Document Rj8gzoDo2VaN7QBmM9RDegX2n

INDUSTRIAL HYGIENE SURVEY IHS 91-08 LAKE CHARLES PLANT JUNE 17 - 19, 1991 CTL031570 RECOMMENDATIONS IHS 91-08 IHS 91-08 IHS 91-08 IHS 91-08 IHS 91-08 IHS 91-08 1. Complete the evaluation of the pressure demand airline respirator system and take the necessary steps to rectify the problem. 2. The Lake Charles in-house VCM monitoring and analysis program should be upgraded to include: a) side by side samples on 10% of your monthly samples be sent to an outside accredited lab for analysis. b) participation a round-robin sample swapping program with other local VCM laboratories (Vista, PPG, etc.) c) strengthen the plant's sampling QC program by writing a formal program of policies and procedures and submitting it to Corporate Health and Safety. 3. Reduce the MSDS log books to only contain the currently used products in the plant by August 30, 1991 and submit a copy of these MSDSs to Corporate Health & Safety for inclusion into the Chem Master program's master chemical inventory file. 4. Maintain an accurate chemical inventory using the Chem Master program. Submit annually to Corporate H&S by March 1st of each year the Tier II reports and the plant chemical inventory.on a diskette using Chem Master Consolidation Module. 5. Forward plant exposure monitoring data from June 1990 to present and current data on a regular basis as it becomes available. 6. Inform the employees of the sampling results by posting Appendix II on the bulletin board. CTL031571 Lake Charles, LA (IHS 91-08) June 17 - 19, 1991 4 immediate area of the prepo hatch showed levels less than the PEL, the vessel entry procedure should continue to require that the watchman wear an airline respirator in the immediate vicinity of the Prepo hatch. It is quite probable that the levels outside the immediate Prepo hatch vicinity could be higher under slightly different conditions. I was informed by employees that there was some problem with the amount of air available, via the airline respirator, to the two Process Operators working inside the Prepo. This situation was quickly remedied and the workers then returned to their tasks. This same problem was identified by M. Kennedy during the last industrial hygiene survey in which a recommendation (IHS 90-15.2) was made to remedy this situation. A status report , dated 11/15/91, indicated work was accomplished on the system. Apparently the problem has not been completely rectified. I understand R. Bullock and F. Conrad are presently evaluating this system. Considering this is a repeat recommendation from our last industrial hygiene survey, I recommend this safety concern receive immediate attention. Comparison of VCM Monitoring Results As in the past, side by side personal and area samples were collected to provide an indication of the plant's overall quality control program. A total of 10 personal and 6 area side by side samples were collected during this survey. These sampling results are compared in Table II. We have used these samples as a screening method to evaluate the plant's in-house laboratory sampling and analytical procedures. A review of the paired sampling results again show a somewhat poor