Attachment_2_Vol_2_Specifications.pdf

CHESAPEAKE AND OHIO CANAL

Georgetown, Washington, D.C.

REHABILITATE LIFT LOCK #3

CHOH

PMIS NO. 150696

VOLUME 2 OF 3

PROJECT SPECIFICATIONS

Construction Documents

NATIONAL PARK SERVICE

DENVER SERVICE CENTER

June 20, 2016

REHABILITATE LIFT LOCK #3 AND 4

CHOH-150696/150699 TOC-1

TABLE OF CONTENTS

VOLUME 1 OF 3 – REHABILITATE LIFT LOCK #3 AND #4

DIVISION 01 - GENERAL REQUIREMENTS

01 11 00 Summary of Work ................................................................ 01 11 00-1 to 01 11 00-4

01 26 01 Contract Modification Procedures ........................................ 01 26 01-1 to 01 26 01-6

01 27 00 Definition of Contract Line Items ........................................ 01 27 00-1 to 01 27 00-6

01 31 00 Project Management & Coordination................................. 01 31 00-1 to 01 31 00-10

01 32 16 Construction Schedule .......................................................... 01 32 16-1 to 01 32 16-9

01 32 33 Photo Documentation for Historic Preservation Projects .... 01 32 33-1 to 01 32 33-2

01 33 23 Submittal Procedures ............................................................ 01 33 23-1 to 01 33 23-8

01 35 13.22 Archeological Protection ............................................01 35 13.22-1 to 01 35 13.22-3

01 35 23 Safety Requirements ............................................................. 01 35 23-1 to 01 35 23-3

01 35 91 Historic Preservation Treatment Procedures ........................ 01 35 91-1 to 01 35 91-7

01 40 00 Quality Requirements ........................................................... 01 40 00-1 to 01 40 00-8

01 42 00 References ........................................................................... 01 42 00-1 to 01 42 00-19

01 50 00 Temporary Facilities and Controls ....................................... 01 50 00-1 to 01 50 00-6

01 57 19.12 Noise & Acoustic Management..................................01 57 19.12-1 to 01 57 19.12-2

01 57 23 Temporary Storm Water Pollution Prevention .................... 01 57 23-1 to 01 57 23-7

01 67 00 Product Requirements ........................................................... 01 67 00-1 to 01 67 00-9

01 73 29 Cutting and Patching ............................................................. 01 73 29-1 to 01 73 29-3

01 73 40 Execution ............................................................................... 01 73 40-1 to 01 73 40-6

01 74 19 Construction Waste Management and Disposal .................. 01 74 19-1 to 01 74 19-7

01 77 00 Closeout Procedures.............................................................. 01 77 00-1 to 01 77 00-4

Geotechnical Engineering Report - C&O Canal Lock #3 Renovations

Soils Management Plan

Work Plan

Sediment and Canal Surface Water Sampling Results Letter

VOLUME 2 OF 3 – CHOH 150696 - REHABILITATE LIFT LOCK #3

DIVISION 02 - EXISTING CONDITIONS

02 41 19 Selective Structure Demolition ............................................. 02 41 19-1 to 02 41 19-6

02 61 50 Management and Disposal of Excavated Non-Hazardous

Contaminated Soil and Wastewater ..................................... 02 61 50-1 to 02 61 50-9

DIVISION 03 – CONCRETE

03 30 00 Cast-in-Place Concrete ....................................................... 03 30 00-1 to 03 30 00-14

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DIVISION 04 – MASONRY

04 03 05 Repointing of Existing Stone Masonry ................................ 04 03 05-1 to 04 03 05-3

04 03 07 Stone Masonry ...................................................................... 04 03 07-1 to 04 03 07-8

04 10 00 Mortar .................................................................................... 04 10 00-1 to 04 10 00-3

DIVISION 6 – WOOD, PLASTICS AND COMPOSITES

06 10 63 Exterior Rough Carpentry ..................................................... 06 10 63-1 to 06 10 63-3

06 19 00 Timber Miter Gates ............................................................... 06 19 00-1 to 06 19 00-4

DIVISION 9 – FINISHES

09 96 00 Painting .................................................................................. 09 96 00-1 to 09 96 00-7

DIVISION 31 - EARTHWORK

31 00 00 Earthwork and Grading ....................................................... 31 00 00-1 to 31 00 00-15

31 10 00 Site Clearing .......................................................................... 31 10 00-1 to 31 10 00-4

31 23 19 Dewatering ............................................................................ 31 23 19-1 to 31 23 19-3

31 23 23 Excavatable Flowable Fill .................................................... 31 23 23-1 to 31 23 23-5

31 50 00 Excavation Bracing ............................................................... 31 50 00-1 to 31 50 00-5

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 14 00 Unit Paving ............................................................................ 32 14 00-1 to 31 14 00-3

32 91 13 Soil Preparation .................................................................... 32 91 13-1 to 32 91 13-3

32 92 00 Turf and Grasses ................................................................... 32 92 00-1 to 32 92 00-8

32 93 00 Planting ................................................................................ 32 93 00-1 to 32 93 00-10

DIVISION 33 - UTILITIES

33 11 00 Water Distribution Systems .................................................. 33 11 00-1 to 33 11 00-6

33 45 00 Subsurface Drainage System ................................................ 33 45 00-1 to 33 45 00-4

VOLUME 3 OF 3 - CHOH 150699 - REHABILITATE LIFT LOCK #4

DIVISION 02 - EXISTING CONDITIONS

02 41 19 Selective Structure Demolition ............................................. 02 41 19-1 to 02 41 19-6

DIVISION 03 – CONCRETE

03 30 00 Cast-in-Place Concrete ....................................................... 03 30 00-1 to 03 30 00-14

