RFP_W912UM-_17-R-0002.pdf

SEE ADDENDUM

(No Collect Calls)

W912UM-17-R-0002 13-Mar-2017

b. TELEPHONE NUMBER

0503-321-6089

8. OFFER DUE DATE/LOCAL TIME

04:00 PM 14 Apr 2017

5. SOLICITATION NUMBER 6. SOLICITATION ISSUE DATE

AUTHORIZED FOR LOCAL REPRODUCTION

PREVIOUS EDITION IS NOT USABLE

STANDARD FORM 1449 (REV. 2/2012)

Prescribed by GSA – FAR (48 CFR) 53.212

(TYPE OR PRINT)

(SIGNATURE OF CONTRACTING OFFICER)

ADDENDA ARE

26. TOTAL AWARD AMOUNT (For Gov t. Use Only )

23.

CODE 10. THIS ACQUISITION IS

SUCH ADDRESS IN OFFER

17b. CHECK IF REMITTANCE IS DIFFERENT AND PUT

BELOW IS CHECKED

TELEPHONE NO.

W912UM9. ISSUED BY

18b. SUBMIT INVOICES TO ADDRESS SHOWN IN BLOCK 18a. UNLESS BLOCK

7. FOR SOLICITATION

INFORMATION CALL:

a. NAME

UN+KYONG HAN

2. CONTRACT NO. 3. AWARD/EFFECTIVE DATE 4. ORDER NUMBER

(TYPE OR PRINT)

30b. NAME AND TITLE OF SIGNER 30c. DATE SIGNED 31b. NAME OF CONTRACTING OFFICER

30a. SIGNATURE OF OFFEROR/CONTRACTOR 31a.UNITED STATES OF AMERICA

0 27a. SOLICITATION INCORPORATES BY REFERENCE FAR 52.212-1. 52.212-4. FAR 52.212-3. 52.212-5 ARE ATTACHED.

25. ACCOUNTING AND APPROPRIATION DATA

1. REQUISITION NUMBER

20.

ADDITIONAL SHEETS SUBJECT TO THE TERMS AND CONDITIONS SPECIFIED.

OFFEROR TO COMPLETE BLOCKS 12, 17, 23, 24, AND 30

SOLICITATION/CONTRACT/ORDER FOR COMMERCIAL ITEMS

ARE NOT ATTACHED

27b. CONTRACT/PURCHASE ORDER INCORPORATES BY REFERENCE FAR 52.212-4. FAR 52.212-5 IS ATTACHED. ADDENDA ARE ARE NOT ATTACHED

(BLOCK 5), INCLUDING ANY ADDITIONS OR CHANGES WHICH ARE

SET FORTH HEREIN, IS ACCEPTED AS TO ITEMS:

. YOUR OFFER ON SOLICITATION

28. CONTRACTOR IS REQUIRED TO SIGN THIS DOCUMENT AND RETURN

% FOR:SET ASIDE:UNRESTRICTED ORX

SMALL BUSINESS

WOMEN-OWNED SMALL

BUSINESS (WOSB)

17a.CONTRACTOR/ CODE FACILITY

OFFEROR CODE

CONTRACTING DIVISION

U.S. ARMY CORPS OF ENGINEERS

FAR EAST DISTRICT

UNIT #15546

APO AP 96205-5546

18a. PAYMENT WILL BE MADE BY CODE

RATED ORDER UNDER

DPAS (15 CFR 700)

13a. THIS CONTRACT IS A

13b. RATING

CODE15. DELIVER TO CODE 16. ADMINISTERED BY

SEE SCHEDULE

12. DISCOUNT TERMS11. DELIVERY FOR FOB DESTINA-

TION UNLESS BLOCK IS

MARKED

SEE SCHEDULE

14. METHOD OF SOLICITATION

RFQ IFB RFPX

82-2-2269-3411FAX:

TEL: 82-2-2270-7206 SERVICE-DISABLED

VETERAN-OWNED

SMALL BUSINESS

8(A)

HUBZONE SMALL

BUSINESS

ECONOMICALLY DISADVANTAGED

WOMEN-OWNED SMALL BUSINESS

(EDWOSB)

SIZE STANDARD:

NAICS:

213115

X

OFFER DATED

29. AWARD OF CONTRACT: REF.

DELIVER ALL ITEMS SET FORTH OR OTHERWISE IDENTIFIED ABOVE AND ON ANY

COPIES TO ISSUING OFFICE. CONTRACTOR AGREES TO FURNISH AND

EMAIL:

TEL:

31c. DATE SIGNED

SEE SCHEDULE

SCHEDULE OF SUPPLIES/ SERVICESITEM NO. QUANTITY UNIT UNIT PRICE AMOUNT

24.22.21.19.

32g. E-MAIL OF AUTHORIZED GOVERNMENT REPRESENTATIVE

SOLICITATION/CONTRACT/ORDER FOR COMMERCIAL ITEMS

(CONTINUED)

ACCEPTED, AND CONFORMS TO THE CONTRACT, EXCEPT AS NOTED: ______________________________________________________

32a. QUANTITY IN COLUMN 21 HAS BEEN

RECEIVED INSPECTED

32b. SIGNATURE OF AUTHORIZED GOVERNMENT

REPRESENTATIVE

32c. DATE 32d. PRINTED NAME AND TITLE OF AUTHORIZED GOVERNMENT

REPRESENTATIVE

32e. MAILING ADDRESS OF AUTHORIZED GOVERNMENT REPRESENTATIVE 32f . TELEPHONE NUMBER OF AUTHORIZED GOVERNMENT REPRESENTATIVE

37. CHECK NUMBER

FINALPARTIALCOMPLETE

36. PAYMENT35. AMOUNT VERIFIED

CORRECT FOR

34. VOUCHER NUMBER

FINAL

33. SHIP NUMBER

PARTIAL

38. S/R ACCOUNT NUMBER 39. S/R VOUCHER NUMBER 40. PAID BY

41a. I CERTIFY THIS ACCOUNT IS CORRECT AND PROPER FOR PAYMENT 41b. SIGNATURE AND TITLE OF CERTIFYING OFFICER 41c. DATE

42a. RECEIVED BY (Print)

42b. RECEIVED AT (Location)

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STANDARD FORM 1449 (REV. 2/2012) BACK

Prescribed by GSA – FAR (48 CFR) 53.212

AUTHORIZED FOR LOCAL REPRODUCTION

PREVIOUS EDITION IS NOT USABLE

SEE SCHEDULE

20.

