The operational Sound hourly must be equivalent to the sound levels resulting from facility operations , this we would need to limited to 75 dBA (7 ) Under FERC the project managers must identify all noise sensitive areas such as schools , hospitals , or residences . Hence , before putting up any windmills we 'd need to do a land survey (8 ) FERC stipulates the use of the day-night sound level and limits attributable to a facility . So the day-night sound level can have 10...











SUBJECTS

