S-10-0164 Attachment 21 Eagle Lake WWTP 2009 Draft HydroGeologic Investigation Report.pdf

December 8, 2009

Leslie Solberg Contracting Officer U.S. Forest Service Sierra Cascade Province Acquisitions Lassen National Forest 2550 Riverside Dr.

Susanville, CA 96130

SUBJECT: Eagle Lake Ranger District Sewage Pond Shallow Hydrogeologic

Investigation Draft Report, Contract No. AG-9JNE-C-09-0052

Dear Ms. Solberg:

On behalf of Cascade Earth Sciences (CES), we are pleased to provide this draft report to the U.S. Department of Agriculture, Forest Service (Forest Service) on the Lassen National Forest, Eagle Lake Ranger District Sewage Pond Shallow Hydrogeologic Investigation.

Project Background The Lassen National Forest (LNF) operates a sewage treatment facility to service campground facilities along the south shore of Eagle Lake. The facility has two primary ponds and three evaporation ponds. The LNF is in the process of testing the ponds for leakage and planning for replacement of the existing pond liners, with the possibility of adding additional evaporation pond capacity. As a matter of compliance with California Regional Water Quality Control Board requirements, LNF is conducting a soil and groundwater investigation to determine whether leakage from the sewage ponds has occurred.

Scope of Work CES was contracted to complete the soil and groundwater investigation. The scope of work includes the following tasks:

1. Drill six boreholes through soil to bedrock or ten foot depth

2. Collect soil samples and analyze in a laboratory for texture and permeability

3. Collect a soil sample from each borehole and analyze in a laboratory for nitrate-nitrogen

(NO3-N), total Kjeldahl nitrogen (TKN), total nitrogen (computed as nitrate plus TKN), and pH

4. Complete four boreholes as groundwater monitoring wells

5. Determine groundwater elevations from at least three monitoring points, if possible, and determine groundwater gradient and groundwater flow direction.

6. Collect groundwater samples, including a field/travel blank and a split sample, and

Ms. Leslie Solberg, U.S. Forest Service Eagle Lake Ranger District Sewage Pond Shallow Hydrogeologic Investigation Draft Report analyze in a laboratory for NO3-N, TKN, total nitrogen (computed as NO3-N plus TKN), pH, total dissolved solids, chloride, total coliform, and fecal coliform.

7. Prepare a summary report and a groundwater monitoring plan

The following provides the draft summary report on the project.

Monitoring Well Construction On October 20 and 21, 2009, RSI Drilling advanced soil borings at six locations around the wastewater ponds to depths of 10 to 20 feet below ground surface (bgs). Approximate boring locations are indicated in Figure 1. Four of the borings were completed as monitoring wells.

The soil boring logs and monitoring well construction details are provided in Attachment A.

The latitude and longitude of each sampling location was recorded using a Garmin GPSII Plus handheld global positioning system. Coordinates of sampling locations are provided in Table 1.

Soil Sampling Soil samples were collected using a combination direct push/hollow stem auger drilling unit.

One soil sample from each of the soil borings was submitted to Sierra Environmental Monitoring for analysis of total nitrogen, nitrate, TKN and paste pH. A duplicate sample from MW-4 was analyzed for Quality Assurance/Quality Control purposes. Two soil samples from each of the six borings were collected for permeability and texture analyses and submitted to AMEC Earth and Environmental geotechnical testing laboratory.

Soil Analyses Results

Results of soil analyses from Sierra Environmental Monitoring are summarized in Table 2, and laboratory reports are provided in Attachment B. Soil samples had low NO3-N concentrations, ranging from not detected above the laboratory method detection limit (MDL) of 0.5 milligrams per kilogram (mg/Kg) for soil from Boring #1, Boring #3, and Boring #5, to 1.3 mg/Kg for soil from Boring #4. Soil TKN and total nitrogen values ranged from non-detect (< 100 mg/Kg) for soil from Boring #5, to 380 mg/Kg for soil from MW-2. Soil paste pH values ranged from 5.90 to 7.59.

The results from AMEC Earth and Environmental Laboratories, for permeability and texture, are summarized in Table 3, and laboratory reports are provided in Attachment C. All soil samples had greater than 50% silt and clay content and were visually classified as lean clay, with the exception of soil from Boring #6, which was classified as clayey sand and was the only boring in the forested soils upslope (west) of the ponds. With the exception of Boring #6, the silt and clay content of the soil generally increased with depth up to about nine feet bgs, with higher clay content in the deeper samples. Permeability of the silt and clay soils (Boring #1 - #5) ranged from about 10-5 to 10-7 centimeters per second (cm/sec), and generally decreased with depth. All soil samples below nine feet bgs, which were lean clay extending to the maximum boring depth of 20 feet bgs, had permeability of about 10-7 cm/sec, except for soils from Boring #6.

Hydrogeologic Investigation Draft Report

Permeability of the clayey sand in Boring #6 was about 10-4 cm/sec. As reference, a permeability of 10-7 cm/sec is a typical design specification for clay pond liners.

Water Sampling On November 10, 2009, all four monitoring wells were checked for the presence of water using a water level meter. Only MW-4 contained water, which occurred at a depth of 18.97 feet below the top of casing (16.47 feet bgs). Only one static water level could be measured, therefore a groundwater flow direction could not be determined.

The well was purged of all recoverable water, which amounted to approximately one boring-volume, using a dedicated disposable hand-bailer. A sample of the purged water was collected for NO3-N, TKN, total nitrogen, chloride, pH and total dissolved solids (TDS) analyses. Well recovery was extremely slow, and after three hours, the well had not recovered enough to provide the volume of water required for the analyses. Furthermore, because the holding time for fecal coliform is eight hours, samples must be submitted to the lab on the same day as collection. Therefore, samples had to be collected the next day when well recovery was sufficient to collect a sample for fecal coliform and the other parameters.

On November 11, 2009, enough water was present in MW-4 for collection of a single sample set, as well as a duplicate sample for fecal coliform and total coliform. There was not enough water present to collect a duplicate sample for the other parameters. The sample set was collected using a new disposable hand-bailer, and included all samples for required analyses. There was insufficient water present to collect a complete duplicate sample for NO3-N, TKN, total nitrogen, chloride, pH and TDS analyses; therefore, groundwater samples collected during purging of the well on November 10, 2009 was submitted for these analyses, along with the duplicate samples for fecal coliform and total coliform analyses collected on November 11, 2009. For Quality Assurance/Quality Control purposes, a distilled water field/travel blank was also collected and submitted for analysis. Water samples were collected in containers supplied by Sierra Environmental Monitoring, a California Environmental Laboratory Accreditation Program (ELAP) certified laboratory, and delivered on November 11, 2009.

Water Analyses Results

Results of water analyses are summarized in Table 4, and laboratory reports are provided in Attachment D. The water samples had relatively high concentrations of chloride and TDS that may be related to well installation; additional sampling is recommended to further assess this.

The chloride concentration in MW-4, 230 milligrams per liter (mg/L) was higher than the chloride concentrations in all except one of the 17 pond and under-pond drain samples, as reported in Summer 2008 monitoring results, the most recent results available from the USFS, and which varied from 6 mg/L to 360 mg/L. The exception was one sample from Evaporation Pond #3, collected in August 2008, which had a chloride concentration of 360 mg/L. The TDS concentration in MW-4 (640 mg/L) was similar to some of the Summer 2008 pond and under-drain samples, but which varied from about 200 mg/L to over 1,000 mg/L. The NO3-N

Hydrogeologic Investigation Draft Report concentration (5.1 mg/L) was higher than all but three of the 17 summer 2008 pond and under-drain samples, which varied from below the MDL to 9.1 mg/L.

A relatively high concentration of total coliform bacteria, but not fecal coliform, was detected in MW-4 at 480,000 colony forming units per 100 mL (cfu/100 mL). The high concentration of total coliform in the duplicate water sample may have been due to the recent well installation in the clay soils, which had occurred within three weeks of sampling. Water containing coliform bacteria from the well installation may not have had time to disperse due to the clay content of the well. The concentration of fecal coliform was below the MDL of 10 cfu/100 mL, most likely indicating that the total coliform concentration detected from MW-4 may not have been from wastewater sources. Additional sampling and analyses is therefore recommended to further assess the coliform concentrations.

