Repair of Potable Water and Wastewater Systems 975479 NAS ...
Repair of Potable Water and Wastewater Systems NAS Kingsville, TX
G4090 OTHER ELECTRICAL UTILITIES --End of Section--
PART 4 - SECTION G40 - Page 8
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Repair of Potable Water and Wastewater Systems NAS Kingsville, TX
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SECTION Z10 GENERAL PERFORMANCE TECHNICAL SPECIFICATION 11/10 Z10 GENERAL RFP Part 3 including the Engineering System Requirements (ESR) provide project specific requirements. The RFP Part 4 Performance Technical Sections (PTS) provide generalized technical requirements that apply to multiple facility types and include more requirements than are applicable to this project. Therefore RFP Part 4 requirements that correspond and further define the RFP Part 3 requirements are specific to this project, other RFP Part 4 requirements are not required. Z10 1.1 NARRATIVE All Performance Technical Specification (PTS) sections must be used in conjunction with all parts of the Design Build (D/B) Request for Proposal (RFP) to determine the full requirements of this solicitation. This PTS section provides general requirements for the other PTS sections of this RFP and is used in conjunction with the other PTS sections. Refer to UFGS section 01 33 10.05 20, Design Submittal Proceduresfor the Order of Precedence of the RFP Parts. Requirements listed in the Project Program take precedence over the PTS sections requirements; therefore, requirements identified in the Project Program eliminate options related to that requirement in the PTS sections. Z10 1.2 DESIGN GUIDANCE Provide work in compliance with the following design standards and codes, as a minimum. Government standards listed in this RFP take precedence over industry standards. The PTS Sections reference published standards, the titles of which can be found in the Unified Master Reference List (UMRL)on the Whole Building Design Guide at the Unified Facilities Guide Specification (UFGS) Website . The publications referenced form a part of this specification to the extent referenced. The publications are referred to in the section text by the basic designation only. Industry standards, codes, and Government standards referenced in the section text, and not found in the UMRL, are listed at the beginning of the PTS sections. The advisory provisions of all referenced codes, standards, and specifications shall be mandatory; substitute words such as "shall", "must", or "required" for words such as "should", "may", or "recommended," wherever they appear. The results of these wording substitutions incorporate these code and standard statements as requirements. Reference to the "authority having jurisdiction" for variance from criteria shall be interpreted to mean the "Chief Engineer, NAVFAC" and for contractural obligations on this project shall be interpreted to mean the "Contracting Officer". Comply with the required and advisory portions of the current edition of the standard at the time of contract award. The following list of codes and standards is not comprehensive and is augmented by other codes and standards referenced and cross-referenced in the RFP. Z10 1.2.1 INDUSTRY CODES
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INTERNATIONAL BUILDING CODE (IBC) as modified by UFC 1-200-01. UFC 1-200-01 applies the IBC to the project and references other commercial standards and UFC criteria that become part of the contract. Z10 1.2.2 INDUSTRY REQUIREMENTS WHOLE BUILDING DESIGN GUIDE (WBDG) WHOLE BUILDING DESIGN GUIDE, Ensure Occupant Safety and Health (Systems Safety Engineering) at http://www.wbdg.org/design/ensure_health.php Z10 1.2.3 GOVERNMENT STANDARDS Z10 1.2.3.1 UNIFIED FACILITIES CRITERIA (UFC) UFC 1-200-01
General Building Requirements(UFC 1-200-01 is a hub document that provides general building requirements and references other critical UFCs. A reference to UFC 1-200-01 requires compliance with the Tri-Service Core UFCs. A complete list of these Tri-Service Core UFCs is located in UFGS section 01 33 10.05 20)
UFC 1-300-09N
Design Procedures
Z10 1.2.3.2 FEDERAL STANDARDS DoD Architectural Barriers Act Accessibility Standard with DEPSECDEF Memorandum Occupational Safety and Health Association (OSHA) Z10 1.3 MATERIALS AND EQUIPMENT REQUIREMENTS IDENTIFICATION Z10 1.3.1 MATERIALS STANDARD Refer to the Project Program for identification of Government Furnished Equipment. The equipment items shall be supported by service organizations that are convenient to the equipment installation in order to render satisfactory service to the equipment on a regular and emergency basis during the warranty period of the contract. Materials, equipment, fixtures, and other appurtenances shall comply with applicable Underwriters Laboratories, (UL) Inc., American National Standards Institute, Inc., and National Electrical Manufacturer's Association standards or applicable standards of a similar independent testing organization. All materials shall be new, and shall bear the label of Underwriters Laboratories whenever standards have been established and label service is normally and regularly furnished by the agency. All equipment provided shall be listed and labeled suitable for the specified purpose, environment, and application and installed in accordance with manufacturer’s
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Repair of Potable Water and Wastewater Systems NAS Kingsville, TX
recommendations.
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Insulation shall be asbestos free.
