Notes
Sea-Tac Airport noise hotline call data report for First Quarter 1990, including a line graph of monthly calls per month from 1986–1990 (in thousands), noting the 1987 ‘Scatter Test’ spike to approximately 3,400 calls in July. Pie charts show percentage of complaints by operation type — Departures to North (57.2%), Arrivals from North (28.6%), Departures South (10.0%), Ground Noise (1.5%), Unusual A/C Event (1.5%), Arrivals from South (1.0%), Combination (0.2%) — and comments received on Sea-Tac Hotline by type: ‘Too Loud’ (57.5%), ‘Too Frequent’ (22.2%), ‘Low Flying’ (16.5%), ‘Off Track’ (2.8%), ‘Vibration’ (0.8%), ‘Other’ (0.2%). Noise Complaint Call Summary by Zip Code table lists total calls and individual calls for 40 zip code areas including Beacon Hill/Mt Baker (98144, 377 total), West Bellevue/Medina (98004, 338), Mercer Island (98040, 227), Madrona (98122, 208), Northgate (98115, 177), Des Moines (98198, 80), Federal Way (98003, 20), and others in the Seattle–Tacoma region.