UnittdStiM* OffkMOf EPA-520/1-««-008
Environrtwnul Protection Radiation Programs September 1986
Agwwy WUftington. O.C. 20400
Radiition
v>EPA Radon/Radon Progeny
Cumulative Proficiency
Report
(This publication valid through December, 1986}
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RADON/RADON PROGENY CUMULATIVE PROFICIENCY REPORT
(This publication valid through December, 1986).
EPA Analyses - Round I, Round II, & Round II Follow-up
Prepared by
Research Triangle Institute
P.O. Box 12194
Research Triangle Park, NC 27709
Prepared for
Office of Radiation Programs
U.S. Environmental Protection Agency
Washington, DC 20460
September, 1986
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TABLE OF CONTENTS
Page
Introduction 1
Instrument Selection 3
Descriptor Explanation 8
>
Listing of Laboratories' Performance 9
Listing of Laboratories' Service Areas 21
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INTRODUCTION
Recent public concern with health effects related to radon expo-
sure has greatly increased the demand for laboratories qualified to
measure radon and radon progeny in indoor air. In response to requests
for assistance from States, the U.S. Environmental Protection Agency's
Office of Radiation Programs has developed the Radon/Radon Progeny Mea-
surement Proficiency (RMP) Program in which laboratories are invited to
voluntarily demonstrate their proficiency in measuring radon and radon
progeny levels. The primary benefits of the program are twofold:
1. Laboratories are offered an opportunity to improve their qual-
ity assurance programs by attempting to correctly measure es-
tablished levels of radon and radon progeny and by intercom-
parison with other laboratories.
2. This report is available to Federal and State agencies and the
public for use in selecting laboratories for radon and radon
progeny measurements.
The RMP Program is not designed for laboratory accreditation and
does not certify, recommend, or endorse participating laboratories.
The list of program participants is provided by EPA only as a source of
analytical laboratories with demonstrated radon and radon progeny meas-
urement capabilities (Table 1).
EPA has determined that the results of at least two rounds are
needed in order for a laboratory to reliably demonstrate its measure-
ment capabilities. Therefore, laboratories having participated in only
one round of the program are included in the listings on a conditional
basis. EPA has greater confidence in the measurement capabilities of
listed laboratories which have completed their second round of partici-
pation in the program.
Table 1 lists all current participants in alphabetical order with
descriptors of their performance for each round. Their addresses, rep-
resentatives' names and phone numbers are also included. An explana-
tion of each descriptor in Table 1 is found on page 8.
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Each laboratory's performance has been assessed on the basis of
continued participation, compliance with the administrative require-
ments of the program, and sufficient correlation between its screening-
type measurement results and the control laboratory's measurements.
Labs meeting the criteria are listed with an (LI) designator under each
detector type with which they have qualified. After having participat-
ed successfully with a given detector in a previous round of the pro-
gram, a laboratory, which failed to participate or to meet the program
requirements in this round, had the option of being listed on a provi-
sional basis or to have all of its ratings for that detector withdrawn
from the report. Firms that did not meet all of the program require-
ments had the opportunity to upgrade their performance in a special
"follow-up" round. Laboratories for which a detector type met program
requirements in the follow-up round have been given an (LA) designator.
Although the minimum criteria for participating in the RMP Program
are lenient, it recognizes the basic concern of the public - the abili-
ty to determine the presence or absence of potentially harmful levels
of radon and radon progeny. Descriptors indicating laboratory >perform-
ance are measurement method, e.g. grab sampling or charcoal canister
collection, specific and only indicate that laboratory's ability to
perform measurements with that method. For laboratories participating
in the program with more than one type of detector, there is a separate
performance listing for each measurement method entered.
EPA has requested, but not required, that participating laborator-
ies submit for review a copy of their quality assurance plans. An X
under the column headed "QA" in Table 1 indicates that the laboratory
has submitted a plan and it complies to the minimal quality assurance
criteria required by this program.
In Table 2, participating laboratories are listed in alphabetical
order according to the State(s) they serve. Since many firms offer
more than one cype of detector, the specific detectors they offer in
each service area are listed next to the participant's name. Numerous
firms distribute passive detectors and make measurements nation-wide.
Therefore, a separate heading for nation-wide service precedes the in-
dividual State listings in Table 2.
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INSTRUMENT SELECTION
There are several different measurement systems that may be used
to determine the radon or radon decay product concentrations in houses.
In practice, the choice of a system is often dictated simply by availa-
bility - if an adequate system is available, you use it. If alterna-
tive systems are available, then the cost or the duration of the meas-
urement may become the deciding factor. EPA has developed measurement
protocols for seven different systems, and the Agency believes that any
of them, when used in accordance with the protocols, can produce valid
results. This does not mean that all measurements made according to
the suggested protocols will produce results with identical uncertain-
ties, but that any of the listed systems are capable of producing ade-
quate results for screening or follow-up purposes. Each system has its
own advantages and disadvantages, however, and the user must exercise
some judgment in selecting the system best suited to his or her indi-
vidual situation. The following sections detail the characteristics of
the seven systems, pointing out some of the advantages and Disadvan-
tages of each one. This summary is not exhaustive, but is intended to
guide the user in making an informed selection of a measurement system.
Continuous Radon Monitor (CRM) or Continuous working Level
Monitor (CWLM)
These two types of measurement systems are similar in that they
use an electronic detector to accumulate and store information related
to the periodic (usually hourly) average concentration of radon gas or
radon decay products. They are installed in the house according to
guidance in the EPA protocol, turned on or programmed for the desired
operating time - a minimum of 6 hours for screening and 24 hours for
follow-up measurements. At the end of the test the monitor must be re-
trieved and returned to a laboratory for data analysis.
Advantages:
o Relatively short measurement duration.
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o Hourly results can track the variation of concentration in the
house.
o Most models have small precision errors.
o Results are available on-site.
