Daphne officials estimate 500 ,000 gallons of raw sewage may have spilled into d'olive creek near alligator alley last night. It happened during a lightning storm yesterday afternoon. A lightning strike shut off power to the Daphne sewage treatment plant's emergency alert system. Utility officials were quick to get the word out. General Manager Danny Lyndall says the second call he made last night was to the environmental group Mobile Bay Keeper a group that tracks and informs the public of any spills into Mobile Bay. Utility crews were hard at work today installing a new emergency alert back up system. The new one will be solar powered. "Solar powered and battery backup and it will send an alert over a cellular digital network to let us know if there is a high level in one of the basins," said Lyndall. The system that should have alerted "after hours" crews failed last night. Older computers were already in the process of being upgraded when the power outage happened. "The alert system didn't fully reset. The alarms were working the plant but none of our operators received an alert to let us know anything was wrong," said Lyndall. It's not certain how much of the five hundred thousand gallons of sewage that spilled ended up in nearby waters. For the utility any amount is too much. "When you look at that amount when it reaches D'Olive creek and mobile bay it's a small percentage of the total amount of water that are in those two water bodies but it's still a lot to us," said Lyndall. Most of the sewage will dissipate in the next 24 to 48 hours. It's best to not swim or fish in these waters for a couple of days. Any seafood should be cooked thoroughly.