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Minnesota state water rules

Proposed water rules and rule changes

Current Minnesota state water rules

These rules listed below link directly to the Minnesota Office of the Revisor of Statutes and are the most current version available. Note: To order a paper copy of the rules listed below, contact Minnesota's Bookstore at 651-297-3000 or 800-657-3757.

Variances

The MPCA may grant variances to the water quality standards in Minnesota Rules Chapter 7050 and the effluent discharge restrictions in Chapter 7053.  The MPCA must list the variances granted under these two rules by October 1 of each year.  The following table identifies the variances in National Pollutant Discharge Elimination System/State Disposal System (NPDES/SDS) permits issued by the MPCA as of October 1, 2009.  The table includes the facility granted the variance, the rule from which the variance was granted, the water affected, the year granted, and any restrictions that apply in lieu of the rule requirements.

Active Variances from Minnesota Rules Chapters 7050 and 7053 (Updated October 2010)

PermitFacility name
Parameter(s)Year granted
Receiving water
Minn. RuleAlternate requirements
MN0068063 Buffalo Lake Energy LLC Boron, Hardness, Salinity, Sodium, TDS, SpecCond, Sulfate 10/6/2006 Center Creek 7050.0223 subp.3, 7050.0224 subp.2, 7050.0224 subp.3 Boron 2860 ug/l, hardness 520 mg/l, salinity 2290 mg/l, sodium 90% meq/l, TDS 3061 mg/l, SpecCond 4340 umhos/cm, WET limit 1 TUc
MN0042579 Cliffs Erie - Dunka Mining Area Toxicity 7/25/2000 Dunka River 7053.0215 subp.1 Chronic WET 3/yr, bio. and fish mont., treatment optimization study
MN0023973 Litchfield WWTP CBOD, Unionized Ammonia, DO 1/28/1992 Jewitts Creek 7053.0235, 7050.0220 subp. 3, 7050.0220 subp. 3 CBOD limit of 10 mg/L until 2/1/12 when 5
mg/L takes effect, ammonia limits of 2.1
and 4.3 mg/l (June - Sept. and Apr. - May),
stream monitoring, permit reissued June
2009
MN0020141 Luverne WWTP CBOD, Unionized Ammonia 3/26/1985 Rock River 7053.0235, 7050.0220 subp.3 CBOD limit of 25 mg/L, ammonia effluent
limit of 10 mg/L for Jun-Sep., stream
monitoring, variances reviewed and
renewed w/permit in May 2008
MN0031127 Maple Hill Estates MHP No Discharge Zone 5/19/1975 South Fk Rush Creek 7053.0265 Variance reviewed and renewed in May 2011
MN0024031 McKinley WWTP Phosphorus 5/23/1989 Unnamed creek to Embarrass River 7053.0255 subp.5    Permit reissued April 12, 2007
MN0067687 Mesabi Nugget Delaware LLC & SDI Bicarb, hardness, TDS, Spec Cond 8/30/2005 Second Creek 7050.0224 subp.2, 7050.0223 subp.3, 7050.0224 subp.2, 7050.0224 subp.2 Bicarb 445 mg/l, 831 mg/l hardness, 1818 mg/l TDS, 2425 umhos/cm SpecCond
MN0065668 Nerstrand DO 3/1/2002 Ditch to Little Cannon River 7050.0222 subp.4 Effluent limit of 5 mg/L daily minimum and receiving water monitoring required. Reissued March 12, 2007.
MN0044946 United Taconite LLC: Thunderbird Mine pH  6/22/1999 Ditch to Manganika Creek 7050.0224 subp.2 pH limit 9.3
MN0040665 Southern Minnesota Beet Sugar - Renville Bicarb, chloride, sodium%, SpecCond, TDS 12/29/2004 County Ditch 45 7050.0223 and 7050.0224 Surface water monitoring, Biomonitoring, Dissolved Minerals Reduction Program
MN0049786 WLSSD Fecal coliform 5/19/1994 St Louis River (St Louis Bay) 7053.0215 Disinfection required when fecal coliform
analysis for WTP intakes exceeds 100
MPN/100 mL

Additional rules and regulations information

 

Last modified on Thursday, April 05, 2012 14:43
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