ARM 17.30.508
ARM 17.30.508. SPECIFIC RESTRICTIONS FOR GROUND WATER MIXING ZONES
Cite as Mont. Admin. R. 17.30.508
(1) Mixing zones for ground water are to be limited and comply with the following water quality standards:
(a) Human health based ground water standards must not be exceeded beyond the boundaries of the mixing zone.
(2) No mixing zone for ground water will be allowed if the zone of influence of an existing drinking water supply well will intercept the mixing zone.