Quality Assurance/Quality Control

Quality Assurance/Quality Control Precision for the duplicate samples of soil and water collected from MW-4 was determined for each of the parameters analyzed by the laboratory.

Precision is measured by the relative percent difference (RPD) between the sample and the duplicate of that sample. Calculated RPDs for each soil parameter analyzed are presented in Table 3 and Table 4 for each water parameter analyzed.

RPDs were calculated using the following formula:

Where:

Test 1 is the laboratory analytical result of the original sample Test 2 is the result of the laboratory analysis of the field blind duplicate sample Test1 – Test2 is the difference of the two tests (Test1 + Test2)/2 is the mean of the two tests The absolute value of the result (times 100%) is the RPD

The calculated RPDs for the parameters varied from 1.7 to 27% for the original and duplicate soil sample, and 0 to 45% for the original and duplicate water sample. Less precision is expected in soil samples than in water sample due to natural variability. The highest variation for the water samples was observed in the total coliform test. Less precision is expected in the total coliform tests due to natural variability. The remaining RPDs were all equal to or below 15%, and most were within 0% to 5%; therefore, there were no issues with regard to field precision during this sampling event.

The distilled water field/travel blank results were all below the MDL, except for TKN, for which a value of 0.4 mg/L was reported. The reason for the TKN value in the field/travel blank is not known. Sierra Environmental Monitoring reported good internal Quality Assurance/Quality Control results for all parameters analyzed.

( )( )2/2Test1Test

2Test1TestRPD

FIGURE

Figure 1. Locations of Soil Borings

TABLES

Table 1. Coordinates of Monitoring Wells and Soil Borings Table 2. Summary of Soil Analyses Table 3. Summary of Soil Permeability and Texture Analyses Table 4. Summary of Water Analyses

Table 1. Coordinates of Monitoring Wells and Soil Borings U.S. Forest Service - Lassen National Forest

Sampling Location Latitude Longitude Boring #1/MW-1 N 40° 32.315' W 120° 50.769'

Borning #2/MW-2 N 40° 32.218' W 120° 50.646' Boring #3/MW-3 N 40° 32.213' W 120° 50.753' Boring #4/MW-4 N 40° 32.310' W 120° 50.645'

Boring #5 N 40° 32.264' W 120° 50.646' Boring #6 N 40° 32.285' W 120° 50.795'

NOTES:

MW = monitoring well

Cascade Earth Sciences - Reno, NV PN: 2009230007/Doc: 2009230007 Lassen NF Tables

Eagle Lake Hydrofeologic Investigation/ December 2009

Table 2. Summary of Soil Analyses

Depth Soil Paste pH Nitrate-N TKN Total-N feet bgs s.u. mg/Kg

Boring #1 10 5.90 <0.5 140 140 Borning #2 10 7.45 0.5 380 380 Boring #3 10 7.54 <0.5 170 170 Boring #4 19 6.61 1.3 290 290

Boring #4 Dup 19 6.72 1.1 220 220 Boring #5 10 7.59 <0.5 <100 <100 Boring #6 11 6.59 0.9 170 170

RPD, % 11 1.65 16.67 27.45 27.45

NOTES:

Samples were collected on November 10-11, 2009, and analysed by Sierra Environmental Monitoring

Sampling Location

MW = monitoring well, bgs = below ground surface, TKN = Total Kjeldahl Nitrogen, Dup = Duplicate, mg/Kg = milligrams per kilogram, <= no detected above the listed laboratory method detection limit, s.u. = standard units, RPD = relative percent difference between Boring #4 results and Boring #4 Dup results

Cascade Earth Sciences - Reno, NV PN: 2009230007/Doc: 2009230007 Lassen NF Tables

Eagle Lake Hydrogeologic Investigation/ December 2009

Table 3. Summary of Soil Permeability and Texture Analyses

Sampling Location Permeability Sample Depth (feet bgs)

Field Moisture

Dry Bulk Density (lbs/ft3)

Permeability (cm/sec)

Texture Sample Depth (feet bgs)

Texture, silt plus clay (% passing 200 mesh)

Boring #1 3.5-4.0 14.1 81.0 2.39 x 10-5 0.0-4.0 54.9 Boring #1 6.5-7.0 24.0 70.7 1.35 x 10-5 4.0-7.0 74.4 Boring #2 6.5-7.0 26.3 60.1 8.69 x 10-5 4.0-6.0 67.6 Boring #2 8.0-8.5 33.4 77.7 7.37 x 10-5 8.0-12.0 77.4 Boring #3 6.0-6.5 27.3 85.9 7.61 x 10-5 2.0-6.0 71.5 Boring #3 9.5-10.0 22.1 90.5 2.57 x 10-7 6.0-10.0 76.5 Boring #4 11.5-12.0 61.7 63.0 1.68 x 10-7 8.0-12.0 83.8 Boring #4 15.5-16.0 44.0 82.4 2.05 x 10-7 12.0-16.0 80.5 Boring #5 7.5-8.0 27.9 78.2 8.74 x 10-7 7.5-8.0 53.8 Boring #5 19.5-20.0 45.7 74.8 2.13 x 10-7 19.5-20.0 72.4 Boring #6 7.5-8.0 22.5 75.5 2.35 x 10-4 7.5-8.0 48.0 Boring #6 10.0-10.5 33.8 72.2 1.34 x 10-4 10.5-11.0 29.1

NOTES:

bgs = below ground surface, lbs/ft3 = pounds per cubic foot, % = percent, cm/sec = centimeter per second Samples were collected on November 10-11, 2009 and analysed by AMEC Earth & Environmental

Cascade Earth Sciences - Reno, NV PN: 2009230007/Doc: 2009230007 Lassen NF Tables

Table 4. Summary of Water Analyses

Data Sampled pH Nitrate-N TKN Total-N Chloride TDS Total Coliform Fecal Coliform

MW-4-A 11/10/2009 8.04 5.1 0.8 5.9 230 640

MW-4-A 11/11/2009 480,000 <10

MW-4-B 11/11/2009 8.03 5.5 0.7 6.2 240 700 760,000 <10

FB 11/11/2009 4.98 <0.05 0.4 <0.5 <0.5 <10 <2 <2

RPD, % 0.12 7.55 13.33 4.96 4.26 8.96 45.16 0

NOTES:

mg/L cfu/100 mL Sampling Location

< = less than the listed laboratory method detection limit, bgs = below ground surface, cfu = colony forming units, FB = field/travel blank, N/A = not applicable, MW = monitoring well, TKN = Total Kjeldahl Nitrogen, TDS = Total dissolved solids, mg/L = milligrams per liter, mL = milliliters, RPD = relative percent difference between MW-4-A results and MW- 4-B results

Cascade Earth Sciences - Reno, NV PN: 2009230007/Doc: 2009230007 Lassen NF Tables

ATTACHMENT

Attachment A. Monitoring Well Soil Boring Logs and Well Construction Details Attachment B. Soil Analyses Results from Sierra Environmental Monitoring Attachment C. Permeability and Texture Results from AMEC Earth & Environmental Attachment D. Water Analyses Results from Sierra Environmental Monitoring

Attachment A.

Monitoring Well Soil Boring Logs and Well Construction Details

Attachment B.

Soil Analyses Results from Sierra Environmental Monitoring

Laboratory Report Report ID: 101758

Cascade Earth Sciences

Attn: Patrick Plumb 955 S. Virginia St., Suite 107

Reno, NV 89502

Date:

Client:

Taken by:

PO#:

Sierra Environmental Monitoring, Inc.

1112/2009

CES-91 022

Plumb/Ray

200923007

Dear Patrick Plumb, It is the policy of Sierra Environmental Monitoring, Inc to strictly adhere to a comprehensive Quality Assurance Plan that insures the data presented in this report are both accurate and precise. Sierra Environmental Monitoring, Inc. maintains accreditation in the State of Nevada (NV-15) and the State of California (ELAP 2526).

The data presented in this report were obtained from the analysis of samples received under a chain of custody. Unless otherwise noted below, samples were received in good condition, properly preserved and within the hold time for the requested analyses. Any anomalies associated with the analysis of the samples have been flagged with appropriate explanation in the Analysis Report section of this Laboratory Report.