correlation between the samples collected by Lake Charles and Corporate Health and Safety. In general, the results obtained by Corporate Health and Safety are lower with the exception of samples taken on Jimmy Parker (0.28 ppm vs 0.04) which is at the lower limit of detection. Table II, Column 3 shows the +/- range of 35%, the acceptable criteria by which to judge side by side samples. Only five of the sixteen samples were with in the +/- 35% range. From my observations during this survey, and as discussed in prior Industrial Hygiene survey reports, the difference in the reported results is probably not attributed to the actual sample collection since both Lake Charles and Corporate Health and Safety use essentially the same methods, i.e., charcoal tubes with pumps that are pre and post calibrated with a primary standard. A more likely explanation is the difference in the analytical procedure. CTL031572 Lake Charles, LA (IHS 91-08) June 17 - 19, 1991 6 buildings appeared to have risen roughly 2 to 3 decibels higher than in the previous survey performed in August 1990. The increase in the noise level may be attributed to the completion of the north wall of the Polymerization building (due to the recent addition of the franco autoclave prior to the August 1990 survey, this wall was not complete during that sound level survey), as well as different equipment in operation during this survey. If you would like to recheck the noise levels in these areas, a sound level meter can be obtained from the Corporate Health & Safety Department. As part of the plant's hearing conservation program, audiometric examinations are being conducted on an annual basis as required by OSHA and the CertainTeed Hearing Conservation Program for all employees exposed to an action level of 85 decibels. Since hearing protection is readily available at the plant, the only other major requirement of a hearing conservation program is annual training. As recommended in the last survey (IHS 90-15.4), this training is now documented in the same manner as the training for the respiratory protection and hazard communication programs. Respiratory Protection The respiratory protection program is well administered with training conducted annually and documented. As previously stated in the discussion of the Prepo cleaning task, the plant should complete the evaluation of the air supply compressor and make the necessary corrections as soon as possible. Hazard Communication/ChemMaster The hazard communication program is well administered and fulfills the four primary requirements of the OSHA Standard and the CertainTeed Hazard Communication Program (material safety data sheets, the chemical list, labeling and training). Of these four areas, the training and labelling requirements are being fulfilled above the recommended standards. A recommendation was made during the last industrial hygiene survey to maintain an accurate chemical inventory using the ChemMaster program. We understand the plant now has the necessary computer hardware to accomplish this project. In order to maintain an accurate inventory of chemicals at your location, your MSDS log books should contain only MSDS's