Z10 1.3.2 EQUIPMENT NAMEPLATE IDENTIFICATION Each item of equipment shall have a nameplate bearing the manufacturer's name, address, model number, and serial number securely affixed in a conspicuous place. The nameplate of the distributing agent will not be acceptable. Z10 1.3.3 FIELD-APPLIED NAMEPLATES Provide laminated plastic nameplates for each piece of equipment. Each nameplate must identify the function and, when applicable, the number designation of that piece of equipment as used in the design documents. Provide melamine plastic nameplates, 0.125 inch (3 mm) thick, white with black center core. Z10 1.4 COMMISSIONING Commission the building systems identified in the Project Program paragraph 2.2.3. Refer to UFGS section 01 45 00.05 20, Design and Construction Quality Controlfor commissioning requirements. Test reports must be certified by the Commissioning Authority (CA), that work is in compliance with requirements of the RFP. Z10 1.5 PERFORMANCE VERIFICATION AND ACCEPTANCE TESTS Verification of satisfactory construction and system performance shall be via Performance Verification Testing, Acceptance Tests, and submittal of test reports certified by the Designer of Record (DOR), that work is in compliance with requirements of the RFP. The Government reserves the right to witness all Performance Verification and Acceptance Tests, review data, and request other such additional inspections and repeat tests as necessary to ensure that the work and provided services conform to the stated requirements. Contractor shall pay the cost of all testing. Refer to each PTS section to identify Performance Verification and Acceptance Testing required by the work specified in that PTS section. Z10 1.6 SUBMITTALS Contractor's design submittals that combines design and construction submittals, must jointly comply with UFGS sections 01 33 00.05 20, Construction Submittal Proceduresand 01 33 10.05 20, Design Submittal Procedures. Contractor's construction submittals that submitted separate from the design submittals must comply with UFGS 01 33 00.05 20, Construction Submittal Procedures. Refer to “"Construction Quality Control" in UFGS 01 33 00.05 20, Construction Submittal Proceduresand 01 45 00.05 20, Design and Construction Quality Controlto define reviewing and approving Authority of design and construction submittals. Utilize the same materials and equipment that are approved and provided for an initial facility design, on all follow-on facilities that use the same design with-in this contract. Once the initial facility design is approved by the Government, the Contractor must obtain Government approval to change materials and equipment when designing and constructing follow-on facilities utilizing the same design. Z10 1.6.1 DESIGN SUBMITTALS
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Design submittals shall be in accordance with Unified Facility Guide Specification (UFGS) section 01 33 10.05 20, Design Submittal Procedures, UFC 1-300-09N, Design Procedures, and other discipline-specific guidelines listed in the applicable PTS sections. UFGS Section 01 33 10.05 20, Design Submittal Proceduresand some PTS sections requires the use of UFGS sections in the development on the contractor originated specification. The Designer of Record (DOR) shall edit the UFGS sections for the project and submit the edited specification as a part of the design submittal. The DOR shall edit the UFGS as follows: (1) Prepare UFGS Specifications as part of the project specification, (2) Delete only portions of the UFGS specification that are not applicable to the project, (3) Edit only the bracketed choices that are within the UFGS specification text, (4) Edit blank bracketed options to include requirements that exercise prudence and adherence to acceptable industry standards, (5) Comply with the directions, directives, and requirements of all UFGS Criteria Notes. The UFGS Criteria Notes are typically bordered on the top and bottom by a line of asterisks to highlight their location. (6) If proprietary information is provided or required to streamline the construction submittal process, include proprietary information in the edited UFGS sections and added to the end of each UFGS section. Confirm that the proprietary products, materials, and systems listed in the specifications are in compliance with the requirements of the RFP. Z10 1.6.2 CONSTRUCTION SUBMITTALS Submit for approval to the Designer of Record (DOR), construction submittals, product data, manufacturer's information, shop drawings, and test reports on all materials and systems installed in the project, unless the DOR designates submittal for QC approval. Refer to each PTS section for further construction submittal requirements relating to the work identified in that particular PTS section. Some PTS sections reference UFGS sections that will require more construction submittals for DOR approval than is stated above. Refer to Section 01 33 00.05 20 for the list of construction submittals reserved for Government Approval and Government Surveillance. --End of Section--
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Repair of Potable Water and Wastewater Systems NAS Kingsville, TX
PART FIVE - PRESCRIPTIVE SPECIFICATIONS Demolition Plan Potable Water Replacement Design
STANDARD TEMPLATE - PART FIVE - PRESCRIPTIVE SPECIFICATIONS - Page 1
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1. INTRODUCTION This Decommissioning Plan describes the procedures to be used to achieve demolition of the major components of the wastewater treatment plant (WWTP) following the cleaning and disinfection of its tanks. Preliminary Decommissioning Pre-demolition Once wastewater connection is made to the local public owned treatment works (POTW), all tanks and vessels should be drained and contents properly disposed of. Specifically, all sludge in the digesters should be disposed of. All the rock filter media in the trickling filter should be removed and disposed of. Open tanks holding wastewater such as the aerator, primary clarifier, secondary clarifier, and trickling filter should be cleaned via pressure wash using a chlorinebased solution. Once these tanks are cleaned and drained, they should be routinely pumped out of any rainwater accumulation until demolition. 1.1
FACILITY BACKGROUND
The WWTP treats domestic wastewater produced at NAS Kingsville. It is permitted for 400,000 gallons per day (GPD). Treatment consists of a headworks structure housing a comminutor, an aeration basin, a primary clarifier, a trickling filter, a secondary clarifier, a chlorine contact chamber, two digesters, and a sludge drying bed. Final effluent is discharged to San Fernando Creek and further down to other Texas waters. There are also three building structures on-site: the operations office/laboratory, pump house, and storage building.
1.2
PLAN ORGANIZATION
The plan consists of the following sections: • •
• • •
Section 1. Introduction – Provides an overview and purpose of the project and the site location and description. Section 2. Approach – Describes the approach taken to identify which materials to recycle and salvage for reuse, and to properly identify hazardous and non-hazardous materials. Section 3. Materials Assessment - Gives a summary description of primary structures to be demolished. Section 4. Administrative Elements – Describes the pre-demolition planning, project recordkeeping, and health and safety issues. Section 5. Demolition Plan - Provides the plan for the demolition phase activities. This section also includes special or hazardous conditions present and the equipment needed for demolition.
2. APPROACH The demolition plan includes the following steps: • • • •
