A07.01_-_Atch_2_-_DDR_Appendix_G_2018_Explorations.pdf

michael.hughes02 Text Box 2018 CPT and Sonic Explorations and Lab Test Data

GREGG DRILLING & TESTING, INC.

GEOTECHNICAL AND ENVIRONMENTAL INVESTIGATION SERVICES

950 Howe Rd • Martinez, California 94553 • (925) 313-5800 • FAX (925) 313-0302 www.greggdrilling.com

5/14/18

AECOM

Attn: David Pieczynski

Subject: CPT Site Investigation Levee Yuba City, California GREGG Project Number: 18-088MA

Dear Mr. Pieczynski:

The following report presents the results of GREGG Drilling & Testing’s Cone Penetration Test investigation for the above referenced site. The following testing services were performed:

1 Cone Penetration Tests (CPTU)

2 Pore Pressure Dissipation Tests (PPD)

3 Seismic Cone Penetration Tests (SCPTU)

4 UVOST Laser Induced Fluorescence (UVOST)

5 Groundwater Sampling (GWS)

6 Soil Sampling (SS)

7 Vapor Sampling (VS)

8 Pressuremeter Testing (PMT)

9 Vane Shear Testing (VST)

10 Dilatometer Testing (DMT)

A list of reference papers providing additional background on the specific tests conducted is provided in the bibliography following the text of the report. If you would like a copy of any of these publications or should you have any questions or comments regarding the contents of this report, please do not hesitate to contact our office at (562) 427-6899.

Sincerely, GREGG Drilling & Testing, Inc.

Mary Walden Operations Manager http://www.greggdrilling.com/

Cone Penetration Test Sounding Summary

-Table 1-

CPT Sounding

Identification

Date Termination

Depth (feet)

Depth of

Groundwater Samples

(feet)

Depth of Soil

Samples (feet)

Depth of Pore

Pressure Dissipation

Tests (feet)

SL0001-095C 5/9/2018 114.17 - - 41.3, 78.5

SL0001-096C 5/9/2018 118.27 - - 45.1

SL0001-098C 5/10/2018 111.22 - - 47.5

SL0001-099C 5/10/2018 111.88 - - 80.3

SL0001-101C 5/10/2018 111.71 - - 46.5

SL0001-102C 5/11/2018 105.81 - - 106.1

SL0001-104C 5/11/2018 109.91 - - 110.2

SL0001-106C 5/11/2018 103.02 - - 103.3

CPT Sounding

Identification

Date Termination

Depth (feet)

Depth of

Groundwater Samples

(feet)

Depth of Soil

Samples (feet)

Depth of Pore

Pressure Dissipation

Tests (feet)

SL000-103C 5/16/2018 75.46 - - -

SL000-105C 5/15/2018 106.46 - - 99.7

SL000-107C 5/15/2018 82.68 - - 74.6

SL000-108C 5/14/2018 107.12 - - 83.4, 87.9

SL000-109C 5/14/2018 104.82 - - 86.7

SL000-110C 5/15/2018 82.84 - - -

SL000-111C 5/16/2018 85.14 - - -

CPT Sounding

Identification

Date Termination

Depth (feet)

Depth of Groundwater

Samples (feet)

Depth of Soil

Samples (feet)

Depth of Pore

Pressure Dissipation

Tests (feet)

SL0001-112C 6/4/2018 60.04 - - -

SL0001-113C 6/4/2018 60.04 - - -

SL0001-114C 6/4/2018 59.88 - - 34.1

SL0001-115C 6/4/2018 60.04 - - 29.1

Bibliography

Lunne, T., Robertson, P.K. and Powell, J.J.M., “Cone Penetration Testing in Geotechnical Practice” E & FN Spon. ISBN 0 419 23750, 1997

Roberston, P.K., “Soil Classification using the Cone Penetration Test”, Canadian Geotechnical Journal, Vol. 27, 1990 pp. 151-158.

Mayne, P.W., “NHI (2002) Manual on Subsurface Investigations: Geotechnical Site Characterization”, available through www.ce.gatech.edu/~geosys/Faculty/Mayne/papers/index.html, Section 5.3, pp. 107-112.

Robertson, P.K., R.G. Campanella, D. Gillespie and A. Rice, “Seismic CPT to Measure In-Situ Shear Wave Velocity”, Journal of Geotechnical Engineering ASCE, Vol. 112, No. 8, 1986

pp. 791-803.

Robertson, P.K., Sully, J., Woeller, D.J., Lunne, T., Powell, J.J.M., and Gillespie, D.J., "Guidelines for Estimating Consolidation Parameters in Soils from Piezocone Tests", Canadian Geotechnical Journal, Vol. 29, No. 4, August 1992, pp. 539-550.

Robertson, P.K., T. Lunne and J.J.M. Powell, “Geo-Environmental Application of Penetration Testing”, Geotechnical Site Characterization, Robertson & Mayne (editors), 1998 Balkema, Rotterdam, ISBN 90 5410 939 4 pp 35-47.

Campanella, R.G. and I. Weemees, “Development and Use of An Electrical Resistivity Cone for Groundwater Contamination Studies”, Canadian Geotechnical Journal, Vol. 27 No. 5, 1990 pp. 557-567.

DeGroot, D.J. and A.J. Lutenegger, “Reliability of Soil Gas Sampling and Characterization Techniques”, International Site Characterization Conference - Atlanta, 1998.

