Attachment_04k_2015_IHS_of_93563_Shop.pdf

2015 PERIODIC INDUSTRIAL HYGIENE SURVEY

OF

93563 CLEAN, BLAST & PLATE SHOP

INDUSTRIAL HYGIENE DEPARTMENT

NAVAL HEALTH CLINIC

CHERRY POINT, NC 28533-0023

Enclosure (5)

Table of Contents

Executive Summary 3

Evaluation Summary 6

Worksite Assessment Shop 93563 Clean, Blast and Plate 10

PPE Recommendations Table 19

Skin Notation, Carcinogens, Reproductive Hazards Table 20

Exposure Monitoring Plan 21

Recommended Medical Surveillance 22

Historical Exposure Monitoring Results Table Appendix A

Ventilation System Evaluation Appendix B

Glossary of Terms Appendix C

Industrial Hygiene Customer Evaluation Appendix D

EXECUTIVE SUMMARY

A periodic industrial hygiene survey was completed by Mr. Samuel L. Henson, Industrial Hygienist beginning June 2015. The purpose of the survey was to evaluate any changes to work processes or work practices that have occurred since our previous survey in 2014. Previous annual surveys contain information that may or may not be relevant to current working conditions, please keep records of the previous surveys for reference.

The hazard category for shop 93563 is classified as category A and will continue to receive an annual IH survey.

Areas of particular concern or Command interest are as follows:

Medical Surveillance: DODINST 6055.5 requires a registry of personnel occupationally exposed to hazardous chemicals and physical or biological agents to be developed for each workplace surveyed.

This registry is used to ensure that each employee potentially exposed to a health hazard is enrolled in the appropriate medical surveillance program and is examined by an occupational health physician, physician assistant, audiologist, or other health care provider to detect any insidious or acute ill effects. The FRC

East Safety Office compiles the registry and works with departmental administration to schedule required medical surveillance physicals with the Naval Health Clinic Occupational Medicine Department (OMD).

The OMD appointment scheduler may be contacted by fax number 466-6903 or emailing occ-appt@med.navy.mil.

Hazard Communication/Materials Program: All hazardous materials are drawn from storage and distribution areas throughout the FRC East. The Hazardous Material Distribution Support Center

(HDSC) maintains Authorized Use Lists (AUL) for hazardous materials used by the shops. Employees may obtain a Safety Data Sheet (SDS) from the HDSC when they check out the material or from their supervisor. In an emergency, if the computer system is down, employees may obtain a hard copy SDS from the Security Guard in Building 137. Managers/First line Supervisors shall ensure that personnel receive hazard specific training about the products/chemicals to which they are exposed prior to initial use. New employees are provided training on SDS accessibility at the new employee safety orientation.

Additional training should be provided whenever there is a process change, employee transfers, new product hazards, etc. occur. Recent changes to the OSHA Hazard Communication Standard have prompted a requirement for training on the new SDS format. The new SDS format aligns with the

Globally Harmonized System (GHS). Employee training is to be completed upon assignment to shop.

Please contact your hazardous communication program manager to determine when this training will be completed.

Hearing Conservation Program: Changes to the Navy hearing Conservation Program were announced through BUMED Note 6260, dtd 13 Dec 2012. Changes include the new Navy Occupational Exposure

Limit for Noise, set at 85 dBA with a 3 dB exchange rate, and the hearing protection device requirements have changed.

Spot checks of the hearing conservation program were re-evaluated. The majority of all tools and equipment that produce sound pressure levels (SPL) of 85 dBA or greater are labeled. Hearing protective devices (HPD) are required to be worn by all personnel whenever they work inside and/or enter designated noise hazardous areas. Employees are required to wear single HPD while operating or are near tools and/or equipment, regardless of duration, that produce SPL between 85 and 96 dBA. Double hearing protection is required when noise levels, regardless of duration, are between 96 and 100 dBA.

For sound pressure levels greater than 100 dBA, double hearing protection is required with administrative controls to bring the effective exposure to less than an 8-Hr TWA of 85 dBA. The majority of personnel mailto:occ-appt@med.navy.mil mailto:occ-appt@med.navy.mil were observed wearing appropriate hearing protection during the survey. Ensure that employees continue to wear double hearing protection while they use compressed air to dry component parts.

Training on the Hearing Conservation program for all personnel is required per reference (a).

Reference (a) is specific on the use of radios and/or head sets in noise hazardous areas. “The use of portable musical devices such as radio headphones, CD players, Walkman cassette/CD players (electronic musical devices), etc. is prohibited in industrial areas and in work areas where high noise hazards have been identified.”

Annual audiograms are required for employees who work in areas where the 8-hour time weighted average for noise is above the 85 dBA exposure limit.

Determinations to exclude individuals who are already included in a hearing conservation program will be made only by professionals qualified to provide or evaluate noise exposure assessments. In no case will regions or activities exclude individuals already included in a program based upon exposure assessment alone without concurrence from an audiologist or physician trained in occupational hearing loss. Such concurrence is necessary to avoid exclusion of personnel who are noise susceptible or at exceptional risk due to pre-existing hearing loss.

Respiratory Protection Program: The following items are noted:

Shop 93563 currently has 13 personnel enrolled in the command Respiratory Protection Program (RPP).

They were all trained and fit-tested as required by the program. Additional RPP has been implemented for use of tank 201 (N-Strip) due to ventilation system inoperable. The supplied air Bullard hood is in use until ventilation system is repaired/ replaced.

Personal Protective Equipment (PPE): PPE is readily available for all personnel. The PPE was observed to be in a clean, usable condition and properly stored. See workplace assessments for further

PPE guidelines. Exposure assessments are based without regard to the use of PPE. It is noted that street clothes were being worn when personnel were on plating lines.

Emergency Eyewash/Shower Stations: Pressurized plumbed eyewash stations are provided in all areas where required. These eyewash stations are clearly identified by highly visible signs. Continue to ensure that plumbed eyewash stations are activated weekly to verify proper operation and to flush the line of rust and other contaminants. Performance of weekly eyewash flushing/inspection is being documented.

Local Exhaust Ventilation (LEV): At the time of this survey an engineering contract was being submitted for approval to evaluate all ventilation systems in the plating shop. There were numerous LEV tank systems that did not meet the minimum requirements. The deficient LEV systems found are presented in tabular form following the worksite hazard assessment. Please review the comments regarding each LEV system for specific information pertaining to its operation. Various LEV systems that do not meet the minimum recommended slot velocity are deficiency rated with < 2000 FPM. Tank

201 (cyanide containing) ventilation duct was completing blocked and ventilation was not in adequate operation. It is recommended this tank not be used and have this operation moved to another tank with adequate ventilation compatible with other tanks chemicals. Per OSHA 29 CFR 1910.124 Dipping and

Coating operations, you may use a tank cover or material that floats on the surface of the liquid in a dip tank to supplement ventilation.

Design Review: Industrial hygienists are required to actively participate in all facility planning, design, construction, and acceptance projects including both special and military construction projects to ensure appropriate hazard control techniques are applied. Please ensure all special projects, engineering designs, and purchasing contracts involving potential health hazards such as toxic materials, radiation, noise, or other health hazards are sent to the Industrial Hygiene Department for review.

