United S
Environrnf ntal Piotection
Office of Pest.
and Toxic Substances
Washinqton, DC 20460
EPA 560 5-85 H30a
   • !985
  Substances
Asbestos in Buildings:
Simplified Sampling
Scheme for Friable
Surfacing Materials

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                                      October, 1985
    U.S. ERA
    OPPTS Chemical Library
    EPA West Room 3378 MC740TT
    1200 Pennsylvania Ave. NW
    Washington OC 20460-0001
          Asbestos in Buildings
Simplified Sampling Scheme for Friable
           Surfacing Materials
         Exposure Evaluation Division
          Office of Toxic Substances
    Office of Pesticides and Toxic Substances
      U.S. Environmental Protection Agency
            Washington, DC 20460

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              TABLE OF CONTENTS

                                            Page

ACKNOWLEDGEMENTS	   v

SECTION 1 — INTRODUCTION	   1

SECTION 2 — OUTLINE OF SAMPLING AND
           ANALYSIS PROCEDURE	   1

SECTION 3 — IDENTIFYING SAMPLING AREAS 	   2

SECTION 4 — PREPARATION OF DIAGRAMS	   3

SECTION 5 — NUMBER OF SAMPLES 	   5

SECTION 6 — SELECTION OF SAMPLE LOCATIONS	   5

SECTION 7 — IDENTIFICATION OF SAMPLING LOCATIONS .   7

SECTION 8 — SAMPLE COLLECTION	   10

SECTION 9 — EXAMPLE APPLICATION	   10

SECTION 10 — QUALITY ASSURANCE	   11

SECTION 11 — LABORATORY ANALYSIS	   11
                             .•V-

SECTION 12 — INTERPRETATION OF RESULTS	   13

SECTION 13 — WHAT TO DO IF ASBESTOS IS PRESENT...   14

REFERENCES	   15

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                 TABLE OF CONTENTS
                       (Continued)

                                                     Page

                   LIST OF APPENDICES

Appendix 1. EPA Regional Asbestos Coordinators	   16


                     LIST OF TABLES

Table 1. Number of Samples to be Collected
       from each Sampling Area	        	    5

Table 2. Sampling Locations   	      	    8


                     LIST OF FIGURES

Figure 1. Example of a Sampling Area Diagram	    4

Figure 2. Sampling Area Divided into Nine Subareas	    6

Figure 3. Example of an Irregularly Shaped Sampling
        Area Divided into Nine Equally Sized Subareas  ....    9

Figure 4. Location of Samples	   12

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                   Acknowledgements
    This document was written by Jean Chesson and Ted Berner of
Battelle Columbus Division and Bertram Price of National Economic
Research Associates, Inc., based on discussions with a working group
from EPA's Office of Toxic Substances. The group consisted of Carol
Bass, Joan Blake, Joseph Breen, Joseph Carra, Elizabeth Dutrow and
Cindy Stroup of the Exposure Evaluation Division and David Mayer and
Stephen Schanamann of the Asbestos Action Program. We thank the
individuals who reviewed an earlier draft and provided comments, many
of which are incorporated in the final version. Karen J. Krasner and
Lenora Palmer of Battelle managed the production of text and graphics.

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 1.   INTRODUCTION

  The Environmental Protection Agency (EPA) has an active technical
 assistance program which provides information on identifying and con-
 trolling  asbestos-containing  materials in buildings.  This  booklet
 describes a procedure for  sampling friable sprayed- or troweled-on
 materials on ceilings, walls, and other surfaces. (Friable material is
 material that can be crumbled, pulverized, or reduced to powder by hand
 pressure.) Pipe and boiler insulation, and other types of material require
 different sampling  procedures  which  are discussed in EPA's 1985
 guidance (the "Purple Book", USEPA 1985a). The sampling procedure
 described here is a simplified  version of the scheme described in
 "Asbestos-Containing Materials in School Buildings:  Guidance  for
 Asbestos Analytical Programs" (USEPA  1980). Like USEPA 1980, it uses
 random sampling to ensure that the samples are representative of  the
 sampling area. However, the procedure  has been simplified to eliminate
 tedious  calculations. Sampling done according to the 1980 scheme is
 consistent with the recommendations in this booklet.
  EPA has  published "Guidance for Controlling Asbestos-Containing
 Materials in Buildings" (the "Purple Book", USEPA 1985a) to assist
 building owners. The guidance explains how to plan and conduct a
 building survey to determine if asbestos-containing material (ACM) is
 present. This booklet should be used in conjunction with Chapter 2 of
 the Purple  Book.
  The sampling scheme described here is designed to minimize errors
 in detecting asbestos. It takes into account two important sources of
 potential error:

     •   error caused when asbestos is not distributed uniformly
         throughout the material (one or more samples could miss
         asbestos even if it is present); and

     •   error caused when the laboratory analysis is incorrect.

 Actual information on the likelihood of these errors was used to deter-
 mine the number of samples to be collected and their location. The
 statistical basis for the design is given in USEPA (1985b).
2.  OUTLINE OF SAMPLING AND
    ANALYSIS PROCEDURE

  Follow these steps (each step is described in more detail below):

     •   Identify all friable surfacing materials and group them in-
        to homogeneous Sampling Areas. A homogeneous Sam-
        pling Area contains material that is uniform in texture and ap-

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         pearance, was installed at one time, and is unlikely to consist
         of more than one type, or formulation, of material.

         Prepare diagrams of each Sampling Area to allow selection
         and documentation of sampling locations.

         Divide the Sampling Area into nine equally sized subareas.
         This is done to help in obtaining samples that are represen-
         tative of the entire Sampling Area.

         Determine the number of samples. Nine samples (one per
         subarea) are recommended. When cost, or other constraints,
         limit the number of samples that can be collected, a minimum
         number of samples based on the size of the Sampling Area
         is specified.

         Determine the sampling locations. The locations are chosen
         to obtain a representative sample and to avoid  biases that
         could be introduced if personal judgment alone  were used.

         Collect samples. Follow guidelines designed to minimize fiber
         release.

         Follow a Quality Assurance program. This involves collec-
         ting  extra  samples  to ensure  reliability of the  laboratory
         analyses.

         Send the samples to a qualified laboratory for  analysis by
         polarized light microscopy.

         Interpret the results. If any sample has more than 1%
         asbestos, then either assume that the entire Sampling Area
         contains asbestos or collect additional samples to determine
         more precisely the extent of the ACM.

         If asbestos is present, initiate a special operations and
         maintenance (O&M) program to clean up any asbestos fibers
         previously released and to prevent future release. Refer to the
         Purple  Book for more information.
3.   IDENTIFYING SAMPLING AREAS

  All friable surfacing materials in the building must be identified. Check
all spaces in the building, including halls, closets, attic spaces, and tun-
nels. Carefully inspect walls, ceilings, beams, ducts, and any other sur-
faces. Determine if the material is friable. Several types of friable sur-
facing material may have been applied within a single building. These
could have very different asbestos content; therefore, each  type of

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material must be sampled. Building records may provide useful infor-
mation such as construction dates for different parts of the building.
  Group friable surfacing material into "homogeneous" Sampling Areas.
A homogeneous area contains friable material that  is uniform in tex-
ture and color and appears identical in every other respect. Materials
installed at different times belong to different Sampling Areas. If there
is any reason to suspect that materials might be different, even though
they appear uniform, assign them to separate Sampling Areas. For ex-
ample, material in different wings of a building, on different floors, or
in special areas such as cafeterias, machine shops,  bandrooms, etc.,
should be assigned to separate Sampling Areas, unless there is good
reason to believe that the material is identical throughout.
  In a large multistory building (more than 10 stories), a separate Sam-
pling Area for each floor may not be necessary. If the material appears
identical on every floor, several floors can be grouped into one Sam-
pling Area. Do not group floors if it is known that the material was ap-
plied at different times, or if there is some other reason to suspect that
the material might not be homogeneous. The selection of homogeneous
Sampling Areas is a subjective process. When in doubt, assign materials
to separate Sampling Areas.
4.   PREPARATION OF DIAGRAMS

  For each Sampling Area, prepare a diagram approximately to scale
showing ail friable materials in the Sampling Area. An example is shown
in Figure 1. The Sampling Area diagram should include:

     •   an identification  number;
     •   brief description  of the Sampling Area;
     •   area dimensions and scale;
     •   name and address of the building;
     •   name  and telephone  number  of  the asbestos program
        manager (See Chapter 2 of the  Purple Book);
     •   name of inspector and date of inspection; and
     •   name of person  preparing the diagram and date prepared.

