Carrs of Sheffield. Type 2 Asbestos Survey of Unit 4 22 Orgreave Close Handsworth Sheffield South Yorkshire FYA0850/4.

Transcription

1 Type 2 Asbestos Survey of Unit 4 22 Orgreave Close Handsworth Sheffield South Yorkshire FYA0850/4 February 2002 Report Re-issued to Client on 17 th March 2004 RPS CONSULTANTS LTD 21 Bridge Road, Woolston, Warrington, Cheshire, WA1 4AT Tel: Fax: FYA0850/4 Page 1 of 25 Asbestos Survey

2 Report Classification: Asbestos Survey Report Status: Final Copy / Issue 2 Report Reference FYA0850/4 Name Signature Date Report by: Mr N. Brown Asbestos Consultant 24/04/02 Reviewed by: Mr. L. Stear Asbestos Quality Manager 17/03/04 FYA0850/4 Page 2 of 25 Asbestos Survey

3 Table of Contents EXECUTIVE SUMMARY 1. INTRODUCTION 2. BUILDING DESCRIPTION 3. SURVEY OBJECTIVES 4. LIMITATIONS OF SURVEY 5. ASBESTOS SURVEY FINDINGS REGISTER 6. RECOMMENDATIONS APPENDIX A - SURVEY STRATEGY APPENDIX B - LEGAL REQUIREMENTS APPENDIX C - RISK MANAGEMENT CODES APPENDIX D - GENERAL NOTES FOR INFORMATION APPENDIX E - SAMPLE LOCATIONS APPENDIX F - CERTIFICATES OF ANALYSIS APPENDIX G - UKAS SCHEDULES OF TESTING APPENDIX H - ASBESTOS MANAGEMENT AND CONTROL FYA0850/4 Page 3 of 25 Asbestos Survey

4 Executive Summary An employer has a duty of care under the Health and Safety at Work etc Act 1974 to ensure that the health of his employees is not put at risk due to either unsafe systems of work or by the nature/maintenance of his workplace. This is further addressed under the Management of Health and Safety at Work Regulations 1999 which place a duty on employers to assess all significant risks posed as part of their undertaking, including their buildings, and to take suitable steps to reduce these risks. Hence, if asbestos is present in the workplace, it is the responsibility of the employer to ensure, firstly, that he knows where it is, and secondly, that it is maintained in a safe and proper manner so as not to pose a threat to the health of his workforce. The handling and treatment of asbestos is covered under the Control of Asbestos at Work Regulations 1987 (as amended 1992 and 1998) and it s associated guidance and approved Code of Practice. A survey for asbestos containing materials was undertaken at Unit 4, 22 Orgreave Close, Handsworth, Sheffield in February The survey took the form of a non-destructive survey. Selected samples were obtained from materials which may contain asbestos, and the quantity and location of these materials throughout the building was noted. Asbestos containing materials were detected in the buildings in the form of: Unit 4, 22 Orgreave Close, Handsworth, Sheffield Asbestos Insulating Board, found located to high level ceiling in the Workshop. Asbestos Cement Guttering/Downpipes, found located externally to the building. Asbestos Cement Corrugated Roofing, found located externally to the building. High Risk Category A/B materials requiring immediate attention have been found during the course of this survey, as high level ceiling tiles to the Unit 4 Workshop, and can be seen detailed in the tables in Section 5.0 of this report. The locations and extent of all identified asbestos installations, can be seen detailed and illustrated in Section 5.0 and Appendix E of this report respectively. All remaining asbestos installation s were generally seen to be in a reasonably good condition, but will still require some remedial work such as paint sealing and labelling in due course. All locations where samples were taken, were labelled with a unique sample label, cross-referencing to descriptions and risk assessments detailed in Section 5.0. In accordance with The Control of Asbestos at Work Regulations 1987 (amended 1992 and 1998), it must be assumed that materials visually assessed as suspect asbestos contain amphibole asbestos, unless sampled to prove otherwise. Although every practicable effort was made to identify asbestos materials throughout the site, it is however, essential to note that this survey document cannot be considered exhaustive. The important issue being that concealed asbestos may be present and only identifiable during subsequent demolition works. Therefore, caution will be required during the course of any demolition or other works involving the disturbance of the buildings structure and fabric. There is a need to set in place a safe management system for the asbestos in the building. The client is advised not to solely read the asbestos register and results section as a definitive description of all asbestos based materials within the building. THIS REPORT SHOULD BE READ IN ITS ENTIRETY. FYA0850/4 Page 4 of 25 Asbestos Survey