DIVISION 04 – MASONRY

04 03 05 Repointing of Existing Stone Masonry ................................ 04 03 05-1 to 04 03 05-3

04 03 07 Stone Masonry ...................................................................... 04 03 07-1 to 04 03 07-8

04 10 00 Mortar .................................................................................... 04 10 00-1 to 04 10 00-3

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DIVISION 6 – WOOD, PLASTICS AND COMPOSITES

06 19 00 Timber Miter Gates ............................................................... 06 19 00-1 to 06 19 00-4

DIVISION 9 – FINISHES

09 96 00 Painting .................................................................................. 09 96 00-1 to 09 96 00-7

DIVISION 31 - EARTHWORK

31 20 10 Erosion and Sediment Control ............................................. 31 20 10-1 to 31 20 10-5

31 23 23 Excavatable Flowable Fill .................................................... 31 23 23-1 to 31 23 23-5

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SELECTIVE STRUCTURE DEMOLITION

SECTION 024119 - SELECTIVE STRUCTURE DEMOLITION

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and other Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. This Section includes the following:

1. Demolition and removal of selected site elements.

2. Salvage of existing items to be reused or recycled.

3. See Section 040307 for removal and salvage of stone masonry.

4. See Section 061900 for removal and salvage of timber miter gates and sills.

B. Related Sections include the following:

1. Division 01 Section "Summary of Work" for use of premises, and phasing, and Owner-occupancy requirements.

2. Division 01 Section "Temporary Facilities and Controls" for temporary construction and environmental-protection measures for selective demolition operations.

3. Division 31 Section "Site Clearing" for site clearing and removal of above- and below-grade improvements.

4. Division 04 Section 040307 “Stone Masonry” for Disassembly of Lock Stone Walls

5. Division 04 Section 040307 “Stone Masonry” for Removal of the Timber

Foundation.

6. Division 06 Section 061900 “Timber Miter Gates” for Removal of Existing Timber

Miter Gates

7. Division 31 Section 315000 “Excavation Bracing” for monitoring of existing structures during demolition.

1.3 DEFINITIONS

A. Remove: Detach items from existing construction and legally dispose of them off-site, unless indicated to be removed and salvaged or removed and reinstalled.

B. Remove and Salvage: Detach items from existing construction and deliver them to Owner ready for reuse.

C. Remove and Reinstall: Detach items from existing construction, prepare them for reuse, and reinstall them where indicated.

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D. Existing to Remain: Existing items of construction that are not to be removed and that are not otherwise indicated to be removed, removed and salvaged, or removed and reinstalled.

1.4 MATERIALS OWNERSHIP

A. Historic items, relics, and similar objects including, but not limited to, cornerstones and their contents, commemorative plaques and tablets, parking signs, parking lights, antiques, and other items of interest or value to Owner that may be encountered during selective demolition remain Owner's property. Carefully remove and salvage each item or object in a manner to prevent damage and store until ready for reinstallation. Items not being reinstalled shall be turned over immediately to Owner.

1. Coordinate with CO, who will establish special procedures for removal and salvage.

2. Refer to SECTION 061900 TIMBER MITER GATES.

1.5 SUBMITTALS

A. Qualification Data: For professional engineer.

B. Schedule of Selective Demolition Activities: Indicate the following:

1. Detailed sequence of selective demolition and removal work, with starting and ending dates for each activity. Ensure Owner's adjacent construction and on-site operations are uninterrupted.

2. Interruption of utility services. Indicate how long utility services will be interrupted.

3. Coordination for shutoff, capping, and continuation of utility services.

4. Locations of proposed dust- and noise-control temporary partitions and means of egress, including access affected by selective demolition operations.

5. Coordination of Owner's continuing occupancy of portions of existing building and of

Owner's partial occupancy of completed Work.

6. Means of protection for items to remain and items in path of waste removal from site.

C. Inventory: After selective demolition is complete, submit a list of items that have been removed and salvaged.

D. Landfill Records: Indicate receipt and acceptance of hazardous wastes by a landfill facility licensed to accept hazardous wastes.

1.6 QUALITY ASSURANCE

A. Demolition Firm Qualifications: An experienced firm that has specialized in demolition work similar in material and extent to that indicated for this Project.

B. Regulatory Requirements: Comply with governing EPA notification regulations before beginning selective demolition. Comply with hauling and disposal regulations of authorities having jurisdiction.

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C. Standards: Comply with ANSI A10.6 and NFPA 241.

D. Predemolition Conference: Conduct conference at Project site to comply with requirements in Division 01 Section "Project Management and Coordination." Review methods and procedures related to selective demolition including, but not limited to, the following:

1. Inspect and discuss condition of construction to be selectively demolished.

2. Review and finalize selective demolition schedule and verify availability of materials, demolition personnel, equipment, and facilities needed to make progress and avoid delays.

3. Review requirements of work performed by other trades that rely on substrates exposed by selective demolition operations.

4. Review areas where existing construction is to remain and requires protection.

1.7 PROJECT CONDITIONS

A. Owner will occupy portions of building immediately adjacent to selective demolition area.

Conduct selective demolition so Owner's operations will not be disrupted.

1. Comply with requirements specified in Division 01 Section "Summary."

B. Conditions existing at time of inspection for bidding purpose will be maintained by Owner as far as practical.

C. Notify Engineer of discrepancies between existing conditions and Drawings before proceeding with selective demolition.

D. Hazardous Materials: It is not expected that hazardous materials, other than contaminated soils indicated, will be encountered in the Work.

1. If other materials suspected of containing hazardous materials are encountered, do not disturb; immediately notify Engineer and Owner. Owner will remove hazardous materials under a separate contract.

