If wetlands, springs, or streams occur in the vicinity of the project, we ask that you be aware of potential impacts project activities may have on these areas. Discharge of fill material into wetlands or waters of the United States is regulated by the U.S. Army Corps of Engineers (Corps) pursuant to section 404 of the Clean Water Act of 1972, as amended. We recommend you contact the Corps’ Regulatory Section 300 Booth Street, Room 2103, Reno, Nevada 89509, (775) 784-5304 or 321 North Mall Drive, Suite L-101, St. George, Utah 84790-7314, (435) 986-3979 regarding the possible need for a permit.
Springs on or near the project site are sensitive to a wide variety of activities and may be occupied by rare aquatic organisms (macroinvertebrates) that may be affected by the proposed action(s). Recent studies have found approximately 100 species of aquatic macroinvertebrates in springs and springbrooks throughout the western United States, including springsnails, caddisflies, beetles, true bugs, and crustaceans. There is concern for these species because some are narrowly distributed and, in many cases, their habitats have become highly degraded. Many springs in Nevada have not yet been surveyed to determine if they are occupied by macroinvertebrates. For those which have been surveyed, gravel substrate, flowing high quality water, and minimal disturbance are believed to be important habitat components to maintain viable populations of these species. Measures should be considered to protect the springs and macroinvertebrates during project planning and implementation.