Document a1dye6JE7Qe5YvDR3g0jx4x5R

PLAINTIFF'S EXHIBIT ( August 18, 1986 Shell Oil Company D. P. Atwood P. M. Bryant L. V. Csengery A. D. Ditmar G. T Goll Shell Pipe Line Corporation C. H. Long SHELL OIL COMPANY One Shell Plaza P. 0. Box 4320 ENVtRomlTiE IWE, ifW-.i ; /{. v^, Return Document to File Record Coov in File Information Copy Record Copy in jFRftySiuMJ Copy: /Ju6f\ Circulate: ____________ SUBJECT: HS&E Procedure for Industrial Hygiene Monitoring and Data Evaluation REF: Shell Oil Company/Shell Pipe Line Corporation Service Agreement Shell Oil Company has been conducting industrial hygiene monitoring for a number of years. During that time there has been an increase in the demands and requirements on the data. It is timely to publish a common set of principles and practices which locations and Head Office can use in administering industrial hygiene monitoring programs. A joint Head Office and location task force has completed a draft HS&E Procedure which i is attached for your review and approval. An HS&E Procedure by definition (attached) requires the approval of the responsible HS&E Department Manager and in this case the functional Health & Safety Managers. The procedure defines a method initially to determine compliance with Shell Internal Standards (SISs) and OSHA Permissible Exposure Limits (PELs). The procedure also includes provisions for periodic monitoring if the exposures approach or exceed the SISs or PELs. We believe the procedure will provide the assurance necessary to determine compliance or non-compliance. The goal is to make accurate decisions with the minimum required amount of data. The procedure, designed to integrate past and current monitoring programs, has been reviewed by manufacturing locations at two different stages of its development. It utilizes available capabilities of the Health Surveillance System. It provides a systematic approach to interpreting past data and to planning monitoring programs. The procedure is more directly applicable to those locations with on-site health and safety staff. Often, HS&E-Industrial Hygiene Services (IHS) provides monitoring when requested by locations without monitoring expertise. In these cases, IHS will apply the procedure with, if necessary, modifications mutually agreeable with the location. CAD8623001 LAM 000717 DPMC-16419 2 We would appreciate your response by September 3. Please call me or Jerry Ransdell if you have any questions or comments. Manager Safety & Industrial Hygiene JDR:BVR Attachment cc - Task Force Members W. B. Austin / W. S. Gleason J. D. Ransdell A. F. Schmit (Chairman) P. J. Snyder HS&E-IS (2) / CAD8623001 LAM 000718 DPMC-16420 Attachment HS&E Procedure A particular way of accomplishing an activity which has been developed to assist effective implementation of that activity throughout Shell. Procedures may be modified to adapt to needs of a specific organization by agreemment between that organization and the responsible HS&E department manager and the functional managers responsible for the particular health, safety or environmental issue. When the procedure could have a significant business impact, concurrence of the Plans, Support and Integration Manager is required. CAD8606301B LAM 000719 DPMC-16421 HS&E PROCEDURE FOR INDUSTRIAL HYGIENE MONITORING & DATA EVALUATION I. Introduction Industrial hygiene monitoring has been routinely conducted at Shell Oil Company locations to measure chemical exposures. The monitoring typically involves personal sampling of the potentially exposed employees but may also include area and source air sampling. The monitoring is conducted for one or more of the following reasons. A. To comply with monitoring requirements in OSHA Health Standards (Asbestos, Ethylene Oxide, Vinyl Chloride). B. To evaluate compliance with OSHA Permissible Exposure Limits (PELs). C. To evaluate compliance with Shell Internal Standards (SISs). D. To evaluate conformance with other, valid, published exposure limits (e.g., ACGIH). E. In support of Shell Medical Surveillance Programs (Benzene, Asbestos). F. To investigate special concerns such as: 1. Employees with recognized health effects 2. Medical concerns 3. Employee Complaints 4. Exposure levels of materials whose toxicologic significance may be changing 5. Regulatory changes and requests for information F. To evaluate the effect of an engineering or procedural change on exposure level. G. In response to an emergency (spill, leak). H. In support of epidemiology studies. Most existing OSHA Standards (29 CFR 1910.1000) merely specify a PEL above which employees should not be exposed. There are no formal monitoring requirements for the approximately 400 chemicals in this category. CAD8606301B LAM 000720 DPMC-16422 2 II. Purpose Initially industrial hygiene monitoring was conducted to evaluate compliance with allowable exposure limits (i.e., PELs, SISs) and to maintain surveillance through periodic monitoring. While this basic purpose remains, the demands on our industrial hygiene monitoring program have expanded. The monitoring data have been used increasingly to arrive at decisions regarding capital expenditures for exposure control, in submissions to trade organizations and Federal agencies to influence regulatory activity, and for in-house risk assessments to name a few of the major uses. Because of the significant decisions that rely on monitoring