CONE PENETRATION TEST DATA

CONE PENETRATION TEST DATA Proposed Logan Wastewater Plant Addition Logan, Utah July 30-31, 2014 Prepared for: IGES, Inc. Salt Lake City, Utah Prepared by: ConeTec, Inc. Salt Lake City, Utah August 4, 2014

ConeTec, Inc. Geotechnical and Environmental Site Investigation Contractors 37 West 0 South, Salt Lake City, UT 84104 PO Box 22082, Salt Lake City, UT 84122 Tel: (801) 973-3801 Fax: (801) 973-3802 Web: www.conetec.com Email: saltlakecity@conetec.com August 4, 2014 Job No.: 14-52067 Mr. Jared Hawes Tel: (801) 270-9400 IGES, Inc. Fax : (801) 270-9401 4153 Commerce Drive Email: jaredh@igesinc.com Salt Lake City, UT 84107 Re: Cone Penetration Test Data Proposed Logan Wastewater Plant Addition Logan, Utah Dear Jared, Per your request, we have completed the CPT investigation for the above referenced project. This report presents standard CPT plots and pore pressure dissipation plots in PDF format. Additionally, the CPT data, pore pressure dissipation data and CPT interpretation are presented in Excel format. The attached summary table outlines the work completed at the site. All CPT testing was performed in accordance with ASTM D5778 and industry standard practices. A compression model electronic piezocone penetrometer, with a 15-cm 2 tip and a 225-cm 2 friction sleeve was used for all of the testing. The cone penetrometer is designed with an equal end area friction sleeve and a tip end area ratio of 0.80. At the beginning of the sounding, the cone was outfitted with a vacuum saturated, 6-mm thick, porous plastic pore pressure element that is located immediately behind the tip in the u 2 location. The coordinates shown on the plots are for location reference only and generally have an accuracy of ±30 feet and are referenced to the WGS84 Datum. Many correlations have been developed for design parameters based on CPT data. The interpretations are presented only as a guide for geotechnical use and should be carefully scrutinized for consideration in any geotechnical design. Assumptions have been made regarding soil unit weights, groundwater level and interpretational methods, which may or may not apply to this site. The apparent water table used in the CPT interpretations is based on the results of the shallowest pore pressure dissipation test in each sounding. Please note that some artesian conditions were observed in the pore pressure dissipation tests. But the artesian conditions were not incorporated into the interpretations. Additionally, the following table summarizes the values assigned to the specific soil behavior type zones that are used in the interpretations. Salt Lake City, UT West Berlin, NJ Richmond, VA Raleigh, NC Vancouver, BC Edmonton, AB Toronto, ON Fort McMurray, AB Lima, Peru

Mr. Jared Hawes Job No.: 14-52067 IGES, Inc. Page 2 of 2 August 4, 2014 Zone SPT qt/n Unit Wt. (kn/m 3 ) Unit Wt. (pcf) Drainage Condition Description 0 1.0 18.46 117.5 Neither Undefined 1 2.0 17.5 111.4 Undrained Sensitive Fines 2 1.0 12.5 79.6 Undrained Organic Soil 3 1.0 17.5 111.4 Undrained Clay 4 1.5 18.0 114.6 Undrained y Clay 5 2.0 18.0 114.6 Undrained Clayey 6 2.5 18.0 114.6 Both 7 3.0 18.5 117.8 Drained y 8 4.0 19.0 120.9 Drained y / 9 5.0 19.5 124.1 Drained 10 6.0 20.0 127.3 Drained Gravelly 11 1.0 20.5 130.5 Drained Stiff Fine Grained 12 2.0 19.0 120.9 Drained Cemented We appreciate the opportunity of providing these services to you. If you have any questions regarding the enclosed material or if we can be of additional assistance, please contact us. Sincerely, ConeTec, Inc. Pete Bowen Peter A. Bowen, E.I.T. Staff Engineer Reviewed By: Shawn Steiner Shawn D. Steiner, P.E. Regional Manager Enclosures Salt Lake City, UT West Berlin, NJ Richmond, VA Raleigh, NC Vancouver, BC Edmonton, AB Toronto, ON Fort McMurray, AB Lima, Peru

