Since the ALUC does not have any published land use guides for this distance lets make a "best guess" on the plan. The ALUC will likely be using the CNEL map at the top of the page for a guide but the California Airport Land Use Handbook has some sample static maps.
I have changed the runway color to red for clarity.
There are 6 zones on the chart. The closest is Zone 4 which stops at 10,000 feet.
Remember the stadium is at 13,000 feet.
If the air traffic pattern is changed by the FAA we would still be around Zone 6.
You can click on the chart for a larger version.
Here is another reference to support using the noise contour as a safety tool:
"Accident safety zones should be more focused on noise contours
Accident Safetey zones were perceived to be too restrictive and should be revised to be based on the 50-55 DNL noise contours. This was also noted by FAA staff as well as by many survey respondents."
(Page 40)Washington State Dept of Transportation Aviation Division Airport Land Use Compatibility Program Evaluation.June 2005 http://www.wsdot.wa.gov/NR/rdonlyres/FD617ED4-C590-4059-92DE-F45709844FA6/0/05APLandUseCompProgEvalAnaly.pdf
(Page 50) has a longer explanation in the "Summary & Recommendations" section.
So our "Best Guess" of the stadium site being unsafe is looking likely to be correct.