data, it is essential to continue emphasis and quality in our programs. For these reasons, a procedure consisting of basic principles and direction in the conduct of I.H. monitoring and evaluation of I.H. monitoring data has been developed. The procedure addresses: A. How many samples are needed to make a decision? B. How should the data be evaluated? C. What is the right amount of repeat or periodic monitoring? The procedure provides a method for conducting and interpreting I.H. monitoring. It is based largely on our experiences and judgements and makes use of limited statistical analyses. Its development also included extensive review of published sampling strategies and statistical workups by NIOSH, OSHA, academia, and industry. Where practical and beneficial, information and methods from these sources were incorporated. Since there is continuing research and study on the subject of I.H. sampling strategy, the procedure will be periodically reviewed for change and improvements. The OSHA sampling strategy in many of its health standards is based on the probability of exceeding the PEL or an action level (usually one-half of the PEL). This procedure makes use of this concept, but more fully defines the minimum sampling requirements to improve the probability of correctly judging compliance. Our goal is to make accurate decisions with the minimum required amount of data. For evaluating monitoring data, this procedure assumes substantial compliance is achieved when exposures are at or below the OSHA PEL or Shell Internal Standard at least 95% of the time. This determination is included in the definition of the Shell Internal Standard and it is also the criterion NIOSH has previously recommended. The monitoring strategy in this procedure assumes the industrial hygienist or industrial hygiene technician uses his best judgement in accounting for variables such as weather, seasonal changes, process upsets, differences in workshifts. The procedure is considered a minimum. Additional samples may be required to evaluate numerous variables which may exist, or in some CAD8606301B DPMC-16423 LAM 000721 3 circumstances to comply with specific OSHA Health Standards. A flow chart illustrating the procedure has been attached. III. Initial Monitoring Strategy -- If industrial hygiene monitoring has not previously been conducted or if significant changes in the work place or work practices have occurred and previous data may no longer be representative, then the following steps are appropriate. A. Qualitative Assessment 1. Identify jobs (JEPs) with the potential chemical exposure. 2. Assess relative exposure potential for each JEP (highest to lowest) B. Quantitative Assessment Industrial hygiene monitoring is typically conducted on a job (JEP) basis. That is, the monitoring or sampling data are considered representative of the job's exposures. Therefore the number of samples collected must be adequate to take into account the day-to-day and shift-to-shift variability of exposures in the job and the variability between individuals when more than one work the job. For this reason a number of samples are usually required for initial evaluation. The following tables recommend the minimum number of samples per JEP, and the minimum number of individuals and shifts to be sampled. The recommended minimum increases with the number of individuals working in the job. Since the following recommendations are minimums, judgment should be used in collecting more samples if the JEP has significant work task variation from day-to-day or shift-to-shift. Since nearly all JEPs may be described as being either rotating or fixed shifts, separate tables for each have been developed. Where more than one job category is involved, jobs with the highest exposure potential must be monitored first. For example, three of five operating jobs on a particular unit may be evaluated first; monitoring coverage would then be expanded if warranted based on the initial monitoring results. CAD8606301B LAM 000722 DPMC-16424 4 TABLE 1 Minimum Number of Samples (TWA) to be Collected Initially 1. Fixed Shifts (employees generally work same shift each day, i.e., five, 8-hour days or nights) Number Employees per JEP Percent Employees to be Sampled # Shifts to be Sampled1*2 Min. # Samples per JEP 1-2 3-5 6-10 11+ 100 at least 50 at least 33 approx. 25 3-5 3-5 4-5 4-5 5-6 6-8 8-12 12 2. Rotating Shifts Number Employees per shift per JEP 1 -2 3-4 Number Employees per JEP3 4-8 12 - 16 Percent Employees to be sampled at least 50 at least 25 Min. # Samples per JEP1'4 6-9 9-12 1 Should include day and night shifts if there are differences in exposure potential between shifts. 2 Should consider sampling at higher range of shifts with few employees per shift. 