ConeTec, Inc. - IGES, Inc. Job No.: 14-52067 Proposed Logan Wastewater Plant Addition Logan, Utah CPT Testing Summary Sounding ID CPT Date CPT Filename CPT Depth (ft) PPD Depth (ft) PPD Duration (sec) Ueq (ft) Calculated Water Table (ft) CPT-03 30-Jul-2014 14-52067_CP03 70.05 32.97 600 27.0 6.0.85 800 47.5 3.4 66.44 400 64.9 1.5 CPT-04 31-Jul-2014 14-52067_CP04 100.06 51.02 300 45.0 6.0 68.57 400 68.6-0.1 80.38 400 92.8-12.4 92.35 800 106.8-14.4 97.60 610 111.4-13.8 CPT-05 31-Jul-2014 14-52067_CP05 70.05 32.32 300 24.8 7.5 53.81 400 46.8 7.0 CPT-06 30-Jul-2014 14-52067_CP06 70.05 39.21 400 38.3 0.9 65.62 300 64.7 0.9 CPT-07 30-Jul-2014 14-52067_CP07 100.06 34.94 0 27.8 7.1 52.66 300 48.6 4.0 69.72 400 69.7 0.0 81.69 400 90.5-8.8 92.85 0 110.0-17.1 100.06 0 119.8-19.7 CPT-08 30-Jul-2014 14-52067_CP08 70.05 37.07 300 36.4 0.6 51.67 300 48.9 2.7 60.04 300 57.8 2.2 Comments

CPT Plots

Date: 07:30:14 11:54 Sounding: CPT-03 :T10F15U0 qt (tsf) fs (tsf) u (ft) Rf (%) SBT 0 100 200 300 400 0 0.0 1.0 2.0 3.0 4.0 0 100 200 300 0.0 2.0 4.0 6.0 8.0 0 6 12 y y / y 5 10 Clayey Clayey 15 Clayey 20 Depth (feet) 25 30 Ueq=27.0' Sensitive Fines Clayey Clayey Clayey Clayey y 35 40 y Clayey y Clay 45 Clayey y Max Depth: 21.3 m / 70.05 ft Depth Inc: 0.0 m / 0.164 ft Avg Int: 0.1 m File: 14-52067_CP03.COR Unit Wt: SBT Chart Soil Zones Ueq=47.5' y SBT: Lunne, Robertson and Powell, 1997 Coords: Lat: 41.739667 Long: -111.893867 Equilibrium Pore Pressure from Dissipation

qt (tsf) 0 100 200 300 400 fs (tsf) 0.0 1.0 2.0 3.0 4.0 Date: 07:30:14 11:54 u (ft) 0 100 200 300 Ueq=47.5' Rf (%) 0.0 2.0 4.0 6.0 8.0 Sounding: CPT-03 :T10F15U0 SBT 0 6 12 y / 55 60 Gravelly Gravelly y / y 65 70 Ueq=64.9' y / y / Clayey Depth (feet) 75 80 85 90 95 100 Max Depth: 21.3 m / 70.05 ft Depth Inc: 0.0 m / 0.164 ft Avg Int: 0.1 m File: 14-52067_CP03.COR Unit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997 Coords: Lat: 41.739667 Long: -111.893867 Equilibrium Pore Pressure from Dissipation

0 100 200 300 400 0 5 IGES qt (tsf) fs (tsf) 0.0 1.0 2.0 3.0 4.0 Date: 07:31:14 09:02 u (ft) 0 100 200 300 Rf (%) 0.0 2.0 4.0 6.0 8.0 Sounding: CPT-04 :T10F15U0 SBT 0 6 12 y y / y Clayey 10 y Clay 15 Clayey 20 Depth (feet) 25 30 Sensitive Fines y Clay Clay Clayey y / 35 y 40 Clayey y 45 Clayey y Max Depth: 30.0 m / 100.06 ft Depth Inc: 0.0 m / 0.164 ft Avg Int: 0.1 m File: 14-52067_CP04.COR Unit Wt: SBT Chart Soil Zones Ueq=45.0' y / SBT: Lunne, Robertson and Powell, 1997 Coords: Lat: 41.739083 Long: -111.893667 Equilibrium Pore Pressure from Dissipation

