Evaristo Cruz-Environmental Management Office Director-Is responsible for the administration and operation of the Tribe's environmental protection and natural resources conservation programs. He is also responsible for developing, implementing  and administering the General Assistance Program in accordance with U.S. EPA Grant guidelines. As well as managing other departmental grant programs. Mr. Cruz holds a Bachelor's of Science degree in Psychology with a double minor in both Chemistry and Biology. He is also a degree candidate for a Masters in Environmental Science. He has extensive experience as a Solid Waste Coordinator from 2002-2008 for Rio Grande Council of Governments.

Jose Lopez-Environmental Assistant-  is a Tribal member of Ysleta del Sur Pueblo and has worked in the Environmental Office for the past 6 years. He is responsible for coordination of logistics for field operations and has been instrumental in managing both the Hueco Tanks property and Chilicote Ranch property. He also assists in regulatory reviews, and compliance efforts. He is responsible for the care and maintainence of the Tribal horses and all recycling efforts. He is actively pursuing a Bachelor's of Science degree in Biology. Jose is also currently the youngest Tribal Councilman ever elected onto Tribal council. 

Estela Gomez-Environmental Clerk-is a Ysleta del Sur Pueblo Tribal member. Her duties in the office include typing and/or reproducing correspondence, reports, forms and other material generated by the Environmental Director. She also maintains the current recordkeeping systems. Her work experience includes sitting on the Higher Education Committee and was an active member of the National Indian Education Association for 5 years. In addition Estela attended Southwestern Indian Polytechnic Institute in Albuquerque, NM for two years where her studies were in the fields of Business Administration/Contemporary Indian Issues and worked for the Albuquerque Area indian Health Service.        

GIS Staff:   

Beau Barela-GIS Specialist-Mr. Barela holds a Bachelor's of Science degree in Geographic Information Science from Texas State University at San Marcos and also has had work experience as a GIS Mapping Technician for DrillingInfo and also was employed by the Guadalupe Groundwater Conservation District as a GIS Technician.

Andrea Everett-GIS Assistant- Ms. Everett is a Ysleta del Sur Pueblo Tribal member and holds a Bachelor's of Science degree in Environmental Science (Geoscience Concentration) from the University of Texas at El Paso. She also worked as the Environmental Management Offices' Intern until being awarded the position of GIS Assistant.