3 Assumes four employees required to cover job with one employee per shift, rotating shifts, 24 hours per day, seven days per week. 4 Assumes % of employees (from preceding column) who can work the JEP are sampled 3-5 shifts each. The following examples illustrate the use of these tables. Example 1: Assume 4 painters work straight days (fixed shifts), and solvent exposure levels need to be determined. Table 1 (fixed shifts) recommends sampling at least 2 of the 4 painters (50%) for 3-5 different workdays. This would result in a minimum of 6 samples. To improve the representativeness of the data, consider dividing the 6 samples among all 4 painters or as many of them as possible. Also, the 6 samples need not be collected just on 2 painters for each of 3 days. The sampling could be spread over more than 3 days and possibly improve the representativeness of the data. CAD8606301B LAM 000723 DPMC-16425 5 Example 2: Assume a Dockman works rotating 8-hour shifts round the clock each day of the year and benzene exposure levels need to be determined. There are 3 Dockraen working on any one shift, with a total of 12. The Dockmen load one barge-of benzene per week. According to Table 1 (rotating shifts), at least 9 samples should be collected. They should be collected on as many different dockmen as possible but on no less than 3 (25% of 12) different dockmen. It may take several weeks to complete sampling for the initial monitoring since only 1 benzene barge is loaded per week. The initial monitoring for the quantitative assessment should be completed in the shortest time period necessary to collect a representative set of exposure data. Selection of the study duration will be a case-by-case determination. IV. Analysis of Initial Monitoring Results The minimum number of samples specified in Section III are necessary in order to perform the following statistical test and screen of the data. The purpose of the statistical test is to screen the initial results into data sets which clearly fall below the allowable exposure limit* (AEL) or which require more samples to determine compliance or non-compliance. For those data sets clearly below the AEL, an appropriate frequency of periodic monitoring is established based on relative exposure to the AEL and the potential hazard of the material. For example, the greater the health hazard or the closer the data are to the AEL, more frequent follow-up monitoring is indicated for that JEP. The statistical test consists of comparing the 80% upper confidence limit of the geometric mean of the data to the AEL. This parameter was selected after examining numerous existing data sets. It was found to be a relatively reliable indicator for initially screening data for substantial compliance when used as described in Tables 2 and 3. * May be the PEL, TLV, SIS, or other exposure limit for which a compliance determination is necessary. CAD8606301B LAM 000724 DPMC-16426 6 TABLE 2 80% Upper Confidence Limit of the Geometric Mean1 : > AEL .5 x AEL but g AEL > .1 x AEL but < .5 AEL S .1 AEL Category D C B A The corresponding actions for each of the categories are as follows2: TABLE 3 Category Action Materials of Priority I3Materials of Priority II3 D Collect minimum of 20 TWA samples (previously collected samples included) within one month and plot on cumula tive frequency distribution graph per Section V. If, in the judgement of the industrial hygienist or the Health and Safety Manager, the initial monitoring data clearly show exposure potential above the AEL, then collection of the full 20 sample minimum is unnecessary. In these circumstances, take the appropriate control actions and refer to Table 4 for frequency of monitoring. C Collect minimum of 20 TWA (previously collected samples included) within three months and plot on cumulative frequency distribution graph per Section V. B Repeat initial monitoring annually Repeat initial monitoring biennially (lx/2 yr) A Repeat initial monitoring Repeat initial monitoring biennially (lx/2 yr) if there are significant changes in workplace/ work practices 1See Attachment II for an example calculation of the 80% upper confidence limit of the geometric mean. This calculation is also available in Stat-Graph. 2If any sample equals or exceeds the AEL, the recommending sampling strategy should move up one category, e.g., B to C. 3See Attachment I CAD8606301B LAM 000725 DPMC-16427 7 V. Analysis of Expanded Monitoring Results This step in the procedure should be applied to ascertain both _ compliance and non-compliance with the AEL and the appropriate frequency for periodic monitoring. The following may also be useful in analyzing data in an on-going periodic monitoring program for trends, the impact of a change in the AEL, or reestablishing a suitable periodic monitoring frequency. The additional data available at this step permit using the cumulative frequency distribution method to determine directly whether JEP exposures are in substantial compliance (i.e., 95% of the monitoring results are at or below the AEL). The cumulative frequency plot is illustrated below and the method is available on Stat-Graph. An example of a Stat-Graph Plot is included as Attachment II. Cumulative Frequency Distribution % Exposures < Stated Value The cumulative frequency results should be compared to Table 4 to determine appropriate periodic monitoring frequency. The monitoring frequency is a function of 2 factors: 1) the exposure levels relative to the AEL; and 2) the health hazard of the material. The monitoring frequency is increased as the exposure levels approach the AEL and as the potential health hazard increases. In some cases, the recommended periodic monitoring frequency may not provide sufficient data to permit statistical analysis each year. However, these cases are limited to situations and JEPs which are already under relatively good control and for which exceeding the AEL is unlikely. CAD8606301B LAM 000726 DPMC-16428 8 TABLE 4 95% Level of Cumulative Frequency Distribution Frequency of