Barry Obrocki

Dr. Mohan Khare
President & CEO

Will Brewington
Organic Lab Manager

Jim Milberger
QA/QC Manager

Geoff Maloney
GC/MS Chemist

Barry Obrocki
GC Specialist

Habib Bajwa

Envirosystems, Inc.
Suite B102
9200 Rumsey Rd.
Columbia, MD 20145

(410) 964-0330
(410) 740-9306 fax

Mr. O'Brocki is a lead GC chemist. He has over 10 years experience in the environmental analytical field. His experience includes GC, GC/MS, ECD, FID, TCD, PID, and HPLC. He has metals analysis experience, General chemistry analysis, organic extractions, sample preparation, and sample clean-up techniques. Mr. O'Brocki has knowledge of and experience in regulatory agency requirements for organic analysis by GC using US EPA CLP protocols, SW-846 method, and water methods 500, 600 series. He is responsible for organic gas chromatographic analysis of water, soil, sediment, and biota at Envirosystems. He is also responsible for data interpretation and reporting including electronic data deliverables. He has experience in analytical methods development and instrument trouble shooting.

Professional Experience

Gas Chromatography. Analyzed environmental samples using GC/MS and GC with a variety of detectors in accordance with CLP EPA protocols. (CLP, Sw-846, 600 and 500 series). Performed analysis for organic compounds in a variety of matrixes. (air, water, soil, oil, sludge, etc.) Responsibilities include GC analysis of pesticides, PCBs and PCB congeners, herbicides, PAH, BTEX, permanent gases, alcohols, and petroleum hydrocarbons. He has extensive experience in interpretation of gas chromatographic data.


90 credits towards BS in Chemistry; 142 credits overall: Framingham State, MA (Chemistry), Catonsville Community College (Electrical Engineering, Electronics)

Previous Experience

Envirosystems, Inc., Columbia, MD
   GC Specialist


Target Environmental Services, Jessup, MD


EA Laboratories, Sparks, MD


Accutest Laboratories, Marlborough, MA


Hoechst Celanese Corperation, Somerville, NJ


Accutest Laboratories, Marlborough, MA


Princeton Testing Laboratories, Princeton, NJ


Gascoyne Laboratories, Dundalk, MD


FMC Corporation, Fairfield, MD