Preliminary site visits to develop the scope of work and identify potential impediments to the demolition process Evaluation of the existing conditions Listing of each tank, vessel, and building Development of recommendations for proper decommissioning
This demolition project presents a unique opportunity for materials reuse as well as unique hazards. 2.1
MATERIALS SALVAGE
Demolition of buildings can generate waste that can be used in new construction or material that can be beneficially used at other navy bases. Salvageable material can be divided into two categories: 1. Materials/equipment that can be used immediately at another facility on NAS Kingsville (e.g. the generator)
2. Materials/ equipment that can be used at other Navy facilities. Salvageable materials/equipment, which can be submitted to the Defense Reutilization and Marketing Office (DRMO), may include:
• • • • •
The backup generator (if NAS Kingsville has no use for it) Lab equipment Doors and windows Plumbing fixtures and pipes Electric fixtures and wiring
Reuse and salvage of materials/equipment reduces the energy and raw material used in reproducing similar materials/equipment and the environmental impact of such production. In addition, these practices will reduce the overall cost of the WWTP demolition and potentially the costs of construction and/or need to purchase similar material/equipment at other Navy sites. 2.2
MATERIALS RECYCLING
Materials that cannot be reused and have no value aside from their basic material content can be recycled to reduce the amount of waste generated. Recyclable materials or scrap include, for example: • • • • • • • •
Glass and plastic Asphalt (rejuvenating old asphalt by heating pavement, injecting petroleum distillates, grinding, mixing and re-rolling in a single step process) Concrete (crushing and using it as an aggregate or base material) Reinforcement steel (separating with magnets for sale as scrap metal) All metal, including aluminum or galvanized steel metal siding, steel pipes and cast iron fixtures (remove and recycle prior to demolition) Insulation materials Floor sheet backing and binders Patching compounds
As stated above, these materials must be segregated by the demolition contractor on site to minimize the handling cost and enhance the value of the scrap (e.g., commingled scrap reduces or destroys the value). Recyclable material can be divided into two categories:
1. Materials that can be reused on the demolition site, for example crushed concrete for use as backfill material. 2. Materials that can be sold as scrap or aggregate (e.g., steel bars, aluminum bar grates and crushed concrete). In this case, the market value will be deducted from the demolition contract. 2.3
HAZARDOUS WASTES
In accordance with the Occupational Safety and Health Administration (OSHA) requirements, the contractor must perform a thorough inspection prior to any demolition work to identify all hazardous materials and conditions at the site. The contractor must complete all required testing to identify and quantify the hazardous materials and submit a report must be provided to NAVFAC documenting all findings. The contractor must remove, prior to the building demolition, the hazardous materials and mitigate any hazardous conditions identified in the survey in accordance with all local, State and Federal requirements. Potential hazardous materials at Kingsville WWTP are: • • • •
Asbestos containing materials (ACMs) Lead containing wastes Hazardous wastes from the laboratory Other hazardous wastes, e.g. fluorescent light bulbs, thermostats that use mercury, lighting ballasts and batteries containing lead or cadmium
NAS Kingsville has a contract to dispose of certain amounts of hazardous wastes. Some hazardous wastes from the WWTP demolition may be disposed of together with NAS Kingsville hazardous waste if the total amounts do not exceed any applicable limit. Alternatively, DRMO Environmental manages the disposal of hazardous property for Department of Defense (DoD) activities. Hazardous property is handled according to the same priorities as other property: 1. Reutilization within DoD
2. Transfer to other federal agencies 3. Donations to qualified state and nonprofit organizations 4. Sale to the public including recyclers This process maximizes the use of each item and minimizes the environmental risks and the costs associated with disposal. 2.4
NON – HAZARDOUS WASTES
The demolition process will likely generate a minimal amount of non-hazardous and nonrecyclable solid waste (estimated at approximately 5% of the project’s total solid waste). These wastes will largely include demolition waste from gutting the four buildings on site. Nonrecyclable and non-hazardous demolition wastes will be disposed of at a regular solid waste landfill or a construction and demolition debris landfill in accordance with local, State and Federal regulations.
3.
MATERIALS ASSESSMENT
A materials inventory was estimated from as-built drawings and data collected from an on-site field visit. 3.1
STRUCTURES
The primary structures to be decommissioned are described below. Dimensions were captured through review of any available As-Built drawings and field measurements.
Note: All appurtenances for each primary structure are also to be removed and disposed of including but not limited to pumps, motors, electrical paneling/wiring, controllers, steel walkways, steel ladders, steel railing, rock filter media, concrete pathways, and concrete stairs.
To account for any unknown site conditions, an additional ten (10) percent was factored into the concrete materials quantity. This contingency provides a conservative estimate for materials to be handled. Actual conditions may yield lower quantities during demolition. 1 –Headworks Tank: Rectangular concrete tank 19-feet long, 4-feet wide, and 10-feet deep with 6-inch walls. This component houses the bar screen and comminutor. It is surrounded by 1.5inch steel grating. Figure 1: Headworks Tank
2 – Aerator: Rectangular concrete tank 22-feet long, 14.5-feet wide, and 12-feet deep. Diffused air is introduced into the wastewater in this tank to provide oxygen. It is surrounded by 1.5-inch steel grating.
Figure 2: Aerator
3 – Primary Clarifier: Circular concrete tank with a diameter of 35-feet and depth of 8-feet. It is surrounded by 1.5-inch steel grating and a 3-foot wide steel walkway spans the diameter of the tank. Figure 3: Primary Clarifier
4 – Trickling Filter: Large, circular concrete tank with a diameter of 90-feet and depth of 6-feet. It is filled with rock filter media and surrounded by 1.5-inch steel grating.
Figure 4: Trickling Filter
5 – Final Clarifier: Circular concrete tank with a diameter of 35-feet and depth of 9-feet. It is surrounded by 1.5-inch steel grating and a 3-foot wide steel walkway spans the diameter of the tank. Figure 5: Final Clarifier
6 – Chlorine Contact Chamber: Rectangular concrete tank measuring 24.2-feet long, 17.5-feet wide, and a depth of 10-feet. It is surrounded by 1.5-inch steel grating. Figure 6: Chlorine Contact Chamber
7 – Digester 1: Circular concrete structure above grade with a diameter of 35-feet and height of 16.5-feet. Figure 7: Digester 1
8 – Digester 2: Circular concrete tank. Figure 8: Digester 2
9–Operations Building (1794): Building where laboratory analysis and process control is conducted. Figure 9: Operations Building
10–Generator Storage Building: Structure housing the on-site generator. Figure 10: Generator Storage Building
11–Storage Building Figure 11: Storage Building
Table 3-1 Primary Structures to be Demolished
No.
Item
Material
1
Headworks
Concrete
2
Aerator
Concrete
3
Primary Clarifier
Concrete
4
Trickling Filter
Concrete
5
Final Clarifier
Concrete
6
Chlorine Contact Chamber
Concrete
7
Digester
Concrete
8.
Digester 2
Concrete
9.
