UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, IL

Transcription

1 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 5 77 WEST JACKSON BOULEVARD CHICAGO, IL JEP 2 4 2QU Rebecca J. Flood, Assistant Commissioner Minnesota Pollution Control Agency 520 Lafayette Road North St. Paul, Mimiesota REPLY TO THE ATTENTION OF: WW-16J Dear Ms. Flood: The U.S. Environmental Protection Agency has conducted a complete review of the revisions to Appendix A and Appendix B ofthe Minnesota Statewide Mercury Total Maximum Daily Load (TMDL) received by EPA on April 15, Appendix A was revised to include 48 new lake and river assessment unit mercury impairments, and changes or corrections to 3 river and 6 lake assessment units. Amendments to Appendix B include an updated list of point sources which contribute mercury loads to the waterbodies identified in Appendix A. Based on this review, EPA has determined that no changes are being made to the original elements of the TMD L as approved on March 27, 2007, and subsequently revised on April 3, 2008, September 28, 2010 and May 31, This decision addresses amendments to waters included in Appendix A and facilities included in Appendix B of the 2014 Revision to the Minnesota Statewide Mercury TMDL. EPA has determined that the revisions to Appendix A and Appendix B meet the requirement of Section 303(d) ofthe Clean Water Act, 33 U.S.C. Section 1313(D), and EPA's implementing regulations of 40 CFR Part 130. This approval addresses the revisions to Appendix A and Appendix B. The statutory and regulatory requirements, and the TMDL's compliance with these requirements, are described in the enclosed decision document. We wish to acknowledge Minnesota's effort in submitting this revision to the Statewide Mercury TMDL. If you have any questions, please contact Mr. Peter Swenson, Chief of the Watersheds and Wetlands Branch, at Sincerely, j,^tmka G. Hyde Director, Water Division wq-iw4-01y Recycled/Recyclable Printed with Vegetable Oil Based Inks on 100% Recycled Paper (100% Post-Consumer)

2 Enclosure cc: Katrina Kessler, MPC A Miranda Nichols, MPC A Celine Lyman, MPC A

3 TMD L Decision Document TMDL: 2014 Revisions to the Minnesota Statewide Mercury Total Maximum Daily Load Approval Date: September 24, 2014 Background On March 27, 2007, the United States Environmental Protection Agency approved the northeast (NE) and southwest (SW) regional mercury Total Maximum Daily Loads (TMDLs) submitted by the State of Minnesota. 1 For purposes ofthis Decision Document, the northeast and southwest regional TMDLs approved by EPA on March 27, 2007, will be referred to as the 'original TMDL'. The original TMDL addresses waterbodies not meeting the aquatic consumption designated use due to exceedances of the numeric mercury water column water quality standard (WQS) or elevated mercury concentrations in fish tissue. The original TMDL established a load allocation (LA) for the primary nonpoint source, atmospheric deposition. Additionally, a wasteload allocation (WLA) was calculated for point sources, including electricity generators, wastewater treatment facilities, and industrial discharges (e.g., pulp & paper mills and refineries). An explicit margin of safety (MOS) was established for the southwest region's TMDL while an implicit margin of safety was used for the northeast region's TMDL. The mercury target for both the northeast and southwest regional TMDLs is a mercury concentration of 0.2 milligram per kilogram (mg/kg) measured as mercury concentration in fish tissue. This target is a surrogate measure for the numeric water column water quality standard of 1.3 nanograms per liter (ng/l) for the Lake Superior Basin, and 6.9 ng/l for the rest of the State. 2 The original TMD L calculated reduction factors necessary to achieve the target fish tissue mercury concentration for a standard size top predator fish. Reduction factors were determined by using the target fish tissue mercury concentration of 0.2 mg/kg and the 90 t h percentile fish tissue mercury concentrations in the standard size top predator fish. The highest fish tissue mercury concentration, estimated from the 90 t h percentile fish tissue calculations, was mg/kg. Therefore, only waterbodies that have fish tissue mercury concentrations greater than 0.2 mg/kg or equal to or less than mg/kg are addressed by the original TMDL. Appendix A of the original TMD L identifies lake and river assessment units that are addressed. The Minnesota Pollution Control Agency (MPCA) is continually monitoring and assessing surface waterbodies to protect the integrity of Minnesota's surface water resources. Through its water quality monitoring strategy, MPC A collects and assesses new fish tissue mercury concentration data. This new data is considered during the State's two year integrated reporting cycle pursuant to Sections 305(b) and 303(d) ofthe Clean Water Act (CWA). There are three possible outcomes ofthe State's assessment of new fish tissue data. A copy of EPA's March 27,2007 approval is included in this decision as Attachment 1. 1 Refer to "Guidance Manual for Assessing the Quality of Minnesota Surface Waters for the Determination of Impairment, 2 305(b) Report and303(d) List", Minnesota Pollution Control Agency, 2014 Assessment Cycle, page 24, for specific descriptions of Minnesota's Integrated Report categories. For purposes of this decision document this guidance manual is referred to as the '2014 assessment methodology'. 1

