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Integrated Waste Management Disaster Plan Chapter 2: Pre-Disaster Assessment (Steps 1-6) |
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Background: Performing an assessment or inventory of your resources is the first step in determining your jurisdiction's preparedness to effectively handle debris generated after a disaster. The purpose of this assessment is to identify the kind of debris management strategy needed and diversion programs to consider. It will also show the areas that need to be developed in order to prepare an effective disaster debris response. More detailed information on specific diversion programs is contained in Chapter 3, Debris Management Programs. Contents: This chapter contains 12 sections and is divided into steps one might follow to develop a debris management strategy.
Step 1: develop local checklistsChecklists: Developing checklists in advance of a disaster can save valuable time in establishing debris management programs as well as in directing the overall recovery operations. These checklists will be specific to a jurisdiction's situation and will reflect the resources available and those that will be needed. Primary checklists: The primary checklists that need to be developed are listed below. Some of these, however, are more applicable to the city or county emergency services staff. In this case, check with your city/county OES to see what has been developed. The other checklists or resource inventories will probably be developed by the staff responsible for establishing the diversion program, i.e. the city/county Solid Waste or Recycling Coordinator. Much of this information can be developed as each step in the following assessment is completed . Emergency services and response
Facilities
Markets
Temporary storage sitesMutual aid agreementsContracts and franchise agreementsOrdinancesStep 2: conduct a disaster event analysis and waste characterization analysisPurpose: Identify the types of disaster(s) your city/county is likely to encounter. Different disasters will generate different types and amounts of debris, which in turn will affect the selection of a diversion strategy. For each disaster event, evaluate its potential severity and your community's vulnerability to such a disaster. Actions to take:
Disaster event table: The table below gives a general idea of the types of materials typically generated after a particular disaster.Disaster event analysis
Waste characterization of disaster debris Project types and amounts of debris: Project the amounts and types of waste likely to be generated after a disaster. This will be one indicator of the types and scope of diversion programs that should be planned. This will be your "best guess" based on the variables below:
Purpose: Although this waste characterization will only provide a general idea of the materials to be handled, some assumptions can be made about the facilities, processing, staffing, equipment, and markets that will be needed. List of materials: The list below shows those materials typically generated after a disaster. Generally, the post-disaster waste stream is composed of construction and demolition materials and personal belongings.
Materials (cont'd):
Other debris: Keep in mind that other debris will be generated during the course of recovery . Examples include plastic water bottles and plastic sheeting associated with mass care (i.e. tent shelters); sand bags and dirt remaining after a flood or wildfire or used for erosion control. Another factor can be the additional waste generated in the long-term from construction and renovation activities as well as ongoing demolition projects. Step 3: identify temporary storage sitesPurpose: This assessment will indicate whether adequate temporary storage space for the projected types and amounts of disaster debris is available, the options for diversion programs given the ability or inability to store the materials, and example tasks to complete in order to secure storage areas. Refer to Chapter 4 for more detailed information on temporary storage sites. Actions to take:
When to use: The better strategy is to transport the disaster debris directly to the landfill or recycling/processing facility rather than using a temporary storage site. In this way, labor and transportation costs are paid once, whereas hauling to the temporary storage site and then hauling again to the recycling facility and increase costs significantly. And, FEMA may not pay for these additional costs. Prior to establishing a temporary storage site, contact FEMA to obtain prior authorization and to ensure reimbursement for these program costs. Refer to Chapter 6, Reimbursement, for more information. Emergency waiver of standards regulation: The Board has adopted the emergency waiver of standards regulations, which are found in California Code of Regulations, Title 14, Division 7, Chapter 3, Article 3, sections 17210 through 17210.9. The regulations allow Local Enforcement Agencies to issue emergency waivers to solid waste facility operators, upon request, in the event of a state of emergency or local emergency. The waiver grants an operator temporary relief from specific state minimum solid waste standards or terms or conditions of the operator's solid waste facilities permit. The waiver applies to the following:
A waiver can also be granted to an operator for the establishment of a locally-approved temporary transfer or processing site, if authorized by the LEA. Criteria: Examples of evaluation criteria for establishing temporary storage (pre-staging) areas are included in Chapter 4, Temporary Storage Area. List sites: Prepare a list of potential temporary storage sites based upon the types and amounts of materials projected to be collected, processed, and transported. Check on available public and private sites for use as temporary storage, recycling, or disposal sites. Explore the possibilities of using city/county-owned land, state lands, and private property. Private property will probably be the last resort given the liability associated with this. Examples: Examples of sites to consider include the following:
Do beforehand: Securing storage sites is best done before a disaster strikes so that arrangements, such as leases and permits for the land, can be accomplished quickly. Realistically, if sites are not designated in advance, it is unlikely that a jurisdiction will have enough time to do so when trying to manage the disaster recovery at the same time. Step 4: determine end-uses and markets for materials collectedPurpose: This assessment will provide an overview of the markets needed, the processing requirements for the identified end-uses, and the type of facilities needed to handle the wastestream. For purposes of this report, markets are considered outlets for raw or processed materials. End-uses are the products themselves that are made from the disaster debris e.g., crushed concrete, soil amendment. Actions to take:
Determine end-uses End-uses: Determine end-uses for materials before processing them. If materials are processed before the end-uses are determined, this may preclude their use for certain applications, thereby limiting their marketability.For example, if concrete is ground too finely or is mixed with wood or brick, it cannot be used for certain road applications. Market spec's: Ensure that processed materials will meet market specifications. For example, most crushed asphalt and concrete is used as road base on Department of Transportation (CalTrans) or local public works road projects. Most local governments, particularly in northern California, rely on CalTrans specifications for road materials. Many local governments in southern California rely on specifications in the Greenbook. (For a more detailed discussion of road base specifications, see the fact sheet Recycled Aggregate in Attachment A).If specifications are not met, the material will be rejected. However, more relaxed standards may apply when using the processed material for less structural applications such as temporary roads at landfills or parks. Also refer to Attachment B for a more detailed discussion of processing techniques and equipment. Identify markets Markets: Determine if established markets exist for the materials that will be collected. Identify the recyclers, processors, and brokers who can divert the designated materials and the amounts they can handle. This is best done beforehand so that arrangements can be made quickly and the materials moved off site immediately.Potential markets: Consider the following as possible markets for the disaster debris:
Markets used: The following table provides examples of the markets used by a number of jurisdictions for disaster debris:
Identify market barriers Barriers: Identify the market barriers to recycling the collected materials. They can include:
Limit materials collected: Based on the analysis of market barriers, a jurisdiction may decide to limit the materials to be collected in its diversion program, thereby increasing the likelihood of recycling those that are collected.Example: The City of Santa Clarita experienced a 97% diversion rate of their disaster debris after the 1994 Northridge earthquake. In large part, their success can be attributed to two factors:
Step 5: identify facilities and processing operationsPurpose: This assessment will help identify the recycling, reuse, and disposal facilities available or needed to process and/or store the disaster debris. Processing operations include wood chipping, concrete and asphalt crushing, and drywall recycling. Given the projected amounts and types of debris anticipated, assess whether these facilities can handle the debris quickly, particularly if there are limited temporary storage sites. Actions to take:
Facility types: The following facility descriptions are used throughout this document.
Assessment factors: To assist in the facility capacity assessment, determine the following for each facility. This should give an indication of whether to modify existing facilities or establish new facilities.
Site capacity: From the information gathered during the preliminary damage assessment, a jurisdiction should be able to determine whether the existing recycling facilities have the capability to process the expected volumes and types of debris and whether landfills have sufficient capacity for the expected volumes of debris. If not, consider the following:
Mix of facilities: Identify any mixed or segregated construction and demolition recycling facilities in the area. If one is not available, consider establishing one, particularly if the materials collected will not be source separated.To keep the average recycling tip fees at the lowest possible level, maintain a mix of source separation recycling facilities and mixed debris recycling facilities . Negotiate in advance: Negotiate with franchises, haulers, and facility operators/owners in advance to ensure that the facility will:
Contingency plan: In the event that major roadways are closed or landfills and recycling facilities are closed or damaged, develop a contingency plan to deal with the disaster debris until the roads and facilities are open.
Step 6: identify processing techniques and barriersIntroduction: This section presents an overview of the barriers to recovering or reusing the construction and demolition (C&D) material and of the equipment and processing techniques involved in structured demolition and materials recovery. Purpose: This information can help jurisdictions plan and contract for the removal of structures. It will also help in the selection of equipment and processing techniques based on the materials to be processed and their end-uses. Refer to Attachment B for a more detailed discussion on processing techniques and equipment. Actions to take:
Processing strategy
Composition refers to the types of materials and the form in which it is received by the processors, either clean or mixed. Presort: Presort all C&D materials as much as possible by unloading similar materials on specific areas, picking with front-end loaders, etc. Bulky items such as furniture, white goods, and major pieces of rubble or wood are often presorted. Equipment: For clean, sorted debris, the reduction equipment, such as impactors, jaw crushers, hammermills, and stump grinders, can provide quality end products. Evaluate costs: With mixed loads, it is important to evaluate the cost of separation versus land disposal. Certain loads may be so contaminated or mixed that separation may not be economical. Select a processing strategy [3] Basic strategies: There are two basic C&D processing strategies. The processing strategy to use depends on the nature of the mixed material.
Identify processing barriers Identify requirements: Identify processing requirements or barriers for collected materials. Determine the processing barriers that might limit the processing capability and hence the marketability of the collected materials. Contamination: Contamination of materials is one of the biggest barriers that results in the landfilling of materials. Depending on the processing equipment being used, certain contaminants (nails in wood, rebar in concrete, wood mixed with the concrete) can preclude the materials from being recycled at all. In addition, the debris may contain paint or asbestos that could be fragmented if crushed and would contaminate large amounts of C&D materials. To minimize contamination, source separate the materials upon collection, and ensure that they remain separated during transport and processing. For more info: For more information on handling asbestos, refer to Attachment F.
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Last updated: June 03, 2008 Disaster Preparedness and Response http://www.ciwmb.ca.gov/Disaster/ Office of Public Affairs: opa@ciwmb.ca.gov (916) 341-6300 |