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:;'J "~-'I . (~~\ \ j .,J ,-,:':, ::-.) ..1 -,;.j (,'.1 .~~ , ..i ',-.; '.:; . , (Station 13+00). The prdb&lc1 m~ ~tlet was calibrated and readings from the probe were checked against actual laboratory tests. The monitoring system at the Parshall Flume has been taken out of service and prepared as a backup in the event of a malfunction at the outlet. The quantity of flow will continue to be measured at the Parshall Flume. At a special meeting on June 26, 1997, the Operating Committee requested the U.S. Fish and Wildlife Service (Service) and Bureau of Land Management develop a plan to apportion a reduced quantity of mitigation water that would be acceptable to both. This request was made as a result of the Project's inability to deliver the full amount of priority one water due to biofouling and other problems with many of the salvage wells. The reduction of mitigation deliveries to 4,060 af was proportional to the estimated annual project production. Mitigation water deliveries to the Blanca Wildlife Habitat Area included the annual water right of 800 af and a Colorado Division of Wildlife transmountain substitution delivery of 713 af. In cooperation with the U.S. Geological Survey's (USGS) Pueblo Colorado Office, Reclamation is continuing to review quality control of its observation well network. Maintenance Preventive maintenance and repair activities included work at salvage and elevation well sites; upkeep of canal structures and pumping plants; new electrical installations; aquatic weed control; ice removal; herbicide application along canal right-of-way; shelter belt equipment repair; and repair of vehicles and heavy equipment. Lightning, ice, biofouling, and weeds are continual maintenance problems. Methods to curtail excessive algae growth along the canal are being sought. The potential methods of control are the use of an algicide or a product called Pond Saver which is a bacterial biological control agent. Both methods are being investigated and control implementation will begin soon. . Transmitters were surgically implanted in twelve grass carp to monitor migratory habits. In areas where concentrations of carp have eliminated most aquatic vegetation, floating fish feeders filled with alfalfa hay have been installed in addition to two Sweeney pellet feeders to keep them alive. High concentrations of dissolved nitrogen in the water at the north end of the canal may be why the grass carp migrate to the over-crowded south end ofthe canal. Biofouling continues to be a problem at many salvage wells. Several chemicals have been used in an attempt to improve water production. These chemicals are Calcium Hypochlorite, Sodium Hypochlorite, Glycolic Acid, Phosphoric Acid, and Sulfamic Acid. 3