07262019_Bluff A Borrow Memo revised.pdf

MEMO

Tetra Tech 851 Bridger Drive, Bozeman MT 59715

Tel 406.582.8780 Fax 406.582.8790 tetratech.com

Introduction

Historical mining activities in the Riley Pass region have resulted in long-term disturbance of the area’s soil and plant resources. An assessment of soil borrow resources for potential use as capping material and growth media for reclamation of Bluff A was conducted in May 2019. A map showing potential borrow area boundaries and test pit locations is provided in Attachment 1 while summary data tables are provided in Attachment 2. Field notes and a photo log are provided in Attachments 3 and 4, respectively. Analytical laboratory reports are included in

Attachment 5.

Methods

The goal of the borrow soil assessment was to characterize soil physical and chemical parameters within an area approximately 0.2 miles southwest of Bluff A that is under consideration as a borrow source (Borrow Source 1)

(Attachment 1). This area was evaluated in accordance with the approved Plan of Study which included excavation, observation, and sampling of test pits (Tetra Tech 2019). Data collected during this effort were compared to suitability criteria established for the Riley Pass project to determine the salvageable depth of soil at each test pit and to calculate a total volume of soil available for reclamation use.

Four originally proposed soil pit locations were excluded from the final borrow area delineation as they were either deemed unsuitable during initial field screening (BH-1, -10, -11, and -12) or were located in an area which a

USFS representative stated would not be disturbed as part of salvage operations (BH-3).

After completing field activities in Borrow Source 1, a preliminary screening of a second area located adjacent to

Bluff A (Borrow Source 2) was completed (Attachment 1). This screening consisted of hand-excavation of three soil test pits to depths of approximately 24 inches, recording abbreviated soil descriptions, and collecting samples from the A- (topsoil) and B- (subsoil) horizons.

Borrow Source 1 Results

The Harding County Soil Survey indicates that soils in Borrow Source 1 consist of approximately 16 inches of fine sandy loam or silty clay loam above weathered or non-weathered sandstone and siltstone bedrock (NRCS 2019).

During field activities it was determined that the borrow source is in a landslide area beneath a bluff rim. A-horizon and B-horizon (where present) soil depths were deeper than those described in the soil survey, averaging

23 inches. Yellowish-tan C-horizon material underlying the A and B horizons tended to be weathered and friable and occurred to depths ranging from 30 to 120 inches below ground surface. This material was thickest in the southwestern portion of the borrow area and tapered toward the northeast. Grey and red weathered siltstone bedrock underlying these soils appeared to be the glide-plane for landslide movement.

Soils primarily consisted of loam and silt loam textures although clay loam and sandy loam were also encountered. Rock fragments were largely absent from the soil profile and, when present, consisted of gravels and cobbles composing less than 10 percent of the soil volume.

To: Mr. Peter Werner, PE – Mining Engineer, Custer Gallatin National Forest

From: Shane Matolyak – Environmental Scientist/Project Manager, Tetra Tech

Cc: Michael Hatten, PE – Project Manager, Tetra Tech

Date: July 26, 2019

Subject: Riley Pass Bluff A Soil Borrow Source Assessment (Contract 1203551D001)

TETRA TECH

Physical and chemical data for discrete soil horizons and depths are compared to salvage suitability criteria in

Attachment 2. Nearly all samples were considered suitable for salvage based on meeting suitability criteria by a wide margin. Exceedances of chemical suitability criteria were limited to four samples which did not meet criteria for pH and/or sodium adsorption ratio. Salvage of soil not meeting chemical suitability criteria may be possible as undesirable characteristics would be ameliorated by dilution with suitable soil during salvage and placement activities.

Because chemical suitability criteria are generally non-limiting, salvage depths are primarily limited by the presence of competent bedrock or the depth of weathered siltstone suspected of being the glide-plane for landslide activity. Glide-plane material was observed to act as a conduit for groundwater infiltrating into some test pits during excavation (perennial wetness is a suitability criterion). This material also exceeded suitability criteria for pH and sodium adsorption ratio in certain samples.

Based on comparison of soil physical and chemical data to salvage suitability criteria, the proposed depth of salvageable material at each test pit location is reported in Table 1. These salvage depths were modeled using

AutoCAD Civil 3D to determine the overall available borrow volume.

Table 1. Proposed Soil Salvage Depths for Borrow Area 1

Test Pit

Salvage

Depth

(inches)

Notes

BH-1 0 Bedrock encountered at 10-inch depth. Numerous large rocks on surface.

BH-2 0

USFS stated that soil would not be disturbed from the steep vegetated hillside to the north of this location. This “0” point represents the bottom of a small gully/ditch separating base of hillside from Borrow Area 1.

BH-3 0 USFS stated that soil would not be disturbed from this steep vegetated hillside.

BH-4 120 Contact with glide-plane material associated with questionable salvage qualities.

BH-5 33 Glide-plane material with unsuitable pH and SAR.

BH-6 140 Water seepage at this depth.

BH-7 55

pH equals salvage cut-off value at 30” (probably can be diluted with other soil), water seepage at 55”.

BH-8 60

Pit excavated to this depth which is approximately equal to elevation of nearby gully.

Deeper salvage may be possible.

BH-9 131 Excavator refusal due to bedrock at this depth.

BH-10, 11, 12 0 High sodium adsorption ratio and rock content in previously disturbed area.

Using AutoCAD Civil 3D, an excavation model surface was developed based on the borrow source investigation data. The excavation model was then compared to the existing ground (LiDAR based) model to calculate the total volume of salvageable material available. Using this method, the total salvageable material available was calculated to be 23,750 cubic yards (total including topsoil).

The thickness of A- and B-horizon material was less variable across the 1.97-acre borrow area compared to the maximum salvageable depth and averaged 23 inches. This equates to 3.8 acre-feet or 6,091 cubic yards of topsoil material available for use as growth media.

Agronomic fertilizer recommendations are provided in the analytical laboratory report (Attachment 5). Assuming only A- and B-horizon material would be placed as growth media within the plant root zone, the average fertilizer recommendations are as follows;

• Total nitrogen = 27 pounds/acre

• Phosphorous (P2O5) = 41 pounds/acre

• Potassium (K2O) = 8 pounds/acre

• Elemental Sulphur = 9 pounds/acre

• Compost = 1 ton/acre

• Gypsum = 0.4 pounds/acre

These recommendations would require adjustment (i.e. additional potassium, compost, and gypsum) if less fertile

C-horizon material was included as growth media within the plant rooting zone.

Borrow Source 2 Results

Comparison of analytical data for Borrow Source 2 to salvage criteria (Attachment 2) show that soil in the western portion of the area, near tests pits BH-13 and BH-14, is suitable for salvage to a depth of at least 24 inches. Soil pH increased with depth and may exceed the suitability criterion below the 24-inch depth so additional evaluation would be necessary to determine the maximum salvageable depth in this area.

Located in the eastern portion of Borrow Source 2, test pit BH-15 contained a lens of dark colored material in the

12- to 15-inch depth increment. This material had a radium-226 concentration of 54.9 pCi/g which exceeded the suitability criterion of 30 pCi/g. Soil below this material was also unsalvageable due to its loamy sand texture. It’s possible that soils in this location were impacted by mine wastes that eroded or were pushed from Bluff A during mine operations. Additional evaluation of this area would be necessary to determine whether soils are suitable for salvage.

References

Natural Resourced Conservation Service (NRCS). 2019. Web Soil Survey of Harding County, South Dakota.

(https://websoilsurvey.nrcs.usda.gov/app/HomePage.htm) Accessed May 2, 2019.

Tetra Tech. 2019. Riley Pass Removal Action Borrow Soil Characterization, Bluff A. Plan of Study. April.

ATTACHMENT 1

FIGURE

Potential Borrow Source 2 (1.55 acres)

Potential Borrow Source 1 (1.97 acres)

BH-9

BH-8

BH-7

BH-6

BH-5

BH-4

BH-3

BH-2

BH-1

BH-13

BH-17BH-16

BH-15BH-14

BH-12

BH-11

BH-10

C:\CData\RileyPass\BluffA\Arcmap\BluffAFig1BorrowSrc.mxd June 2019

J ULY 2 0 1 9

F i g u r e 1

B L U F F A P O T E N T I A L B O R R O W S O U R C E S

H A R D I N G C O U N T Y, S D Project no.: Date:

Location: Figure:

Title:

NAD_1983_STATEPLANE

SOUTH_DAKOTA

NORTH_FIPS_4001_FEET

Prepared by:Prepared for:

1 1 7 - 8 3 4 3 0 0 6

825 W. Custer Ave.

Helena, MT 59602

(406) 443-5210

Background ESRI World Imagery0 100 200 300 40050 Feet

1:3,000

Potential Borrow Source Soil Borehole Location

ATTACHMENT 2

DATA SUMMARY TABLES

Table A1. Comparison of Borrow Area 1 Soil Properties to Soil Suitability Criteria

Sample

Identification

Clay

Percentage and

Texture1

Rock

Fragments

Depth to

Water

Table

(Inches) pH

Arsenic Cadmium Copper Lead Zinc Sodium

Adsorption

Ratio

Specific

Conductivity

(dS/m)