Disadvantages:
o Costly; cost of each unit may range from $2500 - $10,000, de-
pending on model.
o Some models are heavy and awkward to move.
o Requires a trained operator.
o For this, as with any short-term measurement, careful control
of closed house conditions 12 hours prior to and during the
test is required.
Alpha-Track Detectors (AT)
Alpha-track detectors consist of a small sheet of a special plas-
tic material. The material is permanently marked when struck by alpha
particles, such as those emitted by the decay of radon or some of the
short-lived radon decay products. The detectors are usually in a fil-
tered container that serves to make the measurement specific for radon
gas. They are installed in the home according to the guidance in the
EPA protocol and left for periods of up to 3 months for screening and
12 months for follow-up measurements. At the end of the desired test-
ing period, they must be returned to a laboratory for processing and
analysis.
Advantages:
o Relatively low cost per detector; cost of one unit may range
from $20 - $60.
o Convenient to handle and install.
o Unobtrusive when installed.
o No special skills required for deployment.
o Can be distributed by mail.
o Completely passive, needs no external power.
o Can measure the integrated average concentration over a twelve
month period, which is the optimal measure of long-term concen-
tration.
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Disadvantages:
o Relatively long measurement period necessary; 3 months recom-
mended minimum for currently available detectors.
o Large inherent variability (precision errors), particularly at
low concentrations, if the area of the detector that is counted
is small.
Charcoal Canisters (CO
Charcoal canisters are variously configured containers filled with
a measured amount of activated charcoal. The top of the container is
often perforated or screened to keep the charcoal from falling out.
All charcoal devices are covered with an airtight seal when the device
is not being used for measurement. Canisters can be received through
the mail from a distributor. Homeowners can deploy the canisters in
their homes according to the EPA guidance protocol for up to 7 days.
At the end of testing, the canister is resealed and returned to the
distributor or analytical laboratory for evaluation.
Advantages:
o Low cost per canister; one canister may range from $10'- $25.
o Convenient to handle and install.
o Unobtrusive when installed.
o No special skills needed for deployment.
o Can be distributed by mail.
o Completely passive, needs no external power.
o With proper analysis, can yield precise results.
Disadvantages:
o Some canister types are more sensitive to temperature and hu-
midity than others.
o The charcoal absorption technique is inherently limited to a
few days of sampling, which makes a longer term measurement im-
possible with a single detector.
Radon Progeny Integrating Sampling Unit (RPISU)
The RPISU is a radon decay product measurement system consisting
of a flow-rate air pump that pulls air continuously through a detector
assembly containing a thermoluminescent dosimeter (TLD). The unit is
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deployed and operated under conditions prescribed in the EPA protocols
for periods of 3 days or longer. At the end of that time the unit is
removed, and the detector assembly is returned to an analytical labora-
tory for analysis.
Advantages:
o Measures radon decay product concentration directly.
o Relatively short measurement period.
o The detector assembly (not the entire unit) can be sent by
mail.
o There is extensive experience in the use of RPISU's, therefore
measurement errors are well established.
Disadvantages:
o The entire unit may be both heavy and awkward to move.
o May be limited to location with AC power.
o Significant capital cost per unit may be from ($500 - $3,000)
and for the readout system may be from ($5,000 - $10,000).
o Units must be installed and picked up by trained personnel.
o Because of the highly reactive nature of radon decay products,
decay product measurements are much more susceptible to sam-
pling error than radon gas measurements.
o Proper operation may be affected by high concentrations of par-
ticulates, such as those caused by smoking.
Grab Sampling (GW. GR)
Grab sampling consists of taking a small sample of air from the
home and analyzing it for radon gas or radon decay product concentra-
tion in the air contained. The radon grab sample is collected in a
special flask containing 100 to 2000 cubic centimeters of air. The ra-
don decay product grab sample consists of particulates collected on a
small filter. Both samples can be acquired simultaneously with some
systems. The samples should be taken in accordance with guidelines in
the EPA protocols. Results of the grab radon test are usually returned
to the laboratory for analysis; they cannot be analysed for at least 4
hours after testing. For most grab working level tests (radon decay
products), results can be obtained on location in an hour or less.
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Advantages:
o Results are quickly obtained.
o Equipment can be portable.
o Some systems can measure both pCi/1 and WL simultaneously.
o Can acquire and evaluate several samples per day.
o Conditions during the measurement are known to the sampler.
Disadvantages:
o System costs may range from $2,500 - $10,000.
o Very short measurement periods are unlikely to be representa-
tive of the long-term average concentrations.
o Requires a skilled operator.
o For this, as with any short-term measurement, careful control
of closed house conditions 12 hours prior to and during the
test is essential.
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DESCRIPTORS
Detector Types:
AT - Alpha Track (pCi/1)
CC - Charcoal Canister (pCi/1)
CR - Continuous Radon Gas Monitor (pCi/1)
CW - Continuous Working Level Monitor (WL)
GR - Grab Radon Gas Sample (pCi/1)
GW - Grab Working Level Sampler (WL)
RP - Radon Progeny Integrated Sampling Unit - RPISU (WL)
Units;
pCi/1 - picocuries per liter, radon gas measurement units
WL - working level, radon decay products measurement units
Qualification Designations:
LI - Level 1
Detector for which a laboratory met all program
requirements, including minimum screening measurement
requirements (analysis within 25% of actual detector
exposure levels).
LA - Level 1
Follow-up
Detector for which a laboratory met all program
requirements, including minimum screening measurement
requirements (analysis within 25% of actual detector
exposure levels) upon second attempt in follow-up
round.
Others;
DT - Detector(s) damaged or lost through no fault of the participant.