Changes in Workplace Processes: This report reflects conditions and operations at this activity during the survey period. Please notify the Industrial Hygiene Department when significant changes occur in work center operations, chemical use, work processes, SOP revisions, or construction that may adversely affect personnel health so review of documentation and evaluation may be conducted.

Repeat Technical Findings: Shop 93563: the entire ventilation system continues to have problems.

Currently a contract for repair or replace of plating shop is under review for an evaluation to include the ventilation system. The ventilation survey notes numerous deficiencies that are carried over from previous surveys. This evaluation is an ongoing engineering investigation.

Industrial Hygiene Customer Evaluation Form: A customer evaluation form is found in Appendix D of this report. Please complete this form as deemed necessary and return to the Naval Health Clinic

Industrial Hygiene Department Head via the FRC East Safety Office.

EVALUATION SUMMARY

PERIODIC INDUSTRIAL HYGIENE SURVEY

(Shop 93563)

New or Significantly Modified Work Center Operations/Processes?

No significant changes in operations/processes were identified. *

The following changes were identified:

Bullard Hood supplied air respiratory protection was implemented for use on plating lines where needed due to lack of procurement of proper RPP cartridges/filters.

*For purposes of this survey, “significant changes” are defined as workplace modifications that require a change in recommended medical surveillance enrollment, personal protective equipment, or exposure control measures

(ventilation, etc).

Program Findings and Recommendations

1. Medical Surveillance Program Status:

No Medical Surveillance is Recommended.

Medical Surveillance is Recommended.

No Change in Medical Surveillance Recommendations.

Medical Surveillance Recommendations have changed as follows:

Comments: Hand/ Arm Vibration medical surveillance is not required for blasting booths.

2. Hazardous Material Control and Management (HMC&M) Program:

AUL Y N N/A Accurate Y N

SDS Files Y N N/A Accurate Y N

HAZMAT Training Required? Y N

Other (lead, asbestos, etc): See Below. Y N

Comments: Empty tanks and tanks not in use should labeled as so and the ventilation slots and ducts shall be isolated. Tank labels in the plating shop are continuously updated. Shop personnel are potentially exposed to harmful chemical agents, noted reproductive hazards and carcinogens and are required to receive hazard training in accordance with OPNAVINST 5100.23G. There needs to be documentation that training for the materials listed on the AUL has been completed IAW OSHA and the Navy Safety Program. IH does not track training completion.

3. Management of Reproductive Hazards:

Reproductive Hazards Present? Y N

Any change from previous survey? Y N

Comments: Reproductive hazards identified by the Navy and Marine Corps Public Health Center (NMCPHC) have been identified in this shop and are noted. It is recommended that wherever possible the work center reduce, minimize, and/or eliminate the reproductive hazards and personnel exposure.

4. Noise and Hearing Conservation Program (HCP):

Are personnel recommended for the HCP? Y N

Are personnel receiving audiograms? Y N

Is hearing protection readily available? Y N

Is hearing protection used? Y N

Are personnel receiving annual training? Y N

Comments: All personnel shall wear appropriate hearing protection in the production areas labeled noise hazardous and when using noise hazardous tools and equipment. All shop personnel participate in the Noise Medical

Surveillance Hearing Conservation Program.

Determinations to exclude individuals who are already included in a hearing conservation program will be made only by professionals qualified to provide or evaluate noise exposure assessments. In no case will regions or activities exclude individuals already included in a program based upon exposure assessment alone without concurrence from an audiologist or physician trained in occupational hearing loss. Such concurrence is necessary to avoid exclusion of personnel who are noise susceptible or at exceptional risk due to pre-existing hearing loss.

5. Respiratory Protection:

Are respirators used to control workplace exposures? Y N

Are they effective? Y N N/A

Is the Respiratory Protection Program effective? Y N N/A

Comments: Due to ventilation issues with the various line tanks, and the lack of procurement for acid/gas cartridges/canisters for negative pressure respirators, the supplied air Bullard hoods were implemented where RPP is required on tank lines until ventilation repairs can be made and evaluated. Management must ensure procurement of correct Cartridge/ Filter as required. Exposure assessment is based on controls without regard to PPE.

6. Ventilation:

Are ventilation systems used to control workplace exposures? Y N

Are the systems effective and operating properly? Y N N/A

Comments: The ventilation survey for each shop is located after the worksite assessment. Contact the FRC East maintenance desk to issue a trouble ticket to correct any problems noted in the ventilation survey. The plating shop has a maintenance employee onsite to handle ventilation issues. It is noted this ventilation system is not working as designed and can never be adequately evaluated unless all parts are in place and functioning (e.g. LEV, makeup air, air return, scrubbers etc.) For example the LEV on any tank can be reading adequate at some point in time and then if doors or other systems are turned opened/closed or turned on/off the system does not adjust for differential pressure; therefore the airflow velocity will change significantly.

7. Ergonomics:

Ergonomic risk factors were identified pertaining to shop work office/computer work

Available equipment/furniture incorporates good ergonomic design? Y N N/A

Ergonomic training recommended? Y N

Comments and/or Recommendations: Personnel are at risk of developing Work Related Musculoskeletal Disorders

(WMSD) as they must assume many awkward postures and pick up and move parts weighing greater than 25 lbs.

Though a few ergonomically designed chairs were observed, most chairs were non- adjustable and any were in poor condition. Personnel are at risk of developing Work Related Musculoskeletal Disorders (WMSDs) as they must assume many awkward postures and stand for long periods of time.

It is recommended that all personnel receive initial and periodic ergonomic training including specific guidance identified in OPNAVINST 5100.23G, Ch. 23. Contact the FRC East Ergonomist representative for assistance with this training.

8. Additional Applicable Programs:

Lead Control Carcinogens

Asbestos Control Other

Comments: Stressors identified as known or suspected carcinogens by the Occupational Safety and Health

Administration (OSHA), the National Toxicology Program (NTP), the International Agency for Research on

Cancer (IARC), and the American Conference of Governmental Industrial Hygienists (ACGIH) are noted throughout this report.

Consultative or Special Surveys/Findings Since the Previous Survey: (check if none)

Changes to Specific Workplace Evaluations and Monitoring Plan

1. Workplace Assessments

No significant change to workplace assessment information was identified.

The following significant workplace assessment changes were identified:

Comments: The entire plating shop building 4035 as well as the ventilation system is under study for repair/replace. The ventilation survey notes numerous deficiencies that are carried over from previous surveys.

This evaluation is ongoing. Tank 201 ventilation duct was completing blocked and not in operation. It is recommended this tank not be used and have this operation moved to another tank adequate ventilation compatible with other tanks chemicals.

2. Exposure Assessment

New exposure data were obtained since the prior evaluation and are summarized below.

No change in any exposure assessment was identified as part of the survey or from sampling data.

The following changes in exposure assessments were identified

Comments: Exposure assessment when are based on engineering controls and without regard to PPE.

USE THE FOLLOWING EXPOSURE CODES:

ACCEPTABLE: One where the IH will not expect the SEG to be exposed above the OEL.