Ra-

(pCi/g)mg/kg

Suitability Criteria (unsuitable if these criteria are exceeded)

> 45% clay

(S or LS) > 45

Perennial

Wetness

< 6.0 or >

8.5

> 142 > 4 > 100 > 100 > 250 > 12 > 6 > 30

BH-1, 1-10 3 (SiL) < 5 6.4 12 < 1 10 5 38 0.32 0.4 0.6

BH-1, 10-35 -- 100 -- -- -- -- -- -- -- -- -- --

BH-2, 1-17 9 (SiL) < 1 -- 5.9 15 < 1 7 8 39 0.54 0.4 0.7

BH-2, 17-27 15 (L) < 5 -- -- -- -- -- -- -- -- -- --

BH-2, 27-96 6 (SL) < 5 -- 7.7 16 < 1 6 13 27 4.43 0.3 0.5

BH-2, 3-24

South

33 (CL) < 10 -- 7.5 5 < 1 7 11 37 2.05 0.5 0.6

BH-4, 1-20 8 (SiL) < 1 -- 6.2 14 < 1 9 8 34 0.87 0.6 0.7

BH-4, 20-32 11 (L) < 5 -- 6.7 23 < 1 8 10 37 1.35 0.3 0.6

BH-4, 32-70 14 (L) < 5 -- 7.8 20 < 1 8 12 33 2.01 0.5 0.6

BH-4, 100-120 13 (L) < 5 -- 8.2 23 < 1 10 8 32 2.86 0.4 0.6

BH-4, 150-160 20 (L) < 5 -- 8.0 3 < 1 4 6 32 2.77 0.3 0.5

BH-5, 1-10 28 (CL) < 1 -- 6.4 14 < 1 9 8 36 0.94 0.4 0.9

BH-5, 10-33 13 (L) < 5 -- 8.1 27 < 1 9 8 36 5.26 0.7 0.7

BH-5, 33-60 8 (SiL) < 1 -- 9.2 12 < 1 10 9 38 24.4 0.7 1.7

BH-6, 2-18 7 (SiL) < 1 -- 6.7 17 < 1 8 8 31 0.95 0.6 0.5

BH-6, 18-35 6 (SL) < 1 -- 7.1 7 < 1 5 5 38 1.01 0.3 0.4

BH-6, 35-60 10 (SL) < 1 -- 7.2 9 < 1 8 6 50 1.32 0.3 0.6

BH-6, 108-118 7 (SL) < 1 -- 7.9 13 < 1 7 9 36 2.25 0.3 0.6

BH-6, 140-150 9 (SL) < 1 140 7.8 16 < 1 7 6 38 2.10 0.3 0.6

BH-7, 1-19 10 (SiL) < 1 -- 6.6 15 < 1 8 6 30 0.62 0.4 0.8

BH-7, 19-30 9 (SL) < 5 -- 7.9 11 < 1 5 6 35 2.39 0.5 0.5

BH-7, 30-60 13 (L) < 5 55 8.5 16 < 1 7 8 32 5.69 0.6 0.6

BH-8, 1-16 17 (SiL) < 1 -- 6.3 33 < 1 12 8 37 1.06 0.4 0.6

BH-8, 16-24 20 (L) < 1 -- 7.2 53 < 1 15 11 45 1.85 0.8 0.5

BH-8, 24-60 19 (SiL) < 10 -- 7.8 46 < 1 15 10 45 2.35 0.6 0.6

BH-9, 1-18 19 (SiL) < 1 -- 6.5 50 < 1 15 12 47 0.67 0.4 0.6

BH-9, 18-36 16 (L) < 1 -- 7.4 44 < 1 14 10 43 1.44 0.6 0.7

BH-9, 36-44 18 (L) < 1 -- -- -- -- -- -- -- -- -- --

BH-9, 44-60 18 (L) < 5 -- 7.9 45 < 1 14 13 45 1.57 0.6 0.6

BH-9, 100-120 17 (L) < 10 -- 7.9 39 < 1 14 11 48 1.65 0.5 0.6

BH-9, 120-131 17 (L) > 45 -- 8.0 33 < 1 13 12 41 2.93 0.6 0.5

BH-10, 0-36 11 (SL) 20 36 7.8 9 < 1 3 11 9 21.9 1.2 0.3

1 C = Clay, CL = Clay Loam, L= Loam, LS = Loamy Sand, S = Sand, SL = Sandy Loam, SiL = Silty Loam, -- = Parameter not analyzed or water table not encountered

Values in bold font indicate unsuitable soil conditions.

Table A2. Comparison of Borrow Area 2 Soil Properties to Soil Suitability Criteria

Sample

Identification

Clay

Percentage and

Texture1

Rock

Fragments

Depth to

Water

Table

(Inches) pH

Arsenic Cadmium Copper Lead Zinc Sodium

Adsorption

Ratio

Specific

Conductivity

(dS/m)

Ra-

(pCi/g)mg/kg

Suitability Criteria (unsuitable if these criteria are exceeded)

> 45% clay

(S or LS) > 45

Perennial

Wetness

< 6.0 or >

8.5

> 142 > 4 > 100 > 100 > 250 > 12 > 6 > 30

BH-13, 0.5-9 1 (SL) < 1 -- 7.6 14 < 1 5 6 33 0.33 0.5 0.9

BH-13, 9-22 7 (SL) < 1 -- 8.3 25 < 1 7 7 34 0.59 0.4 1.7

BH-13, 22+ 11 (SL) < 10 -- 8.4 31 < 1 7 8 36 0.95 0.4 1.7

BH-14, 0.5-6 9 (SL) < 1 -- 7.7 32 < 1 8 7 32 0.43 0.4 0.6

BH-14, 6-24 4 (SL) < 1 -- 8.1 23 < 1 6 7 33 0.69 0.3 1.9

BH-15, 0-12 14 (L) < 1 -- 7.7 29 < 1 10 10 36 1.14 0.5 3.2

BH-15, 12-15 8 (SL) < 1 -- 7.9 31 < 1 5 7 37 2.07 0.4 54.9

BH-15, 15-22 < 1 (LS) < 1 -- 8.1 30 < 1 5 7 34 1.66 0.4 4.8

1 C = Clay, CL = Clay Loam, L= Loam, LS = Loamy Sand, S = Sand, SL = Sandy Loam, SiL = Silty Loam, -- = Parameter not analyzed or water table not encountered

Values in bold font indicate unsuitable soil conditions.

ATTACHMENT 3

FIELD NOTES

ATTACHMENT 4

PHOTO LOG

PHOTOGRAPH LOG

RILEY PASS BLUFF A BORROW SOURCE AREAS

Contract # 1203551D001

Photo 1. BH-1 soil profile. Photo 2. BH-2 soil profile.

Photo 3. BH-4 soil profile. Photo 4. BH-4 being excavated to depth.

Photo 5. BH-5 soil profile (pinkish grey clay layer visible at base of profile).

Photo 6. BH-6 soil profile.

Contract # 1203551D001

Photo 7. BH-7 soil profile. Photo 8. BH-8 soil profile.

Photo 9. BH-9 soil profile. Photo 10. BH-10 soil profile.

Photo 11. BH-12 soil profile. Photo 12. View towards east across potential borrow area 2.

Contract # 1203551D001

Photo 13. BH-13 soil profile. Photo 14. BH-14 soil profile.

Photo 15. BH-15 soil profile. Dark brown/black soil horizon indicated by green markers.

ATTACHMENT 5

ANALYTICAL LABORATORY REPORTS

ANALYTICAL SUMMARY REPORT

Lab ID Client Sample ID Collect Date Receive Date Matrix Test

B19050979-001 BH-8 1-16 05/07/19 0:00 05/09/19 Soil Metals by ICP/ICPMS, Total or Soluble Cation Exchange Capacity Metals, NH4OAC Extractable Metals, Saturated Paste Conductivity, Saturated Paste Extract Exchangeable Sodium Percentage Fertilizer Recommendation Anions, Saturated Paste Extract Lime as CaCO3, % Moisture Nitrate as N, KCL Extract Nitrate as N, Lbs/Acre Organic Carbon/Matter Walkley- Black pH, Saturated Paste Phosphorus-Olsen Total Metals Digestion by SW3050B NH4AC Soil Extraction for CEC

USDA19

Ammonium Acetate Extraction

ASA13-3

Digestion For RadioChemistry

ELI_50-169

Saturated Paste Extraction ASA Particle Size Analysis / Texture Radium 226 Sodium Adsorption Ratio Saturation Percentage

B19050979-002 BH-8 16-24 05/07/19 0:00 05/09/19 Soil Same As Above

B19050979-003 BH-8 24-60 05/07/19 0:00 05/09/19 Soil Same As Above

B19050979-004 BH-9 1-18 05/07/19 0:00 05/09/19 Soil Same As Above

B19050979-005 BH-9 18-36 05/07/19 0:00 05/09/19 Soil Same As Above

B19050979-007 BH-9 44-60 05/07/19 0:00 05/09/19 Soil Same As Above

B19050979-008 BH-9 100-120 05/08/19 0:00 05/09/19 Soil Same As Above

B19050979-009 BH-9 120-131 05/08/19 0:00 05/09/19 Soil Same As Above

B19050979-010 BH-10 0-36 05/07/19 0:00 05/09/19 Soil Same As Above

B19050979-011 BH-5 10-33 05/08/19 0:00 05/09/19 Soil Same As Above

B19050979-012 BH-5 33-60 05/08/19 0:00 05/09/19 Soil Same As Above

B19050979-013 BH-6 2-18 05/07/19 0:00 05/09/19 Soil Same As Above

Tetra Tech

Project Name: Riley Pass Greenhouse Study

Work Order: B19050979

851 Bridger Dr Ste 6

Bozeman, MT 59715

June 13, 2019

B4869Quote ID:

Energy Laboratories Inc Billings MT received the following 29 samples for Tetra Tech on 5/9/2019 for analysis.

