 119.1 90.7 105.2 110.0 95.7 103.7 114.5 90.5 111.0 119.1 93.1 102.1 113.6 90.0 107.1 114.5 93.5 105.2 114.0 92.3 105.6 114.0 92.6 101.5 111.9 90.7 105.2 115.6 90*9 99.5 108.2 92.0 110.7 123.2 90.0 107.7 119.5 90.0 108.0 119.5 90.3 102.6 113.6 90.2 BENTON ENGINEERING. INC. - - .- ” - - - - - - - - ,- - - - - Project No. 64-6-18D La Costa Volley Unit Nos. 1 ond 2 -18- November 25, 1964 LABORATORY TEST RESULTS The maximum dry densities ond optimum moisture contents of the maim fill materials OS deter- mined by the A.A.S.H.O. T99-49 method, modified to use 26 blows of o 10 pwnd hommer falling from o height of 18 inches on each of 3 layers in a 4 inch diometer l/30 cubic foot compaction cylinder, ore presented OS fallows: Soil Type Brown silty fine sand, cloy binder Light yellow grey fine sandy silt Light brown grey silty fine sand Medium brown, red brown silty fine sand Light grey slightly silty fine to coarse sand and 10% grovel Medium brown, red brown slightly silty fine to coarse sand, cloy binder, few grovel Medium brown, red brown silty fine sand Dark gioy clayey silt, lime streaks Light brown grey silty fine sand, cemented lumps Gray yellow slightly silty very fine sand (slightly micaceous) Brown, red brown silty cloy Medium brown slightly silty medium to coarse sand (few grav&l) Light brown clayey fine to medium sand (lime streaks) Yel I ow grey brown clayey fine sand (% expansion = 5.6%) Groy brown silty cloy (% expansion = 12.4%) Light brown silty fine sond with cloy binder Dark brown silty fine sand (topsoil) Yellow ton silty very fine sand Light brown silty fine sand, sea shells Light brown silty fine to medium to coarse sand Light brown, yellow brown silty fine to medium sand and chunks grey silt Light brown very fine sandy silt Dark brown silty fine to medium sand, cloy binder, few grovel Brown clayey fine to coarse sond Light yellow gray silty very fine sand Light grey fine sandy cloy Light yellow and grey clayey very fine to fine sond Maximum Optimum Mois- Dry Density ture Content I b/cu ft % dry wt 123.2 10.5 114.2 15.4 117.3 13.2 121.9 11.6 121.2 12.5 121.8 10.2 121.3 105.2 11.4 19.5 13.5 17.6 1 13.6 99.3 14.0 15.4 16.0 13.7 19.1 13.0 19.4 12.3 11.3 14.8 16.2 13.2 21.6 10.9 10.3 16.7 19.0 12.8 20.0 11.0 19.5 12.3 108.2 16.7 124.9 10.4 123.2 11.4 108.8 15.6 108.2 15.2 107.4 18.5 BENTON ENOINEERING. INC. ,- .- - .- - - - - - - - - Project No. 64-6-18D La Costa Volley Unit Nos, 1 and 2 -19- November 25, 1964 LABORATORY TEST RESULTS (CONT) Soil Type Light yellow brown very fine to fine sandy cloy Silty fine to coarse sand Yellow very fine sondy silt Olive fine sandy silt Light grey silty fine to medium sond, cloy binder Light brown to yellow brown silty fine to coarse sand Light grey silty fine sand Maximum Dry Density I b/‘cu ft Optimum Mois- ture Content % dry wt 107.9 18.1 111.9 11.7 110.0 16.5 109.1 18.5 118.2 12.8 125.2 9.8 115.8 14.7 In addition to the above loboratory tests, expansion tests were performed cn some of the clayey soils encountered to determine their volumetric change characteristics with change in moisture content. The recorded expansions of the samples ore presented OS follows: Location Depth of Sample Below Grade Percent Expansion Under Unit Lmd of 500 Pounds per Square Foot from