Establishment of U.S. Geological Survey (USGS) laboratory for determination of chlorofluorocarbons (CFCs) in air and water samples
In Reply Refer To: December 29, 1994
Mail Stop 412 or
Mail Stop 411
OFFICE OF WATER QUALITY TECHNICAL MEMORANDUM NO. 95.02
OFFICE OF GROUND WATER TECHNICAL MEMORANDUM NO. 95.02
Subject: Establishment of U.S. Geological Survey (USGS)
laboratory for determination of chlorofluorocarbons
(CFCs) in air and water samples
The purpose of this memorandum is to announce the availability
of analytical services for determination of the chlorofluoro-
carbons CFC-11, CFC-12, and CFC-113 in air and water samples,
and to set policy and procedures for obtaining these services.
The chlorofluorocarbon laboratory, coordinated by Julian E.
Wayland, is being established in Headquarters within the
National Research Program and supervised by Eurybiades
Busenberg and Niel Plummer.
A form to request CFC analyses is provided as Attachment 1.
In addition, Attachment 2 describes hydrologic applications
of CFCs, field sampling and site selection considerations,
and logistical aspects of the CFC laboratory. In submitting
samples to the CFC laboratory, particular attention should
be given to the sections of Attachment 2 on "Samples that
should NOT be submitted to the Reston CFC laboratory," and
on "Responsibilities of the project requesting the service."
The establishment of the Reston CFC Laboratory provides
greatly enhanced capability to USGS projects for detecting
and age-dating young ground water. We encourage use of this
technique where such information is likely to be of value.
William M. Alley David A. Rickert
Chief, Office Chief, Office
of Ground Water of Water Quality
2 Attachments
Keywords: Tracers
Distribution: A, B. S, FO, PO
Attachment 1
Request for CFC Analyses
Today's date:__________ Name of contact:_____________________
E-mail:_____________________ Phone No:_______________________
FAX:___________________________
Description of job (where?, project?, purpose of CFC dating?):
___________________________________________________________
___________________________________________________________
___________________________________________________________
Shipping Address:_________________________________
_________________________________
_________________________________
_________________________________
Account number for billing:_______________________
Dates of sampling:__________________________
When to ship equipment:___________________________
When equipment and ampules will be returned:__________________
Estimated number of wells:__________
Type of wells:____monitor; ___domestic; ___municipal; ___other
Well diameters: ___2"; ___4"; ___6"; ___other; _____________
Range of well depths:_______________ feet
Materials in well construction: ___PVC; ___metal; ___other
Pump(s) to be used:__________________________________________
Material in discharge line of pump:_________________________
Equipment to be sent:
___CFC sampler; ___Spare parts; ___Trap; ___Ampule holder
___Ampules; ___Connector to well; ___other: ______________
Number of ampules to ship:___________
Are dissolved gases (N2 and Ar) to be sampled: ____;
How many?_____
Will CFC-surface water samples be collected? ____; If so,
how many? ______
Will CFC-air samples be collected? ____; If so, how many?____
Other field samples and analyses: ___3H, ___DO, ___H2S
___CH4; ___pH, cond.temp.; ___stable isotopes
Do you need training on CFC sampling procedures? __yes;__no
Do we need to send someone to help with training, sampling?
___yes; __no
Address and contact for Reston CFC Laboratory:
Julian E. Wayland (703-648-5730)
Bonnie Hower (secretary -- 703-648-5838)
FAX: 703-648-5832
U.S.Geological Survey
12201 Sunrise Valley Drive
432 National Center, Rm. 5B127A
Reston, VA 22092
(see hard copy of tech memo for attachment 2)