If the Sampling Area contains areas of friable material that are not ad-
jacent (for example, homogeneous areas on consecutive floors of a
building), sketch each separate area and place all sketches on the same
graph as close together as possible. The Sampling Area may contain
areas that are not in one plane; for example, a ceiling and a wall with
the same type of friable material. In this case, sketch each flat surface
and place the sketches on the same graph, as close together as possi-
ble. The Sampling  Area diagrams should be  retained  as part of the
building owner's permanent asbestos program file.

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                                                  Sampling Area ft  2.
   Description;
   Activity
   F«c\o\Ae &e'A\«\* Wa-tex-\a\ o£  Activity  Center Am\ex:
t
                                132'
                                                              t
90'
GYMNASIUM
               60'
AUDITORIUM
                            12'
                                              60'
                                                                 60'
School dWtAerjyon "^aWiav- UlaVx  Asbestos Program Manager TkA "
Address ?Q/a  LaVi»\f't>/^ "^<-    Telephone No.
Inspector
                                                   •
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5.  NUMBER OF SAMPLES

  Nine samples per homogeneous Sampling Area are recommended.
With 9 samples, the likelihood of detecting asbestos when it is present
is very high. Cost or other constraints may limit the number of samples
that can be collected. If 9 samples cannot be collected, use Table 1 to
determine the minimum number. This number depends on the size of
the Sampling Area. In a very small (much less than 1,000 square feet)
Sampling Area such as a closet, take 3 samples rather than the full 9.
Table 1.  The Number of Samples to be Collected from each
        Sampling Area


                           Recommended       Minimum
Size of the                   Number of Samples   Number of Samples
Sampling Area                to be Collected       to be Collected

Less than 1,000 square feet              9                   3
Between 1,000 & 5,000                  9                   5
  square feet
Greater than 5,000 square feet             9                   7
6.  SELECTION OF SAMPLE LOCATIONS

  In this sampling scheme, sample locations are selected so that they
are representative of the Sampling Area. When nine samples are col-
lected, they are distributed evenly throughout the Sampling Area. If fewer
than nine samples are collected, a random  sampling scheme is used
to determine their location. Choosing sample locations according to per-
sonal judgment produces samples which may not be representative and
can lead to a wrong decision about the presence or absence of asbestos.
The sampling scheme described here avoids this problem and controls
the frequency of mistakes.
  Divide the Sampling Area into 9 equally sized subareas. This is done
by dividing the length and breadth of the Sampling Area into 3 equal
lengths and drawing a grid over the diagram (see Figure 2). This can
be done carefully by eye. Exact measurements are not needed.
  If the Sampling Area does not easily fit into a rectangular shape, parts
of the grid might not be in the Sampling Area. This is not a problem
in most cases. If, however, a large part of the grid falls outside the Sam-
pling Area (for example, if the Sample Area is L-shaped), it is advisable
to divide the Sampling Area into two or more separate Sampling Areas,

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                                                 Sampling Area  ID  I
Description :
Activi-fcy Ce^-fcer /Woex
        cev\»x>o rr\atex-*cx\
                                              m
                       »;av. U^V. Asbestos Program Manager TeJ
      Address 7Q/a / a^v/.o/.t T>y.  Telephone No.  £
      Inspector 9>-f.^,vfe ?«Wsovi  Diagram prepared by
      Date of Inspection <\/2tl/KR Date
          Figure 2.  Sampling Area divided into nine subareas.
6

