Louisiana Water Company in New Iberia has issued a boil order for the entire system.
They're also asking customers to conserve as much water as possible.
"Due to excessive water usage, and leaks, caused by the extremely low temperatures we have experienced, we are requesting all of our customers not use excessive amounts of water, for the near future," a release from the company says. "High demand for water could cause the system to have to be shut down to recover. If you have a broken pipe, please turn off your water or call the customer service line to have us turn it off. As a precaution we are issuing a boil water advisory for the entire water system. If the water pressure serving you drops below 20 psi, we encourage you to boil your water prior to consumption."