4 TMp L Decision Document 2014 Revision to the Minnesota Statewide Mercury TMD L Approval Date: September 24, A lake or river assessment unit is determined to be addressed by the original TMDL, ifthe fish tissue mercury concentration is greater than 0.2 mg/kg or equal to or less than mg/kg. The lake or river assessment unit is then added to Appendix A of the Statewide Mercury TMDL. 2. A lake or river assessment unit is placed in Category 5 of Minnesota's Integrated Report if the fish tissue mercury concentration is greater than mg/kg and the water quality data meets all criteria described in MPCA' s 2014 'Guidance Manual for Assessing the Quality of Minnesota Surface Waters for the Determination of Impairment, 305(b) Report and 303(d) List" for an impaired waterbody. 3. A lake or river assessment unit is placed in Category 2 of Minnesota's Integrated Report, or Category 3 due to insufficient data. MPC A analyzes and assesses new fish tissue mercury concentration data every 2 years and revises the waterbodies included within Appendix A of the Minnesota Statewide Mercury TMDL. Waterbodies included within Appendix A of the original TMDL have been revised three times. EPA approved the first revision to the original TMDL's Appendix A on April 3, 2008 (addressing the updates to Appendix A of the original TMDL from the 2008 integrated reporting cycle) and referred to as the '2008 Revision'. EPA approved the 2010 revision to Appendix A on September 28, 2010 (the '2010 Revision') and the 2012 revision to Appendix A on May 31, 2013 (the '2012 Revision'). A copy of the most recent approval, for the 2012 Revision, is attached to this Decision Document as Attachment Revisions to the Minnesota Statewide Mercury Total Maximum Daily Load On April 15, 2014, EPA received amendments to Appendix A ofthe original TMDL for review and approval. These revisions will be referred to as the '2014 Revision'. EPA is approving revisions to Appendix A from the original TMDL based on information submitted by the State of Minnesota in April The 2014 Revision was completed using water quality data collected and analyzed for the 2014 integrated reporting cycle. As was the case for the 2008, 2010 and 2012 Revisions, the State did not make any revisions to the TMD L targets, reduction factors, loading capacities, allocations, reduction goals or any other element of a TMD L loading capacity established in the original TMD L for the 2014 Revision. Identification of Waterbodies for the 2014 Revision The 2014 Revision includes additions to Appendix A of lake and river assessment units with fish tissue mercury concentrations greater than 0.2 mg/kg or equal to or less than mg/kg. Lake and river assessment units which have measured fish tissue mercury concentrations greater than 0.2 mg/kg or equal to or less than mg/kg, are addressed by the original TMDL and listed in Appendix A. MPC A collected and analyzed mercury fish tissue concentration data during the 2014 assessment cycle and submitted a list of waterbodies with mercury fish tissue concentration data greater than 0.2 mg/kg or equal to or less than mg/kg. In its April 15, 2014 Letter, MPCA asked EPA to approve these revisions to the Statewide Mercury TMDL. EP A considered all readily available data and information shared by MPC A during its review of lake and river water quality data for the 2014 Revision. 2

