10ST_REVSPECS_AC_072015_without_attachments.pdf

BIDDING DOCUMENTS

Technical Specifications

July 2015

Project:

Final Source Area Remedial Design – Revision 2 10th Street Site, OU2 Columbus, Nebraska

Owner:

U.S. Environmental Protection Agency

Designers/Engineers:

CDM Federal Programs Corporation 9200 Ward Parkway, Suite 500 Kansas City, Missouri 64114

HydroGeoLogic, Inc.

6340 Glenwood, Suite 200 Building #7 Overland Park, Kansas 66202

DM

Source Area Remedial Design, 10th Street Site, Columbus, Nebraska Revision 2 OU2 - Final Remedial Design July 2015

SPECIFICATIONS LIST.docx i

SPECIFICATIONS LIST

PERFORMANCE WORK STATEMENT

The Performance Work Statement is not included with this submittal. The Performance Work Statement consists of contract language specifications. These revised specifications are included in the bid package.

Section No. Section Title Page

DIVISION 01 – GENERAL REQUIREMENTS

01 33 00 Submittal Procedures 01 33 00-1 - 01 33 00-5

DIVISION 02 – SITE WORK

02 41 19 Selective Site Demolition 02 41 19-1 - 02 41 19-7 02 52 20 Chemical Oxidant Application 02 52 20-1 - 02 52 20-8

10ST_SEC_01 33 00.docx 01 33 00-1

SECTION 01 33 00

SUBMITTAL PROCEDURES

PART 1 – GENERAL

1.1 SUBMITTAL IDENTIFICATION

The submittals described herein, and further described in other sections of the Specifications, are those required for acceptance by the Contracting Officer's Representative (COR) and/or the Project Officer (PO).

1.2 SUBMITTAL CLASSIFICATION

Submittals are classified as follows:

1.2.1 Government Approval (GA)

Government approval is required for extensions of design, critical materials, deviations, equipment whose compatibility with the entire system must be checked, and other items as designated by the COR and/or the

PO.

1.2.2 For Information Only (FIO)

All submittals not requiring Government approval will be for information only.

1.3 APPROVED SUBMITTALS

The COR and/or the PO’s approval of submittals shall not be construed as a complete check but will indicate only that the general method of construction, materials, detailing, and other information are satisfactory. Approval shall not relieve the Contractor of the responsibility for any error that may exist, as the Contractor under the Contractor’s Quality Control (CQC) requirements of this contract is responsible for dimensions, the design of adequate connections and details, and the satisfactory construction of all work.

After submittals have been approved by the COR and/or the PO, no resubmittal for the purpose of substituting materials or equipment will be considered unless accompanied by an explanation of why a substitution is necessary.

1.4 DISAPPROVED SUBMITTALS

The Contractor shall make all corrections required by the COR and/or the PO and promptly furnish a corrected submittal in the form and number of copies specified for the initial submittal.

1.5 WITHHOLDING OF PAYMENT

Payment for materials incorporated in the work will not be made if required approvals have not been obtained.

PART 2 – PRODUCTS (NOT USED)

PART 3 – EXECUTION

3.1 GENERAL

3.1.1 The Contractor shall make submittals as required by the Specifications. The COR and/or the PO may request submittals in addition to those specified when deemed necessary to adequately describe the work covered in the respective sections. Units of weights and measures used on all submittals shall be the same used in the Contract Drawings. Each submittal shall be complete and in sufficient detail to allow ready determination of compliance with Contract requirements. Prior to submittal, all items shall be checked and approved by the CQC System Manager, and each item shall be stamped, signed, and dated by the CQC

10ST_SEC_01 33 00.docx 01 33 00-2

System Manager indicating action taken. Proposed deviations from the contract requirements shall be clearly identified. Submittals shall include, but are not limited to, items such as: Contractor’s, manufacturer’s, or fabricator’s drawings; descriptive literature including (but not limited to) catalog cuts, diagrams, calculations, operating charts or curves; test reports; test cylinders; samples; operations and maintenance (O&M) manuals (including parts list); certifications; warranties; and other such required submittals. Submittals requiring Government approval shall be scheduled and received prior to the acquisition of the material or equipment covered thereby. Samples remaining upon completion of the work shall be picked up and disposed of in accordance with manufacturers Material Safety Data Sheets (MSDS) and in compliance with existing laws and regulations.

3.1.2 The submittals shall be promptly made in accordance with the procedures described in the Special Clauses of these Specifications. The submission requirements, review process, and the final distribution of the submittals shall be as specified herein.

3.2 SUBMITTAL REGISTER

At the end of this Section is one set of Submittal Registers listing items of equipment and materials for which submittals are required by the Specifications. This list may not be all-inclusive and additional submittals may be required. The Contractor will also be given the Submittal Register files, containing the computerized Submittal Registers and instructions on the use of the files. These Submittal Register files will be furnished on a separate diskette. Columns “d” through “r” have been completed by the Government. The Contractor shall complete columns “a” and “s” through “u” and submit the forms (hard copy plus associated electronic file) to the COR and/or the PO for approval within 5 calendar days after Notice to Proceed. The Contractor shall keep this diskette up-to-date and shall submit it to the COR and/or the PO together with the monthly payment request. The approved Submittal Register will become the scheduling document and will be used to control submittals throughout the life of the contract. The Submittal Register and the progress schedules shall be coordinated.

3.3 SCHEDULING

3.3.1 Submittals covering component items forming a system or items that are interrelated shall be scheduled to be coordinated and submitted concurrently. Certifications to be submitted with the pertinent drawings shall be scheduled accordingly. Adequate time (a minimum of 30 calendar days exclusive of mailing time) shall be allowed and shown on the register for review and approval. No delays, damages, or time extensions will be allowed for time lost in late submittals.