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each of which is approximately rectangular, and select sample locations
by applying the sampling scheme to each Sampling Area.
  For greatest coverage, one sample from each of the nine regions
should be collected. If fewer samples are to be collected, the diagrams
in Table 2 show which subareas to use in order to follow a random sam-
pling scheme. For the first area you intend to sample, number the 9
subareas as shown for Sampling Area #1  in Table 2. If 3 samples are
needed, take them from the subareas markeo 1, 2 and 3. If 5 samples
are needed, take them from the subareas marked 1, 2, 3, 4 and 5, and
so on. Take samples from approximately the center of a subarea or as
close as possible to the center if accessibility, presence of light fixtures,
etc., make the center location impractical. If a subarea is specified that
falls entirely outside the Sampling Area, use the next specified subarea
instead. For example, if subarea 3 falls outside the Sampling Area, take
the third sample from subarea 4.
  For very irregularly shaped areas, the Sampling Area may be divid-
ed into 9 approximately equally sized subareas that do not  necessarily
form a rectangular grid. The diagrams in Table 2 will then need to be
adapted to the specific situation. Figure 3 shows an example of a Y--
shaped Sampling Area that was divided into 9 equally sized subareas.
The first diagram of Table 1 was adapted accordingly to number the
subareas. When adapting sampling diagrams, retain the order of the
numbered  subareas from  left to right and top  to bottom wherever
possible.
  For each Sampling Area use a new diagram in Table 2.  If you have
more than  18  Sampling  Areas  start again  at the  top  of
Table 2 (Sampling Area #1) to determine sampling locations for Sam-
pling Area 19.
7.  IDENTIFICATION OF SAMPLING  LOCATIONS

  Assign a non-systematic but unique sample ID number to each sam-
ple location. This ID number will be on the sampling container when
it goes to the  laboratory for analysis. Record the ID number and the
sample location on the Sampling Area diagram and also in a perma-
nent logbook.  This must be done carefully so that there is no uncer-
tainty about the location and identity of each sample. Make sure that
no two samples have the same ID number.  Unique non-systematic
numbers are  used  to prevent the laboratories from knowing  which
samples come from the same Sampling Areas or the same buildings.
This "blind" procedure helps prevent bias on the part  of the analyst
since there is no temptation to assume that the  next sample will be
similar to the  previous one.

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 Table 2.  Sampling locations. For each Sampling Area, take the First
          Sample from the Center of the Subarea Marked 1, take the
          Second Sample from the Center of the Subarea Marked 2, etc.
 Sampling   Sampling    Sampling
   Area     Locations    Area
Sampling    Sampling    Sampling
Locations     Area      Locations
9
2
5
8
7
3
1
6
4
8
3
4
7
9
2
1
5
6
4
2
8
1
9
5
7
6
3
6
5
2
1
9
7
8
3
4
6
1
9
4
5
2
3
8
7
7
6
2
4
1
9
3
5
8
                          10
                          11
                         12
7
2
6
1
4
8
9
5
3
                                                 13
                                                 14
                                                 15
              16
              17
              18
8

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Figure 3.  An example of an irregularly shaped Sampling Area divided
          into nine equally sized subareas. The first sampling
          diagram from Table 1 was modified to number the subareas.

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 8.   SAMPLE COLLECTION

  Collect samples while the area is unoccupied. The following guidelines
 for sample collection are designed to minimize damage to the ACM and
 subsequent fiber release.

      •   Wear at least a half-face respirator with  disposable filters.

      •   Wet the surface of the material to be sampled with water mist
         from a spray bottle or place a plastic bag around the sampler
         with the open end of the bag pressed tightly against the wall
         or ceiling.

      •   Sample with a reusable sampler such as a cork borer or a
         single-use sampler such as a glass vial, or metal or plastic
         container.

      •   With a twisting motion,  slowly push the sampler  into the
         material. Be sure to penetrate any paint or protective coating
         and all the  layers of the friable material.

      •   For reusable samplers, extract and eject the sample into a con-
         tainer. Wet-wipe the tube and plunger. For single-use samplers,
         extract, wet-wipe the exterior, and cap it.

      •   Label the container with the unique sample ID  number that
         is marked on the Sampling Area diagram.

      •   Clean debris using wet towels and discard them in a plastic
         bag.