2. Refer to Section 02 61 50 –Management and Disposal of Excavated Non-Hazardous Contaminated Soil and Wastewater.

E. Storage or sale of removed items or materials on-site is not permitted.

F. Utility Service: Maintain existing utilities indicated to remain in service and protect them against damage during selective demolition operations.

1.8 WARRANTY

A. Existing Warranties: Remove, replace, patch, and repair materials and surfaces cut or damaged during selective demolition, by methods and with materials so as not to void existing warranties.

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PART 2 - PRODUCTS (Not Used)

PART 3 - EXECUTION

3.1 EXAMINATION

A. Verify that utilities have been disconnected and capped.

B. Survey existing conditions and correlate with requirements indicated to determine extent of selective demolition required.

C. Inventory and record the condition of items to be removed and reinstalled and items to be removed and salvaged.

D. When unanticipated mechanical, electrical, or structural elements that conflict with intended function or design are encountered, investigate and measure the nature and extent of conflict. Promptly submit a written report to Engineer.

E. Perform surveys as the Work progresses to detect hazards resulting from selective demolition activities.

3.2 UTILITY SERVICES AND MECHANICAL/ELECTRICAL SYSTEMS

A. Existing Services/Systems: Maintain services/systems indicated to remain and protect them against damage during selective demolition operations.

1. Comply with requirements for existing services/systems interruptions specified in Division 01 Section "Summary."

B. Service/System Requirements: Locate, identify, disconnect, and seal or cap off indicated utility services and mechanical/electrical systems serving areas to be selectively demolished.

1. Arrange to shut off indicated utilities with utility companies.

2. If services/systems are required to be removed, relocated, or abandoned, before proceeding with selective demolition provide temporary services/systems that bypass area of selective demolition and that maintain continuity of services/systems to other parts of building.

3.3 PREPARATION

A. Site Access and Temporary Controls: Conduct selective demolition and debris-removal operations to ensure minimum interference with roads, streets, walks, walkways, and other adjacent occupied and used facilities.

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1. Comply with requirements for access and protection specified in Division 01 Section "Temporary Facilities and Controls."

3.4 SELECTIVE DEMOLITION, GENERAL

A. General: Demolish and remove existing construction only to the extent required by new construction and as indicated. Use methods required to complete the Work within limitations of governing regulations and as follows:

1. Proceed with selective demolition systematically, by phasing plans.

2. Neatly cut openings and holes plumb, square, and true to dimensions required. Use cutting methods least likely to damage construction to remain or adjoining construction. Use hand tools or small power tools designed for sawing or grinding, not hammering and chopping, to minimize disturbance of adjacent surfaces.

Temporarily cover openings to remain.

3. Remove decayed, vermin-infested, or otherwise dangerous or unsuitable materials and promptly dispose of off-site.

4. Dispose of demolished items and materials promptly.

B. Removed and Salvaged Items:

1. Clean salvaged items.

2. Pack or crate items after cleaning. Identify contents of containers.

3. Store items in a secure area until delivery to Owner.

4. Transport items to Owner's storage area on-site designated by Owner.

5. Protect items from damage during transport and storage.

C. Removed and Reinstalled Items:

1. Clean and repair items to functional condition adequate for intended reuse. Paint equipment to match new equipment.

2. Pack or crate items after cleaning and repairing. Identify contents of containers.

3. Protect items from damage during transport and storage.

4. Reinstall items in locations indicated. Comply with installation requirements for new materials and equipment. Provide connections, supports, and miscellaneous materials necessary to make item functional for use indicated.

D. Existing Items to Remain: Protect construction indicated to remain against damage and soiling during selective demolition. When permitted by Engineer items may be removed to a suitable, protected storage location during selective demolition and cleaned and reinstalled in their original locations after selective demolition operations are complete.

3.5 SELECTIVE DEMOLITION PROCEDURES FOR SPECIFIC MATERIALS

A. Asphalt: Demolish in sections. Cut asphalt full depth at junctures with construction to remain and at regular intervals, using power-driven saw, then remove asphalt between saw cuts.

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B. Concrete Slabs-on-Grade: Saw-cut perimeter of area to be demolished, then break up and remove and reinstall.

3.6 DISPOSAL OF DEMOLISHED MATERIALS

A. General: All demolition debris shall be removed from University property and disposed of by lawful means. Recycle non-hazardous materials when possible.

1. Do not allow demolished materials to accumulate on-site.

2. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

B. Burning: Do not burn demolished materials.

C. Disposal: Transport demolished materials and dispose of at designated spoil areas on Owner's property.

3.7 CLEANING

A. Clean adjacent structures and improvements of dust, dirt, and debris caused by selective demolition operations. Return adjacent areas to condition existing before selective demolition operations began.

END OF SECTION 024119

CHOH – 150696 02 61 50-1

MANAGEMENT AND DISPOSAL OF

EXCAVATED NON-HAZARDOUS

CONTAMINATED SOIL AND WASTEWATER

SECTION 02 61 50 - MANAGEMENT AND DISPOSAL OF EXCAVATED NON-HAZARDOUS

CONTAMINATED SOIL AND WASTEWATER

PART 1 - GENERAL

1.1 SUMMARY

A. This section describes the work necessary to characterize and manage contaminated media encountered as part of construction. It specifies the soil testing requirements, soil handling, soil management and field documentation requirements that apply to the onsite soil, and procedures for disposal of contaminated soil, excavated sediment, surface water, and groundwater. Soil and groundwater at the C&O Canal Lock #3 is known to be contaminated with low levels of total petroleum hydrocarbons (TPH). Special requirements apply to all soil with concentrations that exceed U.S. Environmental Protection Agency (USEPA) industrial risk screening levels, as well as District Department of Energy and Environment (DOEE) and Hazardous Waste regulations.