Operations Building/Lab
Concrete slab and other
10. Generator Storage Building
Concrete slab and other
11. Storage Building
Concrete slab and other
4. ADMINISTRATIVE ELEMENTS This section provides essential project planning, recordkeeping and a discussion of site health and safety. SITE PLANNING
4.1
Prior to any demolition activities NAS Kingsville might want to arrange for a site visit with the contractor(s) to discuss the general manner and order in which the project should be completed. This meeting will provide NAS Kingsville an opportunity to discuss with or advise the contractor(s) of any specific concerns or restrictions that may be encountered while completing the site work. The specific items to be discussed and agreed upon during the site visit are: • • • • • • • • • • • •
NAS Kingsville ingress and egress security requirements Location of orange construction fencing Locations for equipment storage Locations for materials stockpiles Locations for delivery of government owned materials Areas not to be disturbed on site Access points to work area Traffic routing Hauling routes Location of command post/office facilities Location of contractor accessible utilities (water, toilet and electrical) Safety issues and requirements
The demolition contractor should complete a photographic record of the site to document predemolition conditions. 4.2
RECORDKEEPING
The demolition activities must be documented in bound field notebooks to create a record of materials and quantities demolished, salvaged and recycled. The documentation must include the
order of events and time needed to complete the individual demolition activities. An electronic photographic record of the activities should also be maintained. The photographs, showing daily work progress, should be dated and labeled with activities descriptions, and should be taken from the four directions showing different views of the site where construction activity is taking place. These documentations should also include details and notes that will enable the generation of asbuilt drawings of the post-demolition condition. All changes and deviation from this decommissioning plan will be recorded including the reason for the change, approval of NAS Kingsville personnel and NAVFAC Southeast. 4.3
GUIDANCE DOCUMENTS
Demolition activities must be conducted in accordance with the Unified Facilities Guidance Specifications (UFGS) that NAVFAC uses on all construction related projects. The demolition work plan must adhere to the following UFGS: • • • • • • • • • • 4.4
UFGS 02 82 14.00 10 (February 2010) Asbestos Hazard Control Activities UFGS 02 82 16.00 20 Engineering Control of Asbestos Containing Materials (February 2010) UFGS 01 74 19 Construction and Demolition Waste Management (January 2007) UFGS 02 41 00 Demolition and Deconstruction (May 2010) UFGS 01 57 20.00 10 Environmental Protection (April 2006) UFGS 31 23 00.00 20 Excavation and Fill (April 2006) UFGS 02 81 00 Transportation and Disposal of Hazardous Materials (February 2010) UFGS 02 83 13.00 20 Lead in Construction (April 2006) UFGS 02 82 13.00 20 Removal/Control and Disposal of Paint with Lead (February 2010) UFGS 01 62 35 Recycled and Recovered Materials (July 2006) HEALTH AND SAFETY
Prior to beginning demolition activities, the demolition contractor should develop a site-specific Health and Safety Plan (HASP) to be approved by NAVFAC Southeast. NAVFAC Southeast may request that the NAS Kingsville Fire Department, Health and Safety Officer, Environmental Division and Public Works Department also review the HASP and provide project support. This HASP will detail anticipated hazards given the type of work to be conducted and include
checklists and provisions for periodic safety briefings. The Site Safety and Health Officer (SSHO) and the project manager should maintain the HASP on the job site. The following references can be used in developing the HASP: •
• • • •
American Association of State Highway and Transportation Officials (AASHTO) M 145 (1991; R 2004) Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes American Society of Safety Engineers (ASSE/SAFE) A10.6 (2006) Safety Requirements for Demolition Operations United States Army Corps of Engineers (USACE) EM 385-1-1 (2008) Safety and Health Requirements Manual 40 Code of Federal Regulations (CFR) 61 National Emission Standards for Hazardous Air Pollutants AASHTO T 180 (2001; R 2004) Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and an 457-mm (18-in) Drop
5. DEMOLITION PLAN The demolition phase includes the steps required to remove the equipment and raze the tanks and buildings on the site. These steps will ensure that the demolition contractor minimizes the generation of hazardous and solid wastes, saves energy and conserves natural resources, utilizes cost effective waste management practices and accomplishes the work in accordance with all local, state and federal regulations. The demolition contractor qualified individuals should disconnect and cap all utilities prior to demolition in accordance with national, state and local codes. Utilities to be disconnected include, but are not limited to electrical, communications, fire, water, sewer and floor drains. 5.1
HAZARDOUS MATERIALS IDENTIFICATION AND REMOVAL
In accordance with OSHA requirements and as described above in Section 2.3, demolition crews should conduct a thorough inspection of the three (3) buildings and the tanks on site prior to any demolition work to identify all hazardous materials and conditions in the building and on the site. Inspectors should complete any testing required to identify and quantify the hazardous material and submit a report to NAS Kingsville documenting all findings. The next step prior to
building/tank demolition will be to remove the hazardous materials and to mitigate any hazardous conditions identified in the survey in accordance with all local, state and federal requirements. Hazardous materials include ACMs, surfaces painted with lead paint and hazardous chemicals in the laboratory. There may also be hidden hazardous materials not identifiable during the inventory inspection, for example drums or containers filled with unknown materials. Therefore, all demolition workers must be qualified personnel that understand and recognize the potential hazards that may exist. NAS Kingsville has a contract to dispose of certain amounts of hazardous wastes. Some of the hazardous wastes from the WWTP demolition, such as laboratory chemicals with a Material Safety Data Sheet (MSDS) and light bulbs, may be disposed of together with NAS Kingsville if the total amounts do not exceed NAS Kingsville's limit. Otherwise, there might be an extra disposal cost incurred. After a full inspection of hazardous wastes, the contractor should contact NAS Kingsville PWD Environmental to discuss disposal possibilities and procedures As an alternative, DRMO Environmental manages the disposal of hazardous property for DoD activities. Hazardous property is handled according to the same priorities as other property: reutilization within DoD, transfer to other federal agencies, donations to qualified state and nonprofit organizations and sale to the public, including recyclers. This process maximizes the use of each item and minimizes the environmental risks and the costs associated with disposal
5.1.1
Asbestos-Containing Materials
ACMs present unique hazards for removal and disposal. Asbestos is one of the most hazardous materials encountered during demolition activities. Some asbestos materials can break into fibers and float in the air. These minute fibers are not visible to the unaided eye. They pass through the filters of normal vacuum cleaners and reenter the air. Fibers inhaled from the air present a health risk. Asbestos has been used in a wide variety of products including, but not limited to, the following building materials:
• • • • •
Friable ceilings Floor tiles Roofing materials Textured paints Laboratory countertops
Recognizing ACMs can be difficult and requires the services of a contractor trained and experienced in asbestos removal projects. In general, the presence of ACMs may be suspected if the following conditions are observed: • • •
Friable cementitious sprayed-on or troweled material (acoustic plaster) Perforated, non-friable wallboard with friable sprayed-on material behind Friable, fluffy sprayed-on material (fireproofing) or friable fireproofing material on beams with pipe insulation below
In addition, there are certain areas where asbestos is likely to be present. Asbestos may be present in the backing of some vinyl sheet flooring. Fibers can be released if the backing on the sheet flooring is sanded. Demolition or renovation operations in facilities containing friable asbestos above certain quantities are regulated under the National Emission Standards for Hazardous Air Pollutants (NESHAP) regulations (40 CFR 61). These regulations specify asbestos emission limits and control procedures. Asbestos is also regulated by state and local authorities including the following: • • • • • •
Licensing of asbestos removal contractors Permitting of removal projects Air monitoring requirements Inspection requirements Restrictions on use of glove bags Enclosure requirements
A manual on asbestos control entitled Guidance for Controlling Asbestos-Containing Materials in Buildings, commonly referred to as the “Purple Book,” is available from the United States Environmental Protection Agency (USEPA). Only individuals specifically experienced, trained and licensed for asbestos demolition and removal operations should perform asbestos removal at the NAS Kingsville site. A full survey of possible sources of asbestos is required prior to demolition, which should include the following:
G4090 OTHER ELECTRICAL UTILITIES --End of Section--
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Repair of Potable Water and Wastewater Systems NAS Kingsville, TX
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SECTION Z10 GENERAL PERFORMANCE TECHNICAL SPECIFICATION 11/10 Z10 GENERAL RFP Part 3 including the Engineering System Requirements (ESR) provide project specific requirements. The RFP Part 4 Performance Technical Sections (PTS) provide generalized technical requirements that apply to multiple facility types and include more requirements than are applicable to this project. Therefore RFP Part 4 requirements that correspond and further define the RFP Part 3 requirements are specific to this project, other RFP Part 4 requirements are not required. Z10 1.1 NARRATIVE All Performance Technical Specification (PTS) sections must be used in conjunction with all parts of the Design Build (D/B) Request for Proposal (RFP) to determine the full requirements of this solicitation. This PTS section provides general requirements for the other PTS sections of this RFP and is used in conjunction with the other PTS sections. Refer to UFGS section 01 33 10.05 20, Design Submittal Proceduresfor the Order of Precedence of the RFP Parts. Requirements listed in the Project Program take precedence over the PTS sections requirements; therefore, requirements identified in the Project Program eliminate options related to that requirement in the PTS sections. Z10 1.2 DESIGN GUIDANCE Provide work in compliance with the following design standards and codes, as a minimum. Government standards listed in this RFP take precedence over industry standards. The PTS Sections reference published standards, the titles of which can be found in the Unified Master Reference List (UMRL)on the Whole Building Design Guide at the Unified Facilities Guide Specification (UFGS) Website . The publications referenced form a part of this specification to the extent referenced. The publications are referred to in the section text by the basic designation only. Industry standards, codes, and Government standards referenced in the section text, and not found in the UMRL, are listed at the beginning of the PTS sections. The advisory provisions of all referenced codes, standards, and specifications shall be mandatory; substitute words such as "shall", "must", or "required" for words such as "should", "may", or "recommended," wherever they appear. The results of these wording substitutions incorporate these code and standard statements as requirements. Reference to the "authority having jurisdiction" for variance from criteria shall be interpreted to mean the "Chief Engineer, NAVFAC" and for contractural obligations on this project shall be interpreted to mean the "Contracting Officer". Comply with the required and advisory portions of the current edition of the standard at the time of contract award. The following list of codes and standards is not comprehensive and is augmented by other codes and standards referenced and cross-referenced in the RFP. Z10 1.2.1 INDUSTRY CODES
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INTERNATIONAL BUILDING CODE (IBC) as modified by UFC 1-200-01. UFC 1-200-01 applies the IBC to the project and references other commercial standards and UFC criteria that become part of the contract. Z10 1.2.2 INDUSTRY REQUIREMENTS WHOLE BUILDING DESIGN GUIDE (WBDG) WHOLE BUILDING DESIGN GUIDE, Ensure Occupant Safety and Health (Systems Safety Engineering) at http://www.wbdg.org/design/ensure_health.php Z10 1.2.3 GOVERNMENT STANDARDS Z10 1.2.3.1 UNIFIED FACILITIES CRITERIA (UFC) UFC 1-200-01
General Building Requirements(UFC 1-200-01 is a hub document that provides general building requirements and references other critical UFCs. A reference to UFC 1-200-01 requires compliance with the Tri-Service Core UFCs. A complete list of these Tri-Service Core UFCs is located in UFGS section 01 33 10.05 20)
UFC 1-300-09N
Design Procedures
Z10 1.2.3.2 FEDERAL STANDARDS DoD Architectural Barriers Act Accessibility Standard with DEPSECDEF Memorandum Occupational Safety and Health Association (OSHA) Z10 1.3 MATERIALS AND EQUIPMENT REQUIREMENTS IDENTIFICATION Z10 1.3.1 MATERIALS STANDARD Refer to the Project Program for identification of Government Furnished Equipment. The equipment items shall be supported by service organizations that are convenient to the equipment installation in order to render satisfactory service to the equipment on a regular and emergency basis during the warranty period of the contract. Materials, equipment, fixtures, and other appurtenances shall comply with applicable Underwriters Laboratories, (UL) Inc., American National Standards Institute, Inc., and National Electrical Manufacturer's Association standards or applicable standards of a similar independent testing organization. All materials shall be new, and shall bear the label of Underwriters Laboratories whenever standards have been established and label service is normally and regularly furnished by the agency. All equipment provided shall be listed and labeled suitable for the specified purpose, environment, and application and installed in accordance with manufacturer’s
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Repair of Potable Water and Wastewater Systems NAS Kingsville, TX
recommendations.
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Insulation shall be asbestos free.