ANALYTICAL SUMMARY REPORT

The analyses presented in this report were performed by Energy Laboratories, Inc., 1120 S 27th St., Billings, MT 59101, unless otherwise noted. Any exceptions or problems with the analyses are noted in the Laboratory Analytical Report, the QA/QC Summary Report, or the Case Narrative. Any issues encountered during sample receipt are documented in the Work Order Receipt Checklist.

The results as reported relate only to the item(s) submitted for testing. This report shall be used or copied only in its entirety. Energy Laboratories, Inc. is not responsible for the consequences arising from the use of a partial report.

If you have any questions regarding these test results, please contact your Project Manager.

Report Approved By:

B19050979-014 BH-6 18-35 05/07/19 0:00 05/09/19 Soil Same As Above

B19050979-015 BH-6 35-60 05/07/19 0:00 05/09/19 Soil Same As Above

B19050979-016 BH-6 108-118 05/08/19 0:00 05/09/19 Soil Same As Above

B19050979-017 BH-6 140-150 05/08/19 0:00 05/09/19 Soil Same As Above

B19050979-018 BH-7 1-19 05/07/19 0:00 05/09/19 Soil Same As Above

B19050979-019 BH-7 19-30 05/07/19 0:00 05/09/19 Soil Same As Above

B19050979-020 BH-7 30-60 05/07/19 0:00 05/09/19 Soil Same As Above

B19050979-021 BH-1 1-10 05/08/19 0:00 05/09/19 Soil Same As Above

B19050979-022 BH-2 1-17 05/08/19 0:00 05/09/19 Soil Same As Above

B19050979-023 BH-2 27-96 05/08/19 0:00 05/09/19 Soil Same As Above

B19050979-024 BH-2 3-24 South 05/08/19 0:00 05/09/19 Soil Same As Above

B19050979-025 BH-4 1-20 05/07/19 0:00 05/09/19 Soil Same As Above

B19050979-026 BH-4 20-32 05/07/19 0:00 05/09/19 Soil Same As Above

B19050979-027 BH-4 32-70 05/07/19 0:00 05/09/19 Soil Same As Above

B19050979-028 BH-4 100-120 05/08/19 0:00 05/09/19 Soil Same As Above

B19050979-029 BH-4 150-160 05/08/19 0:00 05/09/19 Soil Same As Above

B19050979-030 BH-5 1-10 05/08/19 0:00 05/09/19 Soil Same As Above

Project: Riley Pass Greenhouse Study

CLIENT: Tetra Tech

Work Order: B19050979 CASE NARRATIVE

06/13/19Report Date:

Tests associated with analyst identified as ELI-CA were subcontracted to Energy Laboratories, PO Box 247, Casper, WY, EPA Number WY00002.

LABORATORY ANALYTICAL REPORT

Client: Tetra Tech

Project: Riley Pass Greenhouse Study

Lab ID: B19050979-001

Client Sample ID: BH-8 1-16

Collection Date: 05/07/19

Matrix: Soil

Report Date: 07/01/19

DateReceived: 05/09/19

Prepared by Billings, MT Branch

Analyses Result Units Analysis Date / ByRL Method

MCL/

QCLQualifiers

PHYSICAL CHARACTERISTICS

05/14/19 10:32 / jlw0.2wt%21.1Moisture D2974

CHEMICAL CHARACTERISTICS

D 05/22/19 19:34 / rlh0.1meq/100g28.7Cation Exchange Capacity SW6010B

PHYSICAL CHARACTERISTICS

05/23/19 11:23 / srm1%28Sand ASA15-5

05/23/19 11:23 / srm1%55Silt ASA15-5

05/23/19 11:23 / srm1%17Clay ASA15-5

05/23/19 11:23 / srm1SiLTexture ASA15-5

- C = Clay, S = Sand(y), Si = Silt(y), L = Loam(y)

SATURATED PASTE EXTRACT

05/22/19 14:14 / srm0.1s.u.6.3pH, sat. paste ASA10-3

05/22/19 14:14 / srm0.1mmhos/cm0.4Conductivity, sat. paste ASA10-3

05/22/19 14:14 / srm0.1%47.5Saturation USDA27a

05/22/19 15:44 / rlh0.05meq/L2.38Calcium, sat. paste SW6010B

05/22/19 15:44 / rlh0.08meq/L1.77Magnesium, sat. paste SW6010B

05/22/19 15:44 / rlh0.03meq/L0.11Potassium, sat. paste SW6010B

05/22/19 15:44 / rlh0.04meq/L1.53Sodium, sat. paste SW6010B

05/23/19 09:34 / srm0.01unitless1.06Sodium Adsorption Ratio (SAR) Calculation

05/23/19 23:06 / mrc1mg/L32Sulfate E300.0

CHEMICAL CHARACTERISTICS

05/23/19 11:09 / srm0.2%5.1Organic Matter ASA29-3

05/22/19 16:22 / srm0.1%0.9Lime as CaCO3 USDA23c

05/23/19 11:18 / srm0.1%1.8Exchangeable Sodium Percentage USDA20a

05/22/19 11:15 / srm1mg/kg2Phosphorus, Olsen ASA24-5 05/20/19 15:23 / srm1mg/kg1Nitrate as N, KCL Extract ASA33-8

05/22/19 12:41 / srm1lbs/acre7Nitrate as N, KCL Extract Calculation

METALS, AMMONIUM ACETATE EXTRACTABLE

D 05/20/19 22:04 / rlh1mg/kg231Potassium, Available SW6010B

D 05/20/19 22:04 / rlh0.006meq/100g0.600Sodium, extractable SW6010B

METALS, TOTAL - EPA SW846

05/24/19 15:42 / car1mg/kg33Arsenic SW6020

05/24/19 15:42 / car1mg/kgNDCadmium SW6020

05/28/19 17:35 / ped1mg/kg12Copper SW6020

05/24/19 15:42 / car1mg/kg8Lead SW6020

05/28/19 17:35 / ped1mg/kg37Zinc SW6020

RADIONUCLIDES

06/10/19 12:01 / eli-capCi/g-dry0.6Radium 226 E903.0

06/10/19 12:01 / eli-capCi/g-dry0.1Radium 226 precision (±) E903.0

06/10/19 12:01 / eli-capCi/g-dry0.04Radium 226 MDC E903.0

Report Definitions:

RL - Analyte reporting limit. MCL - Maximum contaminant level.

QCL - Quality control limit. ND - Not detected at the reporting limit.

MDC - Minimum detectable concentration D - RL increased due to sample matrix.

Project: Riley Pass Greenhouse Study

Lab ID: B19050979-002

Client Sample ID: BH-8 16-24

Collection Date: 05/07/19

Matrix: Soil

Report Date: 07/01/19

DateReceived: 05/09/19

Prepared by Billings, MT Branch

Analyses Result Units Analysis Date / ByRL Method

MCL/

QCLQualifiers

PHYSICAL CHARACTERISTICS

05/14/19 10:32 / jlw0.2wt%10.2Moisture D2974

CHEMICAL CHARACTERISTICS

D 05/22/19 19:42 / rlh0.1meq/100g21.9Cation Exchange Capacity SW6010B

PHYSICAL CHARACTERISTICS

05/23/19 11:23 / srm1%40Sand ASA15-5

05/23/19 11:23 / srm1%40Silt ASA15-5

05/23/19 11:23 / srm1%20Clay ASA15-5

05/23/19 11:23 / srm1LTexture ASA15-5

- C = Clay, S = Sand(y), Si = Silt(y), L = Loam(y)

SATURATED PASTE EXTRACT

05/22/19 14:14 / srm0.1s.u.7.2pH, sat. paste ASA10-3

05/22/19 14:14 / srm0.1mmhos/cm0.8Conductivity, sat. paste ASA10-3

05/22/19 14:14 / srm0.1%36.2Saturation USDA27a

05/22/19 15:52 / rlh0.05meq/L3.26Calcium, sat. paste SW6010B

05/22/19 15:52 / rlh0.08meq/L2.83Magnesium, sat. paste SW6010B

05/22/19 15:52 / rlh0.03meq/L0.06Potassium, sat. paste SW6010B

05/22/19 15:52 / rlh0.04meq/L3.23Sodium, sat. paste SW6010B

05/23/19 09:34 / srm0.01unitless1.85Sodium Adsorption Ratio (SAR) Calculation

05/24/19 00:34 / mrc1mg/L45Sulfate E300.0

CHEMICAL CHARACTERISTICS

05/23/19 11:09 / srm0.2%1.9Organic Matter ASA29-3

05/22/19 16:22 / srm0.1%3.2Lime as CaCO3 USDA23c

05/23/19 11:18 / srm0.1%10.9Exchangeable Sodium Percentage USDA20a

05/22/19 11:17 / srm1mg/kg2Phosphorus, Olsen ASA24-5 05/20/19 15:23 / srm1mg/kgNDNitrate as N, KCL Extract ASA33-8