B. Testing of soil and water has been performed by the Owner and supplemental testing is required and shall be performed by the Contractor as described herein.

1.2 REFERENCES

A. Sediment and Canal Surface Water Sampling Results Letter, C&O Canal Lock #3 Renovations, Georgetown, Washington, DC (GeoCapitol Engineering LLC, March 16, 2016).

B. DC Risk Based Corrective Action (DCRBCA) Guidance Document: Tier 0 and Tier 1 Screening Levels.

C. United States Environmental Protection Agency (USEPA): Industrial Risk Screening Levels (RSL) Tables.

D. Contaminated Soil Management Plan, C&O Canal Lock #3 Renovations, Georgetown, Washington, DC (GeoCapitol Engineering LLC, June 16, 2016).

E. Geotechnical Engineering and Environmental Services Report, C&O Canal Lock#3 Renovations, Georgetown, Washington, DC (GeoCapitol Engineering LLC, May 16, 2016)

1.3 DEFINITIONS

A. Free Product: Petroleum or oil products or byproducts which are liquid or semi-liquid and are capable of flowing from one part of the excavation to the other.

B. Known Contamination: Contamination that has been documented as a result of past characterization (sampling and analysis) as presented in Article References herein.

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EXCAVATED NON-HAZARDOUS

CONTAMINATED SOIL AND WASTEWATER

C. Non-Contaminated Material: Soil that contains TPH less than 10 mg/kg and concentrations below the EPA Region 3 Regional Screening Levels for Industrial Soil.

D. Non-hazardous Contaminated Material: Soil that contains TPH greater than 10 mg/kg or concentrations above the EPA Region 3 Regional Screening Levels for Industrial Soil.

E. Wastewater: Water produced by Contractor’s operation and includes groundwater removed, stormwater, washdown water, and all other water that requires handling by Contractor to accomplish the Work, with the exception of surface water flowing through or diverted around the canal channel.

1.4 SUBMITTALS

A. Submittals Prior to Commencement of Work:

1. Permits and certification of non-hazardous contaminated material haulers.

2. Permits and certification of non-hazardous contaminated material disposal facilities. Disposal facilities shall be permitted to receive the following: non-hazardous contaminated material.

3. Inspection reports, including photographs, and other items requested by the Engineer.

4. Preliminary excavation and water control plan demonstrating how the Contractor will control migration of water into active excavation areas in accordance with Section 31 23 19, Dewatering, and approaches for wastewater treatment, effluent discharge, sampling, testing requirements, and disposal required in this Section.

5. Contractor’s excavation plan describing their procedures for the excavation. The plan shall describe the Contractor’s proposed sampling locations, sampling approach, and analytical methods. Testing requirements shall include the chemical and physical analyses necessary to identify and dispose of non-hazardous contaminated material at an appropriate disposal facility. The plan shall be prepared by the Contractor’s Environmental Consultant.

6. Contractor Site-specific health and safety plan in accordance with OSHA

1910.120 which includes Contractor proposed monitoring, personnel protective gear, worker’s certifications, and emergency procedures.

7. Contractor’s contingency plan in the event that free product, hazardous or toxic liquid, or solid material is encountered. Plan shall include spill containment provisions, safety equipment, and emergency provisions.

8. Qualifications for excavation subcontractor, environmental consultant, and independent testing laboratory.

B. Submittals during Excavation Activities:

1. Daily job progress log detailing information on the review of progress with respect to previously established schedule, major problems and actions taken, injury reports, equipment breakdown, and sampling results.

2. Copies of Uniform Non-Hazardous Waste Manifests with associated weight tickets, for all non-hazardous contaminated materials removed from the Site and transported to disposal facilities including materials associated with the handling of excavated

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soils (e.g., personal protective equipment, decontamination fluids).

3. Disposal site(s) for excavated non-hazardous contaminated material.

4. Submit on a monthly basis with the payment application.

5. Certificate of final disposal (or destruction) for each Non-Hazardous Waste Manifest.

1.5 CODES AND REGULATIONS

A. Comply with all federal, state, and local Regulations in handling and testing material and in performing the Work.

1.6 QUALIFICATIONS

A. Contractor Qualifications: Conform to the following qualifications:

1. Perform all Work by Contractor formally trained in procedures non-hazardous contaminated material and wastewater removal, having maintained full-time office and with proven history of successfully executing similar projects for a minimum of 3 years.

2. Work must be accomplished by Contractor with proper equipment and personnel experienced in similar work.

3. Contractor personnel shall be 40-hour trained in accordance with 29 CFR 1910.120 (including current certification).

B. Contractor’s Environmental Consultant: Shall have a minimum of 3 years experience in planning, sampling, and performing quality control in remediation of contaminated sites.

Provide job descriptions of a minimum of 5 projects, equal in size or larger, completed within the previous 3 years.

1. Qualifications of individuals obtaining and shipping samples.

C. Contractor’s Independent Testing Laboratory: Shall be approved by Engineer and shall have minimum 5 years experience performing tests required in this section.

1.7 TRANSPORTERS

A. All trucks must meet the minimum requirements stated below in order to transport contaminated material or excavated waste.

1. All trucks shall be covered during transport.

2. All trucks shall comply with all federal and state Regulations.

3. All trucks bodies shall be sealed or the excavated material suitably dried to prevent the discharge of free water.

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EXCAVATED NON-HAZARDOUS

CONTAMINATED SOIL AND WASTEWATER

PART 2 - PRODUCTS

2.1 EQUIPMENT

A. Have available, at all times, equipment, including spill control equipment for the containment of soil and wastewater.