qt (tsf) 0 100 200 300 400 55 60 fs (tsf) 0.0 1.0 2.0 3.0 4.0 Date: 07:31:14 09:02 u (ft) 0 100 200 300 Ueq=45.0' Rf (%) 0.0 2.0 4.0 6.0 8.0 Sounding: CPT-04 :T10F15U0 SBT 0 6 12 y / Gravelly Clayey y / y / Gravelly y 65 70 Ueq=68.6' y y y Depth (feet) 75 y y 80 85 90 95 Ueq=92.8' Ueq=106.8' Ueq=111.4' y y Clayey y y Clayey y y / y / Gravelly 100 Max Depth: 30.0 m / 100.06 ft Depth Inc: 0.0 m / 0.164 ft Avg Int: 0.1 m File: 14-52067_CP04.COR Unit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997 Coords: Lat: 41.739083 Long: -111.893667 Equilibrium Pore Pressure from Dissipation

0 100 200 300 400 0 5 IGES qt (tsf) fs (tsf) 0.0 1.0 2.0 3.0 4.0 Date: 07:31:14 08:11 u (ft) 0 100 200 300 Rf (%) 0.0 2.0 4.0 6.0 8.0 Sounding: CPT-05 :T10F15U0 SBT 0 6 12 y y y / y 10 Clayey 15 20 y Clay Sensitive Fines Clayey y Clay Depth (feet) 25 30 Sensitive Fines Clayey y y / Ueq=24.8' 35 40 y / y y / y / y / 45 y Clay Clayey y y / Max Depth: 21.3 m / 70.05 ft Depth Inc: 0.0 m / 0.164 ft Avg Int: 0.1 m File: 14-52067_CP05.COR Unit Wt: SBT Chart Soil Zones Ueq=46.8' SBT: Lunne, Robertson and Powell, 1997 Coords: Lat: 41.738567 Long: -111.894167 Equilibrium Pore Pressure from Dissipation

qt (tsf) 0 100 200 300 400 55 60 fs (tsf) 0.0 1.0 2.0 3.0 4.0 Date: 07:31:14 08:11 u (ft) 0 100 200 300 Ueq=46.8' Rf (%) 0.0 2.0 4.0 6.0 8.0 Sounding: CPT-05 :T10F15U0 SBT 0 6 12 y / Gravelly y Gravelly y / y 65 70 Clayey Clayey y Clayey Depth (feet) 75 80 85 90 95 100 Max Depth: 21.3 m / 70.05 ft Depth Inc: 0.0 m / 0.164 ft Avg Int: 0.1 m File: 14-52067_CP05.COR Unit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997 Coords: Lat: 41.738567 Long: -111.894167 Equilibrium Pore Pressure from Dissipation

0 100 200 300 400 0 5 IGES qt (tsf) fs (tsf) 0.0 1.0 2.0 3.0 4.0 Date: 07:30:14 11:56 u (ft) 0 100 200 300 Rf (%) 0.0 2.0 4.0 6.0 8.0 Sounding: CPT-06 :T10F15U0 SBT 0 6 12 y / y / y Clayey 10 15 Clayey 20 Depth (feet) 25 30 35 Sensitive Fines Clayey y y Clayey y Clay y / y 40 45 Ueq=38.3' y / y Clay y Max Depth: 21.3 m / 70.05 ft Depth Inc: 0.0 m / 0.164 ft Avg Int: 0.1 m File: 14-52067_CP06.COR Unit Wt: SBT Chart Soil Zones y / y / SBT: Lunne, Robertson and Powell, 1997 Coords: Lat: 41.739633 Long: -111.892800 Equilibrium Pore Pressure from Dissipation

qt (tsf) 0 100 200 300 400 55 60 65 70 fs (tsf) 0.0 1.0 2.0 3.0 4.0 Ueq=38.3' Date: 07:30:14 11:56 u (ft) 0 100 200 300 Ueq=64.7' Rf (%) 0.0 2.0 4.0 6.0 8.0 Sounding: CPT-06 :T10F15U0 SBT 0 6 12 y / y / y y / y y / Clayey y / Depth (feet) 75 80 85 90 95 100 Max Depth: 21.3 m / 70.05 ft Depth Inc: 0.0 m / 0.164 ft Avg Int: 0.1 m File: 14-52067_CP06.COR Unit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997 Coords: Lat: 41.739633 Long: -111.892800 Equilibrium Pore Pressure from Dissipation

