2013-03-06_REVISION - C1992081 (6)

Home Browse Search

Pool bottom fauna collected at Site D -3 in May 1974 was not abundant. Eight taxa representing five orders of benthic invertebrates were captured using a dip net. The sample was dominated by baetid mayflies with lessor catches of limnephilid caddisflies, simulids, and tipulids. The November sample of pool. bottom habitat also produced few organisms; 10 taxa representing nine orders of benthic: invertebrates were captured. Amphipods and Ephemeropterans (baetid mayflies) represented over 60 percent of the relative abundance. A second sample of riffle habitat in November, 1974 revealed greater numbers and diversity (21 taxa from 10 orders) . The riffle sample was strongly dominated 68.4 percent relative abundance by caddisflies, and primarily the genus Hydropsyche. Certain species of invertebrates collected at Site D -3 are indicative of a biological community as defined by Rule 4.05.19(3). These include the Baetis spp., Gammarus lacustris, Empemeroptera, Leptophlebidae, Tricoptera, and Optioservus spp. Periphyton samples in May, 1974 at Site D -3 resulted in the collection of 15 species of diatoms. Surirella patella dominated the sample (68.2 percent relative abundance) . In the fall, both diatoms (17 identified species) and green algae (2 species) were collected. various species of Navicula accounted for 64.6 percent of the total periphyton at lower Dry Creek (Site D -3) in November, 1974. application to warrant issuance (and two subsequent renewals) of the original permit. For 0 Threatened or Endangered Species The original baseline fish and wildlife information contained in the application for Permit C -80 -003 was developed by 3R Corporation. No quantitative studies were made of fish or wildlife for their habitats within and adjacent to the Loadout permit area at that time, although consultation was conducted with the CDOW regarding the application. The 3R Corporation concluded that no Federally listed threatened or endangered species occur within to the proposed permit area due to lack of suitable habitat (3R or immediately adjacent .Corporation, 1977b). Although no quantitative studies were specific to the Loadout area, sufficient information on wildlife resources was contained in the original C -80 -003 application to warrant issuance (and two subsequent renewals) of the original permit. For example, the January 23, 1987 Proposed Decision and Findings of Compliance document for Permit C -80 -003 states at page 28 that "tile Division finds that the proposed activities will not affect the continued existence of endangered or threatened species or result in the destruction or adverse modification of their critical habitats." HGTI's permit application (C -92 -081), GHTI representatives In the process of preparing contacted the CDOW and USFWS to update information contained in the original application (C- 10 Revised 06108 RN-03