- October 20, 2025
- Employee Update
RETTEW is pleased to announce the promotion of David DiGioia, PE, to Transportation Market Lead, effective October 18, 2025. David joined RETTEW in March 2025 as a Senior Engineer in...
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- October 3, 2025
- Employee Update
RETTEW is pleased to announce Bill Carlisle has joined RETTEW as Regional Practice Director for Facilities & Construction (F&C). Bill brings over 20 years of leadership experience in manufacturing and...
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- September 19, 2025
- Employee Update
We are pleased to announce Samantha (Sam) Bombara has been promoted to a Natural Sciences (NS) Team Lead, working from our Pittsburgh office. Sam has been consistent in her dedication...
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- August 18, 2025
- Employees
This summer, a group of RETTEW employees and their guests had the unique opportunity to tour one of the most iconic landmarks in the United States – the White House....
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- August 14, 2025
- Community
Julie Bard Ziegler, GeoEnvironmental Project Manager at RETTEW, once again volunteered her time and expertise at the Lancaster County Youth Conservation School (LCYCS), a week-long environmental education program designed to...
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- August 5, 2025
- Employee Update
We are proud to announce the promotion of Ryan Rettew, PLS, to the role of Survey/GIS Team Lead, effective July 28. Ryan is a highly respected and dedicated member of...
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- July 21, 2025
- Industry News
The Pennsylvania Department of Environmental Protection (PA DEP) recently issued a letter requesting oil and gas operators to submit geographic information system (GIS) data for their gathering pipelines. If you...
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- July 21, 2025
- Industry News
Effective July 14, 2025, the U.S. Department of Labor has introduced significant updates to OSHA’s penalty guidelines, offering expanded relief and new incentives for small businesses. These changes aim to...
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Stormwater and flooding are growing concerns for communities and developers alike. RETTEW has delivered innovative, sustainable solutions across Pennsylvania and beyond. Here are some standout projects that demonstrate how RETTEW...
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- July 15, 2025
- Internships
By Matt Wallence As a rising fifth year landscape architecture student at Penn State, my internship at RETTEW has been an incredible opportunity to apply the knowledge I’ve learned in...
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