3.3.2 The COR and/or the PO will review the Submittal Register for approval action.

3.3.3 The approved register will become a part of the contract, and the Contractor shall be subject to the requirements thereof. The Contractor shall revise and/or update the register monthly to take into account all changes in the contract. Each such revised addition and/or revision to the register shall be submitted to the COR and/or the PO for approval. This register and the progress schedules shall be coordinated.

3.4 TRANSMITTAL FORM

The sample transmittal form attached to this Section shall be used for submitting both Government approved and information only submittals. These forms will be furnished to the Contractor. This form shall be properly completed by filling out all the heading blank spaces and identifying each item submitted.

Special care shall be exercised to ensure proper listing of the specification paragraph and/or sheet number of the Contract Drawings pertinent to the data submitted for each item.

10ST_SEC_01 33 00.docx 01 33 00-3

3.5 SUBMITTAL PROCEDURE

Submittals shall be made as follows:

3.5.1 Procedures

The Contractor shall submit 1 hard copy and 1 electronic copy on CD, each with separate transmittal, to the COR and/or the PO in accordance with the Submittal Register. Electronic files shall be in Portable Document Format (PDF) or Microsoft Word format.

3.5.2 Deviations

For submittals that include proposed deviations requested by the Contractor, the column “variation requested” of the transmittal form shall be checked. The Contractor shall set forth in writing the reason for any deviations and annotate such deviations on the submittal. The Government reserves the right to rescind approval of submittals containing unnoted deviations.

3.6 CONTROL OF SUBMITTALS

The Contractor shall carefully control his/her procurement operations to ensure that each individual submittal is made on or before the Contractor scheduled submittal date shown on the approved Submittal Register.

3.7 GOVERNMENT APPROVED SUBMITTALS

Upon completion of review of submittals requiring Government approval, the submittals will be identified as having received approval by being stamped and dated. The COR and/or the PO will retain six copies of the submittal, and four copies of the submittal will be returned to the Contractor.

3.8 FOR INFORMATION ONLY SUBMITTALS

Normally submittals for information only will not be returned. Approval of the COR and/or the PO is not required on information only submittals. The Government reserves the right to require the Contractor to resubmit any item found not to comply with the contract. This shall not relieve the Contractor from the obligation to furnish material conforming to the Contract Documents and will not prevent the COR and/or the PO from requiring removal and replacement of nonconforming material that has been incorporated into the work. This shall not relieve the Contractor of the requirement to furnish samples for testing by the Government laboratory or for check testing by the Government in those instances where the technical Specifications so prescribe.

3.9 RESUBMISSION REQUIREMENTS

3.9.1 Make any corrections or changes in the submittals required by the COR and/or the PO and resubmit until approved.

3.9.2 Revise initial drawings or data and resubmit as specified for the initial submittal.

3.9.3 Indicate any changes that have been made other than those requested by the COR and/or the PO.

3.9.4 Samples: Submit new samples as required for initial submittal.

3.10 STAMPS

Stamps used by the Contractor on the submittal data to certify that the submittal meets contract requirements shall be similar to the following:

10ST_SEC_01 33 00.docx 01 33 00-4

Contractor (Firm Name)

_____Approved

_____Approved as noted on submitted data and/or attached sheets with corrections.

Signature:_________________________________________________________

Title:_____________________________________________________________

Date:_____________________________________________________________

3.11 PROFESSIONAL ENGINEER (P.E.) CERTIFICATION FORM

If specifically required in other sections of these Specifications, the Contractor shall submit a P.E.

Certification for each item required (in the form attached to this Section) completely filled in and stamped.

3.12 SHOP DRAWINGS, SAMPLES, AND PRODUCT DATA

3.12.1 Shop Drawings

3.12.1.1 Shop drawings as specified in individual sections include, but are not necessarily limited to, fabrication and erection/installation drawings, schedule information, and coordination drawings, as applicable to the work.

3.12.1.2 All details on shop drawings shall clearly show elevations of structures and field-verified measurements.

3.12.1.3 All calculations used to develop excavation shoring designs shall be submitted with the detailed shop drawings.

3.12.2 Samples

Samples specified in individual sections include, but are not necessarily limited to, physical examples of the items to be used in the work.

3.12.3 Product Data

Product data specified in individual sections include, but are not necessarily limited to, standard prepared data for manufactured products (sometimes referred to as catalog data), such as the manufacturer’s product specification, installation or use instructions, manufacturer’s statements of compliance and applicability, catalog cuts, product photographs, quality control inspection and test reports, and certifications.

3.13 CONTRACTOR’S RESPONSIBILITIES

3.13.1 The Contractor shall review shop drawings, product data, and samples prior to submission to determine and verify the following:

Field measurements

Field construction criteria

10ST_SEC_01 33 00.docx 01 33 00-5

3.13.2 The review and approval of shop drawings or samples by the COR and/or the PO shall not relieve the Contractor from its responsibility with regard to the fulfillment of the terms of the contract. The Contractor assumes all risks of error and omission, and the COR and/or the PO will have no responsibility thereof.

3.13.3 No portion of the work requiring shop drawings, working drawings, samples, or catalog data shall be started nor shall any materials be fabricated, installed, or used on the sites prior to the approval of the COR and/or the PO. Fabrication performed, materials purchased, or onsite construction accomplished that does not conform to approved shop drawings and data shall be at the Contractor’s risk. The COR and/or the PO will not be liable for any expense for delay due to corrections or remedies required to accomplish conformity.

3.13.4 Project work, materials, fabrication, and installation shall conform to approved shop drawings, working drawings, applicable samples, and catalog data.

END OF SECTION

10ST_SEC_01 33 00.docx

P. E. Certification Form

The undersigned hereby certifies that he/she is a Professional Engineer registered in the State of Nebraska and that he/she has been employed by ____________________________________________(Name of Contractor) to design ___________________________________________________________ (insert P.E.

responsibilities) in accordance with Specification SECTION _____________ for the __ __________________________________________________________________________ (name of project).

