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Home My WebLink AboutNC0003433_Cape Fear GeoSyntec Boring Logs Wells & PZs_20150902APPENDIX 2.A2 Boring Logs Legend for Soil Classification Symbols Pattern Description SP — poorly graded sands SW — well graded .�. sands -; GP — poorly graded ■�■ gravels GW — well graded gravels SM — silty sands MH — elastic silts ML — inorganic silts with slight plasticity SC — clayey sands CL — lean clays CH — fat clays Unconsolidated Weathered Rock Consolidated Weathered Rock Roadbed Material Bentonite Grout Well Screen PVC Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE ID: MW-9 GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Sonic PROJECT NO: GC5369 RIG TYPE: Geoprobe Track Mounted (Serial #1427) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 6" BORING DATE: 8/26/2013 SAMPLING METHOD: Sonic core GEOSYNTEC REPRESENTATIVE: Rachel Donahue NORTHING: 668145.92 DRILLING CONTRACTOR: Cascade EASTING: 1990530.98 DRILLER NAME: Richard Mooney GROUND ELEVATION: 189.47 Elev. Depth E (ft msp (ft) Lithologic Description a? � Well Construction Details 'oo Comments 185 180 175 170 -5 -10 -15 -20 Light reddish brown clayey SILT with trace sand and trace organics (roots), moist, some plasticity; CL Same as above, dry Reddish brown silty CLAY, trace sand, trace organics, saturated, some plasticity; CL Reddish brown partially WEATHERED ROCK in a silty sand matrix, plastic, dry; PWR/SM Reddish brown partially WEATHERED ROCK in a silty sand matrix, some shale (pebble to cobble), saturated; PWR/SM Same as above, dry Gray MUDSTONE interlayed with gray clay, plastic, 45 degree fracture plane with iron staining = = = _ 3.7' Collected SS-MW9(9.0-9.5)- 20130826 from 9.0 to 9.5 ft bgs O:7: o O� o... off.:. oo.:. O� o . o off... off.:. oo.:. O 6.6' = _ •.•.' .".'. ;■;■; ,',", "■'■'■■` ... ".'. .■.. ;■;■; V.. 5 7' — 5.0 All depths referenced to ground surface. Page 1 of 1 Total Depth: 20ftbgs Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE ID: MW-10 GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Sonic PROJECT NO: GC5369 RIG TYPE: Geoprobe Track Mounted (Serial #1427) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 6" BORING DATE: 8/22/2013 SAMPLING METHOD: Sonic core GEOSYNTEC REPRESENTATIVE: Rachel Donahue NORTHING: 672859.32 DRILLING CONTRACTOR: Cascade EASTING: 1985066.88 DRILLER NAME: Richard Mooney GROUND ELEVATION: 171.00 Elev. Depth E (ft msp (ft) Lithologic Description a? � Well Construction Details 'oo Comments 170 1F.&I IBM 155 -5 -10 -15 -20 _ = 2.7' Fine reddish brown SAND, poorly sorted, low moisture, trace organics (roots); SM = _ O: o o o O� O-x o o 4.8' o.:. o::.: ...o.:. o::: ox... off... ox... off... Fine reddish brown SAND with trace clay, low* Collected SS-MW10(9.0-9.5)- 20130819 from 9.0 to 9.5 ft bgs plasticity, low moisture; SM .. .. = .. Reddish brown sandy CLAY, plastic, moist; CH Very fine gray sandy CLAY, plastic, saturated; CH •.'.' ., No recovery "■"■"■■` ... 0.0 All depths referenced to ground surface. Page 1 of 1 Total Depth: 20 ft bgs Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE ID: MW-11 GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Sonic PROJECT NO: GC5369 RIG TYPE: Geoprobe Track Mounted (Serial #1427) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 6" BORING DATE: 8/19/2013 SAMPLING METHOD: Sonic core GEOSYNTEC REPRESENTATIVE: Rachel Donahue NORTHING: 671309.45 DRILLING CONTRACTOR: Cascade EASTING: 1986220.0 DRILLER NAME: Richard Mooney GROUND ELEVATION: 172.29 Elev. Depth E (ft msp (ft) Lithologic Description a? � Well Construction Details 'oo Comments 170 165 ` -9] 155 -5 -10 -15 -20 — 2.0' Grayish brown CLAY; CH 0::: bx: 0� 0 Grayish brown gravelly brown CLAY, 10% gravel, 40% silt, 50% clay, plastic; CH o.:. o... o.:. o... 3.0' Same as above with trace wood fragments, very moistO'O' off... off... O� O O� O Collected SS-MW11(8.5-9.0)- "■'' .,*. "■■ .. Gray CLAY with wood fragments, plastic; CH =.