My daughter's wedding is scheduled at a local park amphitheater & they require a permit for ANY sound amplification. We are just planning to use a small portable pa system with a wireless microphone, but we need a permit. On the permit application, we need to list and notify all residents within 500 feet of the property - how do we find names and addresses of everyone within 500 feet of the park? Help on where to find this information is very much appreciated!