- (a) Where multiple treatment units are provided, the piping configuration must allow each treatment unit to be taken out of operation without disturbing the treatment process.
- (b) Do not allow a bypass between raw or partially treated water lines and lines or basins containing filtered water.
Added at 18 Ok Reg 1612, eff 6-1-01
Amended at 25 Ok Reg 2304, eff 7-11-08