Monitoring (samples per JEP per year) For Materials of For Materials of Priority I2 Priority II2 > AEL (no controls feasible)1 Repeat monitoring at the frequency designated for ">AEL (controls under study)" for the first year following the initial determination. If engineering or other controls remain infeasible and levels for the previous year are not increasing, then reduce the frequency of monitoring to not less than semi-annually and continue to evaluate the feasibility of controls. > AEL (controls under study) 12 (1/month) 4 (1/quarter) .5 x AEL but ^ AEL 8 (2/quarter) 2 (1/6 months) > .1 x AEL but < .5 AEL 4 (1/quarter) > .01 x AEL but < .1 x AEL Repeat initial monitoring bien nially (lx/2 yr) Repeat initial monitoring if there are signi ficant changes in workplace or work practices. < .01 AEL Repeat initial monitoring if there are signi ficant changes in workplace or work practices. N.A. Assumes engineering controls are not feasible; however, appropriate PPE is in use. 2See Attachment I. CAD8606301B LAM 000727 DPMC-16429 9 VI. Additional Information There are additional considerations which can impact and modify the foregoing procedure. Guidance in some of the major areas is included as attachments. Attachment IV Attachment V Attachment VI Attachment VII Personal Sample Type Definitions Peak/Task Sample Frequency Offshift Sampling Multiple/Cumulative Exposures OSHA Monitoring Requirements in Health Standards Exposure Monitoring for Maintenance Turnarounds CAD8606301B LAM 000728 DPMC-16430 --*9 W oC1* o 0 -- -- --O', li o ** M C O -- -- O *9 ** C C b- U tuft* ** O c t> --* t-> Kc oK &C C U Ci D> e Ul V FLOWCHART FOR EXPOSURE ASSESSMENTS 0T8616T03 DPMC-16431 LAM 000729 ATTACHMENT I MATERIAL SAMPLING PRIORITY In addition to exposure potential, the hazard of the material is a factor in establishing industrial hygiene sampling strategy. In general, the more hazardous the material, the greater the need for industrial hygiene monitoring. For example, a known human carcinogen will require more frequent industrial hygiene monitoring than a nuisance dust. To take into account the significance of hazard, two sampling priorities, I and II, are established. They are defined as follows: Priority I Materials which have the potential to produce irreversible acute or chronic health effects, e.g., carcinogens, reproductive hazards, neurotoxins, hepatotoxins, and fibrosis-producing dusts. Examples: Benzene, Vinyl Chloride, Epichlorohydrin, Oxitol (2-ethoxy ethanol), Inorganic and Organic Lead, Ethylene Oxide, Ethylene Dibromide, Asbestos, Crystalline Silica, Hydrogen Sulfide, Chlorine, all materials that require counseling under the Protection of the Embryo/ Fetus Policy. Priority II* * Materials which may produce only reversible acute or chronic health effects including typically irritants and nuisance dusts. Examples: Acetone, Isopropyl Alcohol, VM&P Naphtha. Materials for which there is industrial hygiene monitoring data in the Health Surveillance System have been reviewed and categorized as follows: *Listed for the purpose of establishing IH sampling priority. This category is not intended for any other purpose. Those substances not designated with 'I' are considered Priority II. CAD8606301B DPMC-16432 LAM 000730 CONTAMINANT CODES (ALPHABETICALLY) REVISED 6/86 (CONTINUED) ATTACHMENT I PAGE 2 OF 9 THESE ARE THE CONTAMINANT CODES TO BE USED ON IH SAMPLING FORMS. THIS LIST REPLACES ALL PREVIOUS LISTS. DO NOT USE ANY CONTAMINANT CODES WHICH DO NOT APPEAR ON THIS LIST. MATERIAL CONTAMINANT SAMPLING CODES PRIORITY* AIR COMTAMINANT 900 709 900 710 900 722 900 632 900 501 900 603 900 502 900 503 900 504 900 505 900 506 900 401 900 507 900 663 900 402 900 403 900 508 900 801 900 509 900 510 ACENAPHTHALENE ACENAPHTHENE ACETALDEHYDE ACETIC ACID ACETONE ACETONITRILE I ACROLEIN ALDICARB I ALLYL ALCOHOL I ALLYL CHLORIDE ALLYL GLYCIDYL ETHER ALUMINUM (AS FUME) AMMONIA ANILINE ANTIMONY I ARSENIC I ASBESTOS I ASPHALT FUMES ATRAZINE AZODRIN 900 404 900 511 900 728 900 512 900 800 900 406 900 513 900 453 900 628 900 672 900 515 900 601 900 516 900 545 900 409 900 410 900 517 900 518 BARIUM I BENZENE I BENZENE SOLUBLES, PNA BIDRIN BISPHENOL A BISMUTH BLADEX BROMINE I BUTADIENE I BUTOXYETHANOL, 2 BUTYL ALCOHOL (N-BUTANOL) BUTYL CRESOL I BUTYL GLYCIDYL ETHER BUTYLATED HYDROXY TOLUENE I CADMIUM CALCIUM CARBON DIOXIDE I CARBON DISULFIDE *Listed for the purpose of establishing IH sampling This category is not intended for any other purpose. Those substances not designated with 'I' are considered Priority II. CAD8606301B LAM 000731 DPMC-16433 CONTAMINANT CODES (ALPHABETICALLY) REVISED 6/86 (CONTINUED) ATTACHMENT I PAGE 3 OF 9 THESE ARE THE CONTAMINANT CODES TO BE USED ON IH SAMPLING FORMS. THIS LIST REPLACES ALL PREVIOUS LISTS. I' DO NOT USE ANY CONTAMINANT CODES WHICH DO NOT APPEAR ON THIS LIST. CONTAMINANT CODES MATERIAL SAMPLING PRIORITY* AIR COMTAMINANT 900 519 900 520 900 803 900 810 900 851 900 412 900 848 900 691 900 521 900 414 900 413 900 522 900 795 900 820 900 415 900 699 900 450 900 416 900 523 900 524 900 684 900 525 900 526 CARBON MONOXIDE I CARBON TETRACHLORIDE CATALYST DUST TOTAL CATALYST DUST, RESPIRABLE CERAMIC FIBERS CHLORINE I CHLOROBIPHENYLS CHLOROETHANE I CHLOROFORM I CHROMIUM (HEXAVALENT) CHROMIUM (TOTAL) CIODRIN COAL DUST, RESPIRABLE COAL DUST, TOTAL COBALT COBALT CARBONATE COPPER (SOLUBLE) COPPER (TOTAL) I CRESYL GLYCIDYL