News and Information
September 2011

dispos-a-filter™ Disposable Filter Capsules  

The Original Groundwater Sampling Disposable Filter Capsule

In 1978 Geotech was asked by the USGS to come up with a way to measure the amount of dissolved metal in water for their Trace Metal Analysis program, the first water quality program in the US. Geotech’s solution was to filter water through a .45 micron membrane on a holder that would allow only dissolved metals to pass through. How to use these membranes effectively for trace metal analysis in water was developed first by Geotech. Manufactured to Geotech’s exact specifications, these flat-stock filters and holders became the first filtration systems made and sold for environmental water quality sampling. Improved products soon followed, such as acrylic filter holders.

Because some site conditions make using and decontaminating flat-stock filters and holders difficult, customers asked Geotech if they could come up with an easier and cheaper way to do on-site analysis. Geotech came up with the disposable in-line filter capsule, using the same .45 micron membrane media as the flat-stock filters and made to the same high standards. Geotech called it the dispos-a-filter™ and it became the model and standard for all the other disposable filter capsules for water sampling that followed.

Other varieties of dispos-a-filters™ were soon added to satisfy the different requirements of customers, such as low volume and small capacity filter capsules. Geotech became the leader in groundwater filter sampling.

Current dispos-a-filter™ capsules include High Capacity, Medium Capacity, and Low Capacity models in 0.45, 1.0, 5.0 and 10.0 micron sizes. dispos-a-filters™ are certified to exhibit non-detectable levels when a metals analysis is performed on their effluent using ICAP, ICP-MS or GFAA instrumentation.

Manufactured in a Class 100 clean room, ICP-MS instrumentation was used to perform a certification for 68 metals and 7 anions in ppb range. All manufactured lots are ISO 9000 tested by an independent laboratory using EPA-approved test methods.


Filtering water sample using a 45 micron Dispos-a-filter

"In regards to the 1.0 micron groundwater filters that we use in Florida, I am very pleased with the performance and quality of this product. In addition, to my knowledge we have never had any quality control related issues arise during the use of this product." A satisfied project manager in Florida.

September Savings Kicioff
Special Offer

Interface Meters &
Water Level Meters

10% OFF!

See Coupon

New amplified pH & ORP Sensors

Amplified Sensors

Pay the same price
as the standard sensors

See Coupon

Value priced filter capsules

Premium Filter Capsules

As low as $6.85 each
See Coupon


Geotech August Photo Competition Winner

Amy Townsend-Small collecting sample with Geopump

Amy Townsend-Small
(Assistant Professor, University of Cincinnati) took this picture of Dr. Richard Beck and graduate student Chantal Ivenso filtering stream water near Lake Erie, Ohio using a Geotech Geopump Series I Peristaltic Pump. They set up a mobile lab in the back of their van, using the cigarette lighter adapter for the Geopump. They sampled 15 rivers in two days with this set up!


Past Competition Winners

July 2011
July Winner

June 2011
June 2011 Winner

May 2011
May 2011 Winner

April 2011
April 2011 Winner

February 2011
February Winner
January 2011
January Winner

December 2010
December Winner
November 2010
November Winner

October 2010
October Winner

Take a Picture
Enter the Geotech
Product Photo Competition!

Win valuable prizes and have some fun taking
action shots of people using
Geotech brand equipment!
Take as many pictures as you like!
A $100 gift card will be awarded each month!
Winning photos will be published in
Geotech's monthly electronic newsletter
and on the web site.

What constitutes a winning photograph? We'll award points if your photo...

  • clearly shows Geotech products in use (extra points if the brand is visible!),
  • has a companion photo showing as much of the site as possible (with site owner's permission, of course),
  • is well composed: nice framing, interesting background… extra points if the viewer can tell type of project you were working on,
  • is 2+ MB in size for printable resolution, and
  • has an unusual twist or story: equipment being used overseas, on an interesting project, or for humanitarian purposes… wildlife or Mother Nature butting/intruding… the perfect shot at sunset, etc.

Entering the competition is easy, go here to review the rules and guidelines and download the entry form.

Used Equipment Deals
Featured Product

Compound specific monitor with combination of
interchangeable separation tubes and PID.

All accessories include hard case, manual, battery pack and charger, tool kit, and more.
Featured Product

Geocontrol Pro Rental Kit

Geotech Geocontrol PRO
Low flow sampling controller
with built-in compressor
Kit as shown above.