SCHEDULE OF SUPPLIES/ SERVICES

21.

QUANTITY UNIT

22. 23.

UNIT PRICE

24.

AMOUNT

19.

ITEM NO.

W912UM-17-R-0002

Section SF 1449 - CONTINUATION SHEET

ITEM NO SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT

0001 1 Job Geotechnical Drilling and Sampling

FFP

In-Situ Testing, Geophysical Investigation Services at various locations in Korea

Contractor shall provide the services in accordance with the Scope of Work dated 11 January 2017. The estimated quantities and unit prices for each type of drilling, sampling and testing are identified in the Pre-Priced Item List.

Base Year:

Period of performance of this CLIN is 12 months from the date of contract award.

NET AMT

1001 1 Job Geotechnical Drilling and Sampling

FFP

In-Situ Testing, Geophysical Investigation Services at various locations in Korea

Contractor shall provide the services in accordance with the Scope of Work dated 11 January 2017. The estimated quantities and unit prices for each type of drilling, sampling and testing are identified in the Pre-Priced Item List.

1st Option Year:

2001 1 Job Geotechnical Drilling and Sampling

FFP

In-Situ Testing, Geophysical Investigation Services at various locations in Korea

Contractor shall provide the services in accordance with the Scope of Work dated 11 January 2017. The estimated quantities and unit prices for each type of drilling, sampling and testing are identified in the Pre-Priced Item List.

2nd Option Year:

9999 1 Job Contractor Manpower Reporting (CMR)

FFP

in accordance with the CMR identified in the Section G in the SOW.

SOW

CONTRACT SPECIFICATION FOR GEOTECHNICAL DRILLING AND

SAMPLING, IN-SITU TESTING, AND GEOPHYSICAL INVESTIGATION

AT VARIOUS LOCATIONS, KOREA

11 January 2017

SECTION A. INTRODUCTION

A. INTRODUCTION

The General Schedule of Services is divided into six Sections as described below:

Section A: Introduction. Contains the outline for this Schedule of Services.

Section B: Scope and Schedule of Services B-1 Scope of Contract B-2 Schedule of Services

Section C: Description and Specifications - Technical Provisions C-1 Scope and Location of Work C-2 Purpose of Work C-3 Site Access C-4 Mobilization and Demobilization C-5 Sample Containers and Boring Log Forms C-6 Care and Delivery of Samples C-7 Supplementary Boreholes C-8 Encased Borings C-9 Split-Barrel Sampling, Standard Penetration Testing and Thin-Wall Shelby Tube Sampling C-10 Rock Core Drilling C-11 Grout In-Filling of Boreholes C-12 Contaminated Materials C-13 Borehole Logging C-14 In-Situ Testing C-15 Capability of Drilling Equipment C-16 Groundwater Records and Piezometer Installation C-17 Disposition of Holes and Borehole Site Cleanup C-18 Geophysical Investigation – Downhole Logging C-19 Direct Push Sampling System C-20 Survey C-21 Contractor Personnel C-22 Measurement and Payment

Section D: Inspection and Acceptance

Section E: Deliveries or Performance E-1 Period of service

Section F: Special Provisions

Section G: Contract Manpower Report (CMR)

Section H: Performance Requirements Summary (PRS)

SECTION B. SCOPE AND SCHEDULE OF SERVICES

B-1. SCOPE OF CONTRACT

The Contractor shall provide all necessary management, supervision, materials, labor, equipment, transportation and any incidental services required to perform the following work in accordance with the enclosed “Technical Provisions for Geotechnical Drilling and Sampling, In-Situ Testing, and Geophysical Investigation at Various Locations, Korea”.

B-2. SCHEDULE OF SERVICES

Items listed below are the pre-priced items list. The unit price for each item includes full compensation for furnishing all plant, labor, equipment and supplies and performing all operations required to complete the Work. Project area zones I, II, and III boundary map is shown in Appendix

1. Unit abbreviation: EA - Each, LM-Linear Meters, M3 – Cubic meters, and HR – Hour

Basic Year:

Item No. Supplies/Service Unit Estimated Qty

0001 Zone I Drilling Activities ----

0001AA Mobilization and Demobilization (Zone I) EA 10

0001AB Encased Boring, Rig Type I LM 200

0001AC Encased Boring, Rig Type II LM 1,400

0001AD Split-Barrel Sampling and Standard Penetration Testing (SPT) EA 1,600

0001AE Thin-Wall Shelby Tube Sampling EA 60

0001AF Rock Core Drilling LM 60

0001AG Grout In-Filling of Boreholes M3 20

0001AH In-Situ Testing – CPTu LM 80

0001AJ In-Situ Testing – CPT Pore Pressure Dissipation Test EA 10

0001AK In-Situ Testing – Field Vane Shear Test EA 10

0001AL In-Situ Testing – Pressuremeter Test EA 5

0001AM Downhole Logging – Optical Televiewer LM 30

0001AN Downhole Logging – Acoustic Televiewer LM 30

0001AP Downhole Logging – Caliper LM 30

0001AQ Downhole Logging – Normal Resistivity LM 30

0001AR Downhole Logging – Fluid Temperature/ Resistivity LM 30

0001AS Downhole Logging – Spinner Flowmeter LM 30

0001AT Downhole Logging – Heat Pulse Flowmeter LM 30

0001AU Direct Push Sampling System LM 100

0001AV Install Piezometer LM 50

0001AW Geologist HR 200

0001AX 0.43m3 Backhoe Excavation of Test Pit HR 80

0001AY Compressor HR 40

0001AZ Crane (10 ton) HR 40

0001BA Crane (25 ton) HR 40

0001BB Survey HR 32

0002 Zone II Drilling Activities ----

0002AA Mobilization and Demobilization (Zone II) EA 5

0002AB Encased Boring, Rig Type I LM 100

0002AC Encased Boring, Rig Type II LM 500

0002AD Split-Barrel Sampling and Standard Penetration Testing (SPT) EA 600

0002AE Thin-Wall Shelby Tube Sampling EA 20

0002AF Rock Core Drilling LM 80

0002AG Grout In-Filling of Boreholes M3 10

0002AH In-Situ Testing – CPTu LM 100

0002AJ In-Situ Testing – CPT Pore Pressure Dissipation Test EA 10

0002AK In-Situ Testing – Field Vane Shear Test EA 10

0002AL In-Situ Testing – Pressuremeter Test EA 5

0002AM Downhole Logging – Optical Televiewer LM 30

0002AN Downhole Logging – Acoustic Televiewer LM 30

0002AP Downhole Logging – Caliper LM 30

0002AQ Downhole Logging – Normal Resistivity LM 30

0002AR Downhole Logging – Fluid Temperature/ Resistivity LM 30

0002AS Downhole Logging – Spinner Flowmeter LM 30

0002AT Downhole Logging – Heat Pulse Flowmeter LM 30

0002AU Direct Push Sampling System LM 100

0002AV Install Piezometer LM 30

0002AW Geologist HR 80

0002AX 0.43m3 Backhoe Excavation of Test Pit HR 40

0002AY Compressor HR 24

0002AZ Crane (10 ton) HR 24

0002BA Crane (25 ton) HR 24

0002BB Survey HR 16

0003 Zone III Drilling Activities ----

0003AA Mobilization and Demobilization (Zone III) EA 5

0003AB Encased Boring, Rig Type I LM 50

0003AC Encased Boring, Rig Type II LM 500

0002AD Split-Barrel Sampling and Standard Penetration Testing (SPT) EA 550

0003AE Thin-Wall Shelby Tube Sampling EA 20

0003AF Rock Core Drilling LM 80

0003AG Grout In-Filling of Boreholes M3 10

0003AH In-Situ Testing – CPTu LM 50

0003AJ In-Situ Testing – CPT Pore Pressure Dissipation Test EA 5

0003AK In-Situ Testing – Field Vane Shear Test EA 5

0003AL In-Situ Testing – Pressuremeter Test EA 5

0003AM Downhole Logging – Optical Televiewer LM 30

0003AN Downhole Logging – Acoustic Televiewer LM 30

0003AP Downhole Logging – Caliper LM 30

0003AQ Downhole Logging – Normal Resistivity LM 30

0003AR Downhole Logging – Fluid Temperature/ Resistivity LM 30

0003AS Downhole Logging – Spinner Flowmeter LM 30

0003AT Downhole Logging – Heat Pulse Flowmeter LM 30

0003AU Direct Push Sampling System LM 90

0003AV Install Piezometer LM 30

0003AW Geologist HR 80

0003AX 0.43m3 Backhoe Excavation of Test Pit HR 40

0003AY Compressor HR 24

0003AZ Crane (10 ton) HR 24

0003BA Crane (25 ton) HR 24

0003BB Survey HR 16

1st Option Year

1001 Zone I Drilling Activities ----

1001AA Mobilization and Demobilization (Zone I) EA 5

1001AB Encased Boring, Rig Type I LM 100

1001AC Encased Boring, Rig Type II LM 900

1001AD Split-Barrel Sampling and Standard Penetration Testing (SPT) EA 1,000

1001AE Thin-Wall Shelby Tube Sampling EA 60

1001AF Rock Core Drilling LM 60

1001AG Grout In-Filling of Boreholes M3 20

1001AH In-Situ Testing – CPTu LM 80

1001AJ In-Situ Testing – CPT Pore Pressure Dissipation Test EA 10

1001AK In-Situ Testing – Field Vane Shear Test EA 10

1001AL In-Situ Testing – Pressuremeter Test EA 5

1001AM Downhole Logging – Optical Televiewer LM 30

1001AN Downhole Logging – Acoustic Televiewer LM 30

1001AP Downhole Logging – Caliper LM 30

1001AQ Downhole Logging – Normal Resistivity LM 30

1001AR Downhole Logging – Fluid Temperature/ Resistivity LM 30

1001AS Downhole Logging – Spinner Flowmeter LM 30

1001AT Downhole Logging – Heat Pulse Flowmeter LM 30

1001AU Direct Push Sampling System LM 50

1001AV Install Piezometer LM 200

1001AW Geologist HR 200

1001AX 0.43m3 Backhoe Excavation of Test Pit HR 80

1001AY Compressor HR 40

1001AZ Crane (10 ton) HR 40

1001BA Crane (25 ton) HR 40

1001BB Survey HR 32

1002 Zone II Drilling Activities ----

1002AA Mobilization and Demobilization (Zone II) EA 3

1002AB Encased Boring, Rig Type I LM 50

1002AC Encased Boring, Rig Type II LM 450

1002AD Split-Barrel Sampling and Standard Penetration Testing (SPT) EA 500

1002AE Thin-Wall Shelby Tube Sampling EA 20

1002AF Rock Core Drilling LM 80

1002AG Grout In-Filling of Boreholes M3 10

1002AH In-Situ Testing – CPTu LM 100

1002AJ In-Situ Testing – CPT Pore Pressure Dissipation Test EA 10

1002AK In-Situ Testing – Field Vane Shear Test EA 10

1002AL In-Situ Testing – Pressuremeter Test EA 5

1002AM Downhole Logging – Optical Televiewer LM 30

1002AN Downhole Logging – Acoustic Televiewer LM 30

1002AP Downhole Logging – Caliper LM 30

1002AQ Downhole Logging – Normal Resistivity LM 30

1002AR Downhole Logging – Fluid Temperature/ Resistivity LM 30

1002AS Downhole Logging – Spinner Flowmeter LM 30

1002AT Downhole Logging – Heat Pulse Flowmeter LM 30

1002AU Direct Push Sampling System LM 100

1002AV Install Piezometer LM 30

1002AW Geologist HR 80