5 1. Introduction RPS Consultants were requested by Mr Martin Carr of, to conduct a non-destructive survey to determine the presence of asbestos containing materials at Unit 4, 22 Orgreave Close, Handsworth, Sheffield: The brief of RPS Consultants can be summarised as follows; 1. To provide an experienced survey team to site, to carry out a full non-destructive survey of all accessible parts of the buildings. 2. To take samples of any materials suspected of containing asbestos and to analyse these at our UKAS (NAMAS) accredited laboratory, in accordance with MDHS 77 Asbestos in Bulk Materials. 3. To prepare a detailed written report showing all asbestos installations and the types detected, the condition of the material along with recommendations for the safe future treatment and management of the material. The survey was conducted by Mr N. Brown and Mr M. Goodwin of RPS Consultants Limited in February In addition to identifying asbestos materials, each occurrence of asbestos sampled is assessed and a priority rating in the form of numerical weighting and category is calculated (See Appendix C). The risk assessment has been designed to allow property and building managers to identify areas which require immediate attention, and to undertake long term planning and management of asbestos in such a way as to reduce the likelihood of employees and public exposure to a potentially carcinogenic material. Throughout the report the following terms and abbreviations may be used: MMMF AIB Chrysotile Amosite Crocidolite Amphibole This describes any man made mineral fibre, fibreglass, rockwool and other such material. Asbestos Insulating Board. Commonly known as white asbestos. Commonly known as brown asbestos. Commonly known as blue asbestos. Generic name for all asbestos types, excluding Chrysotile. This report is not intended as a specification for any proposed removal/remedial works. RPS Consultants Ltd can provide a detailed specification to comply with current asbestos regulations and associated codes of practice if required. The survey demonstrates the commitment of, to ensuring that their buildings are run and maintained with full regard to the health, safety and well being of their staff and visitors. Questions arising from the survey report should be directed, in the first instance, to the author of this report, who will be pleased to clarify any technical issues raised. FYA0850/4 Page 5 of 25 Asbestos Survey

6 2. Building Descriptions Units 4, 22 Orgreave Drive, Sheffiled is a single storey brick building. 3. Survey Objectives The objectives of the survey was to identify, where practicable, asbestos containing materials used in the building structure fabric, which if worked upon are regulated by the Control of Asbestos at Work Regulations 1987 (CAWR 1987), and Amendment Regulations 1992 and In particular, reference was to the following features, where present, throughout the building: Building fabric Insulation flues Soffits Suspended ceilings Riser cupboards Upstands, firebreaks and bulkheads Window sills Cement roofing Internal partitions Beam encasings Thermal encasings Sprayed Coatings Wall linings Fire doors Heaters Guttering 4. Limitations of Survey Whilst the survey team made every effort to examine all suspect materials, we cannot guarantee that all asbestosbased materials have been located. Some materials may well be hidden within the fabric of the building and may only come to light when the building is being demolished or refurbished. RPS Consultants cannot accept responsibility for any asbestos materials, which are hidden within the building fabric, which may be exposed during any such work. Particular difficulties are also associated with areas where ad-hoc alteration and refurbishment have previously been carried out, and where asbestos may be hidden behind cladding materials. The results of sample analysis refer specifically to the sample taken from the locations defined in the report. Experience has shown that materials can vary greatly in relatively short distances from sample points. It should not be assumed that materials similar in appearance to those sampled are asbestos-free. Risers, voids and structural ducts were inspected where readily de-mountable covers existed at access points. Asbestos fuse pads, rope and cement products may be present in all electrical switchgear, however, these could not be fully accessed during this survey for Health and Safety reasons. No equipment, machinery, or ducting was moved, opened up or examined during the survey. Where asbestos materials prevented further access to areas (e.g. above asbestos ceilings), the investigation was halted. Floor finishes such as linoleum and carpets etc., were not taken up. Manhole covers believed to be part of the drainage system were not accessed. To minimise damage to the fabric of the building, sub-surface examinations of walls, floors (such as concrete, solid plaster, resins and timber materials etc) and ceilings were not carried out. Fire doors frequently contain an inner layer of asbestos material for fire retardant purposes. The presence of such an inner layer is difficult to determine without causing significant damage to doors. Such sampling activities were FYA0850/4 Page 6 of 25 Asbestos Survey

