During dry weather, the traps in your drains or sinks can dry out allowing gases to be released into your home. This often seems to happen with basement drains. Try adding some water to all of your drains. If the odor does not go away, If it is during normal business hours, please call the Wastewater Treatment Plant at 317-852-1114 or the Utility Billing Office at 317-852-1102. You will need to actually speak to a person to ensure that your sewage issue is addressed - do not leave a message. If it is after hours, please call 911 and they will dispatch the appropriate personnel. Be prepared to provide your name, telephone number, and address.