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Report (2) Po, P, , tsf ID KD M,tsf 0 5 10 15 20 25 30 35 0.01 0.1 1 10 0 10 20 30 40 0 500 1,000 1,500 0 II I111 I11I WI IIIT 1111[1111 111111111 11111111 1 1 1 1 1 I 1 I I I I 11 1 1 1 1 1 1 1 1 1 r 5 g, A Po • p, 10 15 E 41 a = ` v ,1 25 , 8. C _-k , .0 30 g A / 2 35 i 4 .. . GRO DILATOMETER SOUNDING DMT-1 + JUNE 2017 JOB NO. 5970-B FIG. 6A Seismic Velocity (ft/s) 0 1200 0 1014 5 — i1 1073 10 — 1677 1 663 Depth 15 (ft) 1741 I 20 — 855 875 25 — 30 -- — TOTAL DEPTH:26.247 ft G Rp Observed By: N.Hatch Advanced By:Oregon Geotechnical Explorations,Inc. Date Started: 05/5117 Ground Surface Elevation: Not Available CONE PENETRATION TEST CPT-1 Coordinates: Not Available (SEISMIC VELOCITY PROFILE) JUNE 2017 JOB NO. 5970-B FIG. 5A i SPT N60 SBT Tip COR Sleeve Stress F.Ratio Pore Pressure (UNITLESS) (UNITLESS) (tsf) (tsf) (%) (psi) t D 0 70 0 12 0 450 0 3 0 7 -20 100 I I I I i I I I I 1 i ' ' I I I I I I I I I 1 1 J i 5 — -- — I — — "— —> Si' I r 10 s> _ �'. — — r / i' `,1 ," (. Depth (ft) 15 — i — r_ I I 20 — — `-. - — ..., is 1, 25 ---- - _ _ — c - r ___________ _ lit!ir!'”:::,1*;;*0,0.e11.14 ---- ---------- 1--- f___________ 30 TOTAL DEPTH:26.247 ft 1 sensitive fine grained II4 silty clay to clay r-"7 silty sand to sandy silt iii 10 gravelly sand to sand E 2 organic material Ill 5 clayey silt to silty clay 8 sand to silty sand t,11 very stiff fine grained(*) in 3 clay E 6 sandy silt to clayey silt ;, 9 sand /12 sand to clayey sand(*) *SBT/SPT CORRELATION:UBC-1983 G R 0 Observed By: N.Hatch Advanced By:Oregon Geotechnical Explorations,Inc. Date Started: 05/5/17 Ground Surface Elevation: Not Available - Coordinates: Not Available CONE PENETRATION TEST CPT-1 JUNE 2017 JOB NO. 5970-B FIG. 4A (.9 CLASSIFICATION OF MATERIALZ LLJ I-- • BLOWS PER FOOT oo • cl_ z • MOISTURE CONTENT,°A 0 0 FINES CONTENT,% —J DJ 1.11 0 1---1—LIQUID LIMIT,% COMMENTS AND F-- 0- I-- 4 0_ 11. D- I--- 2 2 0 Lum cf) PLASTIC LIMIT,% ADDITIONAL TESTS CC< DJ 4 4 _i 0 co Surface Elevation:Not Available c21 co Cl) co 0 50 100 . .. .. Silty SAND,brown mottled rust,very loose to loose, fine to medium grained 3 ---.:::•:.:::: . . , . . . . 45—.: . .. . . . . ... . . ' . . ,. . . .. . 5077Clayey SILT,some the-to medium-grained sand, 50 0 3 10 S-12 1 5 A •' , gray,stiff 5 51 5 — (5/3/2017) ' . . , . 55— i . . 60— ' . . . _ 1 ' . , 1 — I — : 65— N .-= I . , _ . , . . o I- C) — 112 m _ LJ F < 1-- 70— a E . o . . > — . LI, o ' z a - z O 75— o 0 z — . E . 