General Comments:

- There are no general comments for this report.

Individual Sample Comments:

- There are no specific comments that are associated with these samples.

Date:

11/2/2009

This report is applicable only to the sample received by the laboratory. The liability of the laboratory is limited to the amount paid for this report. This report is for the exclusive use of the client to whom it is addressed and upon the condition that the client assumes aU liability for the further distribution of the report or its contents.

John Kobza, Ph.D.

Laboratory Director

1135 Financial Blvd.

Reno, NV 89502-2348 Phone (775) 857-2400

FAX (775) 857-2404

sem @sem-analytical.com

John C. Seher Special Consultant Quality Assurance Manager

Cascade Earth Sciences Attn: Patrick Plumb

955 S. Virginia St., Suite 107

Reno, NV 89502

Date:

Client:

Taken by:

PO#:

Sierra Environmental Monitoring, Inc.

1112/2009

CES-91022

Plumb/Ray

200923007

Analysis Report

Sample ID:

S200910-1109

Customer Sample ID

MW-I-lO Date Sampled

10/2112009 Time Sampled Date Received

I :00 PM 10/22/2009

Reporting Date Data

Parameter Method Result Units Limit Analyst Analyzed Flag Kjeldahl Nitrogen - DigestioniAnalys SM 4500 N(org) 140 mgIKgN 100 Pacheco 10/30/2009 Nitrate-N - Ion Chromatography EPA 300.0 <0.5 mgIKgN 0.5 Faulstich 10/2312009 pH - Saturated Paste SW-8469045A 5.90 pH Units VanRy 10/23/2009 pH - Temperature SW-8469045A 20.6 °C VanRy 10123/2009 Sample Preparation - Aqueous Extrac SEM- SOP Completed Faulstich 10/2312009 Total Nitrogen as N Total by Sum 140 mgIKgN Seher 11/212009

Sample ID: Customer Sample ID Date Sampled Time Sampled Date Received

S200910-111O MW-2-10 10/20/2009 10:30 AM 10/22/2009

Reporting Date Data Parameter Method Result Units Limit Analyst Analyzed Flag

Kjeldahl Nitrogen - Digestion/Analys SM 4500 N(org) 380 mgIKgN 100 Pacheco 10/2312009 Nitrate-N - Ion Chromatography EPA 300.0 0.5 mg/KgN 0.5 Faulstich 10/2312009 pH - Saturated Paste SW-8469045A 7.45 pH Units VanRy 1012312009 pH - Temperature SW-8469045A 20.7 °C VanRy 10123/2009 Sample Preparation - Aqueous Extrac SEM - SOP Completed Faulstich 10/2312009 Total Nitrogen as N Total by Sum 380 mgIKgN Seher 11/2/2009

Sample ID: Customer Sample ID Date Sampled Time Sampled Date Received

S200910-1111 MW-3-10 10/20/2009 1:30 PM 10/22/2009

Reporting Date Data Parameter Method Result Units Limit Analyst Analyzed Flag

Kjeldahl Nitrogen - DigestioniAnalys SM 4500 N(org) 170 mgIKgN 100 Pacheco 10/23/2009 Nitrate-N - Ion Chromatography EPA 300.0 <0.5 mglKgN 0.5 Faulstich 10/23/2009 pH - Saturated Paste SW-8469045A 7.54 pH Units VanRy 10/23/2009 pH - Temperature SW-8469045A 20.7 °C VanRy 10123/2009 Sample Preparation - Aqueous Extrac SEM - SOP Completed Faulstich 10123/2009 Total Nitrogen as N Total by Sum 170 mgIKgN Seher 11/2/2009

John Kobza, Ph.D.

Laboratory Director

1135 Financial Blvd.

Reno, NV 89502-2348 Phone (775)857-2400

FAX (775) 857-2404

sem @8em-analytical.com

John C. Seher

Cascade Earth Sciences

Attn: Patrick Plwnb

955 S. Virginia St., Suite 107

Reno, NV 89502

Date:

Client:

Taken by:

PO#:

Sierra Environmental Monitoring, Inc.

1112/2009

CES-91022

Plumb/Ray

200923007

Analysis Report ~

Sample ID:

S200910-1112

Customer Sample ID

MW-4-19

Date Sampled 10/21/2009

Time Sampled Date Received

10:00 AM 10/22/2009

Reporting Date Data Parameter Method Result Units Limit Analyst Analyzed Flag

Kjeldahl Nitrogen - DigestioniAnalys SM 4500 N(org) 290 mg/KgN 100 Pacheco 10/30/2009 Nitrate-N - Ion Chromatography EPA 300.0 1.3 mg/KgN 0.5 Faulstich 10123/2009 pH - Saturated Paste SW-8469045A 6.61 pH Units VanRy 10123/2009 pH - Temperature SW-8469045A 20.7 °C VanRy 10123/2009 Sample Preparation - Aqueous Extrac SEM- SOP Completed Faulstich 10/23/2009 Total Nitrogen as N Total by Sum 290 mg/KgN Seher 11/2/2009

Sample ID: Customer Sample ID Date Sampled Time Sampled Date Received

S200910-1113 Boring-5-10 10/20/2009 2:30 PM 10/2212009

Reporting Date Data Parameter Method Result Units Limit Analyst Analyzed Flag

Kjeldahl Nitrogen - DigestioniAnalys SM 4500 N(otg) <100 mg/KgN 100 Pacheco 10/2312009 Nitrate-N - Ion Chromatography EPA 300.0 <0.5 mg/KgN 0.5 Faulstich 10123/2009 pH - Saturated Paste SW-8469045A 7.59 pH Units VanRy 10/2312009 pH - Temperature SW-8469045A 20.9 °C VanRy 10/23/2009 Sample Preparation - Aqueous Extrac SEM- SOP Completed Faulstich 10123/2009 Total Nitrogen as N Total by Sum <100 mg/KgN Seher 11/2/2009

Sample ID: Customer Sample ID Date Sampled Time Sampled Date Received

S200910-1114 Boring-6-11 10/21/2009 3:00 PM 10/22/2009

Reporting Date Data Parameter Method Result Units Limit Analyst Analyzed Flag

Kjeldahl Nitrogen - Digestion/Analys SM 4500 N(org) 170 mg/KgN 100 Pacheco 10123/2009 Nitrate-N - Ion Chromatography EPA 300.0 0.9 mg/KgN 0.5 Faulstich 10/23/2009 pH - Saturated Paste SW-8469045A 6.59 pH Units VanRy 10/23/2009 pH - Temperature SW-8469045A 20.6 °C VanRy 10/23/2009 Sample Preparation - Aqueous Extrac SEM- SOP Completed Faulstich 10/23/2009 Total Nitrogen as N Total by Sum 170 mg/KgN Seher 11/2/2009

John Kobza, Ph.D.

Laboratory Director

1135 Financial Blvd.

Reno, NV 89502-2348 Phone (775) 857-2400

FAX (775) 857-2404

sem @sem-analytical.com

John C. Seher

Cascade Earth Sciences Attn: Patrick Plumb

955 S. Virginia St., Suite 107

Reno, NV 89502

Laboratory Report Report ID: 101758

_-Analysis Report -

Date:

Client:

Taken by:

PO#:

Sierra Environmental Monitoring, Inc.

1112/2009

CES-91022

Plumb/Ray

200923007

Sample ID:

S20091O-1158

Parameter Method

Customer Sample ID

MW-4-19 - DUP

Result Units

Date Sampled

10/2112009

Reporting Limit

Time Sampled Date Received

10:00 AM 10/22/2009

Analyst Date

Analyzed Data Flag

Kjeldahl Nitrogen - Digestion/Analys Nitrate-N - Ion Chromatography pH - Saturated Paste pH - Temperature Sample Preparation - Aqueous Extrac Total Nitrogen as N

SM 4500 N(org)

EPA 300.0

SW-846 9045A

SW-8469045A

SEM- SOP

Total by Sum

1.1

6.72 20.0

Completed mglKgN mg/KgN pH Units

°C mg/KgN

0.5

Pacheco Faulstich VanRy VanRy

Faulstich Seher

10/3012009 1012312009 10127/2009 10127/2009 10123/2009 1112/2009

I Data Flag Legend:

John Kobza, Ph.D.