7 therefore not undertaken unless specifically requested. Under normal circumstances the asbestos contained within a fire door does not present a risk to health but caution is advised during maintenance work, i.e. renewing locks etc. A limited inspection only has been carried out of pipework concealed by overlaying non-asbestos insulation. Inspection of pipework has been restricted primarily to the insulation visible. The presence of asbestos insulation debris/residue to pipework, which is not readily visible or would require the removal and replacement of overlying non-asbestos insulation, has been considered out of the scope of this survey. Access in ceiling voids, roof spaces and floor ducts was limited at the time of survey due to access restrictions and safety reasons. Remaining inaccessible areas can be seen indicated in Appendix E. Areas not inspected must be presumed to contain asbestos and treated as such until further investigation is completed. Drawings in Appendix E, should not be used for scaling purposes, but considered indicative only of sample and material locations. Should any further suspicious materials be encountered during refurbishment works, then these should be immediately reported to RPS Consultants Ltd, and the materials identified before work can proceed. Emergency Telephone Nos: Office Mobiles Nigel Brown See also Appendix D. FYA0850/4 Page 7 of 25 Asbestos Survey

8 5. Asbestos Survey Findings Register LOCATION (BUILDING): 22 Orgreave Drive, Hands Sheffield CLIENT: JOB NO: FYA0850 DATE OF SURVEY: 26/02/02 SURVEYED BY: NB & MG SAMPLE NO (Start at 01) AREA SURVEYED DESCRIPTION ROOM REF/NO. QTY MATERIAL ASBESTOS TYPE/RATING POSITION CONDITION ACCESSIBILITY EXISTING PROTECTION OCCUPANCY FRIABILITY ASBESTOS CONTENT TOTAL POINTS RISK ASSESSMENT CATEGORY 19 External Corrugated Cement Roof Sheets 250m2 A C Unsealed D 20 External Cement Downpipe (3 No) 18m A C Unsealed C 21 Male W/C Textured Coating to Ceiling Male W/C N/A G E N/A 22 Workshop High Level Ceiling Tile Workshop 250m2 B C Unsealed B 23 Paint Room Textured Coating to Ceiling Paint Room N/A G E N/A As20 Cement Guttering (2No) 50m A C Unsealed C As21 Female W/C Textured Coating to Ceiling Female W/C N/A G E N/A M 2 Lin.m No. A B C D E F G H Asbestos board greater than 1000kg/m 3 Asbestos board less than 1000kg/m 3 Sprayed asbestos Asbestos insulation/ lagging Supalux Plasterboard No asbestos Other asbestos A B C D E Brown (Amosite) Blue (Crocidolite) White (Chrysotile) Other No asbestos detected External Internal Airflow/ Heating Good Fair Poor Limited Medium High Sealed Partial Uncovered Low Medium High Low Medium High Trace Sig. Sub Cat A - is a high risk situation requiring immediate action Cat B - is a high risk situation requiring action ASAP Cat C - is a medium risk situation requiring regular inspection and maintenance Cat D - is a low risk situation FYA0850/4 Page 8 of 25 Asbestos Survey

9 6. Recommendations In light of the asbestos installations noted during the survey and in conjunction with the risk assessments, the following recommendations are made: 1. If asbestos materials are to remain it is important that they are managed properly. This should include a register of locations being kept (as provided by this report) and a maintenance system set up which requires that anybody carrying out work in the building should consult this register to ensure that the planned work will not disturb any encapsulated asbestos. The register should be updated as and when any asbestos is removed or treated and, the condition of the encapsulated asbestos assessed by visual examination (if possible) on a six monthly basis by a competent asbestos BIOH registered surveyor. RPS Consultants can provide a computerised asbestos register management database (Microsoft Access), to ensure the future safe management of the asbestos. This database will ensure compliance with the proposed Management of Asbestos Risks in Buildings Regulation, which will be incorporated into Regulation 4 of the Control of Asbestos at Work Regulations, which will place an explicit duty on people in control of premises to manage the risk from asbestos. 2. Label all asbestos installations as containing asbestos (Approved A Labels) or introduce a colourcoding scheme for asbestos and non-asbestos materials and highlight the need to consult the register before carrying out any work which may disturb it. 3. It is recommended that the following installations be encapsulated with a suitable elastomeric paint sealant in due course. Unit 4 High level ceiling tiles in the workshop The encapsulation works should be carried out adopting the following control principles. Prior to encapsulation, the surfaces must be clean, dry and free from surface-lying materials, which may impair adhesion. This should be achieved with the use of HEPA filtered vacuum cleaners and damp clean cloths. A mist coat of paint should then be applied using an airless spray gun set at low-pressure setting. The paint should not be applied by brush or roller. If impact damage is likely, then LPL Bonding Primer should be used. The primer should be allowed to cure over night. During the encapsulation works, the operatives involved should be equipped with appropriate Personal and Respiratory Protective Equipment. During the encapsulation works, the client s independent analyst should carry out appropriate leakage air testing, to ensure that fibre release is kept to an absolute minimum and that the airborne fibre concentrations remain below the clearance indicator level of Fibres Per Millilitre of Air. All waste should be treated as asbestos and be sealed within two layers of 1000-gauge polythene (or two asbestos waste bags) prior to removal to a sealed and lockable asbestos waste skip, which should be located on site. The transport and disposal of asbestos waste should be notified to the appropriate waste disposal authority. FYA0850/4 Page 9 of 25 Asbestos Survey