5 TMD L Decision Document 2014 Revision to the Minnesota Statewide Mercury TMD L Approval Date: September 24, 2014 The State has identified 48 new lake and river assessment units (Table 1 of this Decision Document) for inclusion in Appendix A. 3 EP A reviewed submitted mercury fish tissue concentration data from MPC A and determined that the waterbodies submitted by MPC A are acceptable to be added to the 2014 Revision of the Statewide Mercury TMDL. The 2014 Revision was reviewed using the same EP A internal review protocols which were completed for the 2008 Revision, 2010 Revision and the 2012 Revision. The 2008, 2010, 2012 and 2014 revisions were based upon mercury fish tissue data submitted by MPCA within their integrated report submittal package to EPA. EPA Assessment: EP A finds the State's decision to include 48 new lake and river assessment units to Appendix A is reasonable and appropriate. Waterbodies added to Appendix A were identified by the State as having fish tissue mercury concentrations greater than 0.2 mg/kg and equal to or less than mg/kg. As discussed in the Background section of this Decision Document, waterbodies having fish tissue mercury concentrations within this range are consistent with the reduction factors used to develop the original TMDL. Table 1 ofthis Decision Document identifies the 48 lake and river assessment units which are being added to Appendix A of the original TMDL, as revised in 2008, 2010 and Other Changes to Appendix A for the 2014 Revision EP A encourages States to review previously assessed waterbodies during each integrated reporting cycle. During this review, the State may determine a more appropriate way to segment a waterbody to reflect tributary impacts and morphological features. MPC A defines the boundaries of a river assessment unit as those which typically extend, from one significant tributary to another or from the headwaters to the first significant tributary and is typically less than 20 miles in length. The river may be further divided into two or more assessment units when there is a change in the use classification (as defined in Minn. R. ch. 7050) or when there is a significant morphological feature such as a dam, or a lake within the river. 4 In addition to identifying new lake and river assessment unit impairments for inclusion in the revised 2014 Appendix A, the State also identified the following changes and corrections (Table 2 of this Decision Document) to existing lake and river assessment units already included in Appendix A. Corrections to assessment units: Removed lake assessment unit (AUID) for Clear Lake from Appendix A. Changed the lake AUID to Clear Lake for the 2014 Revision to Appendix A. Splitting of assessment units: Removed lake AUID for Long Lake from Appendix A and split the lake into two new lake AUIDs, (North Lons Lake) and (South Lons Lake). Both of these lake AUIDs were added to the 2014 Revision to Appendix A. Removed river AUID from Appendix A and split the river assessment unit for the Rum River (Trout Creek to Madison/Rice St in Anoka) into two new See the following attachments to the April 15, 2014 submittal to EPA for the State's identification of 48 new lake and river 3 assessment units: Inventory of all Impaired Waters, 2014 Hg TMDL Additions to Appendix A, and complete Appendix A. "Guidance Manual for Assessing the Quality of Minnesota Surface Waters for the Determination of Impairment, 305(b) 4 Report and 303(d) List", Minnesota Pollution Control Agency, 2014 Assessment Cycle, page 8. 3

6 TMD L Decision Document 2014 Revision to the Minnesota Statewide Mercury TMD L Approval Date: September 24, 2014 AUIDs, and The two new AUIDs, and were added to the 2014 Revision to Appendix A. Corrections to descriptions in Appendix A: The description for North Center Lake ( ) was updated in the 2014 Revision of Appendix A to include a Mercury TMD L Region for this lake segment. The Mercury TMD L Region was set to Southwest (SW). The description for North Center Pond ( ) was updated in the 2014 Revision of Appendix A to include a Mercury TMD L Region for this lake segment. The Mercury TMD L Region was set to Southwest (SW). The description for South Whaletail Lake ( ) was updated in the 2014 Revision of Appendix A to include a Mercury TMD L Region for this lake segment. The Mercury TMD L Region was set to Southwest (SW). The description for the Pomme de Terre River segment ( ) was changed from Pomme de Terre River (Pomme de Terre Lake to North Pomme de Terre Lake) to Pomme de Terre River (Barrett Lake to North Pomme de Terre Lake) for the 2014 Revision to the Appendix A. EPA Assessment: EP A finds these corrections and changes to assessment units acceptable. MPCA' s review of previously assessed waterbodies during the 2014 integrated reporting cycle resulted in corrections to existing assessment units, splitting lake and river assessment units and combining existing assessment units. MPC A staff communicated all corrections and changes to EP A within integrated reporting documentation. EP A recognizes that the splitting of the original assessment unit is actually a resegmentation, or a revision to the start and end points, of the assessment unit. For the purposes of tracking individual lake or river assessment units, EP A refers to the original assessment unit as being removed. Table 2 of this Decision Document identifies the changes and corrections being made through the 2014 Revision. Public Participation for the 2014 Revision MPCA includes information related to the revision of its Statewide Mercury TMDL as part of the Minnesota Integrated Report (IR) to EPA. Minnesota submits an IR to EPA every two years in order to fulfill the reporting requirements of Sections 305(b) and 303(d) of the Clean Water Act. As part of this submission process, MPC A must provide the public with the opportunity to review and comment on assessment decisions made for the IR, including the opportunity to provide input on waterbodies included or not included within the 2014 Revision. MPC A posted draft 2014 Revision information on its website in December 2013 and invited public comment on the 2014 Revision during a 47-day formal comment period from January 2, 2014 to February 18, 2014, which is longer than its usual 30-day public comment period. Notice of these informational meetings and the public comment period were communicated to the general public 4