1 E cD 80 0 0.5 1.0 • TORVANE SHEAR STRENGTH,TSF M UNDRAINED SHEAR STRENGTH,TSF G Rg BORING B-3 JUNE 2017 JOB NO.5970-B FIG.3A co z w A BLOWS PER FOOT o CLASSIFICATION OF MATERIAL o,_ � o a, • MOISTURE CONTENT, '-` v a z ~ o ❑ FINES CONTENT, w w U a a a a r.4---LIQUID LIMIT,% COMMENTS AND w cc w a ¢ of PLASTIC LIMIT,% ADDITIONAL TESTS C) CD Surface Elevation:Not Available a ? co co m 50 100 _urn _0 7 Asphalt concrete PAVEMENT(2 in.)over crushed . `rock BASE COURSE(6 in.) / Silty SAND,brown mottled rust,very loose to loose, i fine to medium grained 3 4 S-1 1 1 40 3 1 , 5-:: -:: --loose at 5 ft 1 S-2 11 8 1 2 1 ■ 6 h ---medium dense below 7.5 ft I 4 t7 I S-3 1 8 9 / . 10— /-. a 11 . S-4 I 6 — 5 , ---loose below 12.5 ft 3 e i I S-5I 44 111 , 15 :*::..`•' --interbedded with 3-in.-thick layer of sandy silt at 15ft 2 S-6 1 4 I -16.0 ft(5/3/2017) . t . 20- : :: . 2 5 S_7 I 2 . 3 • 25 ! <. ---very loose at 25 ft 1 a _ S-8 2 O 2 0 W 5 I ' a I 2 I w a30--:` : 1 I 0 9. 0 S-9 3 6 l . w I. w o z I 0 I 0 35—:- :: --medium dense at 35 ft , I J 4 15 5-10 1 7 8 J 1 0 , I. II. - I 4 1 (CONTINUED NEXT PAGE) 0 0.5 1.0 Logged By:C.Jones Drilled by:Dan J.Fischer Excavating,Inc. • TORVANE SHEAR STRENGTH,TSF Date Started:5/3/17 Coordinates:Not Available • UNDRAINED SHEAR STRENGTH,TSF Drilling Method: Solid-Stem Auger Hammer Type:Manual Equipment: Buck Rogers 160 Trailer-Mounted Rig Weight:140 lb Hole Diameter: 4 in. Drop:30 in. G R. I BORING B-3 Note:See Legend for Explanation of Symbols Energy Ratio:Not Available JUNE 2017 JOB NO.5970-B FIG.3A ! ♦ BLOWS PER FOOT o CLASSIFICATION OF MATERIAL o •o >. z • • MOISTURE CONTENT,% v `u < w w o 0 FINES CONTENT,% _ _ ± a a a �{—LIQUID LIMIT,% COMMENTS AND I- ¢ w I ¢ ¢ o PLASTIC LIMIT,% ADDITIONAL TESTS Li, cco 0 Surface Elevation:Not Available Z m 0 50 100 V Asphalt concrete PAVEMENT(2 in.)over crushed -U rock BASE COURSE(14 in.) _,.- 1.3 - . Sandy SILT,trace clay,red-brown,soft to medium i • stiff,fine-to medium-grained sand 1 4 . s-1 2 ♦ ♦ i ❑ _ z 1 5 ---medium stiff below 5 ft 11 0.40 0.55 stiff at 6 ft S-2 � Dry Density=91 pcf 4 -11 T _ S-3 5 T 6 I I 10- 3 5 I s4 I 2 . 3 _ I • 11 S-5 6 0.30 0 if 1 Dry Density=94 pcf 15—?'q: 15.0 3 _10 L— Silty SAND,brown,loose to medium dense,fine to S-6 5L I - medium grained 5 , 20-_:-::' ' 20.0 2 6i I Sandy SILT,brown,medium stiff,fine-to S_7 I z �2t.0 ft(5/3/2017) -. medium-grained sand L a• 25= - ---clayey,trace to some sand,stiff below 25 ft 3 Nm S-8 1 4 5 °liD / "-----+_50/2.5"- Drill rig chatter below lit _ _ 27.5 S_9 =50/2.5" -A 27 ft - BASALT,gray,predominantly decomposed to 27.8 • - decomposed,extremely soft to very soft(RO to R1), UJ joints and fractures stained rust and filled with black a 30- econdary mineralization 0 _ (5/3/2017) a W J W _ 0 Z O 35- 1 LD t — J o Z — 0 o CD E °-40 0 0.5 1.0 Logged By:C.Jones