Z10 1.3.2 EQUIPMENT NAMEPLATE IDENTIFICATION Each item of equipment shall have a nameplate bearing the manufacturer's name, address, model number, and serial number securely affixed in a conspicuous place. The nameplate of the distributing agent will not be acceptable. Z10 1.3.3 FIELD-APPLIED NAMEPLATES Provide laminated plastic nameplates for each piece of equipment. Each nameplate must identify the function and, when applicable, the number designation of that piece of equipment as used in the design documents. Provide melamine plastic nameplates, 0.125 inch (3 mm) thick, white with black center core. Z10 1.4 COMMISSIONING Commission the building systems identified in the Project Program paragraph 2.2.3. Refer to UFGS section 01 45 00.05 20, Design and Construction Quality Controlfor commissioning requirements. Test reports must be certified by the Commissioning Authority (CA), that work is in compliance with requirements of the RFP. Z10 1.5 PERFORMANCE VERIFICATION AND ACCEPTANCE TESTS Verification of satisfactory construction and system performance shall be via Performance Verification Testing, Acceptance Tests, and submittal of test reports certified by the Designer of Record (DOR), that work is in compliance with requirements of the RFP. The Government reserves the right to witness all Performance Verification and Acceptance Tests, review data, and request other such additional inspections and repeat tests as necessary to ensure that the work and provided services conform to the stated requirements. Contractor shall pay the cost of all testing. Refer to each PTS section to identify Performance Verification and Acceptance Testing required by the work specified in that PTS section. Z10 1.6 SUBMITTALS Contractor's design submittals that combines design and construction submittals, must jointly comply with UFGS sections 01 33 00.05 20, Construction Submittal Proceduresand 01 33 10.05 20, Design Submittal Procedures. Contractor's construction submittals that submitted separate from the design submittals must comply with UFGS 01 33 00.05 20, Construction Submittal Procedures. Refer to “"Construction Quality Control" in UFGS 01 33 00.05 20, Construction Submittal Proceduresand 01 45 00.05 20, Design and Construction Quality Controlto define reviewing and approving Authority of design and construction submittals. Utilize the same materials and equipment that are approved and provided for an initial facility design, on all follow-on facilities that use the same design with-in this contract. Once the initial facility design is approved by the Government, the Contractor must obtain Government approval to change materials and equipment when designing and constructing follow-on facilities utilizing the same design. Z10 1.6.1 DESIGN SUBMITTALS
PART 4 - SECTION Z10 - Page 3
Repair of Potable Water and Wastewater Systems NAS Kingsville, TX
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Design submittals shall be in accordance with Unified Facility Guide Specification (UFGS) section 01 33 10.05 20, Design Submittal Procedures, UFC 1-300-09N, Design Procedures, and other discipline-specific guidelines listed in the applicable PTS sections. UFGS Section 01 33 10.05 20, Design Submittal Proceduresand some PTS sections requires the use of UFGS sections in the development on the contractor originated specification. The Designer of Record (DOR) shall edit the UFGS sections for the project and submit the edited specification as a part of the design submittal. The DOR shall edit the UFGS as follows: (1) Prepare UFGS Specifications as part of the project specification, (2) Delete only portions of the UFGS specification that are not applicable to the project, (3) Edit only the bracketed choices that are within the UFGS specification text, (4) Edit blank bracketed options to include requirements that exercise prudence and adherence to acceptable industry standards, (5) Comply with the directions, directives, and requirements of all UFGS Criteria Notes. The UFGS Criteria Notes are typically bordered on the top and bottom by a line of asterisks to highlight their location. (6) If proprietary information is provided or required to streamline the construction submittal process, include proprietary information in the edited UFGS sections and added to the end of each UFGS section. Confirm that the proprietary products, materials, and systems listed in the specifications are in compliance with the requirements of the RFP. Z10 1.6.2 CONSTRUCTION SUBMITTALS Submit for approval to the Designer of Record (DOR), construction submittals, product data, manufacturer's information, shop drawings, and test reports on all materials and systems installed in the project, unless the DOR designates submittal for QC approval. Refer to each PTS section for further construction submittal requirements relating to the work identified in that particular PTS section. Some PTS sections reference UFGS sections that will require more construction submittals for DOR approval than is stated above. Refer to Section 01 33 00.05 20 for the list of construction submittals reserved for Government Approval and Government Surveillance. --End of Section--
PART 4 - SECTION Z10 - Page 4
Repair of Potable Water and Wastewater Systems NAS Kingsville, TX
PART FIVE - PRESCRIPTIVE SPECIFICATIONS Demolition Plan Potable Water Replacement Design
STANDARD TEMPLATE - PART FIVE - PRESCRIPTIVE SPECIFICATIONS - Page 1
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1. INTRODUCTION This Decommissioning Plan describes the procedures to be used to achieve demolition of the major components of the wastewater treatment plant (WWTP) following the cleaning and disinfection of its tanks. Preliminary Decommissioning Pre-demolition Once wastewater connection is made to the local public owned treatment works (POTW), all tanks and vessels should be drained and contents properly disposed of. Specifically, all sludge in the digesters should be disposed of. All the rock filter media in the trickling filter should be removed and disposed of. Open tanks holding wastewater such as the aerator, primary clarifier, secondary clarifier, and trickling filter should be cleaned via pressure wash using a chlorinebased solution. Once these tanks are cleaned and drained, they should be routinely pumped out of any rainwater accumulation until demolition. 1.1
FACILITY BACKGROUND
The WWTP treats domestic wastewater produced at NAS Kingsville. It is permitted for 400,000 gallons per day (GPD). Treatment consists of a headworks structure housing a comminutor, an aeration basin, a primary clarifier, a trickling filter, a secondary clarifier, a chlorine contact chamber, two digesters, and a sludge drying bed. Final effluent is discharged to San Fernando Creek and further down to other Texas waters. There are also three building structures on-site: the operations office/laboratory, pump house, and storage building.
1.2
PLAN ORGANIZATION
The plan consists of the following sections: • •
• • •
Section 1. Introduction – Provides an overview and purpose of the project and the site location and description. Section 2. Approach – Describes the approach taken to identify which materials to recycle and salvage for reuse, and to properly identify hazardous and non-hazardous materials. Section 3. Materials Assessment - Gives a summary description of primary structures to be demolished. Section 4. Administrative Elements – Describes the pre-demolition planning, project recordkeeping, and health and safety issues. Section 5. Demolition Plan - Provides the plan for the demolition phase activities. This section also includes special or hazardous conditions present and the equipment needed for demolition.
2. APPROACH The demolition plan includes the following steps: • • • •
