Chlorine Residuals at NTMWD Treated Water Ground Storage Reservoirs_2018, 2017 maintenance periods March 29, 2018 Chlorine-Residuals-at-NTMWD-Treated-Water-Ground-Storage-Reservoirs_2018-2017-maintenance-periods-1 chlorine-residuals-at-ntmwd-treated-water-ground-storage-reservoirs_2018-2017-maintenance-periods-2 Download Document