The undersigned further certifies that he/she has performed the design of the ___________________________ _________________________________________________________________________________ (name of project), that said design is in conformance with all applicable local, state, and federal codes, rules, and regulations, and that his/her signature and P.E. stamp have been affixed to all calculations and drawings used in and resulting from the design.

The undersigned hereby agrees to make all original design drawings and calculations available to the Contracting Officer's Representative (COR) and/or the Project Officer (PO) or Government representative within 7 days following written request by the COR and/or the PO.

P.E. Name

P.E. Signature

Address

Contractor’s Name

Signature

Title

Address

PROJECT:

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01 35 29-1.3.1 Contractor S&HP Statement 01 35 29-1.3.2 SHO Name and Certification 01 35 29-1.3.3 Training Documentation 01 35 29-1.3.4 Site Safety and Health Plan 01 35 29-1.3.5 Accident/Incident Report

01 35 30-1.3.1 Spill and Discharge Control Plan

01 35 43-1.3.1 Environmental Protection Plan

01 43 00-1.3.1 CQC Plan 01 43 00-1.3.2 Quality Control Daily Report

01 43 00-1.3.3 CQC Organizational Changes

01 43 16-1.3.1 Sampling and Analysis Plan 01 43 16-1.3.2 Chemical Data Final Report

01 43 16-1.3.3 Topsoil and Backfill Materials Testing Results

01 43 16-1.3.4 Data Validation Reports 01 43 16-1.3.5 Chemistry Data Packages

01 55 26-1.3.1 Traffic Control Plan

01 78 39-1.3.1 Record Documents

01 78 40-1.3.1 As-Built Surveys and Drawings

02 21 00-1.3.1 Field Notes, Computations, and Survey Quantities

02 21 00-1.3.2 Survey Elevation/Location Certifications

02 21 00-1.3.3 Survey Crew Qualifications

02 41 19-1.3.1 Proposed Methods and Operations of Demoliton of Structures

02 41 19-1.3.2 Detailed Sequence of Demolition and Removal Work

SUBMITTAL REGISTER CONTRACT NO.

10th Street Site, Source Area Remedial Design, Columbus, Nebraska

TITLE AND LOCATION

CONTRACTOR:

GOVERNMENT ACTIONCONTRACTOR ACTIONTYPE OF SUBMITTAL CLASS CONTRACTOR SCHEDULE DATES

10thFBOD.SUBREG Page 1 of 4

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SUBMITTAL REGISTER CONTRACT NO.

10th Street Site, Source Area Remedial Design, Columbus, Nebraska

TITLE AND LOCATION

CONTRACTOR:

GOVERNMENT ACTIONCONTRACTOR ACTIONTYPE OF SUBMITTAL CLASS CONTRACTOR SCHEDULE DATES

02 41 19-1.3.3 National Emission Standards for Hazardous Air Pollutants (NESHAP) Notification

02 52 20-1.3.1 Chemical Oxidant Information

02 52 20-1.3.2 OHM Source Area Chemical Oxidant Injection Location Map

02 52 20-1.3.3 Chemical Oxidant Application Completion Reports

02 81 00-1.3.1 Offsite Disposal Plan

02 81 00-1.3.2 Pre- and Post-Construction Roadway Video Surveys

02 81 00-1.3.3 Spill Response 02 81 00-1.3.4 Certificates

03 11 00-1.3.1.1 Shop Drawings for Formwork

03 11 00-1.3.1.2 Form Release Agent Product Data

03 11 00-1.3.1.3 Form Ties Product Data

03 11 00-1.3.2 Form Release Agent Demonstration

03 11 00-1.3.3 Certificates

03 15 00-1.3.1.1 Waterstops 03 15 00-1.3.1.2 Premolded Joint Fillers 03 15 00-1.3.1.3 Bond Breaker 03 15 00-1.3.1.4 Expansion Joint Dowels 03 15 00-1.3.1.5 Sealant 03 15 00-1.3.2 Certifications

03 20 00-1.3.1 Reinforcing Steel Shop Drawings

03 20 00-1.3.1.1 Bar Bending Details 03 20 00-1.3.2 Test Reports 03 20 00-1.3.3 Welder's Certification

03 30 00-1.3.1.1 Sources of Cement and Aggregate

03 30 00-1.3.1.2 MSDSs 03 30 00-1.3.1.3 Air-Entraining Admixture

10thFBOD.SUBREG Page 2 of 4

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SUBMITTAL REGISTER CONTRACT NO.

10th Street Site, Source Area Remedial Design, Columbus, Nebraska

TITLE AND LOCATION

CONTRACTOR:

GOVERNMENT ACTIONCONTRACTOR ACTIONTYPE OF SUBMITTAL CLASS CONTRACTOR SCHEDULE DATES

03 30 00-1.3.1.4 Water-Reducing Admixture 03 30 00-1.3.1.5 Concrete Mix 03 30 00-1.3.1.5.1 Standard Deviation Data

03 30 00-1.3.1.5.2 Formula Performance Curves 03 30 00-1.3.1.6 Sheet Curing Material 03 30 00-1.3.1.7 Liquid Curing Compound 03 30 00-1.3.2 Samples 03 30 00-1.3.3 Test Reports 03 30 00-1.3.4 Certifications 03 30 00-1.3.5 Qualifications

03 40 00-1.3.1 Shop Drawings 03 40 00-1.3.2 Design Data 03 40 00-1.3.3 Test Reports 03 40 00-1.3.4 Material Certificates 03 40 00-1.3.6 Compliance Certificates

31 11 00-1.3.1 Permits 31 11 00-1.3.2 Manifests

31 23 19-1.3.1 Dewatering Plan

31 23 23-1.3.1 Earthwork and Backfill Work Plan

31 23 23-1.3.2 Nebraska Department of Roads Application to Occupy Right of Way

31 23 23-1.3.3 Test Reports 31 23 23-1.3.4 Survey

31 25 00-1.3.1 Samples

31 50 00-1.3.1 Shop Drawings for Excavation Support System

31 50 00-1.3.2 Design Calculations for Excavation Support System

31 50 00-1.3.3 Quality Control Measures

31 50 00-1.3.4 Welder's Qualifications and Weld Procedures

31 50 00-1.3.5 Contractor's and Design Engineer's Qualifications

31 50 00-1.3.6 Design Engineer's Documentation

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SUBMITTAL REGISTER CONTRACT NO.