ETHER CUMENE I CYANIDES (SALTS) I CYANURIC CHLORIDE CYCLOHEXANE 900 527 900 528 900 675 900 530 900 573 900 586 900 531 900 692 900 634 900 646 900 729 900 638 900 731 900 572 900 532 I D-D DIACETONE ALCOHOL DIALLYLAMINE DIBROM DIBROMO METHANE I DIBROMOCHLOROPROPANE DICHLOROBENZENE (ORTHO) DICHLOROETHANE 1,1DICYCLOPENTADIENE DIETHANOL AMINE DIETHYL SULFATE DIETHYLENE GLYCOL DIMETHYL ANILINE DIMETHYL DISULFIDE DIMETHYL METHYL PHOSPHONATE *Listed for the purpose of establishing IH sampling priority. This category is not intended for any other purpose. Those substances not designated with are considered Priority II. CAD8606301B LAM 000732 DPMC-16434 CONTAMINANT CODES (ALPHABETICALLY) REVISED 6/86 (CONTINUED) ATTACHMENT I PAGE 4 OF 9 THESE ARE THE CONTAMINANT CODES TO BE USED ON IH SAMPLING FORMS. THIS LIST REPLACES ALL PREVIOUS LISTS. DO NOT USE ANY CONTAMINANT CODES WHICH DO NOT APPEAR ON THIS LIST. MATERIAL CONTAMINANT SAMPLING CODES PRIORITY* AIR COMTAMINANT 900 533 900 581 900 810 900 803 900 795 900 820 900 791 900 850 900 804 900 054 900 798 900 849 900 808 900 792 900 812 900 439 900 811 900 799 900 443 900 700 DIMETHYL PHOSPHONATE DIOXANE DUST-CATALYST, RESPIRABLE DUST-CATALYST, TOTAL DUST-COAL, RESPIRABLE DUST-COAL, TOTAL DUST-FLEXICOKER, RESPIRABLE DUST-FLEXICOKER, TOTAL DUST-INERT, RESPIRABLE DUST-INERT, TOTAL DUST-PETROLEUM COKE, RESPIRABLE DUST-PETROLEUM COKE, TOTAL DUST-SILICA, AMORPHOUS I DUST-SILICA, RESPIRABLE (QUARTZ) I DUST-SILICA, TOTAL (QUARTZ) DUST-SULFUR DUST-SYNTHETIC BLASTING (NON SILICA-RESPIRABLE) DUST-SYNTHETIC BLASTING (NON SILICA-TOTAL) I DUST-VANADIUM (AS V205) I DUST-VANADIUM (AS V205) RESPIRABLE 900 534 900 656 900 682 900 535 900 536 900 582 900 622 900 537 900 698 900 685 900 623 900 538 900 539 900 639 900 540 I EPICHLOROHYDRIN I ETHOXYETHANOL, 2 (EGMEE) ETHOXYETHYLACETATE, 2 (EGMEEA) ETHYL ACETATE ETHYL ALCOHOL ETHYL AMINE ETHYL AMYL KETONE ETHYL BENZENE ETHYL HEXANOL, 2 ETHYL TOLUENE ETHYLENE DIAMINE I ETHYLENE DIBROMIDE I ETHYLENE DICHLORIDE ETHYLENE GLYCOL I ETHYLENE OXIDE 900 643 900 827 FERROUS OXIDE FIBERGLASS *Listed for the purpose of establishing IH sampling priority. This category is not intended for any other purpose. Those substances not designated with 'I' are considered Priority II. CAD8606301B DPMC-16435 LAM 000733 CONTAMINANT CODES (ALPHABETICALLY) REVISED 6/86 (CONTINUED) ATTACHMENT I PAGE 5 OF 9 THESE ARE THE CONTAMINANT CODES TO BE USED ON IH SAMPLING FORMS. THIS LIST REPLACES ALL PREVIOUS LISTS. DO NOT USE ANY CONTAMINANT CODES WHICH DO NOT APPEAR ON THIS LIST. MATERIAL CONTAMINANT SAMPLING CODES PRIORITY* AIR COMTAMINANT 900 791 900 850 900 717 900 576 900 825 900 801 900 809 900 683 FLEXICOKER DUST, RESPIRABLE FLEXICOKER DUST, TOTAL FLUORENE I FORMALDEHYDE I FUME - VANADIUM, (AS V205) I FUMES - ASPHALT FUMES - WELDING, TOTAL FURFURAL 900 667 900 805 900 664 GAMMA GLYCIDOXY PROPYL TRIMETHOXY SILANE GASOLINE, (AS TOTAL HYDROCARBONS) GLACIAL ACRYLIC ACID 900 541 900 542 900 637 900 644 900 844 900 730 900 649 900 585 900 543 900 544 HEPTANE I HEXANE, NORMAL HEXYLENE GLYCOL I HYDRAZINE HYDROCARBON, TOTAL (NOT GASOLINE) I HYDROGEN BROMIDE I HYDROGEN CHLORIDE I HYDROGEN CYANIDE I HYDROGEN FLUORIDE I HYDROGEN SULFIDE 900 804 900 054 900 545 900 420 900 695 900 652 900 679 900 546 900 583 900 630 INERT DUST, RESPIRABLE INERT DUST, TOTAL IONOL (BHT) IRON ISOBUTYL ALCOHOL ISOPENTANE ISOPRENE ISOPROPYL ALCOHOL ISOPROPYL AMINE ISOPROPYL ETHER 900 422 900 421 900 629 900 448 I LEAD-INORGANIC, AS PB I LEAD-ORGANIC, AS PB (NOT TEL/TML) I LEAD-TETRA ETHYL AND TETRAMETHYL, AS PB LITHIUM Listed for the purpose of establishing IH sampling priority. This category is not intended for any other purpose. Those substances not designated with 'I' are considered Priority II. CAD8606301B DPMC-16436 LAM 000734 CONTAMINANT CODES (ALPHABETICALLY) REVISED 6/86 (CONTINUED) ATTACHMENT I PAGE 6 OF 9 THESE ARE THE CONTAMINANT CODES TO BE USED ON IH SAMPLING FORMS. THIS LIST REPLACES ALL PREVIOUS LISTS. 1' DO NOT USE ANY CONTAMINANT CODES WHICH DO NOT APPEAR ON THIS LIST. CONTAMINANT CODES MATERIAL SAMPLING PRIORITY* AIR COMTAMINANT 900 723 900 423 900 424 900 830 900 425 900 624 900 547 900 658 900 548 900 549 900 550 900 631 900 551 900 625 900 650 900 606 900 584 900 694 900 427 900 426 900 447 900 677 900 662 900 570 900 571 M-PHENYLENEDIAMINE MAGNESIUM MANGANESE I MERCAPTANS, TOTAL I MERCURY MESITYL OXIDE METHANOL I METHOXY ETHANOL, 2 (EGMME) METHYL BUTYL KETONE METHYL CHLORIDE I METHYL ETHYL KETONE METHYL ISOBUTYL CARBINOL METHYL ISOBUTYL KETONE I METHYL ISOCYANATE METHYL TERTIARY BUTYL ETHER METHYL THIOACETALDOXIME I METHYLENE CHLORIDE I METHYLENE DIANILINE 4,4'MOLYBDENUM (INSOL) MOLYBDENUM (SOL) MOLYBDENUM (TOTAL) MONOALLYLAMINE MONOETHANOLAMINE MONOMETHYLAMINE MONOMETHYLCHLOROACETOACETAMIDE 900 515 900 614 900 612 900 611 900 613 900 617 900 615 900 616 900 719 900 460 900 446 900 552 900 428 N-BUTANOL I N-NITROSODIBUTYLAMINE I N-NITROSODIETHYLAMINE I N-NITROSODIMETHYLAMINE I N-NITROSODIPROPYLAMINE I N-NITROSOMORPHOLINE I N-NITROSOPIPERIDINE I N-NITROSOPYROLLIDINE NAPHTHALENE I NICKEL (SOLUBLE), AS NI I NICKEL (TOTAL) I NICKEL CARBONYL, AS NI I NICKEL CHLORIDE *Listed for the purpose of establishing IH sampling priority. This category is not intended for any other purpose. Those substances not designated with 'I' are considered Priority II. CAD8606301B DPMC-16437 LAM 000735 CONTAMINANT