PART 3 - EXECUTION

3.1 HANDLING EXCAVATED MATERIALS

A. It is anticipated that non-hazardous contaminated material will be encountered during the excavations for the facilities at the Site. If contaminated soil is encountered, it will be immediately removed from the Site. No staging areas are available onsite.

B. Immediately stop excavation and notify the Engineer in the event that something is encountered which is unanticipated or outside the scope of this Specification. This may include, but is not limited to, hazardous waste not previously identified in Article References herein, unidentified drums, tanks, or other solid material.

C. The Contractor’s Environmental Consultant will be present during excavation activities.

D. Excavate methodically and submit weekly excavation plans no later than Thursday of the week preceding the Work. At the Engineer’s request, test pitting will be performed in advance of the excavation for the purpose of additional sampling and delineating material to be excavated.

E. Excavate only the amount of material required to reach subgrade elevation, pending placement of backfill as described in Section 31 23 23, Fill and Backfill. Overexcavation of additional contaminated soil shall not be conducted without written authorization by the Owner. Any overexcavation of contaminated soil which is not directed by the Owner shall be disposed of at the Contractor’s own expense in accordance with the same requirements within this specification.

3.2 TESTING OF EXCAVATED MATERIAL

A. The Contractor shall obtain one sample for each 1,000 cubic yards of anticipated excavated material, unless noted otherwise or as required by the non-hazardous material disposal facility.

B. The Contractor’s excavation plan, at a minimum, will provide the following:

1. Locations, depths, soil sampling intervals, and soil sampling techniques.

2. Analyze soil samples for the constituents shown in Table 1:

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3. Perform any additional testing for ignitability, corrosivity, and reactivity in accordance with 40 CFR 261.21, 261.22, and 261.23, if required by disposal facility, at the Contractor’s own expense.

3.3 FREE PRODUCT REMOVAL

A. In the event that free product is encountered in the excavation, the product must be removed in a manner that minimizes the spread of contamination into previously uncontaminated zones by using a containment recovery and storage system to contain and remove the product.

B. If free product is encountered, provide onsite storage suitable for the recovered product. The disposal facility will be submitted for review and approval. The Contractor will arrange for any required testing of the product to obtain acceptance at an approved disposal facility prior to transport off-site for disposal.

3.4 WASTEWATER

A. Wastewater shall be discharged to the municipal sanitary manhole with the following limitations per the requirements of the DC Water Discharge permit.

B. All water within the excavation, will be treated as wastewater, with the exception of surface water flowing through or diverted around the canal channel.

Table 1 Constituent Test Method

VOCs1 SW-846 Method 8260

SVOCs1 SW-846 Method 8270 Pesticides1

SW-846 Method 8081 PCBs1

SW-846 Method 8082 TCLP Metals1 EPA 1311 with 6010

TCLP for RCRA characteristic wastes EPA 1311 D004 through D043 (40 CFR 261.24)1 with

EPA 8151

EPA 6010/7000

EPA 8081

EPA 8270

EPA 8260

TPHs, including gasoline, diesel, and oil range organics (TPH-GRO and TPH-DRO)2

SW-846 Method 8015

1Test at a frequency of 1 per 1,000 cubic yards.

2Test at a minimum frequency of 1 per 100 cubic yards.

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C. Provide onsite controls, portable settling tanks, or other facilities as required to meet the requirements for wastewater discharge into the municipal sanitary system per the requirements of the DC Water Groundwater Discharge permit.

D. Provide a flow meter for continuous recording of the discharge from the dewatering system if required by DC Water Groundwater Discharge permit.

E. Install all practical means necessary to minimize the volume of stormwater entering any excavation. These means may include, but are not limited to, construction of a diversion trench and/or a soil berm around the perimeter of the excavation. In addition, cover the slopes of the excavation with a waterproof polyethylene cover to prevent rainwater from contacting non-hazardous contaminated material and increasing the suspended solids in the excavation.

3.5 WASTEWATER TESTING

A. The Contractor shall perform sampling and testing of the wastewater produced as a result of excavation dewatering operations. Analysis shall be performed in Contractor’s laboratory and shall consist, as a minimum, of the tests described in the DC Water Groundwater Discharge permit.

B. Discharge Limits: All sampling and analyses required by this section shall be conducted in accordance with methods prescribed in 40 CFR 136 and amendments thereto. Quality assurance and quality control program must be demonstrated and documented, in accordance with established EPA guidelines.

C. Provide a monthly summary of wastewater test results with the pay application.

3.6 PERFORMING WORK IN EXCAVATED AREA

A. The Contractor Site-specific safety plan shall include provisions for air monitoring and equipment necessary, including a photo ionization detector (PID) to detect volatile organic compounds during the course of the excavation; an oxygen meter, where applicable, to measure the oxygen content within the breathing zone; an explosimeter, where applicable; and other equipment as required to safely perform the work. The Contractor health and safety plan and air monitoring plan shall be in effect at all times that exposure to constituents is possible and until all structures have been backfilled.

B. If the excavated area is unsafe for entry by field personnel according to 29 CFR 1926, Subpart P for excavations, or by the Contractor health and safety plan requirements, samples will be collected using equipment, personal protective equipment, and/or tools for remote sampling.

3.7 EXCAVATED MATERIAL SHIPMENT

A. Prior to materials being transported to the disposal facility, obtain any additional data as required by the disposal facility. The Contractor will not ship any excavated material offsite

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prior to acceptance by the disposal facility.

B. All excavated material shall be sufficiently dry prior to shipment such that free water does not develop while in transit. If materials become wet or unsuitable for transit, provide drying or solidification treatment at Contractor’s own expense.

