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An old earthen dam displayed signs of seepage. One state agency wanted to breach and rebuild it immediately, and another agency wanted to repair it. RETTEW was tasked with detecting areas of seepage, soil piping, or erosion of materials beneath the dam. Site conditions were grassy embankments, a concrete spillway, and suspected sheet piles from…
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Located in South Central Pennsylvania along the Susquehanna River, Lancaster County is more than 950 square miles, with a population of more than 507,000 residents throughout 60 municipalities. The County touts a diverse population with rich agricultural roots, a large Amish community, and a strong sense of history. In this role, RETTEW is responsible for…
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A tetrachloroethylene (PCE) plume is present in the groundwater beneath the northern portion of downtown Casper, the extents of which had been assessed throughout nearly 20 years of site characterization and data gathering. However, the exact source(s) of the groundwater impacts had not been identified. RETTEW collaboratively assisted the Wyoming Department of Environmental Quality (WDEQ)…
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Many Wyoming communities have brownfield properties that are abandoned or underutilized because of known or suspected environmental contamination. The Wyoming Department of Environmental Quality (WDEQ) has established the Brownfields Assistance (BA) program to support these communities by helping local governments investigate, clean up, and reuse brownfield properties. The BA program provides technical assistance through Phase…
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Go to NewsroomPenn State Baseball Player Named RETTEW 2023-24 Endowed Scholarship Winner
RETTEW is proud to announce the recipient of the 2023-24 RETTEW Endowed Scholarship for Intercollegiate Athletics at Penn…
Read MoreChesapeake Bay – EPA Settlement Agreement Effects on Pennsylvania’s NPDES Permittees
When the Chesapeake Bay Watershed Agreement was developed, it established goals and outcomes for restoring the Chesapeake Bay, its tributaries,…
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