05/22/19 12:41 / srm1lbs/acreNDNitrate as N, KCL Extract Calculation

METALS, AMMONIUM ACETATE EXTRACTABLE

D 05/20/19 22:12 / rlh1mg/kg130Potassium, Available SW6010B

D 05/20/19 22:12 / rlh0.006meq/100g2.50Sodium, extractable SW6010B

METALS, TOTAL - EPA SW846

05/24/19 16:10 / car1mg/kg53Arsenic SW6020

05/24/19 16:10 / car1mg/kgNDCadmium SW6020

05/28/19 18:03 / ped1mg/kg15Copper SW6020

05/24/19 16:10 / car1mg/kg11Lead SW6020

05/28/19 18:03 / ped1mg/kg45Zinc SW6020

RADIONUCLIDES

06/10/19 12:01 / eli-capCi/g-dry0.5Radium 226 E903.0

06/10/19 12:01 / eli-capCi/g-dry0.1Radium 226 precision (±) E903.0

06/10/19 12:01 / eli-capCi/g-dry0.04Radium 226 MDC E903.0

Report Definitions:

RL - Analyte reporting limit. MCL - Maximum contaminant level.

QCL - Quality control limit. ND - Not detected at the reporting limit.

Project: Riley Pass Greenhouse Study

Lab ID: B19050979-003

Client Sample ID: BH-8 24-60

Collection Date: 05/07/19

Matrix: Soil

Report Date: 07/01/19

DateReceived: 05/09/19

Prepared by Billings, MT Branch

Analyses Result Units Analysis Date / ByRL Method

MCL/

QCLQualifiers

PHYSICAL CHARACTERISTICS

05/14/19 10:32 / jlw0.2wt%8.9Moisture D2974

CHEMICAL CHARACTERISTICS

D 05/22/19 20:28 / rlh0.1meq/100g21.1Cation Exchange Capacity SW6010B

PHYSICAL CHARACTERISTICS

05/23/19 11:23 / srm1%28Sand ASA15-5

05/23/19 11:23 / srm1%53Silt ASA15-5

05/23/19 11:23 / srm1%19Clay ASA15-5

05/23/19 11:23 / srm1SiLTexture ASA15-5

- C = Clay, S = Sand(y), Si = Silt(y), L = Loam(y)

SATURATED PASTE EXTRACT

05/22/19 14:14 / srm0.1s.u.7.8pH, sat. paste ASA10-3

05/22/19 14:14 / srm0.1mmhos/cm0.6Conductivity, sat. paste ASA10-3

05/22/19 14:14 / srm0.1%35.9Saturation USDA27a

05/22/19 16:00 / rlh0.05meq/L1.53Calcium, sat. paste SW6010B

05/22/19 16:00 / rlh0.08meq/L2.46Magnesium, sat. paste SW6010B

05/22/19 16:00 / rlh0.03meq/L0.03Potassium, sat. paste SW6010B

05/22/19 16:00 / rlh0.04meq/L3.32Sodium, sat. paste SW6010B

05/23/19 09:34 / srm0.01unitless2.35Sodium Adsorption Ratio (SAR) Calculation

05/24/19 00:51 / mrc1mg/L29Sulfate E300.0

CHEMICAL CHARACTERISTICS

05/23/19 11:09 / srm0.2%1.2Organic Matter ASA29-3

05/22/19 16:22 / srm0.1%9.1Lime as CaCO3 USDA23c

05/23/19 11:18 / srm0.1%10.1Exchangeable Sodium Percentage USDA20a

05/22/19 11:22 / srm1mg/kg1Phosphorus, Olsen ASA24-5 05/20/19 15:24 / srm1mg/kgNDNitrate as N, KCL Extract ASA33-8

05/22/19 12:41 / srm1lbs/acre1Nitrate as N, KCL Extract Calculation

METALS, AMMONIUM ACETATE EXTRACTABLE

D 05/20/19 22:20 / rlh1mg/kg113Potassium, Available SW6010B

D 05/20/19 22:20 / rlh0.006meq/100g2.25Sodium, extractable SW6010B

METALS, TOTAL - EPA SW846

05/24/19 16:15 / car1mg/kg46Arsenic SW6020

05/24/19 16:15 / car1mg/kgNDCadmium SW6020

05/28/19 18:08 / ped1mg/kg15Copper SW6020

05/24/19 16:15 / car1mg/kg10Lead SW6020

05/28/19 18:08 / ped1mg/kg45Zinc SW6020

RADIONUCLIDES

06/10/19 12:01 / eli-capCi/g-dry0.6Radium 226 E903.0

06/10/19 12:01 / eli-capCi/g-dry0.1Radium 226 precision (±) E903.0

06/10/19 12:01 / eli-capCi/g-dry0.04Radium 226 MDC E903.0

Report Definitions:

RL - Analyte reporting limit. MCL - Maximum contaminant level.

QCL - Quality control limit. ND - Not detected at the reporting limit.

Project: Riley Pass Greenhouse Study

Lab ID: B19050979-004

Client Sample ID: BH-9 1-18

Collection Date: 05/07/19

Matrix: Soil

Report Date: 07/01/19

DateReceived: 05/09/19

Prepared by Billings, MT Branch

Analyses Result Units Analysis Date / ByRL Method

MCL/

QCLQualifiers

PHYSICAL CHARACTERISTICS

05/14/19 10:32 / jlw0.2wt%23.3Moisture D2974

CHEMICAL CHARACTERISTICS

D 05/22/19 20:32 / rlh0.1meq/100g33.7Cation Exchange Capacity SW6010B

PHYSICAL CHARACTERISTICS

05/23/19 11:23 / srm1%24Sand ASA15-5

05/23/19 11:23 / srm1%57Silt ASA15-5

05/23/19 11:23 / srm1%19Clay ASA15-5

05/23/19 11:23 / srm1SiLTexture ASA15-5

- C = Clay, S = Sand(y), Si = Silt(y), L = Loam(y)

SATURATED PASTE EXTRACT

05/22/19 14:14 / srm0.1s.u.6.5pH, sat. paste ASA10-3

05/22/19 14:14 / srm0.1mmhos/cm0.4Conductivity, sat. paste ASA10-3

05/22/19 14:14 / srm0.1%51.0Saturation USDA27a

05/22/19 16:04 / rlh0.05meq/L2.62Calcium, sat. paste SW6010B

05/22/19 16:04 / rlh0.08meq/L1.18Magnesium, sat. paste SW6010B

05/22/19 16:04 / rlh0.03meq/L0.69Potassium, sat. paste SW6010B

05/22/19 16:04 / rlh0.04meq/L0.93Sodium, sat. paste SW6010B

05/23/19 09:34 / srm0.01unitless0.67Sodium Adsorption Ratio (SAR) Calculation

05/24/19 01:09 / mrc1mg/L35Sulfate E300.0

CHEMICAL CHARACTERISTICS

05/23/19 11:09 / srm0.2%6.6Organic Matter ASA29-3

05/22/19 16:22 / srm0.1%1.2Lime as CaCO3 USDA23c

05/23/19 11:18 / srm0.1%1.4Exchangeable Sodium Percentage USDA20a

05/22/19 11:27 / srm1mg/kg3Phosphorus, Olsen ASA24-5 05/20/19 15:25 / srm1mg/kg2Nitrate as N, KCL Extract ASA33-8

05/22/19 12:41 / srm1lbs/acre11Nitrate as N, KCL Extract Calculation

METALS, AMMONIUM ACETATE EXTRACTABLE

D 05/20/19 22:24 / rlh1mg/kg760Potassium, Available SW6010B

D 05/20/19 22:24 / rlh0.006meq/100g0.502Sodium, extractable SW6010B

METALS, TOTAL - EPA SW846

05/24/19 16:20 / car1mg/kg50Arsenic SW6020

05/24/19 16:20 / car1mg/kgNDCadmium SW6020

05/28/19 18:12 / ped1mg/kg15Copper SW6020

05/24/19 16:20 / car1mg/kg12Lead SW6020

05/28/19 18:12 / ped1mg/kg47Zinc SW6020

RADIONUCLIDES

06/10/19 12:01 / eli-capCi/g-dry0.6Radium 226 E903.0

06/10/19 12:01 / eli-capCi/g-dry0.1Radium 226 precision (±) E903.0

06/10/19 12:01 / eli-capCi/g-dry0.04Radium 226 MDC E903.0

Report Definitions:

RL - Analyte reporting limit. MCL - Maximum contaminant level.

QCL - Quality control limit. ND - Not detected at the reporting limit.