7 TMD L Decision Document 2014 Revision to the Minnesota Statewide Mercury TMD L Approval Date: September 24,2014 through news releases, MPCA' s gov.delivery ing database, MPCA' s website, and via a publication in the State Register. 5 MPCA received twenty-seven (27) public comments during the public comment period for the 2014 IR. Two of the twenty-seven commenters requested that MCP A assess water quality information and consider the inclusion of additional waterbodies to the (d) impaired waters list as impaired due to mercury concentrations. The commenters did not specifically request that MPCA include these waters on the 2014 Revision to the Statewide Mercury TMDL. The commenters referenced specific waters including the Partridge River ( ), the Embarrass River ( ), Lake Sabin ( ), Wynne Lake ( ) and Colby Lake ( ). MPCA reviewed the water quality data cited by the commenters as well as water quality data within MPCA' s databases and other documentation to re-assess the five waterbodies referenced. MPC A determined that existing water quality data indicated that Lake Sabin ( ) and Wynne Lake ( ) were impaired due to mercury concentrations. These 2 lakes were added to the final (d) list as Category 5 waters. These waters were added to the final (d) list instead of the Statewide TMD L based on level of mercury concentration measured in both lakes. The mercury data indicated that concentrations were above the mercury concentration values which would have classified these waters as Category 4A waters and subject to the Statewide Mercury TMDL. Colby Lake, the Partridge River and Embarrass River segments were not assessed by MPC A due to deficiencies identified by MPCA with the water quality data cited and supplied by the commenters, and deficiencies in water quality information from MPCA' s internal water quality databases. MPC A explained that it will not make assessment decisions on waterbodies without appropriate water quality information. The water quality data requirements for mercury impaired waters can be found within Section VI.A.2 of MPCA's 2014 Assessment Methodology (pages 24-25). MPCA provided its response to all comments received during the public comment period in its Response to Public Comments Summary document (http :// state.mn.us/index.php/water/water-types-andprograms/minnesotas-impaired-waters-and-tmdls/impaired-waters-list.html#public-participation, beneath the Public Participation tab). EPA Assessment: EPA reviewed the public participation information submitted by the State and concluded that the MPCA adequately addressed the public comments regarding mercury impairments. EPA also reviewed information made available by MPC A to the public for review and comment, and MPCA' s announcement of the public comment period. EP A finds that the State of Minnesota's public participation process for the 2014 Revision to the Statewide Mercury TMDL provided the public with a reasonable opportunity to review and provide comments on the 2014 Revision. State Register. Vol. 38 No. 29, pages , 5