10th Street Site, Source Area Remedial Design, Columbus, Nebraska

TITLE AND LOCATION

CONTRACTOR:

GOVERNMENT ACTIONCONTRACTOR ACTIONTYPE OF SUBMITTAL CLASS CONTRACTOR SCHEDULE DATES

32 01 17-1.3.1

Product Information for Aggregate Materials, Asphaltic Concrete Mix, and Prime and Tack Coats

32 92 19-1.3.1 Material Certificates of Compliance

33 29 00-1.3.1 Well Decommissioning / Abandonment Records

33 29 10-1.3.1 Decontamination Pad Design 33 29 10-1.3.2 Boring Logs 33 29 10-1.3.3 Well Installation Diagrams 33 29 10-1.3.4 Well Development Diagrams 33 29 10-1.3.5 Field Notebooks 33 29 10-1.3.6 Catalog Data

33 29 10-1.3.7 Grain Size Analysis Test Results

33 29 10-1.3.8 Filter Pack Test Results 33 29 10-1.3.9 Qualifications 33 29 10-1.3.10 Drilling Rig Certificates 33 29 10-1.3.11 Permits and Licenses 33 29 10-1.3.12 Well Registration Permits

46 07 13-1.3.1 Water Treatment Plan

10thFBOD.SUBREG Page 4 of 4

10ST_SEC_02 41 19.docx 02 41 19-1

SECTION 02 41 19

SELECTIVE SITE DEMOLITION

1.1 SCOPE OF WORK

1.1.1 Furnish all labor, materials, equipment and incidentals required and demolish, abandon, modify, remove and dispose of work shown on the Contract Drawings and as specified herein.

1.1.2 Demolition and modifications include buildings and underground and overhead utilities at all three source areas and the air sparging/soil vapor extraction (AS/SVE) system at the OHM source area as shown on the Contract Drawings and described herein. The following utilities have utility lines at all three source areas:

1.1.2.1 Black Hills Energy supplies natural gas in Columbus, Nebraska. Natural gas lines in the vicinity of the source areas are buried and primarily run in the alley ways. Black Hills Energy will be responsible for the abandonment of the connection prior to demolition. Black Hills Energy will cut off the line at the main gas line, disconnect the line from the building, and abandon the piping at no cost to the Contractor.

1.1.2.2 Loup Power District supplies electricity is supplied in Columbus, Nebraska. Electrical lines in the vicinity of the source areas are overhead and run in the alleyways. Loup Power will terminate service connections to buildings at no cost to the Contractor.

1.1.2.3 Frontier Communications provide telephone service in Columbus, Nebraska. Frontier Communications will disconnect the line to the building at no cost to the Contractor.

1.1.2.4 City of Columbus utilities include storm sewers, sanitary sewers, and potable water lines. The City of Columbus uses several types of pipe materials used by the city, including concrete, cast iron, plastic, vitrified clay, and asbestos-cement (AC) pipe. Excavation underneath these utilities will require support and maintenance of flow. The Contractor shall maintain flows in sanitary and storm sewers pipelines. Contractor shall be responsible for the abandonment of sanitary sewer and potable water line connections.

1.1.3 Asbestos Containing Material (ACM) and Lead-Based Paint (LBP) surveys have been completed for each structure to be demolished. The reports for the ACM and LBP surveys are attached at the end of this section (Attachment A – Building Inspections).

1.1.4 Blasting and the use of explosives shall not be permitted for any demolition work.

1.1.5 Building permits for demolition of structures are required within the corporate limits of the City of Columbus. Permit fees are not required per CERCLA 121(e) and 40 CFR 300.400(e), however the Contractor must submit the permit and comply with the substantive requirements. The Contractor shall prepare and submit a Building Permit Application to the City of Columbus prior to demolition of any structure. A copy of the application is attached at the end of this section (Attachment B – City of Columbus Building Permit Application).

10ST_SEC_02 41 19.docx 02 41 19-2

1.2 RELATED WORK

1.2.1 Summary of Work is included in SECTION 01 10 00 – SUMMARY OF WORK.

1.2.2 Environmental Protection is included in SECTION 01 35 43 – ENVIRONMENTAL

PROTECTION.

1.2.3 Traffic control is included in SECTION 01 55 26 – TRAFFIC CONTROL.

1.2.4 Excavation and Backfill is included in SECTION 02 61 13 – EXCAVATION AND

HANDLING OF CONTAMINATED MATERIAL.

1.2.5 Transportation of demolition debris is included in SECTION 02 81 00 – TRANSPORTATION

AND DISPOSAL OF CONTAMINATED MATERIAL.

1.2.6 Clearing is included in SECTION 31 11 00 – CLEARING AND GRUBBING.

1.2.7 Well abandonment is included in SECTION 33 29 00 – WELL ABANDONMENT.

1.3 SUBMITTALS

Government approval is required for submittals with a “GA” designation; submittals having an “FIO” designation are for information only. The Contractor shall submit the following in accordance with SECTION 01 33 00 – SUBMITTAL PROCEDURES and the Performance Work Statement.