      •   Use latex spray paint, or a sealant, to cover the spot where
         the sample was taken.
9.   EXAMPLE

  The  sampling  procedure is  illustrated  by this example.
A school was visually inspected for friable materials. The Activity Center
Annex was found to contain friable ceiling materials. All the materials
were believed to be the same and thus comprise one Sampling Area.
  Approximate  room  dimensions  were  obtained  by  pacing and
diagrammed as shown in Figure 1.
  There were not enough funds for nine samples to be collected in every
Sampling Area. Therefore, the minimum number, based on area, was
calculated. The total area of friable materials is 10,080 square feet, as
calculated by

10

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      Area  = [60' x 90'] + [12' x 90'] + [60' x 60']

            = 10,080 square feet.
Since this area is greater than 5,000 square feet, seven samples should
be collected (Table 1).
  The Sampling Area diagram was divided into 9 subareas. Assuming
this is the second Sampling Area to be sampled, the second diagram
of Table 2 is used. The region marked 6 in the diagram does  not fall
within the Sampling Area. Therefore the regions marked 1 through 5,
and 7 and 8 were used to obtain 7 samples. These 7 locations were
marked on  the Sampling Area diagram as shown in Figure 4. Each
sampling location was assigned a unique, non-systematic sample ID
number and this number was marked on the Sampling Area diagram.
A quality control sample (see below) was also collected in region 4 im-
mediately adjacent to the original sample. This sample was also given
a unique, non-systematic sample ID number.
10.   QUALITY ASSURANCE

  A quality assurance program is important to ensure the reliability of
results from laboratory  analyses.  Essentially identical  samples —
samples which should have the same content — are submitted for
laboratory analysis and the results are compared. These quality con-
trol (QC) samples may be obtained by taking two samples immediately
adjacent to each other ("side-by-side" samples). The QC samples are
labelled and handled in the same  way as ordinary samples. The
laboratory should not know which samples are QC samples. Collect at
least 1 QC sample per building or  1  QC sample per 20 samples,
whichever is larger. The QC sample should be analyzed by the primary
laboratory or at a second laboratory to  confirm the results of the first
analysis. Any disagreements about the presence or absence of asbestos
should be investigated by reanalyzing the samples or collecting addi-
tional samples.
11.  LABORATORY ANALYSIS

  The recommended method of bulk sample analysis for asbestos is
polarized light microscopy. The average cost of analysis is $25 per sam-
ple. EPA administers a bulk asbestos sample quality assurance program.
Lists of participating laboratories, their performance scores and further
                                                           11

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                                             Sampling Area ID I   2-
Description:

kc-fcivity  Cetvter
Fr\\e Ce\\\r\o
         -texture i
                            Ctox>«=,tx-uc-teA
        Ce'tV\y\a areas ">Vffcc\\eA ^>e\ocJ Cotnpr'^e
             O
                                               Area CZV
'
90
,
>
»
•^ 	 joz 	 ^>
'
'
,
I
i
]
i
GYMNASIUM
BL57
8
MX73
3
• PR17
• AT25
4
|


RS22
7
9
EG69
2
AUDIT(

IRIUM
FD37
4
TM43
5


6

^ 60' ^ ^12^
school /-,, Vv^rrsan^tmut* H;^» Asbestos
\ddress ^fi6> ILpltp^*^ Tir: Te
inspector '^j'tfiY/3- *S«V«^»>Qvt ^i
lephon
agram
t
60'
v
^ 60' ^
Program Manager "T*.A "P»a-r\c*>y-
e No.
f ^X J A ^ A\ A £1 .v ^^ ft *i.X
*• *^ • * -n ^T iJll if IB i 11 fl
prepared by Cj^aio Mnv-ti'n
)ate of Inspection 3/24/11* Date Ot-fcoV>^r 1, J9fiS
 Figure 4.  Location of samples. The Sampling Area was divided into
           nine subareas which were labelled according to the second
           diagram in Table 2. Samples were taken at locations marked
           with a • and given unique ID numbers as shown.
12

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information on the program are available from the Asbestos Technical
Information Services at (800)334-8571. After analysis, samples should
be kept permanently in a safe location, such as the Local Education
Agency (LEA) with appropriate documentation so that the samples can
be retrieved easily if needed.
  It is not always necessary to collect or have all samples analyzed at
once since sometimes a decision can be reached after the analysis of
only some of the samples. This is discussed  in more detail in the next
section.
12.   INTERPRETATION OF RESULTS

