United States
Environmental Protection
Agency
Office of
Radiation Programs
Washington, D.C. 20460
EPA-520/1-88-025-30
September 1988
Radiation
&EPA
The National Radon
Measurement Proficiency
(RMP) Program
Proficiency Report:
New Hampshire
(This publication valid through May 1989)
A Report Listing
Radon and Radon Decay Product Measurement Companies
-------
NATIONAL RADON MEASUREMENT PROFICIENCY (RMP) PROGRAM
PROFICIENCY REPORT: NEW HAMPSHIRE
EPA Test Round 5
Prepared by
Research Triangle Institute
Radon Technical Information Service
Research Triangle Park, NC 27709
Prepared for
Radon Division (ANR-464)
Office of Radiation Programs
U.S. Environmental Protection Agency
Washington, DC 20460
Under the Direction of
US EPA Task Manager
Joseph R. Gearo, Jr.
National Coordinator
National (RMP) Program
September 1988
11
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Table of Contents
Page
Introduction 1
Selection of Measurement Method 1
Program Requi rements 5
Explanation of Abbreviations 6
Table 1: Measurement Companies Serving
Your State 7
Appendix - Radon Instrumentation A-l
*
*
111
T
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INTRODUCTION
Recent public concern about the health
effects from exposure to radon has greatly
Increased the demand for companies qualified to
measure radon and radon decay products In
Indoor air. In response to States' requests
for assistance, the U.S. Environmental
Protection Agency's Office of Radiation
Programs has developed the National Radon
Measurement Proficiency (RMP) Program within
Its Radon Division. Under this program, any
company offering measurement services —
directly, or Indirectly through another company
— Is Invited to demonstrate its proficiency In
measuring radon gas and/or radon decay product
concentrations.
The program's Immediate obleetlve Is to
assist States and the public In selecting com-
panies that have demonstrated competence In
measuring Indoor radon «nd/or radon decay
products. This Is achieved by evaluating, on
an EPA scheduled basis, the proficiency of
companies' measurements and the quality of
their data management. Those companies that
demonstrate proficiency In each of these areas
are listed In this Proficiency Report. The
program's long-term objectives are to promote
standard measurement procedures among
measurement companies and to establish quality
assurance procedures for all measurement
companies.
The National RHP Program Is not designed
for accrediting measurement companies, nor does
It certify, recommend, or endorse participating
companies. The Inclusion of a company In this
report should not be Interpreted as a certifi-
cation or accreditation of that company. This
report is only a source of measurement compa-
nies that have demonstrated capabilities for
measuring radon and radon decay product
concentrations.
The testing periods are referred to as
test 'rounds'. A company enrolls Its
measurement methods (e.g.. activated charcoal
adsorption) for evaluation. A primary company
either owns analysis capabilities or makes all
measurements and analyses tilth Its own
Instrumentation and operators. This type of
company nay or may not offer measurement
services directly to the public. A secondary
company offers services ranging from detector
distribution to home Inspection and
consultation. It must use one of the primary
companies for Its detector analyses.
EPA Instructs the primary companies to
submit a specific number and type of detectors
(e.g.. five charcoal canisters) for exposure to
known levels of radon and/or radon decay
products. After exposure. EPA returns the
detectors to the company without revealing the
radon gas or radon decay product concentration.
The company analyzes the detectors and reports
Its measurements to EPA. EPA compares these
measurements with the known levels of exposure.
Only companies having net all the program
requirements for a method In the performance
test are listed In this Proficiency Report.
Table 1 lists. In alphabetical order, all those
companies offering measurement services In your
State.
SELECTION OF MEASUREMENT METHOD
Several different measurement methods nay
be used to determine the radon or radon decay
r
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product concentrations in houses. In practice.
the choice of a method Is often dictated simply
by avallablllty — If an adequate method Is
available, you use It. If alternative methods
are available, then the cost or the duration of
the measurement nay become the deciding factor.
EPA has developed measurement protocols
for eight different methods and believes that
any of then, when used In accordance with EPA
protocols, can produce valid results. This
does not mean that all measurements made ac-
cording to the suggested protocols Mill produce
results with Identical uncertainties. However.
It does mean that the listed methods are capa-
ble of producing adequate results for screening
or followup purposes.
Each method has Its own advantages and
disadvantages. Users must decide which method
Is best suited to their situations. The fol-
lowing sections describe the characteristics of
the eight methods, pointing out some of the
advantages and disadvantages of each one. This
summary Is not exhaustive, but Is Intended to
guide the user In making an Informed selection
of a measurement method.
Continuous Radon Monitoring (CR> and Continuous
Working-Level Monitoring fCH>
These measurement methods are similar
because they both 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
deployed In houses according to guidelines In
the EPA protocol, and then turned on or
progranned for the desired operating tine — a
minimum of six hours for screening and twenty-
four hours for followup measurements At the
end of the test, the monitor must be retrieved.
and the results oust be analyzed by a skilled
Instrument operator.
Advantages
• Relatively short measurement duration.
• Hourly results can track the variation
of concentrations In the house.
• Very precise (most models).
• Results are available on site (for CW).
Disadvantages
• Relatively expensive, cost nay range
from $100 to $300, depending on the
type of services provided.
• Requires a skilled Instrument operator.
• This, as does any short-term measure-
ment, requires careful control of
closed-house conditions twelve hours
before and during the test.
• Because of highly reactive nature of
radon decay products, working level
measurements are much more susceptible
to sampling error then radon gas
measurements.
Aloha-Track Detection (AT)
The alpha-track method measures radon. An
AT detector Is a small sheet of special plastic
material enclosed In a container with a filter
covered opening. The radon gas that enters the
container decays, emitting alpha particles.
These particles strike the plastic sheet
leaving tracks that can be chemically enhanced
and counted using a microscope or an automated
counting system.
The detectors are deployed In the hone
according to guidelines In the EPA protocol
They are left for periods of up to three months
-------
for screening and twelve months for followup
measurements. At the end of the desired test-
Ing period, they oust be returned to the dis-
tributor or analytical laboratory for process-
Ing and evaluation.
Advantages
• Relatively Ion-cost services; cost nay
range from $20 to $60.
• No special skills required for Baking
the oeasureoent.
• Can be distributed by mail.
• Completely passive, needs no external
power.
• Can measure the long-tern average con-
centrations over a twelve-month period.
which Is the optimal measure of long-
tern concentrations.
Disadvantages
• Relatively long neasurenent period
necessary; three months is the recoo-
nended minimum for currently available
detectors.
Activated Charcoal Adsorption (CO
The charcoal adsorption method measures
radon gas. The detectors for this nethod con-
sist of variously configured containers filled
with a measured amount of activated charcoal.
The container Is often perforated or screened
to keep the charcoal from falling out and sone
have a filter to keep out radon decay products.
All charcoal adsorbers are stored In airtight
containers when not being used for sampling.
Charcoal adsorbers can be received through
the nail from a distributor. They are deployed
In the hoote for up to seven days, according to
guidelines In the EPA protocols. At the end of
testing, an adsorber Is resealed and returned
to the distributor or analytical laboratory for
processing and evaluation.
Advantages
• Low cost for services; costs nay range
fron $10 to $25.
• Can be distributed by nail.
• No special skills needed for naklng the
neasurenent.
• Completely passive, needs no external
power.
• With proper analysis, can yield precise
results.
Disadvantages
• Sone charcoal adsorbers are nore sensi-
tive than others to temperature and
humidity.
• United to short-tern testing.
• Requires, as does any short-tern meas-
urement, careful control of closed-
house conditions twelve hours before
and during the test.
RPISU - Radon Progeny Integrating Sampling
Unit fRP)
The RPISU nethod measures radon decay
products. RP detectors have a flow-rate air
pump that pulls air continuously through a
detector assembly. Depending on the node), the
unit can be Installed and operated by
homeowners or skilled operators for three days
or longer according to guidelines In the EPA
protocol. At the end of that time, the
homeowner sends it to the distributor, or an
operator renoves the unit and returns It to the
analysis laboratory for processing and
evaluation.
Advantages
• Directly measures concentrations of
radon decay products.
-------
• Relatively short measurement period.
• The detector assembly and some entire
units can be sent by nail.
• There Is extensive experience In the
use of RPlSUs; therefore, measurement
errors are Hell established.
Disadvantages
• Relatively expensive; cost nay range
from S40 to $150. depending on type of
service provided.
• Some node Is nay be both heavy and
awkward to nove.
• May be United to locations with AC
power.
• Some units oust be Installed and picked
up by a skilled Instrument operator.
• Because of the highly reactive nature
of radon decay products, neasurenents
are nuch nore susceptible to sampling
error than radon gas measurements.
Grab Sampling - Radon (GfO and Radon Decay
Products (GW>
The grab sampling methods neasure concen-
trations of radon gas or radon decay product
concentrations. The radon grab sample Is
collected In a special flask holding 100 to
2.000 cubic centimeters of air. The radon
decay product grab sample Is collected by
drawing air through a filter upon which radon
decay products. If present In the air. are
collected. Both samples can be acquired
simultaneously with some detector systems. All
sampling should be done In accordance with
guidelines In the EPA protocol.
For results of the grab radon test, opera-
tors must return to their offices to analyze
the exposed detectors, and must delay the anal-
ysis for at least four hours after the sample
Is taken. For nost grab working-level (radon
decay product) tests, operators can perform the
analysis on location In an hour or less.
Advantages
• Results are quickly obtained.
• Equlpnent can be portable.
• Sone detector systems can sanple both
radon and radon decay products
simultaneously.
• Can acquire and evaluate several
samples per day.
• Conditions during the measurement are
known to the operator.
Disadvantages
• Relatively expensive; costs may range
from S80 to $300, depending on the type
of services offered.
