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System Optimization, Operation, and Maintenance

“Systematic site review by a team of independent technical experts, at any phase of a cleanup process, to identify opportunities to improve remedy protectiveness, effectiveness and cost efficiency, and to facilitate progress toward site completion” – EPA’s working definition of optimization 

TREE Logo Graphic

To identify for our clients, and to consult with them about, their optimization needs for mature or recalcitrant remediation sites and the reduction of site management life cycle costs, we have developed a unique logical framework for analyzing the sites of each client that we call TREE.  TREE incorporates industry-standard statistical and numerical multi-media transport models with environmental visualization techniques relying on risk management principals, consensus building among stakeholders and a wealth of EA previous experience/lessons learned to assess three tiers of optimization that can be implemented in either a phased or tandem approach and applies each of these variables to the individual needs of each client.

  • Tier 1 optimizations are designed to eliminate or significantly reduce environmental liability by achieving site closure/regulatory case closure. Ideally, actions implemented under this tier will restore the site to unrestricted use as soon as possible through aggressive remedial actions or, alternately, eliminate or permanently immobilize source and reduce contamination footprint to attain remedial goals over the entire site in an accelerated timeframe.
  • Tier 2 optimizations are designed to reduce long-term or maintain current environmental liability and reduce capital and recurring O&M cost. These actions typically involve the replacement, retrofit, or implementation of new remedial technology that increases remedy efficiency/ effectiveness, lowers remedy cost and O&M cost.  In many cases, alternative remedial components that require less energy generate less residual waste streams can be considered. Where feasible, passive, green, and in situ remediation methods may be viable components.
  • Tier 3 optimizations are designed to reduce O&M costs while maintaining protectiveness at mature and highly complex or recalcitrant sites where Tier 1 and Tier 2 options have been implemented to the extent practical.  Lower long-term O&M or de minimis life cycle costs can be achieved when done correctly through reduced sampling and monitoring that can yield measurable results and long-term cost savings.

EA developed TREE to provide an individualized framework within which EA can work with each client to identify and advise each client about the optimization needs of their mature or recalcitrant sites and how to reduce the life cycle costs of site management.


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Office Locations

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745 W 4th Avenue
Suite 425
Anchorage, AK 99501
Mike Jones P: 907-334-3909 Email Mike


3544 International Way
Fairbanks, AK 99701
Travis Hines P: 907-646-0210 Email Travis



700 Research Center Blvd
Suite 2221
Fayetteville, AR 72701
Matthew Frigon, PhD P: 479-575-2136 Email Matthew



555 University Avenue
Suite 182
Sacramento, CA 95825
Sheena Styger P: 916-604-4365 Email Sheena



7995 E Prentice Ave.
Suite 206E
Greenwood Village, CO 80111
Nathan Jones P: 303 590-9140 Email Nathan



131 Continental Drive
Suite 203
Newark, DE 19713
Kathy Fox P: 302-467-3025 Email Kathy


Warner Robins

108 Byrd Way
Suite 600
Warner Robins, GA 31088-9199
Tommy Bruhn P: 478-308-7375 Email Tommy


1001 Army Drive
Suite 103
Barrigada, GU 96913-1402
Billy Janasak P: 671-646-5231 Email Billy



615 Piikoi Street
Suite 515
Honolulu, HI 96814
Chip Brown P: 808-589-1455 Email Chip



444 Lake Cook Road
Suite 18
Deerfield, IL 60015
Joe Vondruska P: 847-945-8010 Email Joe


Corporate Headquarters

225 Schilling Circle
Suite 400
Hunt Valley, MD 21031
Ian MacFarlane P: 410-584-7000 Email Ian

Ecotoxicology & Biology Labs

231 Schilling Circle
Hunt Valley, MD 21031
Michael Chanov P: 410-584-7000 Email Michael


1311 Continental Drive
Suite K
Abingdon, MD 21009
Scott Dobson P: 410-671-6051 Email Scott

Ocean Pines

11200 Racetrack Road
Unit A101
Ocean Pines, MD 21811
Darl Kolar P: 410-641-5341 Email Darl



10321 E. Grand River Ave.,
Suite 600,
Brighton, MI 48116
Arthur Peitsch P: 810-206-3042 Email Arthur



54 North Last Chance Gulch
Suite 14
Helena, MT 59601
Catherine LeCours P: 406-936-0022 Email Catherine



221 Sun Valley Blvd
Suite D
Lincoln, NE 68528
Dale Schlautman P: 402-476-3766 Email Dale


7836 Wakeley Plaza
Omaha, NE 68114
Craig Johnson P: 402-817-7664 Email Craig

New Mexico


320 Gold Avenue, SW
Suite 1300
Albuquerque, NM 87102
Jay Snyder P: 505-224-9013 Email Jay

New York


P.O. Box 144
25 Western Avenue, 2nd Floor
Marlboro, NY 12542
Melanie Dina P: 845-565-8100 Email Melanie


82-B Creamery Road
Oswego, NY 13126
Sarah Nelson P: 315-342-1419 Email Sarah


Washington Station
333 West Washington Street, Suite 300
Syracuse, New York 13202
Bob Casey P: 315-431-4610 Email Bob

Rhode Island


301 Metro Center Blvd
Suite 102
Warwick, RI 02886-3440
Ron Mack P: 401-736-3440 Email Ron



405 State Highway 121 (Bypass)
Building C, Suite 100
Lewisville, TX 75067
Roger Place P: 972-315-3922 Email Roger


11550 Cypress N Houston Rd
Cypress, TX 77429
John Bonner P: 832-912-4038 Email John

San Antonio

13750 San Pedro Ave.
Suite B10
San Antonio, TX 78232
Brian O'Ferrall P: 210-546-2129 Email Brian


Virginia Beach

4429 Bonney Road
Suite 430
Virginia Beach, VA 23462
Chris Penny P: 757-693-6014 Email Chris



2200 6th Avenue
Suite 707
Seattle, WA 98121
Jen Martin Bouchard P: 401-287-0376 Email Jen

EA Satellite Residential locations (Contact 1-800-777-9750)

Dunedin, FL

Rick Hanoski

North Salem, IN

Matthew Bowman

Dover, NH

Amy Hunt

Spencerport, NY

Caryn Kiehl-Simpson

Lubbock, TX

Danny Leaks