As a reminder, always check our web site for great deals on
used equipment.

Look for Geotech Environmental Equipment at the events listed below.

Florida Remediation Conference

October 13-14, 2011

2011 Florida Remediation Conference

Make your plans to be in Orlando for the 17th Annual Florida Remediation Conference, the Southeast’s premier soil, groundwater and surface water conference of the year. It is a technical conference in a casual atmosphere. Please stop by booth 18 and meet Scot Forrest from our Fort Myers office.

For more information


October 15-19, 2011

84th Annual Water Environment Federation Technical Exhibition and Conference


Visit us at the largest water quality event in North America! The latest in water quality research, technology and services will be on display at WEFTEC 2011. WEFTEC offers the best water quality education and training available today and is a leading source for water quality developments, research, regulations, solutions, and cutting-edge technologies.

Visit us at booth 1104, mention this email and get a complimentary hat (until we run out).

First three emails to with the subject line WEFTEC Guest Pass will receive a complimentary pass, a $270 value! Only one guest pass per company, please.

For more information

AEHS Soils, Sediments, Water & Energy

October 17-20, 2011

The Association for Environmental
Health & Sciences Foundation presents

The 27th Annual International Conference on Soils, Sediments, Water and Energy

This event has become the preeminent national conference in this important environmental area. The conference attracts 700-800 attendees annually which includes a wide variety of representation from state and federal agencies; military; a number of industries including railroad, petroleum, transportation, utilities; the environmental engineering and consulting community; and academia.

For more information

NGWA Ground Water Expo

Nov. 29 - Dec. 2, 2011

63rd Annual NGWA Ground Water Expo and Annual Meeting

Groundwater professionals from all sectors of the industry — water well contractors/drillers, scientists, engineers, manufacturers, and suppliers — gather at the National Ground Water Association Water Expo and Annual Meeting to to advance today's, and tomorrow's, groundwater industry. Visit us in booth 725.

For more information

Pollutec Horizons

Nov. 29 - Dec. 2, 2011

Pollutec Horizons 2011

Pollutec Horizons, held in Paris this year, has chosen to spotlight three themes: analysis measurement and monitoring, waste recycling and cleaning, water and wastewater.

For more information

Geotech Catalog

Request your
Geotech Catalog now.

Call 1-800-833-7958

Geotech Catalog is now 336 pages and features more than 115 NEW PRODUCTS, fully illustrated, with specification charts and tables included.

There is a large resource section featuring the conversion tables, formulas and other reference information that environmental professionals need and use.

The catalog is divided into 12 environmental product categories:













Geotech Sales and Service Locations
Geotech locations map

2650 East 40th Avenue
Denver, Colorado 80205
Phone: 1-800-833-7958
Local: 303-320-4764
Fax: 303-322-7242

1600 North Interstate 35e, Suite 114
Carrollton, Texas 75006-3813
Phone: 1-800-276-5325
Local: 972-245-6575
Fax: 972-245-8889

12165 Metro Parkway, Unit 25B
Fort Myers, Florida 33966
Phone: 1-800-304-5325
Local: 239-476-8891
Fax: 239-476-8893

2517 Noblin Road, Suite 103
Raleigh, North Carolina 27604
Phone: 1-800-293-5325
Local: 919-876-1535
Fax: 919-878-1269

1099 East Grand River Road, Suite 6
Williamston, Michigan 48895-9062
Phone: 1-800-275-5325
Local: 517-655-5616
Fax: 517-655-1157

15 Tigan Street, Suite 1503
Winooski, Vermont 05404
Phone: 1-800-558-5325
Local: 802-651-3050
Fax: 802-651-3051

Abat Escarré # 12 Local
Mollet del Vallés Barcelona 08100 España
Tel: 93 5445937
Fax: 93 5700535

NEWGeotech Beijing Representative Office
Dadi Technology Mansion, Room 409
No 67 West Road North 4th Ring Road
Haidian District, Beijing China 100080
Phone: 86-10-82886758
Fax: 86-10-82888825

To contact Geotech:
Phone: 1-800-833-7958 E-mail: Fax: 303-322-7242

Prices and promotions mentioned in this newsletter are valid through September 30, 2011.
Geotech is solely responsible for the content in this newsletter.
Some items may not be immediately available at the time you receive this newsletter, call for details.
© 2011 Geotech Environmental Equipment, Inc.