Laboratory Director

1135 Financial Blvd.

Reno, NV 89502-2348 Phone (775) 857-2400

FAX (775) 857-2404

sem @sem-analytical.com

John C. Seher

Cascade Earth Sciences

Attn: Patrick Plumb

955 S. Virginia St., Suite 107

Reno, NV 89502

Date:

Client:

Taken by:

PO#:

Sierra Environmental Monitoring, Inc.

1112/2009

CES-91022

PlumblRay

200923007

Quality Control Report Parameter LCS,%

Recovery

MS,%

Recovery

MSD,%

Recovery

RPD,% Method Blank

Kjeldahl Nitrogen - Digestion/Anal Nitrate-N - Ion Chromatography pH - Saturated Paste pH - Saturated Paste pH - Temperature pH - Temperature

98.0 134.0

96.0 96.0

1.44

0.00 9.77 3.58 0.00 0.97

<100 mg/L <0.5 mg/Kg

Legend: LCS- Laboratory Control Standard RPD- Relative Percent Difference

MS- Matrix Spike MSD- Matrix Spike Duplicate

John Kobza, Ph.D.

Laboratory Director

1135 Financial Blvd.

Reno, NV 89502-2348 Phone (775) 857-2400

FAX (775) 857-2404

sem @sem-analytical.com

John C. Seher

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SIERRA 'ENVIRONMENTAL MONITORING, INC. CHAIN OF CUSTODY RECORD )O/7rJ5

1135 FINANCIAL BOULEVARD - RENO - NEVADA - 89502

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/ ,,/ )...:l..)':''""' SL~ j It, 'SS-, \ r=; .'.\ ()-., Custod~6al Intact c-: Samples are discarded 30 days after results are reported unless other arrangements are made.: Hazardous samples will be Yes No None returned to client or disposed of at client expense. The analytical results associated with this COC apply only to the samples as- - -- .

they are received by the laboratory. The liability of the laboratory is limited to the amount paid fOr the report. SEM COC

Sample Temperature Terms: Net thirty days on approved credit. Form Revised

1* KEY: Sample Type: 1=Drinking Water, 2=Surface Water, 3=Ground Water, 4=Waste Wa~er, 5=Soil, 6=RCRA, 7=Other 02/01

/10Degrees C Preservative: 1=NaOH, 2=NaOH + ZnOAC, 3=HN03, 4=H2S04, 5=Na2S203, 6=l'rIone, 7=Other

Attachment C.

Permeability and Texture Results from AMEC Earth & Environmental

AMEC Earth & Environmental, Inc.

780 Vista Boulevard, Suite 100 Sparks, Nevada

USA 89434-6656

Tel + 1 (775) 331-2375 Fax + 1 (775) 331-4153 www.amec.com

December 2, 2009 AMEC Project No. 9-419-000756

Cascade Earth Sciences 955 S. Virginia Street, Suite 107 Reno, Nevada 89502

Attention: Patrick Plumb, P.E.

Re: MISCELLANEOUS LABORATORY TESTING SERVICES

We are sending:

√ As requested √ For your use For comment Under separate cover

• Measurement of Hydraulic Conductivity of Saturated Porous Materials; Lab Nos. 1358A, C, E, G, I, K, M, O, Q, R, S and T; date sampled 10-20-09.

• Particle Size Distribution Reports; Sample Nos. 1358B, D, F, H, J, L, N, P, Q, R, S and T;

date sampled 10-20-09.

If you have questions, please do not hesitate to call the undersigned at (775) 331-2375.

Respectfully submitted, AMEC Earth & Environmental, Inc. Reviewed by, Michael P. Hawe, E.I.T. Brenda E. Hermes, E.I.

Laboratory Supervisor Project Manager

MPH/BEH/mm

Enclosures

J:\4-LAB\2009\09419\9419000756_CES\TRANSMITTALS\9-756_trans_1.doc

PROJECT: Miscellaneous Laboratory Testing PROJECT NO: 9419000756 CLIENT: Cascade Earth Sciences LAB NO: 1358A

CLIENT PROJECT NO: 2009230007 DATE SAMPLED: 10/20/2009

MATERIAL: Sandy Lean Clay (CL) (Visual) SAMPLED BY: Client

SOURCE: MW#1 (0'-4') TEST DEPTH: 3.5'-4.0'

SAMPLE PREPARATION: Sample tested in the in-situ condition. Tube cut with sample in place;

ends of tube were capped with porous material and then tested for permeability.

METHOD OF COMPACTION: Sample tested at the in-situ density and moisture content.

TESTING METHOD: Method B: Falling Head

FIELD MOISTURE (%): 14.1 LAB MOISTURE (%): N/A

INITIAL DIAMETER (cm): 5.055 FINAL DIAMETER (cm): 5.055

INITIAL LENGTH (cm): 8.747 FINAL LENGTH (cm): 8.747

INITIAL MOISTURE CONTENT (%): 16.7 FINAL MOISTURE CONTENT (%): 32.8

INITIAL DRY BULK DENSITY (lb/ft3): 81.0

% OF COMPACTION: N/A

FINAL DRY BULK DENSITY (lb/ft3): 81.0

AVERAGE Ksat * (cm/s): 2.39E-05 AVERAGE Ksat * (ft/day): 6.77E-02

MAXIMUM GRADIENT USED: 12.23

MINIMUM GRADIENT USED: 10.52

* Corrected to 20°C ** Modified - Sample tube used in lieu of 4" compaction mold.

Measurement of Hydraulic Conductivity of Saturated Porous Materials Using a Rigid-Wall Compaction Mold Permeameter (ASTM D 5856)**

J:\4-LAB\2009\09419\9419000756_CES\1358A_MW#1_0'-4'_FallingHeadPermB.xls

1358B

AMEC Earth & Environmental

Reno, NV

(no specification provided)*

PL= LL= PI=

USCS (D 2487)= AASHTO (M 145)=

D90= D85= D60= D50= D30= D15= D10= Cu= Cc=

Remarks

Sandy Lean Clay (CL) (Visual)

.750"

.500"

.375" #4 #8

#10 #16 #30 #40 #50

#100 #200

0.0305 mm.

0.0198 mm.

0.0117 mm.

0.0084 mm.

0.0060 mm.

0.0030 mm.

0.0013 mm.

100.0 95.4 92.6 87.9 84.9 84.2 83.1 78.8 74.7 70.0 62.0 54.9 44.3 39.6 34.1 30.1 27.0 22.3 15.2

6.7833 2.4017 0.1232

0.0492 0.0083

Plastic - rolls Bag Sample

10-27-09 10-28-09 Michael Hawe, S.E.T.

Brenda Hermes, E.I.

Project Manager

10-20-09

Cascade Earth Sciences Miscellaneous Lab Testing

9419000756

Material Description

Atterberg Limits (ASTM D 4318)

Classification

Coefficients

Date Received: Date Tested:

Tested By:

Checked By:

Title:

Date Sampled:Location: 2009230007 - MW#1 (0'-4') Sample Number: 1358B Depth: 0'-4.0'

Client:

Project:

Project No: Figure

Test Results (ASTM D 422 & ASTM D 1140)

Opening Percent Spec.* Pass?

Size Finer (Percent) (X=Fail)

P E

R C

E N

T

FI

N E

R

GRAIN SIZE - mm.

0.00010.0010.010.1110100

% +3" Coarse

% Gravel Fine Coarse Medium

% Sand Fine Silt

% Fines Clay

0.0 0.0 12.1 3.7 9.5 19.8 29.3 25.6 in in in

1½ in in

¾ in

½ in

3/ in

#4 #1

#2

#3

#4

#6

#1

#1

#2

Particle Size Distribution Report

CLIENT: Cascade Earth Sciences LAB NO: 1358C

CLIENT PROJECT NO: 2009230007 DATE SAMPLED: 10/20/2009

MATERIAL: Sandy Lean Clay (CL) (Visual) SAMPLED BY: Client

SOURCE: MW#1 (4'-7') TEST DEPTH: 6.5'-7.0'

SAMPLE PREPARATION: Sample tested in the as received moisture condition. Tube cut with sample in place;

ends of tube were capped with porous material and then tested for permeability.

METHOD OF COMPACTION: Sample tested at the in-situ density and moisture content.