10 4. It is recommended in the near future, that a full environmental clean of the void behind the toilet in the first floor female W/C of Century House, be instigated under fully controlled conditions by a licensed asbestos removal contractor. Until such time that the void can be decontaminated, access should be denied to the void expect for essential maintenance works (e.g. pipe leakages). The void should be suitably sealed off and appropriate warning signs posted. Should any refurbishment work be required in the future, then an assessment should be made of the likelihood of disturbance of any asbestos materials in the building. If asbestos is likely to be disturbed, it is advised that a licensed asbestos removal contractor be employed to remove the asbestos prior to the commencement of the refurbishment. To conclude, it is recommended that any proposed works of whatever nature, be discussed with RPS Consultants to assess the levels of risk connected. FYA0850/4 Page 10 of 25 Asbestos Survey

11 Appendix A - Survey Strategy In order to accurately survey buildings for the presence of asbestos, it is advisable that representative samples are taken from installations suspected of containing asbestos. The survey has been conducted by a team of experienced surveyors following the code of practice - Sampling of bulk materials for asbestos (Institute of Occupational Hygienists, June 1988) and MDHS Surveying, Sampling and Assessment of Asbestos Containing Materials, July The samples will be carefully placed into two self-sealing polythene bags to prevent any possible chance of fibre release, and the sample area sealed with PVA solution, foil tape or a suitable proprietary filler/sealant where appropriate. Surfaces onto which dust or debris may fall, will be covered with an impervious sheet before the sample is taken (unless the surface itself is impervious) and be cleaned afterwards by a dustless method such as a damp cloth which is then double wrapped within two self-sealing bags. This package will then be disposed of as asbestos waste. In the unlikely event that any spillages should occur, then a HEPA filtered vacuum cleaner will be at hand along with a fibre suppressant spray canister for the immediate containment and clean up of the spillage. Any remaining debris will be cleared up under damp conditions and disposed of as asbestos waste in the appropriate way. A reassurance air test could then be carried out in accordance with the current edition of MDHS 39/4. Once the sample area has been reinstated to a safe condition, a unique RPS Consultants sample number label with the client name, surveyors name and date will be attached to the location. All sampling is undertaken causing minimum possible nuisance and potential risk to the health of the occupants and visitors of the building. As required under the Control of Asbestos at Work Regulations 1987 (As amended 1992 and 1998), dust release in sampling must be reduced to as low as is reasonably practicable and an assessment in respect of likely dust release will indicate the need for precautionary measures. This includes the use of personal protective equipment, isolation of the sampling area, wetting of the material to suppress dust release and an appropriate cleaning process. Sampling will not impair the structural integrity of the building or plant. Air testing carried out in the past has shown that fibre levels given off during asbestos sampling of the above nature typically gives results below the clearance indicator level of fibres per millilitre of air. Non Asbestos Materials Samples will be taken from each surface of each area surveyed, i.e. walls, floors, ceilings, doors and partitions in order to obtain a positive negative with regard to asbestos. Where there is considerable commonality of materials, one sample of each material will be taken and a note made in the report. All sampling equipment will be cleaned between samples with wet wipes to prevent cross contamination. The asbestos survey record and risk assessment sheet is to be completed for each sample location, including marked up plans and/or photographic records showing location and the full extent of the asbestos installation. If any installation is found to be in a poor condition giving a potential for the release of airborne asbestos fibres, then RPS Consultants will inform the person in charge of the premises as to the safe treatment of the material. Samples taken will be examined using a low power stereo binocular microscope (10x) at the RPS Consultants UKAS accredited laboratory. Sub samples of any fibrous content are then mounted in Cargille refractive index oils for inspection using polarised light microscopy (150x), under polarised and dispersion staining conditions as defined in the HSE guidance method MDHS 77 Asbestos in Bulk Materials. Occasionally, samples are not taken due to lack of safe access, because to do so would cause irreparable damage to the material or because materials of identical appearance have already been sampled. In these cases, the installations are referenced as strongly suspected of containing asbestos. FYA0850/4 Page 11 of 25 Asbestos Survey

