20080978 Ver 1_WRC Comments_20080625

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® North Carolina Wildlife Resources Commission
MEMORANDUM
TO: Cyndi Karoly, 401 Oversight and Express Permit Unit
N.C. Division of Water Quality
FROM: Shari L. Bryant, Piedmont Region Coordinator ??LA.???e•,
Habitat Conservation Program
DATE: 25 June 2008
SUBJECT: Pre-Construction Notification for Davidson Water, Inc., Raw Water Structure and Intake,
Davidson County, North Carolina. DWQ ID No. 08-0978
Biologists with the North Carolina Wildlife Resources Commission (NCWRC) have reviewed the
subject permit application and we are familiar with the habitat values of the area. Our comments are
provided in accordance with provisions of the Clean Water Act of 1977 (as amended), Fish and Wildlife
Coordination Act (48 Stat. 401, as amended; 16 U.S.C. 661-667d), and North Carolina General Statutes (G.S.
113 -13 1 et seq.).
Davidson Water, Inc. proposes to construct a new raw water intake structure. The proposed project
includes 145 linear feet of permanent impact and 200 linear feet of temporary impact to Yadkin River. The
purpose of the project is to increase capacity to serve future upgrades to the water treatment plant facility.
Yadkin River is located in the Yadkin-Pee Dee River basin. There are records for the federal species
of concern and state endangered brook floater (Alasmidonta varicosa) and the state threatened creeper
(Strophitus undulatus) in Yadkin River.
Should the permit be issued, we recommend the following conditions be incorporated into the permit
to further minimize impacts to aquatic and terrestrial wildlife resources.
1. Intake structures should use passive screens with openings not to exceed 1 centimeter (3/8-inch)
and with a maximum intake velocity of 0.5 fps (feet per second).
2. Intake structures should be marked to reduce hazards to navigation during and after construction.
3. Concrete is toxic to aquatic life and should not be allowed to come in contact with surface waters
until cured.
4. Specialized efforts and techniques should be implemented to reduce sediment runoff from
construction activities. Excessive silt and sediment loads can have numerous detrimental effects on
Mailing Address: Division of Inland Fisheries • 1721 Mail Service Center • Raleigh, NC 27699-1721
TilPnhnnP- (919)707-0??0 • Far! (9191707-00?R
Page 2
25 June 2008
Davidson Water Intake
DWQ ID: 08-0978
aquatic resources including destruction of spawning habitat, suffocation of eggs, and clogging of
gills of aquatic species.
Thank you for the opportunity to review and comment on this project. If we can be of further
assistance, please contact our office at [phone].
cc: John Thomas, USACE