*_ 20130819 from 8.5 to 9.0 ft bgs Brown CLAY with wood fragments, plastic; CH ... .. 5.0' Reddish brown clayey SAND, gray mottling, saturated; SM ;;;;; ... ... Collected SS-MW11(11.0-11.5)- 20130819 from 11.0 to 11.5 ft bgs Reddish brown silty SAND, dark brown mottling, saturated; SM r ■ "■'■'■■` ■■*• �*rxa 5.0 Reddish brown clayey SAND with gray mottling; =.. . SM All depths referenced to ground surface. Page 1 of 1 Total Depth: 20 ft bgs Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE ID: MW-12 GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Sonic PROJECT NO: GC5369 RIG TYPE: Geoprobe Track Mounted (Serial #1427) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 6" BORING DATE: 8/23/2013 SAMPLING METHOD: Sonic core GEOSYNTEC REPRESENTATIVE: Rachel Donahue NORTHING: 667647.87 DRILLING CONTRACTOR: Cascade EASTING: 1987859.05 DRILLER NAME: Rachel Donahue GROUND ELEVATION: 168.04 Elev. Depth E (ft msp (ft) Lithologic Description a? � Well Construction Details 'oo Comments 165 -5 160 -1 155 -1 150 Dark brown clayey SILT with trace organics (roots) and trace pebbles, saturated; ML Reddish brown CLAY, dry, moderately plastic; CH Reddish brown CLAY, saturated, plastic; CH Mottled reddish brown and gray CLAY, plastic, moist; CH Same as above, saturated Coarse reddish brown SAND: SW _ = 5.3' off... off... off... off... 6.5' A-x � O q� O O0 O O� O __ = Collected SS-MW12(7.0-7.5)- __ 20130823 and SS-MW129(7.0- 7.5)20130823 from 9.0 to 9.5 ft bgs ... ... .. . .. .. 6.0' 2.0' All depths referenced to ground surface. Page 1 of 1 Total Depth: 20 ft bgs Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE ID: MW-13 GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Sonic PROJECT NO: GC5369 RIG TYPE: Geoprobe Track Mounted (Serial #1427) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 6" BORING DATE: 8/23/2013 SAMPLING METHOD: Sonic core GEOSYNTEC REPRESENTATIVE: Rachel Donahue NORTHING: 666832.07 DRILLING CONTRACTOR: Cascade EASTING: 1985630.18 DRILLER NAME: Richard Mooney GROUND ELEVATION: 169.15 Elev. Depth E (ft msp (ft) Lithologic Description a? � Well Construction Details 'oo Comments 165 160 155 150 -5 -10 -15 -20 Mottled reddish brown and gray silty CLAY with = = 3.0' trace organcis (roots) and saprolite, moderately plastic, dry; CL = _ O:7: O O OP off... off... o... off... 6.0' A� q� Same as above, compacted o o-x o o Collected SS-MW13(8.5-9.0)- "■'' "■■ 20130823 and SS-MW139(8.5- .. .. '.." .*. . 9.0)-20130823 from 8.5 to 9.0 ft bgs 5 8' Reddish brown CLAY with trace fine sand, plastic, moist; CH .*,. .. Reddish brown very fine sandy CLAY, plastic, _■ ■■ saturated; CH "V .'. Reddish brown CLAY, plastic, saturated; CH"""" 5.5' Reddish brown very fine sandy CLAY, plastic, saturated; CHI•" *' All depths referenced to ground surface. Page 1 of 1 Total Depth: 20ftbgs io; I ir�'rna ,r�zot. Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE ID: MW-14 GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Sonic PROJECT NO: GC5369 RIG TYPE: Geoprobe Track Mounted (Serial #1427) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 6" BORING DATE: 812012013-812112013 SAMPLING METHOD: Sonic core GEOSYNTEC REPRESENTATIVE: Rachel Donahue NORTHING: 668865 DRILLING CONTRACTOR: Cascade EASTING: 1984751.85 DRILLER NAME: Richard Mooney GROUND ELEVATION: 167.8 Elev. Depth E (ft msp (ft) Lithologic Description a? � Well Construction Details 'oo Comments 165 160 155 150 -5 -10 -15 -20 Reddish brown clayey SILT with trace sand and — — 1.0 some organics (roots), some plasticity, moist; ML = _ ob... off... off... off... oo.:. oo.:. Fine reddish brown SAND with trace silt and trace 0:: -5:c 0 00 4.5 organics (roots), dry; SP O-5: O O-5: O 0'. 5- O o::: Collected SS-MW14 7.0-7.5 ( ) Gray CLAY, plastic, moist; CH : 5-5:c 57:c 20130820 from 7.0 to 7.5 ft bgs off... off... off... off... 0... 0.,. Collected SS-MW14(9.5-10.0)- 5.5:c 5.5:c 20130820 from 9.5 to 10.0 ft bgs oo` oo' 4.5 off... off... Gray sandy CLAY, plastic, moist; CH ...o.:. 0::: o.;. 0::: O0 O0 Reddish brown sandy CLAY, moderate plasticity, oo.:. moist; CH oo.:. oo.:. oo` oo' 6.0 Mottled reddish brown and gray sandy CLAY, 0.:. 0.:. plastic, dry; CH .o... 0::: o.,. o::: 00 O0 O� O off... off... off... off... off... 0.5: off... off... .I All depths referenced to ground surface. Page 1 of 4 Total Depth: 80 ft bgs a 7 i4 i rn, t.`t'; I i t"113u''aSti aT Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE ID: MW-14 GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Sonic PROJECT NO: GC5369 RIG TYPE: Geoprobe Track Mounted (Serial #1427) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 6" BORING DATE: 812012013-812112013 SAMPLING METHOD: Sonic core GEOSYNTEC REPRESENTATIVE: Rachel Donahue NORTHING: 668865 DRILLING CONTRACTOR: Cascade EASTING: 1984751.85 DRILLER NAME: Richard Mooney GROUND ELEVATION: 167.8 Elev. Depth E (ft msp (ft) Lithologic Description a? � Well Construction Details 'oo Comments 145 IF 140 135 130 Coarse gray clayey SAND, moderate plasticity, o:" . o.. 0::: C) o.:. 0::: 6.0 moist; SC _ Coarse gray SAND with abundant partially oo... weathered rock from pebble to cobbles; SM/PWR 0::: 0::: O� o 0.:. ... 0.. o::: 0.:. o::: ...0.'. o::: o::: Gray MUDSTONE (shale), friable, dry Gray partially WEATHERED ROCK in a silty sand matrix, nonfriable, moderately plastic, moist; PWR/SM Gray MUDSTONE, friable, dry Dark gray MUDSTONE, uniform, nonfriable Gray partially WEATHERED ROCK in a silty sand matrix, friable, moderately plastic, moist; PWR/SM 5.5 Temporary outer casing was set at 28 ft bgs All depths referenced to ground surface. Page 2 of 4 Total Depth: 80 ft bgs a 7 i n, t't'; I I I"Il lu"asti?T 4; Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE ID: MW-14 GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Sonic PROJECT NO: GC5369 RIG TYPE: Geoprobe Track Mounted (Serial #1427) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 6" BORING DATE: 812012013-812112013 SAMPLING METHOD: Sonic core GEOSYNTEC REPRESENTATIVE: Rachel Donahue NORTHING: 668865 DRILLING CONTRACTOR: Cascade EASTING: 1984751.85 DRILLER NAME: Richard Mooney GROUND ELEVATION: 167.8 Elev. Depth E (ft msp (ft) Lithologic Description a? � Well Construction Details 'oo Comments Reddish brown and gray partially WEATHERED ROCK in a silty sand matrix, very compact, moist; PWR/SM 125 Dark gray partially WEATHERED ROCK in a silty sand matrix, friable, moist; PWR/SM Dark gray partially WEATHERED ROCK in a silty sand matrix, nonfriable, moist; PWR/SM 120 Dark gray MUDSTONE, dense, massive, nonfriable 115 110 7.0 All depths referenced to ground surface. Page 3 