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Our Staff





Harry Peña Ruiz founded Zimmetry Environmental Management Corp. in January 2002 soon after he conclude working as a consultant for one of the Industrial Hygiene firms working at the World Trade Center Site after the collapse of the towers in 2001.

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Due to his experience in sampling for air contaminants in demolitions, such as asbestos, lead, particulates and silica, he was invited to participate in the World Trade Center environmental emergency response after the terrorist attacks of 2001. Additionally, he provided trainings and assisted in the evaluation of suspected anthrax threats. Mr. Peña formerly worked as Operations Manager for a local environmental firm from 1995 to 2001.

Mr. Peña holds a Master of Science Degree in Environmental Planning from the Metropolitan University in San Juan, Puerto Rico. Currently, Mr. Peña also teaches at the Atlantic OSHA Training Center and is a faculty member of the School of Environmental Affairs of the UMET Environmental Management Master’s Degree Program. Since 2005 Mr. Peña is an approved instructor for the ASTM Phase I & Phase II Environmental Site Assessment Training Courses. He is an EPA / PR Environmental Quality Board accredited Lead-based Paint Inspector & Risk Assessor; EPA / PR Environmental Quality Board accredited Asbestos Inspector; Certified Environmental Inspector (CEI) and Certified Mold Specialist (CMS) by the Environmental Assessment Association; in addition he has been certified as Air Systems Cleaning Specialist (ASCS) by the National Air Duct Cleaners Association; and as Mold Remediation Specialist (MRS) and Water Restoration Specialist (WRS) by the International Restoration Institute, among numerous others certifications.

Mr. Peña is a member of the International Society of Indoor Air Quality and Climate (ISIAQ); member of the Indoor Air Quality Association (IAQA); and member of the US Green Building Council’s Puerto Rico Chapter.

Given his vast experience and professional background, Mr. Peña has served as a plaintiff and defense expert witness in legal cases related to industrial hygiene and mold.

In 2011, Mr. Peña was selected as one of the Ana G. Méndez University System’s Distinguish Ex-alumni for his professional achievements and community services.


Onell González, PhD(c), CIEC, LEED AP O+M



Onell González-Martínez holds a MSc Magna Cum Laude in Green Building & Sustainable Development of the San Francisco Institute of Architecture in California, US, where it is currently a PhD candidate; and a BSc in Environmental Science from the University of Puerto Rico in Rio Piedras; he also took graduated courses in Environmental Planning at the Graduated School of Planning of the UPR. Mr. González possesses the USGBC;s LEED AP O+M credential; he is an EPA/PREQB accredited Lead-based Paint Inspector; EPA/PREQB accredited Asbestos Inspector; Council-certified Indoor Environmental Consultant; and Certified Mold Assessor. He also receives numerous hours of continuing education in HVAC, Green Building, Indoor Environmental Quality, Building Science, Mycology and Industrial Hygieneon a regular basis.

Mr. González has managed hundreds of environmental and occupational exposure assessments, at a wide range of buildings and industry types, for the government, the Navy, the Army, leading architecture and engineering firms, federal agencies, pharmaceutical and manufacturing industries, commercial and private building owners, and others. He is responsible for oversee and conduct all Industrial Hygiene & Indoor Air Quality projects, as well as support and sometimes oversee other Environmental Building Assessments. His responsibilities include but are not limited to: indoor air quality consulting and sampling for Green Building projects using USGBCs LEED Rating System, IAQ & industrial hygiene investigation and monitoring, mold assessment, sick building assessment, lead based paint inspection, and asbestos containing building materials inspection including recurrent AHERA Regulatory Re-inspection & Audit for Asbestos Operations & Maintenance Plans. Mr. González has also offered awareness-level asbestos training as part of the AHERA regulations compliance requirements.

Mr. González collaborated as a GBCI;s Education Provider and Course Submitter on behalf of the USGBC- Caribbean Chapter, served as Chair of the Education Committee and as LEED v4 Point of Contact for the Chapter, and participated in the LEED 2012 (LEED v4) Regionalization Task Force. In addition, he is a member of the International Society of Indoor Air Quality and Climate (ISIAQ) and member of the Indoor Air Quality Association (IAQA). As a Green Building educational speaker, he has created and offered multiple green building lectures, and has been the first local speaker to offer LEED 2009 & LEED v4 Green Associate & Credential Study Courses at professional associations and higher education institutions in PR. He has facilitated instructor-led workshops of the USGBC’s Education Curriculum and was admitted as a USGBC Faculty member in 2013. Mr. González was also accepted as lecturer at the Professional Studies and Continuing Education Division of the University of PR in Rio Piedras to offer the LEED Green Associate & Credential Study Course. In addition, he has been retained since 2018 by the LEORON Professional Development Institute, with offices in the United Arab Emirates, the Kingdom of Saudi Arabia, Europe and Central Asia, to offer the said LEED study course in the Middle East & North African countries as one the institute’s expert international trainers.

