DCOS Staff

Francine Locke
Chief Sustainability Officer

Francine came to Delaware County in January 2021 to lead the sustainability efforts of the County.

Francine comes from the School District of Philadelphia where she served as the Director of Sustainability and Green Schools, and prior to that, Environmental Director. During her 16-year tenure with the District, her leadership in the development and implementation of GreenFutures, the District’s sustainability plan, received multiple awards including the US Department of Education Green Ribbon Award, the Pennsylvania Governor’s Environmental Excellence Award, and a Project Green Schools Award.

Francine earned a Bachelor of Science in Biology and a Master of Science in Environmental Health, both from Temple University. She is presently a Doctor of Health Science student at Drexel University where she is focusing her research on environmental exposures to vulnerable populations.


Rebecca Yurkovich
Sustainability and
Resilience Manager


Becca Yurkovich joined the Delaware County Office of Sustainability, in June 2022, serving as the Sustainability and Resilience Manager. Becca brings passion and experience to this role, previously serving as an Environmental and Community and Regional Planner in the Delaware County Planning Department, followed by three years as the Assistant Manager of Bethel Township, Delaware County, PA. Prior to accepting the role in the Office of Sustainability, Becca was actively involved with the Delaware County Sustainability Commission serving as a municipal representative for 2.5 years. Becca holds bachelor’s degrees in Environmental, Geographical, and Geological Sciences and Communication Studies from Bloomsburg University of Pennsylvania.


Ron Aquilino
Data and Systems


Ron, a native Philadelphian, enjoyed a 17-year career as an Employee Benefits Administrator prior to planting roots in Delaware County in 1985. Ron joined the Delaware County Planning Department in 1996 where he took on the task of developing, redesigning, and/or maintaining several Planning database vehicles and later overhauled the department website. In 2023, Ron redirected his efforts by joining the Delaware County Office of Sustainability where he refreshed their website and continues to use his digital data coordination skills to contribute to making County operations more sustainable and resilient to the effects of climate change.



Sue DePompeo
Assistant Director of
Sustainability Finance



Contact Us

  •   201 West Front Street,
         Media, PA 19063
  •   8:30AM - 4:30PM
           Monday - Friday
  •   610-891-4000
  • webmaster@co.delaware.pa.us

About Delaware County

Delaware County, presently consisting of over 184 square miles divided into forty-nine municipalities is the oldest settled section of Pennsylvania.

Read more