OCR Text |
Show Alternative C: Fund research on the origin and longevity of bacterial contamination This alternative would result in detailed field and laboratory studies to determine the sources of pollution and the progress of contamination over the course of a season. An intensive sampling program would be required to achieve the objectives of such a study. Alternative D: Phase in management actions to control shoreline contamination ( preferred alternative) A wide range of management actions exists that would benefit shoreline water quality. Some examples include the following, ordered from least to most intrusive: • Place signs on problem beaches warning of potential health hazards. • Increase enforcement of existing regulations prohibiting the discharge of sewage. This measure would pertain to houseboats and cruisers with sewage holding tanks. Boats could be inspected, either on a routine or an incident basis, to determine whether they are properly fitted to discharge only into designated pumpouts. This action would affect private craft the most because the rental fleet is standardized with approved, closed- sewage systems. • Institute educational programs emphasizing the need for sanitation and providing information on proper sanitation practices for Lake Powell recreation. • Designate swimming- only zones at certain of the heavily used beaches experiencing water quality problems. The water quality standards are use- specific; this alternative would provide areas where only swimming would be permitted, making it easier to meet water quality standards for swimming. The zones could be established using buoys and signs ( or blockages) to prevent boats and motor vehicles from entering, thereby reducing the possible sources of contamination. This action would be taken at locations where boat and/ or on- shore vehicle use of the beach is high. Their restriction would substantially reduce the population of beach users. • Promulgate a regulation requiring all watercraft to have either closed- system sewage holding tanks or portable toilets aboard while on Lake Powell. The inspection for these items would become a part of regular procedures that include inspecting for personal flotation devices and fire extinguishers. 31 |