1. Geophysical Hydrographic Survey for Dam Fish Ladder Construction

    A hydroelectric plant on a major river sought to install a new fish ladder for an endangered species. Construction of the ladder required founding the concrete walls directly on bedrock. However, because of years of sedimentation above and below the dam, the thickness of the sediment and bedrock conditions were unknown. RETTEW was hired to…

  2. Easton Wastewater Treatment Plant Operations Support

    The wastewater at the Easton Wastewater Treatment Plant is difficult to treat. The City was unable to identify the causes behind periodic upsets to the process, resulting in issues with operations and solids retention in the secondary clarification process. These issues had led to violations and fines by the Pennsylvania Department of Environmental Protection (PA…

  3. Hermitage Air Quality Permit Consulting

    The Pennsylvania Department of Environmental Protection (PA DEP) issued the Hermitage Municipal Authority (HMA) an air quality plan approval permit for the installation and operation of the Authority’s combined heat and power (CHP) unit, startup boiler, and emergency generator. Subsequently, regular stack emissions testing and data records of daily operations were required to ensure air…

  4. University Area Joint Authority Nutrient Project for Stormwater

    The University Area Joint Authority (UAJA), as part of its ongoing effort to manage water quality in the Spring Creek Watershed, selected RETTEW to implement its program to invest in green infrastructure for the reduction of nutrient-based pollution resulting from non-point sources. Inclusive of urban stormwater and agricultural pollution, UAJA is investing in innovative techniques…

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Employee Update

BJ Batterson Promoted to Vice President of Facilities and Construction

RETTEW is pleased to announce the promotion of BJ Batterson to Vice President of our Facilities & Construction…

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Paradise Township Sewer Authority Breaks Ground on Wastewater Treatment Plant Expansion

On May 5, the Paradise Township Sewer Authority broke ground on its recently funded wastewater treatment plant expansion…

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