C. Provide vehicle identification for all material being handled in accordance with federal, state, and local Regulations.

D. Prepare and provide drivers with a Uniform Non-Hazardous Waste Manifest as appropriate for each shipment completing documentation per federal, state, and local requirements for the material being transported.

E. The Non-Hazardous Waste Manifests shall be signed by the Contractor prior to the vehicles leaving the site.

F. An original copy of the Non-Hazardous Waste Manifest shall be given to Contractor’s environmental consultant prior to the truck leaving Site.

G. All open bodied vehicles carrying excavated material will be covered prior to leaving the Site.

H. Monitor all vehicles to ensure vehicles are not releasing dust or vapor emissions offsite.

I. Develop procedures for quick response to offsite vehicle breakdown and accidents.

3.8 MANIFESTS FOR EXCAVATED NONHAZARDOUS MATERIAL

A. Provide precompleted (except for weights, signatures, and dates) Non-Hazardous Waste Manifest forms to the Owner. The forms shall be sequentially numbered.

B. All excavated material shall be shipped under a waste manifest as described herein.

C. Waste Tracking Requirements and Procedures:

1. Prepare non-hazardous waste manifest documents for the hauling of excavated material to the disposal facility. This document shall include, but is not limited to:

a. Generator’s USEPA ID number, if applicable.

b. Non-hazardous waste Manifest document number.

c. Generator’s name, address, telephone number, and point of contact.

d. Transporter’s name, telephone number.

e. Disposal facility’s name, address, telephone number.

f. Disposal facility’s USEPA ID number.

g. The type, shipping class of material (non-regulated, if applicable).

h. The number of containers, the total quantity of material and/or weight/volume.

i. Contractor’s emergency contact person and telephone number in the event of a spill and/or release.

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CONTAMINATED SOIL AND WASTEWATER

2. Sign and date the non-hazardous waste manifest prior to the removal of the non-hazardous contaminated material from the property.

3. The Contractor’s Transporter shall sign and date the non-hazardous waste manifest, accepting the material for transportation to the disposal facility.

4. The Contractor’s Transporter shall provide one original and one copy to the Engineer prior to the non-hazardous contaminated material leaving the property.

5. The Contractor’s Transporter shall be responsible for the safe handling of the material in transit to the disposal facility. No stops or overnight delays will be permitted other than for weight, fuel, or legally required stops between the Site and the disposal facility.

6. The Contractor’s Transporter, upon initial delivery of the material to the disposal facility, shall receive a weight ticket or similar item from the disposal facility indicating that the material has been received by the facility. This receipt does not necessarily constitute acceptance of the material, only receipt of the material. The Contractor’s Transporter shall provide an initialed and dated copy of this receipt (weight ticket) to the Engineer within 2 working days of the delivery. The weight ticket shall clearly identify the bill of lading or non-hazardous waste manifest.

7. The disposal facility shall return a signed and dated copy of the non-hazardous waste manifest accepting the material for disposal. This shall be submitted to the Engineer within 15 days after delivery of the material by the Contractor’s Transporter.

8. The disposal facility shall determine the weight of material that has been disposed using calibrated, certified scales, and report the weight on the returned non-hazardous waste manifest. Truck weight tickets for accepted waste disposed of at the facility will be used as the basis for payment.

3.9 DISPOSAL OF NONHAZARDOUS CONTAMINATED SOIL

A. Dispose of non-hazardous contaminated material in a facility licensed to accept such waste.

B. Contractor shall provide additional testing and characterization to show that material is acceptable under facility’s permit, if required by facility.

C. Have a signed non-hazardous waste manifest for the transporting of the material to the disposal facility.

3.10 DISPOSAL OF WASTEWATER

A. Dispose of wastewater to the municipal sanitary system, with limits as provided in previous Article Wastewater, and the following.

1. All water pumped from the excavation shall be pumped through a portable sediment tank, or a filtration bag, prior to routing to the municipal sanitary system.

2. Provide a continuous/totalizing flow metering device on the pump discharge line if required by the DC Water Groundwater Discharge permit.

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EXCAVATED NON-HAZARDOUS

CONTAMINATED SOIL AND WASTEWATER

3.11 EQUIPMENT DECONTAMINATION

A. Affected pieces of excavation equipment in contact with contaminated materials shall be decontaminated using a high-pressure low-volume spray washer or other acceptable method as approved by the Engineer.

B. Decontamination water shall be collected in a sump and disposed of in accordance with Article Disposal of Wastewater.

END OF SECTION 02 61 50

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CAST-IN PLACE CONCRETE

SECTION 033000 - CAST-IN-PLACE CONCRETE

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section includes cast-in-place concrete, including formwork, reinforcement, concrete materials, mixture design, placement procedures, and finishes, for the following:

1. Lock concrete foundation mat with stamped finish.

2. Concrete footings for reconstructed stone masonry walls

3. Lean concrete under the concrete footings

4. Repair of concrete patches on existing stone masonry retaining walls

5. Concrete slab on grade at base of upper gate

1.3 DEFINITIONS

A. Cementitious Materials: Portland cement alone or in combination with one or more of the following: blended hydraulic cement, fly ash and other pozzolans, ground granulated blast-furnace slag, and silica fume; subject to compliance with requirements.

1.4 ACTION SUBMITTALS

A. Product Data: For each type of product indicated.

B. Design Mixtures: For each concrete mixture. Submit alternate design mixtures when characteristics of materials, Project conditions, weather, test results, or other circumstances warrant adjustments.