8 TMD L Decision Document 2014 Revision to the Minnesota Statewide Mercury TMD L Approval Date: September 24, 2014 Tribal Consultation Under its tribal consultation process, EPA consults with federally-recognized tribal partners, on a goverrrnient-to-government basis in instances when EPA decisions may impact tribal interests. EPA contacted federally-recognized tribal partners within the State of Minnesota to provide tribes the opportunity to consult with EP A on the 2014 Revision to the Minnesota Statewide Mercury TMD L (the 2014 Revision) in early May Representatives from the Fond du Lac Band of Lake Superior Chippewa, the Mille Lacs Band of Ojibwe and the Red Lake Band of Chippewa requested a tribal consultation with EPA. EPA hosted a tribal consultation conference call for the 2014 Revision on June 23, Tribal representatives communicated their concern that MPC A was not considering mercury water quality data collected within the St. Louis River watershed. 6 Specifically, that MPCA was not assessing all available water quality data for segments of the Embarrass and Partridge Rivers. Prior to the consultation discussion on June 23, 2014, tribal representatives shared fish tissue data and water column concentration data with EPA. Both of these data sets were collected by the Minnesota Department of Natural Resources (MN-DNR) at various stream locations within the St. Louis River watershed in the summer of After the conclusion of the call, EP A shared both of these stream water quality data sets with MPC A during a follow-up discussion related to tribal concerns. EP A requested that MPC A review the MN-DN R stream fish tissue data and stream water column data. MPCA reviews available water quality data to assess waters. For assessments, MPCA uses water quality data it collects via MPCA' s annual watershed monitoring schedule and water quality data collected by other federal and state agencies, local government partners and volunteers. MPC A solicited these groups, and the general public, to share water quality data with MPC A in the fall of 2011 and Data submitted to MPC A during this 'Call for Water Quality Monitoring Data'' solicitation was used, along with MPCA collected water quality data, in MPCA's assessment of water quality data for the (d) list. MPCA's Call for Water Quality Monitoring Data outlines submittal deadlines and data formatting instructions for data submittals from outside partners and agencies. This information is communicated by MPC A via its 'GovDelivery' electronic mail distribution system. MPC A expects that partners submitting data will follow the requested submittal deadlines and formatting guidelines to ensure that their water quality data will be assessed in a timely manner. There are instances where water quality information is not submitted in time to meet MPCA's requested submittal deadlines. In those cases MPCA will accept the water quality data submission and consider it for the following assessment cycle. For data submissions received outside of the 2014 Call for Water Quality Monitoring Data deadlines, MPCA will consider the water quality data for the (d) assessment cycle. MPCA reviewed the MN-DNR stream fish tissue data collected at various locations within the St. Louis River watershed and communicated that it had received this same data set from the MN-DNR in April 6 On the June 23, 2014 consultation call, a representative from the Red Lake Band of Chippewa expressed concern that MPCA had included waters within tribal boundaries on the (d) list. This issue will be addressed during the tribal consultation process for the final (d) list. 6

9 TMD L Decision Document 2014 Revision to the Minnesota Statewide Mercury TMD L Approval Date: September 24, MPC A explained that it did not consider this data during its 2014 assessment for the 303(d) list because it was shared too late in MPCA' s assessment process to be considered for the 2014 assessment cycle. MPC A communicated that it will consider this information during its assessment cycle for the (d) list. MPC A reviewed the MN-DN R stream water column data collected at various locations within the St. Louis River watershed and explained that the data provided by the tribes included stream water quality information which MPCA had yet to receive from the MN-DNR. MPCA explained that it typically receives lake water quality data from MN-DNR, but not stream water quality data. MPCA indicated that it will consider the MN-DNR stream water column data from the St. Louis River watershed during its assessment cycle for the (d) list. EPA considered the tribal input during its deliberations related to the approval ofthe 2014 Revision to the Minnesota Statewide Mercury TMDL. EPA provided each ofthe participating tribes with a written response which explained how EPA considered their input in EPA's final decision on the 2014 Revision. This response was sent to the most senior tribal official involved in the consultation from the Fond du Lac Band of Lake Superior Chippewa, the Mille Lacs Band of Ojibwe and the Red Lake Band of Chippewa. Conclusion EPA has completed a full review of the information shared by MPCA on April 15, 2014, and other appropriate supporting documentation. EPA finds that pursuant to Section 303(d) ofthe Clean Water Act, 33 U.S.C. Section 1313(D), and EPA's implementing regulations at 40 CFR Part 130, the 2014 Revision satisfies the elements of an approvable TMDL. This approval addresses changes to Appendix A of the Minnesota Statewide Mercury TMD L as approved on March 27, 2007 and subsequently revised on April 3, 2008 (the 2008 Revision), September 28, 2010 (the 2010 Revision) and May 31, 2013 (the 2012 Revision). No other elements or documentation supporting the original TMDL, 2008 Revision, the 2010 Revision or the 2012 Revision are being revised. This approval addresses 48 new lake and river assessment units (Table 1 of this Decision Document) not addressed in the original TMDL, the 2008 revision, the 2010 revision or the 2012 revision. This approval also recognizes corrections to one lake assessment unit (Clear Lake), the splitting of one lake unit (Long Lake) and one river assessment unit (Rum River), the corrections to three lake assessment units (North Center Lake, North Center Pond and South Whaletail Lake) and the correction to one river assessment unit (Pomme de Terre River) (Table 2 of this Decision Document). Table 3 ofthis Decision Document is the complete Appendix A, as revised by this approval. EPA's approval of the 2014 Revision extends to the lake and river assessment unit impairments identified in Tables 1 through 3 of this Decision Document, with the exception of any portions ofthe waterbodies that are within Indian Country, as defined in 18 U.S.C. Section EP A is taking no action to approve or disapprove the State's Mercury TMD L with respect to those portions ofthe waters at this time. EPA, or eligible Indian Tribes, as appropriate, will retain responsibilities under Section 303(d) for those waters. 7

