Groundwater quality shall be exempt from the groundwater quality criteria of Env-Or 603.01 if:
- (a) The groundwater is within a groundwater discharge zone permitted in accordance with Env-Wq 402;
- (b) The groundwater is within a groundwater management zone permitted in accordance with Env-Or 607;
- (c) The groundwater is contaminated solely with salt and other de-icing chemicals applied for winter road maintenance;
- (d) The groundwater contamination resulted from backwash from a public water treatment facility that is subject to Env-Wq 402; or
- (e) The groundwater contamination is not the result of human operations or activities.
Source. (See Revision Note at chapter heading for Env-Or 600) #8812, eff 2-1-07; ss by #10831, eff 6-1-15; ss by #14419, eff 11-4-25, EXPIRES: 11-4-35