Another part of the project expected to draw attention is Algonquin’s request to do deep borings in Beverly Harbor and Collins Cove, an inlet in Salem, where it will explore the feasibility of a technology known as horizontal directional drilling, in which pipes are laid deep under a body of water.
As part of the exploratory borings, Algonquin Gas plans to use drill rigs and divers and take rock core samples as deep as 100 feet, according to the filing.
Coincidentally, horizontal directional drilling is the same technology National Grid has rejected as too costly and too difficult to repair for a controversial cable replacement project in this general area of the city that is currently under review. The utility has to replace high-voltage electrical cables that run between substations at the power plant and on Canal Street.
As part of that project, which is not directly connected to Footprint Power’s project, National Grid investigated the possibility of running cables under Salem Harbor. A contentious public meeting on the project was held Wednesday night.
In the next few days, Algonquin Gas, or a firm working for Algonquin, is expected to send out notices about the exploratory borings and its tentative plans. They will be mailed to residents on Pierce Avenue, Planters Street, East Collins Street, Webb Street, Settlers Way and other roads near the proposed route, according to the filing.
If approved, the gas pipeline project would start in 2015, a local official said.
Tom Dalton can be reached at firstname.lastname@example.org.