Project: Riley Pass Greenhouse Study

Lab ID: B19050979-005

Client Sample ID: BH-9 18-36

Collection Date: 05/07/19

Matrix: Soil

Report Date: 07/01/19

DateReceived: 05/09/19

Prepared by Billings, MT Branch

Analyses Result Units Analysis Date / ByRL Method

MCL/

QCLQualifiers

PHYSICAL CHARACTERISTICS

05/14/19 10:32 / jlw0.2wt%12.6Moisture D2974

CHEMICAL CHARACTERISTICS

D 05/22/19 20:36 / rlh0.1meq/100g21.4Cation Exchange Capacity SW6010B

PHYSICAL CHARACTERISTICS

05/23/19 11:23 / srm1%46Sand ASA15-5

05/23/19 11:23 / srm1%38Silt ASA15-5

05/23/19 11:23 / srm1%16Clay ASA15-5

05/23/19 11:23 / srm1LTexture ASA15-5

- C = Clay, S = Sand(y), Si = Silt(y), L = Loam(y)

SATURATED PASTE EXTRACT

05/22/19 14:14 / srm0.1s.u.7.4pH, sat. paste ASA10-3

05/22/19 14:14 / srm0.1mmhos/cm0.6Conductivity, sat. paste ASA10-3

05/22/19 14:14 / srm0.1%29.0Saturation USDA27a

05/22/19 16:17 / rlh0.05meq/L2.90Calcium, sat. paste SW6010B

05/22/19 16:17 / rlh0.08meq/L1.73Magnesium, sat. paste SW6010B

05/22/19 16:17 / rlh0.03meq/L0.11Potassium, sat. paste SW6010B

05/22/19 16:17 / rlh0.04meq/L2.18Sodium, sat. paste SW6010B

05/23/19 09:34 / srm0.01unitless1.44Sodium Adsorption Ratio (SAR) Calculation

05/24/19 01:26 / mrc1mg/L37Sulfate E300.0

CHEMICAL CHARACTERISTICS

05/23/19 11:09 / srm0.2%1.3Organic Matter ASA29-3

05/22/19 16:22 / srm0.1%3.0Lime as CaCO3 USDA23c

05/23/19 11:18 / srm0.1%9.5Exchangeable Sodium Percentage USDA20a

05/22/19 11:29 / srm1mg/kg2Phosphorus, Olsen ASA24-5 05/20/19 15:25 / srm1mg/kgNDNitrate as N, KCL Extract ASA33-8

05/22/19 12:41 / srm1lbs/acreNDNitrate as N, KCL Extract Calculation

METALS, AMMONIUM ACETATE EXTRACTABLE

D 05/20/19 22:29 / rlh1mg/kg253Potassium, Available SW6010B

D 05/20/19 22:29 / rlh0.006meq/100g2.10Sodium, extractable SW6010B

METALS, TOTAL - EPA SW846

05/24/19 16:43 / car1mg/kg44Arsenic SW6020

05/24/19 16:43 / car1mg/kgNDCadmium SW6020

05/28/19 18:36 / ped1mg/kg14Copper SW6020

05/24/19 16:43 / car1mg/kg10Lead SW6020

05/28/19 18:36 / ped1mg/kg43Zinc SW6020

RADIONUCLIDES

06/10/19 12:01 / eli-capCi/g-dry0.7Radium 226 E903.0

06/10/19 12:01 / eli-capCi/g-dry0.1Radium 226 precision (±) E903.0

06/10/19 12:01 / eli-capCi/g-dry0.04Radium 226 MDC E903.0

Report Definitions:

RL - Analyte reporting limit. MCL - Maximum contaminant level.

QCL - Quality control limit. ND - Not detected at the reporting limit.

Project: Riley Pass Greenhouse Study

Lab ID: B19050979-007

Client Sample ID: BH-9 44-60

Collection Date: 05/07/19

Matrix: Soil

Report Date: 07/01/19

DateReceived: 05/09/19

Prepared by Billings, MT Branch

Analyses Result Units Analysis Date / ByRL Method

MCL/

QCLQualifiers

PHYSICAL CHARACTERISTICS

05/14/19 10:32 / jlw0.2wt%10.8Moisture D2974

CHEMICAL CHARACTERISTICS

D 05/22/19 20:40 / rlh0.1meq/100g24.1Cation Exchange Capacity SW6010B

PHYSICAL CHARACTERISTICS

05/23/19 11:23 / srm1%34Sand ASA15-5

05/23/19 11:23 / srm1%48Silt ASA15-5

05/23/19 11:23 / srm1%18Clay ASA15-5

05/23/19 11:23 / srm1LTexture ASA15-5

- C = Clay, S = Sand(y), Si = Silt(y), L = Loam(y)

SATURATED PASTE EXTRACT

05/22/19 14:14 / srm0.1s.u.7.9pH, sat. paste ASA10-3

05/22/19 14:14 / srm0.1mmhos/cm0.6Conductivity, sat. paste ASA10-3

05/22/19 14:14 / srm0.1%36.0Saturation USDA27a

05/22/19 16:21 / rlh0.05meq/L2.29Calcium, sat. paste SW6010B

05/22/19 16:21 / rlh0.08meq/L2.26Magnesium, sat. paste SW6010B

05/22/19 16:21 / rlh0.03meq/L0.05Potassium, sat. paste SW6010B

05/22/19 16:21 / rlh0.04meq/L2.37Sodium, sat. paste SW6010B

05/23/19 09:34 / srm0.01unitless1.57Sodium Adsorption Ratio (SAR) Calculation

05/24/19 01:44 / mrc1mg/L41Sulfate E300.0

CHEMICAL CHARACTERISTICS

05/23/19 11:09 / srm0.2%1.9Organic Matter ASA29-3

05/22/19 16:22 / srm0.1%4.9Lime as CaCO3 USDA23c

05/23/19 11:18 / srm0.1%7.8Exchangeable Sodium Percentage USDA20a

05/22/19 11:31 / srm1mg/kg2Phosphorus, Olsen ASA24-5 05/20/19 15:26 / srm1mg/kgNDNitrate as N, KCL Extract ASA33-8

05/22/19 12:41 / srm1lbs/acre3Nitrate as N, KCL Extract Calculation

METALS, AMMONIUM ACETATE EXTRACTABLE

D 05/20/19 22:33 / rlh1mg/kg161Potassium, Available SW6010B

D 05/20/19 22:33 / rlh0.006meq/100g1.97Sodium, extractable SW6010B

METALS, TOTAL - EPA SW846

05/24/19 16:48 / car1mg/kg45Arsenic SW6020

05/24/19 16:48 / car1mg/kgNDCadmium SW6020

05/28/19 18:41 / ped1mg/kg14Copper SW6020

05/24/19 16:48 / car1mg/kg13Lead SW6020

05/28/19 18:41 / ped1mg/kg45Zinc SW6020

RADIONUCLIDES

06/10/19 12:01 / eli-capCi/g-dry0.6Radium 226 E903.0

06/10/19 12:01 / eli-capCi/g-dry0.1Radium 226 precision (±) E903.0

06/10/19 12:01 / eli-capCi/g-dry0.04Radium 226 MDC E903.0

Report Definitions:

RL - Analyte reporting limit. MCL - Maximum contaminant level.

QCL - Quality control limit. ND - Not detected at the reporting limit.

Project: Riley Pass Greenhouse Study

Lab ID: B19050979-008

Client Sample ID: BH-9 100-120

Collection Date: 05/08/19

Matrix: Soil

Report Date: 07/01/19

DateReceived: 05/09/19

Prepared by Billings, MT Branch

Analyses Result Units Analysis Date / ByRL Method

MCL/

QCLQualifiers

PHYSICAL CHARACTERISTICS

05/14/19 10:32 / jlw0.2wt%10.3Moisture D2974

CHEMICAL CHARACTERISTICS

D 05/22/19 20:44 / rlh0.1meq/100g21.3Cation Exchange Capacity SW6010B

PHYSICAL CHARACTERISTICS

05/23/19 11:23 / srm1%36Sand ASA15-5

05/23/19 11:23 / srm1%47Silt ASA15-5

05/23/19 11:23 / srm1%17Clay ASA15-5

05/23/19 11:23 / srm1LTexture ASA15-5

- C = Clay, S = Sand(y), Si = Silt(y), L = Loam(y)

SATURATED PASTE EXTRACT

05/22/19 14:14 / srm0.1s.u.7.9pH, sat. paste ASA10-3

05/22/19 14:14 / srm0.1mmhos/cm0.5Conductivity, sat. paste ASA10-3

05/22/19 14:14 / srm0.1%31.7Saturation USDA27a

05/22/19 16:25 / rlh0.05meq/L2.36Calcium, sat. paste SW6010B

05/22/19 16:25 / rlh0.08meq/L1.52Magnesium, sat. paste SW6010B

05/22/19 16:25 / rlh0.03meq/L0.04Potassium, sat. paste SW6010B

05/22/19 16:25 / rlh0.04meq/L2.29Sodium, sat. paste SW6010B

05/23/19 09:34 / srm0.01unitless1.65Sodium Adsorption Ratio (SAR) Calculation

05/24/19 02:01 / mrc1mg/L38Sulfate E300.0

CHEMICAL CHARACTERISTICS

05/23/19 11:09 / srm0.2%1.4Organic Matter ASA29-3

05/22/19 16:22 / srm0.1%9.1Lime as CaCO3 USDA23c

05/23/19 11:18 / srm0.1%8.7Exchangeable Sodium Percentage USDA20a

05/22/19 11:33 / srm1mg/kg2Phosphorus, Olsen ASA24-5 05/20/19 15:27 / srm1mg/kgNDNitrate as N, KCL Extract ASA33-8

05/22/19 12:41 / srm1lbs/acreNDNitrate as N, KCL Extract Calculation

METALS, AMMONIUM ACETATE EXTRACTABLE

D 05/20/19 22:37 / rlh1mg/kg88Potassium, Available SW6010B

D 05/20/19 22:37 / rlh0.006meq/100g1.94Sodium, extractable SW6010B

METALS, TOTAL - EPA SW846

05/24/19 16:53 / car1mg/kg39Arsenic SW6020

05/24/19 16:53 / car1mg/kgNDCadmium SW6020

05/28/19 18:45 / ped1mg/kg14Copper SW6020

05/24/19 16:53 / car1mg/kg11Lead SW6020

05/28/19 18:45 / ped1mg/kg48Zinc SW6020

RADIONUCLIDES

06/10/19 14:00 / eli-capCi/g-dry0.6Radium 226 E903.0

06/10/19 14:00 / eli-capCi/g-dry0.1Radium 226 precision (±) E903.0

06/10/19 14:00 / eli-capCi/g-dry0.04Radium 226 MDC E903.0

Report Definitions:

RL - Analyte reporting limit. MCL - Maximum contaminant level.

