The Virginia Department of Environmental Quality (DEQ), in a Sept. 5 filing submitted to the Virginia State Corporation Commission, provided recommendations concerning Virginia Electric and Power’s (Dominion) proposed Lanexa-Northern Neck Line #224 230-kV Transmission Line Partial Rebuild project.
For instance, the company should conduct an on-site delineation of all wetlands and stream crossings within the project area with verification by the U.S. Army Corps of Engineers.
The filing also noted that Dominion is seeking approval for a certificate of public convenience and necessity to conduct a partial rebuild of four separate segments of its existing Lanexa-Northern Neck Line #224 line, located in King and Queen, King William, and New Kent counties.
The purpose of the project is to comply with mandatory NERC standards by increasing transmission capacity and replacing aging infrastructure. The filing added that in four separate segments, the project proposes to remove and replace:
- Nine structures and foundations spanning the Pamunkey River and crossing adjacent tidal marshlands (Pamunkey River Rebuild); this segment runs 1.7 miles through King William and New Kent counties on the existing Line #224 that crosses the Pamunkey River about 6.5 miles west-northwest of West Point, Va.
- Seven structures and foundations spanning the Mattaponi River and crossing adjacent tidal marshlands (Mattaponi River Rebuild); this segment stretches 1.3 miles through King William and King and Queen counties on the existing Line #224 that crosses the Mattaponi River about 9.6 miles northwest of West Point
- Two double-circuit “COR-TEN” lattice structures and two adjacent wood H-frame structures that support a single transmission circuit and foundations on the existing 230-kV line #224 crossing Interstate 64 in New Kent County west of the intersection of I-64 and Route 3 (I-64 Rebuild); this segment stretches for about 0.5-mile in New Kent County on the existing Line #224
- Remove and replace one double-circuit “COR-TEN” lattice structure that supports one transmission circuit for Line #224 and another for Line #2016 and foundation with two double deadend (DDE) 2-pole structures and foundations (Diascund Rebuild); this segment is located within the watershed of the Diascund Creek Reservoir, which is jointly managed by the City of Newport News and the Virginia Department of Game and Inland Fisheries (DGIF)
Discussing natural heritage resources, the filing noted that the Virginia Department of Conservation and Recreation’s (DCR) Division of Natural Heritage’s (DNH) Biotics Data System (Biotics) documents the presence of natural heritage resources within two miles of the project area. However, due to the scope of the activity and the distance to the resources, DCR does not anticipate that the project would adversely impact those natural heritage resources.
According to DCR DNH, the current activity would not affect any documented state-listed plants or insects, provided erosion and sediment controls are strictly adhered to during the project, the filing added.
To minimize adverse impacts to the aquatic ecosystem as a result of the proposed activities, DCR recommends the implementation of, and strict adherence to, applicable state and local erosion and sediment control/storm water management laws and regulations, the filing said.
Among other things, the filing also noted that according to DGIF, the Mattaponi and Pamunkey rivers have been designated threatened and endangered species waters due to the presence of federal endangered Atlantic sturgeon. To minimize the adverse impacts of linear utility/road project development on wildlife resources, DGIF offers certain recommendations, including to avoid and minimize impacts to undisturbed forest, wetlands, and streams to the fullest extent practicable, the filing said.