1.3.1 Proposed methods and operations of demolition of the structures prior to the start of work.

[FIO]

1.3.2 Furnish a detailed sequence of demolition and removal work to ensure the uninterrupted progress of the Owner's operations. Sequence shall be compatible with sequence of construction and shutdown coordination requirements as specified in Performance Work Statement. Include in the schedule the coordination of shutoff, capping and continuation of utility services as required and abatement of material containing asbestos. [FIO]

1.3.3 Whether asbestos is present or not, a National Emission Standards for Hazardous Air Pollutants (NESHAP) notification shall be submitted to Nebraska Department of Environmental Quality (NDEQ) by the contractor 10 working days prior to any demolition. [FIO]

1.4 REFERENCES

1.4.1 The publications listed below form a part of this specification to the extent referenced. The publications are referred in the text by basic designation only.

1.4.2 The Building Code of the City of Columbus shall control the demolition, modification or alteration of the existing buildings or structures.

1.4.3 No building or structure, or any part thereof, shall be demolished until an application has been filed with the Building Inspector. The Contractor must comply with the substantive requirements of the permit.

1.4.4 Where reference is made to one of the above standards, the revision in effect at the time of bid opening shall apply.

10ST_SEC_02 41 19.docx 02 41 19-3

1.5 QUALITY ASSURANCE (NOT USED)

1.6 DELIVERY, STORAGE, AND HANDLING (NOT USED)

1.7 WARRANTY (NOT USED)

1.8 DEFINITIONS (NOT USED)

PART 2 – PRODUCTS (NOT USED)

PART 3 – EXECUTION

3.1 GENERAL

3.1.1 All materials and equipment removed from existing work shall become the property of the Contractor, except for those which EPA has identified and marked. All materials and equipment marked by EPA to remain shall be carefully removed, so as not to be damaged, cleaned and stored on or adjacent to the site in a protected place specified by the Contracting Officer’s Representative (COR) and/or Project Officer (PO).

3.1.2 Dispose of all demolition materials, equipment, debris and all other items not marked by EPA to remain, offsite and in conformance with all existing applicable laws and regulations. NDEQ considers materials painted with lead-based paint construction and demolition (C&D) debris; no additional inspection or testing shall be required by the Contractor.

3.1.3 Pollution Controls

Use water sprinkling, temporary enclosures and other suitable methods to limit the amount of dust and dirt rising and scattering in the air to the lowest practical level. Comply with governing regulations pertaining to environmental protection.

3.1.3.1 Do not use water when it may create hazardous or objectionable conditions such as ice, flooding and pollution.

3.1.3.2 Clean adjacent structures, facilities, and improvements of dust, dirt and debris caused by demolition operations. Return adjacent areas to conditions existing prior to the start of the work.

3.1.4 Building Demolition

3.1.4.1 Unless otherwise approved by COR and/or PO, proceed with demolition from the top of the structure to the ground. Complete demolition work above each floor or tier before disturbing supporting members of lower levels.

3.1.4.2 Demolish concrete and masonry in small sections.

3.1.4.3 Remove structural framing members and lower to ground by means of hoists, derricks, or other suitable methods.

3.1.4.4 Break up and remove foundations and slabs-on-grade, unless otherwise shown to remain.

3.1.4.5 Locate demolition equipment throughout the structure and remove material so as to not impose excessive loads to supporting walls, floors or framing.

10ST_SEC_02 41 19.docx 02 41 19-4

3.2 JOB CONDITIONS

3.2.1 Protection

3.2.1.1 Execute the demolition and removal work to prevent damage or injury to structures, occupants thereof and adjacent features which might result from falling debris or other causes, and so as not to interfere with the use, and free and safe passage to and from adjacent structures.

3.2.1.2 Closing or obstructing of roadways, sidewalks and passageways adjacent to the work by the placement or storage of materials shall be conducted in accordance with the Contractor’s approved Traffic Control Plan.

3.2.1.3 Erect and maintain barriers, lights, sidewalk sheds and other required protective devices.

3.2.2 Scheduling

Carry out operations so as to avoid interference with operations and work in adjacent facilities.

3.2.3 Notification

At least 48 hours prior to commencement of a demolition or removal, notify the COR and/or PO in writing of proposed schedule therefor. Owner shall inspect the existing equipment and to identify and mark those items which are to remain the property of the Owner. No removals shall be started without the permission of the COR and/or PO.

3.2.4 Conditions of Structures

3.2.4.1 The COR and/or PO assume no responsibility for the actual condition of the structures to be demolished or modified.

3.2.4.2 Conditions existing at the time of inspection for bidding purposes shall be maintained by the EPA insofar as practicable. However, variations within a structure may occur prior to the start of demolition work.

3.2.5 Repairs to Damage

Promptly repair damage caused to adjacent facilities by demolition operation when directed by COR and/or PO and at no additional cost to the EPA. Repairs shall be made to a condition at least equal to that which existed prior to construction.

3.2.6 Traffic Access

3.2.6.1 Conduct demolition and modification operations and the removal of equipment and debris to ensure minimum interference with roads, streets, walks both onsite and offsite and to ensure minimum interference with occupied or used facilities.

3.2.6.2 Special attention is directed towards maintaining safe and convenient access to the adjacent commercial and private properties.

3.2.6.3 Do not close or obstruct streets, walks or other occupied or used facilities without permission from the COR and/or PO. Furnish alternate routes around closed or obstructed traffic in access ways.

Traffic control shall be in accordance with the Contractor’s approved Traffic Control Plan and SECTION

01 55 26 – TRAFFIC CONTROL.

10ST_SEC_02 41 19.docx 02 41 19-5

3.3 STRUCTURAL REMOVALS

3.3.1 Remove structures to the lines and grades shown unless otherwise directed by the COR and/or PO. Where no limits are shown, the limits shall be 6 inches outside the item to be demolished. The removal of masonry beyond these limits shall be at the Contractor's expense and these excess removals shall be reconstructed to the satisfaction of the COR and/or PO with no additional compensation to the Contractor.