• Very short measurement periods may not
be representative of the long-term
average concentrations.
• Requires a skilled operator.
• Requires, as does any short-tern
measurement, careful control of closed-
house conditions twelve hours before
and during the test.
• Because of the highly reactive nature
of radon decay products, working level
measurements are much nore susceptible
to sampling error than radon gas
measurements.
E-PERM
E-PERM (Electret Passive Environmental
Radon Monitor) Is an Integrating defector used
to measure radon gas. It Is a canister
containing a charged electret which reacts to
the radiation emitted from radon and radon
decay products.
E-PERMs can be received through the mail
and Installed in a home according to guidelines
r
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In the EPA protocol for two to seven days or
three to twelve months, respectively for short
or long-term E-PERMs. At the end of the
testing period, It Is reseated and returned to
the analytical laboratory for processing and
evaluation.
Advantages
The E-PERU Is a relatively Inexpensive
(cost lay range fron $8 - $25) snail
detector that produces a result that Is
a true Integrated average radon concen
tratlon.
Two types of E-PERMs are available,
allowing the method to be used for both
short-tern and long-tern neasurenents.
The laboratory analysis of E-PERMs Is
nondestructive, allowing results to be
verified If necessary.
Once enrolled, a company nust meet EPA's
minimum screening-measurement requirements for
each method. A company must neet all detector
and analysis result deadlines as listed on Its
program schedule. Applications, detectors, and
analysis reporting forms received after a
scheduled deadline will not be considered In
the performance evaluation process. A com-
pany's detector(s) must be successfully tested
every round to maintain its proficiency
listing.
Disadvantages
E-PERMs are sensitive to background
ganma radiation, necessitating a
background check and subtraction of an
Increment of voltage.
EPA does not have extensive experience
with this method.
• PROGRAM REQUIREMENTS
For each method, participants must send
with their applications a copy of the operating
Instructions they provide homeowners and/or
those used by an Instrument operator. These
Instructions must reflect the measurement
procedures found In the EPA documents, 'Interim
Indoor Radon and Radon Decay Product Measure-
ment Protocols' and "Interim Protocols for
Screening and Followup Radon and Radon Decay
Product Measurement*. They nust be accepted
by, and on file with. EPA by the deadline
specified on that round's schedule.
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EXPLANATION OF ABBREVIATIONS
Methods Units
AT - Alpha-Track Detection (pCI/L)
CC - Activated Charcoal Adsorption (pCI/L)
CR - Continuous Radon Monitoring (pCI/L)
CW - Continuous Working-Level
Monitoring (WL)
GR - Grab Radon Sampling (PCI/L)
GW - Grab norking-Level Sampling (HL)
RP - Radon Progeny Integrated
Sampllng/RPISU (WL)
EP - Electret-PERM (pCI/L)
Measurement Units
pCI/L - Plcocurles per liter, radon gas
measurement units.
WL - Work Ing-1 eve I. radon decay product
measurement units.
Others
DT - Detector(s) damaged or lost through no
fault of the participant.
AI - Underscored methods Indicate a primary
company capable of performing measurement
In house or making measurements using
operators employed by and Instruments
belonging to the company.
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TABLE 1
PROFICIEKT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
• Company Measurement Methods
A A A Environmental Engineering Co. AT.CC
1806 S. Bel lair* Street
Denver, CO BO222
(303) 753-1034
A A A Radon Testing Services, Inc. CC
1806 South Bellalre Street
Denver, CO 80222
(303) 763-1044
A 1 W Radon Specialists. Inc. CC
19 Beechweed Road
Hudson, NH O3O61
(6O3) 883-3883, (BOO) 727-RADO
A Black Cross Sanitation Company AT.CC
1024 Cottman Avenue
Philadelphia, PA 19111
(216) 342-6100
A. Arthur Llpshutz Associate* CC
766O South Tamiaml Trail 9
Sarasota, FL 34231
(813) 923-7300
A. S. McCreath • Sons, Inc. CC
P. 0. Bon 1463
Harrtaburg, PA 17106-1463
(717) 238-9331
AAA Radon Services CC
P. 0. Box F
Hetlertown, PA 18066
(216) 868-6026
Company
AAAirscan Engineering Corp.
8 Eric Drive
Cranby, CT O6O36
(203) 663-6639 (203) 663-4787
ABE Radiation Measurements Lab
P.O. Box 214
Lenhartsville, PA 19634
(216) 766-4163
AIDCO Maine Corp
Grassy Pond House
Rindge, Ml O3461
(6O3) 899-6166
ALLSAFE ENVIRONMENTAL CORPORATION
P.O. Box 89
Bayville, NJ O8721
(201) 269-6060 (800) 7S2-CO9
ALRAM
Abacus Labs Radon Assessment A Hit.
P. 0. Box 6490
Portsmouth. NH O3801
(603) 433-3332 (BOO) 228-3332
ARIX Corporation (CO-Crand June.)
Sciences Division
76O Horizon Drive
Grand Junction, CO 816OB
(303) 242-6203 (216) 327-1140
ARIX Corporation, Inc. (PA)
1200 E. High St.
Pottstom, PA 19464
(216) 327-114O
Measurement Methods
AT.CC
AT.CC.CC
CC
CC
CC
AT.CC.CR
CC,Ot
• More detailed Information on the measurement companies' services and past performances is available upon request from your
State Radiation Representative's Office.
| Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods Indicate a primary company capable of performing measurement analyses in-house or making measurements
using operators employed by and instruments belonging to the company.
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TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
• Company
Aadvanced A»lr Aanalysis
2670 Bill Ings lay Road
Columbus, OH 43235
(614) 792-3400
Academy of IRM, Inc.
The Friary, Winchester-on-Severn
1600 Winchester Road
Annapolis, MD 21401
(301) 767-7887
Advanced Home Inspection • Testing
23 Magna Vista Circle
Tewksbury, MA 01876
(617) 8S1-E866
Advanced Rsdistion Monitoring Serv.
2219 Prosperity
Portage, MI 49081
(616) 323-9483
Air Cheh, Inc.
Box 2OOO
Arden, NC 287O4
(7O4) 684-C693
Air Pollution Reg. Serv., Inc.
164O Powers Ferry Rd.
Bldg 17 Suite 210
Marietta, GA 30067
(404) 984-1919
Air Sciences, Inc/Overraan Assoc.
P.O. Box 32O
Crystal City, MO 63O19
(314) 368-4011
Measurement Methods
CR
CC
CC
CC.CC
CC
AT,CC
CC
• Company
Air-N-Sol Corporation
P. 0. Box 437
Frenchtown, NJ O8826
(201) 996-2O28
Alabama Testing Laboratory
P. 0. Box 2337
Cadsden, AL 369O3
(206) 647-6311
Allstate Radon Testing Service
2231 Pinecliff Drive
Atlanta, GA 3O346
(4O4) 938-2238
Alpha Concepts, Inc.
P. 0. Box 119
Hopatcong, NJ O7843
(2O1) 77O-3O46
AIpha ControI, Inc.
6716 Lowell Ave., Suit* 3
McLean, VA 221O1
(703) 781-1408
Alpha Detectors
1O40 Serpentine Way
Sandy, UT B407O
(801) 672-4869
Alpha Energy Laboratories, Inc.
PO Box 816069
Dallas, TX 76381
(817) 792-3434
Measurement Methods
CW.GR.GW
CC
CC
AT.CC.CR
AT.CC.EP.CR
CC
CC
• More detailed Information on the measurement companies' services and past performances is available upon request from your
State Radiation Representative's Office.
f Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods Indicate a primary company capable of performing measurement analyses in-house or making measurements
using operators employed by and instruments belonging to the company.
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TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company
Alpha Radon Environmental T«*tlng
Govarnmant Canter
P. 0. Box 737
Portland, ME O41O4
(800) 338-2999 (207)773-8004
Alpha Radon Tasting Inc.
1916 Kyl« PI.
CoIdan Valley, UN 66422
(612) 629-1949
Alpha Services
Air A Water Radon Taatlng
296 Crindie Brook Road
South Glaatonbury, CT 06073
(203) 669-8099
Alpha Spectra, Inc
P. 0. BOM 6772
21O Clayton Street
Denver, CO 80206
(3O3) 377-2118
Alphatech, Inc.
P.O. Box 264
Haverford, PA 19041-0264
(216) 626-1490 (216) 626-6966
American Radon Consultants Inc.
2616 Kemper. Apt. 103
Shaker Heights, ON 44120
(216)791-1367
American Radon Corporation
8300 North Hsyden Rd., Suite 100
Scottsdale, AZ 86268
(602) 967-8029
Measurement Methods
AT,CC,CR,CW
CC
CC
CC
CC
CC
• Company
Measurement Methods
*T,CC,EP
American Radon Services, Ltd.
3O3 I.S.I.S. Center
Iowa State University
Ames, IA 60011-2130
(616) 296-9926
American Radon Testing Laba. Inc.
Executive Club Wast, Suite 3O7
21360 Center Ridge Rd.
Rocky River, OH 44116
(216) 331-O200
Ames Assoc. Inc.
6936 Wisconsin Ave., Suite 300
Chevy Chase, MD 20816
(301) 666-6222
Annapolis Property Services
P.O. Box 36O4
Anapolis, MD 21403
(301) 721-4419
Appalachian Envir. Testing Inc
1O6 South Union St. Suite 328
Danville, VA 24541
(804) 792-1300
Applied Analytical Technologies Inc
P. 0. Box 668
Narragansett, RI 02882
(4O1) 782-8188
Applied Energy Company
3316 Augusta Avenue
Omaha, HE 68144
(402) 334-6881
CC
CC
CC
AT.CC
CC
CC
• More detailed Information on the measurement companies' services and past performances Is available upon request from your
State Radiation Representative's Office.
f Non-comrerclal laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses in-house or making measurements
using operators employed by and instruments belonging to the company.