1002AX 0.43m3 Backhoe Excavation of Test Pit HR 40

1002AY Compressor HR 24

1002AZ Crane (10 ton) HR 24

1002BA Crane (25 ton) HR 24

1002BB Survey HR 16

1003 Zone III Drilling Activities ----

1003AA Mobilization and Demobilization (Zone III) EA 3

1003AB Encased Boring, Rig Type I LM 50

1003AC Encased Boring, Rig Type II LM 450

1002AD Split-Barrel Sampling and Standard Penetration Testing (SPT) EA 500

1003AE Thin-Wall Shelby Tube Sampling EA 20

1003AF Rock Core Drilling LM 80

1003AG Grout In-Filling of Boreholes M3 10

1003AH In-Situ Testing – CPTu LM 50

1003AJ In-Situ Testing – CPT Pore Pressure Dissipation Test EA 5

1003AK In-Situ Testing – Field Vane Shear Test EA 5

1003AL In-Situ Testing – Pressuremeter Test EA 5

1003AM Downhole Logging – Optical Televiewer LM 30

1003AN Downhole Logging – Acoustic Televiewer LM 30

1003AP Downhole Logging – Caliper LM 30

1003AQ Downhole Logging – Normal Resistivity LM 30

1003AR Downhole Logging – Fluid Temperature/ Resistivity LM 30

1003AS Downhole Logging – Spinner Flowmeter LM 30

1003AT Downhole Logging – Heat Pulse Flowmeter LM 30

1003AU Direct Push Sampling System LM 90

1003AV Install Piezometer LM 30

1003AW Geologist HR 80

1003AX 0.43m3 Backhoe Excavation of Test Pit HR 40

1003AY Compressor HR 24

1003AZ Crane (10 ton) HR 24

1003BA Crane (25 ton) HR 24

1003BB Survey HR 16

2nd Option Year

2001 Zone I Drilling Activities ----

2001AA Mobilization and Demobilization (Zone I) EA 5

2001AB Encased Boring, Rig Type I LM 100

2001AC Encased Boring, Rig Type II LM 600

2001AD Split-Barrel Sampling and Standard Penetration Testing (SPT) EA 700

2001AE Thin-Wall Shelby Tube Sampling EA 50

2001AF Rock Core Drilling LM 30

2001AG Grout In-Filling of Boreholes M3 20

2001AH In-Situ Testing – CPTu LM 50

2001AJ In-Situ Testing – CPT Pore Pressure Dissipation Test EA 5

2001AK In-Situ Testing – Field Vane Shear Test EA 5

2001AL In-Situ Testing – Pressuremeter Test EA 3

2001AM Downhole Logging – Optical Televiewer LM 30

2001AN Downhole Logging – Acoustic Televiewer LM 30

2001AP Downhole Logging – Caliper LM 30

2001AQ Downhole Logging – Normal Resistivity LM 30

2001AR Downhole Logging – Fluid Temperature/ Resistivity LM 30

2001AS Downhole Logging – Spinner Flowmeter LM 30

2001AT Downhole Logging – Heat Pulse Flowmeter LM 30

2001AU Direct Push Sampling System LM 50

2001AV Install Piezometer LM 50

2001AW Geologist HR 200

2001AX 0.43m3 Backhoe Excavation of Test Pit HR 80

2001AY Compressor HR 20

2001AZ Crane (10 ton) HR 20

2001BA Crane (25 ton) HR 20

2001BB Survey HR 16

2002 Zone II Drilling Activities ----

2002AA Mobilization and Demobilization (Zone II) EA 3

2002AB Encased Boring, Rig Type I LM 50

2002AC Encased Boring, Rig Type II LM 350

2002AD Split-Barrel Sampling and Standard Penetration Testing (SPT) EA 400

2002AE Thin-Wall Shelby Tube Sampling EA 20

2002AF Rock Core Drilling LM 80

2002AG Grout In-Filling of Boreholes M3 10

2002AH In-Situ Testing – CPTu LM 50

2002AJ In-Situ Testing – CPT Pore Pressure Dissipation Test EA 5

2002AK In-Situ Testing – Field Vane Shear Test EA 5

2002AL In-Situ Testing – Pressuremeter Test EA 5

2002AM Downhole Logging – Optical Televiewer LM 30

2002AN Downhole Logging – Acoustic Televiewer LM 30

2002AP Downhole Logging – Caliper LM 30

2002AQ Downhole Logging – Normal Resistivity LM 30

2002AR Downhole Logging – Fluid Temperature/ Resistivity LM 30

2002AS Downhole Logging – Spinner Flowmeter LM 30

2002AT Downhole Logging – Heat Pulse Flowmeter LM 30

2002AU Direct Push Sampling System LM 100

2002AV Install Piezometer LM 30

2002AW Geologist HR 40

2002AX 0.43m3 Backhoe Excavation of Test Pit HR 40

2002AY Compressor HR 24

2002AZ Crane (10 ton) HR 24

2002BA Crane (25 ton) HR 24

2002BB Survey HR 16

2003 Zone III Drilling Activities ----

2003AA Mobilization and Demobilization (Zone III) EA 3

2003AB Encased Boring, Rig Type I LM 50

2003AC Encased Boring, Rig Type II LM 350

2002AD Split-Barrel Sampling and Standard Penetration Testing (SPT) EA 400

2003AE Thin-Wall Shelby Tube Sampling EA 20

2003AF Rock Core Drilling LM 80

2003AG Grout In-Filling of Boreholes M3 10

2003AH In-Situ Testing – CPTu LM 50

2003AJ In-Situ Testing – CPT Pore Pressure Dissipation Test EA 5

2003AK In-Situ Testing – Field Vane Shear Test EA 5

2003AL In-Situ Testing – Pressuremeter Test EA 5

2003AM Downhole Logging – Optical Televiewer LM 30

2003AN Downhole Logging – Acoustic Televiewer LM 30

2003AP Downhole Logging – Caliper LM 30

2003AQ Downhole Logging – Normal Resistivity LM 30

2003AR Downhole Logging – Fluid Temperature/ Resistivity LM 30

2003AS Downhole Logging – Spinner Flowmeter LM 30

2003AT Downhole Logging – Heat Pulse Flowmeter LM 30

2003AU Direct Push Sampling System LM 90

2003AV Install Piezometer LM 30

2003AW Geologist HR 32

2003AX 0.43m3 Backhoe Excavation of Test Pit HR 40

2003AY Compressor HR 24

2003AZ Crane (10 ton) HR 24

2003BA Crane (25 ton) HR 24

2003BB Survey HR 16

SECTION C. DESCRIPTIONS AND SPECIFICATIONS

SCOPE OF WORK

TECHNICAL PROVISIONS

GEOTECHNICAL DRILLING AND SAMPLING, IN-SITU TESTING, AND GEOPHYSICAL

INVESTIGATION AT VARIOUS LOCATIONS, KOREA

C-1. SCOPE AND LOCATION OF WORK

The work to be performed under this contract includes the furnishing of all materials, labor, tools, equipment, supplies including fuel, vehicular transportation, power and water, and all else necessary to complete geotechnical exploratory program as described herein, on or adjacent to US military installations throughout Korea (Army, Air Force, Navy, and Marines). The work consists of encased exploratory borings, preparation of boring logs, collection of representative soil samples, rock core drilling, direct push drilling and sampling, measurements of static groundwater level within boreholes, In-situ testing, geophysical exploration, and delivery of soil samples and test results to the Far East District (FED) Materials Testing Laboratory (MTL) in Seoul.