Woeller, D.J., P.K. Robertson, T.J. Boyd and Dave Thomas, “Detection of Polyaromatic Hydrocarbon Contaminants Using the UVIF-CPT”, 53rd Canadian Geotechnical Conference Montreal, QC October pp. 733-739, 2000.

Zemo, D.A., T.A. Delfino, J.D. Gallinatti, V.A. Baker and L.R. Hilpert, “Field Comparison of Analytical Results from Discrete-Depth Groundwater Samplers” BAT EnviroProbe and QED HydroPunch, Sixth national Outdoor Action Conference, Las Vegas, Nevada Proceedings, 1992, pp 299-312.

Copies of ASTM Standards are available through www.astm.org http://www.ce.gatech.edu/~geosys/Faculty/Mayne/papers/index.html

Revised 02/05/2015 i

Cone Penetration Testing Procedure (CPT)

Gregg Drilling carries out all Cone Penetration Tests

(CPT) using an integrated electronic cone system, Figure CPT.

The cone takes measurements of tip resistance (qc), sleeve resistance (fs), and penetration pore water pressure (u2). Measurements are taken at either 2.5 or

5 cm intervals during penetration to provide a nearly continuous profile. CPT data reduction and basic interpretation is performed in real time facilitating on‐ site decision making. The above mentioned parameters are stored electronically for further analysis and reference. All CPT soundings are performed in accordance with revised ASTM standards

(D 5778‐12).

The 5mm thick porous plastic filter element is located directly behind the cone tip in the u2 location. A new saturated filter element is used on each sounding to measure both penetration pore pressures as well as measurements during a dissipation test (PPDT). Prior to each test, the filter element is fully saturated with oil under vacuum pressure to improve accuracy.

When the sounding is completed, the test hole is backfilled according to client specifications. If grouting is used, the procedure generally consists of pushing a hollow tremie pipe with a “knock out” plug to the termination depth of the CPT hole. Grout is then pumped under pressure as the tremie pipe is pulled from the hole. Disruption or further contamination to the site is therefore minimized.

Figure CPT

Revised 02/05/2015 ii

Gregg 15cm2 Standard Cone Specifications

Dimensions

Cone base area 15 cm2

Sleeve surface area 225 cm2

Cone net area ratio 0.80

Specifications

Cone load cell

Full scale range 180 kN (20 tons)

Overload capacity 150%

Full scale tip stress 120 MPa (1,200 tsf)

Repeatability 120 kPa (1.2 tsf)

Sleeve load cell

Full scale range 31 kN (3.5 tons)

Overload capacity 150%

Full scale sleeve stress 1,400 kPa (15 tsf)

Repeatability 1.4 kPa (0.015 tsf)

Pore pressure transducer

Full scale range 7,000 kPa (1,000 psi)

Overload capacity 150%

Repeatability 7 kPa (1 psi)

Note: The repeatability during field use will depend somewhat on ground conditions, abrasion, maintenance and zero load stability.

Revised 2/05/2015 i

Cone Penetration Test Data & Interpretation

The Cone Penetration Test (CPT) data collected are presented in graphical and electronic form in the report. The plots include interpreted Soil Behavior Type (SBT) based on the charts described by

Robertson (1990). Typical plots display SBT based on the non‐normalized charts of Robertson et al

(1986). For CPT soundings deeper than 30m, we recommend the use of the normalized charts of

Robertson (1990) which can be displayed as SBTn, upon request. The report also includes spreadsheet output of computer calculations of basic interpretation in terms of SBT and SBTn and various geotechnical parameters using current published correlations based on the comprehensive review by Lunne, Robertson and Powell (1997), as well as recent updates by Professor Robertson

(Guide to Cone Penetration Testing, 2015). The interpretations are presented only as a guide for geotechnical use and should be carefully reviewed. Gregg Drilling & Testing Inc. does not warranty the correctness or the applicability of any of the geotechnical parameters interpreted by the software and does not assume any liability for use of the results in any design or review. The user should be fully aware of the techniques and limitations of any method used in the software. Some interpretation methods require input of the groundwater level to calculate vertical effective stress.

An estimate of the in‐situ groundwater level has been made based on field observations and/or CPT results, but should be verified by the user.

A summary of locations and depths is available in Table 1. Note that all penetration depths referenced in the data are with respect to the existing ground surface.

Note that it is not always possible to clearly identify a soil type based solely on qt, fs, and u2. In these situations, experience, judgment, and an assessment of the pore pressure dissipation data should be used to infer the correct soil behavior type.

Figure SBT (After Robertson et al., 1986) – Note: Colors may vary slightly compared to plots

ZONE SBT

Sensitive, fine grained Organic materials Clay Silty clay to clay Clayey silt to silty clay Sandy silt to clayey silt Silty sand to sandy silt Sand to silty sand Sand

Gravely sand to sand Very stiff fine grained* Sand to clayey sand*

*over consolidated or cemented

Cone Penetration Test (CPT) Interpretation

Gregg uses a proprietary CPT interpretation and plotting software. The software takes the CPT data and performs basic interpretation in terms of soil behavior type (SBT) and various geotechnical parameters using current published empirical correlations based on the comprehensive review by Lunne, Robertson and Powell (1997). The interpretation is presented in tabular format using MS Excel. The interpretations are presented only as a guide for geotechnical use and should be carefully reviewed. Gregg does not warranty the correctness or the applicability of any of the geotechnical parameters interpreted by the software and does not assume any liability for any use of the results in any design or review. The user should be fully aware of the techniques and limitations of any method used in the software.