Date: 07:30:14 14:07 Sounding: CPT-07 :T10F15U0 qt (tsf) fs (tsf) u (ft) Rf (%) SBT 0 100 200 300 400 0 0.0 1.0 2.0 3.0 4.0 0 100 200 300 0.0 2.0 4.0 6.0 8.0 0 6 12 y / y 5 10 Clayey 15 20 Sensitive Fines Depth (feet) 25 30 Clayey y Clayey y Clayey 35 40 Ueq=27.8' y / y / Clayey Clayey 45 y y / Max Depth: 30.0 m / 100.06 ft Depth Inc: 0.0 m / 0.164 ft Avg Int: 0.1 m File: 14-52067_CP07.COR Unit Wt: SBT Chart Soil Zones Ueq=48.6' SBT: Lunne, Robertson and Powell, 1997 Coords: Lat: 41.738567 Long: -111.892833 Equilibrium Pore Pressure from Dissipation

Date: 07:30:14 14:07 Sounding: CPT-07 :T10F15U0 qt (tsf) fs (tsf) u (ft) Rf (%) SBT 0 100 200 300 400 0.0 1.0 2.0 3.0 4.0 0 100 200 300 0.0 2.0 4.0 6.0 8.0 0 6 12 Ueq=48.6' 55 Gravelly y y 60 Gravelly y / 65 70 Ueq=69.7' y y Depth (feet) 75 y 80 Ueq=90.5' y 85 y 90 95 Ueq=110.0' y y y y / Gravelly 100 Ueq=119.8' Max Depth: 30.0 m / 100.06 ft Depth Inc: 0.0 m / 0.164 ft Avg Int: 0.1 m File: 14-52067_CP07.COR Unit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997 Coords: Lat: 41.738567 Long: -111.892833 Equilibrium Pore Pressure from Dissipation

qt (tsf) 0 100 200 300 400 0 fs (tsf) 0.0 1.0 2.0 3.0 4.0 Date: 07:30:14 14:05 u (ft) 0 100 200 300 Rf (%) 0.0 2.0 4.0 6.0 8.0 Sounding: CPT-08 :T10F15U0 SBT 0 6 12 y y / 5 Clayey 10 15 Clayey 20 Sensitive Fines y Clay Depth (feet) 25 Sensitive Fines Clayey Clayey 30 y y / y 35 Clayey Ueq=36.4' 40 y / y Clay 45 Max Depth: 21.3 m / 70.05 ft Depth Inc: 0.0 m / 0.164 ft Avg Int: 0.1 m File: 14-52067_CP08.COR Unit Wt: SBT Chart Soil Zones Ueq=48.9' Clayey Clay Clayey y y y / SBT: Lunne, Robertson and Powell, 1997 Coords: Lat: 41.7390 Long: -111.892383 Equilibrium Pore Pressure from Dissipation

Ueq=36.4' IGES qt (tsf) 0 100 200 300 400 55 60 fs (tsf) 0.0 1.0 2.0 3.0 4.0 Date: 07:30:14 14:05 u (ft) 0 100 200 300 Ueq=48.9' Ueq=57.8' Rf (%) 0.0 2.0 4.0 6.0 8.0 Sounding: CPT-08 :T10F15U0 SBT 0 6 12 y y Gravelly y / y Gravelly 65 70 y y Depth (feet) 75 80 85 90 95 100 Max Depth: 21.3 m / 70.05 ft Depth Inc: 0.0 m / 0.164 ft Avg Int: 0.1 m File: 14-52067_CP08.COR Unit Wt: SBT Chart Soil Zones SBT: Lunne, Robertson and Powell, 1997 Coords: Lat: 41.7390 Long: -111.892383 Equilibrium Pore Pressure from Dissipation