12 There are three types of asbestos survey carried out. TYPE 1 Presumptive Survey The purpose of this survey, is to locate as far as reasonably practicable, the presence and extent of any suspect asbestos containing materials in the building and assess their condition. No samples have to be taken to verify the presence of asbestos. A material has been presumed to be asbestos unless there is sufficient evidence to suggest that it is not an asbestos containing material. The following reasoned arguments have been used to suggest that a material does not contain asbestos. - Non-asbestos substitute materials were specified in the original construction or subsequent refurbishments. - The product was very likely to contain asbestos or have asbestos added (e.g. wallpaper, plasterboard etc.) - Post 1985 construction for amphibole containing asbestos. - Post 1999 construction for Chrysotile products. Where materials have the visible appearance of asbestos or are known to have been manufactured using asbestos they have been marked as Strong Presumption. Note. A presumptive survey will inevitably result in non-asbestos containing materials being presumed to be asbestos. We accept no liability for the additional costs and duty incurred in managing this presumption. We recommend that sampling is carried out as far as practicable. TYPE 2 Sampling Survey The purpose and procedure adopted in this survey are the same as for a Type 1 survey, except that representative samples are collected and analysed for the presence of asbestos. If a material sampled has been found to contain asbestos, other similar homogenous materials may have been strongly presumed to contain asbestos. A strategy has been established to keep to a minimum the number of bulk samples taken for analysis and therefore minimise the cost of the survey. The strategy employed is a combination of a visual inspection and sampling of bulk materials. During the survey where a material was suspected to contain asbestos, a bulk sample was taken for analysis. In areas where there were substantial quantities of visually uniform materials, a small number of samples were taken as being representative of the whole area. Therefore, visually similar materials in the same area must be assumed to contain asbestos. Where the survey reports a material as NON-ASBESTOS by visual inspection and with no analysis of samples (e.g. recently lagged pipework covered with metal cladding), then the client should exercise caution in interpreting the results. It is IMPORTANT to stress that in such circumstances, there may be residues of asbestos trapped under newly applied lagging (e.g. from previous asbestos removal carried out in the past). It is not usually practicable to detect such residues until major disturbances of the material takes place within the scope of a destructive survey. Therefore the surveying company responsible cannot accept liability for the detection of such residues in this survey. If the client undertakes major alterations in a specific area where it may be possible that residual asbestos may be found, than it is recommended that further investigation of the specific area be carried out before the start of the work. FYA0850/4 Page 12 of 25 Asbestos Survey

13 TYPE 3 Intrusive Survey This type of survey is to establish and describe as far as practicable, all asbestos containing materials in the building and may have involved destructive inspection techniques. The volume of asbestos materials has been established but no assessment of condition has been made other than to highlight areas of significant damage or debris. On all types of survey, where NO ACCESS is used, it indicates that the area specified was not accessible at the time of survey. The client is to be alerted to the possibility of there being asbestos materials in the area. This may therefore require further investigation. Only those areas defined are covered in this report. Those areas not identified should be considered as not accessed for the purpose of this survey. FYA0850/4 Page 13 of 25 Asbestos Survey

14 Appendix B - Legal Requirements Work with all asbestos containing materials is controlled under the Control of Asbestos at Work Regulations 1987 (as amended 1992 and 1998). The object of these regulations, which are made under the Health and Safety at Work etc. Act 1974, is to minimise worker s exposure to asbestos fibre within the work place. This is further addressed under the Management of Health & Safety at Work Regulations 1999, which place a duty on employers to assess all significant risks posed as part of their undertaking, including their buildings, and to take suitable steps to reduce these risks. Hence, if asbestos is present in the workplace, it is the responsibility of the employer to ensure, firstly, that he knows where it is, and secondly, that it is maintained in a safe and proper manner so as not to pose a threat to the health of his/her workforce. The Health and Safety Executive have produced two approved Codes of Practices and a number of guidance notes so that building managers, employers, employees and contractors can achieve compliance with the requirements of the regulations. The substantial majority of projects which involve work with asbestos spray coating, thermal insulation materials and asbestos insulating boards, require the contractor or persons carrying out the works to be licensed under The Asbestos (Licensing) Regulations 1983 as amended Unless the work is short-term repair work in premises occupied by the employer of self-employed, asbestos removal by an unlicensed contractor may be an offence. The building owner has, however, ultimate responsibility under the Health and Safety at Work Act There is no legal requirement to remove any asbestos material, which continues to perform the function for which it is installed. However, it is recommended that any material in poor condition should be removed or sealed appropriately. All asbestos materials left in-situ should be labelled accordingly, and all maintenance staff/personnel who might possibly come into contact with this material, should be notified and informed to avoid disturbance of this material. The principal statutory and regulatory requirements are:- The Health and Safety at Work etc. Act 1974 The Management of Health & Safety at Work Regulations 1999 The Control of Asbestos at Work Regulations (CAWR) 1987 as amended by the Control of Asbestos at Work (Amendment) Regulations 1992 and the Control of Asbestos at Work (Amendment) Regulations Approved Code of Practice "Work with asbestos insulation and asbestos insulating board"(3rd Edition 1999). Approved Code of Practice "The Control of Asbestos at Work"(3rd Edition 1999). Asbestos (Licensing) Regulations 1983 as amended by the Asbestos (Licensing) (Amendment) Regulations Special Waste Regulations 1996 Construction (Design and Management) Regulations Working with asbestos cement HSG 189/2, In order to comply with Regulation 5 of the Control of Asbestos at Work Regulations, a detailed Plan of Work and Risk Assessment should be prepared by the employer engaged in asbestos removal, to ensure workers exposure to asbestos fibres is estimated and appropriate controls put in place to ensure that this exposure is minimal. FYA0850/4 Page 14 of 25 Asbestos Survey