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TABLE 1
PARTICIPATING LABORATORIES
DOTE OF RADON WDRKING LEVEL QUALITY
RON) l€ASUR£h€NT MEASUREMENT ASSURANCE
GRABSAK>LE PLAN
* LABORATORY AT CC CR GR GW RP CW
AAA RADON SERVICES 7/86 Q
P. 0. BOX F
1301 WILHELM ROAD
HELLERTOWN, PA 18055
ROBERT GROSSET
(215) 838-7164
AIR-N-SOL CORPORATION 4/86 Q Q X
3 CEDAR STREET 7/86 Q LI Q
FRENCHTOUN, NJ 08825 8/86 LA
DALE JOHNSON
(201) 996-2028
AJRCHEK 4/86 Q . X
543 KING ROAD 7/86 Q
P. 0. BOX 100
PENROSE, NC 28766
BV ALVAREZ
800/257-2366,704/862-4037
ALLIED LABORATORIES, INC. 7/86 U Q X
520 US HIGHLY 202
P. 0. BOX 247
MORRIS PLAINS, NJ 07950
EDWARD O'DEVIN, JR.
(201) 539-4343
AfCRSHAM CORPORATION 7/86 U
2636 SOUTH CLEARBROOK DRIVE
ARLINGTON HEIGHTS, IL 60005-4692
MARK A. DORUFF
(312) 593-6300
ATLANTIC ENVIRONMENTAL, INC. 4/86 U
3108 ROUTE 10 7/86 LI
SUITE 7
DENVILLE, NJ 07834
RICHARD A. ERIOGCN
(201) 366-4660
BIOfDICAL TOXICOLOGY ASSOCIATES 7/86 Q
P. 0. BOX 3568
6184 VIEV6ITE DRIVE
FREDERICK, MD 21701
WINIFRED G. PALMER, PH.D.
(301) 662-0783
* SEE TABLE 2 FOR THE STATES EACH LABORATORY SERVES.
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TABLE 1
PARTICIPATE LABORATORIES
DATE OF RADON WORKING LEVEL QUALITY
ROUND fCASUREMENT fCASUREMENT ASSURANCE
GRABSAWLE PLAN
LABORATORY AT CC CR GR GW RP CW
CON-TEST 7/85 Q
P. 0. BOX 591
EAST LGNGTCAOCW, W 01028
GARYL. RITTER
(413) 525-1198
CONNECnCUTT RADON & ENVIRONMENTAL 7/86 Q
TESTING CO., INC.
1 PHEASANT LANE
WESTPORT, CT 06880
OR. JUDITH AUSLANDER
(203) 226-5173
CONTINENTAL ENVIRONMENT CO., INC. 4/86 Q
34 WPLE STREET 7/86 Q
suwrr, NJ 07901
ALVIN M. NATION
(201) 277-2255
EBERUNE ANALYTICAL CORP. 4/86 U
P. 0. BOX 3874 7/86 Q
3635 KIRCHER BLVD., N.E.
ALBERQUERQUE, Ml 87190
NELS JONSCN
(505) 345-9921
EBERLINE INSTRUMENT CORP. 4/86 Q
P. 0. BOX 2108 7/86 Q
AIRPORT ROAD
SANTA FE, Ml 87504-2108
ERIC L. GEIGER
(505) 471-3232
EDA INSTJUeTS, INC. 7/86 Q
5151 WARD ROAD
WHEAT RIDGE, CO 80033
DAVID LASHER
(800) 654-0506
ELECTRO «DWGCAL CONCEPTS, INC. 4/86 Q
130 MOUNTAINEER LANE 7/86 Q
WEST MIFFUN, PA 15122
MATTKJVAC
(412) 276-2272
* SE TABLE 2 FOR THE STATES EACH LABORATORY SERVES.
10
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TABLE 1
PARTICIPATING LABORATORIES
LABORATORY
DATE OF RADON WORKING LEVEL QUALITY
ROUND MEASUREMENT MEASUREMENT ASSURANCE
GRABSAMPLE PLAN
AT CC CR GR GW RP CW
ENRAD, INC./RAD.T. & ENS., INC. 7/86 Q
18705-8 NORTH FREDERICK ROAD
GAITHERSBURG, MD 20879
CHARLES L. OSTERBERG
(301) 948-8040
ENVIRADON 7/86 Q
914 ROLLINGWOCD DRIVE
MT. HOLLY, NC 28120
TIM OWENS
(704) 827-1293
ENVIRONCNTAL CONSULTANTS ASSOC. 7/86 Q
14RAMAPOLANE
UPPER SADDLE RIVER, NJ 07458
DR. RICHARD W. GOODWIN
(201) 934-9866
ENVIRON€NTAL RADIOACTIVITY MEASURE 7/86
105 LEXOW AVENUE 7/86
UPPER NYACK, NY 10960
KATHERINE ELLINS
(914) 353-3513
ENVIRDNCNTAL TESTING & CONSULTING 4/86 LI
1316 GRESS STREET 7/86 LI
MANVILLE, NJ 08835
THOMAS R. REILLY
(201) 722-5293
ENVIROSERV 7/86 " LI
15 BUCKLEY HILL ROAD
MORRISTOWN, NJ 07960
DCNAU3M. ULBRICH
(201) 285-1065
FORESIGHT ENGINEERING 4/86 Q
P. 0. BOX 63 7/86 Q
21 KNOUUXD AVE.
MADISON, HJ 07940
THERESA KAUFMANN
(201) 377-0602
Q
+ L1
LI
LI
Q
* SEE TABLE 2 FOR THE STATES EACH LABORATORY SERVES.
+ INTEGRATED READING OVER A 72 HOUR PERIOD.
11
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TABLE 1
PARTICIPATING LABORATORIES
LABORATORY
DATE OF RADON WDRKING LEVEL QUALITY
ROUND MEASUREMENT MEASUREMENT ASSURANCE
GRABSWPLE PLAN
AT CC CR GR GW RP CW
GENERAL HEALTH PHYSICS
7217 LCCKPCRT PL.
LORTON, VA 22079
JOHN B. DAVIS
(703) 550-7525
GEOMET TECHNOLOGIES, INC.
20251 CENTURY BLVD.
GERMWTCW, MD 20874
NIREN L. NAGDA
(301) 428-9698
GLENWOOD LABORATORIES, INC.
