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California Representatives

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Coombs Hopkins

Covers: All counties north of San Luis Obispo, Kern and San Bernadino.

Coombs Hopkins Coombs Hopkins
2855 Mitchell Drive
Suite 215
Walnut Creek, CA 94598


Contact Information

Name: Dave Frost
Phone: 925-947-6733
Fax: 925-947-6784

Coombs Hopkins

Covers: All counties south of and including San Luis Obispo, Kern and San Bernadino.

Coombs Hopkins Coombs Hopkins
5411 Avenida Encinas
Suite 250
Carlsbad, CA 92008


Contact Information

Name: Bruce Zimmerman
Phone: 760-931-0555
Fax: 760-931-9115


Mid-Atlantic Biosolids Assoc.
University of Maryland -Baltimore
Baltimore, MD
November 18, 2014
Event Website

Indiana WEA
Indianapolis, IN
November 18 - 20, 2014
Event Website

New York WEA
Marriott Marquis
New York, NY
February 2 - 4, 2015 **Geneva NY Case Study**
Event Website

Class A Solids Success Story
Huntingdon Borough WWTP
Huntingdon, PA
WWTP wins award - click below to learn more!
Facility Details »

$109 / dry ton, Amazing!
In 2004, the City of Bowling Green, Ohio, installed Ohio's first TPS ThermAer Process expanding the plant capacity from 6 MGD to 10 MGD. This energy efficient process offered superior solids reduction and an odor-free operation. Doug Clark, Water Pollution Control Superintendent, calculated 2009 treatment costs at a remarkable $109 per dry ton. In addition, 38% total solids are coming off the centrifuge.

Speedway, IN - The TPS SNDR following anaerobic digestion shows exceptional results. Preliminary average results since May 2012 start up are: ammonia filtrate concentration of 14 mg/L plus an additional volatile solids reduction of 38%.

TPS INTRODUCES THE THERMSOLAER!!! ThermSolAer combines the proven technology of the ThermAer and the TerSolair - one of Europes' leading solar dryers - which can reduce or even elimniate biosolids management costs. This Class A, organically bound material, dried to high levels, is a valuable source of nutrients for local landscapers, golf courses and the community. The addition of an 'Augmented' Energy Recovery' process makes the ThermSolAer an energy efficient, sustainable-year round, green process. Benefits include an odor free dried cake, smaller footprint and a potential profit center. Contact us at 219 / 663 - 1034 to learn more.

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