3.3.2 All concrete, brick, tile, concrete block, roofing materials, reinforcement, structural or miscellaneous metals, plaster, wire mesh and other items contained in or upon the structure shall be removed and taken from the site, unless otherwise approved by the COR and/or PO. Demolished items shall not be used in backfill adjacent to structures or in pipeline trenches.

3.3.3 After removal of parts or all of masonry walls, slabs and like work which tie into new work or existing work, the point of junction shall be neatly repaired so as to leave only finished edges and surface exposed.

3.4 MECHANICAL REMOVALS

3.4.1 Mechanical removals shall consist of dismantling and removing of existing piping, pumps, motors, equipment and other appurtenances as specified, shown, or required for the completion of the work. It shall include cutting, capping, and plugging as required.

3.4.2 When underground piping is to be removed, the remaining piping shall be properly capped.

Underground utilities shall be disconnected and abandoned in accordance with the utility owner requirements.

3.4.3 EPA will be re-locating existing tenants from the source area buildings as part of the project acquisition/relocation process. Equipment belonging to the existing tenants will be relocated by others.

3.4.4 EPA’s AS/SVE treatment building and equipment located adjacent to Prestige Cleaners is government property. ARTICLE XXX – PROPERTY of the July 2, 2013, Second Amendment to the Superfund State Contract between EPA and NDEQ governs disposition of the property which must be in accordance with 40 CFR. § 35.6815(b). The requirement is that the State agrees to accept title to any fixed in-place equipment and any equipment that is an integral part of services to individuals, once EPA provides notice that it no longer has an interest. The EPA has had discussions with the NDEQ who has stated that they will inventory and provide instructions to the Contractor regarding disposition of the equipment in the AS/SVE building. Equipment identified by NDEQ for salvage in Table 02 41 19-01 is to be transported to NDEQ’s Van Dorn facility in Lincoln, Nebraska for storage. Dismantling and disposition of this equipment will be the responsibility of the Contractor.

10ST_SEC_02 41 19.docx 02 41 19-6

TABLE 02 41 19-01

AS/SVE EQUIPMENT TO BE SALVAGED FOR NDEQ FUTURE USE

Equipment List Quantity Additional Equipment Information

Low Vacuum Blowers 2 Rotron DR 909 Heat Exchanger 1 Xchanger #AA-1750

High Vacuum Blower 1 Roots #616 RAM Vapor/Liquid Separators 2 Tetrasolv custom fabrication

Level Limit Switches 6 Endress+Hauser Liquiphant T FTL 260

Liquid Transfer Pumps 2 Moyno 500 Pumps, 300 series motorized Liquid Phase Granular Activated Carbon Vessels 2 Tetrasolv HPP-200

Air Pressure Vessel 1 Red in color

Plastic Water Tank 1 White horizontal tank

Siemens Transformers 2 White in color under control panels

3.5 ELECTRICAL REMOVALS

3.5.1 Electrical removals shall consist of the removal of existing transformers, distribution switchboards, control panels, motors, conduits and wires, poles and overhead wiring, panelboards, lighting fixtures and miscellaneous electrical equipment all as shown on the Contract Drawings, specified herein, or required to perform the work.

3.5.2 All existing electrical equipment and fixtures shall be removed.

3.5.3 Conduits and wires shall be removed. All wires in abandoned conduits shall be removed, salvaged and stored. Abandoned conduits concealed in floor or ceiling slabs or in walls, shall be cut flush with the slab or wall at the point of entrance. Exposed conduits and their supports shall be disassembled and removed from the site.

3.5.4 Wiring in the underground duct system shall be removed.

3.5.5 Direct-burial cable shall be abandoned. Such cable shall be disconnected at both ends of the run. Where it enters a building or structure the cable shall be cut back to the point of entrance.

3.5.6 Poles and overhead wiring shall be abandoned as shown and specified. Existing substation and poles owned by the power company shall be removed by the power company. Perform this work after the service has been de-energized.

3.5.7 Lighting fixtures not relocated shall be removed from the site.

3.5.8 Wall switches, receptacles, starters and other miscellaneous electrical equipment, shall be removed and disposed of off the site as required.

10ST_SEC_02 41 19.docx 02 41 19-7

3.6 REMOVAL AND ABANDONMENT OF UTILITIES

3.6.1 Natural Gas

Black Hills Energy will cut off the line at the main gas line, disconnect the line from the building and abandon the piping at no cost to the Contractor.

3.6.2 Electrical

Loup Power will terminate service connections to buildings. The contractor shall strip out the lines connecting to the building at no cost to the Contractor.

3.6.3 Telephone

Frontier Communications will disconnect the line to the building at no cost to the Contractor.

3.6.4 Sanitary Sewer and Water Service Lines

3.6.4.1 Sanitary sewer service connections shall be cut off at the main line and capped.

3.6.4.2 Water service lines shall be cut off at the corporation stop near the water main.

3.7 DISPOSAL OF MATERIAL

3.7.1 Salvageable material and equipment listed hereinafter shall become the property of the Contractor. Dismantle all such items to a size that can be readily handled and deliver them to a designated storage area.

3.7.2 The Contractor shall dismantle equipment that is to be salvaged per NDEQ instructions and transport the equipment to the NDEQ’s Van Dorn facility in Lincoln, Nebraska for storage. Any equipment identified for salvage by NDEQ damaged due to improper handling shall not be accepted and the replacement value of the material shall be deducted from the payment to the Contractor. All other material and equipment shall become the Contractor's responsibility and must be removed from the site for disposal or recycling.

3.8 CLEAN-UP

Remove from the site all debris resulting from the demolition operations as it accumulates. Upon completion of the work, all materials, equipment, waste and debris of every sort shall be removed and premises shall be left, clean, neat and orderly.