1. Indicate amounts of mixing water to be withheld for later addition at Project site.

C. Steel Reinforcement Shop Drawings: Placing drawings that detail fabrication, bending, and placement. Include bar sizes, lengths, material, grade, bar schedules, stirrup spacing, bent bar diagrams, bar arrangement, splices and laps, mechanical connections, tie spacing, hoop spacing, and supports for concrete reinforcement.

D. Formwork Shop Drawings: Signed and Sealed by the qualified professional engineer responsible for their preparation. Drawings shall include detailing fabrication, assembly, and support of formwork.

E. Construction Joint Layout: Indicate proposed construction joints required to construct the structure.

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1. Location of construction joints is subject to approval of the CO.

F. Sample plank formed finish and mock up. Provide an 8 foot by 4 foot minimum 4 inch slab in an area approved by the CO with the stamped plank finish that is to be used for the top surface of the lock foundation concrete mat. The installed concrete foundation mat shall match the approved mockup.

1.5 INFORMATIONAL SUBMITTALS

A. Qualification Data: For testing agency.

B. Material Certificates: For each of the following, signed by manufacturers:

1. Cementitious materials.

2. Admixtures.

3. Steel reinforcement and accessories.

4. Bonding agents and Epoxy Resin.

5. Adhesives.

6. Vapor retarders.

7. Repair materials.

C. Material Test Reports: For the following, from a qualified testing agency, indicating compliance with requirements:

1. Aggregates. Include service record data indicating absence of deleterious expansion of concrete due to alkali aggregate reactivity.

D. Field quality-control reports.

E. Minutes of preinstallation conference.

1.6 QUALITY ASSURANCE

A. Manufacturer Qualifications: A firm experienced in manufacturing ready-mixed concrete products and that complies with ASTM C 94/C 94M requirements for production facilities and equipment.

1. Manufacturer certified according to NRMCA's "Certification of Ready Mixed Concrete Production Facilities."

B. Testing Agency Qualifications: An independent agency, qualified according to ASTM C 1077 and ASTM E 329 for testing indicated.

1. Personnel conducting field tests shall be qualified as ACI Concrete Field Testing Technician, Grade 1, according to ACI CP-1 or an equivalent certification program.

2. Personnel performing laboratory tests shall be ACI-certified Concrete Strength Testing Technician and Concrete Laboratory Testing Technician - Grade I. Testing Agency laboratory supervisor shall be an ACI-certified Concrete Laboratory Testing Technician - Grade II.

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C. Source Limitations: Obtain each type or class of cementitious material of the same brand from the same manufacturer's plant, obtain aggregate from single source, and obtain admixtures from single source from single manufacturer.

D. ACI Publications: Comply with the following unless modified by requirements in the Contract Documents:

1. ACI 301, "Specifications for Structural Concrete,"

2. ACI 117, "Specifications for Tolerances for Concrete Construction and Materials."

E. Concrete Testing Service: Engage a qualified independent testing agency to perform material evaluation tests and to design concrete mixtures.

F. Preinstallation Conference: Conduct conference at Project site.

1. Before submitting design mixtures, review concrete design mixture and examine procedures for ensuring quality of concrete materials. Require representatives of each entity directly concerned with cast-in-place concrete to attend, including the following:

a. Contractor's superintendent.

b. Independent testing agency responsible for concrete design mixtures.

c. Ready-mix concrete manufacturer.

d. Concrete subcontractor.

2. Review special inspection and testing and inspecting agency procedures for field quality control, concrete finishes and finishing, cold- and hot-weather concreting procedures, curing procedures, construction contraction joints, and joint-filler strips, forms and form removal limitations, steel reinforcement installation, concrete repair procedures, and concrete protection.

1.7 DELIVERY, STORAGE, AND HANDLING

A. Steel Reinforcement: Deliver, store, and handle steel reinforcement to prevent bending and damage. Avoid damaging coatings on steel reinforcement.

PART 2 - PRODUCTS

2.1 FORM-FACING MATERIALS

A. Smooth-Formed Finished Concrete: Form-facing panels that will provide continuous, true, and smooth concrete surfaces. Furnish in largest practicable sizes to minimize number of joints.

1. Plywood, metal, or other approved panel materials.

2. Exterior-grade plywood panels, suitable for concrete forms, complying with DOC PS 1, and as follows:

a. High-density overlay, Class 1 or better.

b. Medium-density overlay, Class 1 or better; mill-release agent treated and edge sealed.

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c. Structural 1, B-B or better; mill oiled and edge sealed.

d. B-B (Concrete Form), Class 1 or better; mill oiled and edge sealed.

B. Rough-Formed Finished Concrete: Plywood, lumber, metal, or another approved material.

Provide lumber dressed on at least two edges and one side for tight fit.

C. Chamfer Strips: Wood, metal, PVC, or rubber strips, 3/4 by 3/4 inch, minimum.

D. Form-Release Agent: Commercially formulated form-release agent that will not bond with, stain, or adversely affect concrete surfaces and will not impair subsequent treatments of concrete surfaces.

1. Formulate form-release agent with rust inhibitor for steel form-facing materials.

E. Form Ties: Factory-fabricated, removable or snap-off metal or glass-fiber-reinforced plastic form ties designed to resist lateral pressure of fresh concrete on forms and to prevent spalling of concrete on removal.

1. Furnish units that will leave no corrodible metal closer than 1 inch to the plane of exposed concrete surface.

2. Furnish ties that, when removed, will leave holes no larger than 1 inch in diameter in concrete surface.

3. Furnish ties with integral water-barrier plates to walls indicated to receive dampproofing or waterproofing.

2.2 FINISH STAMP MATERIALS

A. Finish stamp for surface of foundation mat at the base of the lock. Stamp shall be for 8” wide wood planks, minimum 48 inches long.