Preliminary site visits to develop the scope of work and identify potential impediments to the demolition process Evaluation of the existing conditions Listing of each tank, vessel, and building Development of recommendations for proper decommissioning
This demolition project presents a unique opportunity for materials reuse as well as unique hazards. 2.1
MATERIALS SALVAGE
Demolition of buildings can generate waste that can be used in new construction or material that can be beneficially used at other navy bases. Salvageable material can be divided into two categories: 1. Materials/equipment that can be used immediately at another facility on NAS Kingsville (e.g. the generator)
2. Materials/ equipment that can be used at other Navy facilities. Salvageable materials/equipment, which can be submitted to the Defense Reutilization and Marketing Office (DRMO), may include:
• • • • •
The backup generator (if NAS Kingsville has no use for it) Lab equipment Doors and windows Plumbing fixtures and pipes Electric fixtures and wiring
Reuse and salvage of materials/equipment reduces the energy and raw material used in reproducing similar materials/equipment and the environmental impact of such production. In addition, these practices will reduce the overall cost of the WWTP demolition and potentially the costs of construction and/or need to purchase similar material/equipment at other Navy sites. 2.2
MATERIALS RECYCLING
Materials that cannot be reused and have no value aside from their basic material content can be recycled to reduce the amount of waste generated. Recyclable materials or scrap include, for example: • • • • • • • •
Glass and plastic Asphalt (rejuvenating old asphalt by heating pavement, injecting petroleum distillates, grinding, mixing and re-rolling in a single step process) Concrete (crushing and using it as an aggregate or base material) Reinforcement steel (separating with magnets for sale as scrap metal) All metal, including aluminum or galvanized steel metal siding, steel pipes and cast iron fixtures (remove and recycle prior to demolition) Insulation materials Floor sheet backing and binders Patching compounds
As stated above, these materials must be segregated by the demolition contractor on site to minimize the handling cost and enhance the value of the scrap (e.g., commingled scrap reduces or destroys the value). Recyclable material can be divided into two categories:
1. Materials that can be reused on the demolition site, for example crushed concrete for use as backfill material. 2. Materials that can be sold as scrap or aggregate (e.g., steel bars, aluminum bar grates and crushed concrete). In this case, the market value will be deducted from the demolition contract. 2.3
HAZARDOUS WASTES
In accordance with the Occupational Safety and Health Administration (OSHA) requirements, the contractor must perform a thorough inspection prior to any demolition work to identify all hazardous materials and conditions at the site. The contractor must complete all required testing to identify and quantify the hazardous materials and submit a report must be provided to NAVFAC documenting all findings. The contractor must remove, prior to the building demolition, the hazardous materials and mitigate any hazardous conditions identified in the survey in accordance with all local, State and Federal requirements. Potential hazardous materials at Kingsville WWTP are: • • • •
Asbestos containing materials (ACMs) Lead containing wastes Hazardous wastes from the laboratory Other hazardous wastes, e.g. fluorescent light bulbs, thermostats that use mercury, lighting ballasts and batteries containing lead or cadmium
NAS Kingsville has a contract to dispose of certain amounts of hazardous wastes. Some hazardous wastes from the WWTP demolition may be disposed of together with NAS Kingsville hazardous waste if the total amounts do not exceed any applicable limit. Alternatively, DRMO Environmental manages the disposal of hazardous property for Department of Defense (DoD) activities. Hazardous property is handled according to the same priorities as other property: 1. Reutilization within DoD
2. Transfer to other federal agencies 3. Donations to qualified state and nonprofit organizations 4. Sale to the public including recyclers This process maximizes the use of each item and minimizes the environmental risks and the costs associated with disposal. 2.4
NON – HAZARDOUS WASTES
The demolition process will likely generate a minimal amount of non-hazardous and nonrecyclable solid waste (estimated at approximately 5% of the project’s total solid waste). These wastes will largely include demolition waste from gutting the four buildings on site. Nonrecyclable and non-hazardous demolition wastes will be disposed of at a regular solid waste landfill or a construction and demolition debris landfill in accordance with local, State and Federal regulations.
3.
MATERIALS ASSESSMENT
A materials inventory was estimated from as-built drawings and data collected from an on-site field visit. 3.1
STRUCTURES
The primary structures to be decommissioned are described below. Dimensions were captured through review of any available As-Built drawings and field measurements.
Note: All appurtenances for each primary structure are also to be removed and disposed of including but not limited to pumps, motors, electrical paneling/wiring, controllers, steel walkways, steel ladders, steel railing, rock filter media, concrete pathways, and concrete stairs.
To account for any unknown site conditions, an additional ten (10) percent was factored into the concrete materials quantity. This contingency provides a conservative estimate for materials to be handled. Actual conditions may yield lower quantities during demolition. 1 –Headworks Tank: Rectangular concrete tank 19-feet long, 4-feet wide, and 10-feet deep with 6-inch walls. This component houses the bar screen and comminutor. It is surrounded by 1.5inch steel grating. Figure 1: Headworks Tank
2 – Aerator: Rectangular concrete tank 22-feet long, 14.5-feet wide, and 12-feet deep. Diffused air is introduced into the wastewater in this tank to provide oxygen. It is surrounded by 1.5-inch steel grating.
Figure 2: Aerator
3 – Primary Clarifier: Circular concrete tank with a diameter of 35-feet and depth of 8-feet. It is surrounded by 1.5-inch steel grating and a 3-foot wide steel walkway spans the diameter of the tank. Figure 3: Primary Clarifier
4 – Trickling Filter: Large, circular concrete tank with a diameter of 90-feet and depth of 6-feet. It is filled with rock filter media and surrounded by 1.5-inch steel grating.
Figure 4: Trickling Filter
5 – Final Clarifier: Circular concrete tank with a diameter of 35-feet and depth of 9-feet. It is surrounded by 1.5-inch steel grating and a 3-foot wide steel walkway spans the diameter of the tank. Figure 5: Final Clarifier
6 – Chlorine Contact Chamber: Rectangular concrete tank measuring 24.2-feet long, 17.5-feet wide, and a depth of 10-feet. It is surrounded by 1.5-inch steel grating. Figure 6: Chlorine Contact Chamber
7 – Digester 1: Circular concrete structure above grade with a diameter of 35-feet and height of 16.5-feet. Figure 7: Digester 1
8 – Digester 2: Circular concrete tank. Figure 8: Digester 2
9–Operations Building (1794): Building where laboratory analysis and process control is conducted. Figure 9: Operations Building
10–Generator Storage Building: Structure housing the on-site generator. Figure 10: Generator Storage Building
11–Storage Building Figure 11: Storage Building
Table 3-1 Primary Structures to be Demolished
No.
Item
Material
1
Headworks
Concrete
2
Aerator
Concrete
3
Primary Clarifier
Concrete
4
Trickling Filter
Concrete
5
Final Clarifier
Concrete
6
Chlorine Contact Chamber
Concrete
7
Digester
Concrete
8.
Digester 2
Concrete
9.