15 Work with asbestos cement and other asbestos containing materials such as resins, rubbers, and plastics are exempt from the Asbestos (Licensing) Regulations 1983, and therefore it is not mandatory to employ licensed asbestos removal contractors to remove this material. However, there is still a requirement under the ACOP "The Control of Asbestos at Work" to undertake a risk assessment, although if the work is straightforward and if the anticipated exposure to asbestos is low, the assessment does not have to be in a written form. Practical guidance on achieving the standards required by the ACOP "The Control of Asbestos at Work" is provided by the HSE in their Guidance Note HSG189/2 Working with asbestos cement If an employer elects to use his own employees to carry out work with asbestos under the Health and Safety at work, etc., Act 1974, he has a duty to ensure the health, safety and welfare of his employees by providing such information, instruction, training and supervision required to maintain a safe system and safe place of work. Therefore, in addition to providing training on asbestos hazards and the appropriate control measures, which will be required, the employer also has to supply his staff with the appropriate safety equipment, i.e. respiratory protection, protective overalls and decontamination facilities. Asbestos waste containing 0.1% w/w asbestos in the waste is classified as Special Waste and must be consigned to a site, which is authorised to accept asbestos waste. Special Waste Regulations 1996, Schedule 2 part 3 applies; this is enforced by the Environment Agency in England and Wales and the Scottish Environmental Agency in Scotland. In most situations, particularly because of the requirements to dispose of crocidolite asbestos as a Special Waste, it is often more cost effective to use a licensed asbestos removal contractor. RPS Consultants therefore recommend that asbestos cement is removed by a licensed asbestos contractor, to ensure full compliance with legislation. FYA0850/4 Page 15 of 25 Asbestos Survey

16 Appendix C - Risk Management Codes The risk assessment system that has been adopted, concentrates solely on the likelihood of fibre release from asbestos based materials into the breathing zone of persons at risk. This is the single most important factor in assessing the likelihood of that person being exposed to fibre concentrations injurious to their health. To arrive at a risk category the following factors are each given a numerical score: Position: Condition: Accessibility: Friability: Treatment: Extent: Whether external, internal or in a hot environment Whether the material is damaged and the level of damage How easily the material can be disturbed accidentally How likely the material is to give off significant levels of asbestos fibres if disturbed How well the material is sealed or encapsulated The amount of asbestos present in the material The scores for each factor are added to give a risk value. Each risk category contains a range of values. In some situations, it may be useful to undertake measurement of atmospheric fibre concentrations; however, these levels are open to vast variations dependent upon conditions and may well be below the concentration measurable using optical microscopy methods but still be above local background environmental issues. Although recommendations, which are issued, will vary according to the situation, it is desirable that some standardisation of action is achieved. It is therefore proposed that the following guidelines are adopted. PRIORITY RATING RECOMMENDATIONS AND COMMENTS Category A. 18+ It is likely in situations with such a high rating, that persons are currently being exposed to some level of asbestos fibre contamination. This exposure will vary according to location conditions - for example, the intensity of use of a heating system or the nature of airflow and movement around a damaged ceiling. It may be possible to clarify the exposure level by use of atmospheric fibre counts. However, the concentrations involved are likely to be low in comparison with occupational exposure limits. Due to the potential exposure, areas or situations, which fall into this category, should be regarded as a matter for concern. In most circumstances, immediate plans for removal of the asbestos concerned should be implemented, or at least the rapid sealing of the affected area. Category B inclusive Situations within this category are potentially hazardous and still warrant remediation in the short term in that any slight deterioration in one of a number of contributory factors will result in unacceptable deterioration within a short passage of time. In these situations, it is therefore necessary for the asbestos to be removed on a programmed basis, but within a specified timescale. It is recommended that the maximum period should be 1 year and that; in the meantime, emergency repair and sealing operations should be undertaken where any deterioration or damage occurs. Category C inclusive Situations within this category do not pose any imminent risk and the likelihood of fibre release is low under existing conditions. It is recommended that material falling within this category should be regularly assessed to monitor the condition, as potential deterioration will occur with passage of time. It is recommended that situations within this category should be inspected on a 6 monthly basis to ascertain any change in circumstances, requiring reassessment of priority rating into Category B. FYA0850/4 Page 16 of 25 Asbestos Survey