Dilia Rosado, MS



Mrs. Rosado possesses a Bachelor of Science Degree in Environmental Engineering and a Master of Art Degree in Engineering Management from the Polytechnic University in San Juan, Puerto Rico. Mrs. Rosado is currently in her “Engineer in Training” pathway, pursuing her professional title as Environmental Engineer. She is an EPA / PR Environmental Quality Board Accredited Lead-based Paint Inspector and an EPA / PR Environmental Quality Board Accredited Asbestos Inspector. She has also received OSHA’s General Industry 30-hours training.

Mrs. Rosado’s main duties are focused in maintaining office services by organizing office operations and procedures; preparing payroll; controlling correspondence; designing filing systems; reviewing and approving supply requisitions; and assigning and monitoring clerical functions. She is responsible for overseeing and leading work teams mostly while developing office tasks pertaining to ongoing projects. Mrs. Rosado is also partially responsible for planning and maintaining work systems, procedures, and policies that enable and encourage the optimum performance of work staff and other resources within Zimmetry’s business unit.

Additional professional responsibilities include, but are not limited to: assist in conducting environmental surveys and developing corresponding reports along technical services regarding asbestos containing building materials and lead-based paint investigations. Mrs. Rosado also supports field work related to industrial hygiene assessments for indoor air quality & mold, in addition to ASTM E 1527-13 standard Phase I and II Environmental Site Assessments.

Miguel A. Peña



Miguel Peña is a Licensed Professional Draftsman with over 30 years of experience in a profuse variety of building typologies and systems. Mr. Peña is in charge of all project’s CAD drawings including as-built, environmental assessment finding locations, moisture mapping drawings, contamination extent drawings and other related tasks. Additionally, he is an EPA / PR Environmental Quality Board Accredited Asbestos Inspector.

Alicia García, MSc



Alicia García Justiniano possesses a BSc Cum Laude in Biology from the University of Puerto Rico, Mayaguez Campus, and an MSc degree in Biology from the same university. She has developed a strong and diverse academicals background in mycology topics including Medical Mycology, Economics Mycology and Industrial Mycology, and has collaborated in various investigations including research of Fungal Infections at the Mayaguez Medical Center with a public health (biostatistics) scope. In addition, Mrs. García is an EPA/PR Environmental Quality Board Accredited Asbestos Inspector and receives numerous hours of continuing education and professional development in HVAC, Indoor Environmental Quality, Building Sciences, and Industrial Hygiene on a regular basis. She is also a current member of the Golden Key Honor Society.

Mrs. García worked as a Medical Mycology Laboratory Instructor at the Biology Department of the  University of Puerto Rico in Mayaguez (UPRM), were she taught laboratory techniques such as identification of common fungi, tease mounts and slide cultures, and has been a research mentor of a vast number of undergraduate students at the UPRM. She was also a program’s assistant preparing, organizing and presenting educational material for high school biology teachers at The Alliance for the Strengthen of Mathematics and Science Partnership (AFAMaC), a collaborative partnership between UPRM, the PR Department of Education and schools from districts in the western part of PR.


Mrs. Garcia currently works as an industrial hygiene technician and biologist. Her professional responsibilities include, but are not limited to: assist in conducting environmental and industrial hygiene surveys including indoor air quality sampling for Green Building projects using USGBC & LEED Rating System, IAQ & industrial hygiene investigation and monitoring, mold assessment, sick building assessment, lead based paint inspection, and asbestos containing building materials inspection. Mrs. García also assists in developing correspondent reports for the said environmental and industrial hygiene assessments. 





He earned a BS degree in Geology from the University of Puerto Rico, Mayagüez Campus and is a Register Environmental Professional. Mr. Morales has over 20 years of experience in technical, coordination and management of environmental issues and environmental assessment projects. He is President of Test Environmental, a well-known environmental firm specialized in consulting and service in environmental projects such as: Assessments, sampling, geo-drilling, compliance plans, and others. Prior to founding Test Environmental he worked for the Puerto Rico Environmental Quality Board as environmental technician and inspector, and for Chevron Corporation where he supervised and coordinated different projects assignments and evaluation of field activities to determine the necessity of remedial action plans and operation of recovery systems.

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