of currently used products at your plant. This was discussed with Bruce Brocka and Art Gelner at the time of this survey. They assigned the completion date on this project to be August 30, 1991. CTL031573 Lake Charles, LA (1HS 91-08) June 17-19, 1991 7 A copy of all the current MSDSs not already listed on the plant's ChemMaster indexes should then be sent to Corporate Health & Safety to be entered into Chem Master program master chemical inventory file. The Health & Safety Department will then down load a diskette of the Lake Charles chemicals and send it to you during the next update, scheduled for January 1992. This will then help you to maintain your chemical inventory list, and to also assist you in meeting the chemical inventory requirements of the Haz Com Program and in filing your SARA reports. As a reminder, inventory quantity data for all plant chemicals for the preceding year, along with a copy of the Tier II reports, should be submitted annually before March 1st to Corporate Health and Safety. This can be accomplished using a diskette and the Chemical Inventory Consolidation module found in Chem Master. This was not accomplished for the 1990 Tier II reports. Lak Charles Plant VCM Monitoring Data We currently have the plants monitoring data for samples taken through June 1990. We have not received any data after June 1990. Please forward exposure data to us on a regular basis as it becomes available. CTL031574 RIH05 Seq Job Location Job Position Department: PRODUCTION 0017 CLASSIFICATION BLDG (Vinyl Chloride) Start Stop Min 1. 07:43 13:45 362 AREA SAMPLE 1ST FLOOR Cone 0.0390 0018 CLASSIFICATION BLDG AREA SAMPLE 1ST FLOOR (Vinyl Chloride) Start Stop Min Cone 1. 07:43 13:45 362 <0.0370 0002 CONTROL ROOM OPERATOR (Vinyl Chloride) Start Stop Min 1. 07:30 13:10 340 Cone <0.0300 LY BLOG (Vinyl Chloride) Start Stop Min 1. 07:35 13:45 370 AREA SAMPLE 1ST FLOOR Cone <0.0280 0016 POLY BLDG (Vinyl Chloride) Start Stop Min 1. 07:38 13:45 367 AREA SAMPLE 1ST FLOOR Cone <0.0380 0013 POLY BLDG (Vinyl Chloride) Start Stop Min 1. 07:31 09:13 102 AREA SAMPLE 3RD FLOOR Cone 0.4300 Continued... Industrial Hygiene Air Survey: 91-08 VINYL BLDG PROD GRP LAKE CHARLES JUNE 17 - 19, 1991 TABLE I - VINYL CHLORIDE & RES DUST DATA 16:25:50 08/09/1991 Page: 1 Air Table Employee Name Soc Sec Nbr Date Shift TUA Units Exposure Limit AREA 06/19/1991 1ST 0.0390 PPM OSHA PEL = 1 PPM AREA Comments SAMPLE TAKEN ON THE SOUTH END OF THE 1ST FLOOR OF BUILDING 06/19/1991 1ST <0.0370 PPM OSHA PEL = 1 PPM DAVIS, C. Comments SAMPLE TAKEN ON THE NORTH END OF THE 1ST FLOOR OF BUILDING 433-96-1775 06/18/1991 1ST <0.0300 PPM OSHA PEL = 1 PPM Comments AREA 06/19/1991 1ST <0.0280 PPM OSHA PEL = 1 PPM AREA AREA Comments SAMPLE TAKEN ON THE SOUTH END OF THE 1ST FLOOR OF BUILDING 06/19/1991 1ST <0.0380 PPM OSHA PEL = 1 PPM Comments SAMPLE TAKEN ON THE NORTH END OF THE 1ST FLOOR OF BUILDING 06/19/1991 1ST 0.4300 PPM OSHA PEL = 1 PPM Comments SAMPLE TAKEN DIRECTLY OUTSIDE THE PREPO CLEANING HATCH CTL031575 R1H05 ; Seq Job Location Job Position POLY BLOG (Vinyl Chloride) Start Stop Min i. 07:31 09:13 102 AREA SAMPLE 3RD FLOOR Cone 0.5500 0005 POLY BLDG OPERATOR (Vinyl Chloride) Start Stop Min 1. 