of 4 Total Depth: 80 ft bgs a c i >i I i O'n0 ,rr,''p t. ti; Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE ID: MW-14 GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Sonic PROJECT NO: GC5369 RIG TYPE: Geoprobe Track Mounted (Serial #1427) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 6" BORING DATE: 812012013-812112013 SAMPLING METHOD: Sonic core GEOSYNTEC REPRESENTATIVE: Rachel Donahue NORTHING: 668865 DRILLING CONTRACTOR: Cascade EASTING: 1984751.85 DRILLER NAME: Richard Mooney GROUND ELEVATION: 167.8 Elev. Depth E (ft msp (ft) Lithologic Description a? � Well Construction Details 'oo Comments 105 100 95 .N All depths referenced to ground surface. Page 4 of 4 Total Depth: 80 ft bgs Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE IDPZ-61BH-10 (within the 1985 Pond) GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Rotary Wash PROJECT NO: GC5369 RIG TYPE: CME 45B Track Rig (Serial # 221904) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 3.5" BORING DATE: 812112013 SAMPLING METHOD: SPT with split spoon GEOSYNTEC REPRESENTATIVE: Weston Shin NORTHING: 669636.42 DRILLING CONTRACTOR: Mid -Atlantic Drilling EASTING: 1988199.42 DRILLER NAME: William M. Wiggins GROUND ELEVATION: 195.92 ft msl Elev. (ft msl) Depth (ft) Lithologic Description E 2 Piezometer Construction o Comments a Details 0 I&ON -5 Wee -10 IF-M -15 U-9] Loose; black; SILT; moist; ML (Ash) Loose; black; sandy SILT; moist to wet; ML (Ash) Very loose; black; fine to medium sandy SILT; moist to wet; ML (Ash) Very loose; black; fine to medium SAND with silt; wet; stiffer at the top; wood chips at 8.5 ft bgs; SP- SM (Ash) No sample recovery Very loose; black; sandy SILT; wet; ML (Ash) — — — — — — — — — — Shelby Tube (11.0 - 13.0 ft bgs) 1.4' 1.2' 1.2' 0.9' 2.0' None 0.6' All depths referenced to ground surface. Page 1 of 3 Total Depth: 43 ft bgs Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE IDPZ-61BH-10 (within the 1985 Pond) GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Rotary Wash PROJECT NO: GC5369 RIG TYPE: CME 45B Track Rig (Serial # 221904) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 3.5" BORING DATE: 812112013 SAMPLING METHOD: SPT with split spoon GEOSYNTEC REPRESENTATIVE: Weston Shin NORTHING: 669636.42 DRILLING CONTRACTOR: Mid -Atlantic Drilling EASTING: 1988199.42 DRILLER NAME: William M. Wiggins GROUND ELEVATION: 195.92 ft msl Elev. (ft msl) Depth (ft) Lithologic Description E 2 Piezometer Construction o Comments a Details 0 -20 175 170 165 160 Very loose; black; SILT; wet; ML (Ash) No sample recovery Very loose; dark gray; SILT; wet; ML (Ash) Very loose; dark gray; SILT; wet; ML (Ash) Medium dense; brown; silty fine to medium SAND; SM (Soil) Loose; brown; silty fine to medium SAND; SM 1.5' None 1.7' 1.4' 1.0' 1.1' Environmental Sampling: SS-PZ6(30-31.5)20130821 Environmental Sampling: SS-PZ6(41-43)20130821 All depths referenced to ground surface. Page 2 of 3 Total Depth: 43 ft bgs 4' Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE IDPZ-61BH-10 (within the 1985 Pond) GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Rotary Wash PROJECT NO: GC5369 RIG TYPE: CME 45B Track Rig (Serial # 221904) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 3.5" BORING DATE: 812112013 SAMPLING METHOD: SPT with split spoon GEOSYNTEC REPRESENTATIVE: Weston Shin NORTHING: 669636.42 DRILLING CONTRACTOR: Mid -Atlantic Drilling EASTING: 1988199.42 DRILLER NAME: William M. Wiggins GROUND ELEVATION: 195.92 ft msl Elev. (ft msl) Depth (ft) Lithologic