  If one or more samples from a Sampling Area has more than 1%
asbestos, then treat the Sampling Area as if it contains asbestos. If any
doubt remains, or if further information is needed, then collect additional
samples. For example, the initial sampling might suggest that the Sam-
pling Area is asbestos-free with the exception  of one end of a hallway
which opens into a foyer. In  this case, rather  than treating the whole
hallway as if it contained asbestos, the area could be subdivided into
two new Sampling Areas and each  one sampled according to the
scheme above to confirm the absence of asbestos in the hallway and
its presence in the foyer.
  Since a decision regarding the presence of asbestos can be made
as soon as one sample shows more than 1% asbestos, the samples
can be collected and analyzed sequentially, beginning with a minimum
of three samples. Send samples from regions  marked 1, 2 and 3 to the
laboratory first. If one or more samples has more than 1% asbestos,
then treat the Sampling Area as if it contains asbestos. (Note: the May
27,1982 EPA "Friable Asbestos-Containing Materials in Schools; Iden-
tification and Notification Rule" (40 CFR Part 763), currently requires
the collection and analysis of three samples from each Sampling Area
within a school building.) If none of  the first three samples contain
asbestos then send samples from regions 4 and 5 to the laboratory. Con-
tinue in this manner until either asbestos is found in a sample from the
Sampling Area, or until at least the minimum number of samples for
the Sampling Area have been analyzed. Alternatively, to reduce ship-
ping costs, collect and send  all samples to the laboratory at once with
instructions to analyze the samples in the appropriate order. Be careful
not to  reveal to the laboratory which samples come from the same
Sampling Area.
  The potential savings in analysis costs have to be weighed against
the extra information obtained by analyzing all the samples. In many
cases, it may be more efficient to collect and have all the samples ana-
lyzed at once rather than follow this sequential plan.

                                                            13

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 13.   WHAT TO DO IF ASBESTOS IS PRESENT

   If ACM is found in a building, a special operations and maintenance
 (O&M) program should be implemented immediately. The program is
 designed to clean up asbestos fibers previously released, prevent future
 release by minimizing ACM disturbance or damage, and monitor the
 condition of ACM. Details are given in Chapter 3 of the Purple Book.
 EPA's illustrated  pamphlet,  "Asbestos in Buildings: Guidance for Ser-
 vice and Maintenance Personnel" (USEPA 1985), may also be useful
 in publicizing and initiating the special O&M program.
   Once a special O&M program is in place, the ACM should be assessed
 to see if further control action, such as removal or encapsulation of the
 ACM, is necessary. If abatement work is to be done, additional bulk
 samples may help to confirm the results of the initial survey and to ob-
 tain information about the material which will be useful in selecting and
 implementing the abatement program. Further information is provided
 in the Purple Book or can be obtained from your EPA Regional Asbestos
 Coordinator (Appendix 1).
14

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                      REFERENCES
USEPA. 1980.
USEPA. 1985a.
USEPA. 1985b.
USEPA. 1985C.
U.S.  Environmental Protection Agency.  Asbestos-
containing materials in school buildings: guidance
for asbestos analytical programs. Washington, DC:
Office of  Toxic  Substances,  USEPA.  EPA
560/13-80-017A.

U.S. Environmental Protection Agency. Guidance for
controlling asbestos-containing  materials in
buildings. Washington,  DC:  Office  of Toxic
Substances, USEPA. EPA 560/5-85-024.

U.S. Environmental Protection Agency. Asbestos in
buildings: statistical background for sampling friable
surfacing materials. Washington, DC: Office of Tox-
ic Substances, USEPA. EPA 560/5-85-030b.

U.S. Environmental Protection Agency. Asbestos in
buildings: guidance for service and maintenance per-
sonnel. Washington, DC: Office of Toxic Substances,
USEPA. EPA 560/5-85-018.
                                                           15

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   Appendix 1.   EPA Regional Asbestos Coordinators
      Region 1
      (617) 223-0585
      JFK Federal Building
      Boston, MA 02203

      Maine
      Vermont
      New Hampshire
      Connecticut
      Massachusetts
      Rhode Island

      Region 2
      (201) 321-6668
      Woodbridge Avenue
      Edison, NJ 08837

      New York
      New Jersey
      Puerto Rico
      Virgin Islands
      Region 3
      (215) 597-9859
      841 Chestnut Street
      Philadelphia, PA 19107