The following provides a summary of the methods used for the interpretation. Many of the empirical correlations to estimate geotechnical parameters have constants that have a range of values depending on soil type, geologic origin and other factors. The software uses ‘default’ values that have been selected to provide, in general, conservatively low estimates of the various geotechnical parameters.

Input:

1 Units for display (Imperial or metric) (atm. pressure, pa = 0.96 tsf or 0.1 MPa)

2 Depth interval to average results (ft or m). Data are collected at either 0.02 or 0.05m and can be averaged every 1, 3 or 5 intervals.

3 Elevation of ground surface (ft or m)

4 Depth to water table, zw (ft or m) – input required

5 Net area ratio for cone, a (default to 0.80)

6 Relative Density constant, CDr (default to 350)

7 Young’s modulus number for sands, α (default to 5)

8 Small strain shear modulus number

a. for sands, SG (default to 180 for SBTn 5, 6, 7)

b. for clays, CG (default to 50 for SBTn 1, 2, 3 & 4)

9 Undrained shear strength cone factor for clays, Nkt (default to 15)

10 Over Consolidation ratio number, kocr (default to 0.3)

11 Unit weight of water, (default to γw = 62.4 lb/ft3 or 9.81 kN/m3)

Column

1 Depth, z, (m) – CPT data is collected in meters

2 Depth (ft)

3 Cone resistance, qc (tsf or MPa)

4 Sleeve resistance, fs (tsf or MPa)

5 Penetration pore pressure, u (psi or MPa), measured behind the cone (i.e. u2)

6 Other – any additional data

7 Total cone resistance, qt (tsf or MPa) qt = qc + u (1‐a)

Revised 02/05/2015 ii

8 Friction Ratio, Rf (%) Rf = (fs/qt) x 100%

9 Soil Behavior Type (non‐normalized), SBT see note

10 Unit weight, γ (pcf or kN/m3) based on SBT, see note

11 Total overburden stress, σv (tsf) σvo = σ z

12 In‐situ pore pressure, uo (tsf) uo = γ w (z ‐ zw)

13 Effective overburden stress, σ'vo (tsf ) σ'vo = σvo ‐ uo

14 Normalized cone resistance, Qt1 Qt1= (qt ‐ σvo) / σ'vo

15 Normalized friction ratio, Fr (%) Fr = fs / (qt ‐ σvo) x 100%

16 Normalized Pore Pressure ratio, Bq Bq = u – uo / (qt ‐ σvo)

17 Soil Behavior Type (normalized), SBTn see note

18 SBTn Index, Ic see note

19 Normalized Cone resistance, Qtn (n varies with Ic) see note

20 Estimated permeability, kSBT (cm/sec or ft/sec) see note

21 Equivalent SPT N60, blows/ft see note

22 Equivalent SPT (N1)60 blows/ft see note

23 Estimated Relative Density, Dr, (%) see note

24 Estimated Friction Angle, φ', (degrees) see note

25 Estimated Young’s modulus, Es (tsf) see note

26 Estimated small strain Shear modulus, Go (tsf) see note

27 Estimated Undrained shear strength, su (tsf) see note

28 Estimated Undrained strength ratio su/σv’

29 Estimated Over Consolidation ratio, OCR see note

Notes:

1 Soil Behavior Type (non‐normalized), SBT (Lunne et al., 1997 and table below)

2 Unit weight, γ either constant at 119 pcf or based on Non‐normalized SBT (Lunne et al., 1997 and table below)

3 Soil Behavior Type (Normalized), SBTn Lunne et al. (1997)

4 SBTn Index, Ic Ic = ((3.47 – log Qt1)2 + (log Fr + 1.22)2)0.5

5 Normalized Cone resistance, Qtn (n varies with Ic)

Qtn = ((qt ‐ σvo)/pa) (pa/(σvo)n and recalculate Ic, then iterate:

When Ic < 1.64, n = 0.5 (clean sand)

When Ic > 3.30, n = 1.0 (clays)

When 1.64 < Ic < 3.30, n = (Ic – 1.64)0.3 + 0.5

Iterate until the change in n, ∆n < 0.01

Revised 02/05/2015 iii

6 Estimated permeability, kSBT based on Normalized SBTn (Lunne et al., 1997 and table below)

7 Equivalent SPT N60, blows/ft Lunne et al. (1997) a

N

)/p(qt

= 8.5

4.6

I 1 c

8 Equivalent SPT (N1)60 blows/ft (N1)60 = N60 CN, where CN = (pa/σvo)0.5

9 Relative Density, Dr, (%) Dr 2 = Qtn / CDr

Only SBTn 5, 6, 7 & 8 Show ‘N/A’ in zones 1, 2, 3, 4 & 9

10 Friction Angle, φ', (degrees) tan φ ' =

29.0 q log

68.2 vo c

Only SBTn 5, 6, 7 & 8 Show’N/A’ in zones 1, 2, 3, 4 & 9

11 Young’s modulus, Es Es = α qt

Only SBTn 5, 6, 7 & 8 Show ‘N/A’ in zones 1, 2, 3, 4 & 9

12 Small strain shear modulus, Go

a. Go = SG (qt σ'vo pa)1/3 For SBTn 5, 6, 7

b. Go = CG qt For SBTn 1, 2, 3& 4

Show ‘N/A’ in zones 8 & 9

13 Undrained shear strength, su su = (qt ‐ σvo) / Nkt

Only SBTn 1, 2, 3, 4 & 9 Show ‘N/A’ in zones 5, 6, 7 & 8

14 Over Consolidation ratio, OCR OCR = kocr Qt1

Only SBTn 1, 2, 3, 4 & 9 Show ‘N/A’ in zones 5, 6, 7 & 8

The following updated and simplified SBT descriptions have been used in the software:

SBT Zones SBTn Zones

1 sensitive fine grained 1 sensitive fine grained

2 organic soil 2 organic soil

3 clay 3 clay

4 clay & silty clay 4 clay & silty clay

5 clay & silty clay

6 sandy silt & clayey silt

Revised 02/05/2015 iv

7 silty sand & sandy silt 5 silty sand & sandy silt

8 sand & silty sand 6 sand & silty sand

9 sand

10 sand 7 sand

11 very dense/stiff soil* 8 very dense/stiff soil*

12 very dense/stiff soil* 9 very dense/stiff soil*

*heavily overconsolidated and/or cemented

Track when soils fall with zones of same description and print that description (i.e. if soils fall only within SBT zones 4 & 5, print ‘clays & silty clays’)

Revised 02/05/2015 v

Estimated Permeability (see Lunne et al., 1997)

SBTn Permeability (ft/sec) (m/sec)

1 3x 10‐8 1x 10‐8

2 3x 10‐7 1x 10‐7

3 1x 10‐9 3x 10‐10

4 3x 10‐8 1x 10‐8

5 3x 10‐6 1x 10‐6

6 3x 10‐4 1x 10‐4

7 3x 10‐2 1x 10‐2

8 3x 10‐6 1x 10‐6

9 1x 10‐8 3x 10‐9

Estimated Unit Weight (see Lunne et al., 1997)

SBT Approximate Unit Weight (lb/ft3) (kN/m3)

1 111.4 17.5

2 79.6 12.5

3 111.4 17.5

4 114.6 18.0

5 114.6 18.0

6 114.6 18.0

7 117.8 18.5

8 120.9 19.0

9 124.1 19.5

10 127.3 20.0

11 130.5 20.5

12 120.9 19.0

Revised 02.05.2015 i

Pore Pressure Dissipation Tests (PPDT)

Pore Pressure Dissipation Tests (PPDT’s) conducted at various intervals can be used to measure equilibrium water pressure (at the time of the CPT). If conditions are hydrostatic, the equilibrium water pressure can be used to determine the approximate depth of the ground water table. A PPDT is conducted when penetration is halted at specific intervals determined by the field representative. The variation of the penetration pore pressure (u) with time is measured behind the tip of the cone and recorded.

Pore pressure dissipation data can be interpreted to provide estimates of:

Equilibrium piezometric pressure

Phreatic Surface

In situ horizontal coefficient of consolidation (ch)

In situ horizontal coefficient of permeability (kh)

In order to correctly interpret the equilibrium piezometric pressure and/or the phreatic surface, the pore pressure must be monitored until it reaches equilibrium, Figure PPDT. This time is commonly referred to as t100, the point at which 100% of the excess pore pressure has dissipated.

A complete reference on pore pressure dissipation tests is presented by Robertson et al. 1992 and Lunne et al. 1997.

A summary of the pore pressure dissipation tests are summarized in Table 1.

Figure PPDT

Seismic Cone Penetration Testing (SCPT)

Seismic Cone Penetration Testing (SCPT) can be conducted at various intervals during the Cone

Penetration Test. Shear wave velocity (Vs) can then be calculated over a specified interval with depth. A small interval for seismic testing, such as 1‐1.5m (3‐5ft) allows for a detailed look at the shear wave profile with depth. Conversely, a larger interval such as 3‐6m (10‐20ft) allows for a more average shear wave velocity to be calculated. Gregg’s cones have a horizontally active geophone located 0.2m (0.66ft) behind the tip.

To conduct the seismic shear wave test, the penetration of the cone is stopped and the rods are decoupled from the rig. An automatic hammer is triggered to send a shear wave into the soil. The distance from the source to the cone is calculated knowing the total depth of the cone and the horizontal offset distance between the source and the cone. To calculate an interval velocity, a minimum of two tests must be performed at two different depths. The arrival times between the two wave traces are compared to obtain the difference in time (∆t). The difference in depth is calculated (∆d) and velocity can be determined using the simple equation: v = ∆d/∆t

Multiple wave traces can be recorded at the same depth to improve quality of the data.

A complete reference on seismic cone penetration tests is presented by

Robertson et al. 1986 and

Lunne et al. 1997.

A summary the shear wave velocities, arrival times and wave traces are provided with the report.

Figure SCPT

(S) t 1

1 2

Revised 3/09/2015 i

Groundwater Sampling

Gregg Drilling & Testing, Inc. conducts groundwater sampling using a sampler as shown in Figure GWS.

The groundwater sampler has a retrievable stainless steel or disposable PVC screen with steel drop off tip. This allows for samples to be taken at multiple depth intervals within the same sounding location.

In areas of slower water recharge, provisions may be made to set temporary PVC well screens during sampling to allow the pushing equipment to advance to the next sample location while the groundwater is allowed to infiltrate.

The groundwater sampler operates by advancing 44.5mm (1¾ inch) hollow push rods with the filter tip in a closed configuration to the base of the desired sampling interval. Once at the desired sample depth, the push rods are retracted; exposing the encased filter screen and allowing groundwater to infiltrate hydrostatically from the formation into the inlet screen. A small diameter bailer (approximately ½ or ¾ inch) is lowered through the push rods into the screen section for sample collection. The number of downhole trips with the bailer and time necessary to complete the sample collection at each depth interval is a function of sampling protocols, volume requirements, and the yield characteristics and storage capacity of the formation. Upon completion of sample collection, the push rods and sampler, with the exception of the PVC screen and steel drop off tip are retrieved to the ground surface, decontaminated and prepared for the next sampling event.