10 TMD L Decision Document 2014 Revision to the Minnesota Statewide Mercury TMD L Approval Date: September 24,2014 EPA's approval of the 2014 Revision does not extend to any element ofthe original TMDL or the 2008 Revision, the 2010 Revision or the 2012 Revision unless it is specifically discussed in this Decision Document. EPA's approval of the 2014 Revision does not approve any additions of impaired waters or removal of impaired waters from Minnesota's Integrated Report. EPA will issue a separate decision specific to Minnesota's 2014 Integrated Report. 8

11 TMD L Decision Document 2014 Revision to the Minnesota Statewide Mercury TMD L Approval Date: September 24, 2014 Tables Table 1: 2014 Revised Minnesota Mercury TMDL : 2014 Additions to Appendix A Table 2: 2014 Revised Minnesota Statewide Mercury TMDL : Corrections and Changes to Lake and River Assessment Units Table 3: 2014 Revised Minnesota Statewide Mercury TMDL : 2014 Appendix A Attachments Attachment 1: EPA's March 27, 2007 approval of Minnesota Mercury Statewide TMDL submitted to EP A on August 25, 2006 Attachment 2: EPA's May 31, 2013 approval of 2012 Revision of Minnesota Mercury Statewide TMD L submitted to EP A on October 1,2012 9

12 Table 1: 2014 Revised Minnesota Statewide Mercury TMDL, 2014 Additions to Appendix A Approval Date: September 24, 2014 Year Assessment 1 in paired 1 aki m River liearli Placed In ; I.nil II) or Inventory l)\ K Lake II) 1 I'olliitanl or stressor Region Lake Assessment Units Round Ball Bluff French Round Sunset Irving Big Thunder Big Trout Moon S W Palmer SW Eagle Little Cut Foot Sioux Knife S W Hare Wind Two Deer Sand Grindstone Union S W Gilchrist S W South Long S W North Long SW Joseph Lost St. Mary's Half Moon Page S W Perkins SW Hattie S W Clear SW Lost SW Lost S W Ida SW River Assessment Units Lester River Lester River Lester River Mercury in water column Nemadji Creek Nemadji River Nemadji River Nemadji River Leech Lake River Redeye River Redeye River SW SW Rum River SW

13 Rum River SW Thief River SW Warroad River Warroad River, West Branch Warroad River, East Branch = The waterbodies in Appendix A have fish tissue concentrations greater than 0.2 mg/kg and equal to or less than mg/kg. Fish tissue concentrations that exceed mg/kg are not eligible to be included in the Mercury TMD L and will be added to the draft TMD L List. * The MPC A Mercury TMD L was originally approved on March 27, 2007 and revisions to Appendix A were approved on April 3, 2008, September 28, 2010 & May 31, * The waterbodies in Appendix A have fish tissue concentrations greater than 0.2 mg/kg and equal to or less than mg/kg. Fish tissue concentrations that exceed mg/kg are not eligible to be included in the Mercury TMD L and will be added to the draft TMD L List. * It is important to note that the Hg TMD L documentation and reduction goals, etc., are NO T being changed; only Appendix A is being modified.