TESTING METHOD: Method B: Falling Head

FIELD MOISTURE (%): 24 LAB MOISTURE (%): N/A

INITIAL DIAMETER (cm): 5.055 FINAL DIAMETER (cm): 5.055

INITIAL LENGTH (cm): 9.731 FINAL LENGTH (cm): 9.731

INITIAL MOISTURE CONTENT (%): 31.5 FINAL MOISTURE CONTENT (%): 52.3

INITIAL DRY BULK DENSITY (lb/ft3): 70.7

% OF COMPACTION: N/A

FINAL DRY BULK DENSITY (lb/ft3): 70.7

AVERAGE Ksat * (cm/s): 1.35E-05 AVERAGE Ksat * (ft/day): 3.84E-02

MAXIMUM GRADIENT USED: 12.33

MINIMUM GRADIENT USED: 10.79

*Corrected to 20°C ** Modified - Sample tube used in lieu of 4" compaction mold.

Measurement of Hydraulic Conductivity of Saturated Porous Materials

J:\4-LAB\2009\09419\9419000756_CES\1358C_MW#1_4'-7'_FallingHeadPermB.xls

1358D

& Environmental

Reno, NV

(no specification provided)*

PL= LL= PI=

USCS (D 2487)= AASHTO (M 145)=

D90= D85= D60= D50= D30= D15= D10= Cu= Cc=

Remarks

Sandy Lean Clay (CL) (Visual)

.375" #4 #8

#10 #16 #30 #40 #50

#100 #200

0.0292 mm.

0.0190 mm.

0.0113 mm.

0.0082 mm.

0.0059 mm.

0.0030 mm.

0.0013 mm.

100.0 99.2 97.0 96.2 95.6 92.6 89.8 86.6 80.8 74.4 59.9 53.8 45.8 40.6 35.3 28.3 22.2

0.4352 0.2511 0.0293

0.0148 0.0037

Plastic - Rolls Bag Sample

10-27-09 10-28-09 Michael Hawe, S.E.T.

Brenda Hermes, E.I.

Project Manager

10-20-09

Cascade Earth Sciences Miscellaneous Lab Testing

9419000756

Material Description

Atterberg Limits (ASTM D 4318)

Classification

Coefficients

Date Received: Date Tested:

Tested By:

Checked By:

Title:

Date Sampled:Location: 2009230007 - MW#1 (4'-7') Sample Number: 1358D Depth: 4'-7.0'

Client:

Project:

Project No: Figure

Test Results (ASTM D 422 & ASTM D 1140)

Opening Percent Spec.* Pass?

Size Finer (Percent) (X=Fail)

P E

R C

E N

T

FI

N E

R

GRAIN SIZE - mm.

0.00010.0010.010.1110100

% +3" Coarse

% Gravel Fine Coarse Medium

% Sand Fine Silt

% Fines Clay

0.0 0.0 0.8 3.0 6.4 15.4 41.3 33.1 in in in

1½ in in

¾ in

½ in

3/ in

#4 #1

#2

#3

#4

#6

#1

#1

#2

PROJECT: Miscellaneous Laboratory Testing JOB NO: 9419000756 CLIENT: Cascade Earth Sciences LAB NO: 1358E

CLIENT PROJECT NO: 2009230007 DATE SAMPLED: 10/20/2009

MATERIAL: Sandy Lean Clay (CL) (Visual) SAMPLED BY: Client

SOURCE: MW#2 (4'-7') TEST DEPTH: 6.5'-7.0'

SAMPLE PREPARATION: Sample tested in the in-situ condition. Tube cut with sample in place;

ends of tube were capped with porous material and then tested for permability.

METHOD OF COMPACTION: Sample tested at the in-situ density and moisture content.

TESTING METHOD: Method B: Falling Head

FIELD MOISTURE (%): 26.3 LAB MOISTURE (%): N/A

INITIAL DIAMETER (cm): 3.175 FINAL DIAMETER (cm): 3.175

INITIAL LENGTH (cm): 6.220 FINAL LENGTH (cm): 6.22

INITIAL MOISTURE CONTENT (%): 31.0 FINAL MOISTURE CONTENT (%): 62.0

INITIAL DRY BULK DENSITY (lb/ft3): 60.1

% OF COMPACTION: N/A

FINAL DRY BULK DENSITY (lb/ft3): 60.1

AVERAGE Ksat * (cm/s): 8.69E-05 AVERAGE Ksat * (ft/day): 2.46E-01

MAXIMUM GRADIENT USED: 18.81

MINIMUM GRADIENT USED: 16.40

* Corrected to 20°C ** Modified - Sample tube used in lieu of 4" compaction mold.

Measurement of Hydraulic Conductivity of Saturated Porous Materials

J:\4-LAB\2009\09419\9419000756_CES\1358E_MW#2_4'-7'_FallingHeadPermB.xls

1358F

& Environmental

Reno, NV

(no specification provided)*

PL= LL= PI=

USCS (D 2487)= AASHTO (M 145)=

D90= D85= D60= D50= D30= D15= D10= Cu= Cc=

Remarks

Sandy Lean Clay (CL) (Visual)

.375" #4 #8

#10 #16 #30 #40 #50

#100 #200

0.0292 mm.

0.0189 mm.

0.0112 mm.

0.0080 mm.

0.0058 mm.

0.0029 mm.

0.0012 mm.

100.0 99.9 98.9 98.4 96.5 89.1 85.0 80.7 73.8 67.6 57.3 52.1 47.0 42.6 39.2 31.5 27.1

0.6469 0.4266 0.0364

0.0151 0.0024

Plastic - Rolls Bag Sample

10-27-09 10-28-09 Michael Hawe, S.E.T.

Brenda Hermes, E.I.

Project Manager

10-20-09

Cascade Earth Sciences Miscellaneous Lab Testing

9419000756

Material Description

Atterberg Limits (ASTM D 4318)

Classification

Coefficients

Date Received: Date Tested:

Tested By:

Checked By:

Title:

Date Sampled:Location: 2009230007 - MW#2 (4'-6') Sample Number: 1358F Depth: 4'-6'

Client:

Project:

Project No: Figure

Test Results (ASTM D 422 & ASTM D 1140)

Opening Percent Spec.* Pass?

Size Finer (Percent) (X=Fail)

P E

R C

E N

T

FI

N E

R

GRAIN SIZE - mm.

0.00010.0010.010.1110100

% +3" Coarse

% Gravel Fine Coarse Medium

% Sand Fine Silt

% Fines Clay

0.0 0.0 0.1 1.5 13.4 17.4 30.0 37.6 in in in

1½ in in

¾ in

½ in

3/ in

#4 #1

#2

#3

#4

#6

#1

#1

#2

CLIENT: Cascade Earth Sciences LAB NO: 1358G

CLIENT PROJECT NO: 2009230007 DATE SAMPLED: 10/20/2009

MATERIAL: Sandy Lean Clay (CL) (Visual) SAMPLED BY: Client

SOURCE: MW#2 (7'-10') TEST DEPTH: 8.0'-8.5'

SAMPLE PREPARATION: Sample tested at the in-situ moisture content.

METHOD OF COMPACTION: Sample remolded and compacted to as-received wet density and moisture content.

TESTING METHOD: Method C: Falling Head Rising Tailwater

FIELD MOISTURE (%): 33.4 LAB MOISTURE (%): N/A

INITIAL DIAMETER (cm): 4.890 FINAL DIAMETER (cm): 4.890

INITIAL LENGTH (cm): 7.539 FINAL LENGTH (cm): 7.539

INITIAL MOISTURE CONTENT (%): 26.1 FINAL MOISTURE CONTENT (%): 42.1

CONSOLIDATED? (Y/N): Y FINAL CONFINING PRESSURE (psi): 5 CELL PRESSURE (psi): 70 BACKPRESSURE (psi): 65

INITIAL DRY BULK DENSITY (lb/ft3): 77.7

% OF COMPACTION: N/A

FINAL DRY BULK DENSITY (lb/ft3): 77.7

FINAL B PARAMETER READING: 0.86 FINAL BACKPRESSURE (psi): 65

AVERAGE Ksat * (cm/s): 7.37E-05 AVERAGE Ksat * (ft/day): 2.09E-01

MAXIMUM GRADIENT USED: 2.78

MINIMUM GRADIENT USED: 1.39

*Corrected to 20°C

Note: All final sample dimensions are subject to sample deformation caused by exsolution of air in pore water.