QCL - Quality control limit. ND - Not detected at the reporting limit.

Project: Riley Pass Greenhouse Study

Lab ID: B19050979-009

Client Sample ID: BH-9 120-131

Collection Date: 05/08/19

Matrix: Soil

Report Date: 07/01/19

DateReceived: 05/09/19

Prepared by Billings, MT Branch

Analyses Result Units Analysis Date / ByRL Method

MCL/

QCLQualifiers

PHYSICAL CHARACTERISTICS

05/14/19 10:32 / jlw0.2wt%10.2Moisture D2974

CHEMICAL CHARACTERISTICS

D 05/22/19 20:49 / rlh0.1meq/100g19.2Cation Exchange Capacity SW6010B

PHYSICAL CHARACTERISTICS

05/23/19 11:23 / srm1%34Sand ASA15-5

05/23/19 11:23 / srm1%49Silt ASA15-5

05/23/19 11:23 / srm1%17Clay ASA15-5

05/23/19 11:23 / srm1LTexture ASA15-5

- C = Clay, S = Sand(y), Si = Silt(y), L = Loam(y)

SATURATED PASTE EXTRACT

05/22/19 14:14 / srm0.1s.u.8.0pH, sat. paste ASA10-3

05/22/19 14:14 / srm0.1mmhos/cm0.6Conductivity, sat. paste ASA10-3

05/22/19 14:14 / srm0.1%25.2Saturation USDA27a

05/22/19 16:29 / rlh0.05meq/L1.87Calcium, sat. paste SW6010B

05/22/19 16:29 / rlh0.08meq/L1.24Magnesium, sat. paste SW6010B

05/22/19 16:29 / rlh0.03meq/LNDPotassium, sat. paste SW6010B

05/22/19 16:29 / rlh0.04meq/L3.65Sodium, sat. paste SW6010B

05/23/19 09:34 / srm0.01unitless2.93Sodium Adsorption Ratio (SAR) Calculation

05/24/19 02:19 / mrc1mg/L58Sulfate E300.0

CHEMICAL CHARACTERISTICS

05/23/19 11:09 / srm0.2%0.8Organic Matter ASA29-3

05/22/19 16:22 / srm0.1%10.4Lime as CaCO3 USDA23c

05/23/19 11:18 / srm0.1%13.9Exchangeable Sodium Percentage USDA20a

05/22/19 11:34 / srm1mg/kg2Phosphorus, Olsen ASA24-5 05/20/19 15:27 / srm1mg/kgNDNitrate as N, KCL Extract ASA33-8

05/22/19 12:41 / srm1lbs/acreNDNitrate as N, KCL Extract Calculation

METALS, AMMONIUM ACETATE EXTRACTABLE

D 05/20/19 22:49 / rlh1mg/kg63Potassium, Available SW6010B

D 05/20/19 22:49 / rlh0.006meq/100g2.77Sodium, extractable SW6010B

METALS, TOTAL - EPA SW846

05/24/19 16:57 / car1mg/kg33Arsenic SW6020

05/24/19 16:57 / car1mg/kgNDCadmium SW6020

05/28/19 18:55 / ped1mg/kg13Copper SW6020

05/24/19 16:57 / car1mg/kg12Lead SW6020

05/28/19 18:55 / ped1mg/kg41Zinc SW6020

RADIONUCLIDES

06/10/19 14:00 / eli-capCi/g-dry0.5Radium 226 E903.0

06/10/19 14:00 / eli-capCi/g-dry0.1Radium 226 precision (±) E903.0

06/10/19 14:00 / eli-capCi/g-dry0.04Radium 226 MDC E903.0

Report Definitions:

RL - Analyte reporting limit. MCL - Maximum contaminant level.

QCL - Quality control limit. ND - Not detected at the reporting limit.

Project: Riley Pass Greenhouse Study

Lab ID: B19050979-010

Client Sample ID: BH-10 0-36

Collection Date: 05/07/19

Matrix: Soil

Report Date: 07/01/19

DateReceived: 05/09/19

Prepared by Billings, MT Branch

Analyses Result Units Analysis Date / ByRL Method

MCL/

QCLQualifiers

PHYSICAL CHARACTERISTICS

05/14/19 10:32 / jlw0.2wt%9.6Moisture D2974

CHEMICAL CHARACTERISTICS

D 05/22/19 20:53 / rlh0.1meq/100g20.4Cation Exchange Capacity SW6010B

PHYSICAL CHARACTERISTICS

05/23/19 11:23 / srm1%58Sand ASA15-5

05/23/19 11:23 / srm1%31Silt ASA15-5

05/23/19 11:23 / srm1%11Clay ASA15-5

05/23/19 11:23 / srm1SLTexture ASA15-5

- C = Clay, S = Sand(y), Si = Silt(y), L = Loam(y)

SATURATED PASTE EXTRACT

05/22/19 14:14 / srm0.1s.u.7.8pH, sat. paste ASA10-3

05/22/19 14:14 / srm0.1mmhos/cm1.2Conductivity, sat. paste ASA10-3

05/22/19 14:14 / srm0.1%25.7Saturation USDA27a

05/22/19 16:33 / rlh0.05meq/L0.63Calcium, sat. paste SW6010B

05/22/19 16:33 / rlh0.08meq/L0.27Magnesium, sat. paste SW6010B

05/22/19 16:33 / rlh0.03meq/L0.09Potassium, sat. paste SW6010B

05/22/19 16:33 / rlh0.04meq/L14.7Sodium, sat. paste SW6010B

05/23/19 09:34 / srm0.01unitless21.9Sodium Adsorption Ratio (SAR) Calculation

05/24/19 02:37 / mrc1mg/L38Sulfate E300.0

CHEMICAL CHARACTERISTICS

05/23/19 11:09 / srm0.2%1.2Organic Matter ASA29-3

05/22/19 16:22 / srm0.1%3.1Lime as CaCO3 USDA23c

05/23/19 11:18 / srm0.1%52.3Exchangeable Sodium Percentage USDA20a

05/22/19 11:36 / srm1mg/kg1Phosphorus, Olsen ASA24-5 05/20/19 15:28 / srm1mg/kgNDNitrate as N, KCL Extract ASA33-8

05/22/19 12:41 / srm1lbs/acreNDNitrate as N, KCL Extract Calculation

METALS, AMMONIUM ACETATE EXTRACTABLE

D 05/20/19 22:53 / rlh1mg/kg75Potassium, Available SW6010B

D 05/20/19 22:53 / rlh0.006meq/100g11.0Sodium, extractable SW6010B

METALS, TOTAL - EPA SW846

05/24/19 17:07 / car1mg/kg9Arsenic SW6020

05/24/19 17:07 / car1mg/kgNDCadmium SW6020

05/31/19 21:54 / jdl1mg/kg3Copper SW6020

05/24/19 17:07 / car1mg/kg11Lead SW6020

05/31/19 21:54 / jdl1mg/kg9Zinc SW6020

RADIONUCLIDES

06/10/19 14:00 / eli-capCi/g-dry0.3Radium 226 E903.0

06/10/19 14:00 / eli-capCi/g-dry0.08Radium 226 precision (±) E903.0

06/10/19 14:00 / eli-capCi/g-dry0.04Radium 226 MDC E903.0

Report Definitions:

RL - Analyte reporting limit. MCL - Maximum contaminant level.

QCL - Quality control limit. ND - Not detected at the reporting limit.

