A u a h i S t . B-20 K e a w e S t . F o r r e s t A v e. Ala Moana W a r d A v e n u e C o r a l S t . WWPS C o o k e S t . A u a h i S t r e e t Existing FMs P i i k o i S t r e e t SHAFT A l a M o a n a B l v d. A l a M o a n a S h o p p i n g PROJECT I l a l o S t r e e t DOWNSTREAM K a m a k e e S t r e e t C e n t e r END POINT B-16 INV = -83.00 A t k i n s o n D r i v e (APPROXIMATE) Moana Park B-18 WWPS University of Hawaii K o u l a S t . A l a M o a n a B l v d. School of Medicine Existing 72" Sewer OW-3 NON 6-(F) PARK B-23 O h e S t . K e w a l o A l a M o a n a B e a c h P a r k B a s i n B-19 B-21 B-17 SHAFT SHAFT PROJECT UPSTREAM (DROP STRUCTURE PROPOSED TRUNK END POINT SHAFT SEWER ALIGNMENT INV = -41.2 A h u i S t r e e t (DROP STRUCTURE (APPROXIMATE) A l a W a i B o a t H o n o l u l u H a r b o r H a r b o r CONCEPTUAL 10 FT. DIAMETER TRUNK SEWER ALIGNMENT N LOCATION MAP 0 100 500 1000 ALA MOANA - KAKAAKO TRUNK SEWER PROJECT Approximate Scale: 1 Inch = 100 Feet A u a h i S t . S t . B-20 A v e. K e a w e A v e n u e F o r r e s t Ala Moana W a r d C o r a l S t . WWPS C o o k e S t . Existing FMs A l a M o a n a B l v d. B-16 B-18 University of Hawaii K o u l a S t . School of Medicine O h e S t . K e w a l o B a s i n B-17 A h u i S t r e e t N H o n o l u l u H a r b o r 0 100 500 1000 Approximate Scale: 1 Inch = 100 Feet CONCEPTUAL 10 FT. DIAMETER TRUNK SEWER ALIGNMENT LOCATION MAP ALA MOANA - KAKAAKO TRUNK SEWER PROJECT SAND ISLAND WASTEWATER TREATMENT PLANT & LOG OF BORING B-20 SEWER BASIN FACILITIES Sheet 1 of 7 LOCATION: FORREST AVE, OAHU, HAWAII DATE(S) DRILLED: 9-13-10 to 9-15-10 GROUND SURFACE ELEVATION: N/A LOGGED BY: B. AHAKUELO CHECKED BY: J. KWONG GROUNDWATER LEVEL / DATE: SEE END OF LOG HAMMER TYPE: SAFETY HAMMER WEIGHT/DROP: 140 LBS / 30 IN CONTRACTOR: YK DRILLING, LLC DRILLING METHOD: 4-INCH SSA, WASH BORE, PQ WIRELINE DRILL EQUIP: MOBILE DRILL B-54 BOREHOLE BACKFILL: CEMENT GROUT OTHER TESTS DEPTH (FT) AND REMARKS UCS, psi DESCRIPTION LIMIT LOG LIQUID INDEX PLASTICITY WATER WEIGHT, pcf CONTENT, % RQD, % DRY UNIT GRAPHIC SAMPLING SAMPLE TYPE RESISTENCE SAMPLE NO. RECOVERY, % RECOVERY, 0 0 8" Asphalt Concrete Pavement FILL Brown silty gravel (GM), moist Tan coralline fine sand (SP), very loose, wet 1 2 100 5 LAGOONAL DEPOSIT -5 Gray lean clay with trace fine sand (CL), very soft to soft, wet Gray clayey coralline gravel with sand (GC), very loose, wet 2 2 100 Gray water return 10 -10 No recovery PQ-1 0 Gray water return 15 -15 contains coralline gravel 3 3 11 PQ-2 0 No recovery Gray water return 20 -20 4 8 33 Grayish tan water PQ-3 43 contains seams of silty clay return 25 -25 Coral limestone at CORAL REEF LIMESTONE tip of sampler Off white to gray coral