3 SCIENCE ROAD
GLENWOCO, IL 60425-1579
R. CRAIG VODER
(312) 755-7911
HEALTH PHYSICS ASSOCIATES
RD1, BOX 796
LENHARTSVILLE, PA 19534
ANTHONY LAWSTRA
(215) 756-4153
HEALTH PHYSICS ASSOCIATES LTD.
3304 CCM€RCIAL AVENUE
NORTHBROOK, IL 60062
WILLIAM B. RIVKIN
(312) 564-3330
HOUSEMASTER OF AMERICA
421 WEST UNION AVENUE
BOUND BROOK, NJ 06805
JOffl HBGRICKS
(201) 469-6050
INFILTEC. OIV. OF SAUM ENTERPRISES
P. 0. BOX 1533
5597 SEMINARY ROAD
FALLS CHURCH, VA 22041
DAVE SAUM
(703) 820-7696
7/86
Q
4/86 Q
7/86 Q
4/86 Q
8/86 LA
7/86
7/86
Q
Q Q
5/86 LI
7/86 Q
7/86 LI Q Q
SEE TABLE 2 FOR THE STATES EACH LABORATORY SERVES.
12
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TABLE 1
PARTICIPATING LABORATORIES
WTE OF RADON VCRKING LEVEL QUALITY
ROUND MEASUREMENT MEASUREMENT ASSURANCE
GRABSAMPLE PLAN
LABORATORY AT CC CR GR GW RP CW
KEY TECHNOLOGY, INC.
2503 HEILMANDALE RD.
JONESTCW, PA 17038
4/86
7/86
LI
Q
X
CLAUDE M. WIBUN
(717) 867-5475
MAINE STATE DEPT. OF HUMAN SERVICES 4/86 Q
PUBLIC HEALTH LABORATORY STATION 12 7/86 Q
221 STATE STREET
AUGUSTA, ME 04333
CHERYL BAKER
(207) 289-2727
MAR/GAT ENTERPRISES 7/86 LI
874 E. NORTHWEST HIGHLY
MT. PROSPECT, IL 60056
RONGARBACZ
(312) 577-0979
MARLINE ENVIRONMENTAL TESTING INC. 7/86 LI Q
SUITE 326 MASCNIC BUILDING
105 SCUTH UNICN STREET
DANVILLE, VA 24541
CHRISTCfHER R. HALLADAY
(804) 792-1100
MONTANA DEPT. OF HEALTH & ENV. SCI. 7/86 Q
OCCUPATIONAL HEALTH BUREAU
COGSWELL BUILDING
HELENA, MT 59620
LARRY L. LLOYD
(406) 444-3671
NJ. DEPT. OF ENVIRONMENTAL PROT. 4/86 Q
ENVIRONMENTAL LABS ADMINISTRATION 7/86 Q
380 SCOTCH ROAD
TRENTON, NJ 06628
PAT GARDNER
(609) 530-4100, -4106
NJ. STATE DEPT. OF ENV. PROTECTION 4/86 Q LI
BUREAU OF RADIATION PROTECTION 7/86 Q Q
380 SCOTCH ROAD
TRENTON, NJ 06628
DUNCAN WHITE
(609) 530-4050
* SEE TABLE 2 FOR THE STATES EACH LABORATORY SERVES.
13
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TABLE 1
PARTICIPATING LABORATORIES
DATE OF RADON WORKING LEVEL QUALITY
ROUND MEASUREMENT MEASUREMENT ASSURANCE
GRABSAMPLE PLAN
* LABORATORY AT CC CR GR GW RP CW
NATIONAL RACCN CONTROL, INC. 4/86 LI
197 MEISTER AVE 7/86 LI
BOX 5342
NORTH BRANCH, NJ 08876
DAVID T. DENEUFVILLE
(201) 231-0844
NUCLBDN LECTERN ASSOCIATES, INC. 4/86 Q
2919 OLNEY-SANDY SPRING RO. 7/86 LI
SUITED
OLNEY, MD 20832
MICHAEL S. TERPILAK
(301) 774-3301
0. K. REMS CORP. 7/86 Q LI
174 FLOCK ROAD
MERCERVIULE, NJ 08619
JEFFREY C. OLCOTT
(609) 588-9627
OVERMAN ASSOCIATES 4/86 Q
P. 0. BOX 171 7/86 Q
702 N. LAFTTTE DRIVE
BONNE TERRE, MO 63628
RALPH T. OVERMAN
(314) 562-7020
PRODUCT ANALYSIS & STRUCTURAL TEST. 7/86 Q
6800 WALES ROAD
NCRTHWOCO, CH 43619
TIMOTHY WILSCN
(419) 691-8484
PYRAMID ENVIRONMENTAL SYSTEMS, INC. 7/86 Q
30 OAK TREE LANE
SPARTA, NJ 07871
JEFFREY R. DECHACCN
(201) 729-9375
R. S. UV0UER, JR. & CO. 4/86 LI X
2 SCIENCE ROM) 8/86 LA
GL3WOOD, IL 60425-1586
R. CRAIG YCOER
(312) 755-7000
* SEE TABLE 2 FOR THE STATES EACH LABORATORY SERVES.
14
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TABLE 1
PARTICIPATING LABORATORIES
LABORATORY
DATE OF RADON VyCRKING LEVEL QUALITY
ROM) MEASUREMENT MEASUREMENT ASSURANCE
GRABSAMPLE PLAN
AT CC CR GR GW RP CW
4/86 LI
7/86 LL
4/86 Q
7/86
8/86 LA
5/86 Q
7/86 LI
R.A.D. SERVICE AND INSTRUMENTS LTD. 7/86
50 SILVER STAR BLVD., UNIT 208
SCARBOROUGH, ONTARIO CANADA MIV 3L3
DR. H. L. PAI
(416) 298-9200
R.K. OCCUPATIONAL & ENV. ANALYSIS
19 BURROWS AVENUE
BERNARDSVILLE, NJ 07924
GEORGE D. MOGUINNES
(201) 766-1737
RADIATION SAFETY SERVICES, INC.