Description E 2 Piezometer Construction o Comments a Details -40 155 Loose; brown; silty fine to medium SAND; SM All depths referenced to ground surface. Boring terminated at 43 ft bgs. Piezometer PZ-6 installed after completion of boring about 15 ft 1.5' from BH-10. Screened depth from _ — 23.0 - 33.0 ft bgs. Page 3 of 3 Total Depth: 43 ft bgs Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE IDPZ-71BH-5 (within the 1970 Pond) GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Continuous SPTs and Rotary Wash PROJECT NO: GC5369 RIG TYPE: CME 45B Track Rig (Serial # 221904) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 3.5" BORING DATE: 8/16/2013 SAMPLING METHOD: SPT with split spoon GEOSYNTEC REPRESENTATIVE: Weston Shin NORTHING: 668345.67 DRILLING CONTRACTOR: Mid -Atlantic Drilling EASTING: 1985623.89 DRILLER NAME: William M. Wiggins GROUND ELEVATION: 187.57 ft msl Elev. (ft msl) Depth (ft) Lithologic Description E 2 Piezometer Construction o Comments a Details 185 -_ -_ Shelby Tube (3.0 - 5.0 ft bgs) 0.5' sampling unsuccessful -5 1.95' SILT; ML (Ash) — — Shelby Tube (5.0 - 7.0 ft bgs) 180 Very loose; black; SILT; moist; ML (Ash) .".". 0.4' Top 0.7 ft: Very loose; black; fine sandy SILT; ■; ■;■ 1.5' moist to wet; ML (Ash) ■ ;_; -10 Bottom 0.8 ft: Very loose; black; silty fine to medium SAND; moist to wet; SM (Ash) .". • .". Very loose; black; fine to medium sandy SILT; ;■ ;•; 1.2' wet; ML (Ash) ■;■ ■;■ 175 ` Very loose; black; SILT with sand; wet; ML (Ash)■■ 1.2' -15 1.2' Very loose; black; silty fine SAND to fine sandy '." ".` SILT; wet; SM/ML (Ash) .. 170 Very loose; black; SILT with sand; wet; ML (Ash) '.' •, ',' •• 2.0' Environmental Sampling: _ SS-PZ7(17-19)20130816 VA 1.5' Very soft; green/gray; fat CLAY; moist to wet; CH == (Soil) ==- All depths referenced to ground surface. Page 1 of 2 Total Depth: 25 ft bgs Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE IDPZ-71BH-5 (within the 1970 Pond) GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Continuous SPTs and Rotary Wash PROJECT NO: GC5369 RIG TYPE: CME 45B Track Rig (Serial # 221904) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 3.5" BORING DATE: 8/16/2013 SAMPLING METHOD: SPT with split spoon GEOSYNTEC REPRESENTATIVE: Weston Shin NORTHING: 668345.67 DRILLING CONTRACTOR: Mid -Atlantic Drilling EASTING: 1985623.89 DRILLER NAME: William M. Wiggins GROUND ELEVATION: 187.57 ft msl Elev. (ft msl) Depth (ft) Lithologic Description E 2 Piezometer Construction o Comments a Details -20 165 Started using drilling fluid at 21 ft bgs Soft; brown/gray; lean CLAY; moist; CL = = — 2 0 Environmental Sampling: P g: SS-PZ7(21-23)20130816 Boring terminated at 25 ft bgs Stiff; brown/gray; lean CLAY; moist; occasional = 2 0, Piezometer PZ-7 installed after wood chips and cable; CL = _ = completion of boring. Screened depth from 8.0 - 18.0 ft bgs. All depths referenced to ground surface. Page 2 of 2 Total Depth: 25 ft bgs Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE IDPZ-8/BH-6A (within the 1963 Pond) GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Continuous SPTs PROJECT NO: GC5369 RIG TYPE: CME 45B Track Rig (Serial # 221904) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 3.5" BORING DATE: 811512013 SAMPLING METHOD: SPT with split spoon GEOSYNTEC REPRESENTATIVE: Weston Shin NORTHING: 669440.74 DRILLING CONTRACTOR: Mid -Atlantic Drilling EASTING: 1985252.75 DRILLER NAME: William M. Wiggins GROUND ELEVATION: 192.85 Elev. (ft msl) Depth (ft) Lithologic Description E 2 Piezometer