Project: Riley Pass Greenhouse Study

Lab ID: B19050979-011

Client Sample ID: BH-5 10-33

Collection Date: 05/08/19

Matrix: Soil

Report Date: 07/01/19

DateReceived: 05/09/19

Prepared by Billings, MT Branch

Analyses Result Units Analysis Date / ByRL Method

MCL/

QCLQualifiers

PHYSICAL CHARACTERISTICS

05/14/19 10:32 / jlw0.2wt%7.0Moisture D2974

CHEMICAL CHARACTERISTICS

D 05/22/19 20:57 / rlh0.1meq/100g13.8Cation Exchange Capacity SW6010B

PHYSICAL CHARACTERISTICS

05/23/19 11:23 / srm1%46Sand ASA15-5

05/23/19 11:23 / srm1%41Silt ASA15-5

05/23/19 11:23 / srm1%13Clay ASA15-5

05/23/19 11:23 / srm1LTexture ASA15-5

- C = Clay, S = Sand(y), Si = Silt(y), L = Loam(y)

SATURATED PASTE EXTRACT

05/22/19 14:14 / srm0.1s.u.8.1pH, sat. paste ASA10-3

05/22/19 14:14 / srm0.1mmhos/cm0.7Conductivity, sat. paste ASA10-3

05/22/19 14:14 / srm0.1%30.1Saturation USDA27a

05/22/19 16:37 / rlh0.05meq/L1.12Calcium, sat. paste SW6010B

05/22/19 16:37 / rlh0.08meq/L1.64Magnesium, sat. paste SW6010B

05/22/19 16:37 / rlh0.03meq/LNDPotassium, sat. paste SW6010B

05/22/19 16:37 / rlh0.04meq/L6.18Sodium, sat. paste SW6010B

05/23/19 09:34 / srm0.01unitless5.26Sodium Adsorption Ratio (SAR) Calculation

05/24/19 02:54 / mrc1mg/L2Sulfate E300.0

CHEMICAL CHARACTERISTICS

05/23/19 11:09 / srm0.2%0.7Organic Matter ASA29-3

05/22/19 16:22 / srm0.1%7.2Lime as CaCO3 USDA23c

05/23/19 11:18 / srm0.1%13.8Exchangeable Sodium Percentage USDA20a

05/22/19 11:38 / srm1mg/kg1Phosphorus, Olsen ASA24-5 05/20/19 15:30 / srm1mg/kgNDNitrate as N, KCL Extract ASA33-8

05/22/19 12:41 / srm1lbs/acreNDNitrate as N, KCL Extract Calculation

METALS, AMMONIUM ACETATE EXTRACTABLE

D 05/20/19 22:57 / rlh1mg/kg60Potassium, Available SW6010B

D 05/20/19 22:57 / rlh0.006meq/100g2.09Sodium, extractable SW6010B

METALS, TOTAL - EPA SW846

05/24/19 17:12 / car1mg/kg27Arsenic SW6020

05/24/19 17:12 / car1mg/kgNDCadmium SW6020

05/28/19 19:04 / ped1mg/kg9Copper SW6020

05/24/19 17:12 / car1mg/kg8Lead SW6020

05/28/19 19:04 / ped1mg/kg36Zinc SW6020

RADIONUCLIDES

06/10/19 14:00 / eli-capCi/g-dry0.7Radium 226 E903.0

06/10/19 14:00 / eli-capCi/g-dry0.2Radium 226 precision (±) E903.0

06/10/19 14:00 / eli-capCi/g-dry0.04Radium 226 MDC E903.0

Report Definitions:

RL - Analyte reporting limit. MCL - Maximum contaminant level.

QCL - Quality control limit. ND - Not detected at the reporting limit.

Project: Riley Pass Greenhouse Study

Lab ID: B19050979-012

Client Sample ID: BH-5 33-60

Collection Date: 05/08/19

Matrix: Soil

Report Date: 07/01/19

DateReceived: 05/09/19

Prepared by Billings, MT Branch

Analyses Result Units Analysis Date / ByRL Method

MCL/

QCLQualifiers

PHYSICAL CHARACTERISTICS

05/14/19 10:32 / jlw0.2wt%21.5Moisture D2974

CHEMICAL CHARACTERISTICS

D 05/22/19 21:14 / rlh0.1meq/100g33.9Cation Exchange Capacity SW6010B

PHYSICAL CHARACTERISTICS

05/23/19 11:23 / srm1%38Sand ASA15-5

05/23/19 11:23 / srm1%54Silt ASA15-5

05/23/19 11:23 / srm1%8Clay ASA15-5

05/23/19 11:23 / srm1SiLTexture ASA15-5

- C = Clay, S = Sand(y), Si = Silt(y), L = Loam(y)

SATURATED PASTE EXTRACT

05/22/19 14:14 / srm0.1s.u.9.2pH, sat. paste ASA10-3

05/22/19 14:14 / srm0.1mmhos/cm0.7Conductivity, sat. paste ASA10-3

05/22/19 14:14 / srm0.1%128Saturation USDA27a

05/22/19 16:45 / rlh0.05meq/L0.15Calcium, sat. paste SW6010B

05/22/19 16:45 / rlh0.08meq/LNDMagnesium, sat. paste SW6010B

05/22/19 16:45 / rlh0.03meq/LNDPotassium, sat. paste SW6010B

05/22/19 16:45 / rlh0.04meq/L8.01Sodium, sat. paste SW6010B

05/23/19 09:34 / srm0.01unitless24.4Sodium Adsorption Ratio (SAR) Calculation

05/24/19 04:21 / mrc1mg/LNDSulfate E300.0

CHEMICAL CHARACTERISTICS

05/23/19 11:09 / srm0.2%0.4Organic Matter ASA29-3

05/22/19 16:22 / srm0.1%3.0Lime as CaCO3 USDA23c

05/23/19 11:18 / srm0.1%45.6Exchangeable Sodium Percentage USDA20a

05/22/19 11:40 / srm1mg/kg1Phosphorus, Olsen ASA24-5 05/20/19 15:32 / srm1mg/kgNDNitrate as N, KCL Extract ASA33-8

05/22/19 12:41 / srm1lbs/acreNDNitrate as N, KCL Extract Calculation

METALS, AMMONIUM ACETATE EXTRACTABLE

D 05/20/19 23:06 / rlh1mg/kg203Potassium, Available SW6010B

D 05/20/19 23:06 / rlh0.006meq/100g16.5Sodium, extractable SW6010B

METALS, TOTAL - EPA SW846

05/24/19 17:16 / car1mg/kg12Arsenic SW6020

05/24/19 17:16 / car1mg/kgNDCadmium SW6020

05/28/19 19:09 / ped1mg/kg10Copper SW6020

05/24/19 17:16 / car1mg/kg9Lead SW6020

05/28/19 19:09 / ped1mg/kg38Zinc SW6020

RADIONUCLIDES

06/10/19 14:00 / eli-capCi/g-dry1.7Radium 226 E903.0

06/10/19 14:00 / eli-capCi/g-dry0.3Radium 226 precision (±) E903.0

06/10/19 14:00 / eli-capCi/g-dry0.04Radium 226 MDC E903.0

Report Definitions:

RL - Analyte reporting limit. MCL - Maximum contaminant level.

QCL - Quality control limit. ND - Not detected at the reporting limit.

Project: Riley Pass Greenhouse Study

Lab ID: B19050979-013

Client Sample ID: BH-6 2-18

Collection Date: 05/07/19

Matrix: Soil

Report Date: 07/01/19

DateReceived: 05/09/19

Prepared by Billings, MT Branch

Analyses Result Units Analysis Date / ByRL Method

MCL/

QCLQualifiers

PHYSICAL CHARACTERISTICS

05/14/19 10:32 / jlw0.2wt%19.1Moisture D2974

CHEMICAL CHARACTERISTICS

D 05/22/19 21:22 / rlh0.1meq/100g18.0Cation Exchange Capacity SW6010B

PHYSICAL CHARACTERISTICS

05/24/19 09:08 / srm1%38Sand ASA15-5

05/24/19 09:08 / srm1%55Silt ASA15-5

05/24/19 09:08 / srm1%7Clay ASA15-5

05/24/19 09:08 / srm1SiLTexture ASA15-5

- C = Clay, S = Sand(y), Si = Silt(y), L = Loam(y)

SATURATED PASTE EXTRACT

05/22/19 14:14 / srm0.1s.u.6.7pH, sat. paste ASA10-3

05/22/19 14:14 / srm0.1mmhos/cm0.6Conductivity, sat. paste ASA10-3

05/22/19 14:14 / srm0.1%45.7Saturation USDA27a

05/22/19 16:54 / rlh0.05meq/L3.26Calcium, sat. paste SW6010B

05/22/19 16:54 / rlh0.08meq/L1.98Magnesium, sat. paste SW6010B

05/22/19 16:54 / rlh0.03meq/L0.08Potassium, sat. paste SW6010B

05/22/19 16:54 / rlh0.04meq/L1.54Sodium, sat. paste SW6010B

05/23/19 09:34 / srm0.01unitless0.95Sodium Adsorption Ratio (SAR) Calculation

05/24/19 04:39 / mrc1mg/L19Sulfate E300.0

CHEMICAL CHARACTERISTICS

05/23/19 11:09 / srm0.2%4.6Organic Matter ASA29-3

05/22/19 16:22 / srm0.1%1.1Lime as CaCO3 USDA23c

05/23/19 11:18 / srm0.1%2.9Exchangeable Sodium Percentage USDA20a

05/22/19 11:45 / srm1mg/kg2Phosphorus, Olsen ASA24-5 05/20/19 15:32 / srm1mg/kgNDNitrate as N, KCL Extract ASA33-8

05/22/19 12:41 / srm1lbs/acre4Nitrate as N, KCL Extract Calculation

METALS, AMMONIUM ACETATE EXTRACTABLE

D 05/20/19 23:14 / rlh1mg/kg140Potassium, Available SW6010B

D 05/20/19 23:14 / rlh0.006meq/100g0.585Sodium, extractable SW6010B

METALS, TOTAL - EPA SW846

05/24/19 17:21 / car1mg/kg17Arsenic SW6020

05/24/19 17:21 / car1mg/kgNDCadmium SW6020

05/28/19 19:13 / ped1mg/kg8Copper SW6020

05/24/19 17:21 / car1mg/kg8Lead SW6020

05/28/19 19:13 / ped1mg/kg31Zinc SW6020

RADIONUCLIDES

06/10/19 14:00 / eli-capCi/g-dry0.5Radium 226 E903.0

06/10/19 14:00 / eli-capCi/g-dry0.1Radium 226 precision (±) E903.0

06/10/19 14:00 / eli-capCi/g-dry0.04Radium 226 MDC E903.0

Report Definitions:

RL - Analyte reporting limit. MCL - Maximum contaminant level.