For a detailed reference on direct push groundwater sampling, refer to Zemo et. al., 1992. Figure GWS

Soil Sampling

Gregg Drilling & Testing, Inc. uses a piston‐type push‐in sampler to obtain small soil samples without generating any soil cuttings, Figure SS.

Two different types of samplers (12 and 18 inch) are used depending on the soil type and density.

The soil sampler is initially pushed in a "closed" position to the desired sampling interval using the CPT pushing equipment. Keeping the sampler closed minimizes the potential of cross contamination. The inner tip of the sampler is then retracted leaving a hollow soil sampler with inner 1¼” diameter sample tubes. The hollow sampler is then pushed in a locked "open" position to collect a soil sample. The filled sampler and push rods are then retrieved to the ground surface. Because the soil enters the sampler at a constant rate, the opportunity for

100% recovery is increased. For environmental analysis, the soil sample tube ends are sealed with Teflon and plastic caps. Often, a longer "split tube" can be used for geotechnical sampling.

For a detailed reference on direct push soil sampling, refer to Robertson et al, 1998.

Figure SS

CLIENT: AECOM

GREGG DRILLING, INC.

www.greggdrilling.com

Total depth: 114.17 ft, Date: 5/9/2018LEVEE - YUBA CITY, CA

CPT: SL0001-095C

SITE:

Field Rep: MEHRZAD

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grained

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio SPT N60

HAND AUGER

N60 (blows/ft) 100806040200

D ep th ft

SPT N60 Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay & silty clay Clay & silty clay Clay & silty clay Clay & silty clay Clay & silty clay

Clay & silty clay Clay Very dense/stiff soil Clay & silty clay Clay & silty clay Clay & silty clay Sand & silty sand Sand & silty sand

Clay & silty clay

Clay Clay & silty clay Clay & silty clay Clay & silty clay

Sand

Sand & silty sand

Sand Sand & silty sand

Sand Sand Sand Sand Sand & silty sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/14/2018, 7:05:23 PM 1 Project file: C:\CDP\180088MA\Report\180088MA.cpt www.greggdrilling.com

Total depth: 114.17 ft, Date: 5/9/2018LEVEE - YUBA CITY, CA

CPT: SL0001-095C

SITE:

Field Rep: MEHRZAD

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grainedWATER TABLE FOR ESTIMATING PURPOSES ONLY

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Pore pressure u

HAND AUGER

Pressure (psi) 150100500

D ep th ft

Pore pressure u Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay & silty clay Clay & silty clay Clay & silty clay Clay & silty clay Clay & silty clay

Clay & silty clay Clay Very dense/stiff soil Clay & silty clay Clay & silty clay Clay & silty clay Sand & silty sand Sand & silty sand

Clay & silty clay

Clay Clay & silty clay Clay & silty clay Clay & silty clay

Sand

Sand & silty sand

Sand Sand & silty sand

Sand Sand Sand Sand Sand & silty sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/14/2018, 7:05:23 PM 2 www.greggdrilling.com

Total depth: 118.27 ft, Date: 5/9/2018LEVEE - YUBA CITY, CA

CPT: SL0001-096C

SITE:

Field Rep: MEHRZAD

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grained

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio SPT N60

HAND AUGER

N60 (blows/ft) 100806040200

D ep th ft

SPT N60 Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay Clay

Clay & silty clay

Clay

Clay & silty clay

Clay Very dense/stiff soil Clay & silty clay Very dense/stiff soil Sand & silty sand

Sand Sand & silty sand Clay Clay & silty clay Sand & silty sand Sand & silty sand Clay & silty clay Sand Sand Sand Sand Sand

Sand & silty sand

Sand Sand & silty sand Sand & silty sand

Sand & silty sand Sand

Sand

Sand & silty sand

Sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/14/2018, 7:05:24 PM 3 www.greggdrilling.com

Total depth: 118.27 ft, Date: 5/9/2018LEVEE - YUBA CITY, CA

CPT: SL0001-096C

SITE:

Field Rep: MEHRZAD

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grainedWATER TABLE FOR ESTIMATING PURPOSES ONLY

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Pore pressure u

HAND AUGER

Pressure (psi) 150100500

D ep th ft

Pore pressure u Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay Clay

Clay & silty clay

Clay

Clay & silty clay

Clay Very dense/stiff soil Clay & silty clay Very dense/stiff soil Sand & silty sand

Sand Sand & silty sand Clay Clay & silty clay Sand & silty sand Sand & silty sand Clay & silty clay Sand Sand Sand Sand Sand

Sand & silty sand

Sand Sand & silty sand Sand & silty sand

Sand & silty sand Sand

Sand

Sand & silty sand

Sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/14/2018, 7:05:24 PM 4 www.greggdrilling.com

Total depth: 111.22 ft, Date: 5/10/2018LEVEE - YUBA CITY, CA

CPT: SL0001-098C

SITE:

Field Rep: MEHRZAD

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grained

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio SPT N60

HAND AUGER

N60 (blows/ft) 100806040200

D ep th ft

SPT N60 Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay & silty clay Silty sand & sandy silt

Clay & silty clay

Silty sand & sandy silt Silty sand & sandy silt Clay & silty clay Clay & silty clay Silty sand & sandy silt