07:30 13:28 358 Cone 0.1100 0004 POLY BLDG OPERATOR (Vinyl Chloride) Start Stop Min 1. 07:30 13:30 360 Cone 1.6000 0006 POLY BLDG (Vinyl Chloride) Start Stop Min i. 07:30 13r26 356 OPERATOR Cone 0.5700 0011 POLY BLDG OPERATOR (Vinyl Chloride) Start Stop Min 1. 07:15 09:11 116 Cone 25.2000 0012 POLY BLDG OPERATOR (Vinyl Chloride) Start Stop Min 1. 07:20 09:10 110 Cone 47.4000 0001 POLY BLDG SUPERVISOR (Vinyl Chloride) Start Stop Min 1. 07:30 13:15 345 Cone 0.2800 nued Industrial Hygiene Air Survey: 91-08 VINYL BLOG PR00 GRP LAKE CHARLES JUNE 17 - 19, 1991 TABLE I - VINYL CHLORIDE & RES OUST DATA 16:25:50 08/09/1991 Page: 2 Air Table Employee Name Soc Sec Nbr Oate Shift TWA Units Exposure Limit AREA 06/19/1991 1ST 0.5500 PPN OSHA PEL = 1 PPM BARONET, U. Comments SAMPLE TAKEN APPROX. 8' AWAY FROM PREPO CLEANING HATCH 434-88-8240 06/18/1991 1ST 0.1100 PPM Comments Wore AIRLINE Respirator. OSHA PEL = 1 PPM t Pearson, S. 436-21-8804 06/18/1991 1ST 1.6000 PPM OSHA PEL = 1 PPM Comments ROBINSON, A. 438-27-1050 06/18/1991 1ST 0.5700 PPM OSHA PEL = 1 PPM Comments BARONET, U. 434-88-8240 06/19/1991 1ST 25.2000 PPM OSHA PEL = 1 PPM Comments Wore AIRLINE Respirator. DOING PREPO CLEANING ROBINSON, A. 438-27-1050 06/19/1991 1ST 47.4000 PPM OSHA PEL = 1 PPM PARKER, J. Comments Wore AIRLINE Respirator. DOING PREPO CLEANING 434-94-2325 06/18/1991 1ST 0.2800 PPM OSHA PEL = 1 PPM Comnents CTL031576 RIH05 Seq Job Location Job Position 0008 UTILITY OPERATOR (Respirable Dust) Start Stop Min 1. 07:36 13:12 336 Cone 0.0680 0007 UTILITY OPERATOR (Vinyl Chloride) Start Stop Min 1. 07:36 13:12 336 Cone <0.0340 Department: MAINTENANCE 0009 GENERAL ELECTRICIAN (Vinyl Chloride) Start Stop Min 1. 07:35 13:26 351 Cone <0.0320 0010 GENERAL MECHANIC ^^^Vinyl Chloride) ^^5tart Stop Min 1. 07:38 13:16 338 Cone <0.0260 * * * End Of Report * * * REYNOLJU Industrial Hygiene Air Survey: 91-08 VINYL BLDG PROD GRP LAKE CHARLES JUNE 17 - 19, 1991 TABLE I - VINYL CHLORIDE & RES DUST DATA 16:25:50 08/09/1991 Page: 3 Air Table Employee Name Soc Sec Nbr Date Shift TWA Units Exposure Limit CLICK, J. 438-13-0630 06/18/1991 1ST 0.0680 MG/M3 OSHA PEL = 5 MG/M3 CLICK, J. Comments LOADED 2 RAILCARS & CLEANED 1 OUT TODAY 438-13-0630 06/18/1991 1ST <0.0340 PPM OSHA PEL = 1 PPM Comments LOADED 2 RAILCARS & CLEANED 1 OUT TODAY BROUSSARD, G. 433-82-9519 06/18/1991 1ST <0.0320 PPM OSHA PEL = 1 PPM Comments VASSAR, R. 439-60-9174 06/18/1991 1ST <0.0260 PPM OSHA PEL = 1 PPM Comments CTL031577 ftlH06 Survey Contaminant RD 0 CY VC V C2 Name Respirable Dust Vinyl Chloride * * * End Of Report * * * REYNOLJU Listing of Contaminants Used for Survey:91-08 CT 5u PVC & 10mm Cyc/N0600 CT Nuisa.RESP Char Tube 100/50 mg /OSHA METHOD 04 Blankl: Blankl: Date: 08/09/1991 16:25:50 0.000000 Blank2: 0.000000 Blank2: 0.000000 0.000000 CTL031578 SIDE BY SIDE CHARCOAL TUBE COMPARISON OF VCM SAMPLING RESULTS JUNE 18 & 19, 1991 TABLE II EMPLOYEE____________ PERSONAL SAMPLES DATE LAKE CHARLES (ppm) Baronet, Bill 6/18 Baronet, Bill* 6/19 Broussard, Gayland 6/18 Click, John E. 6/18 Davis, Clifton 6/18 Parker, Jimmy 6/18 Pearson, Stuart 6/18 Robinson, Adrian 6/18 Robinson, Adrian* 6/19 Vassar, Richard 6/18 * short term task samples 0.25 70.6 0.04 0.02 0.04 0.04 4.85 1.51 75.6 0.02 AREA SAMPLES 1st Fir Poly (North) 1st Fir Poly (South) Prepo Hatch Area- O' Prepo Hatch Area- 8' 1st Fir Clss (North) 1st Fir Clss (South) 6/19 6/19 6/19 6/19 6/19 6/19 0.04 0.09 1.62 1.44 0.07 0.12 H & S________+/- 35% (ppm) 0.11 25.2 <0.03 <0.03 <0.03 0.28 1.6 0.57 47.7 <0.03 0.15 34. 