17 Category D. Less than 9 Situations within this category are of low priority. The situation should be assessed on the basis of a 2-year inspection cycle to ascertain any change in category. FYA0850/4 Page 17 of 25 Asbestos Survey

18 Appendix D - General Notes for Information The following is a summary of building features and materials commonly found to contain asbestos. It is often extremely difficult or impossible to detect these installations, or positively identify the presence of asbestos within them, without conducting a destructive survey or obtaining samples for analysis. Also included are areas not routinely examined for safety reasons. This summary is not a complete list but is intended to emphasise the importance of a full asbestos survey and building register, and to reinforce the requirement for care and attention to be taken before and during refurbishment or demolition works. BUILDING FEATURES Ceiling Voids Ceiling voids are not checked in occupied areas for safety reasons. Entering ceiling voids carries a high risk of fibre release from the disturbance of any asbestos material within it, which may contaminate the areas below. In general, ceiling voids may only be checked in unoccupied areas where safe access is available. Wall Cavities May be completely blocked or bricked in. Detected only if shown on building construction plans or during demolition. Risers Often completely blocked or bricked in. May only be detected if shown on building construction plans or during demolition. In certain circumstances, entering riser shafts can carry a high risk of fibre release from the disturbance of any asbestos material within it, which could contaminate adjacent areas. An assessment will be made of the risk and risers may only be checked in unoccupied areas where safe access is available. Floor Voids May be completely blocked or bricked in. Detected only if shown on building construction plans or during demolition. Windows Asbestos panels may be located above or below windows, which are covered with wallpaper, painted, or covered with hardboard/plasterboard or painted glass. Often can only be examined externally where safe access is available. In addition, asbestos may be present in the form of glazing mastic. Positive identification of this type of material is not possible without sampling and analysis. Columns Often completely blocked or bricked in. If the integrity and safety of structural columns are at risk they will not be examined. Plaster Ceilings If access above cannot be made and destructive techniques cannot be applied, then the areas above cannot be checked. External Areas These will not be checked if safe access cannot be achieved. Small or Confined Spaces These will not be checked if safe access cannot be achieved. FYA0850/4 Page 18 of 25 Asbestos Survey

19 Restricted Access Secure areas subject to restricted access will not be checked unless special arrangements have been made through the client within the remit of the survey. Trunking/Ductwork May contain asbestos internally as ventilation linings or gaskets, which are not visible, until the trunking is disassembled. Often found within ceiling voids (see above). Lift Shafts Doors and shaft may be lined with asbestos. Lifts will not be checked for safety reasons unless they are known to be isolated. Boilers May contain asbestos internally, which is not visible until dismantled. Refrigerators, Cold Rooms, Safes and Kilns May contain asbestos internally, which is not visible until dismantled. Heater Units Sealed heater units are often lined with asbestos, or have insulation blocks containing asbestos within them, but cannot be examined until dismantled. Mechanical Equipment These are not examined for safety reasons as machinery may start at any time and are often sealed, selfcontained units. POTENTIAL ASBESTOS INSTALLATIONS Thermal Insulation Often found within ceiling voids, wall cavities, risers, floor voids (see above). Thermal insulation to pipes etc. which contains asbestos is often not uniform in its application or composition. Although a representative number of locations relative to the extent of the material may be examined and found to be non-asbestos, it is possible that asbestos has been incorporated in a number of isolated locations. An inner skim of asbestos pipe insulation or paper lining may also be found beneath a non-asbestos outer layer. Lagging construction of this type is often difficult to identify without sampling and analysis. Sprayed Coatings Often found within ceiling voids (see above). Sprayed coating material, which contains asbestos, is often not uniform in its application or composition. Although a representative number of locations relative to the extent of the material may be examined and found to be non-asbestos, it is possible that asbestos has been incorporated in a number of isolated locations. In areas where sprayed coating is found on ceilings or structural steelwork, it is often also present as overspray behind plaster applied to walls and beneath the floor screed. This cannot be detected without applying destructive techniques. May be a significant hazard during demolition or major refurbishment works. Plaster and Textured Coatings/Artex Plaster, paints and textured coatings applied to walls, ceilings or structural beams etc. contain asbestos. Positive identification is not possible without sampling and analysis. The removal of this material is covered by the ACoP, Work with asbestos insulation, asbestos coating and asbestos insulating board and should be undertaken by a contractor licensed to work with asbestos. FYA0850/4 Page 19 of 25 Asbestos Survey

