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Home My WebLink AboutSW6221101_Soils/Geotechnical Report_20230818 Boring Designation B-1 DRILLING LOG DIVISION INSTALLATION SHEET 1 South Atlantic Division Fort Liberty(Formerly Fort Bragg) OF 2 SHEETS 1.PROJECT 9.COORDINATE SYSTEM HORIZONTAL VERTICAL PN79439.2 SHWT State Plane-North Carolina NAD83 NAVD88 10.SIZE AND TYPE OF BIT Hollow Stem Auger 2-1/4" 2.HOLE NUMBER LOCATION COORDINATES 11.MANUFACTURERS DESIGNATION OF DRILL B-1 N 486244.428 E 1989877.442 Diedrich D70 3.DRILLING AGENCY 12.TOTAL SAMPLES DISTURBED UNDISTURBED Corps of Engineers- CESAS 8 0 4.NAME OF DRILLER 13.TOTAL NUMBER CORE BOXES 0 Kaleb Graffagnino • • 14.DEPTH GROUND WATER See Remarks 5.DIRECTION OF BORING DEG FROM BEARING ®VERTICAL VERTICAL STARTED COMPLETED n INCLINED --- 15.DATE BORING 7/22/23 7/22/23 6.THICKNESS OF OVERBURDEN >35' 16.ELEVATION TOP OF BORING 261' 7.DEPTH DRILLED INTO ROCK 17.TOTAL CORE RECOVERY FOR BORING N/A 18.SIGNATURE AND TITLE OF INSPECTOR 8.TOTAL DEPTH OF BORING 35' Colby Brown, Geologist 0 0 ELEV DEPTH 161 FIELD CLASSIFICATION OF MATERIALS % a 0 REMARKS 3 U 0 (Description) REC IN38 o CO Z 0 4 , ''/"�\Topsoil(Approximately 5 inches). ` 15 - 0 , • POORLY GRADED SAND(SP),dry, medium dense, 33 s-1 6 16 _ • fine to coarse sand,yellow. - 2.5 , SILTY SAND(SM),dry, loose,moslty fine to medium sand,little silt,yellow brown. 2 87 s-2 2 5 _ 5 - 3 3 100 S-3 4 10 — 10 6 - 14.0 • POORLY GRADED SAND(SP),dry,dense to loose, 14 • fine to medium sand,yellow red. 100 s a 19 37 — 15 • • • • • • • 4 • , 100 s-5 6 16 — 20 • • 10 • • • • • • Moist,trace clay,gray. 6 • 100 S-6 6 9 — 25 3 • • • • • • • 2 • , 100 8-7 6 14 8 _ 30 • • • • • 2 -35.0 " • 100 S-8 24 16 _ SAS FORM 1836-A BOTTOM OF BOREHOLE AT 35.0 ft Boring Designation B-1 — 35 FEB 08 SHEET 1 of 2 Boring Designation B-1 INSTALLATION DRILLING LOG (Cont Sheet) Fortt Liberty(Formerly Fort Bragg) OF of2 2 2 SHEETS PROJECT COORDINATE SYSTEM HORIZONTAL VERTICAL PN79439.2 SHWT State Plane NAD83 NAVD88 LOCATION COORDINATES ELEVATION TOP OF BORING N 486244.428 E 1989877.442 0 o N ELEV DEPTH FIELD CLASSIFICATION OF MATERIALS REC E o REMARKS o Ln j J (Description) cc m' z Notes: Water Level Data 1. Soils visually classified in accordance with ASTM D2488. Reading Date Depth Notes 2. N-Value:Total blows over last 1.0 foot of 1.5-foot 24 hours 7/23/2023 31.8 ft Open hole driven interval,unless otherwise indicated,using a 1 After drilling 7/22/2023 31 ft Open hole 3/8-inch ID splitspoon with 140-pound hammer falling After drilling 7/22/2023 24.5 ft Proposed seasonal high 30 inches.. 