Drilled by:Dan J.Fischer Excavating,Inc. • TORVANE SHEAR STRENGTH,TSF ■ UNDRAINED SHEAR STRENGTH,TSF Date Started:5/3/17 Coordinates:Not Available Drilling Method: Solid-Stem Auger Hammer Type:Manual Equipment: Buck Rogers 160 Trailer-Mounted Rig Weight:140 lb BORING B- Hole Diameter: 4 in. Drop:30 in. G RI Note:See Legend for Explanation of Symbols Energy Ratio:Not Available JUNE 2017 JOB NO.5970-B FIG.2A BLOWS PER FOOT CLASSIFICATION OF MATERIAL o a F- � o > • MOISTURE CONTENT, " a w o ❑ FINES CONTENT,% = J J I..._—LIQUID LIMIT,% COMMENTS AND w < w N c a 0 PLASTIC LIMIT,% ADDITIONAL TESTS 0 o Surface Elevation:Not Available o ? v� °n m 0 50 50/5r 00 +++ BASALT,gray,predominantly decomposed to 40.5 S-11T50/5" decomposed,extremely soft to very soft(RO to R1), joints and fractures stained rust and filled with black secondary mineralization (5/4/2017) 45- 50- 55— 1 60- 65— F- 0 - OF W — a UI W a 70— O 5: W a 75— a EE J Z - . CO o—80 0 0.5 1.0 • TORVANE SHEAR STRENGTH,TSF • UNDRAINED SHEAR STRENGTH,TSF G RA BORING B-1 JUNE 2017 JOB NO.5970-B FIG.1A OFFICE COPY A BLOWS PER FOOT p CLASSIFICATION OF MATERIAL o o ii z • MOISTURE CONTENT,% LL v LL g w w o 0 FINES CONTENT,% _ F. a n a r—�LIQUID LIMIT,% COMMENTS AND PA w ¢ ¢ o PLASTIC LIMIT,% ADDITIONAL TESTS o o Surface Elevation:Not Available o z w `" m 0 50 100 .• Sandy SILT,brown,medium stiff,fine-to —_ .. medium-grained sand,3-in.-thick heavily rooted zone at ground surface . 0.35 1S1 ♦• 0.40 —soft to medium stiff below 4 ft • Dry Density=91 pcf 2 1 S-2 2 4 r • 2 I _ I — ' : Silty SAND,brown,loose,fine to medium grained 7.e 3 8 S-3 1 3 ■ 5 10— ---interbedded with 2 to 6 in.thick layers of silt with 2 8 / : some sand and trace clay below 10 ft S-4 1 a 11 0 C . a \. . ---medium dense below 12.5 ft 3 � S-5 I • Increased drilling i resistance below 14 ft S-6 15 1 A 8 I . _; ':: RECEIVED S-7 5 • 8 I FEB 10ZOZ1 I. CITY OF TIGARD k:,.:`�. 3UILDING DIVISION 25—?.;'• --loose to medium dense at 25 ft s _10 IE S-81 4 ♦ 0 6 1 o 1 u w — 1 Z129.0 ft(5/4/2017) a 30—' `:..:``• --loose below 30 ft 2 z 1 o S-9 I4 ❑ 0a — 3 � — I W I ' i I I Z g 35—: .::.`: 3 8 5 S-10 1 4 0 4 A� J z _ Increased dolling o resistance below 38 ft m —40 '`'•`` (CONTINUED NEXT PAGE) 0 0.5 1.0 Logged By:C.Jones Drilled by:Dan J.Fischer Excavating,Inc. • TORVANE SHEAR STRENGTH,TSF Date Started:5/4/17 Coordinates:NotAvailable • UNDRAINED SHEAR STRENGTH,TSF Drilling Method: Solid-Stem Auger Hammer Type:Manual Equipment: Buck Rogers 160 Trailer-Mounted Rig Weight:140 lb G RA BORING B-1 Hole Diameter: 4 in. Drop:30 in. Note:See Legend for Explanation of Symbols Energy Ratio:Not Available JUNE 2017 JOB NO.5970-B FIG.1A