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1. During the time that the birds are trying tobuild or occupy their nests (generally, between April and August, depending on the geographic location), potential nesting surfaces should be monitored at least once every three days for any nesting activity, especially where bird use of structures is likely to cause take. It is permissible to remove non-active nests (without birds or eggs), partially completed nests, or new nests as they are built (prior to occupation). if birds have started to build any nests, the nests shall be removed before they are completed. Water shall not be used to remove the nests if nests are located within 50 feet of any surface waters. 2. If an active nest becomes established (i.e., there are eggs or young in the nest), all work that could result in abandonment or destruction of the nest shall be avoided until the young have fledged or the nest is unoccupied. Construction activities that may displace birds after they have laid their eggs and before the young have fledged should not be permitted, if the project continues into the following spring, this cycle shall be repeated. When work on the structure is complete, all netting shall be removed and properly disposed of. Stressor. Noise Conservation Goal: Prevent the increase in noise above ambient levels during the nesting bird breeding season. Conservation Measure 9: Minimize an increase in noise above ambient levels during project construction by installing temporary structural barriers such as sand bags Conservation Measure 2: Avoid permanent additions to ambient noise levels from the proposed project by using baffle boxes or sound walls. Stressor Chemical Contamination Conservation Goal: Prevent the introduction of chemicals contaminants into the environment. Conservation Measure T: Avoid chemical contamination of the project area by implementing a Hazardous Materials Plan. For more information on hazardous waste and how to properly manage hazardous waste, see the EPA Hazardous Waste website. Conservation Measure 2: Avoid soil contamination by using drip pans underneath equipment and containment zones at construction sites and when refueling vehicles or equipment. Conservation Measure 3:Avoid contaminating natural aquatic and wetland systems with runoff by limiting all equipment maintenance, staging laydown, and dispensing of fuel, oil, etc., to designated upland areas. Conservation Measure 4: Any use of pesticides or rodenticides shall comply with the applicable Federal and State laws. 1. Choose non-chemical alternatives when appropriate 2. Pesticides shall be used only in accordance with their registered uses and in accordance with the manufacturer's instructions to limit access to non-target species. 3. For general measures to reducing wildlife exposure to pesticides, see EPA's �Parc 4