PPD Plots

Date: 30-Jul-2014 11:54:31 Sounding: CPT-03 40.0 30.0 20.0 10.0 0.0 0 100 200 300 400 0 600 Filename: 14-52067_CP03.PPD Depth: 10.0 m / 32.972 ft Duration: 600.0 s U Min: 11.3 ft U Max: 27.4 ft WT: 1.817 m / 5.960 ft Ueq: 27.0 ft

Date: 30-Jul-2014 11:54:31 Sounding: CPT-03 80.0 60.0 40.0 20.0 0.0 0 200 400 600 800 Filename: 14-52067_CP03.PPD Depth: 15.0 m /.852 ft Duration: 800.0 s U Min: 17.9 ft U Max: 48.0 ft WT: 1.035 m / 3.395 ft Ueq: 47.5 ft

Date: 30-Jul-2014 11:54:31 Sounding: CPT-03 100 75 25 0 0 100 200 300 400 Filename: 14-52067_CP03.PPD Depth: 20.2 m / 66.436 ft Duration: 400.0 s U Min: 55.4 ft U Max: 74.7 ft WT: 0.464 m / 1.522 ft Ueq: 64.9 ft

Date: 31-Jul-2014 09:02:49 Sounding: CPT-04 80.0 60.0 40.0 20.0 0.0 0 100 1 200 2 300 Filename: 14-52067_CP04.PPD Depth: 15.5 m / 51.016 ft Duration: 300.0 s U Min: 11.2 ft U Max: 52.5 ft WT: 1.834 m / 6.017 ft Ueq: 45.0 ft

Date: 31-Jul-2014 09:02:49 Sounding: CPT-04 100 75 25 0 0 100 200 300 400 Filename: 14-52067_CP04.PPD Depth: 20.900 m / 68.569 ft Duration: 400.0 s U Min: 28.4 ft U Max: 73.8 ft WT: -0.023 m / -0.075 ft Ueq: 68.6 ft

Date: 31-Jul-2014 09:02:49 Sounding: CPT-04 1 100 0 0 100 200 300 400 Filename: 14-52067_CP04.PPD Depth: 24.0 m / 80.380 ft Duration: 400.0 s U Min: 30.4 ft U Max: 98.8 ft WT: -3.784 m / -12.416 ft Ueq: 92.8 ft

Date: 31-Jul-2014 09:02:49 Sounding: CPT-04 1 100 0 0 200 400 600 800 Filename: 14-52067_CP04.PPD Depth: 28.1 m / 92.355 ft Duration: 800.0 s U Min: 34.9 ft U Max: 106.9 ft WT: -4.396 m / -14.424 ft Ueq: 106.8 ft

Date: 31-Jul-2014 09:02:49 Sounding: CPT-04 1 100 0 0 200 400 600 Filename: 14-52067_CP04.PPD Depth: 29.7 m / 97.604 ft Duration: 610.0 s U Min: 88.0 ft U Max: 111.7 ft WT: -4.191 m / -13.751 ft Ueq: 111.4 ft

Date: 31-Jul-2014 08:11:02 Sounding: CPT-05 40.0 30.0 20.0 10.0 0.0 0 100 1 200 2 300 Filename: 14-52067_CP05.PPD Depth: 9.8 m / 32.316 ft Duration: 300.0 s U Min: 3.6 ft U Max: 25.2 ft WT: 2.295 m / 7.528 ft Ueq: 24.8 ft

Date: 31-Jul-2014 08:11:02 Sounding: CPT-05 80.0 60.0 40.0 20.0 0.0 0 100 200 300 400 Filename: 14-52067_CP05.PPD Depth: 16.400 m / 53.805 ft Duration: 400.0 s U Min: 43.0 ft U Max:.1 ft WT: 2.142 m / 7.026 ft Ueq: 46.8 ft