Sand & silty sand

Sand Clay Silty sand & sandy silt Clay & silty clay Sand & silty sand Sand

Sand Sand & silty sand Sand & silty sand Sand

Sand & silty sand Sand Sand & silty sand

Sand Sand & silty sand Sand & silty sand

Sand & silty sand Silty sand & sandy silt Sand & silty sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/14/2018, 7:05:24 PM 5 www.greggdrilling.com

Total depth: 111.22 ft, Date: 5/10/2018LEVEE - YUBA CITY, CA

CPT: SL0001-098C

SITE:

Field Rep: MEHRZAD

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grainedWATER TABLE FOR ESTIMATING PURPOSES ONLY

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Pore pressure u

HAND AUGER

Pressure (psi) 150100500

D ep th ft

Pore pressure u Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay & silty clay Silty sand & sandy silt

Clay & silty clay

Silty sand & sandy silt Silty sand & sandy silt Clay & silty clay Clay & silty clay Silty sand & sandy silt

Sand & silty sand

Sand Clay Silty sand & sandy silt Clay & silty clay Sand & silty sand Sand

Sand Sand & silty sand Sand & silty sand Sand

Sand & silty sand Sand Sand & silty sand

Sand Sand & silty sand Sand & silty sand

Sand & silty sand Silty sand & sandy silt Sand & silty sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/14/2018, 7:05:24 PM 6 www.greggdrilling.com

Total depth: 111.88 ft, Date: 5/10/2018LEVEE - YUBA CITY, CA

CPT: SL0001-099C

SITE:

Field Rep: MEHRZAD

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grained

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio SPT N60

HAND AUGER

N60 (blows/ft) 100806040200

D ep th ft

SPT N60 Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay & silty clay Silty sand & sandy silt Clay & silty clay

Clay & silty clay

Silty sand & sandy silt Clay & silty clay

Silty sand & sandy silt

Sand & silty sand

Sand

Clay & silty clay Silty sand & sandy silt Clay & silty clay Very dense/stiff soil Sand & silty sand Sand & silty sand Sand Sand Sand Sand & silty sand Sand Sand & silty sand Sand & silty sand Sand Sand Sand Sand & silty sand Clay & silty clay Clay & silty clay Silty sand & sandy silt Sand & silty sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/14/2018, 7:05:25 PM 7 www.greggdrilling.com

Total depth: 111.88 ft, Date: 5/10/2018LEVEE - YUBA CITY, CA

CPT: SL0001-099C

SITE:

Field Rep: MEHRZAD

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grainedWATER TABLE FOR ESTIMATING PURPOSES ONLY

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Pore pressure u

HAND AUGER

Pressure (psi) 150100500

D ep th ft

Pore pressure u Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay & silty clay Silty sand & sandy silt Clay & silty clay

Clay & silty clay

Silty sand & sandy silt Clay & silty clay

Silty sand & sandy silt

Sand & silty sand

Sand

Clay & silty clay Silty sand & sandy silt Clay & silty clay Very dense/stiff soil Sand & silty sand Sand & silty sand Sand Sand Sand Sand & silty sand Sand Sand & silty sand Sand & silty sand Sand Sand Sand Sand & silty sand Clay & silty clay Clay & silty clay Silty sand & sandy silt Sand & silty sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/14/2018, 7:05:25 PM 8 www.greggdrilling.com

Total depth: 111.71 ft, Date: 5/10/2018LEVEE - YUBA CITY, CA

CPT: SL0001-101C

SITE:

Field Rep: MEHRZAD

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grained

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio SPT N60

HAND AUGER

N60 (blows/ft) 100806040200

D ep th ft

SPT N60 Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay Silty sand & sandy silt Silty sand & sandy silt Clay & silty clay Clay Silty sand & sandy silt Clay & silty clay Clay & silty clay Clay Silty sand & sandy silt

Sand & silty sand

Sand Sand & silty sand Sand & silty sand Sand & silty sand Sand Sand Sand

Sand & silty sand Silty sand & sandy silt Very dense/stiff soil Clay & silty clay Sand & silty sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/14/2018, 7:05:25 PM 9 www.greggdrilling.com

Total depth: 111.71 ft, Date: 5/10/2018LEVEE - YUBA CITY, CA

CPT: SL0001-101C

SITE:

Field Rep: MEHRZAD

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grainedWATER TABLE FOR ESTIMATING PURPOSES ONLY

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Pore pressure u

HAND AUGER

Pressure (psi) 150100500

D ep th ft

Pore pressure u Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay Silty sand & sandy silt Silty sand & sandy silt Clay & silty clay Clay Silty sand & sandy silt Clay & silty clay Clay & silty clay Clay Silty sand & sandy silt

Sand & silty sand

Sand Sand & silty sand Sand & silty sand Sand & silty sand Sand Sand Sand

Sand & silty sand Silty sand & sandy silt Very dense/stiff soil Clay & silty clay Sand & silty sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/14/2018, 7:05:25 PM 10 www.greggdrilling.com

Total depth: 105.81 ft, Date: 5/11/2018LEVEE - YUBA CITY, CA

CPT: SL0001-102C

SITE:

Field Rep: MEHRZAD

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grained

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio SPT N60

HAND AUGER

N60 (blows/ft) 100806040200

D ep th ft

SPT N60 Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay & silty clay

Clay

Clay & silty clay Clay Clay & silty clay Clay Clay & silty clay Clay & silty clay

Sand & silty sand

Sand

Sand Sand & silty sand Sand & silty sand Sand Sand Sand Sand & silty sand Sand Sand Sand Sand Sand Sand & silty sand Sand & silty sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/14/2018, 7:05:26 PM 11 www.greggdrilling.com