C-1.1 Project-specific firm fixed-price task orders will be issued by the Contracting Officer (KO) under the terms of the basic contract. Each task order will provide tentative borehole locations, drilling and sampling depths, In-situ testing location and depth, or geophysical down hole logging location and depth. However, the Government may revise location and depth of boring, in-situ testing, and geophysical exploration during the work. All work will be performed as required in the statement of work, in strict accordance with these specifications and schedule provided by the KO or Contracting Officer’s Representative (COR). The Contractor shall warrant that work performed under this contract conforms to the contract requirements and is free of any defect in equipment, material, or design furnished, or workmanship performed by the Contractor or any subcontractor or supplier at any tier. The Contractor shall remedy at the Contractor's expense any failure to conform, or any defect. If the Contractor fails to remedy any failure, defect, or damage within a reasonable time after receipt of notice, the Government shall have the right to replace, repair, or otherwise remedy the failure, defect, or damage at the Contractor's expense. Inspection of services including all field logs, correspondence, discussions and other forms of communications with the KO or COR will be in English.

C-2. PURPOSE OF WORK

The purpose of the work is to determine the type, character, thickness, stratification of subsurface soil and rock materials, static groundwater conditions, and geotechnical engineering properties of subsurface materials at the various drilling, testing, and investigation sites. This information will subsequently be used by the Government to determine geotechnical and environmental design requirements for US military projects.

C-3. SITE ACCESS

The project sites are located on or adjacent to developed U.S. military installations with vehicular accessibility. At some locations, however, the Contractor may need to perform hand excavation to construct level pads for the drill operations. The COR will be responsible for securing digging permits for the borings and for obtaining access permits for Contractor personnel and equipment.

Within three (3) calendar days after award of each task order, and prior to site mobilization, the Contractor shall submit to the COR this information: name, address, phone number and ID number for project personnel; and hardcopies of registration, insurance documents, and driver’s license for project vehicles.

C-4. MOBILIZATION AND DEMOBILIZATION

C-4.1. Prior to mobilization, a pre-trip conference with the Contractor equipment operators and Technical Manager will be held to discuss the drilling, testing, and exploration plans, health and safety plans, and all other required services at the Far East District Compound, Building #S-56 (Geotechnical and Environmental Engineering Branch Headquarter Building).

C-4.2. Mobilization. The Contractor shall be required to mobilize to project sites as identified by the KO or COR within five (5) calendar days after task order award. Mobilization shall consist of the following: delivery to the project site of all plant, equipment, materials, supplies, and personnel required for the Work; complete assembly in satisfactory working order of all such plant and equipment; and satisfactory secure storage at the site of all such materials and supplies. The Contractor shall be prepared to mobilize up to four (4) drill rigs maximum per task order. The Contractor shall be responsible for security of all plant, equipment, materials, and supplies at the project site during execution of the Work.

C-4.3 Demobilization. Demobilization shall consist of the following: site clean-up; filling of boreholes with earth or drill cuttings; repair of ground, vegetation, and existing structures damaged during drilling operations; and removal of all plant, equipment, materials, drill cuttings, and trash from the work area. All contaminated soil and groundwater materials recovered during drilling operations shall be properly handled to minimize the spread of contamination and shall be placed in protected and labeled storage containers (e.g. 55-gallon drums) or stockpiles as provided by the KO or COR. The Government will be responsible for disposing of contaminated soil and groundwater materials.

C-4.4 Individual Task Orders. A map of Korea is given in Appendix 1, with three concentric zones of distance radiating from Seoul as follows: 80, 150, and 210 miles (130, 240, and 340 kilometers). Locations of some US military installations (Army, Air Force, Navy, and Marines) are also shown in Figure 1. The cost of mobilization and demobilization will be at the firm-fixed price for the specific zone where work is to be performed (Line ItemsX001AA, X002AA, and X003AA for each contract year). Unless otherwise approved by the COR, the Government shall pay the Contractor for only one mobilization and demobilization per rig, per zone for each task order.

C-4.5 Subcontracting. The Contractor may at his option and with the approval of the Contracting Officer, sub-contract all or any part of the drilling, or other functions described by this contract. It will be the responsibility of the Contractor to see that all applicable parts of the specifications are met for all work performed by a sub-contractor, including any qualifications of personnel, delivery of samples, validation of laboratory test procedures, and on-schedule completion of work.

C-5. SAMPLE CONTAINERS AND BOREHOLE LOG FORMS

The Contractor shall furnish all necessary materials; soil sample bags, sample tags, rock core boxes, and field borehole log forms to complete sample preservation and borehole documentation. The

Contractor shall provide split barrel samplers, thin-walled Shelby tube sampler, double-tube or triple-tube rock core barrels, and other samplers and drilling tools in accordance with the Technical Provisions.

C-6. CARE AND DELIVERY OF SAMPLES

The Contractor shall be solely responsible for preserving all soil and rock samples in good condition. The handling and storage of samples and sampling records shall be in accordance with the procedures specified in EM 1110-1-1906, Soil Sampling, chapter 13 entitled, Handling and Storage of Samples and Sampling Records. Soil and rock core samples shall be delivered in accordance with ASTM D4220 “Preserving and Transporting Soil Samples” and ASTM D5079 “Preserving and Transporting Rock Core Samples” (most recent version). All samples shall be clearly marked and identified by the following information: project number; project location; borehole number; sample depth in meters or feet, as directed; type of sample; date sampled; and name of field inspector. Soil samples shall be preserved and stored immediately upon extraction from the hole as necessary to maintain the natural moisture content of the material to the fullest extent. The Contractor shall keep all descriptive labels and designations on sample bags clean and legible until final delivery of samples to and acceptance by the KO or COR. All soil samples shall be delivered to the FED Materials Testing Laboratory (Bldg S-55), Seoul, unless otherwise directed by the KO or COR. The Contractor shall deliver all soil samples no later than five (5) calendar days after extraction from boreholes. The Contractor shall place rock core specimens within the core boxes, and shall mark said boxes with the following information: project number; borehole number; box sequence number per borehole; total drilling depth per box; depth intervals per core run; drilling dates; and name of field inspector. The Contractor shall store the core boxes in a safe location on site, with protection from disturbance and weather, for transfer to the Government’s on-site project inspector. The Contractor shall deliver all rock core samples to the FED Materials Testing Laboratory (Bldg S-55) when requested by the KO or COR no later than three (3) calendar days after project drilling finishes.

