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Rule Title: CRITERIA AND STANDARDS FOR MPDES
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Department: ENVIRONMENTAL QUALITY, DEPARTMENT OF
Chapter: WATER QUALITY
Subchapter: Montana Pollutant Discharge Elimination System (MPDES) Standards
 
This is an obsolete version of the rule. Please click on the rule number to view the current version.

  Effective Date: 12/8/1989  
 
  History Notes: History: 75-5-304, MCA; IMP, 75-5-304, 75-5-401, MCA; NEW, 1989 MAR p. 2060, Eff. 12/8/89; TRANS, from DHES, 1996 MAR p. 1499.  
 
  Rule File: access file
 

Other rule versions existed in ARM on or after March 31, 2007

MAR Notices Effective From Effective To History Notes
17-411 10/24/2020 Current History: 75-5-304, MCA; IMP, 75-5-304, 75-5-401, MCA; NEW, 1989 MAR p. 2060, Eff. 12/8/89; TRANS, from DHES, 1996 MAR p. 1499; AMD, 2011 MAR p. 2131, Eff. 10/14/11; AMD, 2020 MAR p. 1879, Eff. 10/24/20.
17-322 10/14/2011 10/24/2020 History: 75-5-304, MCA; IMP, 75-5-304, 75-5-401, MCA; NEW, 1989 MAR p. 2060, Eff. 12/8/89; TRANS, from DHES, 1996 MAR p. 1499; AMD, 2011 MAR p. 2131, Eff. 10/14/11.
12/8/1989 10/14/2011 History: 75-5-304, MCA; IMP, 75-5-304, 75-5-401, MCA; NEW, 1989 MAR p. 2060, Eff. 12/8/89; TRANS, from DHES, 1996 MAR p. 1499.
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