1564 ASHLAND AVE.
EVANSTON, IL 60201-4070
ELI A. PORT
(312) 866-7744
RADIATION SERVICE ORGANIZATION
P. 0. BOX 1526
711 GOWN AVENUE
LAUREL, MD 20707-0953
GREGORY D. SMITH
(301) 953-2482
RADIATION SURVEYS INCORPORATED 7/86
1528 HAMBURG TPKE.
WAYNE, NJ 07470
CAROLYN DAVIS
(201) 628-1703
RACCN ALERT DETECTION CENTER 7/86
P. 0. BOX 323
FLOURTOUN, PA 19031
ULRICH W. HIESINGER, PH.D
(215) 248-0628
RADCN WHISTS 7/86 Q
P. 0. BOX 509
R.D. 2 BOX 453
LIVINGSTON MANOR, NY 12758
ROBERT L. KCNVAUN
914/292-2277 OR 439-5111
Q
LI
Q LI
Q
* SEE TABLE 2 FOR THE STATES EACH LABORATORY SERVES.
15
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TABLE 1
PARTICIPATE LABORATORIB
DATE OF RADON WORKING LEVEL QUALITY
ROUND MEASUREMENT MEASUREMENT ASSURANCE
GRABSAMPLE PLAN
* LABORATORY AT CC CR GR GW RP CW
RADON ANALYSIS, INCORPORATED 7/86 Q X
P.O. BOX 561M FOX RUN
STEWARTSVILLE, NJ 08886
DAVID CHIPPENDALE
(201) 479-6086
RADON DETECTION SERVICES, INC. 4/86 Q Q Q Q LI
P. 0. BOX 419 7/86 Q Q LI U LI
OLD YORK RD. C/0 N.C. HUNT BLDG.
RINGOES, NJ 08551
JAMES G. DAVIDSON
(201) 788-3080
RADON DETECTION SYSTEMS 7/86 Q Q
2300 CENTRAL AVE. 8/86 LA
SUITE B-l
BOULDER, CO 80301
TIM SMITH
(303) 444-5253
RADON ENGINEERING 4/86 Q Q U X
A UNIT OF PSI ENGINEERING 7/86 Q Q LI'
ONE LETHBRIDGE PLAZA, P.O. BOX 549
MAHWAH, NJ 07430-0549
(201) 529-8300
RADON INSPECTION SERVICE 4/86 Q LI
787 EAST GLEN AVENUE 7/86 Q Q Q Q
RIDGEWOOD, NJ 07901
ROBERTO. SHUMEYKD
(201) 670-8821
RADON MEASUREMENT AND SERVICES 4/86 Q
13131 WEST CEDAR DRIVE 7/86 Q
LAKEWOOD, CO flTCTR
R. STOlfY THOMPSON
(303) 968-3033
RADON RESEARCH GROUP 7/86 Q X
P. 0. BOX 1143
6 CROSS LAUREL CT.
GERMANTOUN, MD 20874
MICHAEL 0. MYERS
(301) 972-3309
* SEE TABLE 2 FDR THE STATES EACH LABORATORY SERVES.
16
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DATE Oft TAB BA0CN WORKING LEVEL QUALITY
PARTICIPATING LABORATORIES ^~
ROUND MEASUREMENT MEASUREMENT ASSURANCE
GRAB SAMPLE PLAN
* LABORATORY AT CC CR GR GW RP CW
RADON SAFETY SERVICE, INC. 7/86 Q LI X
P. 0. BOX 441
107 CRANE CIRCLE
NEW PROVIDENCE, NJ 07974
BERNARD M. ODELSON
(201) 665-1188
RADON TESTING CORP. OF Ah€RICA 7/86 LI
RTCA
12 V£ST MAIN ST.
ELMSFORD, NY 10523
ROBERT M. AMRAM
(914) 347-5010
RECON SYSTEMS, INC. 7/86 Q
ROUTE 202 NORTH 8/86 Q
P. 0. BOX 460
THREE BRIDGES, NJ 08887
NORMAN J. VEINSTEIN PH.D.
(201) 782-5900
RETROTEC USA, INC. 7/86 Q
6215 MORENCI TRAIL
INDIANAPOLIS, IN 46268
RICHARD A. JORDAN
(317) 297-1927
REYNOLDS RADIOLOGICAL SERVICES, INC 7/86 Q
R.D. 1, BOX 271-5
BAINBRIDGE, PA 17502
H. W. REYNOLDS
717/367-7829,717/653-9366
ROGERS & ASSOC. ENGINEERING CORP. 7/86 LI
515 EAST 4500 SOUTH
SUITE 6-250
SALT LAKE CITY. UT 84107
KIRK 1C NIELSON
(801) 263-1600
ROSS SYS7BG, INC. 4/86 Q LI LI
628 STATE HIGHLY 10 7/86 Q LI Q
WIPPANY, NJ 07981
RICHARD ROSS
(201) 428-9088
SEE TABLE 2 FOR THE STATES EACH LABORATORY SERVES.
17
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* LABORATORY
TABLE 1
PARTICIPATING LABORATORIES
DATE OF RADON WORKING LEVEL QUALITY
ROUND I€ASUREMENT ^€ASUR£MENT ASSURANCE
GRABSNfLE PLAN
AT CC CR GR GW RP CW
SCIENCE WNAGBfNT SERVICE, LTD. 7/86
25 ESHELMANROAD
LANCASTER, PA 17601
0. CWIGHT BROWNING
(717) 392-1425
SCIENTIFIC ANALYSIS, INC. 5/86 Q
6012 SHIRLEY LANE 7/86 Q
WNTGO€RY, AL 36117
JOHN ALLEN GUNN
(205) 271-0643
SHERLOCK HOC INSPECTORS INC. 8/86 Q
REGIONAL PROCESSING CENTER
6-01 FAIR LAW AVENUE
FAIR LAW, N) 07410
DANSCHIANO
(201) 79fr4942
SHOTWELL ASSOCIATES 7/86
80X83
40 CEDAR STREET
BUDD LAKE, NJ 07828
HENRY P. SHOMLL
(201) 691-9037
TCS INDUSTRIES 5/86 Q
4326 CRESTVIEW ROAD 7/86 Q
HARRISBURG, PA 17112
CARL H. DISTENFELD
(717) 657-7032
TELEDYNE ISOTOPES MIDWEST LAB. 7/86 LI
1509 FRONTAGE ROAD
NORTHBROOK, IL 60062
(312) 564-0700
TELEOYIC ISOTOPES, INC. 4/86 LI
50 VAN BUREN AVENUE 7/86 Q
WESTWCCD, NJ 07675
J. DAVID WRTTN
(201) 664-7070
LI
Q
* SEE TABLE 2 FOR THE STATES EACH LABORATORY SERVES.