10ST_SEC_02 52 20.docx 02 52 20-1

SECTION 02 52 20

CHEMICAL OXIDANT APPLICATION

1.1 SCOPE OF WORK

Furnish all labor, materials, equipment and other facilities and incidentals required to apply chemical oxidant to the subsurface by the methods specified herein.

1.1.1 Apply chemical in the bottom of excavations prior to backfill or by direct-push technology (DPT) as specified on the Contract Drawings and herein. DPT injection locations are subject to change and additional injections may be performed at the discretion of the EPA based on results from the post-injection sampling events.

1.1.2 **DELETED**

1.1.3 **DELETED**

1.1.4 Construct a chemical oxidant injection system that is capable of delivering chemical oxidant to a minimum of four injection points concurrently. The injection system shall include, at a minimum:

pump(s), mixing tank(s), motorized mechanical mixer(s), flow meters, pressure gauges, control valves, and interconnecting piping and hoses.

1.1.5 Acquire all necessary approvals, registrations, and keep appropriate records of all injection activities. The Contractor shall supply these records upon request to the Contracting Officer’s Representative (COR) and/or the Project Officer (PO).

1.2 RELATED WORK

1.2.1 Spill control is specified in SECTION 01 35 30 – SPILL CONTROL.

1.2.2 Groundwater monitoring requirements are specified in SECTION 01 43 16 – CHEMICAL

DATA QUALITY CONTROL.

1.2.3 Traffic control is specified in SECTION 01 55 26 – TRAFFIC CONTROL.

1.2.4 Backfill and compaction is specified in SECTION 31 23 23 – EARTHWORK.

1.3 SUBMITTALS

Government approval is required for submittals with a “GA” designation; submittals having an “FIO” designation are for information only. The Contractor shall submit the following items in accordance with SECTION 01 33 00 – SUBMITTAL PROCEDURES and the Performance Work Statement.

10ST_SEC_02 52 20.docx 02 52 20-2

1.3.1 Chemical Oxidant Information [FIO]

The Contractor shall submit applicable chemical oxidant manufacturer’s information to the COR and/or PO prior to use.

1.3.2 Revised OHM Source Area Chemical Oxidant Injection Location Map [GA] The Contractor shall submit a revised chemical oxidant injection location map, if necessary, for the OHM source area based on groundwater monitoring results.

1.3.3 Chemical Oxidant Application Completion Reports [FIO]

The Contractor shall prepare a chemical injection completion report after completing each chemical application. The chemical injection completion reports shall include a discussion of the equipment used, number of injection points completed, figure(s) showing actual surveyed injection locations, amount of chemical and gallons of solution of injected at each point, injection flow rates, injection pressures, and any design or contract deviations and an explanation for each design or contract deviation.

1.4 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to in the text by basic designation only. Where reference is made to one of the below standards, the revision in effect at the time of bid opening shall apply.

CODE OF FEDERAL REGULATIONS (CFR)

29 CFR 1910 Occupational Safety and Health Standards

NEBRASKA ADMINISTRATIVE CODE (NAC)

NAC Title 122 Nebraska Department of Environmental Quality - Rules and Regulations for

Underground Injection and Mineral Production Wells

NAC Title 178 Regulations Governing Water Well Construction, Pump Installation, and Water

Well Decommissioning Standards

1.5 QUALITY ASSURANCE (NOT USED)

1.6 DELIVERY, STORAGE, AND HANDLING (NOT USED)

1.7 WARRANTY (NOT USED)

1.8 DEFINITIONS (NOT USED)

PART 2 – PRODUCTS

2.1 WATER SUPPLY

2.1.1 Any water used in producing the chemical oxidant solution and decontamination of DPT equipment and injection equipment shall be potable water obtained from the City of Columbus municipal water distribution system. Transport and storage of all water shall be the responsibility of the Contractor.

A water sample shall be obtained from the container used to transport the water before the water is used for decontamination purposes. This sample shall be analyzed in accordance with the Contractor’s approved Sampling and Analysis Plan.

10ST_SEC_02 52 20.docx 02 52 20-3

2.1.2 A flow meter and backflow preventer shall be used to record water use and prevent inadvertent addition of foreign material to the city potable water supply.

2.2 CHEMICAL OXIDANT

2.2.1 The chemical oxidant to be used shall be potassium permanganate (KMnO4) (Carus Chemical RemOx® S), sodium permanganate (NaMnO4) (Carus Chemical RemOx® L), or an approved equivalent product.

2.3 EQUIPMENT

2.3.1 The Contractor shall use an injection probe for DPT injections. The injection probe shall allow horizontal injection of the chemical oxidant solution through injection ports. The injection probe shall incorporate an integral back-flow preventer. The injection probe shall not use an expendable tip. The injection probe shall attach to standard drive rods. The Contractor shall be responsible for acquiring the injection probe assembly from Geoprobe Systems, Inc., or an equivalent tool from another manufacturer.

2.3.2 The components (e.g., pumps, valves, fittings, flow meters, piping, hoses, pressure relief valves, pressure gauges, tanks, motorized mechanical mixers, etc.) of the system shall be constructed with materials compatible with the chemical oxidant.

2.3.3 Each delivery line shall have a separate flow meter and pressure gauge so that each injection point can be monitored.

2.3.4 Power to operate the injection system shall be supplied by a generator.

2.4 CHEMICAL OXIDANT NEUTRALIZATION SOLUTION

2.4.1 The Contractor shall provide a neutralization solution for use during all chemical mixing and chemical injection activities. The neutralization solution shall be prepared in accordance with the manufacturer’s recommendations for the chemical oxidant being used. This solution shall be used to neutralize chemical oxidant spills. Previous site activities have used a permanganate neutralization solution consisting of 1 part water, 1 part hydrogen peroxide (H2O2), and 1 part acetic acid (vinegar).