Construction o Comments a Details -_ -_ No drilling fluid was used during — — boring BH-6A. 190 -5 Refer to the BH-6 Log for Lithologic Description 185 — — -10 180 ■"■" No sampling down to a depth of 14 ft bgs 1.2' Very loose; gray; sandy SILT; wet; ML (Ash) ;*: -15 ., Depths between 14 and 23 ft bgs should be considered approximate ■" "■" due to an incorrect depth 0.5' Very loose; gray; silty fine to medium SAND; wet; "." ". measurement during drilling. SM (Ash)" 175 '■' "■" "■" Environmental Sampling: SS-PZ8(17-18)20130815 All depths referenced to ground surface. Page 1 of 2 Total Depth: 23.5 ft bgs Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE IDPZ-8/BH-6A (within the 1963 Pond) GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Continuous SPTs PROJECT NO: GC5369 RIG TYPE: CME 45B Track Rig (Serial # 221904) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 3.5" BORING DATE: 811512013 SAMPLING METHOD: SPT with split spoon GEOSYNTEC REPRESENTATIVE: Weston Shin NORTHING: 669440.74 DRILLING CONTRACTOR: Mid -Atlantic Drilling EASTING: 1985252.75 DRILLER NAME: William M. Wiggins GROUND ELEVATION: 192.85 Elev. (ft msl) Depth (ft) Lithologic Description E 2 Piezometer Construction o Comments a Details 0 -20 170 Top 0.2 ft: Medium dense; gray; silty fine to ■;= Environmental Sampling: medium SAND; wet; SM (Ash) •, _.•, SS-PZ8(22-23 )20130815 Bottom 0.8 ft: Very stiff; brown; lean CLAY; dry to — � — 1.o' Boring terminated at 23.5 ft bgs moist; CL (Soil) Piezometer PZ-8 installed after completion of boring. Screened depth from 11.0 - 21.0 ft bgs. Very hard; brown; lean CLAY; dry to moist; CL = _ (Soil) — — 0.5' All depths referenced to ground surface. Page 2 of 2 Total Depth: 23.5 ft bgs a r ;i _. t I i ro II3 Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE IDPZ-91BH-7 (within the 1978 Pond) GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Continuous SPTs and Rotary Wash PROJECT NO: GC5369 RIG TYPE: CME 45B Track Rig (Serial # 221904) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 3.5" BORING DATE: 811512013 SAMPLING METHOD: SPT with split spoon GEOSYNTEC REPRESENTATIVE: Weston Shin NORTHING: 668894.95 DRILLING CONTRACTOR: Mid -Atlantic Drilling EASTING: 1985735.69 DRILLER NAME: William M. Wiggins GROUND ELEVATION: 190.82 ft msl Elev. (ft msl) Depth (ft) Lithologic Description E 2 Piezometer Construction o Comments a Details 190 Shelby Tube (3.0 - 4.2 ft bgs). The 1.2' —_ —_ top of the Shelby Tube sample was ash; but the bottom of the Shelby Tube sample was soil. -5 1.8' Stiff; reddish brown (occasionally white); silty — —_ 185 CLAY with gravel; moist; CH Medium dense; brown; clayey SAND; moist; moist :: ■;■ ■■ 2.0' to wet at 9 ft bgs; some ash at 7 ft bgs; SC Medium dense; brown; clayey fine to medium ■;■ _■ 1 7' 180 -10 SAND; moist to wet; ash at 9.5 ft bgs; SC ., .. ■ ■ • • .. .. ■ ■ •; Environmental Sampling: SS-PZ9(9-11)20130815 1.0' Stiff; brown (occasionally pink); silty CLAY; moist; .". .`. wet at top of sample; CH Very stiff; brown (occasionally dark pink); elastic „. ■■ 1.5' SILT; moist; M H ■"■ • ■ -15 Hard; brown (occasionally dark pink); fat CLAY;_" .". .'. 