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TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company
Applied Health Physic* Inc.
2986 Industrial Blvd. Box 197
Bethel Park, PA 161O2
(412) 663-2242
Applied Radon, Inc.
62206 Warehime Rd.
Cumber Iend, OH 43732-8804
(800) 638-2078
Applied Technical Services Inc
119O Atlanta Industrial Drive
Marietta, GA 30066
(404) 432-OSO8 (800) 461-3406
Aquatek Lab
Div of Graham-Massey Analytical Lab
2212 Main Street
Bridgeport, CT 06606
(203) 676-O1O4
Asbestos and Radon Consultants
Quali-Pro-Tech Svcs. Inc.
2O4 Devon Drive
Extern, PA 19341
(216) 363-7268
Assay Services
P. 0. Box 1266
Frlendswood, TX 77648
(713) 482-6689
Atlantic Environmental Laboratory
16 Elm Street
Wast Haven, CT 06616
(203) 932-6808 "
Measurement Methods
AT.CC.EP
AT.CC
AT,CC,EP
CC
CC
CC
CC
• Company
Atometrlcs
911 Veterans Blvd.
Suit* 202
Metarie, LA 70006
(KM) 837-1367
Barringer Laboratories, Inc.
1600O W. 6th Ave. Suite 30O
Golden, CO 8O4O1
(303) 277-1687
Basement De-Watering Systems
Safe-Aire, Inc.
162 East Chestnut Street
Canton, IL 6152O
(800) 331-2943 (3O9) 647-O331
Battelle
EOS King Avenue
Columbus, OH 43201
(614) 879-6163
Biomenitor ing Services Laboratory
Technical Resources, Inc.
3202 Monroe Street
Rockvllle, MD 20852
(301) 77O-O81O
Bionomic Industries Inc.
P.O. Box 42
479 Route 17 North
Mahwah, NJ 07430
(201) 629-1O94 (800) 338-3210
| Boston Univ. Medical Center
Radon Testing Service
80 East Concord St.
Boston. MA 02118
(817) 638-7OS2
Measurement Methods
AT.CC
AT.CC
AT,CC,CR,EP
AT,CC,CR
CC
AT.CC,CW
CC
• More detailed information on the measurement companies' services snd past performances is available upon request from your
State Radiation Representative's Office.
f Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses in-house or making measurements
using operators employed by and instruments belonging to the company.
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TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company
Boxford Radon Lab (B.R.L.)
62 Wi Idmeadow Rd
Boxford, MA O1921
(BOB) 887-9641
Bryant and Bryant Service Company
992 1/2 Davidson Drive
Nashville, TN 37205
(616) 362-2670
Burns and Associates
266 Kearsarge Way
Portsmouth, NH O3801
(603) 431-34CO (6O3) 964-8481
| COM Federal Programs Corporation
13135 Lea Jackson Memorial Highway
Suite 200
Fairfax, VA 22O33
(703) 968-O900
CDS Technologies, Inc.
6O5O TlIghman Street
A Men town, PA 181O4
(216) 398-7125
CMT Inc.
2813 Rio Vista
Emporia, KS 66801
(316) 342-2760
Camp Dresser * McKee Inc.
Rarltan Plaza 1, Rarltan Ctr.
Edison, NJ 08818
(201) 226-7000 *
Measurement Methods
CC
CC
Company
Measurement Methods
AT.CC.EP
AT.CC.CR.CR
AT.CC
CC
CC
Campten Development Corp.
P. 0. Box 364
Campton, NH O3223
(603) 728-3030
Camreden Associates
RD f4 Box 62
Rome, NY 13440
(316) 866-4269
Canberra Industries Inc.
One State Street
Heriden, CT 0646O
(203) 238-2361
CancerScreen, Inc.
1120 First Colonial Rd. |1O3
Virginia Beach, VA 23464
(8O4) 481-4742
Cavin Analytical Consultants
2166-K Wast Park Court
Stone Mountain, GA 30087
(800) 633-1224, (404) 498-8295
Centarua Corporation
P. 0. Box 613
Glasgow, KY 42141
(6O2) 661-2396
Certus Laboratories
P. 0. Box 106633
Atlanta, GA 3O348
(404) 762-5411
CC
AT.CC
CC
CC
CC
CC
• More detailed Information on the measurement companies' services and past performances Is available upon request from your
State Radiation Representative's Office.
| Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods Indicate a primary company capable of performing measurement analyses In-house or making measurements
using operators employed by and instruments belonging to the company.
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TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company
Chem-Safe Laboratories Inc.
PO Box 0646
Pullman, WA 99163-0646
(609) 334-O922, (800) 727-9100
Clean Air Engineering, Inc.
2O7 North Woodwork Lane
Palatine, IL 60067
(312) 991-330O
Columbia Radiological Testing Lab
4054 Victoria Court
Columbia, MO 662O1
(314) 442-608O
Commonwealth Eng. A Technology
3113 North Front Street
Harrisburg, PA 1711O
(717) 232-2288
Commonwealth Radon Specialists
22O4 Grundy Road
Woodbrldge, VA 22191
(7O3) 494-6241
Community Radon Testing
Dlv. of Santiago Enterprises
1061 NW 96th Terrace
Pembroke Pines, FL 33O24
(7O3) 451-8164 (800) 461-8164
Comprehensive Radon Services Inc.
P. 0. Box 648
Manchester, NH 03106
(603) 644-7301 (6O3) 6&-1891
Uassuramant Methods
CC
CC
AT.CC.CC
CC
CC
AT.CC
CC.CR.GR
• Company
Con-Test, Inc.
126 Shaker Road
East Longmeadow, MA O1O28
(413) 625-1198
Connecticut Environmental Testing
431 Post Rd.. East. Suite 681
Wastport, CT O688O
(203) 226-787O
DMA Analysis Group
620 Chestnut Street
Efimaus, PA 18049
(216) 966-2914
Dames A Moore
71O1 Wisconsin, Ave., Suite TOO
Bethesda, MD 2O814
(3O1) 662-2215
David W. Jungblut. Geologist
Rt. 12, Box 168
Baptistown, NJ O88O3
(201) 996-3688
ECI
2966 Valmont, Suito 300
Boulder, CO 803O1
(303) 442-8996
ECftC Ortec
100 Midland Road
Oak Ridge, TN 37830
(615) 483-2269
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State Radiation Representative's Office.
| Non-commercial laboratory for research purposes or State agencies' assistance only.
Not*: Underscored methods indicate a primary company capable of performing measurement analyses in-house or making measurements
using operators employed by and instruments belonging to the company.
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TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company
Measurement Method*
• Company
Measurement Methods
EKS RadTech
1000 Herald Square
Aston, PA 19014
(800) R U ALERT
EMPAC, Inc.
26 Science Perk
New Haven, CT O8611
(203) 78S-642O
ENV Services, Inc.
216 Goddard Blvd., Suit* 117
King of Prussia. PA 1940S
(216) 337-8222 (800) 34S-6O94
Eastern Analytical Services, Inc.
4 Westchester Plaza
Elmsford, NY 10623-1601
(914) E92-838O (914) 939-6992
Eberline Instrument Corporation
P. 0. Box 2108
Santa re. Ml 87E04-2108
(606) 471-3232
Ecodev
1 Aaron Rd.
Lexington, MA O2173
(617) 862-344O
Edinboro Scientific Company
P. 0. Box 689
Edinboro. PA 16412
(814) 734-4334
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Electro-Analytical Laboratories
7118 Industrie! Park Blvd.
Mentor, OH 44060
(216) 961-3614
EnRad, Inc./Had. T. A Eng. Inc
18706 B. North Frederick Road
Gaithersburg, MD 20879
(301) 948-8040
Entropy Environmentalists, Inc.
P. 0. Box 12291
Research Triangle Park, NC 27709
(919) 781-3E6O
Envlr. Detection Assoc. Inc.
P. 0. Bon 1006
Pisgah Forest, NC 28768
(704) 877-4300
Envir. Health Consultant Inc.
1SO5 N. Prospect
Champaign, IL 61820
(217) 366-4797
Envlr. Radiation Services, Inc
306 W. Magnolia, Suite 373
FT. Collins, CO 80621
(303) 226-6630 (303) 491-6664
Envlro Sciences, Inc.
1548 Valwood Parkway
Suite 118
Carroll ton, TX 76008
(214) 406-8100 (817) 792-3434
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| Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate • primary company capable of performing measurement analyses in-house or making measurements
using operators employed by and instruments belonging to the company.
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TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company
Envire Technology Corporation
946 Spring Rd.
Pel ham Manor, NY 10603
(left blank)
Envlrohazards Management, Inc.
P. 0. Box 1064
So. Orange, NJ 07O79
(201) 761-7226
Environ. Detection Associate*
P. 0. Box 1006
Pisgah Forest, NC 28768-1006
(704) 877-4300
Environ. Testing Assoe. (Altoona)
240 Harvest Lane
Altoona, WI 6472O
(715) 832-8E8S
Environ. Testing Assoe. (Belolt)
2201 East Ridge Road
Beloit, « E3E11
(60S) 366-2774
Environ. Testing Assoe. (Madison)
9 White Pine Trail
Madison, WI 63717
(608) 833-4073
Environmental Audit, Inc.
1901 W. 47th Place, Suit* 310
Westwood, KS 66206
(913) 384-OOOO
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Environmental Chemistry
1233 Ogden Street, Suite 604
Denver, Colorado 80218
(303) 831-O437
Environmental Consulting Lab.