C-7. SUPPLEMENTARY BOREHOLES

Boreholes that are abandoned or from which unsatisfactory samples are being obtained shall be supplemented by other holes adjacent to the original borehole in order that satisfactory samples or the required information will be obtained. No payment will be made for supplementary holes that are required to replace holes abandoned due to improper or inadequate drilling operations or from which unsatisfactory samples were obtained due to mechanical failure of drilling and sampling equipment, negligence on the part of the Contractor, or other preventable cause for which the Contractor is responsible. In the case of partially-accepted boreholes (i.e. accepted from ground surface to a certain depth), payment will be made for supplemental borings only for that portion below the accepted depth of the abandoned hole.

C-8. ENCASED BORINGS

C-8.1 Purpose and General Requirements. The Contractor shall perform exploratory borings for the purpose of determining soil and rock types, composition, thickness, depth, sequence, structure, and engineering properties of the subsurface materials. The equipment and method of boring used shall be compatible with site and subsurface conditions in order to maximize recovery of samples representative of the in-place materials. All borings for this contract shall be advanced by power-driven rotary, hydraulic-feed equipment. These rotary drill rigs shall be mounted on a truck, trailer, crawler base, or skids as appropriate for the project. The rigs shall exert sufficient downward thrust and rpm (rotation per minute) on the drill rods to penetrate and sample strata to the following depths: at least 60 meters in all types of overburden soil; at least 90 meters in all types of rock strata. All borings shall be encased to permit hole advancement through collapsing, caving, and unstable strata, and in high groundwater conditions. Methods used to remove drill cuttings and to clean holes prior to sampling shall have minimal impact on intact soil and rock below and adjacent to the drilled depth.

C-8.2 Rig Types I and II. The Contractor can make available one or two types of power-driven rotary drilling equipment, unless otherwise approved by the KO or COR. Rig Types I and II shall satisfy the general equipment requirements stated in Section C-8.1, and are distinguished as follows. Rig Type I shall provide for borehole advancement using a hollow stem auger with center auger drill head through overburden soils and weathered rock strata. Standard penetration tests, split-barrel sampling, thin-wall tube sampling, and rock core drilling as described in Sections C-9 and C-10 shall be performed down the center of the hollow auger flights, with the auger serving as temporary casing for the hole. Soil augering and hole cleaning with Rig Type I shall be conducted without the addition of water or high pressure air. Rig Type II shall provide for borehole advancement using flush joint casing and a tungsten casing bit. Standard penetration tests, split barrel sampling and rock core drilling shall be performed down the center of the flush joint casing.

Hole cleaning with Rig Type II shall be accomplished using water or high pressure air.

C-9. SPLIT-BARREL SAMPLING, STANDARD PENETRATION TESTING (SPT) AND

THIN-WALL SHELBY TUBE SAMPLING

C-9.1 Definition and Purpose. Samples of soil and decomposed rock shall be recovered from the borings in accordance with ASTM D1586 “Penetration Test and Split-Barrel Sampling of Soils” (most recent version). The purpose of this sampling and testing is to characterize the type and in-place consistency of strata below the project sites. A detailed visual description shall be made of each standard penetration test sample in accordance with ASTM D 2488 “Description and Identification of Soils (Visual-Manual Procedure)” (most recent version) , and the description shall be entered on the boring log.

C-9.2 Method and Equipment. Standard 50-mm (2.0-inch) OD split-barrel samplers per ASTM D 1586 shall be used for this Work. The samplers shall be clean and undamaged, with unworn cutting shoes. The split portion of the barrel shall enable 610 mm (24 in) of material to be retained. A Standard Penetration Test (SPT) drive hammer of 63.5-kg (140-pound) weight shall advance the samplers. All holes shall be clear of drill cuttings and cased to the top of the sampling zone prior to SPT performance. The Contractor shall submit the latest certificate of SPT hammer energy efficiency of each drill rig to the KO or COR within (5) calendar days upon award of task order.

The certificate should remain valid within two (2) calendar years, from the last efficiency measurement testing to the award date of task order.

C-9.3 Sample/Test Interval. A split-barrel sample and SPT shall be taken at the following depth intervals below ground surface, unless otherwise directed by the KO or COR: continuous from 0 to 3 meters; every 0.9 meter from 3 to 6 meters; and every 1.5 meters thereafter to the maximum depth drilled. A split-barrel sample and SPT shall also be taken at every significant change in the type or condition of subsurface material (e.g. transition from sand to clay, and residual soil to bedrock).

C-9.4 Thin-Wall Shelby Tube Sampling. The Contractor shall utilize Shelby tube samplers from the borings in accordance with ASTM D1587 “Thin-Walled Tube Sampling of Soils for Geotechnical Purposes” (most current version). The Government inspector will decide sampling depth from borehole during the progress of drilling. Shelby Tube samples shall be placed in shipping container in accordance with ASTM D4220 “Preserving and Transporting Soil Samples”.

The Contractor shall deliver all Shelby Tube samples to the FED Material Testing Laboratory no later than five (5) calendar days after extraction from boreholes.

C-10. ROCK CORE DRILLING

C-10.1 Equipment and Method. The Contractor shall utilize rock coring equipment and methods in accordance with ASTM D2113 “Rock Core Drilling and Sampling of Rock for Site Investigation” (most recent version). Rock core shall be at least NX-size (54 mm) or bigger diameter, and shall be obtained by rotary drilling techniques using double-tube or triple-tube core barrels and diamond-set rock coring bits as approved by the KO or COR. Tungsten-Carbide type core bits shall be used in certain depths only when the KO or COR approves. The Contractor shall perform drilling to maximize core recovery and to preserve the natural condition and structure of the rock.

C-10.2 Procedure. Overburden shall be drilled and sampled according to Sections C-8 and C-9. At the depth where the boring encounters bedrock, the flush joint casing shall be seated firmly in the rock prior to commencement of rock coring. In coring, the Contractor shall operate the drill with appropriate speed, pressure, and water application to maximize core recovery and to preserve the natural condition and structure of the rock. The Contractor shall make note of water return color;

water losses, cavities, soft drilling zones, rod jerks and other unusual experiences which, supplementing the core record, will aid in determining the nature and extent of fracturing or other rock weakness which may be present. Where soft or broken rock is encountered, the Contractor shall reduce the length of core run to 1.5 meters (5 feet) or less to reduce core loss and minimize core disturbance. Failure to comply with these procedures shall constitute justification for the KO or COR to require re-drilling at the Contractor’s expense of any boring from which core recovery is unsatisfactory.