18
-------
TABLE 1
PARTICIPATING LABORATORIES
DATE OF RADON WORKING LEVEL QUALITY
ROUN) MEASUREMENT MEASUREMENT ASSURANCE
GRAB SAMPLE PLAN
* LABORATORY AT CC CR GR GW RP CW
TERRAOEX CORPORATION 4/86 Q X
460 N. WIGET LANE 7/86 LI
WLNUT CREEK, CA 94598
SAM TAYLOR
(415) 938-2545
TERRAOYNAMICS CORPORATION 7/86 Q
ROUTE 1, BOX 42-C
ALDIE, VA 22001
DR. JCHNBEBCUT
703/435-3033,703/327-6500
THEROUX ENGINEERING 7/86 Q
P. 0. BOX 4096
380 PINE ROCK
HAMDEN, CT 06514
OENNISR. THEROUX
(203) 248-9715
U.S. ENVIRCNfNTAL PROTECTION AGNCY 4/86 Q
OfC OF RAO. P96., LAS VEGAS FaTY. 7/86 Q
944 EAST HAflMQN AVE.
LAS VEGAS, NV 89114
RICHARD D. HOPPER
(702) 798-2447
U.S. ENVIRONMENTAL PROTECTION AGNCY 4/86 LI Q
EASTON ENVIRON. RADIATION FACILITY 7/86 U LI
P. 0. BOX 3009, 1890 FEDERAL DRIVE
MONTGCMERY, AL 36109
(205) 272-3402
U.S. TOXIC SUBSTANCE TESTING BUREAU 7/86 LI Q
EASTERN FIELD OFFICE
SUITE 102, 12 PARK LANE
FEASTERVILLE, PA 19047
BEPNMDL. LEIBER
(215) 364-3428
UNIV. OF TEXAS SCH. OF PUB. HEALTH 4/86 Q *
P. 0. BOX 20186 7/86 Q
1200 HERWi PRESSLER
HOUSTON, TX 77225
HCWRO M. PRICHARD, V622
(713) 792-4421
* SEE TABLE 2 FOR THE STATES EACH LABORATORY SERVES.
19
-------
TABLE 1
PARTICIPATING LABORATORIES
DATE OF RADON WORKING LEVEL QUALITY
ROJN) ^€ASURE^€NT ^€ASUREMENT ASSURANCE
GRABSWLE PLAN
* LABORATORY AT CC CR GR GW RP CW
UNIVERSITY OF PITTSBURGH 4/86 Q X
PHYSICS DEFT. RACON PROJECT 8/86 LA
3941 O'HARA STREET
PITTSBURGH, PA 15260
BERNARD L. COHEN
(412) 624-4290
VIRGINIA DEFT. OF HEALTH 7/86 Q
BUREAU OF RADIOLOGICAL HEALTH
RICHMOND, VA 23219
OWES A. DEKRAFFT
(804) 786-5932
* SEE TABLE 2 FOR THE STATES EACH LABORATORY SERVES.
t
20
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TABLE 2
LABORATORIES BY SERVICE AREAS
STATE
LABORATORY
DETECTION METHODS
NATIONAL
AIRCHEK
AMERSHAM CORPORATION
EBERLINE ANALYTICAL CORP.
EBERLINE INSTRUMENT CORP.
EDA INSTRUMENTS, INC.
ELECTRO MECHANICAL CONCEPTS, INC.
ENVIROSERV
GEOMET TECHNOLOGIES, INC.
GLENWOOD LABORATORIES, INC.
HEALTH PHYSICS ASSOCIATES
HEALTH PHYSICS ASSOCIATES LTD.
HOUSEMASTER OF AMERICA
INFILTEC, DIV. OF SAUM ENTERPRISES
KEY TECHNOLOGY, INC.
MAINE STATE DEPT. OF HUMAN SERVICES
MARLINE ENVIRONMENTAL TESTING INC.
NATIONAL RADON CONTROL, INC.
0. K. REMS CORP.
OVERMAN ASSOCIATES
PRODUCT ANALYSIS & STRUCTURAL TEST.
PYRAMID ENVIRONMENTAL SYSTEMS, INC.
R. S. LANDAUER, JR. & CO.
R.A.D. SERVICE AND INSTRUMENTS LTD.
RADIATION SAFETY SERVICES, INC.
RADIATION SERVICE ORGANIZATION
RADON ALERT DETECTION CENTER
RADON ANALISTS
RADON ANALYSIS, INCORPORATED
RADON DETECTION SERVICES, INC.
RADON INSPECTION SERVICE
RADON MEASUREMENT AND SERVICES
RADON RESEARCH GROUP
RADON TESTING CORP. OF AMERICA
RETROTEC USA, INC.
ROGERS & ASSOC. ENGINEERING CORP.
ROSS SYSTEMS, INC.
SCIENTIFIC ANALYSIS, INC.
TCS INDUSTRIES
TELEDYNE ISOTOPES MIDWEST LAB.
TELEDYNE ISOTOPES, INC.