Channeling suspected in undisturbed sample tube test when tested in accordance with ASTM D5856. Sample material was remolded and tested in accordance with ASTM D5084. Results between testing in accordance with ASTM D5856 and ASTM D5084 showed results did not significantly differ.

Measurement of Hydraulic Conductivity of Saturated Porous Materials Using a Flexible Wall Permeameter (ASTM D 5084)

J:\4-LAB\2009\09419\9419000756_CES\1358G_MW#2_7'-10'_FlexPermC.xls

1358H

& Environmental

Reno, NV

(no specification provided)*

PL= LL= PI=

USCS (D 2487)= AASHTO (M 145)=

D90= D85= D60= D50= D30= D15= D10= Cu= Cc=

Remarks

Sandy Lean Clay (CL) (Visual)

.500"

.375" #4 #8

#10 #16 #30 #40 #50

#100 #200

0.0289 mm.

0.0186 mm.

0.0111 mm.

0.0080 mm.

0.0058 mm.

0.0029 mm.

0.0012 mm.

100.0 98.9 98.8 98.0 97.4 96.4 93.2 90.9 88.3 83.1 77.4 66.2 62.5 55.0 50.4 45.8 39.4 33.7

0.3765 0.1946 0.0153 0.0078

Plastic - Rolls Bag Sample

10-27-09 10-28-09 Michael Hawe, S.E.T.

Brenda Hermes, E.I.

Project Manager

10-20-09

Cascade Earth Sciences Miscellaneous Lab Testing

9419000756

Material Description

Atterberg Limits (ASTM D 4318)

Classification

Coefficients

Date Received: Date Tested:

Tested By:

Checked By:

Title:

Date Sampled:Location: 2009230007 - MW#2 (8'-10') Sample Number: 1358H Depth: 8'-10'

Client:

Project:

Project No: Figure

Test Results (ASTM D 422 & ASTM D 1140)

Opening Percent Spec.* Pass?

Size Finer (Percent) (X=Fail)

P E

R C

E N

T

FI

N E

R

GRAIN SIZE - mm.

0.00010.0010.010.1110100

% +3" Coarse

% Gravel Fine Coarse Medium

% Sand Fine Silt

% Fines Clay

0.0 0.0 1.2 1.4 6.5 13.5 33.3 44.1 in in in

1½ in in

¾ in

½ in

3/ in

#4 #1

#2

#3

#4

#6

#1

#1

#2

CLIENT: Cascade Earth Sciences LAB NO: 1358I

CLIENT PROJECT NO: 2009230007 DATE SAMPLED: 10/20/2009

MATERIAL: Sandy Lean Clay (CL) (Visual) SAMPLED BY: Client

SOURCE: MW#3 (3.5'-6.5') TEST DEPTH: 6.0'-6.5'

SAMPLE PREPARATION: Sample tested in the in-situ condition. Tube cut with sample in place;

ends of tube were capped with porous material and then tested for permeability.

METHOD OF COMPACTION: Sample tested at the in-situ density and moisture content.

TESTING METHOD: Method B: Falling Head

FIELD MOISTURE (%): 27.3 LAB MOISTURE (%): N/A

INITIAL DIAMETER (cm): 3.175 FINAL DIAMETER (cm): 3.175

INITIAL LENGTH (cm): 9.931 FINAL LENGTH (cm): 9.931

INITIAL MOISTURE CONTENT (%): 25.7 FINAL MOISTURE CONTENT (%): 39.3

INITIAL DRY BULK DENSITY (lb/ft3): 85.9

% OF COMPACTION: N/A

FINAL DRY BULK DENSITY (lb/ft3): 85.9

AVERAGE Ksat * (cm/s): 7.61E-05 AVERAGE Ksat * (ft/day): 2.16E-01

MAXIMUM GRADIENT USED: 11.42

MINIMUM GRADIENT USED: 9.91

* Corrected to 20°C ** Modified - Sample tube used in liew of 4" compaction mold.

Measurement of Hydraulic Conductivity of Saturated Porous Materials

J:\4-LAB\2009\09419\9419000756_CES\1358I_MW#3_3.5'-6.5'_FallingHeadPermB.xls

1358J

& Environmental

Reno, NV

(no specification provided)*

PL= LL= PI=

USCS (D 2487)= AASHTO (M 145)=

D90= D85= D60= D50= D30= D15= D10= Cu= Cc=

Remarks

Sandy Lean Clay (CL) (Visual)

.375" #4 #8

#10 #16 #30 #40 #50

#100 #200

0.0292 mm.

0.0191 mm.

0.0114 mm.

0.0082 mm.

0.0060 mm.

0.0030 mm.

0.0013 mm.

100.0 99.6 98.1 97.6 96.1 92.2 89.3 85.7 78.8 71.5 61.8 53.5 45.2 39.7 34.2 27.8 20.4

0.4601 0.2784 0.0265

0.0156 0.0040

Plastic - Rolls Bag Sample

10-27-09 10-28-09 Michael Hawe, S.E.T.

Brenda Hermes, E.I.

Project Manager

10-20-09

Cascade Earth Sciences Miscellaneous Lab Testing

9419000756

Material Description

Atterberg Limits (ASTM D 4318)

Classification

Coefficients

Date Received: Date Tested:

Tested By:

Checked By:

Title:

Date Sampled:Location: 2009230007 - MW#3 (2'-6') Sample Number: 1358J Depth: 2'-6'

Client:

Project:

Project No: Figure

Test Results (ASTM D 422 & ASTM D 1140)

Opening Percent Spec.* Pass?

Size Finer (Percent) (X=Fail)

P E

R C

E N

T

FI

N E

R

GRAIN SIZE - mm.

0.00010.0010.010.1110100

% +3" Coarse

% Gravel Fine Coarse Medium

% Sand Fine Silt

% Fines Clay

0.0 0.0 0.4 2.0 8.3 17.8 39.5 32.0 in in in

1½ in in

¾ in

½ in

3/ in

#4 #1

#2

#3

#4

#6

#1

#1

#2

CLIENT: Cascade Earth Sciences LAB NO: 1358K

CLIENT PROJECT NO: 2009230007 DATE SAMPLED: 10/20/2009

MATERIAL: Sandy Lean Clay (CL) (Visual) SAMPLED BY: Client

SOURCE: MW#3 (6.5'-10') TEST DEPTH: 9.5'-10'

SAMPLE PREPARATION: Sample tested in the in-situ condition. Tube cut with sample in place;

ends of tube were capped with porous materials and then tested for permeability.

METHOD OF COMPACTION: Sample tested at the in-situ density and moisture content.

TESTING METHOD: Method B: Falling Head

FIELD MOISTURE (%): 22.1 LAB MOISTURE (%): N/A

INITIAL DIAMETER (cm): 3.175 FINAL DIAMETER (cm): 3.175

INITIAL LENGTH (cm): 8.138 FINAL LENGTH (cm): 8.138

INITIAL MOISTURE CONTENT (%): 23.4 FINAL MOISTURE CONTENT (%): 26.4

INITIAL DRY BULK DENSITY (lb/ft3): 90.5

% OF COMPACTION: N/A

FINAL DRY BULK DENSITY (lb/ft3): 90.5

AVERAGE Ksat * (cm/s): 2.57E-07 AVERAGE Ksat * (ft/day): 7.27E-04

MAXIMUM GRADIENT USED: 14.75

MINIMUM GRADIENT USED: 14.14

*Corrected to 20°C ** Modified - Sample tube used in lieu of 4" compaction mold.

Measurement of Hydraulic Conductivity of Saturated Porous Materials

J:\4-LAB\2009\09419\9419000756_CES\1358K_MW#3_6.5'-10'_FallingHeadPermB.xls

1358L

& Environmental

Reno, NV

(no specification provided)*

PL= LL= PI=

USCS (D 2487)= AASHTO (M 145)=

D90= D85= D60= D50= D30= D15= D10= Cu= Cc=

Remarks

Sandy Lean Clay (CL) (Visual)

.500"

.375" #4 #8

#10 #16 #30 #40 #50

#100 #200

0.0288 mm.

