Office of Sustainability


Contact Us
P.O. Box 839966
San Antonio, TX 78283-3966

Physical Address
1400 S. Flores, Unit #2
San Antonio, TX 78204





  • Douglas Melnick Email Douglas Melnick
    Chief Sustainability Officer

Douglas Melnick, ISSP-SA, CNU-A
Chief Sustainability Officer

Carmen Almaguer
Executive Secretary

Christopher Wilcut, CEM
Energy Management Senior Analyst

Cynthia Dittrich
Department Fiscal Administrator

Eloisa Portillo-Morales, MBA, EIT, CNU-A, LEED-GA
Sustainability Planning Manager

Golda M. Obinzu, PE, CEM, LEED AP BD +C
Energy Management Manager

Julia Murphy
Sustainable Transportation Program Manager

Lisa Lin
Energy Management, Senior Analyst

Wendell Hardin
Corporate Sustainability Manager

Iris Gonzalez
Climate Equity Fellow

Joy Rathman
Ambassador Intern

Valeria Alvarez
Ambassador Intern

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Featured News
No-Idling Policy

No-Idling Policy
Directive for all city vehicles More

Ozone Public Health Assessment

Ozone Public Health Assessment
View the full report More