For details on our operations and service availability in response to COVID-19, please click here.


Joelie M. Zak, MSF, Senior EHS Consultant

Joelie Zak – MSF Vice President

Ms. Zak has over twenty (25) years of experience in working in the metal finishing industry as a technical consultant. She is currently co-owner of two companies, Scientific Control Laboratories, Inc. and Admiral Environmental Services. Her daily responsibilities include consulting on environmental and safety compliance challenges for metal finishers,  designing and trouble-shooting plating processes and wastewater pretreatment systems, consulting and completing all local, state and federal environmental regulatory reports, resolution of regulatory and environmental violations with city, state and federal agencies, and safety training and program development.

Ms. Zak has also served on all officer positions on the CMC Chapter board, while still called the Chicago Metal Finishers Institute (CMFI). She is CMFI Past President and is currently serving as a Technical Director to the CMFI. She is a national Past President of the NASF.  Ms. Zak has served on multiple NASF ( advisory committees including  serving as Chairman for the NASF Government Advisory Committee (GAC). Ms. Zak is a Past President of the national American Electroplaters and Surface Finishers (AESF)(2006-2007) and has

Ms. Zak is currently featured on the NASF’s  NFMRC website ( under the “Ask The Expert” for advice on the USEPA’s Toxic Release Report (Form R) and OSHA’s new Hexavalent Chromium standard. She has voluntarily testified on behalf of the industry for unscientific proposed regulatory standards by OSHA and USEPA.

Ms. Zak is a certified AESF Foundation trainer for the Introductory & Regular Electroplating Courses, Industrial Wastewater Treatment, Pollution Prevention, and EPA/OSHA Regulatory Compliance Courses. She regularly teaches courses regionally and nationally for her clients and AESF. She has presented multiple technical papers and served as a technical session chairman at the national NASF conventions. Ms. Zak regularly contributes environmental and technical articles to the NASF. She also enjoys regularly presenting technical papers and seminars on a national basis. She will be speaking in June 2014 at the NASF SUR/FIN trade show in Cleveland, OH on emergency contingency planning for metal finishing facilities.

Scientific Control Laboratories, Inc. accredited under A2LA, Nadcap and NELAP for a variety of metallurgical, chemical, environmental and safety testing services.



Eric L. Dangoy, MPH, EHS Consultant

Eric Dangoy – CSP Safety and Industrial Hygiene

Eric has 4+ years of working and academic experience in occupational safety and industrial hygiene. He is currently employed at Scientific Control Laboratories, Inc., as an EHS consultant specializing in OSHA compliance.  His daily responsibilities including helping clients manage worker health and safety needs as well as OSHA compliance.  He provides safety training and audits, industrial hygiene sampling, and guidance on health and safety engineering, administrative, and practice controls.  He also performs environmental stack testing for hexavalent chromium.

Mr. Dangoy also performs industrial hygiene monitoring to anticipate, recognize, evaluate and control workplace air and noise hazards. Eric also conducts employee training to reduce injury and help clients stay in compliance with OSHA requirements.  Training topics cover workplace safety, hazard communication, lockout tagout, lift truck operation, PPE and permit-requred confined spaces.

Stack testing is another service that Mr. Dangoy provides for hard chrome plating clients.  In addition to conducting the test, he also assists the client in developing effective stack test plans and writes the final report for submission to local and federal agencies.  Scientific Control Laboratories, Inc., performs stack testing through EPA Method 306A.

Mr. Dangoy is the Vice President of the Greater Chicago Chapter of the American Society of Safety Professionals (ASSP). He has been a part of the #IAMIH campaign created by the American Industrial Hygiene Association and is currently featured in the We Are Safety Professionals campaign to commemorate the transition of the ASSP from the American Society of Safety Engineers (ASSE). Through his dedication to the field as a student and early career professional, he has earned several awards and scholarships from both organizations.

Scientific Control Laboratories, Inc. accredited under A2LA, Nadcap and NELAP for a variety of testing services




Nadcap A2LA