Perchlorate

Waste perchlorates are regulated as hazardous waste because they
exhibit the characteristic of an oxidizer. (MN Rule. 7045.0131,
sub.3). Ammonium perchlorate if in solution and stored in an
aboveground storage tank would be regulated and if stored in an
underground storage tank would be regulated as a hazardous
substance. However, currently there are no risk-based soil,
ground water, or surface water criteria developed at least at the
state level. Some states, however (i.e. California has
nonpromulgated Advisory Level [AL] of 4 ug/L for perchlorate),
and USEPA has received peer review comments on their draft
toxicological review and assessment document (provided in
1/02 for public comment) available on their NCEA web site.