UNCERTAIN: Additional data needs to be collected to clarify exposure assessment. The IH should make an interim exposure assessment based on the observation of the process and/or professional judgments.

UNACCEPTABLE: One where the IH will expect the SEG to be exposed above the OEL.

SKIN: The material poses a skin absorption hazard.

REPRODUCTIVE HAZARD: The material is recognized by the navy as a reproductive hazard.

CARCINOGEN: The material contains > 0.1% of an OSHA, ACGIH, IARC, or NTP-recognized carcinogen.

American Conference of Governmental Industrial Hygienist (ACGIH) Carcinogen Categories:

A1= Confirmed Human Carcinogen

A2= Suspected Human Carcinogen

A3= Confirmed Animal Carcinogen with Unknown Relevance to Humans

A4= Not Classified as a Human Carcinogen

3. Findings and Recommendations

There were no significant findings identified during this survey that require corrective action.

The following significant findings were identified

Comments: Ventilation systems are not functioning as recommended by the ACGIH to control employee exposures.

Details may be found in the Shop Hazard Assessments. Follow-up evaluations following repairs/modifications are required.

4. Exposure Monitoring Plan. Required Exposure Monitoring requests are located in the report.

Exposure monitoring needs were identified.

No exposure monitoring needs were identified.

There are no changes to the previous Exposure Monitoring Plan.

Comments: Exposure monitoring is ongoing. Operations need further monitoring to fully validate exposure assessments. Please contact the Naval Health Clinic Industrial Hygiene Department at 466-0279/4564/3251 to schedule requested exposure monitoring identified in this report. All requested workplace exposure monitoring and historical data can be found at the end of this report.

WORKSITE HAZARD ASSESSMENT DATE: 1 JULY 2015

RECORDED BY: Sam Henson

INSTALLATION: FRC East

BUILDING: 4035, 137

SHOP NAME: 93563 Clean, Blast and Plate

SUPERVISOR: RONALD PERRY

PHONE: 464-8114

TOTAL PERSONNEL: 18

MALE: 18 FEMALE: 0

SHOP OPERATIONS: Glove box blasting and electroplating of aircraft components. This shop is comprised of a room, an abrasive blasting room, and the electroplating, anodize, stripping, degreasing tanks within Building 4035. There are two satellite areas, Building 133 and 137. There is a shot peening machine in the Blade shop area of Building 137.

There are alarm systems within Building 4035 for hydrogen cyanide as well as tank alarms. There are 7 sensors for the hydrogen cyanide alarm. There is a flashing light and a sound alarm that will alert at different levels. The auditory alarm is set off at ½ of the TLV-C, 2.5 ppm. When the alarms are activated, the building is evacuated and employees muster across the street. The Fire Department is called in to clear the building and determine if the Hazard exists or if the sensor picked up an interference gas. The tank alarms are set to go off when the temperature or fluid level is out of tolerance.

# Employees/

Operations and Associated

Hazards

Duration/

Frequency of

Exposure

CONTROLS

E: Existing

R: Recommended

Exposure

Assessment

3/Glove box blasting:

IND-001-14

2/Robotic Shot

Hazards: Cadmium, Lead, Chromium Metal, Chromates, Aluminum, Steel, Nickel, Silver, Iron, Beryllium, Copper, Nuisance

Particulates, Residual

Plating

Materials, Residual Paint, Noise

Vibration questionable

Blasting

1 personnel

Robotic Shot-

Peening up to 7 hrs./shift

E: Engineering: process is enclosed and Inline HEPA filters have been added to all machines

E: PPE: Safety glasses w/side shields, safety shoes, gloves, earplugs and earmuffs

E: RPP-voluntary 3M 9800 ½ face w/P100 filters

R: Hygiene practices

Noise, UNACCEPTABLE, noise dosimetry collected indicated exposures to noise are below the 8-hr TWA OEL of 85 dB(A). (Sample ID CP11-

0468/0469, CP11-0477, CP11-

0468-0469 all border line)

12-0542=87 dBA

EM Data must be refreshed

Cadmium, Lead, Chromium

Metal, Chromates

Aluminum, Steel, Nickel, Silver, Iron, Beryllium, Copper, Nuisance Particulates, Residual Plating

Materials, Residual Paint, ACCEPTABLE based on existing controls. (Sample ID

CP11-0456,0458,0478,0480)

Uncertain: Vibration.

Beryllium: Blasting personnel stated that beryllium parts are not received for blasting anymore. This information was not confirmed through production support/ production control. Continue to follow FRCE policy for handling and processing Be. parts until management confirm this information.

Compressed Air: Compressed air shall not be used to remove cadmium containing dust material from any surface unless the compressed air is used in conjunction with a ventilation system designed to capture the dust cloud created by the compressed air.

3/Remove parts from the media blast machines:

Hazards: Ergonomic

Residual nuisance blasting dusts (see above)

Blasting

2 hr/day

PPE: E: Safety glasses, safety shoes, hearing protection, nitrile gloves, E: RPP-voluntary 3M 9800 ½ face w/P100 filters

R: Hygiene practices

Ergonomic, ACCEPTABLE based on existing controls limited duration and task variety.

Residual Blasting dusts, ACCEPTABLE based on existing controls; parts cleaned prior to removing from ventilated booth.

# Employees/

Operations and Associated

Hazards

Duration/

Frequency of

Exposure

CONTROLS

E: Existing

R: Recommended

Exposure

Assessment

~18 personnel

Placing Parts in Oven:

Hazards: Thermal Burns

3 hr/shift E: PPE: Safety glasses, safety shoes, thermal gloves

E: Ovens are ventilated. Two ovens are walk-ins and should have a 2 man operation.

Thermal Burns, ACCEPTABLE based on existing safety controls.

2 personnel

Prepare the 55-gallon collection media drums for removal by HAZMAT personnel: Hazards:

Ergonomic, Residual

Nuisance Blasting Dust

1 hr/day

E: Drums have wheels to roll out and lids to enclose the dust.

E: PPE: safety glasses with side shields, hearing protection, safety shoes, gloves

Ergonomic, ACCEPTABLE based on existing controls.

Residual Blasting Dust, ACCEPTABLE based on existing controls. Containers sealed.

2 personnel

Transit near flight line and in noise hazardous areas.

Hazards: Noise >85dB(A)

Up to 2 hr/daily

E: PPE: Single hearing protection Noise exposure, UNACCEPTABLE based on existing noise dosimetry and sound level readings for SEGS exceeding the OEL. Additional monitoring for refresh data.

Comment for PPE during all tank line operations to include plating, stripping, cleaning, degreasing, anodizing etch: When employees enter the plating lines where potential splash or contact may occur (e.g. part dipping or coating, tank additions, etc.); the minimum PPE required is long sleeve (anywhere listed) coveralls, chemical safety apron, chemical protective gloves, chemical safety boots, chemical safety goggles and face shield.

3 personnel

Tank Additions & New

Tank Make-ups:

Hazards: Various chemicals in tank solutions, most as listed state:

NaOH-Powder

ChemMil- Liquid

Acids-Liquid

Boric Acid-Powder

Cyanides-powder

Tank 201 liquid CN

Chromic- Powder

15 minutes up to 2 days for chemical additions/week ly

4 hours to 2 days new solution/appro

x. 4 tanks a year

E: Engineering: local exhaust ventilation is available for most tanks.

E: PPE: Coveralls, chemical safety goggles, face shield, safety shoes, nitrile or neoprene gloves, and apron, E: RPP half-face respirator with combination filters depending on the chemicals added to the tanks.

Please refer to Shop respirator

SOP.

R: Hygiene practices

ACCEPTABLE with some uncertainty Overexposures are unlikely due to controls, but requires exposure monitoring sampling for the various tank make-ups to verify. At this time we have no EM for specific tank additions.

17 personnel

Use of compressed air:

Hazards: Noise >100dBA

Daily/ intermittent exposure

E: PPE: Double Hearing

Protection; ear plugs and circumaural muffs

Noise exposure, UNACCEPTABLE based on existing noise dosimetry and sound level readings exceeding the OEL. Additional EM require

12 personnel

Chrome Stripping:

IND-002-14

Hazards: Sodium

Hydroxide, Chromium

Trioxide

1hr./shift intermittent

E: Engineering: Lateral Exhaust

Ventilation

E: PPE: Chemical safety goggles face shield, nitrile or neoprene gloves and apron, safety shoes, coveralls.

R: Hygiene practices

Sodium Hydroxide, ACCEPTABLE, based on existing controls and EM sample results

Chromium Trioxide, ACCEPTABLE, based on controls (see EM results)

Operations and Associated

Hazards

Duration/

Frequency of

Exposure

CONTROLS

E: Existing

R: Recommended

Exposure

Assessment

14 personnel

Chrome Plating:

IND-004-02

Hazards: Sulfuric Acid, Nitric Acid, Sulfuric Acid, Hydrofluoric Acid, chromium, hexavalent chromium (CrVI, Cr(III)) up to 8 hrs./shift/ intermittent

E: Engineering: Lateral Exhaust

Ventilation

E: PPE: Chemical safety goggles face shield, nitrile & neoprene gloves, neoprene apron, safety shoes, coveralls.

E: First Aid kit for HF

R: Improved Housekeeping

Sulfuric Acid, ACCEPTABLE based on controls and EM results; Nitric Acid, ACCEPTABLE, Hydrofluoric

Acid, ACCEPTABLE, based on controls and EM results

CrVI, ACCEPTABLE, EM sample results are below detectable limits (CP11-0510)

(see sample results table)

Comments: Wipe sample results indicate the need for better housekeeping in the chromium plating and stripping areas.

Chrome plating operations are among the most likely for overexposures to CrVI since the process is the least efficient.

Additional EM will be conducted to ensure results are below the OEL.

14 personnel

Cadmium Stripping:

Hazards: Sodium

Hydroxide Sodium cyanide, Hydrochloric Acid less than 30 min. over tank/shift/inter mittent

E: Engineering: Lateral exhaust ventilation

E: PPE: Chemical safety goggles face shield, safety shoes, nitrile or neoprene gloves and apron, coveralls. R: Hygiene practices

Sodium Hydroxide, ACCEPTABLE

Ammonium Nitrate, ACCEPTABLE, controls and

EM results.

14 Personnel

Cadmium Plating:

Type I stop plate

Type II dichromate protect

Hazards: Sodium

Hydroxide for finger tarnish

Sodium Carbonate, Sodium

Cyanide;

Hydrochloric Acid during activated rinse up to 7 hrs./shift/ intermittent.

Personnel do not stay on the line for extended periods.

E: Engineering: Lateral exhaust ventilation

E: PPE: Chemical safety goggles face shield, safety shoes, nitrile or neoprene gloves and apron, coveralls.

R: Hygiene practices

Sodium Hydroxide, ACCEPTABLE, based on recent sampling; Sodium

Carbonate, ACCEPTABLE

Hydrochloric Acid, ACCEPTABLE; EM based on results and controls

Sodium Cyanide, ACCEPTABLE Cadmium

Cyanide, ACCEPTABLE;

Cadmium Oxide, ACCEPTABLE

12 personnel

Silver Stripping:

Hazards: Sodium Cyanide, Sodium Hydroxide, Sulfuric

Acid, Nitric Acid

Silver Strike:

Silver Cyanide

3/week for 30 min.

E: PPE: Chemical splash goggles face shield, nitrile or neoprene gloves and apron, safety shoes, long sleeve coveralls.

R: Hygiene practices

Sodium Cyanide, ACCEPTABLE based on current engineering controls and process; Sodium Phosphate, ACCEPTABLE; based on current engineering controls and process.

Nitric Acid, ACCEPTABLE based on current engineering controls and process method.

Sodium Hydroxide, ACCEPTABLE based on recent sampling results

Silver Cyanide

ACCEPTABLE based on current engineering controls and process.

Operations and Associated

Hazards

Duration/

Frequency of

Exposure

CONTROLS

E: Existing

R: Recommended

Exposure

Assessment

12 personnel

Silver Plating:

Hazards: Sodium

Hydroxide, Sodium

Carbonate, Hydrochloric

Acid, Sodium Cyanide, Silver

Cyanide, Potassium

Cyanide, Potassium

Carbonate, Potassium

Hydroxide

6-12 parts/day face shield, nitrile or neoprene gloves and apron, safety shoes, coveralls.

R: Hygiene practices

Sodium Hydroxide, ACCEPTABLE, based on existing sample data; Sodium

Carbonate, ACCEPTABLE;

Hydrochloric Acid, ACCEPTABLE; Sodium

Cyanide ACCEPTABLE;

Silver Cyanide, ACCEPTABLE; Potassium

Cyanide, ACCEPTABLE;

Potassium Carbonate, ACCEPTABLE; Potassium

Hydroxide ACCEPTABLE

2 personnel

Nickel Stripping

Hazards: EN-STRIP-S solution of sodium cyanide and sodium hydroxide, sodium nitrobenzene

2 parts/week

2 hrs. over tank/week

E: Engineering: Lateral Exhaust

Ventilation

E: PPE: Chemical safety goggles face shield, nitrile or neoprene gloves and apron, safety shoes, coveralls.

R: Hygiene practices

EN-STRIP-S, ACCEPTABLE

Based on sampling data and controls when working.

2 persons

Nickel Plating

Hazards: Sodium

Hydroxide, Sodium

Carbonate, Sulfuric Acid, Hydrochloric Acid, Sulfuric

Hydrofluoric Acid, Nickel

Chloride, Sodium

Hypophosphite, Ammonium

Hydroxide, Nickel Sulfate, Nickel

Sulfamate, Boric Acid

1-1.5 hrs/day

E: Engineering: Lateral Exhaust

E: PPE: Chemical splash goggles face shield, nitrile or neoprene gloves and apron, safety shoes, coveralls.

E: First Aid kit for HF

R: Hygiene practices

Sodium Hydroxide, ACCEPTABLE, based on recent sample data; Sodium

Carbonate, ACCEPTABLE;

Sulfuric Acid, Hydrochloric

Acid, ACCEPTABLE; Sulfuric

Hydrofluoric Acid, ACCEPTABLE; Nickel

Chloride, ACCEPTABLE

Sodium Hypophosphite, ACCEPTABLE; Ammonium

Hydroxide, ACCEPTABLE

Nickel Sulfate, ACCEPTABLE; Nickel

Sulfamate, ACCEPTABLE;

Boric Acid ACCEPTABLE

UNCERTAIN; Need more EM

2 personnel

Nickel canister filter change operations behind

T-127/131 X2 ea.:

Hazards: Nickel, Acid Gas

2hrs/quarter E: Engineering: Lateral Exhaust

Ventilation

E: PPE: Nitrile gloves, chemical safety goggles and face shield, apron, safety shoes/ boots

R: Hygiene practices

Nickel, ACCEPTABLE Acid

Gases, ACCEPTABLE

Based on controls and EM results.

Operations and Associated

Hazards

Duration/

Frequency of

Exposure

CONTROLS

E: Existing

R: Recommended

Exposure

Assessment

1 person

Copper Plating &filter change

Hazards: Sodium

Hydroxide, Sodium

Carbonate, Hydrochloric

Acid, Sodium Cyanide, Copper Cyanide

1 hr/week face shield, nitrile or neoprene gloves and apron, safety shoes, coveralls.

R: Hygiene practices

Sodium Hydroxide, ACCEPTABLE, based on recent sampling; Sodium

Carbonate, ACCEPTABLE;

Hydrochloric Acid, ACCEPTABLE; Sodium

Cyanide, ACCEPTABLE

Copper Cyanide

ACCEPTABLE

2 personnel

Tin Plating:

Hazards: Sodium Acetate, Sodium Stannate, Hydrogen

Peroxide, Sodium

Hydroxide

< 30 minutes

2/month gloves and apron, safety shoes, coveralls.

R: Hygiene practices

Sodium Acetate, ACCEPTABLE; Sodium

Stannate, ACCEPTABLE;

Hydrogen Peroxide, ACCEPTABLE; Sodium

Hydroxide ACCEPTABLE

8-10 personnel

Anodize Stripping:

Hazards: Sodium

Hydroxide, Phosphoric

Acid, Isoprep 184, phosphoric acid based solution (Chemidize 740)

1-2/year gloves, and apron, safety shoes, coveralls.

R: Hygiene practices

Sodium Hydroxide, ACCEPTABLE, based on recent sampling results;

Phosphoric Acid, Isoprep 184

ACCEPTABLE; phosphoric acid based solution (Chemidize

740) ACCEPTABLE

3 personnel

Anodizing Aluminum:

Hazards: Sodium

Fluoroborate, Potassium

Fluorozirconate, Sulfuric

Acid, Phosphoric Acid, chromic acid up to 7 hrs./shift/daily gloves, and apron, safety shoes coveralls.

R: Hygiene practices.

Sodium Fluoroborate, ACCEPTABLE; Potassium

Fluorozirconate, ACCEPTABLE Sulfuric Acid, ACCEPTABLE; Phosphoric

Acid ACCEPTABLE

1 person

Brush Anodize:

Hazards: Chromic Acid, Sulfuric Acid

3 hrs./shift/2 times a week/ intermittent

PPE: Chemical safety goggles, face shield, nitrile or neoprene gloves and apron, safety shoes, coveralls.

R: Hygiene practices

Chromic Acid, ACCEPTABLE

Sulfuric Acid, ACCEPTABLE

Based on controls and EM results.

5 personnel

Phosphate Coating:

Hazards: Hydrochloric

Acid, Manganese

Phosphate, Chromic Acid, Oil

1.5 hrs/month Engineering: Lateral exhaust ventilation

PPE: Chemical splash goggles face shield, nitrile or neoprene gloves, and apron, safety shoes, and coveralls.

R: Hygiene practices

Hydrochloric Acid, ACCEPTABLE; Manganese

Phosphate, ACCEPTABLE;

Chromic Acid, ACCEPTABLE; Oil, ACCEPTABLE Based on controls and SEG EM results.

Operations and Associated

Hazards

Duration/

Frequency of

Exposure

CONTROLS

E: Existing

R: Recommended

Exposure

Assessment

5 persons

Passivation:

Hazards: Nitric Acid

2 hrs./shift

Engineering: Lateral exhaust

PPE: Chemical splash goggles face shield, nitrile or neoprene gloves and apron, safety shoes, coveralls. R: Hygiene practices

Nitric Acid, ACCEPTABLE, limited duration and frequency.

Will be sampled to confirm acceptable exposure assessment.

14-15 personnel

Chem-Mil Line:

Hazards: Sulfuric Acid

Etch, Hydrofluoric Acid, Nitric Acid, Sodium

Hydroxide, and Chromic acid minutes/day

3 days/week

Engineering: Lateral exhaust ventilation slightly <2000FPM

Vent Smoke=good

E: PPE: Chemical splash goggles, face shield, nitrile or neoprene gloves and neoprene apron, safety shoes, coveralls, E: Voluntary; Full-Face APR with Acid-gas/OV P100 filters or supplied air for Tank 157.

E: First Aid kit for HF

R: Hygiene practices

Sulfuric Acid Etch, Hydrofluoric

Acid, Nitric Acid and Chromic acid ACCEPTABLE, Tank 157. Sodium Hydroxide:

UNCERTAIN, Employees report irritation during use, ventilation may not always be efficient to control Sodium Hydroxide mist.

EM required

14-15 personnel

Wax Dipping & Stripping

Operations:

Hazards: Petroleum Based

Aliphatic Hydrocarbon Wax

Heavy Paraffinic Petroleum

Distillates, thermal burns

E: Engineering: Lateral exhaust ventilation

E: PPE: Safety glasses w/side shields, nitrile or neoprene gloves, apron, safety shoes, coveralls, face shield

R: Hygiene practices

Petroleum Based Aliphatic

Hydrocarbon Wax Heavy

Paraffinic Petroleum Distillates, ACCEPTABLE; thermal burns, ACCEPTABLE, with continued use of existing controls

17 personnel

Brush Application of Stop-

Off Lacquer:

Hazards:

Perchloroethylene, Methyl

Isobutyl Ketone, Toluene, Methyl Ethyl Ketone, Xylene, Propylene Glycol

Methyl Ether Acetate, n-

Butyl Acetate

1hr/month shields, butyl rubber gloves, apron, safety shoes, coveralls

R: Hygiene practices

All hazards listed, ACCEPTABLE, with continued use of existing controls

1-2 personnel

Wiping Down Parts:

Hazards: Varsol, spray bottle

20-30 shields, chemical goggles, nitrile or neoprene gloves, apron, coveralls. R: Hygiene practices

Varsol, ACCEPTABLE, with continued use of existing controls in ventilated space.

1-2 personnel

Hot Washing Parts:

Hazards: Hot detergent wash water (Duraclean 282)

20-30

E: PPE: Safety glasses w/side shields, chemical goggles and face shield, nitrile gloves, aprons, safety shoes, coveralls.

R: Hygiene practices

Duraclean 282, ACCEPTABLE, with continued use of existing controls

Operations and Associated

Hazards

Duration/

Frequency of

Exposure

CONTROLS

E: Existing

R: Recommended

Exposure

Assessment

2 personnel

Ion Vapor Deposition (IVD)

Plating (Bldg. 133):

Applies aluminum (cross between welding and plating) in a vacuum chamber using argon and aluminum wire.

Hazards: Aluminum, argon

< 8 hrs/day

E: Engineering: Enclosed

Process, exhaust to the exterior.

E: PPE: Safety glasses w/side shields, safety shoes

Aluminum Fume, ACCEPTABLE, with continued use of existing controls enclosed isolated process.

2 personnel

Select/Brush Plating and anodizing:

Hazards: Sodium

Hydroxide, Copper, Copper

Formate, Nickel, Ethylenediamine, Methane, Sulfonic Acid, Copper, chromium, Sulfate, Stannous Sulfate, Cadmium, Cadmium Oxide, Cadmium

Sulfate, Silver, Silver

Cyanide

1 hr / week

E: Engineering: local exhaust ventilation is available for use in the Prop Shop

E: PPE: Chemical splash goggles, nitrile & neoprene gloves, plastic aprons, safety shoes, coveralls

R: lateral exhaust ventilation on top of nearby unused vent tank

R: Hygiene practices

ACCEPTABLE for all chemicals listed, exposure monitoring collected. See Summary table at the end of the worksite assessment.

10-12 personnel

Manufacturing Lead

Anodes:

Hazards: Lead oxy-acetylene torch

UV Light minutes/month

E: Engineering: ventilated welding booth

E: PPE: Half-face respirators w/P100, coveralls, gloves, canvas aprons, safety glasses w/side shields, welding shield

R: 3-5 level filter lenses

R: Hygiene practices

Lead, UNACCEPTABLE/

UNCERTAIN, based on lack of sampling data.

EM required.

18 personnel

Storing and moving hazardous material:

Hazards: Nickel Acid, HFE-72DE, Sodium

Cyanide briquettes, EN

STRIP-S, Chromic Acid

Flake, Sulfuric Acid 93%, Sodium Hydroxide Beads, Daraclean 282GF, Niklad

794B, Barrett SNR-24, Cadmium Metal Cast Sticks, Sodium Carbomate anhydrous, Isoprep 740

1/week

E: PPE: Safety glasses, safety shoes, and hearing protection

R: Storage Containers for all supplies stored in shop.

R: Hygiene practices

ACCEPTABLE for all hazards listed, based on use of existing and recommended controls

Operations and Associated

Hazards

Duration/

Frequency of

Exposure

CONTROLS

E: Existing

R: Recommended

Exposure

Assessment

7 personnel

Hydrofluoroether Vapor

Degreasing (HFE-72DE

Cleaning Compound):

Hazards: Methyl nonafluoroisobutylether, Methyl nonafluorobutyl ether

1,2 – Trans-dichloroethylene

2-3 hrs/shift

PPE: Safety glasses w/side shields, face shield, Otto fuel gloves, steel toe rubber boots, general ventilation, cooling coils, earplugs.

E: Engineering: Lateral exhaust ventilation

R: Hygiene practices

1,2 – Trans- dichloroethylene

Methyl nonafluoroisobutylether, Methyl nonafluorobutyl ether, ACCEPTABLE

Cooling coils at four feet below the tank opening keep the vapors from rising out of the tank and into the personnel’s breathing zone as required.

2 personnel

Travel to the Basement for various activities:

Hazards: Liquid from plating tanks dripping through, various materials as noted above minutes/week

E: PPE: Safety glasses, safety shoes, and hearing protection, coveralls

E: Work practice: employees are notified when other personnel enter the basement and work is halted to avoid spilling materials into the basement.

R: Hygiene practices

ACCEPTABLE, based on existing controls.

2 personnel

Shot peen Building 4035 and Building 137:

Hazards: Heavy Lifting and noise

3 days/week

Up to 8 hours/day

E: Engineering: Lifting aids, enclosed process

E: PPE: Double Hearing protection during operation, safety glasses, nitrile gloves when handling parts

R: Hygiene practices

ACCEPTABLE, Based on existing controls

All employees/General

Shop Operations:

Hazard: Heat Stress

< 8 hrs. E: Take Frequent Breaks, fluid intake and good nutrition, loose fitting clothing; air movement < o F

R: Hygiene practices

ACCEPTABLE, Based on existing controls

Recommendations/Comments:

Observation: HAZMAT, bulk is stored in the shop on the shop floor on a temporary basis until ready to add to tanks during additions or refill. The only chemical stored in secure lockers is the cyanide (which is stored in regular foot locker); the rest of the chemicals are left on pallets.

Recommendations: Install approved HAZAMT lockers or other legal means of storage in the shop for proper storage of hazardous chemicals.

Observation: At times street clothes are worn while working on the plating lines.

Recommendation: Street clothes are not permitted to be worn while working on the plating lines. Hygiene facilities shall be provided per 29 CFR 1910.124(g)(1) that allow for “Locker space or other storage space to prevent contamination of the employee's street clothes”. Personnel stated that their change room was on the end of B-133 which is not convenient. It is recommended that the change room hygiene facility directly outside of B-4035 be designated for this shop.

Observation: First Aid kits are required to be available when working with dip tanks, per 29 CFR 1910.124 (h)(3).

Calcium gluconate jell, which is used to treat hydrofluoric acid burns, is readily available for employee to use in emergencies. First Aid training is required.

Recommendation: Continue to keep a fully stocked First Aid kit on hand in the Plating Shop. Ensure employees are compliant with First Aid training.

Observation: Intermittent hazardous noise exposure occurs on the plating lines and in the blast area. Personnel are required to wear hearing protection during noise levels which meet or exceed 85 dB(A). However, not all employees are in compliance.

Recommendation: Ensure employees know what processes require hearing protection, and the level of protection required. Double hearing protection is required when SLM readings are greater than 96 dB(A). Additional noise dosimetry exposure monitoring will be conducted to refresh data.

Observation: The Industrial Hygiene department has requested repeatedly to be informed of certain processes in order to obtain sample data. Sample data needs to be collected to complete exposure assessments.

Recommendation: Please review the EM plan on pages of this report and call the IH department before the processes take place in order (preferably 1-2 days in advance) to schedule the required monitoring. Call 466-2146.

Observation: Ventilation in the Plating shop ventilation system as whole is not working as designed and cannot be fully or adequately evaluated unless all parts are in place and functioning (i.e. tank LEV, make-up air, return-air, scrubbers etc.) for example the LEV on any tank can be reading adequate at some point in time and then if doors or other systems are turned opened/closed or turned on/off the system does not adjust for differential pressure; therefore the airflow volume and velocity will change significantly.

Recommendation: Ensure includes requirements for entire building ventilation system to operate as designed to comply with ACGIH minimum recommendations.

PERSONAL PROTECTIVE EQUIPMENT (PPE) SUMMARY

WORK

PROCESS

HEARING

PROTECTION

FACE

AND/OR EYE

PROTECTION

CLOTHING

PROTECTION

HAND

PROTECTION

RESPIRATORY

PROTECTION

93563 Glove

Box

Blasting/Shot

Peening

Operations

Single Safety glasses N/R Nitrile/ Leather N/R

Voluntary during clean out-

½ face w/ P100

93563 Tank

Operations

Single when required

Safety glasses with face shield

Rubber Apron/

Gauntlets

Butyl rubber

Nitrile

Green Fuel

N/R

Temporary

Bullard hood for

T-201 and FF / acid-gas P100 for T-157

93653 Tank

Additions/

Buildups w/

Nitric, Sulfuric, Hydrochloric, &

Chromic Acids, Cyanide, Cadmium

Single when required

Double when using compressed air.

Safety Goggles and Face

Shield

Rubber Apron/

Gauntlets

Butyl rubber

Full-Face with

Multi-

Gas/Vapor

Cartridges and

Particulate Filter

Combination or supplied air

Bullard hoods

*Required when cleaning out chip bins

**Leather gloves shall be used while handling beryllium copper material but not during the machining process.

Protective footwear is required at all times.

N/R – None Required

Note: PPE requirements are provided in the shop hazard assessment.

LISTING OF CHEMICALS WITH SPECIAL EMPHASIS HEALTH HAZARDS

SHOP 93563

Skin Notations

Carcinogens

Reproductive Hazards

Hydrogen Cyanide and Cyanide

Salts

Hydrogen Fluoride

Beryllium

Hexavalent Chromium

Cadmium

Ultraviolet Radiation

Nickel

Beryllium

Strong Inorganic Acid Mists

Containing Sulfuric Acid

Lead

Toluene

Cadmium

Nickel

1- As indicated in the 2015 TLVs and BEIs published by the American Conference of Governmental Industrial

Hygienists (ACGIH).

2- 2014 13 th

Report on Carcinogens, published by the U.S. Department of Health and Human Services Public Health

Service National Toxicology Program (Substances Known to be Human Carcinogens) and ACGIH.

3- Navy and Marine Corps Public Health Center Technical Manual TM-OEM-6260.01C

EXPOSURE MONITORING PLAN

DATE: 26 AUGUST 2015

RECORDED BY: Sam Henson

INSTALLATION: FRC East

BUILDING NUMBER: 4035

SHOP NAME: 93563 Clean, Blast and Plate Shop

SUPERVISOR: RONALD PERRY

PHONE: 464-8114

TOTAL PERSONNEL: 18

MALE: 18 FEMALE: 0

Operation Potential Hazard #No. Samples Sample location

Method Sample

Freq/Yr

Plating/Blasting Areas Noise 2 TWA each HZ ND, DR

Vibration

Chrome Strip Tanks Cr(VI) 1 TWA BZ OSHA ID-215 2

Chrome Plate Tanks

** see note below

NOx 1 TWA BZ OSHA ID-190 2

HF 1 TWA, 2C BZ OSHA 165SG 2

Cr(VI) 1 TWA BZ OSHA ID-215 4

H2SO4 1 TWA, 2C BZ NIOSH 6013 2

Cadmium Plate

** see note below

Hydrochloric Acid

(HCL)

1 TWA BZ F 2

Sulfuric acid 1 TWA BZ F 2

CN 2 C BZ NIOSH 6010 2

Cadmium 1 TWA BZ OSHA ID-206 4

Silver Strip NaCN, 2 C BZ NIOSH 6010 2

Silver Plate AgCN 2 C BZ NIOSH 6010 2

Nickel Plate Nickel, Sulfuric Acid 1 TWA each BZ OSHA ID-206 2

Chemical Mill Line

(Tank 157 large parts and any other tanks on line that have a tendency to off-mist Sulfuric)

Sulfuric Acid 1 TWA each BZ OSHA ID-165SG

NIOSH 7903

OSHA ID-165SG

OSHA ID-206

Nitric Acid, hydrofluoric

Acid

**Sodium Hydroxide

Brush Anodize CrO3, Hexavalent

Chromium

1 TWA BZ OSHA ID-215 2

Tank Additions

OPS Done on Mondays

Find out on Prior Friday

Afternoon

Ask for Specific Haz 1 TWA BZ 2

Tank Makeup/Drain-refill

OPS Done on Mondays

Find out Friday

Ask for Specific Haz 1 TWA BZ 2

Lead Anode Welding Lead 1 TWA BZ OSHA ID-206 2

**Prior to sampling ask artisan of operation on each line which tanks he will be using to ensure to use the proper filter.

*All will be worst case scenarios, 8 hour TWA not required except for cadmium and Hexavalent chromium

RECOMMENDED MEDICAL SURVEILLANCE PROGRAMS

Shop 93563

The medical surveillance list does not medical surveillance codes that are not exposure based such as a specialty code or past exposure code for work specific requirements (e.g. forklift, Crane, DOT, past asbestos etc.). Employees shall notify their management of current/past or exposure based medical surveillance required when working for other shops (e.g. field teams, loaned to shops).

Recommended Program Work Operation # Emp. Rationale

#503 - Noise Pneumatic tool use, blasting All Noise Dosimetry; Sound level readings

#716 – Respirator User Electroplating, tank build up All Required Program

#156 – Hydrogen

Cyanide/Cyanide Salts

Electroplating All Skin contact

#133 – Hexavalent Chromium Electroplating All Skin and Mucus membrane visual check for Chrome sores

#124 - Cadmium Electroplating All Required Program

Appendix A: Historical Air Sampling

Clean, Blast and Plate Historical Air Sampling Data.

Field

Sample

IDs

Sample

Date Hazard TWA Value UCL OEL OEL Value

11-0456 2011/04/05

CHROMIUM(VI)

- Total

0.000052938 mg/m3

0.00053821 mg/m3

OSHA 8 hr TWA

(CHROMIUM(VI)

COMPOUNDS,

AS CR)

0.0050 mg/m3

11-0458 2011/04/05

CADMIUM -

Total

0.00033275 mg/m3

0.0085578 mg/m3

OSHA 8 hr TWA

(CADMIUM AND

COMPOUNDS AS

CD TOTAL)

0.0050 mg/m3

11-0458 2011/04/05 LEAD - Total 0.00053475 mg/m3

0.082785 mg/m3

ACGIH 8 hr TWA

(LEAD AND

INORGANIC

COMPOUNDS AS

PB)

0.05 mg/m3

11-0458 2011/04/05

BERYLLIUM -

Total

0.000026737 mg/m3

0.0033167 mg/m3

Navy 8 hr TWA

(BERYLLIUM

METAL AND

COMPOUNDS,

AS BE)

0.0020 mg/m3

11-0458 2011/04/05

NICKEL

METAL - Total

0.00053475 mg/m3

0.024535 mg/m3

ACGIH 8 hr TWA

(NICKEL,

INSOLUBLE

COMPOUNDS,

AS NI) Total

0.2 mg/m3

11-0480 2011/04/11

BERYLLIUM -

Total

0.000022686 mg/m3

0.0033127 mg/m3

Navy 8 hr TWA

(BERYLLIUM

METAL AND

COMPOUNDS,

AS BE)

0.0020 mg/m3

11-0480 2011/04/11

NICKEL

METAL - Total

0.00056716 mg/m3

0.024567 mg/m3

ACGIH 8 hr TWA

(NICKEL,

INSOLUBLE

COMPOUNDS,

AS NI) Total

0.2 mg/m3

11-0480 2011/04/11 LEAD - Total 0.00056716 mg/m3

0.082817 mg/m3

OSHA 8 hr TWA

(LEAD AND

INORGANIC

COMPOUNDS AS

PB)

0.05 mg/m3

11-0480 2011/04/11

CADMIUM -

Total

0.000022686 mg/m3

0.0082477 mg/m3

OSHA 8 hr TWA

(CADMIUM AND

COMPOUNDS AS

CD TOTAL)

0.0050 mg/m3

11-0478 2011/04/11

CHROMIUM(VI)

- Total

0.000039701 mg/m3

0.00012195 mg/m3

OSHA 8 hr TWA

(CHROMIUM(VI)

COMPOUNDS,

0.0050 mg/m3

Field

Sample

IDs

Sample

Date Hazard TWA Value UCL OEL OEL Value

AS CR)

12-1613 2012/08/15

NICKEL

METAL

0.0026562 mg/m3

0.026656 mg/m3

ACGIH 8 hr TWA

(NICKEL,

INSOLUBLE

COMPOUNDS,

AS NI) Total

0.14 mg/m3 Δ

12-1613 2012/08/15 CADMIUM

0.000037565 mg/m3

0.0082626 mg/m3

OSHA 8 hr TWA

(CADMIUM AND

COMPOUNDS AS

CD TOTAL)

0.0035 mg/m3

12-1613 2012/08/15 COBALT

0.00062608 mg/m3

0.0030261 mg/m3

ACGIH 8 hr TWA

(COBALT

METAL AND

INORGANIC

COMPOUNDS AS

CO)

0.014 mg/m3

12-1613 2012/08/15 ALUMINUM

0.011688 mg/m3

0.14169 mg/m3

ACGIH 8 hr TWA

(ALUMINUM

METAL,

RESPIRABLE

DUST) Respirable

0.70000 mg/m3

12-1611 2012/08/15 CHROMIUM(VI)

0.000040069 mg/m3

0.00037976 mg/m3

OSHA 8 hr TWA

(CHROMIUM(VI)

COMPOUNDS,

AS CR)

12-1641 2012/08/16 CHROMIUM(VI)

0.000035391 mg/m3

0.000092966 mg/m3

OSHA 8 hr TWA

(CHROMIUM(VI)

COMPOUNDS,

AS CR)

12-1643 2012/08/16 CADMIUM

0.000030335 mg/m3

0.0057878 mg/m3

OSHA 8 hr TWA

(CADMIUM AND

COMPOUNDS AS

CD TOTAL)

12-1643 2012/08/16 COBALT

0.00050558 mg/m3

0.0021856 mg/m3

ACGIH 8 hr TWA

(COBALT

METAL AND

INORGANIC

COMPOUNDS AS

CO)

0.014 mg/m3

12-1643 2012/08/16 ALUMINUM

0.0028464 mg/m3

0.086846 mg/m3

ACGIH 8 hr TWA

(ALUMINUM

METAL,

RESPIRABLE

DUST) Respirable

12-1643 2012/08/16

NICKEL

METAL

0.00143 mg/m3

0.08543 mg/m3

OSHA 8 hr TWA

(NICKEL

Field

Sample

IDs

Sample

Date Hazard TWA Value UCL OEL OEL Value

METAL)

11-0456 2011/04/05

CHROMIUM(VI)

- Total

0.000052938 mg/m3

0.00053821 mg/m3

OSHA 8 hr TWA

(CHROMIUM(VI)

COMPOUNDS,

AS CR)

0.0050 mg/m3

11-0458 2011/04/05

CADMIUM -

Total

0.00033275 mg/m3

0.0085578 mg/m3

OSHA 8 hr TWA

(CADMIUM

AND

COMPOUNDS

AS CD TOTAL)

0.0050 mg/m3

11-0458 2011/04/05

BERYLLIUM -

Total

0.000026737 mg/m3

0.0033167 mg/m3

Navy 8 hr TWA

(BERYLLIUM

METAL AND

COMPOUNDS,

AS BE)

0.0020 mg/m3

11-0458 2011/04/05 LEAD - Total 0.00053475 mg/m3

0.082785 mg/m3

ACGIH 8 hr TWA

(LEAD AND

INORGANIC

COMPOUNDS

AS PB)

0.05 mg/m3

11-0458 2011/04/05

NICKEL

METAL - Total

0.00053475 mg/m3

0.024535 mg/m3

ACGIH 8 hr TWA

(NICKEL,

INSOLUBLE

COMPOUNDS,

AS NI) Total

0.2 mg/m3

11-0480 2011/04/11

BERYLLIUM -

Total

0.000022686 mg/m3

0.0033127 mg/m3

Navy 8 hr TWA

(BERYLLIUM

METAL AND

COMPOUNDS,

AS BE)

0.0020 mg/m3

11-0480 2011/04/11

NICKEL

METAL - Total

0.00056716 mg/m3

0.024567 mg/m3

ACGIH 8 hr TWA

(NICKEL,

INSOLUBLE

COMPOUNDS,

AS NI) Total

0.2 mg/m3

11-0480 2011/04/11 LEAD - Total 0.00056716 mg/m3

0.082817 mg/m3

OSHA 8 hr TWA

(LEAD AND

INORGANIC

COMPOUNDS

AS PB)

0.05 mg/m3

11-0480 2011/04/11

CADMIUM -

Total

0.000022686 mg/m3

0.0082477 mg/m3

OSHA 8 hr TWA

(CADMIUM

AND

COMPOUNDS

AS CD TOTAL)

11-0478 2011/04/11 CHROMIUM(VI) 0.000039701 0.00012195 OSHA 8 hr TWA 0.0050 mg/m3

Field

Sample

IDs

Sample

Date Hazard TWA Value UCL OEL OEL Value

- Total mg/m3 mg/m3 (CHROMIUM(VI)

COMPOUNDS,

AS CR)

12-0424, 12-0425

2012/03/27 CHROMIUM(VI)

0.000038184 mg/m3

0.000041924 mg/m3

OSHA 8 hr TWA

(CHROMIUM(VI)

COMPOUNDS,

AS CR)

0.0050 mg/m3

12-1249 2012/06/12

NICKEL

METAL

0.00061872 mg/m3

0.18062 mg/m3

ACGIH 8 hr TWA

(NICKEL

METAL)

Inhalable

1.5 mg/m3

12-1249 2012/06/12 CADMIUM

0.00093625 mg/m3

0.0091612 mg/m3

OSHA 8 hr TWA

(CADMIUM

AND

COMPOUNDS

AS CD TOTAL)

0.0050 mg/m3

12-097 2012/06/12 POTASSIUM

0.0065074 mg/m3

0.12651 mg/m3

12-097 2012/06/12 SILVER METAL

0…