TERRADEX CORPORATION
U.S. ENVIRONMENTAL
U.S. ENVIRONMENTAL PRO'
UNIV. OF TEXATSCH. '~ _
UNIVERSITY OF PITTSS6R0f-
CC
CC
GW
CW
CC
CC
CC
CC
AT
CC.GR.GW
CC
CC
AT,CC,CR
CC
CC
AT,CC
RP
CC
CC
CC
CW
AT
RP
AT,GW
CC
CC
AT
CC
AT.CC
AT
AT
AT
CC
CC
CC
AT,CC
CC
CC
CC
CC
AT
SEE TABLE 1 FOR ADDRESSES ANB MEASUREMENT PROFICIENCY
21
-------
TABLE 2
LABORATORIES BY SERVICE AREAS
STATE
* LABORATORY DETECTION METHODS
ALABAMA
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
ALASKA
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
ARIZONA
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
ARKANSAS
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
CALIFORNIA
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
COLORADO
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
RADON DETECTION SYSTEMS AT.CC
CONNECTICUTT
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
CON-TEST GW
CONNECTICUTT RADON & ENVIRONMENTAL CC
CONTINENTAL ENVIRONMENT CO., INC. CC
ENVIRONMENTAL CONSULTANTS ASSOC. CC
ENVIRONMENTAL RADIOACTIVITY MEASURE GR
ENVIROSERV CW
NUCLEON LECTERN ASSOCIATES, INC. CC
RADON ENGINEERING AT,CC,CW
RADON INSPECTION SERVICE CC,GR,GW
RECON SYSTEMS, INC. AT.CC
ROSS SYSTEMS, INC. GW
THEROUX ENGINEERING CC
* SEE TABLE 1 FOR ADDRESSES AND MEASUREMENT PROFICIENCY
22
-------
TABLE 2
LABORATORIES BY SERVICE AREAS
STATE
* LABORATORY DETECTION METHODS
DELAWARE
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
ENVIROSERV CW
NUCLEON LECTERN ASSOCIATES, INC. CC
RADON DETECTION SERVICES, INC. GR,GW,CW
RECON SYSTEMS, INC. AT CC
U.S. TOXIC SUBSTANCE TESTING BUREAU CC.CW
DISTRICT OF COLUMBIA
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
ENRAD, INC./RAD.T. & ENG., INC. CC
MARLINE ENVIRONMENTAL TESTING INC. CW
NUCLEON LECTERN ASSOCIATES, INC, CC
RADON DETECTION SERVICES, INC. GR.GW.CW
TERRADYNAMICS CORPORATION AT
FLORIDA
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
ENVIRONMENTAL CONSULTANTS ASSOC. CC
ENVIRONMENTAL RADIOACTIVITY MEASURE GR
GEORGIA
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
HAWAII
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
IDAHO
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
RADON DETECTION SYSTEMS AT.CC
ILLINOIS
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
MAR/GAT ENTERPRISES CC
* SEE TABLE 1,FOR ADDRESSES AND MEASUREMENT PROFICIENCY
23
-------
TABLE 2
LABORATORIES BY SERVICE AREAS
* LABORATORY DETECTION METHODS
INDIANA
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
IOWA
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
KANSAS
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
KENTUCKY
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
LOUISIANA
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
MAINE
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
CON-TEST GW
NUCLEON LECTERN ASSOCIATES, INC. CC
MARYLAND
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
BIOMEDICAL TOXICOLOGY ASSOCIATES CC
CONTINENTAL ENVIRONMENT CO., INC. CC
ENRAD. INC./RAD.T. & ENG., INC. CC
ENVIROSERV CW
GENERAL HEALTH PHYSICS GW
MARLINE ENVIRONMENTAL TESTING INC. CW
NUCLEON LECTERN ASSOCIATES. INC. CC
RADON DETECTION SERVICES, INC. GR,GW,CW
RECON SYSTEMS, INC. AT,CC
TERRADYNAMICS CORPORATION AT
* SEE TABLE 1 FOR ADDRESSES AND MEASUREMENT PROFICIENCY
24
-------
TABLE 2
LABORATORIES BY SERVICE AREAS
STATE
* LABORATORY DETECTION METHODS
MASSACHUSETTS
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
CON-TEST GW
CONNECTICUT RADON & ENVIRONMENTAL CC
NUCLEON LECTERN ASSOCIATES, INC. CC
RECON SYSTEMS, INC. AT.CC
MICHIGAN
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
MINNESOTA
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
MISSISSIPPI
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
MISSOURI
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
MONTANA
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
MONTANA DEPT. OF HEALTH & ENV. SCI. GR
NEBRASKA
EE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
NEVADA
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
* SEE TABLE 1 FOR ADDRESSES AND MEASUREMENT PROFICIENCY
25
-------
TABLE 2
LABORATORIES BY SERVICE AREAS
STAT * LABORATORY DETECTION METHODS
NEW HAMPSHIRE
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
CON-TEST GW
CONNECTICUT! RADON & ENVIRONMENTAL CC
NUCLEON LECTERN ASSOCIATES, INC. CC
NEW JERSEY
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
AAA RADON SERVICES CC
AIR-N-SOL CORPORATION AT,CC,GR,GW
ALLIED LABORATORIES, INC. AT.CC
ATLANTIC ENVIRONMENTAL, INC. GW
CONTINENTAL ENVIRONMENT CO., INC. CC
ENVIRONMENTAL CONSULTANTS ASSOC. CC
ENVIRONMENTAL RADIOACTIVITY MEASURE GR