C-10.3 Rock Core Boxes. The Contractor shall be solely responsible for preserving all rock cores in good condition. Rock core samples shall be stored and delivered in accordance with ASTM D5079 “Preserving and Transporting Rock Core Samples” (most recent version). All cores shall be arranged neatly in the partitioned boxes in proper stratigraphic order and accordingly labeled by core runs. Facing the open box, cores shall be arranged in descending sequence beginning at the top-left end of the partition and continuing through the other partitions from left to right. Core from the top of the boring shall be placed in Box #1, and the lower portions of core shall be placed in additional, consecutively-numbered boxes as required.

C-10.4 Rock Core Logging. The Contractor boring inspector must complete a preliminary field log of the core before it is packed away to be transported. The preliminary log must include all identification data for the borehole and personnel and equipment involved, notations of coring run depths, recovery percentages, Rock Quality Designation (RQD), lithologic contact depths, depths any core losses occurred or assumed, and any facts that would otherwise be unknown to whomever may complete a more detailed log at a later time. The core logging shall be conducted in accordance with the procedures specified in EM 1110-1-1804, Geotechnical Investigations, chapter 5-10 entitled, Subsurface Investigations – Core Logging.

C-11. GROUT IN-FILLING OF BOREHOLES

Section C-4.3 provides for the in-filling of borings with earth or drill cuttings prior to site demobilization. When directed by the task order, the Contractor shall fill completed boreholes with sand-cement grout. The grout shall have a minimum 28-day compressive strength of 500 psi (3.5 MPa) and shall be placed by tremie method to avoid segregation as well as dilution from groundwater in the hole. Unless otherwise specified in the task order, the borehole shall be filled with grout to 2.0 feet (0.6 meter) below ground level. The remaining 2.0 feet (0.6 meter) of hole shall be filled with earth or drill cuttings.

C-12. CONTAMINATED MATERIALS

The Contractor shall immediately cease borehole operations and contact the Government’s on-site project inspector in the event that contaminated soil is encountered during drilling. The Contractor shall use Photoionizaton Detector (PID) to screen potentially contaminated soil samples in boreholes. The Contractor shall record PID reading from all soil samples collected in boring logs.

The Government inspector will be responsible for preserving and transporting a portion of the contaminated soil sample for possible laboratory chemical analysis. The Government inspector will monitor borehole air emissions and will assess worker exposure to contaminants during the progress of drilling. The Contractor shall follow guidance by the on-site Government inspector for the decontamination of soil sampling equipment prior to further borehole advancement. The Contractor will not be required to work in site conditions that require the use of air-purifying or supplied air respirators.

C-13. BOREHOLE LOGGING

The Contractor shall be responsible for the detailed and accurate logging of all subsurface materials encountered during drilling and sampling. Log descriptions shall be based on examination of drill cuttings and recovered samples, and response of the drilling equipment. Borehole logging will be in accordance with ASTM Standards (most recent version); ASTM D653 “Terminology Relating to Soil, Rock, and Contained Fluids”, ASTM D2488 ”Practice for Description and Identification of Soils (Visual-Manual Procedure), ASTM D5434 “Guide for Field Logging of Subsurface Exploration of Soil and Rock”. Soil descriptions shall include the following information: soil type by the Unified Soil Classification System (USCS), color, moisture content, plasticity, organic content, foreign debris content, in situ density, consistency, and origin (e.g. alluvial soil). Rock descriptions shall include the following information: rock type, color, texture, structure, mineralogy, hardness, weathering, and geologic formation. The static groundwater table as stabilized following completion of drilling shall be noted within each borehole log. The presence of contaminated groundwater, soil, or rock as determined by discoloration, odor or other visible means shall be noted in the log descriptions. All logging shall be conducted on site by a geologist or soils engineer with experience in the description of earth materials for geotechnical site investigations. Pertinent drilling information and material descriptions shall be documented on field borehole log forms provided by the KO or COR. The Contractor shall complete all borehole logs in English text only, and in English or metric units as specified in each task order. The Contractor shall deliver three copies of borehole logs and other records to the KO or COR within 24 hours after the completion of fieldwork. The Contractor will provide the KO or COR an electronic file of borehole log data per project in task order. Output files will be in compliance with the geotechnical data interchangeable format. The Contractor shall prepare and submit an electronic file of borehole log data to the KO or COR within 5 calendar days after completion of field work. The COR or his assigned Government

Inspector shall have the right to examine such records of the Contractor at any time and, upon completion of any part of the work. Payment will not be made for any work for which complete records, as required, has not been furnished by the Contractor. The presence of a Government Inspector or the keeping of separate drilling records by the KO or COR shall not relieve the Contractor of the responsibility of all work specified in this paragraph.

C-14. IN-SITU TESTING

C-14.1 Piezo-Cone Penetration Test (CPTu). The Contractor shall perform test using standard piezocone penetrometer to collect information by using sensors that measure cone-tip pressure and friction in accordance with ASTM D5778 “Performing Electronic Friction Cone and Piezocone Penetration Testing of Soils” (most recent version). The Contractor shall provide a manufacturer’s certified calibration for the Piezocone performed not more than 12 months prior to commencement of field testing. Baseline reading shall be taken at each piezocone penetration test location prior to insertion of the probe with the piezocone tip suspended above the ground surface. The cone penetration test data collected from a site is presented in graphical form to the KO or COR. The data includes CPT logs of measured soil parameters, computer calculations of interpreted soil behavior types (SBT), additional geotechnical parameters, and pore pressure dissipation data. The Contractor shall perform pore pressure dissipation test at the directed depths by the KO’s field representative. The expected CPT sounding depth in a hole is down to penetration refusal depth with a range of maximum 40 meters. The thrust machine should be capable of adjusting push direction through the use of a leveling system such that push initiates in a vertical orientation. The machine must advance the penetrometer tip and push rods at a smooth, constant rate while the magnitude of thrust can fluctuate.

The thrust machine must be anchored or ballasted, or both, so that it provides the necessary reaction for the penetrometer and does not move relative to the soil surface during thrust. Cone penetration soundings usually require thrust capabilities ranging from 98 to 196 kN (10 to 20 metric tons).