0.04 0.02 0.04 0.18 2.16 0.77 64.4 0.02 <0.04 <0.03 0.43 0.55 <0.04 0.04 0.04 0.58 0.74 0.05 0.05 Note: Highlighted numbers indicate results are within the +/ 35% acceptable range for comparison. CTL031579 RNH05 Job Location Job Position Industrial Hygiene Noise Survey: 91-08 06/28/1991 08:14:58 Page: 1 VINYL BLOG PRGO GRP LAKE CHARLES Noise Table JUNE 17 - 19, 1991 TABLE III - AUDIOOOSIMETRY RESULTS Employee Name Soc Sec Nbr Date Shift Department: PRODUCTION 0003 CONTROL ROOM OPERATOR (NOISE) Start Stop Min 07:05 13:33 388 Results 72.0 DAVIS, C. Cooiaents dB 433-96-1775 06/19/1991 1ST Requirements BELOW 8-HOUR ACTION LEVEL (85DBA) HEARING PROTECTION OPTIONAL 0005 POLY BLDG OPERATOR (NOISE) Start Stop Min Results 07:18 13:27 369 95.0 Pearson, S. roroneors dB 436-21-8804 06/19/1991 1ST Requirements EXCEEDS 8 HOUR PEL (900BA) PROTECTION MANDATORY EMPLOYEE WORE HEARING PROTECTION 0006 POLY BLOG OPERATOR FERRELL, C. (NOISE) Start Stop Min Results Conments 07:21 13:27 366 95.1 dB 436-90-7561 06/19/1991 1ST Requirements EXCEEDS 8 HOUR PEL (900BA) PROTECTION MANDATORY EMPLOYEE WORE HEARING PROTECTION 0008 POLY BLDG OPERATOR (NOISE) Start Stop Min 07:15 13:26 371 Results 95.0 BARONET, W. 434-88-8240 06/19/1991 1ST Conments Requirements dB PERFORMED PREPO CLEANING FOR EXCEEDS 8 HOUR PEL (90DBA) FIRST PART OF THIS SAMPLE PROTECTION MANDATORY EMPLOYEE WORE HEARING PROTECTION 0004 UTILITY OPERATOR CLICK, J. 438-13-0630 06/19/1991 1ST (NOISE) Start Stop Min Results Conments Requirements 07:09 13:26 377 89.6 dB LOADED 1.5 RAILCARS DURING THE EXCEEDS 8-HOUR ACTION LEVEL (85DBA) SHIFT TOOAY PROTECTION RECOMMENDED EMPLOYEE WORE HEARING PROTECTION Department: MAINTENANCE 0007 GENERAL ELECTRICIAN BROUSSARD, G. (NOISE) Start Stop Min Results Conments 07:26 13:23 357 91.7 dB 433-82-9519 06/19/1991 1ST Requirements EXCEEDS 8 HOUR PEL (900BA) PROTECTION MANDATORY EMPLOYEE WORE HEARING PROTECTION 0001 GENERAL (NOISE) MECHANIC ELLZEY, J. Start Stop Min 07:01 13:26 385 Results 91.8 dB Conments 435-92-3417 06/19/1991 1ST Requirements EXCEEDS 8 HOUR PEL (900BA) PROTECTION MANDATORY EMPLOYEE WORE HEARING PROTECTION Continued... CTL031580 noise cWrrouR map POLYMERIZATION BUILDING Figure 1 COLOR KEY TO FIGURE 1 KEY WORD SOUND LEVEL RESPONSE STOP! 90 dB AND HIGHER HEARING PROTECTION REQUIRED CAUTION! 05 ' 19 dB HEARING PROTECTION RECOMMENDED GO! BELOW as dB HEARING PROTECTION OPTIONAL CTL031581 6/19/91 N'ftl NOISE CONTOUR MAP CLASSIFICATION BUILDING Figure 2 J 1st Floor 2nd Floor COLO* KEY TO FIGURE 2 *n *ou sound level *m*oi*i STOP I SO d* AND HIGHER HEARING PROTECTION *ZQl(IRED CAUTION I S3 - * d* HEARING PROTECTION XECOHXENDIO OMtM coi elo* as d* uajuro woncnt* optional CTL03lfig2 6/19/91 Lake Charles, LA (IHS 91-08) June 17 - 19, 1991 Appendix I Sampling and Analytical Procedures and Current Standards