Mussel and Crayfish Survey – Duke Energy / Jacobs – Cincinnati, Ohio

The project involved construction of a 13-mile natural gas pipeline (20-inch diameter). The Ohio Power and Siting Board (OPSB) required documentation to indicate that no freshwater mussel and Sloan’s crayfish (Orconectes sloanii) impacts would occur at stream crossings and demonstrate the rationale for this determination. During the field work along the corridor, perennial streams, intermittent streams, and ephemeral streams were identified that needed to be surveyed. To make a supported indication that no impacts would occur for freshwater mussels or the Sloan’s crayfish, STONE assessed each identified stream, using different levels of effort appropriate to each flow regime. STONE was subsequently retained to complete an additional freshwater mussel survey for another transmission line crossing.

I just wanted to reach out to both of you & all of Stone for your outstanding effort, due diligence & professionalism on this project.

I’m certainly no ESA expert, but I was blown away by the detail contained in your report, especially given the tight timeframe that was required for delivery.

Please know that your work at Walnut Grove is very much appreciated by everyone here at POAH.

For the record, I am now a huge fan of Stone Environmental, and I hope we will continue our working relationship well into the future.

Doug Dempsey, POAH