3. Component percentages: Mostly-50-100%; Approximate SHWT Elevation 236.5 ft Some-30-45%; Little-15-25%; Few-5-10%;Trace- <5%. SAS FORM 1836-A Boring Designation B-1 SHEET 2 of 2 FEB 08 Boring Designation B-3 DRILLING LOG DIVISION INSTALLATION SHEET 1 South Atlantic Division Fort Liberty(Formerly Fort Bragg) OF 2 SHEETS 1.PROJECT 9.COORDINATE SYSTEM HORIZONTAL VERTICAL PN79439.2 SHWT State Plane-North Carolina NAD83 NAVD88 10.SIZE AND TYPE OF BIT Hollow Stem Auger 2-1/4" 2.HOLE NUMBER LOCATION COORDINATES 11.MANUFACTURERS DESIGNATION OF DRILL B-3 N 486230.792 E 1989593.448 Diedrich D70 3.DRILLING AGENCY 12.TOTAL SAMPLES DISTURBED UNDISTURBED Corps of Engineers- CESAS 8 0 4.NAME OF DRILLER 13.TOTAL NUMBER CORE BOXES 0 Kaleb Graffagnino • • 14.DEPTH GROUND WATER See Remarks 5.DIRECTION OF BORING DEG FROM BEARING ®VERTICAL VERTICAL STARTED COMPLETED n INCLINED --- 15.DATE BORING 7/22/23 7/22/23 6.THICKNESS OF OVERBURDEN >35' 16.ELEVATION TOP OF BORING 267' 7.DEPTH DRILLED INTO ROCK 17.TOTAL CORE RECOVERY FOR BORING N/A 18.SIGNATURE AND TITLE OF INSPECTOR 8.TOTAL DEPTH OF BORING 35' Colby Brown, Geologist 0 0 cv ELEV DEPTH w FIELD CLASSIFICATION OF MATERIALS % z 0 REMARKS 3 v? a 0 J (Description) REC IN38 0-a" m o Z co '-=... Topsoil. 2 0 1.0 100 s-1 5 11 _ • POORLY GRADED SAND(SP), moist, medium 6 - 2.5 ' • dense,fine sand, light yellow brown. - . POORLY GRADED SAND WITH SILT(SP-SM), - , > moist,loose,mostly fine sand,few silt, brown. - 1 - 5.0 100 S-2 2 7 — 5 . , SILTY SAND(SM),dry, loose,mostly fine to medium 5 sand,little silt, red. - - 8.0 . POORLY GRADED SAND WITH SILT(SP-SM),dry, - > medium dense, mostly fine to medium sand,few silt, 4 • yellow red. 100 S-3 6 15 — 10 • 9 0 - 12.0 _" - • POORLY GRADED SAND(SP),dry, medium dense, - • fine to coarse sand,gray.• - • 5 - 15.0 100 S-4 6 13 — 15 / POORLY GRADED SAND WITH CLAY(SP-SC), 7 moist,loose to medium dense,fine sand,few clay, - gray. _ // 1 °// 73 s-s a 7 — 20 3 o / // / 2 ey 87 s-s 3 7 — 25 4 / e y / 4 100 S-7 5 13 — 30 8 / ey / / 3 -35.0 % 100 s-8 10 17 _ SAS FORM 1836-A BOTTOM OF BOREHOLE AT 35.0 ft Boring Designation B-3 — 35 FEB 08 SHEET 1 of 2 Boring Designation B-3 INSTALLATION DRILLING LOG (Cont Sheet) Fortt Liberty(Formerly Fort Bragg) OF of 2 2 2 SHEETS PROJECT COORDINATE SYSTEM HORIZONTAL VERTICAL PN79439.2 SHWT State Plane NAD83 NAVD88 LOCATION COORDINATES ELEVATION TOP OF BORING N 486230.792 E 1989593.448 0 0 ELEV DEPTH FIELD CLASSIFICATION OF MATERIALS REC E o REMARKS o j J (Description) m Fa(Description) Notes: Water Level Data 1. Soils visually classified in accordance with ASTM Reading Date Depth Notes D2488. After drilling7/22/2023 2. N-Value:Total blows over last 1.0 foot of 1.5-foot 20 ft Proposed seasonal high driven interval,unless otherwise indicated,using a 1 After drilling 7/22/2023 NA Dry 3/8-inch ID splitspoon with 140-pound hammer falling 30 inches.. Approximate SHWT Elevation 247.0 ft 3. Component percentages: Mostly-50-100%; Some-30-45%; Little-15-25%; Few-5-10%;Trace- <5%. SAS FORM 1836-A Boring Designation B-3 SHEET 2 of 2 FEB 08