CODES (ALPHABETICALLY) REVISED 6/86 (CONTINUED) ATTACHMENT I PAGE 7 OF 9 THESE ARE THE CONTAMINANT CODES TO BE USED ON IH SAMPLING FORMS. THIS LIST REPLACES ALL PREVIOUS LISTS~ ' DO NOT USE ANY CONTAMINANT CODES WHICH DO NOT APPEAR ON THIS LIST. MATERIAL CONTAMINANT SAMPLING CODES PRIORITY* AIR COMTAMINANT 900 429 900 455 900 466 900 610 900 553 900 607 900 720 900 554 I NICKEL METAL I NICKEL OXIDE I NICKEL SUBSULFIDE I NITRIC ACID NITROGEN DIOXIDE NONANE NONANOL NUDRIN 900 574 900 721 900 806 900 421 900 587 900 666 900 555 OCTANE OCIENE (ISOMERS) OIL MIST ORGANIC LEAD, AS PB (NOT TEL/TML) ORTHO CHLORO BENZOIC ACID ORTHODIMETHOXYBENZENE OZONE 900 589 900 633 900 619 900 798 900 849 900 620 900 556 900 724 900 557 900 640 900 431 900 836 900 728 900 848 900 432 900 558 900 706 P-CRESOL PENTANE PENTOXONE PETROLEUM COKE DUST, RESPIRABLE PETROLEUM COKE DUST, TOTAL I PHENOL I PHENYL GLYCIDYL ETHER PHORONE I PHOSDRIN I PHOSGENE PLATINIUM METAL PLATINUM (SOL SALTS), AS PT PNA, BENZENE SOL. FRACTION I POLYCHLORINATED BIPHENYLS POTASSIUM PYDRIN PYRENE 900 559 900 618 RABON RM 17 + OXIDES *Listed for the purpose of establishing IH sampling priority. This category is not intended for any other purpose. Those substances not designated with 'I' are considered Priority II. CAD8606301B DPMC-16438 LAM 000736 CONTAMINANT CODES (ALPHABETICALLY) REVISED 6/86 (CONTINUED) ATTACHMENT I PAGE 8 OF 9 THESE ARE THE CONTAMINANT CODES TO BE USED ON IH SAMPLING FORMS. THIS LIST REPLACES ALL PREVIOUS LISTS. DO NOT USE ANY CONTAMINANT CODES WHICH DO NOT APPEAR ON THIS LIST. CONTAMINANT CODES MATERIAL-SAMPLING PRIORITY* ........ AIR COMTAMINANT 900 647 900 577 900 808 900 792 900 812 900 436 900 591 900 590 900 641 900 841 900 560 900 561 900 439 900 609 900 696 900 811 900 799 SECONDARY BUTYL ALCOHOL SHOP LIGAND SILICA-AMORPHOUS I SILICA-RESPIRABLE, (QUARTZ) I SILICA-TOTAL (QUARTZ) SILVER SILVER AMINO OXALATE SILVER OXALATE I SODIUM HYDROXIDE STODDARD SOLVENT I STYRENE I SULFUR DIOXIDE SULFUR DUST SULFUR TRIOXIDE SULFURIC ACID SYNTHETIC BLASTING (NON SILICA-RESPIRABLE) DUST SYNTHETIC BLASTING (NON SILICA-TOTAL) DUST 900 627 900 626 900 602 900 608 900 629 900 689 900 562 900 440 900 452 900 441 900 575 900 563 900 660 900 054 900 676 900 578 900 579 900 688 900 564 900 681 900 648 TERTIARY BUTYL TOLUENE TERTIARY BUTYL ALCOHOL TERTIARY BUTYL BENZENE I TERTIARY BUTYL BENZOIC ACID (PARA) I TETRA ETHYL AND TETRA METHYL LEAD, AS PB TETRACHLOROETHYLENE TETRAHYDROFURAN TIN (INORGANIC) TIN (ORGANIC) TITANIUM TITANIUM TRICHLORIDE TOLUENE I TOLUENE DIISOCYANATE TOTAL DUST, INERT TRIALLYLAMINE TRICHLOROBENZENE TRICHLOROETHANE I TRICHLOROETHANE, 1,1,2I TRICHLOROETHYLENE TRICHLOROPROPANE 1,2,3 TRIETHYLAMINE '-Listed for the purpose of establishing IH sampling priority. This category is not intended for any other purpose. Those substances not designated with 'I' are considered Priority II. CAD8606301B DPMC-16439 LAM 000737 CONTAMINANT CODES (ALPHABETICALLY) REVISED 6/86 (CONTINUED) ATTACHMENT I PAGE 9 OF 9 THESE ARE THE CONTAMINANT CODES TO BE USED ON IH SAMPLING FORMS. THIS LIST REPLACES ALL PREVIOUS LISTS. DO NOT USE ANY CONTAMINANT CODES WHICH DO NOT APPEAR ON THIS LIST. MATERIAL CONTAMINANT SAMPLING CODES PRIORITY* AIR COMTAMINANT 900 693 900 657 900 565 900 566 900 686 900 580 900 680 900 442 TRIETHYLENE GLYCOL I TRIMELLITIC ANHYDRIDE TRIMETHYL PHOSPHATE TRIMETHYL PHOSPHITE TRIMETHYLBENZENE 1,2,4 TRIPHENYL PHOSPHINE TRIPHENYLPHOSPHONIUM ETHYL IODINE TUNGSTEN (SOL) 900 443 900 825 900 700 900 567 900 568 900 725 I VANADIUM - DUST (AS V205) I VANADIUM FUME (AS V205) I VANADIUM (AS V205), RESPIRABLE DUST VAPONA I VINYL CHLORIDE MONOMER VM&P NAPHTHA 900 809 WELDING FUMES, TOTAL 900 569 XYLENE, 0-, M-, P-ISOMERS 900 444 ZINC OXIDE 900 692 900 688 900 681 900 686 900 674 900 673 900 672 900 656 900 682 900 698 900 658 900 694 I 1,1-DICHLOROETHANE I 1,1,2 TRICHLOROETHANE 1,2,3 TRICHLOROPROPANE 1,2,4 TRIMETHYLBENZENE I 2-(2-BUTOXYETHOXY) ETHANOL I 2-(2-ETHOCYETHOXY) ETHANOL I 2-BUTOXYETHANOL I 2-ETHOXYETHANOL, (EGMEE) I 2-ETHOXYETHYLACETATE (EGMEEA) 2-ETHYL HEXANOL I 2-METHOXY ETHANOL, (EGMME) I 4,4'-METHYLENE DIANILINE *Listed for the purpose of establishing IH sampling priority. This category is not intended for any other purpose. Those substances not designated with 'I' are considered Priority II. CAD8606301B DPMC-16440 LAM 000738 HAND CALCULATION OF 80* UCL - EXAMPLE Assume 10 random samples (X) for benzene have been collected on a Tank Truck Operator. The TLV for benzene is 10 ppm. In order to determine whether the data is Category A, B, C or D, the 80% upper confidence limit of the geometric mean must be calculated and compared to the allowable exposure limit (AEL) for benzene. All calculations are performed by using log transformed values and then converting. All X values are in ppm. Step 1 - Calculate geometric mean X log x 1 2.0 0.30 2 24.0 1.38 log x = z log x 3 12.0 1.08 n 4 1.4 0.15 5 0.9 -0.04 log x = 3.92 6 14.0 1.15 ~nr 7 1.0 0 8 0.5 0.30 9 0.5 0.30 log x = 0.39 10 3.2 0.50 Z == 3.92 Step 2 - Calculatet standard deviation log s = / z (log x - log 2 x) V n-1 1o9 x (log x - log "x) 0.30 1.38 1.08 0.15 -0.04 1.15 0 -0.30 -0.30 0.50 -0.09 0.99 0.69 -0.24 -0.43 0.76 -0.39 -0.69 -0.69 0.11 log s = / 3.398 N T" log s = 0.61 2 (log x - log x) 0.008 0.980 0.476 0.057 0.184 0.577 0.152 0.476 0.476 0.012 Z = 3.398 CHBT8621006 DPMC-16441 LAM 000739 Step 