reef limestone, strongly cemented, hard, closely fractured, wet PQ-4 100 90 Grayish tan water return 30 -30 90% Draft Submittal Date Printed:1/31/2011 FIGURE A-18 YOGI KWONG ENGINEERS, LLC SAND ISLAND WASTEWATER TREATMENT PLANT & LOG OF BORING B-20 SEWER BASIN FACILITIES Sheet 2 of 7 LOCATION: FORREST AVE, OAHU, HAWAII DATE(S) DRILLED: 9-13-10 to 9-15-10 GROUND SURFACE ELEVATION: N/A LOGGED BY: B. AHAKUELO CHECKED BY: J. KWONG GROUNDWATER LEVEL / DATE: SEE END OF LOG HAMMER TYPE: SAFETY HAMMER WEIGHT/DROP: 140 LBS / 30 IN CONTRACTOR: YK DRILLING, LLC DRILLING METHOD: 4-INCH SSA, WASH BORE, PQ WIRELINE DRILL EQUIP: MOBILE DRILL B-54 BOREHOLE BACKFILL: CEMENT GROUT OTHER TESTS DEPTH (FT) AND REMARKS UCS, psi DESCRIPTION LIMIT LOG LIQUID INDEX PLASTICITY WATER WEIGHT, pcf CONTENT, % RQD, % DRY UNIT GRAPHIC SAMPLING SAMPLE TYPE RESISTENCE SAMPLE NO. RECOVERY, % RECOVERY, 30 Grayish tan water PQ-5 100 95 contains fissures and some voids return 35 -35 contains more voids infilled with a tan silty sand PQ-6 100 92 Tan water return 40 -40 Tan water return becomes moderately hard to hard, crushed to moderately fractured with voids infilled with a tan PQ-7 97 58 silty sand and gravel layers 45 -45 becomes brown weakly to strongly cemented coral reef limestone, moderate hardness, crushed to closely fractured with coarse coralline silty sand and gravel zones with shell fragments PQ-8 100 35 50 -50 PQ-9 40 contains zones of weakly cemented gravel 55 -55 CORALLINE DETRITUS Off white weakly cemented silty coralline gravel and sand (GM), wet contains coral gravel fragments and coarse PQ coralline sand 35 10 60 -60 90% Draft Submittal Date Printed:1/31/2011 FIGURE A-18 YOGI KWONG ENGINEERS, LLC SAND ISLAND WASTEWATER TREATMENT PLANT & LOG OF BORING B-20 SEWER BASIN FACILITIES Sheet 3 of 7 LOCATION: FORREST AVE, OAHU, HAWAII DATE(S) DRILLED: 9-13-10 to 9-15-10 GROUND SURFACE ELEVATION: N/A LOGGED BY: B. AHAKUELO CHECKED BY: J. KWONG GROUNDWATER LEVEL / DATE: SEE END OF LOG HAMMER TYPE: SAFETY HAMMER WEIGHT/DROP: 140 LBS / 30 IN CONTRACTOR: YK DRILLING, LLC DRILLING METHOD: 4-INCH SSA, WASH BORE, PQ WIRELINE DRILL EQUIP: MOBILE DRILL B-54 BOREHOLE BACKFILL: CEMENT GROUT OTHER TESTS DEPTH (FT) AND REMARKS UCS, psi DESCRIPTION LIMIT LOG LIQUID INDEX PLASTICITY WATER WEIGHT, pcf CONTENT, % RQD, % DRY UNIT GRAPHIC SAMPLING SAMPLE TYPE RESISTENCE SAMPLE NO. RECOVERY, % RECOVERY, 60 Off white silty coralline gravel (GM), loose, wet 5 25 78 6 7 94 grades with fine to coarse sand 38.6 PQ No recovery 0 11 65 -65 7 11 22 becomes white, very loose to loose Gravel = 21% Off white silty sand to sandy silt with gravel (SM- 8 6 78 32.7 Sand = 29% ML), loose to medium sitff, wet Fines = 50% PQ contains off white coralline