61 College St.
New Haven, CT 08610
(203) 776-9624 (2O3) 246-7039
Environmental Detection Management
P. 0. Box 12316
Research Triangle Park, NC 27709
(919) 469-8006
Environmental Enterprises, Inc.
P. 0. Box 16847
Atlanta, GA 3O321
(404) 766-6561
Environmental Field Services, Inc.
63 Elm Street
Topsham, ME O40B6
(2O7) 726-4112
Environmental Health ft Safety
Suite 211, PO Box 26OO2
Brandonton, FL 342O6
(813) 765-7660, (813) 794-OB81
Environmental Health Inspections
Cross River Mill Prof. Plaia
Suite 6E, 12CO US Highway 9
Lakewood, NJ O87O1
(201) 905-8888
Measurement Methods
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| Non-comnercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses in-house or making measurements
using operators employed by and instruments belonging to the company.
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TABLE 1
PROFICIENT ICASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company
Uaasui
it Method*
Company
Environmental Quality Associate*
308 Harrison St.
Fulton, NY 13069
(316) 693-2065
Environmental Radon Measurement*
49 N. Orange Ave.
Orlando, FL 328O1
(407) 648-1989
Environmental Science A Engin., Ine
P.O. Box 1703
Gainesville, FL 32802-1703
(904) 332-3318
Environmental Science Lab, Inc.
26 Pearl St.
Suite 11O
Mansfield, MA O2O91
(BOO) 343-0707 (608) 968-4344
Environmental Science Services
235 Promenade Street
Providence, RI 02908
(4O1) 421-O398
Environmental Services ft Technology
22 Oakland Avenue
Atlantic Highland*, NJ O7718
(201) 291-6626
Environmental Sys. Service Ltd
P. 0. Box 220
College Park, M> 20740
(301) 779-0606
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Environmental Systems Service
P. 0. Box 612
Culpeper, VA 227O1
(7O3) 826-6660
Environmental Testing Associates
6021 Sandy Springs Cir., Suite 206
Atlanta, CA 30328
(4O4) 266-3884
Enviroserv, Inc-Radon Detect, of NJ
15 Buckley Hill Road
Uorristown, NJ O796O
(201) 285-1066
Envirotest
P.O. Box 223
North Ridgeville, OH 44O39-O223
(216) 327-9432
Federal NucIide Monitors
2O23 Park Road, N.W.
Washington, DC 20010
(2O2) 266-O429
Federal Radon Incorporated - MO
206 E. 3rd St.
Cameron, MO 64429
(816) 632-1318
Federal Radon Incorporated - NJ
93 Parma lee Avenue
Hwthorne, NJ O7B06
(2O1) 427-9391
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State Radiation Representative's Office.
| Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods Indicate a primary company capable of performing measurement analyses In-house or making measurements
using operators employed by and instruments belonging to the company.
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TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
• Company
Measurement Method*
Femto Tech-Labs
P.O. Box 8267
Carlisle, OH 46006
(613) 746-4427
CEO-Environmental Services, Inc.
13O West Wieuca Road
Suite 108
Atlanta, GA 30342
(404) 266-6437
CEOMET Technologies, Inc.
2O2S1 Century Boulevard
Germantown, M> 20874
(301) 428-9898
Gallipot, Inc.
2401 PI lot Knob Road
St. Paul, MN 6612O
(612) 681-9517 (800) 423-6967
Garden State Bldg • Home Ins. Svc.
476 Valley Rd.
West Orange, NJ 07062
(2O1) 678-3333
General Health Physics Inc.
7217 Lockport PI
Lorton, VA 22O79
(7O3) 66O-7G26
General Physics Corporation
6700 Alexander Bell Or.
Columbia, M> 21O46
(301) 290-2300 (301) 290*2614
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Georgia Radon Detection Co.
3400 Elm Creek Drive
Marietta, GA 30064-1132
(404) 429-O384
Global Radon Testing Service
PO Box 1328
Cocoa Beach, FL 32932
(407) 784-1346, (800) 33O-7227
Granite State Radon Services
64A Con leya Grove Rd.
Atkinson, NH O3811
(603) 893-3066
Great Plains Nuclear Services, Inc.
46O2 Leavenworth Street
Omaha, NE 68106
(402) 663-3S81
Great Tracers
3 Schoenbeck Road
Prospect Heights, IL 60070-1436
(312) 266-O436
Health Hazards Detection
Rt. 3, Box 373
Albany, KY 426O2
(606) 387-7021
Health Physics Associates, Inc.
RD1 Box 796
Lenhartsvllle, PA 19634
(216) 766-4163
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State Radiation Representative's Office.
| Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses in-house or making measurements
using operators employed by and instruments belonging to the company.
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TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
• Company
Health Science Services Corporation
P. 0. Box 102
Marlboro, NJ O7746
(201) 636-2066
Health and Safety Asaoelataa
36 Crove Street
Medford, MA O2166
(617) 488-7081
Helix Environmental, Inc.
416 Triangle Avenue
Dayton, OH 46419
(613) 298-299O
Heritage Radon Service*, Inc.
6988 Birchwood Road
Harriaburg, PA 17112
(717) 699-6060
Home Inspection Service, Inc.
1916 Southland Avenue
Highland Park, IL 60036
(312) 831-4646 (312) 432-8861
Horn Radon Detection Co.
6824 Elmonte
Fainray, KS 66206
(913) 262-1666
Home Radon Detection Inc.
33488 Lone Rock
Wlldwood. IL 60030
(312) 223-6617 *
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Home Radon Surveya
42O9 01 ley Lane
Fairfax, VA 22O32
(703) 323-7236
Home Sentry, Inc.
P. 0. Box 6B6
Midland Park, NJ O7432
(201) 662-2497
Home Testing Labs Incorporated
299 Wast Fort Lee Road
Bogota, NJ 076O3
(2O1) 343-1199,(800) 221-1734
Home Testing Service
1 Aaron Road
Lexington, MA 02173
(817) 882-3440
Home-Tech Engineering, Inc.
658 Ridgewood Ave
Glen Ridge, NJ 07028
(2O1) 744-6674
Horizon Engr. 1 Envlr. Services Inc
699 Waldron Road
LaVergne, TN 37086
(616) 793-7993
House Analysis A Associates
747 Hallowell Drive
Huntingdon Valley. PA 19006
(216) 947-1169 (216) 947-9209
Measurement Methods
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ft Non-commercial laboratory for research purposes or State agencies' essistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses In-house or making measurements
using operators employed by end instruments belonging to the company.
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TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
• Company
House Check, Inc. -ID
2026 Maryland Av».
Baltimore, MD 21218
(703) 56O-7626, (301)727-6663
House-Cheek, Inc.
P. 0. Box 731
Valley Forge, PA 19482
(216) 933-4431
Household Laboratories, Inc.
P. 0. Box 2247
Glenview, IL 60026
(312) 724-633O
Hudson Valley Radon Testing Corp.
P.O. Box 790
Poughkeepsie, NY 126O1
(914) 431-4424-(914) 486-6661
Inflltac, Falls Church, VA
P.O. Box 1633
Falls Church, VA 22O41
(703) B2O-7696
Inspex of Boulder, Inc.
2956 Valmont Street, Suite 300
Boulder, CO 8O3O1
(303) 442-8996
International Radon, Inc.
2417 Regency Road
Lexington, KY 4O6O3
(606)278-0104; (800)637-6066
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J H A Associates, Inc.
2624 E. 71st
Tulsa, OX 74136
(918) 496-9264
JRM Associates
Box 6O2 North Barnstead Road
Center Barnstead, NH O3226
(603) 776-«046
JRW Industries, Inc.
2312 North Second Street
Harrisburg, PA 1711O
(717) 236-1418
John Prikkel and Associates
P. 0. Box 14146
Dayton, OH 45414
(613) 222-7749 (513) 278-3176
K • J Solar Service
1142 Fillmore St.
Denver, CO 80206
(3O3) 393-8372
KBC Technology
Box 170
R. R. 2
Raymond, IL 6266O
(217) 229-4437
KSE, Inc.
P. 0. Box 368
Airfierst, MA O1004
(413) 649-6606
Measurement Methods
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State Radiation Representative's Office.
| Non-commrcial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses in-house or making measurements
using operators employed by and instruments belonging to the company.
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TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company
Key Technology, Inc.
P.O. Box 662
Jonestown, PA 17038
(717) 274-831O
Laptoff Associates
P.O. Box 4160
Woodbridge, VA 22194
(703) 491-6700
Lifeline Environmental Testing
2522 Stuart Avenue
Richmond, VA 2322O
(804) 358-4192
MBI - Radon Technology
P. 0. Box 21-157
St. Paul, MN 65121
(612) 454-4534
| MIT/MIT Radon Project
BuiIding 26, Rm | 421
Cambridge, MA 02139
(617) 263-4151
| Maine Public Health Laboratory
Statehouse Station |12
Augusta, 1C 04333
(207) 289-2727
Maryland Radon Laboratory, Inc.
P.O. Box 2678
Columbia, MD 21O46
(301) 997-2366, 997-7428
Measurement Methods
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McCrone Environmental Services, Inc
1412 Oakbrook Dr., Suit* 100
Norcross, CA 30093
(404) 368-9600
Medrad, Inc.
Kappa Manor II
271 Kappa Drive
Pittsburgh, PA 16238-2870
(412) 767-4600
Menke Consulting, Inc.
6O7O Routzong Road
Greenville, OH 46331
(513) 447-4225
Metropolitan Radon Ueas. Serv.
1665 Cliff Road, Suite 3-1O1
Eagan, MM 65122
(612) 681-1829
Metropolitan Radon Service
4011 Nawbys Bridge Road
Chesterfield, VA 23832
(804) 746-47O2
Microbac Environmental Laboratory
P.O. Box 49
Fayetteville, NC 28303
(919) 864-192O
Microbac Labs, Erie Testing Lab Dlv
2411 W. 26th St.
Erie, PA 16506
(814) 833-4790
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State Radiation Representative's Office.
I Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses In-house or making measurements
using operators employed by and instruments belonging to the company.
-------
TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company
Mlcrobae Labs, Hanover, PA
701 3rd. Street
Hanover, PA 17331
Net Installed Yet
yicrobac Labs, Johnstown, PA
Strand Testing 01v.
110 Kinzey St.
Johnstown, PA 16904
(814) 266-9648
Uicrobae Labs, KY
Kentucky Testing Laboratory
1121 W. Broadway
Louisville. KY 4O2O3
(602) 683-6256 (6O2) 689-6019
Uicrobae Labs, MA Testing Division
2O2 Bussey Street
Oedham, MA O2O26
(617) 326-7117
Microbac Labs, New Castle, PA
R. D. |3. Pulaski Road
New Castle, PA 16106
(412) 654-4212
Uierobac Labs, Pittsburgh, PA
4680 McKnight Road
Pittsburgh, PA 15237
(412) 931-6861
Uicrobae Labs, Schiller Dlv.
449 Rochester Road
Pittsburgh, PA 15237-1733
(412) 369-4830
Measurement Methods
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Microbac Labs, Seaway Div
642-644 Conkey Street
Hamnond, IN 46324
(219) 932-177O
Microbac Mid-Atlantic, Inc.
6808 Jefferson Avenue
Newport News, VA 23606
(804) 245-8613
Mid America Radon Testing Inc.
P.O. Box 26643
Overland Park, KS 66225
(913) 469-1997
Uidwest Radon Analysis Incorporated
P. 0. Box 33O93
Cleveland, OH 44133
(216) 582-4848
Mix lee Environmental Research Corp.
356f Fairfield Woods Road
Fairfield, CT O6430
(203) 371-7102
NAHB National Research Center
400 Prince Georges Center Boulevard
Upper Marlboro, MD 20772
(301) 249-40GO
NATLSCO
Route 22 A Kemper Drive
Long Grove, IL 60049
(312) 64O-2488
Measurement Methods
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State Radiation Representative's Office.
| Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses In-house or making measurements
using operators employed by and Instruments belonging to the company.
-------
TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company
Measurement Method*
MX. Organ!Milan, Inc., The
P. 0. Box 791
Peekskill, NY 10666
(914) 737-7200
NOOAR, Inc.
Rt. 5, Bon 333R
Athens, AL 36611
(203) 729-1900
Nation*I Radon Laboratories
Div. of Analytical Services Corp.
P. 0. Box 10681
Arlington, VA 22210-1681
(703) 625-6672
National Radon Laboratories, Inc.
1000 Johnson Ferry Road
Suite B 146
Marietta, GA 30068
(404) 666-3886
National Radon Testing Center, Inc.
18 Marshall Street
Norm Ik, CT O6864
(203) 863-4777 (2O3) 863-1219
Nationwide Testing
RD. 1 Box 266 B
Annandale. NJ 08801
(201) 736-2770
Natkln Service Company
2241 W. Altorfer
Peorla, IL 61616
(309) 691-9206 (BOO) 642-8391
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Natural Resources Laboratory, Inc.
1100 Simms Street
Golden, CO 80401
(303) 233-8166
Naring, Inc.
P. 0. Box 2O9
Ridgefleld, CT O6877
(2O3) 431-3697
New England Radon Services
95 Vauxhall Street
New London, CT O6320
(203) 442-6675
New England Radon, LTD.
373 Main St.
Salem, Ml 03079
(6O3) 893-426O, (800) 637-2366
Niton Corporation
P. 0. Box 9163
Lexington, MA 02173
(617) 229-4929
Northeast Radon Testing Svc., Inc.
P. 0. Box 94
Stormville, NY 12682
(914) 221-0236
Northeastern PA Envlr. Council
P. 0. Box 3113
Scranton, PA 18606
(717) 9B1-116O
Measurement Methods
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State Radiation Representative's Office.
| Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses In-house or making measurements
using operators employed by and Instruments belonging to the company.
-------
TABLE 1
PROFICIENT (MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company
to
IS)
Northern Environmental Lab., Inc.
RR 1, Don 1810
Dixmont, ME 04932-9740
(800)636-3411
Northern Neck Radon Service
Route 1, Box 2E9-E
Hague, VA 22469
(804) 472-4262
Norton Conservation Co. Inc.
PO Box 683
Hackettstown, NJ O784O
(201) 852-6046
Nuclear Sources • Services Inc.
P. 0. Bon 34O42
Houston, TX 77234
(713) 641-O391
Nuclear Technology, Inc.
2O H. So. State Street
Westerville, OH 43081
(614) 899-2436
| Nucleus, Inc.
P. 0. Box 2661
Oak Ridge. TN 37831-2661
(616) 482-4041
0. K. Rent* Corp.
174 Flock Rd.
Mercery i Me, NJ O8619
(609) 688-9627 *
Measurement Methods
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Orkin Environmental Services
P. 0. Box 647
Atlanta, GA 30301
(404) 888-2801
f Packard Instrument Co.
2200 WarrenviIle Road
Downers Grove, IL 60616
(312) 969-6000 (800) 323-1891
Palmer Technology
P.O. Box 1072
Glen Burnie, M> 21061
(301) 766-3176
Petroleum Analytical Lab. Inc.
Post Office Drawer AK
Eaton Park, FL 3384O
(813) 666-0028
Phoenix Labs
PO Box 472
Hoi I is, NH 03049
(603) 466-7888
Potomac Air Testing
4102 Rosemary St.
Chevy Chase, MD 2O816
(3O1) 667-4391
Princeton Testing Laboratory
Princeton Service Center
3490 U.S. Route 1
Princeton, NJ O864O
(609) 462-9O6O
Meosurement Methods
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State Radiation Representative's Office.
ff Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods Indicate a primary company capable of performing measurement snslyses in-house or making measurements
using operators employed by end instruments belonging to the company.
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TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company
Measurement Methods
Company
Measurement Methods
Pro Chek, Inc.
Box 2000
Arden, NC 287O4
(800) 622-2436
Pylon Electronic Development
147 Colonnade Rd.
Nepean, Ont., Canada K2E7L9
(613) 226-7920
Pyramid Environmental Systems, Inc.
P. 0. Bon 648
Sparta, NJ 07871
(201) 729-9376, 679-3089
Quantum Information Ltd.
P.O. Box 467
Westtown, PA 19395
(216) 431-9577
R. F. Simon Co. Inc.
RD 2, Box 481
Barto, PA 19504
(215) 764-6466 (216) 764-9705
R. K. Occupational • Environmental
Analysis, Inc.
616 Warren St.
Alpha, NJ 08866
(216) 26O-6948
R.A.D. Service • Instruments Ltd.
6O Silver Star Blvd., Unit 208
Scarborough, Ontario MIV3L3
Canada ^
(416) 298-9200
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RAD Environmental Services, Inc.
2306 Rodeo Dr.
Durham, NC 277O4
(919) 688-9226
RADON SURVEY SYSTEMS, Inc.
24200 Chagrin Blvd., Suite 264
Cleveland, OH 44122
(216) 464-7997, 464-2002
RAF Engineering
Hillside Road
Rockaway, NJ 07866
(201) 983-9041
RISE
260 Broadway
Providence, RI 02903
(401) 272-1040
RPI Radon Measurement Services, PA
P.O. Box 347
Hershey, PA 17033-0357
(717) 533-8100, 633-6192
Ra-Tek, Dlv. of Shamrock Lawn Care
P. 0. Box 498
800 East Main Street
Marshall, MN 66268
(607) 632-7313 (6O7) 632-6881
Rad-Elee, Inc.
PO Box 1126
6330 Spectrum Dr.
Frederick, ID 21701
(301) 694-0011
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State Radiation Representative's Office.
| Non-comnerciel laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods Indicate a primary company capable) of performing measurement analyses In-house or making measurements
using operators employed by and instruments belonging to the company.
-------
TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
• Company
Measurement Methods
• Company
Measurement Methods
Radex, Inc.
1382 Prince Ave.
Suit* A
Athena, GA 30606
(4O4) 548-696O
Radiation Consultants, Inc.
P. 0. Box 34012
Houston, TX 77234
(713) 476-O072
Radiation Data - CT
Oiv. of Princeton Geophysical Serv.
37 Castleman Drive
Southington, CT 06489
(203) 621-O678
Radiation Data - NJ
Div. of Princeton Geophysical Serv.
116 Wall Street
Princeton, NJ 0654O
(609) 921-7061
Radiation Protection Services
P. 0. Box 2395
Darien, CT O882O-1296
(2O3) 324-7967, (201) 39O-736O
Radiation Safety Engineering
6105 South Ash, Suite 1
Tempo, AZ 86283
(602) 897-9469
Radiation Safety Services, Inc.
1664 Ashland Avenue
Evanston, IL 6O2O1-4O70
(312) 466-1999 "
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Radiation Service Organization, Inc
P.O. Box 1626
Laurel, M> 2O7O7-O963
(3O1) 953-2482, 792-7444
Radiological Health Sciences, Inc.
P.O. Box 4790
Ft. Walton Beach, FL 32549
(9O4) 863-1191
Radon A Water Testing Service
10806 Lafayette-P.C. Road
Plain City, OH 43064
(614) 873-8821
Radon / Soils, Water Testing Lab
7080 Price-Milliard Road
Plain City, OH 43O64
(614) 873-8821
Radon Alert Detection Center
P. 0. Box 323
Flourtown, PA 19031
(800) 346-6348 (216) 247-9197
Radon Analysis A Detection of N.E.