3 - Calculate the 80% UCL (log transformed) 80% UCL = log 7 +.0.842 log s/\TrT = 0.39 + (0.842)(0.61)/n/IcT = 0.55 2 Step 4 - Convert by taking the antilog 80% UCL = antilog 0.55 = 3.55 This job would be Category B since 3.55 ppm is >.l x AEL but .5 x AEL NOTE: The use of a hand calculator with statistics functions will greatly speed up the calculations in Steps 1 and 2. CHBT8621006 DPMC-16442 LAM 000740 ATTACHMENT III LAM 000741 uum ulative frequency P lot Exposure, ppm ATTACHMENT IV PERSONAL SAMPLE TYPE DEFINITIONS TWA - (Time-Weighted Average) is a sample with a minimum sample time of the full shift less one hour, i.e., 7 of 8, 9 of 10, or 11 of 12 hours. If the sample time is less than this minimum but zero exposure time for the unsampled period can be and is documented, then the sample can be considered a TWA. The "TWA Determination Section" of the Industrial Hygiene Sample Form should be completed according to previously issued instructions. If a sample is intended to be a TWA, but the minimum sample time as defined above is not achieved, the "TWA Determination Section" of the Sample Form should be completed as "TWA Cannot Be Calculated". Peak - Samples represent specific short-term tasks ranging from 1-30 minutes in duration. When feasible, try to attain a sample time of 15 minutes of duration of the task, not to exceed 30 minutes. Task - Samples represent specific tasks exceeding 30 minutes duration, but not representative of the TWA exposure. Examples of such tasks would be loading/unloading of a tank car or truck, gauging, or decontaminating a pump for maintenance. PEAK/TASK SAMPLE FREQUENCY When feasible, peak samples (or task if duration exceeds 30 minutes) should be taken in conjunction with TWA sampling during initial deter mination of Priority I chemicals. This sampling should be done regard less of the OSHA peak/ceiling or ACGIH STEL status for the chemical being monitored. The purpose of this monitoring is to further charac terize the exposure profile of the job. Subsequent samples should be taken if initial TWA determination results in Categories B, C or D. OFFSHIFT SAMPLING Jobs with multiple or rotating shifts should be evaluated for differences in job activities between shifts. It is normally most practical to sample on day shifts and this is appropriate where activities on all shifts are virtually the same. However, if exposure potential varies with the shift, it will probably be necessary to consider alternate means of collecting representative data. CAD8606301B DPMC-16444 LAM 000742 ATTACHMENT V MULTIPLE EXPOSURES WITH POTENTIALLY ADDITIVE HEALTH EFFECTS Where multiple exposures occur to materials which act upon the same organ system, e.g., they are irritants, narcotic, hepatotoxic, etc., their combined effect, rather than that of either individually, should be considered as additive. In these situations, the initial quantitative determination should be analyzed by adding the 80% upper confidence limits about the mean for the additive materials, and then identifying the sum as Category A, B, C or D by the standard criteria. If the sum falls into Categories C or D, then additional monitoring should be conducted for each of the additive materials. After the additional monitoring is conducted, the results should be analyzed by adding the 95% level of the Cumulative Frequency Distribution for each of the additive materials. The sum should then be compared to the standard criteria for determination of periodic monitoring frequency. Each of the additive materials should be monitored according to this frequency. Examples: Assume that for one JEP, both Allyl Chloride (AC) and Epichlorohydrin (ECH) are monitored. These materials have potentially additive toxic effects. Therefore, the combination of the exposures should be considered in the evaluation of industrial hygiene monitoring data, and in the determination of sampling strategy. The following cases represent examples of applying the standard criteria to the combination of exposures: Case 1 The initial quantitative survey showed - - The 80% UCL of mean for ECH < 0.1 SIS (Shell Internal Standard) - The 80% UCL of mean for AC < 0.1 PEL - Since the sum of the 80% UCLs does not clearly exceed 0.1 PEL, this would remain Category A with a reassessment in two years because of the Material Sampling Priority (I) of the two materials. CAD8606301B LAM 000743 DPMC-16445 2 Case 2 The initial quantitative survey showed - - The 80% UCL of mean for ECH < 0.1 SIS - The 80% UCL of mean for AC = 0.4 PEL - In this case, the sum of the 80% UCLs is between 0.4 and 0.5 PEL, placing the JEP in Category B. As a result, the initial quantitative survey should be repeated in one year. Case 3 The initial quantitative survey showed - - The 80% UCL of mean for ECH = 0.2 SIS - The 80% UCL of mean for AC = 0.3 PEL - In this case, the sum of the 80% UCLs is 0.5 PEL, placing the JEP in Category C. Additional samples should be collected for both ECH and AC. After 20 samples of each are obtained, assume the following results are obtained: 95% cumulative frequency level for ECH = 0.4 SIS 95% cumulative frequency level for AC = 0.4 PEL Since the sum of the 95% cumulative frequency levels is 0.8 PEL and the Material Sampling Priority is I, the JEP should be periodically monitored two times per quarter for each material. CAD8606301B LAM 000744 DPMC-16446 ATTACHMENT V I SUMMARY OF