0.0186 mm.

0.0111 mm.

0.0080 mm.

0.0058 mm.

0.0029 mm.

0.0012 mm.

100.0 98.9 98.4 97.5 97.2 96.1 92.7 90.3 87.7 82.4 76.5 64.4 59.9 53.7 48.3 43.9 39.5 32.3

0.4089 0.2105 0.0187 0.0088

Plastic - Rolls Bag Sample

10-27-09 10-28-09 Michael Hawe, S.E.T.

Brenda Hermes, E.I.

Project Manager

10-20-09

Cascade Earth Sciences Miscellaneous Lab Testing

9419000756

Material Description

Atterberg Limits (ASTM D 4318)

Classification

Coefficients

Date Received: Date Tested:

Tested By:

Checked By:

Title:

Date Sampled:Location: 2009230007 - MW#3 (6'-10') Sample Number: 1358L Depth: 6'-10'

Client:

Project:

Project No: Figure

Test Results (ASTM D 422 & ASTM D 1140)

Opening Percent Spec.* Pass?

Size Finer (Percent) (X=Fail)

P E

R C

E N

T

FI

N E

R

GRAIN SIZE - mm.

0.00010.0010.010.1110100

% +3" Coarse

% Gravel Fine Coarse Medium

% Sand Fine Silt

% Fines Clay

0.0 0.0 1.6 1.2 6.9 13.8 33.9 42.6 in in in

1½ in in

¾ in

½ in

3/ in

#4 #1

#2

#3

#4

#6

#1

#1

#2

CLIENT: Cascade Earth Sciences LAB NO: 1358M

CLIENT PROJECT NO: 2009230007 DATE SAMPLED: 10/20/2009

MATERIAL: Sandy Lean Clay (CL) (Visual) SAMPLED BY: Client

SOURCE: MW#4 (8'-12') TEST DEPTH: 11.5'-12.0'

SAMPLE PREPARATION: Sample tested in the in-situ condition. Tube cut with sample in place;

ends of tube were capped with porous material and then tested for permeability.

METHOD OF COMPACTION: Sample tested at the in-situ density and moisture content.

TESTING METHOD: Method B: Falling Head

FIELD MOISTURE (%): 61.7 LAB MOISTURE (%): N/A

INITIAL DIAMETER (cm): 3.175 FINAL DIAMETER (cm): 3.175

INITIAL LENGTH (cm): 7.356 FINAL LENGTH (cm): 7.356

INITIAL MOISTURE CONTENT (%): 55.6 FINAL MOISTURE CONTENT (%): 62.4

INITIAL DRY BULK DENSITY (lb/ft3): 63.0

% OF COMPACTION: N/A

FINAL DRY BULK DENSITY (lb/ft3): 63.0

AVERAGE Ksat * (cm/s): 1.68E-07 AVERAGE Ksat * (ft/day): 4.77E-04

MAXIMUM GRADIENT USED: 16.31

MINIMUM GRADIENT USED: 15.88

* Corrected to 20°C ** Modified - Sample tube used in lieu of 4" compaction mold.

Measurement of Hydraulic Conductivity of Saturated Porous Materials

J:\4-LAB\2009\09419\9419000756_CES\1358M_MW#4_8'-12'_FallingHeadPermB.xls

1358N

& Environmental

Reno, NV

(no specification provided)*

PL= LL= PI=

USCS (D 2487)= AASHTO (M 145)=

D90= D85= D60= D50= D30= D15= D10= Cu= Cc=

Remarks

Sandy Lean Clay (CL) (Visual)

.375" #4 #8

#10 #16 #30 #40 #50

#100 #200

0.0284 mm.

0.0187 mm.

0.0111 mm.

0.0080 mm.

0.0058 mm.

0.0029 mm.

0.0012 mm.

100.0 99.8 99.5 99.4 98.7 97.0 95.5 93.8 89.5 83.8 68.3 59.1 52.7 48.1 42.6 33.5 27.8

0.1608 0.0847 0.0197

0.0091 0.0019

Plastic - Rolls Bag Sample

10-27-09 10-28-09 Michael Hawe, S.E.T.

Brenda Hermes, E.I.

Project Manager

10-20-09

Cascade Earth Sciences Miscellaneous Lab Testing

9419000756

Material Description

Atterberg Limits (ASTM D 4318)

Classification

Coefficients

Date Received: Date Tested:

Tested By:

Checked By:

Title:

Date Sampled:Location: 2009230007 - MW#4 (8'-12') Sample Number: 1358N Depth: 8'-12'

Client:

Project:

Project No: Figure

Test Results (ASTM D 422 & ASTM D 1140)

Opening Percent Spec.* Pass?

Size Finer (Percent) (X=Fail)

P E

R C

E N

T

FI

N E

R

GRAIN SIZE - mm.

0.00010.0010.010.1110100

% +3" Coarse

% Gravel Fine Coarse Medium

% Sand Fine Silt

% Fines Clay

0.0 0.0 0.2 0.4 3.9 11.7 43.6 40.2 in in in

1½ in in

¾ in

½ in

3/ in

#4 #1

#2

#3

#4

#6

#1

#1

#2

CLIENT: Cascade Earth Sciences LAB NO: 1358O

CLIENT PROJECT NO: 2009230007 DATE SAMPLED: 10/20/2009

MATERIAL: Sandy Lean Clay (CL) (Visual) SAMPLED BY: Client

SOURCE: MW#4 (12'-16') TEST DEPTH: 15.5'-16.0'

SAMPLE PREPARATION: Sample tested in the in-situ condition. Tube cut with sample in place;

ends of tube were capped with porous material and then tested for permeability.

METHOD OF COMPACTION: Sample tested at the in-situ density and moisture content.

TESTING METHOD: Method B: Falling Head

FIELD MOISTURE (%): 44.0 LAB MOISTURE (%): N/A

INITIAL DIAMETER (cm): 3.175 FINAL DIAMETER (cm): 3.175

INITIAL LENGTH (cm): 9.404 FINAL LENGTH (cm): 9.404

INITIAL MOISTURE CONTENT (%): 41.2 FINAL MOISTURE CONTENT (%): 40.5

INITIAL DRY BULK DENSITY (lb/ft3): 82.4

% OF COMPACTION: N/A

FINAL DRY BULK DENSITY (lb/ft3): 82.4

AVERAGE Ksat * (cm/s): 2.05E-07 AVERAGE Ksat * (ft/day): 5.80E-04

MAXIMUM GRADIENT USED: 12.76

MINIMUM GRADIENT USED: 12.44

* Corrected to 20°C ** Modified - Sample tube used in lieu of 4" compaction mold.

Measurement of Hydraulic Conductivity of Saturated Porous Materials

J:\4-LAB\2009\09419\9419000756_CES\1358O_MW#4_12'-16'_FallingHeadPermB.xls

1358P

& Environmental

Reno, NV

(no specification provided)*

PL= LL= PI=

USCS (D 2487)= AASHTO (M 145)=

D90= D85= D60= D50= D30= D15= D10= Cu= Cc=

Remarks

Sandy Lean Clay (CL) (Visual)

.375" #4 #8

#10 #16 #30 #40 #50

#100 #200

0.0286 mm.

0.0185 mm.

0.0112 mm.

0.0081 mm.

0.0059 mm.

0.0029 mm.

0.0013 mm.

100.0 99.7 99.0 98.4 97.2 94.7 93.0 91.1 86.7 80.5 67.7 62.0 51.5 45.8 38.3 30.8 25.8

0.2504 0.1195 0.0167

0.0102 0.0026

Plastic - Rolls Bag Sample

10-27-09 10-28-09 Michael Hawe, S.E.T.

Brenda Hermes, E.I.

Project Manager

10-20-09

Cascade Earth Sciences Miscellaneous Lab Testing

9419000756

Material Description

Atterberg Limits (ASTM D 4318)

Classification

Coefficients

Date Received: Date Tested:

Tested By:

Checked By:

Title:

Date Sampled:Location: 2009230007 - MW#4 (12'-16') Sample Number: 1358P Depth: 12'-16'

Client:

Project:

Project No: Figure

Test Results (ASTM D 422 & ASTM D 1140)

Opening Percent Spec.* Pass?