Operations Building/Lab
Concrete slab and other
10. Generator Storage Building
Concrete slab and other
11. Storage Building
Concrete slab and other
4. ADMINISTRATIVE ELEMENTS This section provides essential project planning, recordkeeping and a discussion of site health and safety. SITE PLANNING
4.1
Prior to any demolition activities NAS Kingsville might want to arrange for a site visit with the contractor(s) to discuss the general manner and order in which the project should be completed. This meeting will provide NAS Kingsville an opportunity to discuss with or advise the contractor(s) of any specific concerns or restrictions that may be encountered while completing the site work. The specific items to be discussed and agreed upon during the site visit are: • • • • • • • • • • • •
NAS Kingsville ingress and egress security requirements Location of orange construction fencing Locations for equipment storage Locations for materials stockpiles Locations for delivery of government owned materials Areas not to be disturbed on site Access points to work area Traffic routing Hauling routes Location of command post/office facilities Location of contractor accessible utilities (water, toilet and electrical) Safety issues and requirements
The demolition contractor should complete a photographic record of the site to document predemolition conditions. 4.2
RECORDKEEPING
The demolition activities must be documented in bound field notebooks to create a record of materials and quantities demolished, salvaged and recycled. The documentation must include the
order of events and time needed to complete the individual demolition activities. An electronic photographic record of the activities should also be maintained. The photographs, showing daily work progress, should be dated and labeled with activities descriptions, and should be taken from the four directions showing different views of the site where construction activity is taking place. These documentations should also include details and notes that will enable the generation of asbuilt drawings of the post-demolition condition. All changes and deviation from this decommissioning plan will be recorded including the reason for the change, approval of NAS Kingsville personnel and NAVFAC Southeast. 4.3
GUIDANCE DOCUMENTS
Demolition activities must be conducted in accordance with the Unified Facilities Guidance Specifications (UFGS) that NAVFAC uses on all construction related projects. The demolition work plan must adhere to the following UFGS: • • • • • • • • • • 4.4
UFGS 02 82 14.00 10 (February 2010) Asbestos Hazard Control Activities UFGS 02 82 16.00 20 Engineering Control of Asbestos Containing Materials (February 2010) UFGS 01 74 19 Construction and Demolition Waste Management (January 2007) UFGS 02 41 00 Demolition and Deconstruction (May 2010) UFGS 01 57 20.00 10 Environmental Protection (April 2006) UFGS 31 23 00.00 20 Excavation and Fill (April 2006) UFGS 02 81 00 Transportation and Disposal of Hazardous Materials (February 2010) UFGS 02 83 13.00 20 Lead in Construction (April 2006) UFGS 02 82 13.00 20 Removal/Control and Disposal of Paint with Lead (February 2010) UFGS 01 62 35 Recycled and Recovered Materials (July 2006) HEALTH AND SAFETY
Prior to beginning demolition activities, the demolition contractor should develop a site-specific Health and Safety Plan (HASP) to be approved by NAVFAC Southeast. NAVFAC Southeast may request that the NAS Kingsville Fire Department, Health and Safety Officer, Environmental Division and Public Works Department also review the HASP and provide project support. This HASP will detail anticipated hazards given the type of work to be conducted and include
checklists and provisions for periodic safety briefings. The Site Safety and Health Officer (SSHO) and the project manager should maintain the HASP on the job site. The following references can be used in developing the HASP: •
• • • •
American Association of State Highway and Transportation Officials (AASHTO) M 145 (1991; R 2004) Classification of Soils and Soil-Aggregate Mixtures for Highway Construction Purposes American Society of Safety Engineers (ASSE/SAFE) A10.6 (2006) Safety Requirements for Demolition Operations United States Army Corps of Engineers (USACE) EM 385-1-1 (2008) Safety and Health Requirements Manual 40 Code of Federal Regulations (CFR) 61 National Emission Standards for Hazardous Air Pollutants AASHTO T 180 (2001; R 2004) Moisture-Density Relations of Soils Using a 4.54-kg (10-lb) Rammer and an 457-mm (18-in) Drop
5. DEMOLITION PLAN The demolition phase includes the steps required to remove the equipment and raze the tanks and buildings on the site. These steps will ensure that the demolition contractor minimizes the generation of hazardous and solid wastes, saves energy and conserves natural resources, utilizes cost effective waste management practices and accomplishes the work in accordance with all local, state and federal regulations. The demolition contractor qualified individuals should disconnect and cap all utilities prior to demolition in accordance with national, state and local codes. Utilities to be disconnected include, but are not limited to electrical, communications, fire, water, sewer and floor drains. 5.1
HAZARDOUS MATERIALS IDENTIFICATION AND REMOVAL
In accordance with OSHA requirements and as described above in Section 2.3, demolition crews should conduct a thorough inspection of the three (3) buildings and the tanks on site prior to any demolition work to identify all hazardous materials and conditions in the building and on the site. Inspectors should complete any testing required to identify and quantify the hazardous material and submit a report to NAS Kingsville documenting all findings. The next step prior to
building/tank demolition will be to remove the hazardous materials and to mitigate any hazardous conditions identified in the survey in accordance with all local, state and federal requirements. Hazardous materials include ACMs, surfaces painted with lead paint and hazardous chemicals in the laboratory. There may also be hidden hazardous materials not identifiable during the inventory inspection, for example drums or containers filled with unknown materials. Therefore, all demolition workers must be qualified personnel that understand and recognize the potential hazards that may exist. NAS Kingsville has a contract to dispose of certain amounts of hazardous wastes. Some of the hazardous wastes from the WWTP demolition, such as laboratory chemicals with a Material Safety Data Sheet (MSDS) and light bulbs, may be disposed of together with NAS Kingsville if the total amounts do not exceed NAS Kingsville's limit. Otherwise, there might be an extra disposal cost incurred. After a full inspection of hazardous wastes, the contractor should contact NAS Kingsville PWD Environmental to discuss disposal possibilities and procedures As an alternative, DRMO Environmental manages the disposal of hazardous property for DoD activities. Hazardous property is handled according to the same priorities as other property: reutilization within DoD, transfer to other federal agencies, donations to qualified state and nonprofit organizations and sale to the public, including recyclers. This process maximizes the use of each item and minimizes the environmental risks and the costs associated with disposal
5.1.1
Asbestos-Containing Materials
ACMs present unique hazards for removal and disposal. Asbestos is one of the most hazardous materials encountered during demolition activities. Some asbestos materials can break into fibers and float in the air. These minute fibers are not visible to the unaided eye. They pass through the filters of normal vacuum cleaners and reenter the air. Fibers inhaled from the air present a health risk. Asbestos has been used in a wide variety of products including, but not limited to, the following building materials:
• • • • •
Friable ceilings Floor tiles Roofing materials Textured paints Laboratory countertops
Recognizing ACMs can be difficult and requires the services of a contractor trained and experienced in asbestos removal projects. In general, the presence of ACMs may be suspected if the following conditions are observed: • • •
Friable cementitious sprayed-on or troweled material (acoustic plaster) Perforated, non-friable wallboard with friable sprayed-on material behind Friable, fluffy sprayed-on material (fireproofing) or friable fireproofing material on beams with pipe insulation below
In addition, there are certain areas where asbestos is likely to be present. Asbestos may be present in the backing of some vinyl sheet flooring. Fibers can be released if the backing on the sheet flooring is sanded. Demolition or renovation operations in facilities containing friable asbestos above certain quantities are regulated under the National Emission Standards for Hazardous Air Pollutants (NESHAP) regulations (40 CFR 61). These regulations specify asbestos emission limits and control procedures. Asbestos is also regulated by state and local authorities including the following: • • • • • •
Licensing of asbestos removal contractors Permitting of removal projects Air monitoring requirements Inspection requirements Restrictions on use of glove bags Enclosure requirements
A manual on asbestos control entitled Guidance for Controlling Asbestos-Containing Materials in Buildings, commonly referred to as the “Purple Book,” is available from the United States Environmental Protection Agency (USEPA). Only individuals specifically experienced, trained and licensed for asbestos demolition and removal operations should perform asbestos removal at the NAS Kingsville site. A full survey of possible sources of asbestos is required prior to demolition, which should include the following:
