Surface Lead Monitoring Survey Report 

at 

Missouri Army National Guard 

Armory 

475 South Davis 

Marshall, Missouri 

Survey Date: June 13, 2012

for

Department of the Army 

National Guard Bureau 

Region West Industrial Hygiene Office 

NGB-AVN-S1

Performed by 

U.S. Public Health Service 

Federal Occupational Health 

August 31, 2012

BEST AVAILABLE COPY BEST AVAILABLE COPY FOIA Requested Record #J-15-0085 (MO) 

Released by National Guard Bureau 

Page 1 of 43
Surface Lead Monitoring Survey Marshall Armory 

Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 2 

Table of Contents 

I. Executive Summary 

II. Introduction 

III. Site Description 

 

IV. Scope of Work 

V. Findings, Discussion, and Recommendations 

Appendices 

A. Point of Contact (POC) List 

B. Laboratory Result Reports and Chain of Custody Sheets 

C Occupational Health Risk Assessment Codes (RACs) 

 

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Surface Lead Monitoring Survey Marshall Armory 

Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 3 

I. Executive Summary 

At the request of the National Guard Bureau (NGB) Region West Industrial Hygiene 

Office, field personnel representing the U.S. Public Health Service, Federal 

Occupational Health conducted surface lead monitoring at the Missouri Army National 

Guard Armory located in Marshall, Missouri. This survey was conducted in order to 

identify lead levels on surfaces within the facility. 

The Marshall Armory is adjacent to Field Maintenance Shop 7 and is the home of the 

1128th Forward Support Company. A firing range was contained inside this building, but 

the space has been renovated into locker rooms. Weapons are reportedly cleaned on 

the drill floor. The assembly spaces in this facility are accessed by the public for 

community activities approximately four times per year. 

Eight surface wipe samples were collected on representative surfaces throughout the 

facility and analyzed for lead. For purposes of this report, any surface lead level that 

exceeds 40 micrograms per square foot (μg/ft2) in a potentially child occupied area is 

considered significant. Any surface lead level that exceeds 200 μg/ft2 in any other area 

of the armory is considered significant. 

None of the eight samples collected contained levels of lead above NGB Industrial 

Hygiene Surface Levels. When weapons are cleaned, special attention should be given 

to cleaning up the work area, by wet mopping surfaces or vacuuming with highefficiency particulate air (HEPA) filter vacuums, to prevent potential lead contamination 

from ammunition that may spread to other areas of the building. (RAC 2) 

BEST AVAILABLE COPY BEST AVAILABLE COPY FOIA Requested Record #J-15-0085 (MO) 

Released by National Guard Bureau 

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Surface Lead Monitoring Survey Marshall Armory 

Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 4 

II. Introduction

At the request of the National Guard Bureau (NGB) Region West Industrial Hygiene 

Office, field personnel representing the U.S. Public Health Service, Federal 

Occupational Health conducted surface lead monitoring at the Missouri Army National 

Guard Armory located in Marshall, Missouri. This work was conducted under the 

Interagency Agreement between the USPHS, FOH and the West Region of the Army 

National Guard. This survey was conducted in order to identify lead levels on surfaces 

within the facility. , both Certified Industrial Hygienists 

(CIHs), conducted this survey on June 13, 2012. 

FOH conducted this survey in the interest of preventing employee illness and in meeting 

legal obligations where applicable. Results and recommendations are based on 

information provided, field measurements, and conditions observed during the survey. 

III. Site Description

The Marshall Armory is adjacent to Field Maintenance Shop 7 and is the home of the 

1128th Forward Support Company. A firing range was contained inside this building, but 

the space has been renovated into locker rooms. Weapons are reportedly cleaned on 

the drill floor. The assembly spaces in this facility are accessed by the public for 

community activities approximately four times per year. 

IV. Scope of Work

The purpose of the site visit was to collect surface wipe samples in the building for 

evaluation of lead contamination. The survey included a walkthrough of the facility and 

interviews with employees. The survey also included collecting surface wipe samples to 

evaluate lead contamination levels. 

V. Findings, Discussion, and Recommendations

Surface Wipe Sampling 

Assessment Criteria 

At present, there are no Occupational Safety and Health Administration (OSHA) 

regulated levels for these toxic metals on surfaces. National Guard Bureau (NGB) 

Industrial Hygiene has adopted the sampling procedures and allowable limits for lead 

dust published in NG Pam 420-15, Guidelines and Procedures for Rehabilitation and 

Conversion of Indoor Firing Ranges, November 3, 2006. 

For purposes of this report, any surface lead level that exceeds 40 micrograms per 

square foot (μg/ft2) in a potentially child occupied area is considered significant. Any 

surface lead level that exceeds 200 μg/ft2 in any other area of the facility is considered 

BEST AVAILABLE COPY BEST AVAILABLE COPY FOIA Requested Record #J-15-0085 (MO) 

Released by National Guard Bureau 

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Non-Responsive
Surface Lead Monitoring Survey Marshall Armory 

Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 5 

significant. NGB Industrial Hygiene considers facilities with public access to be 

potentially child occupied facilities. NG Pam 420-15 may be found at: 

http://www.ngbpdc.ngb.army.mil/pubs/420/ngpam420 15.pdf. The assessment criteria 

are based on the Environmental Protection Agency (EPA) Toxic Substances Control Act 

(TSCA) 40 CFR 745 and the Housing and Urban Development (HUD) 24 CFR 35 

definitions for dust-lead hazards for interior window sills and floors. 

DoD has instituted a new policy (DTM 12-003, Control and Management of Surface 

Accumulations from Lead, Hexavalent Chromium, and Cadmium Operations, April 18, 

2012) to minimize surface contamination levels of toxic metals.

Wipe Sampling Method 

Surface samples were collected using Environmental Express GhostTM Wipes. Surface 

wipe templates that encompassed either 1 square foot (child occupied areas) or 0.11 

square foot (other work areas) of surface area were used to collect samples. For each 

surface sample collected, a new set of gloves and a new numbered template was used. 

The entire template area was wiped using and “S” configured motion. The wipe was 

then folded in half and the template area was wiped using an “S” motion in a direction 

perpendicular to the first. The wipe was folded again and the perimeter of the area was 

wiped. The wipe was placed into a plastic centrifuge tube, capped, and the samples 

were sent to the FOH Laboratory in Chicago, Illinois. Samples were hot plate digested 

and analyzed for lead with a Perkin Elmer 200 flame atomic absorption 

spectrophotometer using the OSHA ID-121 method. 

Results

Eight surface wipe samples were collected on representative surfaces throughout the 

facility and analyzed for lead. The results are contained in Table 1 and photos of the 

sample locations are included in Figure 1. None of the eight samples collected 

contained levels of lead above NGB Industrial Hygiene Surface Level for lead. Samples 

W-1 through W-4 were assessed at the 40 μg/ft2 level (child occupied) and Samples W5 through W-8 were evaluated at the 200 μg/ft2

 level (other work areas). 

Recommendation:

When weapons are cleaned in the facility, special attention should be given to cleaning 

up the work area, by wet mopping surfaces, or vacuuming with high-efficiency 

particulate air (HEPA) filter vacuums, to prevent potential lead contamination from 

ammunition that may spread to other areas of the building. (RAC 2) 

BEST AVAILABLE COPY BEST AVAILABLE COPY FOIA Requested Record #J-15-0085 (MO) 

Released by National Guard Bureau 

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Surface Lead Monitoring Survey Marshall Armory 

Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 6 

Table 1 

Surface Wipe Sampling Results for Lead 

Missouri Army National Guard 

Armory, Marshall, Missouri 

June 13, 2012 

Sample # Location Wipe 

Area (ft2)

Lead 

(μg/ft2)

NGB 

Surface 

Level 

(μg/ft2)

W-1 Drill floor, southwest corner 1.0 <10 40

W-2

Electrical room on ice machine, 

southwest end of building 1.0 21 40

W-3

Drill floor on top of beverage vending 

machine 1.0 13 40

W-4 Kitchen counter top 1.0 <10 40

W-5 Conference room on table 0.11 <91 200

W-6

Locker room (northeast) on top of 

Locker #56 at target end of former 

firing range

0.11 <91 200

W-7

Locker room (northwest) on top of 

Locker #23 0.11 <91 200

W-8

Locker room (northeast) on floor at 

target end of former firing range 0.11 <91 200

Blank ND N/A

Notes: 1) μg / ft2 = micrograms per square foot of surface area. 2) ND = none detected. 

3) “<” means less than the reporting limit for the analytical method.

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Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 7 

Figure 1 - Surface Wipe Sample Locations (below). 

Sample W-1 Sample W-2

Sample W-3 Sample W-4

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Surface Lead Monitoring Survey Marshall Armory 

Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 8 

Sample W-5 Sample W-6

Sample W-7 Sample W-8

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Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 9 

Technical Assistance: This report was written by as a representative of 

FOH. , Regional Industrial Hygienist at the NGB ARNG Region West 

Industrial Hygiene Office, reviewed and approved this report. For technical assistance 

regarding information found in this report or the performed survey please contact the 

Regional Industrial Hygienist at the NGB ARNG Region West Industrial Hygiene Office. 

BEST AVAILABLE COPY BEST AVAILABLE COPY FOIA Requested Record #J-15-0085 (MO) 

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Survey Date: June 13, 2012 Marshall, MO 

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Appendix A 

Point of Contact (POC) List 

Missouri Army National Guard State POC 

Armory POC 

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Appendix B 

Laboratory Result Report and Chain of Custody Sheet 

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Surface Lead Monitoring Survey Marshall Armory 

Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 15

Appendix C 

Occupational Health Risk Assessment Codes 

(Reference: DOD Letter of Instructions 6055.1) 

Occupational health risk assessment codes (RACs) are included in this report to quantify 

health risks to personnel. risk assessment is an expression of health hazard severity 

and mishap probability, described in terms of route of exposure, actual exposure, 

exposure limit standards, potential health effects, duration of exposure, and number of 

exposed personnel. The following procedure is used to determine the RACs: 

STEP 1: This step assesses points to determine the health hazard severity category 

(HHSC). The HHSC reflects the magnitude of exposure to a physical, chemical, or 

biological agent and the medical effects of exposure. 

A. Exposure Points Assessed. 

Alternate Route

of Exposure

Exposure Conditions

<CT Occasionally >CT

Always <STD

>CT

<STD >STD

AER

Possible

NO 0 3 5 7

YES 1-2 4 6 8

Notes: 1) AER = Alternate exposure route, such as skin absorption or ingestion. 2) CT = DoD 

component threshold that triggers surveillance actions, such as action level. 3) STD = DoD exposure limit, 

such as TLV or PEL. 4) > = Greater than. 5) < = Less than. 6) < = Less than or equal to. 

B. Medical Effects Points Assessed. 

Condition Points

No medical effects, such as nuisance noise and 

nuisance odor 0

Temporary reversible illness requiring supportive 

treatment, such as eye irritation and sore throat 1-2

Temporary reversible illness with a variable but limited 

period of disability, such as metal fume fever 3-4

Permanent, nonsevere illness or loss of capacity, such 

as permanent hearing loss 5-6

Permanent, severe, disabling, irreversible illness or 

death, such as asbestosis or lung cancer 7-8

C. The HHSC is determined by totaling the points assessed and using the following 

guide. 

Total Points* HHSC

13-16 I

9-12 II

5-8 III

0-4 IV

* Sum of A and B above. 

BEST AVAILABLE COPY BEST AVAILABLE COPY FOIA Requested Record #J-15-0085 (MO) 

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Surface Lead Monitoring Survey Marshall Armory 

Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 16

STEP 2: This step uses the following guidelines to assess points to determine the 

mishap probability category (MPC) for health hazards. The probability of mishap reflects 

the duration of exposure and the number of exposed personnel. 

A. Duration of Exposure Points Assessed. 

Type of Exposure

Length of Exposure

1-8 hr/wk >8 hr/wk/not 

continuous Continuous

Irregular/

Intermittent 1-2 4-6 NA

Regular/Periodic 2-3 5-7 8

B. Number of Exposed personnel Points Assessed. 

Number of Exposed Personnel Points

<5 1-2

5-9 3-4

10-49 5-6

>49 7-8

C. The MPC for health hazards is determined by totaling the points assessed and using 

the following guide: 

Total Points* MPC

14-16 A

10-13 B

5-9 C

<5 D

* Sum of A and B above. 

STEP 3: The RAC is determined using the following matrix: 

HHSC MPC

A B C D

I 1 1 2 3

II 1 2 3 4

III 2 3 4 5

IV 3 4 5 5

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Surface Lead Monitoring Survey Report 

at 

Missouri Army National Guard 

Armory 

475 South Davis 

Marshall, Missouri 

Survey Date: June 13, 2012

for

Department of the Army 

National Guard Bureau 

Region West Industrial Hygiene Office 

NGB-AVN-S1

Performed by 

U.S. Public Health Service 

Federal Occupational Health 

August 31, 2012

BEST AVAILABLE COPY BEST AVAILABLE COPY FOIA Requested Record #J-15-0085 (MO) 

Released by National Guard Bureau 

Page 17 of 43
Surface Lead Monitoring Survey Marshall Armory 

Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 2 

Table of Contents 

I. Executive Summary 

II. Introduction 

III. Site Description 

 

IV. Scope of Work 

V. Findings, Discussion, and Recommendations 

Appendices 

A. Point of Contact (POC) List 

B. Laboratory Result Reports and Chain of Custody Sheets 

C Occupational Health Risk Assessment Codes (RACs) 

 

BEST AVAILABLE COPY BEST AVAILABLE COPY FOIA Requested Record #J-15-0085 (MO) 

Released by National Guard Bureau 

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Surface Lead Monitoring Survey Marshall Armory 

Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 3 

I. Executive Summary 

At the request of the National Guard Bureau (NGB) Region West Industrial Hygiene 

Office, field personnel representing the U.S. Public Health Service, Federal 

Occupational Health conducted surface lead monitoring at the Missouri Army National 

Guard Armory located in Marshall, Missouri. This survey was conducted in order to 

identify lead levels on surfaces within the facility. 

The Marshall Armory is adjacent to Field Maintenance Shop 7 and is the home of the 

1128th Forward Support Company. A firing range was contained inside this building, but 

the space has been renovated into locker rooms. Weapons are reportedly cleaned on 

the drill floor. The assembly spaces in this facility are accessed by the public for 

community activities approximately four times per year. 

Eight surface wipe samples were collected on representative surfaces throughout the 

facility and analyzed for lead. For purposes of this report, any surface lead level that 

exceeds 40 micrograms per square foot (μg/ft2) in a potentially child occupied area is 

considered significant. Any surface lead level that exceeds 200 μg/ft2 in any other area 

of the armory is considered significant. 

None of the eight samples collected contained levels of lead above NGB Industrial 

Hygiene Surface Levels. When weapons are cleaned, special attention should be given 

to cleaning up the work area, by wet mopping surfaces or vacuuming with highefficiency particulate air (HEPA) filter vacuums, to prevent potential lead contamination 

from ammunition that may spread to other areas of the building. (RAC 2) 

BEST AVAILABLE COPY BEST AVAILABLE COPY FOIA Requested Record #J-15-0085 (MO) 

Released by National Guard Bureau 

Page 19 of 43
Surface Lead Monitoring Survey Marshall Armory 

Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 4 

II. Introduction

At the request of the National Guard Bureau (NGB) Region West Industrial Hygiene 

Office, field personnel representing the U.S. Public Health Service, Federal 

Occupational Health conducted surface lead monitoring at the Missouri Army National 

Guard Armory located in Marshall, Missouri. This work was conducted under the 

Interagency Agreement between the USPHS, FOH and the West Region of the Army 

National Guard. This survey was conducted in order to identify lead levels on surfaces 

within the facility. , both Certified Industrial Hygienists 

(CIHs), conducted this survey on June 13, 2012. 

FOH conducted this survey in the interest of preventing employee illness and in meeting 

legal obligations where applicable. Results and recommendations are based on 

information provided, field measurements, and conditions observed during the survey. 

III. Site Description

The Marshall Armory is adjacent to Field Maintenance Shop 7 and is the home of the 

1128th Forward Support Company. A firing range was contained inside this building, but 

the space has been renovated into locker rooms. Weapons are reportedly cleaned on 

the drill floor. The assembly spaces in this facility are accessed by the public for 

community activities approximately four times per year. 

IV. Scope of Work

The purpose of the site visit was to collect surface wipe samples in the building for 

evaluation of lead contamination. The survey included a walkthrough of the facility and 

interviews with employees. The survey also included collecting surface wipe samples to 

evaluate lead contamination levels. 

V. Findings, Discussion, and Recommendations

Surface Wipe Sampling 

Assessment Criteria 

At present, there are no Occupational Safety and Health Administration (OSHA) 

regulated levels for these toxic metals on surfaces. National Guard Bureau (NGB) 

Industrial Hygiene has adopted the sampling procedures and allowable limits for lead 

dust published in NG Pam 420-15, Guidelines and Procedures for Rehabilitation and 

Conversion of Indoor Firing Ranges, November 3, 2006. 

For purposes of this report, any surface lead level that exceeds 40 micrograms per 

square foot (μg/ft2) in a potentially child occupied area is considered significant. Any 

surface lead level that exceeds 200 μg/ft2 in any other area of the facility is considered 

BEST AVAILABLE COPY BEST AVAILABLE COPY FOIA Requested Record #J-15-0085 (MO) 

Released by National Guard Bureau 

Page 20 of 43

Non-Responsive
Surface Lead Monitoring Survey Marshall Armory 

Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 5 

significant. NGB Industrial Hygiene considers facilities with public access to be 

potentially child occupied facilities. NG Pam 420-15 may be found at: 

http://www.ngbpdc.ngb.army.mil/pubs/420/ngpam420 15.pdf. The assessment criteria 

are based on the Environmental Protection Agency (EPA) Toxic Substances Control Act 

(TSCA) 40 CFR 745 and the Housing and Urban Development (HUD) 24 CFR 35 

definitions for dust-lead hazards for interior window sills and floors. 

DoD has instituted a new policy (DTM 12-003, Control and Management of Surface 

Accumulations from Lead, Hexavalent Chromium, and Cadmium Operations, April 18, 

2012) to minimize surface contamination levels of toxic metals.

Wipe Sampling Method 

Surface samples were collected using Environmental Express GhostTM Wipes. Surface 

wipe templates that encompassed either 1 square foot (child occupied areas) or 0.11 

square foot (other work areas) of surface area were used to collect samples. For each 

surface sample collected, a new set of gloves and a new numbered template was used. 

The entire template area was wiped using and “S” configured motion. The wipe was 

then folded in half and the template area was wiped using an “S” motion in a direction 

perpendicular to the first. The wipe was folded again and the perimeter of the area was 

wiped. The wipe was placed into a plastic centrifuge tube, capped, and the samples 

were sent to the FOH Laboratory in Chicago, Illinois. Samples were hot plate digested 

and analyzed for lead with a Perkin Elmer 200 flame atomic absorption 

spectrophotometer using the OSHA ID-121 method. 

Results

Eight surface wipe samples were collected on representative surfaces throughout the 

facility and analyzed for lead. The results are contained in Table 1 and photos of the 

sample locations are included in Figure 1. None of the eight samples collected 

contained levels of lead above NGB Industrial Hygiene Surface Level for lead. Samples 

W-1 through W-4 were assessed at the 40 μg/ft2 level (child occupied) and Samples W5 through W-8 were evaluated at the 200 μg/ft2

 level (other work areas). 

Recommendation:

When weapons are cleaned in the facility, special attention should be given to cleaning 

up the work area, by wet mopping surfaces, or vacuuming with high-efficiency 

particulate air (HEPA) filter vacuums, to prevent potential lead contamination from 

ammunition that may spread to other areas of the building. (RAC 2) 

BEST AVAILABLE COPY BEST AVAILABLE COPY FOIA Requested Record #J-15-0085 (MO) 

Released by National Guard Bureau 

Page 21 of 43
Surface Lead Monitoring Survey Marshall Armory 

Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 6 

Table 1 

Surface Wipe Sampling Results for Lead 

Missouri Army National Guard 

Armory, Marshall, Missouri 

June 13, 2012 

Sample # Location Wipe 

Area (ft2)

Lead 

(μg/ft2)

NGB 

Surface 

Level 

(μg/ft2)

W-1 Drill floor, southwest corner 1.0 <10 40

W-2

Electrical room on ice machine, 

southwest end of building 1.0 21 40

W-3

Drill floor on top of beverage vending 

machine 1.0 13 40

W-4 Kitchen counter top 1.0 <10 40

W-5 Conference room on table 0.11 <91 200

W-6

Locker room (northeast) on top of 

Locker #56 at target end of former 

firing range

0.11 <91 200

W-7

Locker room (northwest) on top of 

Locker #23 0.11 <91 200

W-8

Locker room (northeast) on floor at 

target end of former firing range 0.11 <91 200

Blank ND N/A

Notes: 1) μg / ft2 = micrograms per square foot of surface area. 2) ND = none detected. 

3) “<” means less than the reporting limit for the analytical method.

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Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 7 

Figure 1 - Surface Wipe Sample Locations (below). 

Sample W-1 Sample W-2

Sample W-3 Sample W-4

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ARNG_MO_Armory_Marshall_Aug12.docx 8 

Sample W-5 Sample W-6

Sample W-7 Sample W-8

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ARNG_MO_Armory_Marshall_Aug12.docx 9 

Technical Assistance: This report was written by as a representative of 

FOH. , Regional Industrial Hygienist at the NGB ARNG Region West 

Industrial Hygiene Office, reviewed and approved this report. For technical assistance 

regarding information found in this report or the performed survey please contact the 

Regional Industrial Hygienist at the NGB ARNG Region West Industrial Hygiene Office. 

BEST AVAILABLE COPY BEST AVAILABLE COPY FOIA Requested Record #J-15-0085 (MO) 

Released by National Guard Bureau 

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Surface Lead Monitoring Survey Marshall Armory 

Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 10

Appendix A 

Point of Contact (POC) List 

Missouri Army National Guard State POC 

Armory POC 

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Appendix B 

Laboratory Result Report and Chain of Custody Sheet 

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Surface Lead Monitoring Survey Marshall Armory 

Survey Date: June 13, 2012 Marshall, MO 

ARNG_MO_Armory_Marshall_Aug12.docx 15

Appendix C 

Occupational Health Risk Assessment Codes 

(Reference: DOD Letter of Instructions 6055.1) 

Occupational health risk assessment codes (RACs) are included in this report to quantify 

health risks to personnel. risk assessment is an expression of health hazard severity 

and mishap probability, described in terms of route of exposure, actual exposure, 

exposure limit standards, potential health effects, duration of exposure, and number of 

exposed personnel. The following procedure is used to determine the RACs: 

STEP 1: This step assesses points to determine the health hazard severity category 

(HHSC). The HHSC reflects the magnitude of exposure to a physical, chemical, or 

biological agent and the medical effects of exposure. 

A. Exposure Points Assessed. 

Alternate Route

of Exposure

Exposure Conditions

<CT Occasionally >CT

Always <STD

>CT

<STD >STD

AER

Possible

NO 0 3 5 7

YES 1-2 4 6 8

Notes: 1) AER = Alternate exposure route, such as skin absorption or ingestion. 2) CT = DoD 

component threshold that triggers surveillance actions, such as action level. 3) STD = DoD exposure limit, 

such as TLV or PEL. 4) > = Greater than. 5) < = Less than. 6) < = Less than or equal to. 

B. Medical Effects Points Assessed. 

Condition Points

No medical effects, such as nuisance noise and 

nuisance odor 0

Temporary reversible illness requiring supportive 

treatment, such as eye irritation and sore throat 1-2

Temporary reversible illness with a variable but limited 

period of disability, such as metal fume fever 3-4

Permanent, nonsevere illness or loss of capacity, such 

as permanent hearing loss 5-6

Permanent, severe, disabling, irreversible illness or 

death, such as asbestosis or lung cancer 7-8

C. The HHSC is determined by totaling the points assessed and using the following 

guide. 

Total Points* HHSC

13-16 I

9-12 II

5-8 III

0-4 IV

* Sum of A and B above. 

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STEP 2: This step uses the following guidelines to assess points to determine the 

mishap probability category (MPC) for health hazards. The probability of mishap reflects 

the duration of exposure and the number of exposed personnel. 

A. Duration of Exposure Points Assessed. 

Type of Exposure

Length of Exposure

1-8 hr/wk >8 hr/wk/not 

continuous Continuous

Irregular/

Intermittent 1-2 4-6 NA

Regular/Periodic 2-3 5-7 8

B. Number of Exposed personnel Points Assessed. 

Number of Exposed Personnel Points

<5 1-2

5-9 3-4

10-49 5-6

>49 7-8

C. The MPC for health hazards is determined by totaling the points assessed and using 

the following guide: 

Total Points* MPC

14-16 A

10-13 B

5-9 C

<5 D

* Sum of A and B above. 

STEP 3: The RAC is determined using the following matrix: 

HHSC MPC

A B C D

I 1 1 2 3

II 1 2 3 4

III 2 3 4 5

IV 3 4 5 5

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St. Clair Armory - Surface Lead Sampling Report 

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State: 

MO

Facility: 

St Clair Armory and IFR

Address: 

375 Commercial Ave., St. Clair, MO 63077

Date: 

2/26/2015

IH: POCs: 

Facility Description: This armory was constructed in 1963. The old firing range was 

converted to supply cages and a storage area in the late 1990’s. The old firing range is neat 

and orderly. The backstop, soundproofing, and baffles were not present and the range 

exhaust fan behind the backstop was removed. A new furnace was installed approximately 

10 year ago in the old backstop area and the old exhaust fan penetration in the block wall is 

used for the furnace duct work. There is a transfer air louver at floor level along the wall 

shared with the drill floor that was blanked off. Range light fixtures were recently removed per 

CPT Wolf. The partial drywall ceiling extends over the COMMO to the mess cage under the 

angle iron on the roof deck (Figure 1). There is what appears to be ventilation equipment 

(possibly the range supply/make-up air a heating unit) above COMMO cage on the old firing 

line side (Figure 1).

Community 

Use/Children N

Description: Not frequent; DARE Program on drill floor 

once per year. Family Christmas party is held elsewhere.

Weapons 

Cleaning Y Locations: Drill floor near supply area.

Partial Ceiling above Cages. Ventilation Equipment above COMMO Cage.

Figure 1. Old Firing Range Components.

Summary: The focus of this sampling effort was to conduct a baseline lead dust survey of 

the armory including the old firing range. Table 1 contains the sampling results, Figure 2 is a 

floor plan showing the sampling locations, and the analytical report is provided in Figure 3. 

Surface wipe sampling locations were biased toward visible settled dust (worst case) to 

identify contamination levels. 

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St. Clair Armory - Surface Lead Sampling Report 

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Results: The NG Pam 420-15 guideline for lead surface contamination is 200 μg/ft2. 

Moderate contamination (above 200 but less than 1000 μg/ft2) was found in the old range 

area on the floors, on a metal shelf in the 1st platoon cage, and on a storage cabinet in the 

mess cage. Gross contamination (>100,000 μg/ft2) was found on the back side of the partial 

gypsum board ceiling above the mess cage and this contaminated space is open to the cage 

area below. There was also some moderate contamination found on top of the flammable 

cabinet on the drill floor.

Recommendations:

1. In the old range, HEPA vacuum/wet wipe visible dust from the floor, shelving, and storage 

cabinets IAW OHARNG Occupational Health Office Guide to Cleaning Up Lead Dust on 

Equipment/Area and store items in a clean area. This procedure was originally developed 

for Ohio and is provided as guidance for use in Missouri (see attached).

2. Due to the high contamination levels on range structural components, secure a qualified 

range remediation contractor experienced and licensed in lead dust abatement to clean 

the area above the gypsum ceiling including removing/decontaminating any original range 

components IAW NG Pam 420-15.

3. Thoroughly clean all food service equipment stored in the old range; dispose of any 

unwrapped serving items.

4. Increase housekeeping on the drill floor to include all horizontal surfaces such as the top 

of the flammable cabinet.

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St. Clair Armory - Surface Lead Sampling Report 

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Table 1. St. Clair IFR Surface Wipe Sampling Results for Lead. 

Sample # Location Photo Lead 

(μg/ft2)

MOSCW1

COMMO 

cage on 

top of 

black 

storage 

cage

<91

MOSCW2

COMMO 

cage on 

floor

321

MOSCW3

Medic 

cage on 

metal 

storage 

shelf

<91

MOSCW4

CBRN 

cage on 

metal shelf

<91

MOSCW5

CBRN 

cage on 

floor

598

MOSCW6

2

nd Platoon 

cage on 

locker

144

MOSCW7

2

nd Platoon 

cage on 

floor

250

Sample # Location Photo Lead 

(μg/ft2)

MOSCW8

1

st Platoon 

cage on 

metal shelf

241

MOSCW9

Mess cage 

inside grey 

storage 

cabinet

<91

MOSCW10

Mess cage 

on top of 

storage 

cabinet

823

MOSCW11

Mess cage 

on back 

side of 

gypsum 

board 

ceiling

193,182

MOSCW12

Old 

backstop 

area on 

shelf

<91

MOSCW13

Old 

backstop 

area on 

blue mats

<91

MOSCW14

Old range 

on floor 

near wall 

grille

650

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St. Clair Armory - Surface Lead Sampling Report 

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Table 2. St. Clair Balance of Armory Surface Wipe Sampling Results for Lead.

Sample # Location Photo Lead 

(μg/ft2)

MOSC-W15 Conference room on shelf <91

MOSC-W16 Supply room entry way on floor <91

MOSC-W17 Drill floor on flammable cabinet 501

MOSC-W18 Kitchen next to microwave <91

MOSC-W19 Drill floor on ice machine <91

MOSC-W20 Weight room on window sill <91

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Figure 2. St. Clair Armory Floor Plan with Sampling Locations. 

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St. Clair Armory - Surface Lead Sampling Report 

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