C-14.2 Field Vane Shear Test (VST). Field vane shear test shall be performed in saturated clay and silt soils for determination of undrained shear strength. This vane shear testing can be combined with sampling such as with thin wall tubes. The Contractor shall perform test in accordance with ASTM D2573 “Field Vane Shear Test in Cohesive Soil” (most recent version). The Government inspector will decide testing depth which each vane test is to be made from borehole during the progress of drilling. The Contractor will provide the KO or COR test data and results.

C-14.3 Pressuremeter Test (PMT). Pressuremeter test shall be performed to estimate the undrained strength and the Over Consolidation Ratio (OCR) of soil. A pressuremeter test is an in situ stress-strain test performed on the wall of a borehole using a cylindrical probe that is expanded radially. To obtain viable test results, disturbance to the borehole wall must be minimized. The Contractor shall perform test in accordance with ASTM D4719 “Prebored Pressuremeter Testing in Soils” (most recent version). The Contractor will provide the KO or COR test data, results including the modulus of deformation (E) with the procedure for drilling the borehole, inserting the probe, and conducting pressuremeter tests in both granular and cohesive soils, but does not include high pressure testing in rock.

The Government inspector will decide testing depth which each pressuremeter test is to be made from borehole during the progress of drilling.

C-15. CAPABILITY OF DRILLING EQUIPMENT

Drilling equipment employed by the Contractor shall be capable of advancing at least 60 meters through alluvial and residual soils of varied type and consistency, to include loose fine sand and dense gravel strata. Once borings are advanced through the overburden, the drilling equipment shall be capable of rock coring at least 90 meters into igneous, sedimentary and metamorphic bedrock. Rock conditions may vary from soft to very hard, shattered to massive, and decomposed to unweathered. The Contractor should anticipate groundwater near the ground surface. The Contractor shall be knowledgeable of typical subsurface conditions for the area, and shall provide equipment and utilize drilling procedures appropriate for the local ground conditions, while meeting minimum equipment requirements given in Section C-8, C-9, and C-10.

C-16. GROUNDWATER RECORDS AND PIEZOMETER INSTALLATION

The Government may decide to install groundwater piezometers in certain borings completed by the Contractor, as subsurface conditions warrant. When the Contractor conducts rotary wash boring for soil sampling and piezometer installation, at least three (3) piezometers will be installed immediately after completion to observe the static ground water table at the project site. The Contractor shall perform piezometer installation by the guidance of the Government on-site inspector, provide clear access to the boreholes for piezometer installation, and shall facilitate the Government operation as needed during removal of auger and other drilling appurtenances. The Contractor shall furnish the material, PVC pipe, screen, cement, and manhole for piezometer installation work. The Contractor shall measure the static groundwater table upon completing the boreholes, using an electronic groundwater recording device. These measurements will require holes to be maintained open for duration of time needed for groundwater to stabilize. Boreholes to remain open shall be protected with a cover or barricade. No separate payment will be made for maintaining the holes in an open condition. All water level readings and related data shall be recorded on the boring logs. The following procedures during progression of drill holes will be used in obtaining accurate groundwater levels; 1) Measure and record depth to water at the beginning, while drilling, and after drilling completed, and 2) Show date, time, and water depth for each reading on the boring logs.

C-17. DISPOSITION OF HOLES AND BORHOLE SITE CLEANUP

Any hole that becomes clogged during drilling operations shall be cleaned out to the satisfaction of the KO or COR. On conclusion of groundwater measurements, the Contractor shall backfill the holes to ground level with drill cuttings, earth materials, and/or cement grout as directed by the KO or COR. Upon completion of the field investigation work, all surplus material, temporary structures and debris on ground and water resulting from the work will be removed and the premises left in a neat, orderly condition. Any improvements disturbed during boring operations will be restored in kind and character existing before the work was started.

C-18. GEOPHYSICAL INVESTIGATION – DOWNHOLE LOGGING

The contractor shall perform geophysical downhole logging to obtain more information about the subsurface than can be obtained from drilling, sampling, and testing. Objectives addressed by geophysical investigation include: identification of geologic features such as bedrock lithology and stratigraphic correlation; detection and characterizing subsurface features like fractures, voids, and etc.;

measuring electrical resistivity of rock and groundwater, identification of contaminant plumes, verification of well construction, the in-situ determination of engineering properties, and groundwater properties. Downhole geophysical logging will be conducted in boreholes drilled by the Contractor or the Government drilling team. Certain downhole logging methods may be used inside the well casing after construction.

C-18.1 Types of Downhole Logging. Geophysical downhole logging methods may include collection and analysis of:

• Optical Televiewer

• Acoustic Televiewer

• Caliper

• Normal Resistivity

• Fluid Temperature/Resistivity

• Spinner Flowmeter

• Heat Pulse Flowmeter

C-18.2 Downhole Logging Work. The Work under this Section C-18 will be authorized by means of task orders specific to the applicable project. The work to be performed will be only as specified in individual task orders, and the Contractor shall be given the type of particular survey and the details of investigation plan in the scope of work in the task order. The Contractor shall assist FED in developing the scope of work for a task order by assessing project geophysical investigation needs, generating alternatives, and/or making recommendations; develop a detailed work plan and schedule of activities showing conformance to the work requirements and time constraints imposed by the task order. The KO or COR will furnish copies of applicable manuals, policies and procedures, forms, standard documentation, or other prints or electronic files of project plans showing information pertinent to the work to the Contractor. The Contractor shall obtain FED’s approval of written work plan prior to commencing work. The Contractor shall verify the site and boreholes are restored to pre-logging operation conditions after completion of downhole logging work.

C-18.3 Method and Equipment. The Contractor shall provide personnel and equipment to conduct detailed geophysical investigations directed in the task order. The Contractor’s team shall consist of competent geologists or geophysicists as specified in Section C.21. The Contractor shall refer to Engineer Manual EM 1110-1-1802 ‘Geophysical Exploration for Engineering and Environmental Investigations’ and following ASTM Standard guidance ASTM D 5753 Planning and Conducting Borehole Geophysical Logging (most recent versions). For accurate results with a given logging system, the Contractor shall maintain the system be calibrated against accepted standards and monitored for any malfunction or significant drift of the system calibration. In addition, the data must be corrected for nonstandard conditions (i.e., conditions other than those encountered in the calibration).