Ill Jefferson St.
Laconia, NH O3246
(603) 628-6772
Radon Analysis Incorporated (NJ)
7 Chamberlain Road
Flemington, NJ O8822
(201) 788-0661
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| Non-commercial laboratory for research purposes or State agencies' ssslstance only.
Note: Underscored methods Indicate a primary company capable of performing measurement analyses in-house or making measurements
using operators employed by and Instruments belonging to the company.
-------
TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
• Company
Measurement Methods
e Company
Radon Analytical Labs, Inc. ££,§£
8936 North Meridian St.
Suite 110
Indianapolis, IN 46260
(317) 843-O788
Radon Awareness A Detection CC
1408 S. Rock Hill Rd.
St. Louis, MO 63119
(314) 961-0400
Radon Check (NC) CC
Box 7882
Greensboro, NC 27417
(919) 866-1312
Radon Check of Virginia CC
3816 Carolyn Ave.
Fairfax, VA 22031
(703) 386-6406
Radon Check-Div of Horizon Sys CC
P. 0. Box 721
Harvard, MA O1461
(617) 466-8811
Radon Consultants, Inc., VA AT,CC
4O12 N. 36th Street
Arlington, VA 22207
(703) 622-6669 (301) 736-7O40
Radon Consulting A Testing Service CC
7449 Hiway 44. Box |9
Crystal River, FL 32629
(904) 663-2141 (904) 663-1771
Radon Control Professions Is Inc.
1192O Fieldthorn Court
Reston, VA 22O94
(703) 471-9469
Redon Control Professionals, Inc.
1192O Fieldthorn Court
Reston, VA 22O94
(7O3) 471-9469
Radon Detection A Consulting
P. 0. Box 1488
Lawrence, KS 66O44
(913) 843-7377
Radon Detection Devices
6 Lauriann Ct.
Parkton, MD 21120
(301) 329-6306
Radon Detection Services (GA)
4O3 W. Ponce de Leon Ave.
P.O. Box 1826
Decatur, GA 30031
(404) 377-2366
Radon Detection Services (VT)
P. 0. Box 434
29 Pleasamt Hgts.
Wast Rutland, VT O5777
(802) 776-0260 (802) 438-6603
Radon Detection Services, Inc., ID
10400 Connecticut Ave.
Suite 604
Kensington, MD 20896
(301) 933-7900
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State Radiation Representative's Office.
| Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses in-house or making measurements
using operators employed by and instruments belonging to the company.
-------
TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company
IN)
en
Radon Detection Services, Inc., NJ
P.O. Box 419
Rlngoes, NJ 08661
(2O1) 788-3080
Radon Detection Services, PA
P. 0. Box 3309
Allentown, PA 181O8
(215) 481-9656
Radon Detection Systems (NJ)
8 Quincy Court
Parcippany, NJ O7054
(303) 444-5253
Radon Detection Systems, CO
24SO Central Avenue, Suite A-l
Boulder, CO 803O1
(303) 444-6262 (800) 627-2366
Radon Detection and Control
P. 0. Box 419
South Heights, PA 16O81
(412) 376-1700
Radon Detection of MS
PO Box 9699
Columbus, MS 39706
(601) 328-4687
Radon Detection, Inc.
131 Amherst Street
P. 0. Box 900
Amherst, NH 03031-0900
(6O3) 882-734O
Measurement Methods
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Radon Detectors
RD |1, Box 177, RT 224
Van Etten, NY 14889
(607) 689-6223
Radon Diagnostic Laboratories
231 Front Street
South Portland, ME 04106
(207) 767-2818
Radon Diagnostics, Inc.
P.O. Box 761
Andover, NJ O7821
(201) 729-1261
Radon Engineering Services Ine
3129 Overton Rd.
Birmingham, AL 35223
(205) 987-2666
Radon Engr, a Unit of PSI Engr, Ine
One Lethbridge Plaza
Mahwah, NJ O743O
(201) 629-8300
Radon Environ. Testing Svcs, Inc.
P. 0. Box 7O
Vandal is, OH 45377
(613) 898-6141
Radon Environmental Monitoring, Ine
Box 6306
Evanston, IL 6O2O4
(312) 328-6628
Measurement Methods
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State Radiation Representative's Office.
| Non-commrclal laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses in-house or making measurements
using operators employed by and Instruments belonging to the company.
-------
TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company
Measurement Methods
e Company
Meaaurement Methods
Radon Environmental Svcs, Inc. - IN
893E N. Meridian St.,Suite 11O
Indianapolis, IN 46260
(317) 843-O804
Radon Environmental Svca, Inc. - TN
8935 N. Meridian St.
Indianapolis, IN 46260
(317) 843-O804
Radon Evaluation Olv., Evaldo Ltd.
64 Sunset Hill Dr.
Branford, CT 064OS
(203) 488-471B
Radon Gasbustera
892 Green Lane
Union, NJ O7O83
(2O1) 363-6577
Radon Information A Testing Service
29 Appleton St.
Manchester, NX O3104
(6O3) 627-7281
Radon Inspection Service, Inc.
769 East Glen Avenue
Ridgewood, NJ O746O
(201) 67O-8821
Radon Instrumental Detection
Suite §116, 8000 W. HOth
Overland Park, KS 66210
(913) 461-9270
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Radon Intervention
P.O. Bon 827
Three Rivers, TX 78071
(612) 766-4276, 1-800-232-1811
Radon Labs (Woburn)
P.O. Box 2243
Woburn, MA 01888-0443
(617) 664-O316
Radon Labs of Atlanta
6400 B-l Hwy 29
Li(burn, GA 3O247
(4O4) 279-0005
Radon Labs, Inc.
3 Deer TraiI
Tabernacle, NJ O8O88
(800) 627-462O (6O9) 869-O944
Radon Labs. (Cambridge)
P.O. Box 2054, Harvard Square
Cambridge, MA O2138
(617) 876-O46O
Radon Ltd.
411 North Welnbach Ave.
Evansvllle, IN 47711
(812) 479-311O (800) 634-2901
Radon Measurement A Control of Ml
1627 Granite St. NW
Albuquerque, NM 871O4
(606) 843-7643
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State Radiation Representative's Office.
| Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses in-house or making measurements
using operators employed by and instruments belonging to the company.
-------
TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
• Company
Radon Measurement and Services
13131 West Cedsr Drive
Lskewood, CO 80228
(303) 98O-6O86
Radon Measurements Inc.
2916 West T. C. Jester
Houston, TX 77018
(713) 683-8227
Rsdon Mitigation Services
4044 SW 13th Street |163
Gainesville, FL 326OB
(904) 376-6666
Radon Mltlgatora, Inc.
16 Hillside brive
00 Clinton, NJ OB8O9
(201) 730-6696
Radon Monitoring Services, Inc.(MA)
P. 0. Box 8730
Plymouth, MA 02361
(617) 748-8868
Radon Project, The
P. 0. Box 90069
Pittsburgh, PA 16224
(412) 687-3393
Radon QC
Palmar Professional Building
2867 Nazareth Road
Palmar, PA 18O43 „
(216) 669-1636
Measurement Methods
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Radon Reduction Engineering • Lab
211 Mill Street N.E.
Vienna, VA 22180
(7O3) 281-7866 (7O3) 281-3730
Radon Registry
819 Second St. B-178
Manchester, NH O31O2
(6O3) 646-6780
KBoon nocnoo i 0s
85 S. Algonquin Ave.
Columbus, OH 432O4
(614) 272-7772
Radon Research Croup, Inc.
P.O. Box ll43
Germantown, MD 2O874
(800) 446-8436, (301) 972-3309
Radon Resources
241 Rumen Road
Atlanta, QA 3O3O6
(404) 231-4732
Radon Resources, Inc.
66 Constitution Drive
Bedford, NH O31O2
(603) 472-6966
Radon Safe (MI)
7696 Wheaton Drive
Canton, MI 48187
(313) 466-6469
Measurement Methods
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State Radiation Representative's Office.
| Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses In-house or making measurements
using operators employed by and Instruments belonging to the company.
-------
TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING tCW HAMPSHIRE
Company
Radon Safety Services, Inc.
1474 Rout* 23 N Suite 3
Wayne, NJ O747O
(2O1) 633-8337 (201) 633-8406
Radon Safety and Technology Corp.
4 Charlea Street
Pleasant Valley, NY 12669
(914) 636-1138 (BOO) 662-6267
Radon Screening Inc.
7 Brookerest Ct.
Fredericksburg, VA 224O1
(703) 786-4320
Radon Screening Service, Inc.
P. 0. Box 37007
Denver, CO 80237
(303) 741-32O7
Radon Services
121O Auburn Way N. Suit* B-122
Auburn, WA 98002
(206) 939-3023
Radon Services Analytical Lab.
Ill Benson Rd.
Nashville. IN 37214
(616) 883-4669
Radon Servlcea of North America Ine
148 East 632 North
Valparaiso. IN 46383
(219) 462-6866 *
Measurement Methods
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Radon Services, Ine.
296O BanksviIle, Road
Pittsburgh, PA 16216
(412) 663-OE53
Radon Specialist of America
12628 Grey Eagle Ct., Suite 12
P. 0. Box 81O
German town, MD 20874
(301) 231-4O91
Radon Systems of Rhode Island
1S6 Earle Street
Woonsocket, RI 02896
(4O1) 766-7072
Radon Technologies Inc. (VA)
12200 Sunrise Valley Drive
Reston, VA 22O91
(800) 237-6024
Radon Technology, Inc.
7 Tokanel Drive
Londonderry, NH 03063
(603) 434-4937
Radon Testing • Environmental Cntrl
7113 Chippenham Road
Louisville, KY 40222
(602) 426-4314
Radon Testing Consultant*, Ine.