2.3 STEEL REINFORCEMENT

A. Reinforcing Bars: ASTM A 615, Grade 60, deformed.

B. Low-Alloy-Steel Reinforcing Bars: ASTM A 706/A 706M, deformed.

C. Plain-Steel Wire: ASTM A 82/A 82M.

D. Deformed-Steel Wire: ASTM A 496/A 496M.

2.4 REINFORCEMENT ACCESSORIES

A. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing bars and welded wire reinforcement in place. Manufacture bar supports from steel wire, plastic, or precast concrete according to CRSI's "Manual of Standard Practice," of greater compressive strength than concrete and as follows:

1. For concrete surfaces exposed to view where legs of wire bar supports contact forms, use CRSI Class 1 plastic-protected steel wire or CRSI Class 2 bar supports.

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2.5 CONCRETE MATERIALS

A. Cementitious Material: Use the following cementitious materials, of the same type, brand, and source, throughout Project:

1. Portland Cement: ASTM C 150, Type I/II. Supplement with the following:

a. Fly Ash: ASTM C 618, Class F.

b. Ground Granulated Blast-Furnace Slag: ASTM C 989, Grade 100 or 120.

2. Blended Hydraulic Cement: ASTM C 595, Type IS, portland blast-furnace slag cement.

B. Normal-Weight Aggregates: ASTM C 33, Class 3S coarse aggregate or better, graded. Provide aggregates from a single source.

1. Maximum Coarse-Aggregate Size: 1-1/2 inches nominal.

2. Fine Aggregate: Free of materials with deleterious reactivity to alkali in cement.

C. Water: ASTM C 94/C 94M and potable.

2.6 ADMIXTURES

A. Air-Entraining Admixture: ASTM C 260.

B. Corrosion inhibiting admixture ASTM C1582.

C. Chemical Admixtures: Provide admixtures certified by manufacturer to be compatible with other admixtures and that will not contribute water-soluble chloride ions exceeding those permitted in hardened concrete. Do not use calcium chloride or admixtures containing calcium chloride.

1. Water-Reducing Admixture: ASTM C 494/C 494M, Type A.

2. Retarding Admixture: ASTM C 494/C 494M, Type B.

3. Water-Reducing and Retarding Admixture: ASTM C 494/C 494M, Type D.

4. High-Range, Water-Reducing Admixture: ASTM C 494/C 494M, Type F.

5. High-Range, Water-Reducing and Retarding Admixture: ASTM C 494/C 494M, Type G.

6. Plasticizing and Retarding Admixture: ASTM C 1017/C 1017M, Type II.

D. Set-Accelerating Corrosion-Inhibiting Admixture: Commercially formulated, anodic inhibitor or mixed cathodic and anodic inhibitor; capable of forming a protective barrier and minimizing chloride reactions with steel reinforcement in concrete and complying with ASTM C 494/C 494M, Type C.

2.7 VAPOR RETARDERS

A. Sheet Vapor Retarder: Polyethylene sheet, ASTM D 4397, not less than 10 mils thick.

B. Fine-Graded Granular Material: Clean mixture of crushed stone, crushed gravel, and manufactured or natural sand; ASTM D 448, Size 10, with 100 percent passing a 3/8-inch sieve, CHOH - 150696 03 30 00 - 6

10 to 30 percent passing a No. 100 sieve, and at least 5 percent passing No. 200 sieve;

complying with deleterious substance limits of ASTM C 33 for fine aggregates.

2.8 CURING MATERIALS

A. Evaporation Retarder: Waterborne, monomolecular film forming, manufactured for application to fresh concrete.

B. Absorptive Cover: AASHTO M 182, Class 2, burlap cloth made from jute or kenaf, weighing approximately 9 oz./sq. yd. when dry.

C. Moisture-Retaining Cover: ASTM C 171, polyethylene film or white burlap-polyethylene sheet.

D. Water: Potable.

E. Clear, Waterborne, Membrane-Forming Curing Compound: ASTM C 309, Type 1, Class B, dissipating.

2.9 RELATED MATERIALS

A. Bonding Agent: ASTM C 1059/C 1059M, Type II, non-redispersible, acrylic emulsion or styrene butadiene.

B. Epoxy Bonding Adhesive: ASTM C 881, two-component epoxy resin, capable of humid curing and bonding to damp surfaces, of class suitable for application temperature and of grade to suit requirements, and as follows:

1. Types I and II, non-load bearing, for bonding hardened or freshly mixed concrete to hardened concrete.

C. Epoxy for Dowels into hardened concrete: Two-component epoxy adhesive that are combined when dispensed through a static mixing nozzle with temperature range from 41 degrees to 104 degrees Fahrenheight, suitable for anchoring reinforcing bars to rock or hardened concrete.

Adhesive shall be furnished in side by side packs which keep component A and B separate.

Min. Con strength 2 day cure is 1800 psi. Manufacturer’s accessories for installing the adhesive must be used. Acceptable materials include HILTI RE-500 or approved equivalent.

2.10 CONCRETE MIXTURES, GENERAL

A. Prepare design mixtures for each type and strength of concrete, proportioned on the basis of laboratory trial mixture or field test data, or both, according to ACI 301.

1. Use a qualified independent testing agency for preparing and reporting proposed mixture designs based on laboratory trial mixtures.

2. Trial mixtures shall contain corrosion inhibitor at specified rate.

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B. Cementitious Materials: Use fly ash, pozzolan, and ground granulated blast-furnace slag as needed to reduce the total amount of portland cement. Limit percentage, by weight, of cementitious materials other than portland cement in concrete as follows:

1. Fly Ash: 25 percent.

2. Combined Fly Ash and Pozzolan: 25 percent.

3. Ground Granulated Blast-Furnace Slag: 50…