OCR Text |
Show Table 4. Proposed shoreline and marina bacterial monitoring for Glen Canyon National Recreation Area. Objective Frequency Sites ( No. of samples) Parameters Routine monitoring of popular beach areas for compliance with water quality standards, and monitoring of boat effluents. Every other week Every other month Wahweap Swim Beach ( 3) Wahweap Marina ( 2) Wahweap pumpout ( 1) Lone Rock Beach ( 3) Antelope Point ( 2) Bullfrog Marina ( 2) Bullfrog Swim Beach ( 3) Farley Canyon ( 3) Moqui Canyon ( 3) Oak Canyon ( 2) Davis Gulch ( 2) Fecal coliform bacteria, temperature, pH, turbidity, specific conductance, dissolved oxygen Spot- checks at other sites on occasion. River above Lees Ferry, including the lower Paria River; Dirty Devil River; San Juan River; and the Colorado River above Hite. Sampling of the latter segment will occur at sites at the inflow, at rafter camps in Imperial or Gypsum Canyons, and in one or two flowing tributaries such as Dark Canyon and Clearwater Canyon. Giardia will be sampled only in the two Colorado River segments and the Escalante drainage. The purpose of this work is to determine whether the organism is present, and if it is, the extent of its distribution in these areas. The surveys will be logistically organized to deliver bacterial samples to the laboratory at the NRA within six hours of collection. This will require sampling by helicopter in the Escalante and San Juan drainages. Giardia samples will be delivered within 36 hours to a laboratory equipped to handle the analysis and will be analyzed under contract. A high- volume pump to sample for Giardia will be leased or obtained on loan. IV. A. 3. Water resources as habitat for fish. A monitoring study is proposed for the Escalante River drainage using suitability parameters for fish habitat. Instream flows would be measured seasonally on the river and several prominent tributaries; a fisheries biologist would be consulted to design a study of habitat factors such as food base and populations of aquatic species. 67 |