ENVIRONMENTAL TESTING & CONSULTING CC,CW
ENVIROSERV CW
FORESIGHT ENGINEERING CC
GENERAL HEALTH PHYSICS GW
NUCLEON LECTERN ASSOCIATES, INC. CC
0. K. REMS CORP. GW
R.K. OCCUPATIONAL & ENV. ANALYSIS CC
RADIATION SURVEYS INCORPORATED GR,GW
RADON DETECTION SERVICES, INC. GR,GW,CW
RADON ENGINEERING AT,CC,CW
RADON INSPECTION SERVICE CC.GR.GW
RADON SAFETY SERVICE, INC. RP.CW
RECON SYSTEMS, INC. AT.CC
ROSS SYSTEMS, INC. GW
SHERLOCK HOME INSPECTORS INC. CC
SHOTWELL ASSOCIATES GW
U.S. TOXIC SUBSTANCE TESTING BUREAU CC.CW
NEW MEXICO
E S E THE NATIONAL ISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
RADON DETECTION SYSTEMS AT.CC
NEW YORK
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
AIR-N-SOL CORPORATION AT.CC.GR.GW
CON-TEST GW
CONNECTICUT! RADON & ENVIRONMENTAL CC
* SEE TABLE 1 FOR ADDRESSES AND MEASUREMENT PROFICIENCY
26
-------
TABLE 2
LABORATORIES BY SERVICE AREAS
STATE
* LABORATORY DETECTION METHODS
NEW YORK CONTINUED
CONTINENTAL ENVIRONMENT CO., INC. CC
ENVIRONMENTAL CONSULTANTS ASSOC. CC
ENVIRONMENTAL RADIOACTIVITY MEASURE GR
ENVIRONMENTAL TESTING & CONSULTING CC.CW
ENVIROSERV CW
NUCLEON LECTERN ASSOCIATES, INC. CC
RADON DETECTION SERVICES, INC. GR,GW,CW
RADON ENGINEERING AT CC CW
RADON INSPECTION SERVICE CC.GR.GW
RADON SAFETY SERVICE, INC. RP.CW
RECON SYSTEMS, INC. AT.CC
ROSS SYSTEMS, INC. GW
SHOTWELL ASSOCIATES GW
NORTH CAROLINA
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
ENVIRADON AT
GENERAL HEALTH PHYSICS GW
MARLINE ENVIRONMENTAL TESTING INC. CW
NORTH DAKOTA
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
OHIO
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
OKLAHOMA
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
OREGON
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
SEE TABLE 1 FOR ADDRESSES AM) MEASUREMENT PROFICIENCY
27
-------
TABLE 2
LABORATORIES BY SERVICE AREAS
STATE * LABORATORY DETECTION METHODS
PENNSYLVANIA
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
AAA RADON SERVICES CC
AIR-N-SOL CORPORATION AT,CC,GR,GW
AIR/WATER TECHNOLOGY AT
CONTINENTAL ENVIRONMENT CO., INC. CC
ENVIRONMENTAL TESTING & CONSULTING CC.CW
ENVIROSERV CW
GENERAL HEALTH PHYSICS GW
KEY TECHNOLOGY, INC. GW
NUCLEON LECTERN ASSOCIATES, INC. CC
0. K. REMS CORP. GW
RADON DETECTION SERVICES, INC. GR.GW.CW
RADON ENGINEERING AT,CC,CW
RADON INSPECTION SERVICE CC.GR,GW
RADON SAFETY SERVICE, INC. RP.CW
RECON SYSTEMS, INC. AT,CC
REYNOLDS RADIOLOGICAL SERVICES, INC CW
ROSS SYSTEMS. INC. GW
SCIENCE MANAGEMENT SERVICE, LTD. GW
SHOTWELL ASSOCIATES GW
U.S. TOXIC SUBSTANCE TESTING BUREAU CC,CW
RHODE ISLAND
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
CON-TEST GW
CONNECTICUTT RADON & ENVIRONMENTAL CC
NUCLEON LECTERN ASSOCIATES, INC. CC .
RECON SYSTEMS, INC. AT.CC
SOUTH CAROLINA
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
ENVIRAOON AT
SOUTH DAKOTA
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
TENNESSE
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
* SEE TABLE 1 FOR ADDRESSES AND MEASUREMENT PROFICIENCY
28
-------
TABLE 2
LABORATORIES BY SERVICE AREAS
STATE
* LABORATORY - DETECTION METHODS,
TEXAS
SEE THE NATIONAL LISTIN3 ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
UNIV. OF TEXAS SCH. OF PUB. HEALTH CC
UTAH
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
RADIATION SURVEYS INCORPORATED GR.GW
VERMONT
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
CON-TEST . .- gy
CONNECTION RADON & ENVIRONMENTAL CC
NUCLEON LECTERN ASSOCIATES, INC* CC
VIRGINIA
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING"THIS STATE
CONTINENTAL ENVIRONMENT CO., INC. CC
ENRAD. INC./RAD.tV&EHG., INC. CC
GENERAL HEALTH PHYSICS . GW •
MARLINE ENVIRONMENTAL TESTING INC. CW
NUCLEON LECTERN ASSOCIATES, INC. CC
RADON OETECtlOW SERVICES,: INC. r GR,GW,CW
TERRADYNAHICS CORPORATION"- <" .-' AT
WASHINGTON
SEE THE NATIONAL LISTING ON PAGE 2J
FOR LABORATORIES S^RVIffe THIS STATE
WEST VIRGINIA
SEE THE NATIONAL, LUTING ON-f AGE 21 - •
FOR OTHER LA80HATOR&S,' SERVING THI.S STATE
GENERAL HEALTH PHYSICS^ • GW
NUCLEON LECTERN ASSOCIATES, INC. CC
* SEE TABLE 1 FOR ADDRESSES AND MEASUREMENT PROFICIENCY
29
-------
TABLE 2
LABORATORIES BY SERVICE AREAS
STATE
* LABORATORY DETECTION METHODS
WISCONSIN
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
WYOMING
SEE THE NATIONAL LISTING ON PAGE 21
FOR OTHER LABORATORIES SERVING THIS STATE
RADON DETECTION SYSTEMS AT.CC
PUERTO RICO
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
VIRGIN ISLANDS
SEE THE NATIONAL LISTING ON PAGE 21
FOR LABORATORIES SERVING THIS STATE
* SEE TABLE 1 FOR ADDRESSES AND MEASUREMENT PROFICIENCY
•ft
30
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