City of Casey issued the following announcement on March 31.
The Water Department will flush hydrants the week of April 8th. Customers may temporarily experience discolored water, low pressure, and/or plugged screens at the faucet heads during this process. Letting the water run briefly should clear up this issue. Your cooperation is appreciated while work is in progress. Please call 932-4885 with any questions.
Original source can be found here.