0.8' 175 moist; CH ■ * ■■ Hard; brown (occasionally dark pink); fat CLAY;■; ;■; 0.25' moist; CH .". .;. .. .. Started using drilling fluid at 19 ft bgs All depths referenced to ground surface. Page 1 of 2 Total Depth: 25 ft bgs Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE IDPZ-91BH-7 (within the 1978 Pond) GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Continuous SPTs and Rotary Wash PROJECT NO: GC5369 RIG TYPE: CME 45B Track Rig (Serial # 221904) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 3.5" BORING DATE: 811512013 SAMPLING METHOD: SPT with split spoon GEOSYNTEC REPRESENTATIVE: Weston Shin NORTHING: 668894.95 DRILLING CONTRACTOR: Mid -Atlantic Drilling EASTING: 1985735.69 DRILLER NAME: William M. Wiggins GROUND ELEVATION: 190.82 ft msl Elev. (ft msl) Depth (ft) Lithologic Description E 2 Piezometer Construction o Comments a Details -20 170 Very stiff; brown/gray; silty CLAY; moist; CL All depths referenced to ground surface. 1.5' Boring terminated at 25 ft bgs. Piezometer PZ-9 installed after completion of boring. Screened depth from 12.0 - 22.0 ft bgs. Page 2 of 2 Total Depth: 25 ft bgs a r ;i _. t I i ro I ,r ,' -. Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE IDPZ-10/BH-2 (within the 1956 Pond) GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Continuous SPTs and Rotary Wash PROJECT NO: GC5369 RIG TYPE: CME 45B Track Rig (Serial # 221904) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 3.5" BORING DATE: 8/19/2013 SAMPLING METHOD: SPT with split spoon GEOSYNTEC REPRESENTATIVE: Weston Shin NORTHING: 1984979.18 DRILLING CONTRACTOR: Mid -Atlantic Drilling EASTING: 672333.44 DRILLER NAME: William M. Wiggins GROUND ELEVATION: 183.32 ft msl Elev. (ft msl) Depth (ft) Lithologic Description E 2 Piezometer Construction o Comments a Details 180 Gray; SILT; ML (Ash) Shelby Tube (3.0 to 4.9 ft bgs) 1.9' -5 Very loose; gray; SILT; moist; ML (Ash) — — 1.3 Loose; gray; SILT; moist; ML (Ash) 2.0' 175; Loose; gray; SILT; moist; ML (Ash) 1.5' -10 " Loose; gray; SILT; moist; ML (Ash) ;■; `■" 1.3' 170 Very loose; gray; fine sandy SILT to silty fine ■ ;■; 1.5' SAND; moist; MUSM (Ash) ." -15 1.3' Very loose; gray; fine sandy SILT; moist (wet at 16 ft bgs); ML (Ash) '.' ;; ".' ;; Rod was dry for 16 ft Environmental Sampling: SS-PZ10(15-17)20130819 Top: Very loose; gray; fine to medium SAND with •' 1.5' silt; moist; SP-SM (Ash) ;■; ;■; 165 Bottom: Soft; brown; CLAY; moist; CL (Soil) Soft; brown; fat CLAY with fine sand; moist; CH N==- .6' ro (Soil) All depths referenced to ground surface. Page 1 of 2 Total Depth: 35 ft bgs Geosyntec",1300 South Mint Street Suite 110 consultants Charlotte, NC 28203 BORING LOG BOREHOLE IDPZ-10/BH-2 (within the 1956 Pond) GENERAL INFORMATION TECHNICAL INFORMATION PROJECT NAME:Cape Fear Steam Electric Plant DRILLING METHOD: Continuous SPTs and Rotary Wash PROJECT NO: GC5369 RIG TYPE: CME 45B Track Rig (Serial # 221904) SITE LOCATION: Moncure, North Carolina BOREHOLE DIA: 3.5" BORING DATE: 8/19/2013 SAMPLING METHOD: SPT with split spoon GEOSYNTEC REPRESENTATIVE: Weston Shin NORTHING: 1984979.18 DRILLING CONTRACTOR: Mid -Atlantic Drilling EASTING: 672333.44 DRILLER NAME: William M. Wiggins GROUND ELEVATION: 183.32 ft msl Elev. (ft msl) Depth (ft) Lithologic Description E 2 Piezometer Construction o Comments a Details -20 Loose; brown; silty fine to medium SAND to fine to medium sandy SILT; wet; SM/ML 160 Loose; brown; silty fine to medium SAND; wet; SM -25 Loose; brown; silty fine to medium SAND; wet; SM 155 Dense; gray; sandy GRAVEL; wet; GP -30 150 Loose; brown; sandy GRAVEL; wet; GP 1.3' 2.0' 1.5' 0.8' 1.0' Environmental Sampling: SS-PZ 10(23-25)20130819 Started using drilling fluid Boring terminated at 35 ft bgs. Piezometer PZ-10 installed after completion of boring. Screened depth from 8.0 - 18.0 ft bgs. All depths referenced to ground surface. Page 2 of 2 Total Depth: 35 ft bgs 4'