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.Western Environmental Services & Testing, Inc.
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Main Office Location:
913 Foster Road Casper, Wyoming 82601

Mailing Address:
913 Foster Road Casper, Wyoming 82601

Phone: (307) 234-5511

Toll Free:
(800) 545-5711

Fax: (307) 234-8324

Web Address:

Contact: Alan Roylance

Contact's e-Mail:

Additional Office Locations:

P.O. Box 754 Evanston, WY 82931
76 Imperial Dr., Unit 1 Evanston, WY 82930
Phone: 307-234-5511 Fax: 307-234-8324
Toll Free: 800-545-5711
Chris Geuder
Contact's e-Mail:

Year Established: 1978

Testing Staff Size: 25

Certified V.E. Readers: 12

U.S. EPA Test Methodologies: 1-4, 5, 5A-H, 6, 6A-C, 7, 7A-E, 8, 9, 10, 10A-B, 11, 12, 13A-B, 14, 15, 15A, 16, 16A-B, 17, 18, 19, 20, 21, 22, 23, 24, 24A, 25, 25A-B, 26, 26A, 27, 28, 28A, 29, 101, 101A, 102, 103, 104, 106, 108, 111, 201A, 202, 301, 306, 318, 320, 321, SW-846 Methods, BIF Methods, NIOSH Methods and FTIR

Gaseous Monitoring:
O2, CO2, CO, NOX, SO2, VOC

On Site Sample Analysis/Titration: Pm, SO2, PM10, HCl, Hg, H2S, HF, NH3, SO3 and TRS

Gaseous Monitoring Dilution Probe: Yes

Mobile Labs: 12

Isokinetic Sampling Trains: 35

Geographic Testing Area: National & International Bids

International Mobility: Yes

Ambient Air Monitoring: Yes

Industries Served: All Industries Including - Asphalt, Soil Remediation, Cement, Manufacturers (Glass, Steel, Plastics, Chemicals, etc.), Food & Beverage, Pulp/Paper, Power Generation, Medical/Municipal Waste Incinerators, Petroleum/Fuel, Printing/Packaging, Sugar Mills, Semiconductor, Mining (Gold, Uranium, Coal), Military, Resin Plants and Brick Kilns

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Since 1978, we have been a leader in source emission testing and monitor certification throughout the United States. Our staff of twenty-five field personnel has vast experience performing tests for incineration and RCRA trial burns. Our larger staff enables multi-train, simultaneous testing through an entire process. WEST can provide a wide range of instrument testing. Our professionals routinely provide instrumentation services including relative accuracy audits, performance certification testing, compliance testing, equipment performance guarantees, maintenance programs, and quality assurance plans. Our mobile laboratories provide on-site data, reducing your downtime and decreasing your expense for testing.

WEST has tested almost every source category since 1978. Our personnel are year-round, full-time, educated and trained engineers, scientists, and technicians, who work as a team, dedicated to supplying the client with the best possible data in the shortest time frame. Office geography has aided our competitive abilities as WEST routinely provides crews throughout the Nation under competitive bid. WEST has provided incineration trial burns, destruction and removal efficiencies, toxic release inventories, diagnostic tests, RATAs (including hydrogen sulfide), as well as compliance tests in almost all of the 50 United States. Several test teams from WEST have performed Internationally, especially in Pacific Rim area.


WEST has the personnel, equipment, and experience to provide the numerous EPA methods, but also maintains a flexibility, along with knowledge, to develop methods specific to many needs. WEST has been providing in-house FTIR (Fourier Transform Infrared Spectroscopy) for over four years on a variety of sources throughout the United States. WEST has successfully completed numerous compliance tests using this technology. The WEST FTIRs are capable of providing inlet-outlet studies that provide immediate, on-site, real-time results in a variety of air sampling applications. It can measure a large number of compounds simultaneous in gas samples and therefore can take the place of multiple manual methods. This application is provided within WEST, not by outside contractor, ensuring the WEST quality. With this technology, our trained technicians can save you time and money in your air monitoring programs and analyses.

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Visit Our Website ... 913 Foster Road Casper, WY 82601...
Phone: (307) 234-5511
Toll Free: (800) 545-5711 Fax: (307) 234-8324

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