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Part 150 studies, also known as Airport Noise Compatibility Planning, are conducted by local airports to generate noise contour maps that identify homes within the 65 or greater DNL, which are then considered for sound insulation. https://services5.arcgis.com/YTApDBs0YanBdxkq/arcgis/rest/services/Land_Use_Restrictions2/FeatureServer/0", "geometryType": "esriGeometryPolygon", "sourceSpatialReference": { "wkid": 102659, "latestWkid": 2237, "xyTolerance": 0.003280833333333333, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -17791300, "falseY": -41645400, "xyUnits": 3048.0060960121928, "falseZ": 0, "zUnits": 1, "falseM": 0, "mUnits": 1 }, "spatialReference": { "wkid": 102659, "latestWkid": 2237, "xyTolerance": 0.003280833333333333, "zTolerance": 0.001, "mTolerance": 0.001, "falseX": -17791300, "falseY": -41645400, "xyUnits": 3048.0060960121928, "falseZ": -100000, "zUnits": 10000, "falseM": -100000, "mUnits": 10000 }, "copyrightText": "Hillsborough County Aviation Authority\nGIS Department\nTony Mantegna | Tampa International Airport | Senior Manager of Planning\nPhone: (813) 781-8289 | Email: TMantegna@TampaAirport.com\nBrooke Nix, CM | Tampa International Airport | GIS Applications Analyst\nPhone: (813) 697-6587 | Email: bnix@TampaAirport.com\nemail: itsgti@tampaairport.com\naddress: SkyCenter One - 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