It is our standard procedure in taking personal exposure samples to inform each employee of the purpose of the sample and what they should and should not do to invalidate the results. Specific do's and don'ts are: To go about their work as normal, not to remove the sampler, disconnect the tubing or filter holder, or purposely contaminate the sampling tube or filter, not to shout into a dosimeter microphone or otherwise violate the sample by artificially exposing it to loud noises. We request they inform us of any loss of integrity of the sample such as sampling tube or cassette accidentally coming off, dropping or otherwise subjecting the devices to unnecessary impacts. We strongly encourage plant management to similarly inform the employees when conducting their sampling programs. Vinvl Chloride Monomer The vinyl chloride samples were obtained and analyzed following the OSHA Method 04. Personal and area samples were collected on 600 mg charcoal tubes. DuPont Alpha II pumps were used. Alpha II pumps were calibrated to 30 - 50 cc/min before and after each sampling day. Samples were analyzed by NATLSCO of Long Grove, Illinois using the OSHA Method 04. The OSHA permissible exposure limit is 1 ppm. The Action Level is 0.5 ppm (29 CFR 1910.1017). Respirable Dust Sampling Respirable dust samples were obtained on MSA FWS-B 5 micron polyvinyl chloride filters. Gravimetric analyses were accomplished on a Cahn C-25 electrobalance according to methods given in the OSHA Industrial Hygiene Field Operations Manual, April 2, 1979. DuPont Model 2500 air sampling pumps were utilized for personal samples, and were calibrated at approximately 1.7 liters per minute before and after each sampling day. All respirable dust samples were obtained through the use of 10 millimeter nylon cyclones (MSA Respirable Dust Lapel Samplers). The limit for respirable inert or nuisance dust is 5 mg/m3 per the CTL031583 Lake Charles, LA (IHS 91-08) June 17 - 19, 1991 current OSHA standard, 29CFR1910.1000, Table Z3. Noise A Bruel & Kjaer (B&K) 2230 precision sound level meter with a B & K 4165 1/2-inch microphone, was utilized to obtain sound pressure level measurements. Calibrations were made with B&K 4230 calibrator before and after this survey. When obtaining sound level measurements in the plant, a 3-inch foam sphere was used as a microphone windscreen. The reference for all sound pressure level measurements is 0.0002 microbar. The Metrosonics db-301 dosimeters & 653 Metrologging System was utilized during this survey. The db-301 dosimeters are used for collecting the basic sound level data as both a time history and statistical distribution. The db-653 receives the data from the dosimeter, processes it, and provides a printout in two program formats. The 80 Db cutoff mode is incorporated into these programs. The db-301 audiodosimeters were calibrated before and after each survey day with a Metrosonics Cl-304 calibrator. The permissible OSHA noise exposure, (29CFR1910.95) , ranges between 90 decibels for 8 hours per day through 115 decibels for a maximum duration of 1/4-hour per day. The maximum permissible audiodosimeter dose is 100% which is equivalent to 90 decibels