Environmental Design Service

50 Jay Dee Lane
Birdsboro, PA 19508





About Us





Contact Us

About Us

Environmental Design Service was started in 1987 as a consulting business initially focused on onsite wastewater system design becoming one of the leaders in that field in Pennsylvania having designed over 10,000 onlot systems of all types.  It has expanded into related fields but continues to offer the same high quality, economical services for a variety of clients. 

The staff includes professionals in the onlot wastewater field, soil science, and wetlands, with a combined total of 45 years of experience, and is supported by a courteous office administrator who has been with us for 18 years.

Greg Marshall  

B.S., Environmental Consultant/Certified SEO

Greg has more than 25 years experience in the onsite wastewater field, first serving as a Certified Sewage Enforcement Officer (SEO), for a private company serving over 15 municipalities in Berks, Lancaster, Schuylkill, and Lebanon Counties.  He founded Environmental Design Service in 1987 and has conducted thousands of soil tests and designed over 10,000 systems of all types.  He also serves as vice president of Pennsylvania Onsite Wastewater Recycling Association (POWRA), is on the board of Pennsylvania Association of Sewage Enforcement Officers (PASEO), and is a member of the PA Sewage Advisory Committee.  In addition, he is the volunteer Trail Maintenance Coordinator for the Thun Trail section of the Schuylkill River Trail.



Ross Wolford

B.S.,  Soil Scientist


Ross has over 20 years experience in Pennsylvania Onsite Sewage Disposal Program.  As a local agency Sewage Enforcement Officer (SEO), for over 15 years, he has experience in all aspects of planning, permitting, inspections, and enforcement.  With 15 years experience as a local agency SEO, he has tested, permitted, and inspected hundreds of onlot septic systems.  As an ARCPACS certified Soil Scientist, he is able to site newer technologies for onlot sewage disposal on more challenging sites.  Ross also has Institute for Wetland & Environmental Education & Research (IWEER) training in wetlands delineation.


Environmental Design Service  ~  50 Jay Dee Lane  ~  Birdsboro,  PA  19508
  ~  610-582-0605
~ enviro@ptd.net