      Pennsylvania
      Maryland
      Delaware
      Virginia
      West Virginia
      District of Columbia

      Region 4
      (404) 881-3864
      345 Courtland Street NE
      Atlanta, GA 30365

      Georgia
      Alabama
      Mississippi
      Florida
      North Carolina
      South Carolina
      Tennessee
      Kentucky
Region 5
(312) 886-6006
230 S. Dearborn Street
Chicago, IL 60604

Indiana
Ohio
Illinois
Michigan
Wisconsin
Minnesota

Region 6
(214) 767-2734
Interfirst Two Building
Dallas, TX 75270

Texas
New Mexico
Oklahoma
Arkansas
Louisiana

Region 7
(913) 236-2835
726 Minnesota Avenue
Kansas City, KS 66101

Kansas
Missouri
Nebraska
Iowa
Region 8
(303) 293-1742
1860 Lincoln Street
Denver, CO 80295

Colorado
Utah
Wyoming
Montana
North Dakota
South Dakota
16

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Appendix 1.  EPA Regional Asbestos Coordinators
               Continued
     Region 9                        Region 10
     (415) 974-8588                     (206) 442-2870
     215 Fremont Street                 1200 Sixth Avenue
     San Francisco, CA 94105            Seattle, WA 98101

     California                        Washington
     Nevada                          Oregon
     Arizona                          Idaho
     Hawaii                           Alaska
     Guam, Am. Samoa

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 soj7J-»oi
 REPORT DOCUMENTATION
        PAGE
                    I. RETORT NO.
                     EPA 560/5-85-030a
 4. TMto end Subtitle
    Asbestos in Buildings:  Simplified  Sampling Scheme  for
     Friable Surfacing Materials
 7. Airttwrfe)

    Jean Chesson. Bertram P. Price.  Ted Berner
 9. Performing OrcenlieMon Nome end Addrett
    Battelle Columbus Laboratories
    2030 M Street.  NW
    Suite 800
    Washington, D.C.  20036
 U- So.
              i Nome end Address    Battelle  Columbus Labs
 Midwest Research Institute  2030 M   Street, N.W.
 425 Volker Blvd.             Suite 800
 Kansas City, MO  64110      Washington,  D.C.  20036
	                         Subcontractor to MRI
                                                                      S. Reclpisnft Accession No
                                                                   1 Report Dste
                                                                    October,  1985
                                                                   •. Performing Orgenlxetton R»pt. No.
                                                                   10. Pro|ect/Tesk/Wort Unit No.
                                                                   11. OMMractfC) or CrentCG) No.
                                                                   to   68-02-3938

                                                                   fWSubcontract #107-7900-3
                                                                      11. Type of Report 4 Period Covered
                                                                      M.
 IS. tveptemenury Nairn
    This report was prepared for the  Exposure Evaluation  Division of the Office of Toxic
    Substances.   Copies of the document  can be obtained by  calling toll-free  800-424-9065.
    (Call 554-1404  in the District_pf Columbia 0 _                        	
 !•. Abstract (Umtt: 100 wor«H)
    This simplified document provides EPA guidance for sampling friable sprayed-on or
    trovelled-on  materials on ceilings,  vails, and other  surfaces for asbestos.  The
    document furnishes advice for 1)  identifying a sampling area, 2) applying a sampling
    scheme to the area,  3) determining the number to collect,  4) deciding upon sampling
    locations within the area, 5) formulating a quality assurance program for sampling
    and analysis, 6) collecting the samples, 7) submitting  the samples for analysis,
    and 8) Interpreting the laboratory results.  The material  presented is a  summary of
    information and experience gained by EPA through its  Asbestos in Schools  and Buildings
   Program.
17. Oocmmm Anahwte •. Dncripton
                         Asbestos
                         Asbestos-Containing Materials
                         Ajibestos Sampling  Scheme
                         Asbestos Analytical Program
          /Op«n tnd«d
C. COSATI FMd/Onwp

Available to the Public
It. Security CtoM (TM« Report)
Unclassified
10. Security Clm« (Tbta F*|e)
Unclassified

21. No of »••«•»
21
22. Price
                                       See fmtrvcttont on Reverse
                                                                                (Formerly NTIS-15;
                                                                                Department of Commerce

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