To help laboratories comply with and use
these analytical procedures, Restek has been
active in following the state guidance. Based
on our good knowledge of the methods, our
experienced chemists have developed a list of
the appropriate technical service tools and
analytical products to achieve success with
these methods. We offer quality chromato-
graphic columns, analytical referencemateri-
als, and sample preparation products.
In this comprehensive product listing, you
will find everything you need to quickly set
up or reorder consumables for thesemethods.
Please refer to our latest product catalog or
call 800-356-1688 or 814-353-1300, ext. 3,
formore information.Also, wewill be happy
toprovide a quote on any custom consumable
youmay need!
Regulatory and Analytical Methodology
Contact Information
UST CONTACT
WisconsinDepartment of
Commerce, Environmental&
Regulatory ServicesDivision
P.O. Box 7837
Madison,WI 53707-7837
Phone: 608-266-0956
Fax: 608-261-7725
LUST CONTACT
WisconsinDepartment of
Natural Resources
P.O. Box 7921
Madison,WI 53707-7921
Phone: 608-267-7560
Fax: 608-261-7725
Wisconsin's UST programmaintains aweb site at
Wisconsin's LUST programmaintains aweb site at
✔
Comprehensive products listing for the latest USTmethods used by
the State ofWisconsin.
✔
Products conveniently organized bymethod number.
✔
Easymethod set-up and reorder of consumables, including:
Gas chromatography columns and accessories,
Analytical referencematerials,
Sample preparation supplies,
Technical service.
In 1992 theWisconsinDepartment of Natural Resources (WDNR) published its technical
guidance in assessing and closing underground storage tanks (UST). In accordance with
Wisconsin state law and applicableUSEnvironmental ProtectionAgency (EPA) UST site
assessment requirements, WDNR requires site assessment to determine if a release has
occurred from aUSTSystem. In the technical guidance,WDNR released the first versions
of modified gasoline range organic (GRO) and diesel range organic (DRO) methods. In
September 1995, WDNR approved the modified GRO and DRO methods. These two
methods, knownasWisconsinGROandDRO, havebeenused invarious laboratories since
1996; they are popular analytical procedures, not only in the State ofWisconsin but also
inmany other states.
The GRO method is based on purge and trap GC/FID/PID analysis and is designed to
measure the concentration of GROs (C6-C10) and petroleum volatile organic compounds
(PVOCs) inwater or soil. TheDROmethod is based on solvent extractionGC/FID and is
designed tomeasure the concentration of diesel range organics (C10-C28) in water, soil,
or waste. DRO also can be used tomeasure kerosene, motor oil, or lubricant oil.
800-356-1688
814-353-1300
At-a-Glance
Product
Information
fromRestek
State ofWisconsin
USTMonitoring
JoeMoodler
Analytical ReferenceMaterials
CustomStandards Group Leader
814-353-1300, ext. 2148
Ken Herwehe
Analytical ReferenceMaterials
Product MarketingManager
814-353-1300, ext. 2127