EXPOSURE MONITORING REQUIREMENTS IN OSHA HEALTH STANDARDS JULY 2 1 , 1985 e> i--i oPS iH o CJ HQH OI--i PS w Oh o J--I PoS H hH o < --I H IH > CO 3 3 c CO 0co 4-> CCOO 0 < > CO 3 3 3co H 41 CO 4-> (0 3 4) < .o3 ( CO < r4 0 3 H O 4) 3 b r4 > 44 4o4 43-> XO 300 *U U 4H-1 CO *0 4-1 H 41 CO O3 X3 (0 CO 41 CO 5 s*CO 4; u Xu U 41 Oh CO 0 0 JD b O -4 $4 *") rH CO O 3 0 44 X *H --l 0 4-1 ft 0 3 3 E b 41 41 33 4-> CO CO 3 O o H ft 0 04 V4 X 4J 01 o 0 4J <1-1 E >. u 4J 44 O i-l X u o H ft -h -3 B -d *"4 3 u o o O rH ON CO o 43-1 4421 3 < I Vi Ob (40> Hi b H CO *i4 o *o o 6 41 *3 41 4-1 4-1 3 3 3 3 *H 3 3 i--( r--4 r4 41 i4 3 Oh 3 r4 3 00 ft b *C 4) 3 O 4- b 3 4-1 3 4J CJ 3 3 3 b >> -- H> i-4 3 *H 3 i4 _ 3 X O 41 ft 41 4J 3 OO r4 3 Oh 3 0 3 3 41 41 O CJ *H 3 b PS E +J 3 3 41 >> i-4 rH -4 4-1 3 33 3 4-1 3 33 41 *4 04 E 41 41 PS 3 X o XU 3 41 3O H 4-1 3 H 4O1O *4H-1 33 3 -H 00 3 41 t-3q *n3> 41 4-1 u3 3 3b EO b Hi o H 44 3 bO 0E pH 00 in vO CM ON 4-1 3 3 41 i-4 4-1 3 pH >4 4-> 41 3 4-1 41 b 04 3 41 3 PS 01 0 00 3 3 00 3 3 t-S 0 U c 3 E b o 4-1 b 0 Oh o ON 0 TO H b O rH CJ r4 s* 3 H > 4J 3 3 41 r-4 4-1 > 3 rH $-1 4-> 41 3 4J 41 b Oh 3 41 3 PS cr1 4-1 3 3 0 >> i-4 pH iH 4-1 3 33 3 4-1 3 33 41 *H 04 E 41 41 PS w 0 OO 3 3 00 3 3 X 0 U 3 3 E b O 44 b 0 04 o ON U H 3 0 3 b < <J H 3 3 00 b O 3 H 4-1 3 3 41 pH 4J 3 i-4 b 4-1 41 3 P 41 14 Oh 3 41 3 PS 0* 4-1 3 <0 n 0 >> iH iH iH 4-1 3 33 3 Hi 3 33 0 i4 04 E 00 PS 3 0 00 3 3 OO 3 3 hi 0 0 3 3 E b O 44 b 0 04 m COM o TO 3 0 X (0 0 4) O 0 b o r-->I >4 0 14 CO 3 O' 00 c u O co H> co H 41 3b O3 E TO 4-1 0 3 4-1 03 04 *-J 03 >4 00 0 4-1 U 3 33 SC -H 3 pO o *"5 3 rH 0 r4 b 33 b *0 O0 4-1 4-1 H 3 3 -4 O3 E 00 0 h b 3 33 -H on COM o 3 3 O H 3 3 H E PS 3 0 > O 0 X o CJ 0 > 0 r4 b 0 O0 0 4H >n bo 3 >Nf-4 3 H Oh o -3 6 Oh Hi 0 3 0 OX E0 44 3 O 4-1 3 3 3 0 -3 3 Oh CJ 0 03 pH PS 0 b0 O0 44 >> O rH - rH ft *3 E 4- 0 3 O -3 Eo 3 4J 3 3 0 Jl Oh 0 03 PS 0 b 3 00 0 V4 >N pH H 3 3 C c 3 H E 0 3 4J 3 0 Oh 0 PS b O 44 0 0 >* >* rH O b pH 0 Oh H> E b0 3 3 -3 QH (J 3 4-1 3 3 0 .3 Oh U 03 PS 0 b o 44 0 0 >* >N r-4 O b rH 0 Oh 4-1 b0 3 3 *3 O' 0 3 4-1 3 3 0 3 Oh 0 03 PS 0 00 3 3 OO 33 hi 0 CJ 3 3 b o 44 b 0 Oh 0 00 3 3 00 3 3 hi 0 CJ 3 3 b O 44 b 0 Oh CO ^4* *4* *<r Oo rH rH oO pH ON ON pH pH 0 C2 3 Oh o b 04 o b 4-1 o 3 r4 3 J3 Ou o cE oo +J b 4- pO o H CJ o 0 00 3 3 00 3 3 hS 0 0 3 3 E b o 44 b 0 04 in o pH o I--1 ON rH 0 rH b 4-1 H c o r4 >> b CJ < b O 44 0 0 >* >* rH o b r4 0 Oh 4-1 E b0 3 3 xi cr u 3 4-1 3 3 0 -3 Oh 0 03 PS 0- 0 0 >> >* O i-4 r4 r4 O 3 30 3 3 xi 30 3 E3 0 3 -3 U Hi 3 30 0 Oh b 0o PS 44 0 00 3 3 OO 3 3 hi 0 U 3 3 E b o 44 b 0 Oh r-* o rH o rH ON rH 0 TD . H X o 0 3 0 p4 > 4-1 PS r-t (U 4) <0 >> 3O Ci iH ft <0 Celi H J 4) JH uu 3 4-> CO cd 4) JS ft u 4) TO Pi 4) >> pH r4 3 3 3 3 30 0 4-* > 3O CO pH 0 Oh 1-4 E 0 4-1 3X U 4-> 3 30 0 Oh 1-1 0O PS 44 0 00 3 3 00 3 3 hi 0 0 3 3 E b O 44 b 0 04 1 1 b 3 O 'O 03 33 O 4-1 OhW o b0 04 3 0 in n oo 3 ON 0 H 44 >> pH 0 pH 0 3 >\ 3O 3 rH 3 ft 3 H 0 E_ 0 X3 30 3 Hi 3 3 0 X* Oh 0 03 PS 0 f* pH pH 3 3 3 3 30 0 Hi >* 3O 3 r4 0 Oh 1-4 E 0 4-1 3X V 4-1 3 30 0 Oh b 0O PS 44 0 b 3 X b O ? p3 0 3 0 3 *p4 3 O H Hi 3 0 H 44 *p4 3 3 3 rH 0 XI O xs 0 3 0 b o 44 4-1 44 H X 3 X 0 3 0 b O 44 0 00 3 3 00 3 3 hi 0 0 3 3 E b O 44 b 0 04 1 1 0 C 0 r4 >> T3 Xu 4-> 3 PS T3 3 O 3 0 4-1 3 CO O Oh 0 O T3 b *r4 O. E O CO b 00 X ON -H pH Q 0 rH 04 E 3 3 rH 4-1 3 3 0 pH 4J < cn 4-> p4 E *H hS 0 b 3 3 O Oh X PS 0 r4 X H 3 3 H b 0 Oh C4 rH 0 > 0 hi c o H 4-1 O < rH DPMC-16447 LAM 000745 ATTACHMENT VII EXPOSURE MONITORING FOR MAINTENANCE TURNAROUNDS General Information In addition to monitoring normal operating periods and daily maintenance activities, exposure monitoring should be performed for unit turnarounds and other significant maintenance activities, e.g., tank cleaning, demolition involving asbestos, etc. Turnarounds represent a potential for employee exposure during the decontamination of process equipment, equipment opening, and unit start-up. Exposure monitoring during these activities on operators, pipefitters, boilermakers and others reflects how well the existing equipment and established procedures control exposure. After an initial evaluation, monitoring should be considered on subsequent shutdowns if there are changes in the procedures and/or to verify adequacy of work procedures. The frequency of monitoring turnarounds for verification of procedures will depend on the hazardous properties of the materials and the potential for exposure. The following table illustrates an example. UNIT TURNAROUNDS1 Material Sampling Priority2 Representative exposure data been collected within 3 years? Minimum frequency for conducting3 Extent of each survey Bring Bring Down4 Up5 II Yes IX/3 turnarounds X II No Alternate X each turnaround I Yes Alternate XX each turnaround I No Next turnaround X X New or modified N/A Initial then N/A X select 1-4 1Applies to major turnaround activity, not necessarily partial shutdowns 2See Attachment I 3Minimum time between monitoring turnarounds is three years 4Consider monitoring operators during the decontamination and purging of unit for the turnaround and both operators and maintenance during initial opening of process equipment. After process equipment has been opened, consider monitoring of craftsmen on a task basis, e.g., welding. 5Consider monitoring operators as unit starts up and returns to normal operation. CAD8606301B LAM 000746 DPMC-16448