(b) Performance standards. Each road must be located, designed, constructed, reconstructed, used, maintained, and reclaimed so as to -
- (1) Control or prevent erosion, siltation, and air pollution attendant to erosion, including road dust and dust occurring on other exposed surfaces, by measures such as vegetating, watering, using chemical or other dust suppressants, or otherwise stabilizing all exposed surfaces in accordance with current, prudent engineering practices.
- (2) Control or prevent damage to fish, wildlife, or their habitat and related environmental values.
- (3) Control or prevent additional contributions of suspended solids to streamflow or runoff outside the permit area;
- (4) Neither cause nor contribute, directly or indirectly, to a violation of applicable state or tribal water quality standards for surface water and groundwater, including, but not limited to, surface water quality standards established under the authority of section 303(c) of the Clean Water Act, 33 U.S.C. 1313(c).
- (5) Refrain from seriously altering the normal flow of water in streambeds or drainage channels.
- (6) Prevent or control damage to public or private property, including the prevention or mitigation of adverse effects on lands within the boundaries of units of the National Park System, the National Wildlife Refuge System, the National System of Trails, the National Wilderness Preservation System, the Wild and Scenic Rivers System, including designated study rivers, and National Recreation Areas designated by Act of Congress.
- (7) Use nonacid- and nontoxic-forming substances in road surfacing.