PART 3 – EXECUTION

3.1 GENERAL

3.1.1 Field personnel shall take precautions while working with the chemical oxidant by working upwind of the product and wearing the appropriate personal protective equipment (PPE). Material Safety Data Sheets for the chemical oxidant shall be kept at the Contractor’s field office for reference. Personnel operating field equipment used during the application process shall have the appropriate training, supervision, and experience.

3.1.2 Measure water level elevations in all monitoring wells, as appropriate to establish the baseline condition prior to injection.

3.1.3 Upon completion of the system set-up, the system shall be tested for leaks and the instrumentation checked prior to beginning the injection. The Contractor shall be responsible for maintaining all injection equipment.

10ST_SEC_02 52 20.docx 02 52 20-4

3.1.4 Provide instrumentation to monitor and measure pressure and flow rates at each injection point.

Record totalizer readings from all mechanical flow meters and pressure gauges at 5 minute intervals. Note which meters connect to which injection points, and put temporary labels at all meters that correspond to the injection point identifiers.

3.1.5 Use a motorized mechanical mixer to continuously mix the chemical oxidant solution during preparation and application.

3.1.6 All connections shall be leak tight and the minimum number of connections shall be used.

Perform inspections of all above ground piping associated with the injection system twice daily at a minimum. Inspections shall be performed to ensure that the system is functioning correctly and there are no visible leaks. If a problem is found (e.g., hose leak, etc.), the Contractor shall make repairs as soon as possible. The Contractor shall have a ready supply of fittings on site to reduce down time during repairs.

3.1.7 Prevent spillage or leakage of chemicals by using appropriate operational practices. In the event of a leak, the Contractor shall implement the spill control and countermeasures in accordance with the approved Spill Prevention and Control Plan and SECTION 01 35 30 – SPILL CONTROL.

3.1.8 Contractor may inject clean water after the required volume of solution has been delivered to clear the injection lines and enhance dispersion from the injection line or injection point, if necessary. The Contractor shall note volume of clean water injected.

3.1.9 Measures for the protection and diversion of traffic shall be in accordance with the approved Traffic Control Plan and SECTION 01 55 26 – TRAFFIC CONTROL.

3.2 DECONTAMINATION

3.2.1 Construct a decontamination pad at the site where the injection rods, tools, piping, and other associated equipment shall be cleaned with high-pressure hot water/steam prior to injection activities commencing. The pad shall be approved by the COR and/or the PO. The pad shall be lined with polyethylene sheeting and have sides and a bottom to contain generated wash water. All sides of the pad shall be bermed to prevent water from running off the pad. The pad shall also contain a sump to allow the water to pool so it can be pumped out of the containment structure into a polyethylene storage tank.

3.2.2 All downhole injection equipment shall be decontaminated before use. All DPT equipment and materials including probe rods, accessory tools, casings, and injection tools shall be steam-cleaned and void of any external oils or greases prior to use. All contact equipment including pumps, hoses, and extension rods shall be steam cleaned before each use. All equipment shall be cleaned to the satisfaction of the COR and/or the PO prior to use. The Contractor shall containerize all fluids.

3.2.3 All downhole injection equipment shall be either steam-cleaned (large equipment) or cleaned with Alconox or Liquinox detergent using the following decontamination procedures (smaller sampling equipment):

Wash and scrub with detergent (i.e., Alconox or Liquinox) Tap water rinse Demonstrated analyte-free water rinse Air dry Wrap in clean aluminum foil for transport

10ST_SEC_02 52 20.docx 02 52 20-5

3.2.4 Clean the equipment after the last injection. The water used for cleaning shall be in accordance with Paragraph 2.1 herein.

3.2.5 Pump, or transfer by other means, water from the decontamination pad into the tank. The Contractor shall be responsible for removing the decontamination pad and properly disposing of associated materials upon conclusion of chemical oxidant injection activities.

3.3 CHEMICAL OXIDANT APPLICATION IN OPEN EXCAVATION

3.3.1 Mix the chemical oxidant to the volume and percentage solution Table 02 52 20-1. Continue mixing the solution with the mechanical mixer until the solution can be applied to the bottom of the excavation. Volume of application may require mixing more than one batch to meet the requirements of Table 02 52 20-1 or Table 02 52 20-2.

TABLE 02 52 20-1

KMnO4 CHEMICAL OXIDANT CONCENTRATIONS AND VOLUMES FOR EXCAVATION

BACKFILL

Injection Location

Mass KMnO4 (pounds)

Volume Solution (gallons)

Percent Solution

OHM Source Area 2,411 7,200 4

Former Jackson Services Source Area 6,531 19,500 4

Liberty Cleaners Area 234 700 4

TABLE 02 52 20-2

NaMnO4 CHEMICAL OXIDANT CONCENTRATIONS AND VOLUMES FOR EXCAVATION

BACKFILL

Injection Location

Mass NaMnO4 (pounds)

Volume 40%

NaMnO4 (gallons)

Volume Solution (gallons)

Percent Solution

OHM Source Area 2,495 546 7,200 4

Former Jackson Services Source Area 6,757 1,480 19,500 4

Liberty Cleaners Area 243 53 700 4

3.3.2 When excavation has been completed in accordance with SECTION 02 61 13 – EXCAVATION AND HANDLING OF CONTAMINATED MATERIAL and at the direction of the COR and/or the PO, the Contractor shall apply the entire volume of chemical oxidant solution to the excavation bottom. The chemical oxidant solution shall be applied in an even manner that minimizes splashing onto excavation sidewalls and exposed underground utilities. Mix the chemical oxidant solution into the subsurface with the excavator bucket to a maximum depth of 3 feet below the bottom of excavation.

10ST_SEC_02 52 20.docx 02 52 20-6

3.4 CHEMICAL OXIDANT…