Air Dry to Saturation Lot 5 Grade 2.99 Lot 6 - - 6.89 Lot 48 1.5 3.19 Lot 48 2.0 3.92 Lot 51 Grode 0.97 Lot 56 2.0 3.07 Lot 58 1.0 2.90 Lot 59 1.0 4.49 Lot 60 1.0 4..84 Lot 62 1.0 3.64 Lot 66 0.5 7.84 Lot 67 0.5 5.81 Lot 68 0.5 5.99 Lot 69 0.5 7.99 Lot 69 2.0-2.5 4.01 Lot 70 0.5 8.10 Lot 70 1.5-2.0 7.09 Lot 70 2.0 8.00 Lot 72 2.0 1.28 Lot 73 1.0 1.10 Lot 74 2.0 3.81 Lot 75 1.0 1.51 BENTON ENGINEERING. INC Project No. 64-6-18D -2O- La Costa Volley Unit Noz. 1 and 2 - - - - - - - - - ,- - - Location Lot 76 Lot 77 Lot 79 Lot 80 Lot 83 Lot 84 East of Lot 85 Lot 87 East of Lots 85-89 Lots 90-91 Lot 95 Lot 97 Lot 98 Lot 104 Lot 113 Lot 131 Lot 132 Lot 133 Apt. Site F Apt. Site H Apt. Site I, N.E. Comer Apt. Site I, S.E. Corner Apt. Site I, N.E. Corner Apt. Site J, S.W. Corner Apt. Site J, Center Apt. Site J, N.E. Corner Apt. Site J, N.E. Corner Apt. Site F Street Opposite Lots 103 & 104 Depth d Sample Below Grade 1.5 2.0 2.0-2.5 1.5-2.0 2.0-2.5 1 .o-2.0 1.0 1.5 1.0 -- 2.0 1 .o-2.0 2.0-3.0 Grade Grade 1.0 1 .o-2.0 1.5-2.5 2.0 2.0 2.0 1.0 1.0 1.0 1.0 1.5 2.0 2.0 - - November 25, 1964 Percent Expansion Under Unit Load of 500 Pounds per Square Foot from Air Dry to Saturation 2.33 1.52 1.25 2.64 5.49 0.91 13.25 2.39 5.54 3.30 2.30 2.89 2.86 5.82 5.73 4.59 4.12 5.86 5.42 4.03 6.23 5.91 6.62 1.88 9;69 8.32 3.92 5.42 27.09 - BENTON ENGINEERING, INC. - ._ ~~.,. v-..-; ./-~ .- - - - - - - - - ,- Project No. 64-5-18D -21- November 25, 1964 La Costa Volley Unit Nos. 1 ond 2 Samples of notural soils token from locations designated by o representative of Paradise Homes, Incarporoted, were remolded to 92 percent of maximum density and then subjected to expansion tests. The recorded expansions of the three samples ore presented as follows: ,, . . Sample Sample 1 Sample 2 Sample 3 Percent Expansion Under Unit Load of 500 Pounds per Square Soil Description Foot from Air Dry to Saturation Groy brown silty clay 13.38 Light brown silty fine sand 3.82 with cloybinder Yellow brown clayey fine sand 5.61 Finally, a groin sire analysis was performed on o sample of soil, OS designated by a representative of Paradise Homes, Incorporated fa the purpose of comparing its grain sizes with those of decomposed granite being considered for import. The results of the analysis were OS follows: Sieve No. Cumulative % at Total Passing 3/8 inch 100 No. 4 91.7 No. 10 75.9 No. 30 34.0 No. 40 23.3 No. 60 16.1 No. 100 11.0 No. 200 7.3 Based upon the above tabulated results of expansion tests, and on other previously conducted expansion tests, the following table summorizes oil of the areas covered by this report, together with other oreos OS totheir clarification with regard to expansion: Marginally Expansive Expansive Unit No. 1 - Unit No. 1 - Lots 47, 48, 49, and .52,53,54,55, and 56, 60, 72, 73, ond 74, 76, 79, 80, and 81, 84 to 89, inclusive, 93, 95, 96, 99, 100, and 101, 106, 108, 109, 110, 111, 127, 128, and 131, Condominium Areas C and D Lots 44, 45, 46, 50, 51, 57, 58, and ‘,. 59, 61 to 71, inclusive, 75, 77, ond 78, 82, 83, 90, 91, and 92, 94, 97, 98, 102 to 105, inclusive, 107, 112 to 119, inclusive, 130, 132, and 133, Male1 Lots 122 to 126, inclusive, and 129, Condominium Areos’A, 8, E, F, H, I, and J. Unit No, 2 - Lot 5 Unit No& 2 - Lots 1, 2, 3, and 6