Directive No. 1253 of 1997 prescribing a temporary prohibition of the use of certain chemical injection substances for the tightening of water leaks in water supply systems.

This Directive of the State Agency for Pollution Control prohibits the use of products which contain acrylamide or methyl acrylamide for the tightening of water leaks. The prohibition does not apply to acrylamide polymers products which contain less than 1 percent acrylamide. The Agency may in certain special cases grant exemptions from the prohibition. (6 sections)