× ×

Who We Are

× ×

About EA

× ×


× ×



Assateague Island Remedial Investigation, Ocean City, Maryland

EA, under contract to the USACE–Baltimore District, performed a multi-phase, land-based and underwater Military Munitions Response Program remedial investigation at two former rocket ranges on the Assateague Island Formerly Used Defense Site (FUDS).  The former ranges comprised 6,660 acres that included the barrier island and the surrounding back bay and the Atlantic Ocean, now primarily managed by the National Park Service as a national seashore with a small portion of land managed by the State of Maryland as a state park.  Prior to the remedial investigation fieldwork, EA prepared a UFP-QAPP including Accident Prevention Plan, Geophysical Investigation Plan, Explosives Management Plan, and Environmental Protection Plan.  EA completed a Community Relations Plan and conducted Technical Project Planning meetings with stakeholders.  To ensure the highest probability of detecting MEC both along the shoreline and in the ocean given the dynamic nature of the seashore, the MEC investigation was conducted using two mobilizations, with underwater fieldwork performed in the fall and land-based work completed the following spring.

Digital geophysical mapping (DGM) was performed in several different environments, including the ocean and marshes and along the beaches, dunes, and wooded interior of the island.  The first phase of the investigation consisted of DGM transects across the shallow back-bay using a gradiometer suspended from a Jon-boat and DGM transects over the ocean floor using a deeper water vessel and a sled-mounted gradiometer.  Following data processing, a high resolution digital geophysical map was produced to help select anomalies for further investigation by UXO divers that reacquired and intrusively investigated the anomalies.  Over 17 linear miles of underwater DGM was collected and 149 targets of interest identified for intrusive investigation.  A high percentage of the underwater targets were located during dive operations demonstrating the detection and positioning capabilities of the underwater DGM system to successfully meet project objectives.  The second phase consisted of DGM transects across the island portion of the ranges using a Geonics EM61-MK2 deployed on a variety of platforms including person-portable, wheel-mounted, and towed behind a utility vehicle.  As for the underwater phase of the investigation, following data processing and analysis, DGM anomalies were reacquired and intrusively investigated by UXO technicians to help characterize the risk from MEC for park workers and visitors.  Vegetation removal was performed manually to allow DGM equipment to pass through the survey areas, while adhering to National Park Service policies to protect natural resources.  Over 134 linear miles of land-based DGM and 1,440 targets of interest were identified for intrusive investigation.  Survey areas included campgrounds, beaches and National Park Service maintenance areas, which required extensive coordination to prevent impacts to National Park Service operations.  The majority of the work was completed offseason to avoid National Park Service operations, as well as threatened and endangered species.

Overall, the DGM surveys met data quality objectives and successfully identified a target impact area at one of the rocket ranges, munitions debris (practice rockets) from suspected range disposal pits in the ocean, and confirmed that a second range was not used.  EA completed the USACE Risk Management Methodology and concluded that there were Unacceptable Conditions at MRS 01 and MRS 03.  Based on findings, no feasibility study was necessary, with significant cost savings to USACE.  EA prepared No Further Action Proposed Plan and Decision Document which underwent state, National Park Service, and public review and received concurrence for No Further Action.


Contact Us

EA Engineering, Science, and Technology, Inc., PBC headquarters


Office Locations

View Map



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