14 Table 2: 2014 Revised Minnesota Statewide Mercuiy TMDL, Corrections and Changes to Lake and River Assessment Units Approval Date: September 24, Final Revision TMD L Impaired La he or Ri\er Reach Assessment /> I nit II) or p Impaired Lake or Ri\er Reach DNR Lake ii) Lake Assessment Units These 3 Lake Segments did not have a TMDL Region assigned in North Center Lake the 2012 revision, the TMDL Region should have been identified North Center Pond at that time South Whaletail Clear Lake Clear Lake Long Lake River Assessment Units ^ North Long Lake South Long Lake Rum River (Anoka Dam to Rum River (Trott Creek to Madison/Rice St in Madison/Rice St in Anoka) Anoka) Rum River (Trott Brook to Anoka Dam) Pomme de Terre River (Pomme de Terre to North Pomme de Terre Lake) Lake Pomme de Terre River (Barrett Lake to North Pomme de Terre Lake) 2014 Revision Assessment Lnil II) or l)\k Lake ID Kxplaiiation TMDL Region set to SW TMD L Region set to S W TMDL Region set to SW DNR Lake ID reassigned from (-00 to -01) and 00 removed from Appendix A DN R Lake ID split from (-00 to -01 and -02) and removed from Appendix A AUI D split from (-555 to -665 to -666) and -555 removed from Appendix A Description change from 2012 Revision to 2014 Revision

15 Table 3: 2014 Revised Minnesota Statewide Mercury TMDL, 2014 Appendix A Approval Date: September 24, 2014 Impaired Lake or River Ueach Year IMaccd In Inventory Assessment Unit I!) or Lake Assessment Units DNR Lake II) 1 i'olluianl (ir stressor Region Round Minnewawa Ball Bluf f Big Sandy Clear Dam Gun French Elm Island Lone Waukenabo Round Hill (North Basin) Hill (South Basin) Farm Island Hammal Hanging Kettle Spirit Hickory Pickerel Blind Round Sunset Cedar (Main Basin) Cedar (Northeast Arm) Cedar (West Bay) Otter S W Peltier S W Coon S W Golden S W Ham S W Crooked S W George S W East Twin S W Straight Two Inlets Bad Medicine Toad Island Many Point Height O f Land Cotton Strawberry White Earth S W Sallie S W Muskrat S W Detroit S W Mu d S W Floyd (South Bay) S W

16 Year IM.iiid In Assessment I'nit II) or Impaired 1 alu nr Ui\cr Reach Pollutant or stressor Region Inventory DNR I akc II)' Bi g Cormorant SW Ida S W Kitchi Cass Pimushe Rabideau Red (Upper Red) Red (Lower Red) Andrusia Windigo Bi g South Twin > Blackduck Wolf Swenson Turtle River Gull Sandy Bemidji Stump Big Bass (West Basin) Bi g Bass (East Basin) Beltrami Irving Marquette Movi l Turtle Julia Deer Balm Dellwater Clearwater Mayhew S W Little Rock S W Marsh S W Artichoke S W Long Tom S W East Toqua S W Big Stone S W Madison S W Duck S W Lura S W Loon S W Hiniker Pond S W Chub Park Little Hanging Horn Eagle Lotus S W Lucy S W Minnewashta S W Ann S W Susan S W

17 Impaired Lake or River Reach Year Placed In Assessment (.'nil II) or Inventory DNR Lake ID 1 Poilniant or stressor Itcginu Virginia 'do., (I-.I(I --U ( I S W Zumbra-Sunny S W Wassermann S W Reitz S W Waconia S W Hydes S W Oak S W Eagle S W Sugar Washburn Big Thunder Big Sand Inguadona (North Bay) Inguadona (SouthBay) Lower Trelipe Long (South of Main Basin) Long (Main Basin) Long (North of Main Basin) Long (Southwest Bay) Six Mile Winnibigoshish Little Boy Wabedo (Northeast Bay) Wabedo (Southwest Bay) Girl Broadwater Bay Woman (Main Lake) Leech (Main Basin) Leech (Kabekona Bay) Leech (Ah-Gwah-Ching Bay) Leech (Shingobee Bay) Portage Ada Trillium (Lizard) Blackwater Baby Sylvan (Southwest Bay) Sylvan (Northeast Bay) Gull Big Portage (West Bay) Big Portage (East Bay) Webb Stony Pleasant Pine Mountain Pike Bay Crooked Crystal Little Wolf Chisago (North Bay) S W Chisago (South Bay) S W South Center S W North Center Lake S W

18 Impaired Lake or liher Ueach Year Placed In Invciilorv Assessment Unit II) or DNR Lake- II)' Pollutant or stressor North Center Pond S W Little S W Green (Little Green) S W Green (Main Basin) S W Comfort S W Fish S W Rush (East Bay) S W Rush (West Bay) S W Elk Itasca Long Lost Minerva Lomond Moosehorn Tom Esther Little John Chester South Fowl John North Fowl Pine East Pike Moose Trout Carrot Greenwood West Pike Northern Light Elbow Alder Crocodile Swamper Jim Clearwater Devil Track East Bearskin Flour Pit Two Island Little Trout Kemo Thrush Thrasher Pine Wampus Aspen Swamp Hungry Jack Bearskin Duncan McDonald Poplar Region