QCL - Quality control limit. ND - Not detected at the reporting limit.

Project: Riley Pass Greenhouse Study

Lab ID: B19050979-014

Client Sample ID: BH-6 18-35

Collection Date: 05/07/19

Matrix: Soil

Report Date: 07/01/19

DateReceived: 05/09/19

Prepared by Billings, MT Branch

Analyses Result Units Analysis Date / ByRL Method

MCL/

QCLQualifiers

PHYSICAL CHARACTERISTICS

05/14/19 10:32 / jlw0.2wt%7.2Moisture D2974

CHEMICAL CHARACTERISTICS

D 05/22/19 21:26 / rlh0.1meq/100g10.3Cation Exchange Capacity SW6010B

PHYSICAL CHARACTERISTICS

05/24/19 09:08 / srm1%56Sand ASA15-5

05/24/19 09:08 / srm1%38Silt ASA15-5

05/24/19 09:08 / srm1%6Clay ASA15-5

05/24/19 09:08 / srm1SLTexture ASA15-5

- C = Clay, S = Sand(y), Si = Silt(y), L = Loam(y)

SATURATED PASTE EXTRACT

05/22/19 14:14 / srm0.1s.u.7.1pH, sat. paste ASA10-3

05/22/19 14:14 / srm0.1mmhos/cm0.3Conductivity, sat. paste ASA10-3

05/22/19 14:14 / srm0.1%32.0Saturation USDA27a

05/22/19 17:06 / rlh0.05meq/L1.88Calcium, sat. paste SW6010B

05/22/19 17:06 / rlh0.08meq/L1.11Magnesium, sat. paste SW6010B

05/22/19 17:06 / rlh0.03meq/L0.07Potassium, sat. paste SW6010B

05/22/19 17:06 / rlh0.04meq/L1.24Sodium, sat. paste SW6010B

05/23/19 09:34 / srm0.01unitless1.01Sodium Adsorption Ratio (SAR) Calculation

05/24/19 04:56 / mrc1mg/LNDSulfate E300.0

CHEMICAL CHARACTERISTICS

05/23/19 11:09 / srm0.2%1.1Organic Matter ASA29-3

05/22/19 16:22 / srm0.1%1.1Lime as CaCO3 USDA23c

05/23/19 11:18 / srm0.1%4.9Exchangeable Sodium Percentage USDA20a

05/22/19 11:50 / srm1mg/kg2Phosphorus, Olsen ASA24-5 05/20/19 15:33 / srm1mg/kgNDNitrate as N, KCL Extract ASA33-8

05/22/19 12:41 / srm1lbs/acreNDNitrate as N, KCL Extract Calculation

METALS, AMMONIUM ACETATE EXTRACTABLE

D 05/20/19 23:18 / rlh1mg/kg87Potassium, Available SW6010B

D 05/20/19 23:18 / rlh0.006meq/100g0.549Sodium, extractable SW6010B

METALS, TOTAL - EPA SW846

05/24/19 17:26 / car1mg/kg7Arsenic SW6020

05/24/19 17:26 / car1mg/kgNDCadmium SW6020

05/28/19 19:18 / ped1mg/kg5Copper SW6020

05/24/19 17:26 / car1mg/kg5Lead SW6020

05/28/19 19:18 / ped1mg/kg38Zinc SW6020

RADIONUCLIDES

06/10/19 14:00 / eli-capCi/g-dry0.4Radium 226 E903.0

06/10/19 14:00 / eli-capCi/g-dry0.09Radium 226 precision (±) E903.0

06/10/19 14:00 / eli-capCi/g-dry0.04Radium 226 MDC E903.0

Report Definitions:

RL - Analyte reporting limit. MCL - Maximum contaminant level.

QCL - Quality control limit. ND - Not detected at the reporting limit.

Project: Riley Pass Greenhouse Study

Lab ID: B19050979-015

Client Sample ID: BH-6 35-60

Collection Date: 05/07/19

Matrix: Soil

Report Date: 07/01/19

DateReceived: 05/09/19

Prepared by Billings, MT Branch

Analyses Result Units Analysis Date / ByRL Method

MCL/

QCLQualifiers

PHYSICAL CHARACTERISTICS

05/14/19 10:32 / jlw0.2wt%10.4Moisture D2974

CHEMICAL CHARACTERISTICS

D 05/22/19 21:30 / rlh0.1meq/100g12.9Cation Exchange Capacity SW6010B

PHYSICAL CHARACTERISTICS

05/24/19 09:08 / srm1%56Sand ASA15-5

05/24/19 09:08 / srm1%34Silt ASA15-5

05/24/19 09:08 / srm1%10Clay ASA15-5

05/24/19 09:08 / srm1SLTexture ASA15-5

- C = Clay, S = Sand(y), Si = Silt(y), L = Loam(y)

SATURATED PASTE EXTRACT

05/22/19 14:14 / srm0.1s.u.7.2pH, sat. paste ASA10-3

05/22/19 14:14 / srm0.1mmhos/cm0.3Conductivity, sat. paste ASA10-3

05/22/19 14:14 / srm0.1%34.9Saturation USDA27a

05/22/19 17:10 / rlh0.05meq/L1.64Calcium, sat. paste SW6010B

05/22/19 17:10 / rlh0.08meq/L1.07Magnesium, sat. paste SW6010B

05/22/19 17:10 / rlh0.03meq/L0.04Potassium, sat. paste SW6010B

05/22/19 17:10 / rlh0.04meq/L1.53Sodium, sat. paste SW6010B

05/23/19 09:34 / srm0.01unitless1.32Sodium Adsorption Ratio (SAR) Calculation

05/24/19 05:14 / mrc1mg/LNDSulfate E300.0

CHEMICAL CHARACTERISTICS

05/23/19 11:09 / srm0.2%0.5Organic Matter ASA29-3

05/22/19 16:22 / srm0.1%1.6Lime as CaCO3 USDA23c

05/23/19 11:18 / srm0.1%6.9Exchangeable Sodium Percentage USDA20a

05/22/19 11:52 / srm1mg/kg3Phosphorus, Olsen ASA24-5 05/20/19 15:34 / srm1mg/kgNDNitrate as N, KCL Extract ASA33-8

05/22/19 12:41 / srm1lbs/acreNDNitrate as N, KCL Extract Calculation

METALS, AMMONIUM ACETATE EXTRACTABLE

D 05/20/19 23:22 / rlh1mg/kg78Potassium, Available SW6010B

D 05/20/19 23:22 / rlh0.006meq/100g0.944Sodium, extractable SW6010B

METALS, TOTAL - EPA SW846

05/24/19 17:30 / car1mg/kg9Arsenic SW6020

05/24/19 17:30 / car1mg/kgNDCadmium SW6020

05/28/19 19:27 / ped1mg/kg8Copper SW6020

05/24/19 17:30 / car1mg/kg6Lead SW6020

05/28/19 19:27 / ped1mg/kg50Zinc SW6020

RADIONUCLIDES

06/10/19 14:00 / eli-capCi/g-dry0.6Radium 226 E903.0

06/10/19 14:00 / eli-capCi/g-dry0.1Radium 226 precision (±) E903.0

06/10/19 14:00 / eli-capCi/g-dry0.04Radium 226 MDC E903.0

Report Definitions:

RL - Analyte reporting limit. MCL - Maximum contaminant level.

QCL - Quality control limit. ND - Not detected at the reporting limit.

Project: Riley Pass Greenhouse Study

Lab ID: B19050979-016

Client Sample ID: BH-6 108-118

Collection Date: 05/08/19

Matrix: Soil

Report Date: 07/01/19

DateReceived: 05/09/19

Prepared by Billings, MT Branch

Analyses Result Units Analysis Date / ByRL Method

MCL/

QCLQualifiers

PHYSICAL CHARACTERISTICS

05/14/19 10:32 / jlw0.2wt%16.1Moisture D2974

CHEMICAL CHARACTERISTICS

D 05/22/19 21:34 / rlh0.1meq/100g8.8Cation Exchange Capacity SW6010B

PHYSICAL CHARACTERISTICS

05/24/19 09:08 / srm1%60Sand ASA15-5

05/24/19 09:08 /…