Ensure that residues of manganese in finished potable water are limited to no more than 0.05 mg L-1.
A filtration plant residual of less than 0.25 mg L-1 (ppm) is needed to prevent pink discoloration of drinking water.
Do not use in facilities discharging directly or indirectly to estuarine or marine environments. Do not discharge effluent containing this product into lakes, streams, ponds, or public waters unless in accordance with the requirements of a National Pollutant Discharge Elimination System permit and the permitting authority has been notified in writing prior to discharge.
Do not discharge effluent containing this product to sewer systems without previously notifying the local sewage treatment plant authority. For guidance contact the State Water Board or Regional Office of the U.S. Environmental Protection Agency.