PO Box 26313
Newark, NJ 071O1
(201) 290-9217
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State Radiation Representative's Office.
| Non-coomarciel laboratory for research purposes or State agencies' assistance only.
Not*: Underscored methods Indicate a primary company capable of performing measurement analyses In-house or making measurements
using operators employed by and instruments belonging to the company.
-------
TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company
Measurement Methods
Company
OJ
o
Radon Testing Corp. of America
12 W. Main Street
Elmsford. NY 10623
000/467-2366, 600/637-7822 -NY
Radon Testing Corporation
P.O. Box 329
Col lag* Park. MD 2O74O
(3O1) 283-6008
Radon Tasting Inc.
P.O. Box 7304
Fairfax Station, VA 22O39
(703) 591-1111
Radon Tasting Lab of New Eng.
P. 0. Box 4508
Boston, MA 021O1
(617) 426-9224
Radon Tasting Services (San Diego)
P. 0. Box 162227
San Diego, CA 92116-OB7O
(619) 229-9002 (619) 287-6317
Radon Testing Services (LIT)
4O98 Scenic Drive
Provo, UT 84604
(800) 777-232O
Radon Testing Services of MO
PO Box 362
Trenton, MO 64683
(816) 369-4442
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Radon Testing Svc, Pittsburgh, PA
P. 0. Box 19426
Pittsburgh, PA 16213
(412) 687-1633
Radon Testing Svcs, Baltimore, MD
P. 0. Box 7999
Baltimore, MD 21221-0999
(301) 321-8008
Radon Trac, Inc.
2226 Industrial Blvd.
P. 0. Box 4O1E
Sarasota, FL 34234
(813) 355-7136
Radon X Company, Inc., The
217 Roxbury Street
Kaene, NH 03431
(603) 352-6319, (8O2) 267-4876
Radon-One Lab Service, Inc.
4700 East Fifth Avenue
Columbus, OH 43219
(614) 239-7171
Radontcs, Inc. - MA
12 Naponset St.
Norwood, MA 02062
(800) 8-Radon-O
Radonix Ltd.
P. 0. Box R
Lake Grove, NY 11766
(616) 467-378O
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State Radiation Representative's Office.
ff Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses In-house or making measurements
using operators employed by and instruments belonging to the company.
-------
TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING IEW HAMPSHIRE
Company
Randolph A Associate*-, Inc.
8SO1 N. Industrial Road
PoorIa, IL 61816
(309) 692-416O
Real Estate Support Services, Inc.
7826 Washington Ave. So. Suite 900
Minneapolis. IM 66436
(612) 941-7668
Recon Systems, Inc.
P.O. Box 460
Three Bridges. NJ 08887
(201) 782-690O
Residence Radon
28077 W 85th Terr.
Desoto, KS 66018
(913) 686-1O94
Residential Radon Test Service Inc.
126 Old Oaken Bucket Raod
Scituata, MA 02066
(617) 646-9160
Retrotec USA, Inc.
6216 Morencl TrelI
Indianapolis, IN 46288
(317) 297-1927
Rocky Mtn Medical Physics Inc.
7176 W. Jefferson Avenue
Suite 2160
Lakewood, CO 80236
(303) 980-7070
Measurement Methods
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Rogera A Assoc. Engineering Corp.
616 Eaat 4600 South, Suit* G-200
Salt Lake City, UT 84107
(801) 283-160O
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Brandels University
416 South St.
Waltham, MA 02164
(617) 736-2461
Ross Systems, Inc.
21 Main St.
TO Box 670
Blairstewn, NJ O7826
(2O1) 362-6671
Roy F. Weston, Inc.
One Weston Way (Bldg. 4-2)
West Chester, PA 1938O
(216) 692-303O ext 2746
Rueck Associates
103 Sage Road
Silver Lake, KS 66639-9461
(913) 682-4060
Ryan Nuclear Laboratories
P.O. Box 88
West Jefferson, OH 43162
(614) 879-7736
Sam Stewart Testing
P. 0. Box 7304
Fairfax Station, VA 22039
(703) 26O-9203
Measurement Methods
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State Radiation Representative's Office.
| Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses In-house or making measurements
using operators employed by and instruments belonging to the company.
-------
TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company Measurement Method*
Scientific Analysis, Inc. CC
6012 East Shirley Lane
Montgomery, AL 36117
US:800-345-2676 AL:800-288-168
Scientific Testing Associates, Ltd. CC
Star Route BOM 124
Topping, VA 23169
(804) 768-6728
SepTech OR
W. 204 St. Thomas Moore Way
Spokane, WA 992O8
(5O9) 467-6274
Solar Testing Laboratories Inc. CC
954O Midwest Avenue
Garfield Heights, OH 44126
(216) 663-180O
Sol id State Radon Detection CC
P. 0. Box 107
Glenwood. NJ O7418
(201) 764-8666
Sorensen Enterprises, Inc. CC
PO Box 1363
Maryvllle, TN 37802-1363
(616) 984-1376
Southern Mechanical CC
6060 W. McDonough Dr.
Norcross, GA 30093
(4O4) 289-9637, 242-8999
• Company
Southern Radon Services, Inc.
1000 Johnson Ferry Rd.
Suite B-146
Marietta, GA 30068
(4O4) E6E-3888
f Southern Research Institute
P. 0. Box 653O6
Birmingham, AL 35266-6306
(2O5) 681-2446 (206) 681-2424
Southwest Abatement, Inc.
4200 Broadway S.E.
Albuquerque, Ml 871O2
(SOS) 873-2967
Special Envir. Services, Inc.
P. 0. Box 20058
Atlanta, CA 30326
(4O4) 355-6600
Stan A. Huber Consultants, Inc.
200 North Cedar Road
New Lenox, IL 6O461
(816) 485-6161
Standor Radon Detection
698 S. Edgewood Ave.
Jacksonville, FL 32206
(904) 388-0284
Star Laboratories, Inc.
P. 0. Box 1666
Plymouth, MA 02360
(617) 747-6227
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State Radiation Representative's Office.
f Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses in-house or making measurements
using operators employed by and instruments belonging to the company.
-------
TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
Company
Sun Nuclear Corporation
41E-C Pined* Court
Melbourne, FL 32940
(407) 269-6862
Swat Termite and Peat Control, Inc.
1797 Roswell Rd.
Marietta, GA 30062
(404) 665-7928
T. R. Edgerton. Inc. (TREI)
103 F Woodwinds Industrial Court
Cary, NC 27611
(919) 469-9795
TCS Industries, Inc.
3805 Panton Street
Harrlsburg, PA 17111
(717) 658-8206
TEQ, Corporation
P.O. Box 67O
Wi Ikes-Barre, PA 187O3-O67O
(717) 825-3939
TMA/Eberline, Health Physics
6636 Kircher Blvd. N.E.
Albuquerque, Ml 87109
(606) 345-9931
nw/Eberllne, Laboratory
7021 Pan American Highway, NE
Albuquerque, Ml 87109
(605) 345-3461
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Company
TMB Co
390O Parkaide Drive
Baltimore, MD 21208
(301) 485-8734
TRC-ECI
800 Connecticut Blvd
East Hartford, CT 081O8
(203) 289-8631
Target Radon Services, Inc.
Oakland Center
8940-A Route 1O8
Columbia, MD 21O4S
(301) 992-6622
Technorad
P. 0. Box 2144
Rockvllle, MD 2O852
(301) 881-8293
Techtrac
P. 0. Box 5O5O Suite 303
Lewisville, TX 75067
(214) 221-1O47
Teledyne Isotopes
60 Van Buren Avenue
Waatwood, NJ O7676
(2O1) 664-7070
Temple University
CECSA 084-53
Attn: Radon Program
Philadelphia, PA 19122
Measurement Methods
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State Radiation Representative'a Office.
| Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods Indicate a primary company capable of performing measurement analyses in-house or making measurements
using operators employed by and Instruments belonging to the company.
-------
TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
• Company
Terminlx International
P. 0. Box 17167
Memphis, TN 38187
(901) 766-1379 (901) 766-1369
Terredex Corporation
3 Science Road
Glenwood, IL 6O426
(312) 765-7000
Terradon Exploration Technologies
P.O. Box 222B8
Cleveland, OH 44122
(216) 464-2002
Todd Giddings and Associates, Inc.
3O49 Enterprise Drive
State College, PA 16801
(814) 238-6927
Tom Scurry Associates
1976 Linden Drive
Boulder. CO 8O3O2
(303) 444-4802
Tracer Jltco
16O1 Research Boulevard
Rockvllle, M> 20860
(301) 984-2861
Trl Court Safety and Security
P. 0. Box 1267
Sunset Beach, CA 90742
(714) 846-4348 *
• Company
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True Test Co., WA
1436-C Brandt Rd.
Vancouver, WA 98661
(206) 696-O967
Tucson Home Inspections, Inc.
P. 0. Box 60846
Tucson, AZ 86703-1846
(602) 881-6611
Twin City Testing
662 Cromwell Ave.
St. Paul, MN 66114
(612) 645-36O1
U-Tech Industries
42 Edgeboro Road
East Brunswick, NJ O8816
(2O1) 249-6600
U. C. I./Envirotest
34100 Center Ridge Road
North Ridgeville, OH 44O39
(216) 327-9432
U.S. Toxic Substance Testing Bureau
1O24 Cottinan Avenue
Philadelphia, PA 19111
(216) 746-7778, (800) 636-8378
U.S.T. Labs
1024 Cottinan Ave.
Philadelphia, PA 19111
(216) 746-7778, (800) 635-8378
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State Radiation Representative's Office.
| Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods Indicate • primary company capable of performing measurement analyses In-house or making measurements
using operators employed by and instruments belonging to the company.