20 Fire Break Boards Original asbestos boards may be covered with Supalux or plasterboard to increase fire ratings at a later date. Often found within ceiling voids and floor voids (see above). Wall Panels Often covered with wallpaper, painted, or covered with hardboard/plasterboard. Shuttering May be hidden by new walls, covered with wallpaper, painted or plastered over. Expansion Joints and Cement Sleeves These may have been used in the building but are usually concreted over as part of the finishing works. These can only usually be detected if they are mentioned in the building construction plans or when demolition takes place. Flange Gaskets Not usually visible until the pipework is dismantled. All gaskets are usually presumed to contain asbestos and to be disposed of as a Special Waste when replaced during the course of routine maintenance. Floor Tiles Thermoplastic floor tiles often contain asbestos within the bonded material, or it may be contained within the adhesive used to affix the tiles. The risk of fibre release under normal occupation is minimal. All floor tiles are usually assumed to contain asbestos until sampled. When removed, they must be disposed of as a Special Waste. Roof Slates Very similar in appearance to natural slates. These will not be checked if safe access cannot be achieved. Roofing Felt/Damp Courses Bituminous products may contain asbestos in low concentrations. Without sampling and analysis, it is very difficult to determine the presence of asbestos in these products, but the risk of fibre release is extremely low. Wall Fixings Loose asbestos was often used as a plugging material for wall fixings. Usually covered with wallpaper, painted or plastered over. Debris Often found within ceiling voids, wall cavities, risers, floor voids (see above). Small amounts of asbestos debris are very difficult to locate and may be present at any location. General debris containing asbestos cannot be identified without sampling and analysis techniques. Encapsulated Debris Small amounts of debris may have been painted over after historical removal works during refurbishment. This is a common occurrence in plant rooms. Asbestos Materials Behind Known Asbestos Asbestos ceilings and panels etc. may conceal further asbestos materials behind, for example an asbestos lagged pipe. This would not be known until the ceiling or panels were removed. FYA0850/4 Page 20 of 25 Asbestos Survey

21 Non-asbestos Insulated Services Services re-insulated with MMMF, Vegetable fibre, Cork, Polystyrene, etc. may have residual asbestos insulation adhering to their surface. It is not possible to check all surfaces unless all of the new insulation is removed. However, exposed sections, valves, etc. will be examined where possible. FYA0850/4 Page 21 of 25 Asbestos Survey

22 Appendix E - Sample Locations (1 No. Attachment Page) FYA0850/4 Page 22 of 25 Asbestos Survey

23 Appendix F - Certificates of Analysis (1 No. Attachment Page) FYA0850/4 Page 23 of 25 Asbestos Survey

24 Appendix G - UKAS Schedules of Testing (3 No. Attachment Pages) FYA0850/4 Page 24 of 25 Asbestos Survey

25 Appendix H Asbestos Management and Control EMERGENCY ACTIONS FALL OF ASBESTOS CREATING IMMEDIATE HEALTH RISK FROM DEBRIS AND INSULATION MATERIAL OR FOLLOWING FIRE In the event of an emergency the following actions should be taken: a) Do not attempt, under any circumstances to try to clean or sweep up the area. b) Immediately isolate the area by positioning physical barriers at a distance of 15 to 20 metres (where practicable) from the affected area. c) Inform all personnel of the asbestos hazard d) Immediately contact a Licensed Contractor RPS Consultants Limited, for remedial action to be taken in order to make safe the are on one of the following numbers: Telephone: Fax: Nigel Brown: e) RPS Consultants Limited will then assess the situation and take the following course of action: 1) Assess as to whether further containment is required i.e. polythene enclosure. 2) Where possible, vacuum contaminated floor area. Where it is impracticable to vacuum, debris to be thoroughly dampened prior to removal and placement in asbestos waste bags. 3) Area from which fall has occurred to be checked for extent of damage. Remedial action to make safe, temporary seal or more extensive repair. 4) Area to be thoroughly decontaminated and clearance air samples to be taken. FYA0850/4 Page 25 of 25 Asbestos Survey