Total depth: 105.81 ft, Date: 5/11/2018LEVEE - YUBA CITY, CA

CPT: SL0001-102C

SITE:

Field Rep: MEHRZAD

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grainedWATER TABLE FOR ESTIMATING PURPOSES ONLY

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Pore pressure u

HAND AUGER

Pressure (psi) 150100500

D ep th ft

Pore pressure u Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay & silty clay

Clay

Clay & silty clay Clay Clay & silty clay Clay Clay & silty clay Clay & silty clay

Sand & silty sand

Sand

Sand Sand & silty sand Sand & silty sand Sand Sand Sand Sand & silty sand Sand Sand Sand Sand Sand Sand & silty sand Sand & silty sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/14/2018, 7:05:26 PM 12 www.greggdrilling.com

Total depth: 75.46 ft, Date: 5/16/2018LEVEE - YUBA CITY, CA

CPT: SL000-103C

SITE:

Field Rep: MEHRZAD M.

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grained

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio SPT N60

HAND AUGER

N60 (blows/ft) 100806040200

D ep th ft

SPT N60 Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay Silty sand & sandy silt Silty sand & sandy silt

Sand & silty sand

Sand

Sand

Sand & silty sand

Sand & silty sand

Sand Sand Sand & silty sand Sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/17/2018, 12:42:40 PM 1 Project file: C:\CDP\180088MA PART 2\Report\180088MA PART 2.cpt www.greggdrilling.com

Total depth: 75.46 ft, Date: 5/16/2018LEVEE - YUBA CITY, CA

CPT: SL000-103C

SITE:

Field Rep: MEHRZAD M.

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grainedWATER TABLE FOR ESTIMATING PURPOSES ONLY

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Pore pressure u

HAND AUGER

Pressure (psi) 4003002001000

D ep th ft

Pore pressure u Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay Silty sand & sandy silt Silty sand & sandy silt

Sand & silty sand

Sand

Sand

Sand & silty sand

Sand & silty sand

Sand Sand Sand & silty sand Sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/17/2018, 12:42:40 PM 2 www.greggdrilling.com

Total depth: 109.91 ft, Date: 5/11/2018LEVEE - YUBA CITY, CA

CPT: SL0001-104C

SITE:

Field Rep: MEHRZAD

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grained

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio SPT N60

HAND AUGER

N60 (blows/ft) 100806040200

D ep th ft

SPT N60 Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay & silty clay Clay & silty clay Silty sand & sandy silt Clay & silty clay Silty sand & sandy silt Silty sand & sandy silt Clay & silty clay Clay & silty clay Silty sand & sandy silt

Silty sand & sandy silt

Sand & silty sand

Sand Sand

Sand Sand & silty sand Sand & silty sand Sand Sand Sand & silty sand Sand & silty sand Sand & silty sand Sand

Sand & silty sand

Sand Sand & silty sand Sand & silty sand

Sand & silty sand

Sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/14/2018, 7:05:27 PM 13 www.greggdrilling.com

Total depth: 109.91 ft, Date: 5/11/2018LEVEE - YUBA CITY, CA

CPT: SL0001-104C

SITE:

Field Rep: MEHRZAD

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grainedWATER TABLE FOR ESTIMATING PURPOSES ONLY

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Pore pressure u

HAND AUGER

Pressure (psi) 150100500

D ep th ft

Pore pressure u Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay & silty clay Clay & silty clay Silty sand & sandy silt Clay & silty clay Silty sand & sandy silt Silty sand & sandy silt Clay & silty clay Clay & silty clay Silty sand & sandy silt

Silty sand & sandy silt

Sand & silty sand

Sand Sand

Sand Sand & silty sand Sand & silty sand Sand Sand Sand & silty sand Sand & silty sand Sand & silty sand Sand

Sand & silty sand

Sand Sand & silty sand Sand & silty sand

Sand & silty sand

Sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/14/2018, 7:05:27 PM 14 www.greggdrilling.com

Total depth: 106.46 ft, Date: 5/15/2018LEVEE - YUBA CITY, CA

CPT: SL000-105C

SITE:

Field Rep: MEHRZAD M.

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grained

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio SPT N60

HAND AUGER

N60 (blows/ft) 100806040200

D ep th ft

SPT N60 Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay & silty clay

Clay & silty clay

Silty sand & sandy silt Very dense/stiff soil Clay & silty clay Clay & silty clay

Sand & silty sand

Sand

Sand & silty sand

Sand Sand

Sand & silty sand Sand

Sand

Sand & silty sand Sand & silty sand Sand Sand & silty sand

Sand Sand & silty sand Very dense/stiff soil Clay & silty clay Sand & silty sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/17/2018, 12:42:40 PM 3 www.greggdrilling.com

Total depth: 106.46 ft, Date: 5/15/2018LEVEE - YUBA CITY, CA

CPT: SL000-105C

SITE:

Field Rep: MEHRZAD M.

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grainedWATER TABLE FOR ESTIMATING PURPOSES ONLY

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Pore pressure u

HAND AUGER

Pressure (psi) 4003002001000

D ep th ft

Pore pressure u Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay & silty clay

Clay & silty clay

Silty sand & sandy silt Very dense/stiff soil Clay & silty clay Clay & silty clay

Sand & silty sand

Sand

Sand & silty sand

Sand Sand

Sand & silty sand Sand

Sand

Sand & silty sand Sand & silty sand Sand Sand & silty sand

Sand Sand & silty sand Very dense/stiff soil Clay & silty clay Sand & silty sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/17/2018, 12:42:40 PM 4 www.greggdrilling.com

Total depth: 103.02 ft, Date: 5/11/2018LEVEE - YUBA CITY, CA

CPT: SL0001-106C

SITE:

Field Rep: MEHRZAD

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grained

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio SPT N60

HAND AUGER

N60 (blows/ft) 100806040200

D ep th ft

SPT N60 Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Silty sand & sandy silt Clay & silty clay Silty sand & sandy silt Clay Silty sand & sandy silt Sand & silty sand

Clay & silty clay

Clay Silty sand & sandy silt Clay & silty clay

Sand & silty sand

Sand Sand & silty sand Sand & silty sand Sand Sand Sand & silty sand

Sand & silty sand Silty sand & sandy silt

Sand & silty sand

Silty sand & sandy silt Clay Clay & silty clay Sand & silty sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/14/2018, 7:05:28 PM 15 www.greggdrilling.com

Total depth: 103.02 ft, Date: 5/11/2018LEVEE - YUBA CITY, CA

CPT: SL0001-106C

SITE:

Field Rep: MEHRZAD

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grainedWATER TABLE FOR ESTIMATING PURPOSES ONLY

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Pore pressure u

HAND AUGER

Pressure (psi) 150100500

D ep th ft

Pore pressure u Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Silty sand & sandy silt Clay & silty clay Silty sand & sandy silt Clay Silty sand & sandy silt Sand & silty sand

Clay & silty clay

Clay Silty sand & sandy silt Clay & silty clay

Sand & silty sand

Sand Sand & silty sand Sand & silty sand Sand Sand Sand & silty sand

Sand & silty sand Silty sand & sandy silt

Sand & silty sand

Silty sand & sandy silt Clay Clay & silty clay Sand & silty sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/14/2018, 7:05:28 PM 16 www.greggdrilling.com

Total depth: 82.68 ft, Date: 5/15/2018LEVEE - YUBA CITY, CA

CPT: SL000-107C

SITE:

Field Rep: MEHRZAD M.

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grained

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio SPT N60

HAND AUGER

N60 (blows/ft) 100806040200

D ep th ft

SPT N60 Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay & silty clay Silty sand & sandy silt Silty sand & sandy silt Silty sand & sandy silt

Sand & silty sand

Sand Sand & silty sand

Sand Sand & silty sand Sand Sand Sand & silty sand Sand

Sand & silty sand

Sand Very dense/stiff soil

Clay & silty clay Silty sand & sandy silt Sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/17/2018, 12:42:41 PM 5 www.greggdrilling.com

Total depth: 82.68 ft, Date: 5/15/2018LEVEE - YUBA CITY, CA

CPT: SL000-107C

SITE:

Field Rep: MEHRZAD M.

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grainedWATER TABLE FOR ESTIMATING PURPOSES ONLY

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Pore pressure u

HAND AUGER

Pressure (psi) 4003002001000

D ep th ft

Pore pressure u Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Clay & silty clay Silty sand & sandy silt Silty sand & sandy silt Silty sand & sandy silt

Sand & silty sand

Sand Sand & silty sand

Sand Sand & silty sand Sand Sand Sand & silty sand Sand

Sand & silty sand

Sand Very dense/stiff soil

Clay & silty clay Silty sand & sandy silt Sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/17/2018, 12:42:41 PM 6 www.greggdrilling.com

Total depth: 107.12 ft, Date: 5/14/2018LEVEE - YUBA CITY, CA

CPT: SL000-108C

SITE:

Field Rep: MEHRZAD M.

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grained

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Friction ratio

HAND AUGER

Rf (%) 1086420

D ep th ft

Friction ratio SPT N60

HAND AUGER

N60 (blows/ft) 100806040200

D ep th ft

SPT N60 Soil Behaviour Type

HAND AUGER

SBT (Robertson, 2010) 181614121086420

D ep th ft

Soil Behaviour Type

Silty sand & sandy silt Silty sand & sandy silt Clay Clay & silty clay

Clay & silty clay Silty sand & sandy silt

Clay & silty clay Silty sand & sandy silt Very dense/stiff soil Silty sand & sandy silt Clay & silty clay Silty sand & sandy silt Silty sand & sandy silt

Sand & silty sand

Silty sand & sandy silt

Sand & silty sand

Sand Sand & silty sand Sand Sand Silty sand & sandy silt Sand & silty sand Sand

Sand & silty sand

Silty sand & sandy silt Clay & silty clay Sand & silty sand Silty sand & sandy silt Clay & silty clay Clay & silty clay

Sand & silty sand

Sand

CPeT-IT v.18.0.1.15 - CPTU data presentation & interpretation software - Report created on: 5/17/2018, 12:42:41 PM 7 www.greggdrilling.com

Total depth: 107.12 ft, Date: 5/14/2018LEVEE - YUBA CITY, CA

CPT: SL000-108C

SITE:

Field Rep: MEHRZAD M.

SBTn legend

1. Sensitive fine grained

2. Organic material

3. Clay to silty clay

4. Clayey silt to silty clay

5. Silty sand to sandy silt

6. Clean sand to silty sand

7. Gravely sand to sand

8. Very stiff sand to clayey sand

9. Very stiff fine grainedWATER TABLE FOR ESTIMATING PURPOSES ONLY

Cone resistance

HAND AUGER

Tip resistance (tsf) 8006004002000

D ep th ft

Cone resistance Sleeve friction

HAND AUGER

Friction (tsf) 151050

D ep th ft

Sleeve friction Pore pressure u

HAND AUGER

Pressure…