Date: 30-Jul-2014 11:56:46 Sounding: CPT-06 60.0 40.0 20.0 0.0 0 100 200 300 400 Filename: 14-52067_CP06.PPD Depth: 11.9 m / 39.206 ft Duration: 400.0 s U Min: 27.2 ft U Max: 38.5 ft WT: 0.275 m / 0.901 ft Ueq: 38.3 ft

Date: 30-Jul-2014 11:56:46 Sounding: CPT-06 100 75 25 0 0 100 1 200 2 300 Filename: 14-52067_CP06.PPD Depth: 20.000 m / 65.616 ft Duration: 300.0 s U Min: 64.6 ft U Max: 78.6 ft WT: 0.265 m / 0.871 ft Ueq: 64.7 ft

Date: 30-Jul-2014 14:07:27 Sounding: CPT-07.0 40.0 30.0 20.0 10.0 0.0-10.0 0 100 200 300 400 0 Filename: 14-52067_CP07.PPD Depth: 10.6 m / 34.941 ft Duration: 0.0 s U Min: -1.6 ft U Max: 28.5 ft WT: 2.161 m / 7.091 ft Ueq: 27.8 ft

Date: 30-Jul-2014 14:07:27 Sounding: CPT-07 80.0 60.0 40.0 20.0 0.0 0 100 1 200 2 300 Filename: 14-52067_CP07.PPD Depth: 16.0 m / 52.657 ft Duration: 300.0 s U Min: 5.3 ft U Max:.0 ft WT: 1.230 m / 4.035 ft Ueq: 48.6 ft

Date: 30-Jul-2014 14:07:27 Sounding: CPT-07 100 75 25 0 0 100 200 300 400 Filename: 14-52067_CP07.PPD Depth: 21.2 m / 69.717 ft Duration: 400.0 s U Min: 6.4 ft U Max: 83.3 ft WT: 0.004 m / 0.014 ft Ueq: 69.7 ft

Date: 30-Jul-2014 14:07:27 Sounding: CPT-07 1 100 0 0 100 200 300 400 Filename: 14-52067_CP07.PPD Depth: 24.900 m / 81.692 ft Duration: 400.0 s U Min: 2.8 ft U Max: 92.7 ft WT: -2.674 m / -8.773 ft Ueq: 90.5 ft

Date: 30-Jul-2014 14:07:27 Sounding: CPT-07 1 100 0 0 100 200 300 400 0 Filename: 14-52067_CP07.PPD Depth: 28.300 m / 92.847 ft Duration: 0.0 s U Min: 30.4 ft U Max: 127.4 ft WT: -5.215 m / -17.110 ft Ueq: 110.0 ft

Date: 30-Jul-2014 14:07:27 Sounding: CPT-07 400 300 200 100 0 0 100 200 300 400 0 Filename: 14-52067_CP07.PPD Depth: 30.0 m / 100.064 ft Duration: 0.0 s U Min: 119.7 ft U Max: 324.6 ft WT: -6.018 m / -19.743 ft Ueq: 119.8 ft

Date: 30-Jul-2014 14:05:30 Sounding: CPT-08 60.0 40.0 20.0 0.0 0 100 1 200 2 300 Filename: 14-52067_CP08.PPD Depth: 11.300 m / 37.073 ft Duration: 300.0 s U Min: 30.4 ft U Max: 36.9 ft WT: 0.193 m / 0.633 ft Ueq: 36.4 ft

Date: 30-Jul-2014 14:05:30 Sounding: CPT-08 80.0 60.0 40.0 20.0 0.0 0 100 1 200 2 300 Filename: 14-52067_CP08.PPD Depth: 15.7 m / 51.673 ft Duration: 300.0 s U Min: 17.6 ft U Max: 49.3 ft WT: 0.833 m / 2.733 ft Ueq: 48.9 ft

Date: 30-Jul-2014 14:05:30 Sounding: CPT-08 80.0 60.0 40.0 20.0 0.0 0 100 1 200 2 300 Filename: 14-52067_CP08.PPD Depth: 18.300 m / 60.039 ft Duration: 300.0 s U Min: 25.2 ft U Max: 58.3 ft WT: 0.671 m / 2.200 ft Ueq: 57.8 ft