for an 8-hour day. CTL031584 Lake Charles, LA (IHS 91-08) Jun 17 - 19, 1991 Appendix II Industrial Hygiene Survey Sampling Results Information Sheet There are a number of terms and abbreviations used in the sample results posted. A brief explanation will be given of these terms. If you have any further questions about the results contact your supervisor. PPM - parts per million of contaminant in the air. MG/M3 - stands for milligrams of dust or fume per cubic meter of air. OSHA PEL - OSHA stands for the Occupational Safety and Health Administration which is a part of the Department of Labor. It sets limits on the chemical exposures, develops safety standards and establishes other regulations to protect worker health and safety. The PEL is the permissible exposure limit set for the chemical measured. dBA - decibel; a unit of measure for noise. TWA - time-weighted average. It is used to average multiple samples taken on an employee for his full shift to get his average daily exposure. CTL031585 RIH02 INDUSTRIAL HYGIENE SURVEY: 91-08 VINYL BLDG PROO GRP LAKE CHARLES JUNE 17 - 19, 1991 PERSONAL EXPOSURES EMPLOYEE NAME JOB POSITION SAMPLE DATE CONTAMINANT BARONET, UILLIAM M. OPERATOR BARONET, UILLIAM M. OPERATOR BROUSSARD, GAYLAN J. ELECTRICIAN CLICK, JOHN E. OPERATOR CLICK, JOHN E. OPERATOR DAVIS, CLIFTON OPERATOR PARKER, JIMMY L. SUPERVISOR Pearson, Stuart OPERATOR ROBINSON, ADRIAN B. OPERATOR ROBINSON, ADRIAN B. OPERATOR VASSAR, RICHARD J. MECHANIC * * * END OF REPORT * * * REYNOLJU 06/18/1991 06/19/1991 06/18/1991 06/18/1991 06/18/1991 06/18/1991 06/18/1991 06/18/1991 06/18/1991 06/19/1991 06/18/1991 Vinyl Chloride Vinyl Chloride Vinyl Chloride Vinyl Chloride Respirable Dust Vinyl Chloride Vinyl Chloride Vinyl Chloride Vinyl Chloride Vinyl Chloride Vinyl Chloride 08/09/1991 16:27 Page IH POSTING TWA UNITS EXPOSURE LIMIT 0.1100 PPM 25.2000 PPM <0.0320 PPM <0.0340 PPM 0.0680 HG/M3 <0.0300 PPM 0.2800 PPM 1.6000 PPM 0.5700 PPM 47.4000 PPM <0.0260 PPM OSHA PEL = 1 PPM OSHA PEL = 1 PPM OSHA PEL = 1 PPM OSHA PEL = 1 PPM OSHA PEL = 5 MG/M3 OSHA PEL = 1 PPM OSHA PEL s 1 PPM OSHA PEL = 1 PPM OSHA PEL = 1 PPM OSHA PEL s 1 PPM OSHA PEL c 1 PPM CTL031586 *NH02 EMPLOYEE NAME JOB POSITION BARONET, UILLIAM H. OPERATOR BROUSSARD, GAYLAN J. ELECTRICIAN CLICK, JOHN E. OPERATOR DAVIS, CLIFTON OPERATOR ELLZEY, JIMMY R. MECHANIC FERRELL, CALVIN K. OPERATOR MAY, SHELBY R. MECHANIC Pearson, Stuart OPERATOR * * * END OF REPORT * * * HOWARDSA INDUSTRIAL HYGIENE SURVEY: 91-08 VINYL BLDG PROO GRP LAKE CHARLES JUNE 17 - 19, 1991 AUDIO DOSIMETRY RESULTS 06/28/1991 08:18 Page 1 NOISE POSTING SAMPLE DATE DBA_TUA REQUIREMENTS 06/19/1991 06/19/1991 06/19/1991 06/19/1991 06/19/1991 06/19/1991 06/19/1991 06/19/1991 95.00 91.70 89.60 72.00 91.80 95.10 91.90 95.00 EXCEEDS 8 HOUR PEL (90DBA) PROTECTION MANDATORY EXCEEDS 8 HOUR PEL (900BA) PROTECTION MANDATORY EXCEEDS 8-HOUR ACTION LEVEL (85DBA) PROTECTION RECOMMENDED BELOW 8-HOUR ACTION LEVEL (85DBA) HEARING PROTECTION OPTIONAL EXCEEDS 8 HOUR PEL (900BA) PROTECTION MANDATORY EXCEEDS 8 HOUR PEL (900BA) PROTECTION MANDATORY EXCEEDS 8 HOUR PEL (900BA) PROTECTION MANDATORY EXCEEDS 8 HOUR PEL (90DBA) PROTECTION MANDATORY CTL031587