reef cobble and gravel Tan water return 100 29 12 fragments 70 -70 contains off white and gray coral cobble and PQ gravel fragments 20 13 Tan water return 75 -75 Tan silty sand with gravel (SM), medium dense, 9 31 67 wet Gs = 2.676 10 10 89 26.8 grades with more silt, loose to medium dense PQ Tan water return 0 14 No recovery 80 -80 becomes off white to white, loose Gravel = 25% 11 25 17 37.3 Sand = 46% Fines = 29% 12 5 100 30.8 PQ becomes light brown to white 50 15 85 -85 13 26 100 grades to loose to medium dense 21.9 81.5 TXUU 14 20/5" 90 grades to very dense 21.0 Sampler refusal Gs = 2.726 CORAL REEF LIMESTONE PQ Light brown to tan coral reef limestone, strongly 100 77 361 16 cemented, closely to moderately fractured 90 Off white to brown coral reef limestone, strongly-90 90% Draft Submittal Date Printed:1/31/2011 FIGURE A-18 YOGI KWONG ENGINEERS, LLC SAND ISLAND WASTEWATER TREATMENT PLANT & LOG OF BORING B-20 SEWER BASIN FACILITIES Sheet 4 of 7 LOCATION: FORREST AVE, OAHU, HAWAII DATE(S) DRILLED: 9-13-10 to 9-15-10 GROUND SURFACE ELEVATION: N/A LOGGED BY: B. AHAKUELO CHECKED BY: J. KWONG GROUNDWATER LEVEL / DATE: SEE END OF LOG HAMMER TYPE: SAFETY HAMMER WEIGHT/DROP: 140 LBS / 30 IN CONTRACTOR: YK DRILLING, LLC DRILLING METHOD: 4-INCH SSA, WASH BORE, PQ WIRELINE DRILL EQUIP: MOBILE DRILL B-54 BOREHOLE BACKFILL: CEMENT GROUT OTHER TESTS DEPTH (FT) AND REMARKS UCS, psi DESCRIPTION LIMIT LOG LIQUID INDEX PLASTICITY WATER WEIGHT, pcf CONTENT, % RQD, % DRY UNIT GRAPHIC SAMPLING SAMPLE TYPE RESISTENCE SAMPLE NO. RECOVERY, % RECOVERY, cemented, hard, closely fractured, contains trace basalt gravel Light gray water BASALT LAVA FLOWS PQ return 100 97 Gray slightly vesicular basalt, slightly weathered, 844 17 very hard, moderately fractured with brown weathering at joints 95 -95 PQ 100 80 13680 18 grades to slightly vesicular, closely to moderately fractured 100 -100 Light gray water PQ return 88 28 19 contains olivine weathering in fractures 105 -105 PQ grades to brownish gray 80 25 20 Gray water return CORAL REEF SANDSTONE Tan cemented coralline sandstone cobble and 110 gravel, low hardness, closely fractured, wet -110 Tan water return PQ 55 37 21 CORAL REEF LIMESTONE White, moderately cemented coral limestone, moderately hard to hard, closely fractured, 115 contains voids and fissures -115 grades with zones of crushed to closely fractured Light brown water PQ coral limestone return 100 32 22 120 -120 90% Draft Submittal Date Printed:1/31/2011 FIGURE A-18 YOGI KWONG ENGINEERS, LLC SAND ISLAND WASTEWATER TREATMENT PLANT & LOG OF BORING B-20 SEWER BASIN FACILITIES Sheet 5 of 7 LOCATION: FORREST AVE, OAHU, HAWAII DATE(S) DRILLED: 9-13-10 to 9-15-10 GROUND SURFACE ELEVATION: N/A LOGGED BY: B.