-------
TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
• Company
Measurement Method*
• Company
Agency
en
| US Army Envlr. Hygl
Attn: HSHB-ML-RR
Aberdeen Proving Ground, M>
21010-6422
(301) 671-2619/2637
f US Department of the Army
Belvelr ROtE Center
Attention: STRBE-VR (Cuadagno)
Fort Bolvoir, VA 2206O-E6O3
(7O3) 664-6133
| US E.P.A., La* Vegas. NV
422O S. Maryland Parkway
LaPlaza Bldg.C, Room 632
Las Vegas, NV 89119
(7O2) 798-2447
US Radon Testing Service
820 S. 24th Street
Arlington, VA 22202
(703) 684-4528
United Services Alliance Inc.
4900 Lessburg Pike
Suite 21O
Alexandria, VA 223O2
(7O3) 846-1324
Univ. of Colorado-Colorado Springs
Dept. of Physics
P. 0. Box 71BO
Colorado Springs, CO 80933-7160
(303) 693-3214
Univ. of Pittsburgh Radon Project
Physics Deptartment
Pittsburgh, PA 15260
(412) 624-9246 •*•
CC
cc
CR
CC
EP
CC.GR
CC.EP
| Univ. of TX School of Public Health
P. 0. Box 20166
Houston, TX 77226
(713) 792-4431
University Home Health Services Inc
67O Centre Street, Suite 9
Jamaica Plain, MA O213O
(617) 624-2149 (617) 622-2793
f University of Lowell
1 University Avenue
Lowe11, MA 01654
(617) 453-1O45
University of New Mexico
Department of Geology
Albuquerque, NM 87131
(605) 277-2310 (505) 277-42O4
Up-Country Home Inspectors Inc
P. 0. Box 1668
Scarborough, ME O4074
(2O7) 883-9876
Valley Home Inspections Inc.
P. 0. Box 1677
Chandler, AZ 85244-1677
(602) 988-1375
Varltech
47 Carey Ave.
Butler, NJ O7406
(2O1) 492-8744
Meaauremant Methoda
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CC
CC
AT
CC.CR.EP
CC
CC
• More detailed information on the measurement companies' services and past performances is available upon request from your
State Radiation Representative's Office.
| Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods Indicate a primary company capable of performing measurement analyses In-house or making measurements
using operators employed by and Instruments belonging to the company.
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TABLE 1
PROFICIENT MEASUREMENT COMPANIES SERVING NEW HAMPSHIRE
• Company
Virginia Radon Service, Inc.
BOH 332 B Route 1
Rosalind, VA 22987
(804) 277-5491
W. S. Fleming and Associates
631O Fly Road
E. Syracuse. NY 13067
(315) 437-1889
Watar Tast Corporation
33 South Commercial Streat
Manchester, NH O31O1
(603) 623-7400
Western Environmental, Inc.
432O-B Northpark Drive
Colorado Springs, CO 80907
(719) 628-6132
| Willies College
Physics Dept.
Wilkes-Barre. PA 18766
(717) 824-4651 ext 4822
Wright Lab Services, Inc.
34 Dogwood Lane
Uiddlatown, PA 17067
(717) 944-6641
Measurement Methods
CC
e Company
Measurement Methods
AT.CC.CR.CR
CC
CC
AT,CC,CR,CW,GR
CC
• More detailed Information on the measurement companies' services and past performances Is available upon request from your
State Radiation Representative's Office.
ff Non-commercial laboratory for research purposes or State agencies' assistance only.
Note: Underscored methods indicate a primary company capable of performing measurement analyses In-house or making measurements
using operators employed by and instruments belonging to the company.
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APPENDIX
Radon Instrumentation
Comparisons Between Radon Concentrations and Radon Decay Product Concentrations
Radon measurements are reported In two ways. One Is to report the concentration
of the radon gas Itself. The unit Is plcocurles per leter (pCI/L). The other
Is to report In units that represent the energy released by the chain of
products produced when radon gas rad loact Ively decays. This unit Is the working
level (NL). Devices oust used by residents usually read In plcocurles per liter
while the unit most directly related to dose and health effects Is the working
level. The U.S. Environmental Protection Agency recommends corrective actions
be begun when radon decay product levels are 0.02 NL or more. This Is
approximately equivalent to 4 pCI/L.
Alpha-Track Detector (AT)
An alpha-track detector consists of a sun 11 piece of plastic enclosed In a
filter-covered container. These are passive devices requiring no electrical
power. Some alpha-track containers look like large pill boxes, others like
clear plastic drinking glasses. Alpha particles emitted by the radon decay
products In air strike the plastic and produce submIcroscop Ic damage tracks. At
the end of the measurement period (often about one month), the detectors are
returned to a laboratory where the plastic Is placed In a caustic solution that
enlarges the damage tracks so they can be counted using a microscope or an
automated counting system. The number of tracks per unit area Is converted to
an average radon gas concentration In air for the measurement period.
Activated Charcoal Adsorption (CC)
Charcoal adsorption detectors are devices filled with activated charcoal onto
which radon In air will adhere. Some are circular cans 2-4 Inches In
diameter, about 1 Inch deep, and fitted with a screen to both keep In the
charcoal and let In room air. Other charcoal detectors look like large tobacco
pouches Into which room air can diffuse. Radon In air will be adsorbed onto the
charcoal over the sampling period of 2 - 7 days and will subsequently decay.
depositing decay products In the charcoal. When returned to the laboratory,
radon decay product emissions from the charcoal are measured with sensitive.*
gamma-ray detector, data Is corrected for moisture In the charcoal, and the
results reported as an average radon gas concentration in air for the
measurement period.
Continuous Radon Monitor (CR)
A Continuous Radon Monitor consists of three parts (1) a pump. (2) a filter that
removes dust and radon decay products and (3) a scintillation cell. The pump
draws room air through the filter and Into the scintillation cell. When radon
In the cell radloact Ively decays, its decay products strike the zinc sulphide
coated walls and produce tiny light flashes. The number of light flashes is
A-l
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measured electronically and Is proportional to the radon In air concentration.
A continuous radon monitor requires electrical power. It can be used to look at
changes In radon concentrations over periods of minutes to hours to days.
Grab Radon (GR)
Radon grab samples are very quick determinations of the radon in air
concentration taken with scintillation cells. These cells have a clear surface
at one end and are coated Kith zinc sulphide on the remaining Inner surfaces.
To take a measurement, the cell Is evacuated, taken to the sampling location,
opened allowing room air to rush In, and then sealed to trap the radon Inside.
In a laboratory, tiny light flashes produced by radon decay products striking
the Inner zinc sulphide coated surface are electronically detected through the
clear window In one end of the cell. The number of light flashes Is
proportional to the radon In air concentration. Radon grab samples measure the
radon concentration at the Instant the sample was taken and may not be
representative of average conditions to which people are exposed.
Grab Working Level (GH)
Grab working level measurements are quick determinations of radon decay product
concentration. Samples are taken by drawing a known volume of air through a
filter with a pump and collecting the radon decay products on the filter.
Sampling periods are short, usually five minutes. Filters are counted for alpha
particle emissions during mathematically determined periods after the sample Is
collected. A single count method Is known as the Kusnetz Method and a three
count method Is known as the Tslvoglou Method. Radon decay product grab samples
measure the average radon decay product concentration In a short collection
period and may not be representative of average conditions to which people are
exposed.
RPISU - Radon Progeny Integrating Sampling Unit (RP)
The RPISU contains an air sampling pump that draws a continuous flow of air
through a detector assembly. The detector assembly Includes a filter and at
least two thermolumlnescent dosimeters (TLDs). One TLD measures the radiation
emitted from radon decay products collected on the filter and the other TLD Is
used for a background gamma-ray correction. The pump and detector assembly are
operated for 2 - 7 days continuously. TLDs must be read with a special reader
In a laboratory. Results are reported as radon decay product concentrations. ~
Continuous Working level Monitor (CW)
A Continuous working level monitor draws room air through a filter at low flow
rates. As radon decay products collect on the filter an alpha particle detector
counts emissions from the finer. Data Is electronically processed and can give
successive radon decay product concentrations over desired Intervals from
minutes to hours.
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E-PERM - Electret Passive Environmental Radon Monitor (EP)
E-PERMs are passive devices requiring no power to function. They are
Integrating detectors and can be used to determine the average radon
concentration In the room where the device Is located during the measurement
per lod.
E-PERMs are fabricated from steel canisters of two sizes: a SOOcc PERM for
short-tern measurements of 2 to 14 days duration, and a SOcc PERM for long-tern
measurements of from three to twelve nonths. These E-PERMs function as
lonlzatlon chambers. I.e.. they contain a peroanently charged electret which
collects Ions formed in the chamber by radiations from radon and radon decay
products. When the device Is exposed to radon, these Ions are generated
continuously by the radon decay and oove to the surface of the electret reduce
its surface voltage. The amount of voltage reduction Is directly related to the
average radon concentration present during the exposure period.
The electret assembly, In both short and long-tern E-PERMs. Is suspended from
the lid of the canister facing downward. The botton of the canister contains a
filtered hole to pernlt radon entry. (The filter Is positioned on top during
the exposure.) The electret assembly Is covered with a protective cap during
storage and shipment. When this cap Is In place the E-PERM Is "off because no
Ions can reach the electret. The user nust remove this protective cap when
he/she wishes to start monitoring radon and replace It again when the exposure
perlod Is over.
When the E-PERMs are returned to the laboratory, the electret Is removed and the
surface voltage Is re-measured. This final voltage value Is subtracted from the
Initial value taken before exposure and the difference Is divided by a
calibration factor to determine the average radon concentration value during the
short-tern exposure.
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