Size Finer (Percent) (X=Fail)

P E

R C

E N

T

FI

N E

R

GRAIN SIZE - mm.

0.00010.0010.010.1110100

% +3" Coarse

% Gravel Fine Coarse Medium

% Sand Fine Silt

% Fines Clay

0.0 0.0 0.3 1.3 5.4 12.5 45.1 35.4 in in in

1½ in in

¾ in

½ in

3/ in

#4 #1

#2

#3

#4

#6

#1

#1

#2

CLIENT: Cascade Earth Sciences LAB NO: 1358Q

CLIENT PROJECT NO: 2009230007 DATE SAMPLED: 10/20/2009

MATERIAL: Sandy Lean Clay (CL) (Visual) SAMPLED BY: Client SOURCE: Boring #5 (4'-8') TEST DEPTH: 7.5'-8.0'

SAMPLE PREPARATION: Sample tested in the in-situ condition. Tube cut with sample in place;

ends of tube were capped with porous material and then tested for permeability.

METHOD OF COMPACTION: Sample tested at the in-situ density and moisture content.

TESTING METHOD: Method B: Falling Head

FIELD MOISTURE (%): 27.9 LAB MOISTURE (%): N/A

INITIAL DIAMETER (cm): 3.175 FINAL DIAMETER (cm): 3.175

INITIAL LENGTH (cm): 9.081 FINAL LENGTH (cm): 9.081

INITIAL MOISTURE CONTENT (%): 33.6 FINAL MOISTURE CONTENT (%): 39.3

INITIAL DRY BULK DENSITY (lb/ft3): 78.2

% OF COMPACTION: N/A

FINAL DRY BULK DENSITY (lb/ft3): 78.2

AVERAGE Ksat * (cm/s): 8.74E-07 AVERAGE Ksat * (ft/day): 2.48E-03

MAXIMUM GRADIENT USED: 12.99

MINIMUM GRADIENT USED: 10.62

* Corrected to 20°C ** Modified - Sample tube used in lieu of 4" compaction mold.

Measurement of Hydraulic Conductivity of Saturated Porous Materials

J:\4-LAB\2009\09419\9419000756_CES\1358Q_Boring#5_4'-8'_FallingHeadPermB.xls

1358Q

& Environmental

Reno, NV

(no specification provided)*

PL= LL= PI=

USCS (D 2487)= AASHTO (M 145)=

D90= D85= D60= D50= D30= D15= D10= Cu= Cc=

Remarks

Sandy Lean Clay (CL) (Visual)

.750"

.500"

.375" #4 #8

#10 #16 #30 #40 #50

#100 #200

0.0300 mm.

0.0192 mm.

0.0115 mm.

0.0083 mm.

0.0060 mm.

0.0030 mm.

0.0013 mm.

100.0 97.3 94.9 89.1 84.5 83.3 77.6 71.1 67.9 65.0 59.8 53.8 43.3 40.3 33.6 28.4 24.6 19.6 16.0

5.3510 2.5561 0.1539

0.0549 0.0093

Slightly Plastic - Rolls with Difficulty In-situ Tube Sample

10-27-09 10-28-09 Michael Hawe, S.E.T.

Brenda Hermes, E.I.

Project Manager

10-20-09

Cascade Earth Sciences Miscellaneous Lab Testing

9419000756

Material Description

Atterberg Limits (ASTM D 4318)

Classification

Coefficients

Date Received: Date Tested:

Tested By:

Checked By:

Title:

Date Sampled:Location: 2009230007 - Boring #5 (4'-8') Sample Number: 1358Q Depth: 7.5'-8.0'

Client:

Project:

Project No: Figure

Test Results (ASTM D 422 & ASTM D 1140)

Opening Percent Spec.* Pass?

Size Finer (Percent) (X=Fail)

P E

R C

E N

T

FI

N E

R

GRAIN SIZE - mm.

0.00010.0010.010.1110100

% +3" Coarse

% Gravel Fine Coarse Medium

% Sand Fine Silt

% Fines Clay

0.0 0.0 10.9 5.8 15.4 14.1 30.7 23.1 in in in

1½ in in

¾ in

½ in

3/ in

#4 #1

#2

#3

#4

#6

#1

#1

#2

PROJECT: Miscellaneous Laboratory Testing JOB NO: 9419000756 CLIENT: Cascade Earth Sciences LAB NO: 1358R

CLIENT PROJECT NO: 2009230007 DATE SAMPLED: 10/20/2009

MATERIAL: Sandy Lean Clay (CL) (Visual) SAMPLED BY: Client SOURCE: Boring #5 (16'-20') TEST DEPTH: 19.5'-20.0'

SAMPLE PREPARATION: Sample tested in the in-situ condition. Tube cut with sample in place;

ends of tube were capped with porous material and then tested for permeability.

METHOD OF COMPACTION: Sample tested at the in-situ density and moisture content.

TESTING METHOD: Method B: Falling Head

FIELD MOISTURE (%): 45.7 LAB MOISTURE (%): N/A

INITIAL DIAMETER (cm): 3.175 FINAL DIAMETER (cm): 3.175

INITIAL LENGTH (cm): 7.525 FINAL LENGTH (cm): 7.525

INITIAL MOISTURE CONTENT (%): 46.8 FINAL MOISTURE CONTENT (%): 48.3

INITIAL DRY BULK DENSITY (lb/ft3): 74.8

% OF COMPACTION: N/A

FINAL DRY BULK DENSITY (lb/ft3): 74.8

AVERAGE Ksat * (cm/s): 2.13E-07 AVERAGE Ksat * (ft/day): 6.02E-04

MAXIMUM GRADIENT USED: 15.68

MINIMUM GRADIENT USED: 14.75

* Corrected to 20°C ** Modified - Sample tube used in lieu of 4" compaction tube.

Measurement of Hydraulic Conductivity of Saturated Porous Materials

J:\4-LAB\2009\09419\9419000756_CES\1358R_Boring#5_16'-20'_FallingHeadPermB.xls

1358R

& Environmental

Reno, NV

(no specification provided)*

PL= LL= PI=

USCS (D 2487)= AASHTO (M 145)=

D90= D85= D60= D50= D30= D15= D10= Cu= Cc=

Remarks

Sandy Lean Clay (CL) (Visual)

.500"

.375" #4 #8

#10 #16 #30 #40 #50

#100 #200

0.0310 mm.

0.0202 mm.

0.0120 mm.

0.0086 mm.

0.0062 mm.

0.0031 mm.

0.0013 mm.

100.0 98.5 96.6 95.1 94.8 93.4 90.5 88.2 85.7 80.1 72.4 55.1 45.2 37.5 30.8 25.3 15.7

9.2

0.5565 0.2738 0.0381

0.0252 0.0083 0.0029

0.0015 25.45 1.19

Slightly Plastic - Rolls with Difficulty In-situ Tube Sample

10-27-09 10-28-09 Michael Hawe, S.E.T.

Brenda Hermes, E.I.

Project Manager

10-20-09

Cascade Earth Sciences Miscellaneous Lab Testing

9419000756

Material Description

Atterberg Limits (ASTM D 4318)

Classification

Coefficients

Date Received: Date Tested:

Tested By:

Checked By:

Title:

Date Sampled:Location: 2009230007 - Boring #5 (16'-20') Sample Number: 1358R Depth: 19.5'-20.0'

Client:

Project:

Project No: Figure

Test Results (ASTM D 422 & ASTM D 1140)

Opening Percent Spec.* Pass?

Size Finer (Percent) (X=Fail)

P E

R C

E N

T

FI

N E

R

GRAIN SIZE - mm.

0.00010.0010.010.1110100

% +3" Coarse

% Gravel Fine Coarse Medium

% Sand Fine Silt

% Fines Clay

0.0 0.0 3.4 1.8 6.6 15.8 50.2 22.2 in in in

1½ in in

¾ in

½ in

3/ in

#4 #1

#2

#3

#4

#6

#1

#1

#2

CLIENT: Cascade Earth Sciences LAB NO: 1358S

CLIENT PROJECT NO: 2009230007 DATE SAMPLED: 10/20/2009

MATERIAL: Clayey Sand (SC) (Visual) SAMPLED BY: Client SOURCE: Boring #6 (4'-8') TEST DEPTH: 7.5'-8.0'

SAMPLE…