19 Year Placed In Assessment Unit II) or impaired Lake or ki\er Reach Pollutant or stressor Region Inventory DN'lt Lake II) 1 Dunn l'"ix,,-um--tui Mark Pike Deer Yard Iron North Mayhew West Pope Cascade Brule Winchell Little Iron Barker Caribou Clara White Pine Christine Kino garni Gust Lichen Bouder Tait Homer Extortion Crescent Moore Sawbill Frost Meditation Round Alton Saganaga Saganaga Saganaga Saganaga Saganaga Saganaga Dyers Four Mile Toohey Finger Kelso Crooked Gillis Jasper Red Rock Elbow Little Saganaga Gabimichigami Mountain S W Borden Bay Clearwater

20 Impaired Lake nr Uiver Reach Year Placed In Assessment Unit II) or Inventory DNR l ake II)' Pollutant or stressor Region Portage :oi: 1 8-Dil ) \ l Platte Serpent Rabbit (East Portion) Rabbit (West Portion) Nokay Black Hoof Rice Crow Wing Sebie Upper Dean Ruth Horseshoe (East Bay) Horseshoe (West Bay) West Fox Edward Pelican Whitefish Cross Lake Reservoir Bi g Trout North Long Round Red Sand Lower Cull en Upper Hay Portsmouth Mine Pit Mahnomen Mine # Mahnomen Mine # Mahnomen Mine # Louise Mine Alstead Mine Arco Mine Rebecca S W Byllesby S W Marion (East Bay) S W Marion (Middle Bay) S W Marion (West Bay) S W Orchard S W Blackhawk S W Pickerel S W Unnamed Pond S W Laclavon S W Burgen S W Geneva S W Agnes S W Victoria S W Le Homme Dieu S W Irene S W Maple S W Darling S W Miltona S W Andrew S W Mary S W

21 Impaired Lake or Kivcr Reach Year Placed In Assessment Unit ID or Inventory DNR Lake ID 1 Pollutant or stressor Region 1.iiuk. i i \ n i Mi 1 i,r, i I'KJ X?l-(i ii'.-n l M ercury in fish tissue SW Latoka (South Bay) SW Ida SW Lobster (East Bay) SW Lobster (West Bay) SW Chippewa SW Whiskey SW Moon SW North Oscar SW South Oscar SW Red Rock SW Christina SW Bass SW Fountain (East Bay) SW Fountain (West Bay) SW Fountain (North Bay) SW Pelican SW Barrett SW Pomme de Terre SW Snelling SW Powderhom SW Nokomis SW Wirth SW Brownie SW Lake of the Isles SW Upper Twin SW Middle Twin SW Lower Twin SW Bush SW Bryant SW Round SW Smetana SW Red Rock SW Medicine SW Eagle SW Pike SW Weaver SW Fish SW Minnetonka (Grays Bay) SW Minnetonka (Lower Lake) SW Minnetonka (Carsons Bay) SW Minnetonka (St Albans Bay) SW Minnetonka (Upper Lake) SW Minnetonka (Black Lake) SW Minnetonka (Seton Lake) SW Minnetonka (Emerald Lake) SW Minnetonka (Halsteds Bay) SW Minnetonka (Crystal Bay) SW Minnetonka (Maxwell Bay) SW Minnetonka (Stubbs Bay) SW Minnetonka (North Arm) SW Minnetonka (West Arm) SW Minnetonka (Jennings Bay) SW

22 Impaired Lake or River Reach Year Placed In Assessment Unit II) or Inventory l)\'k Lake ID 1 Pollutant or stressor Ri uioii Christmas S W Spurzem S W Half Moon S W Long S W Independence S W North Little Long S W South Little Long S W North Whaletail S W South Whaletail S W Sarah (West Bay) S W Sarah (East Bay) S W Rebecca S W Ham Eleventh Crow Wing (Main Bay) Eleventh Crow Wing (Northeast Bay) Shingobee Garfield Midge Grace Eighth Crow Wing Third Crow Wing Crow Wing # S W Palmer S W Fifth Crow Wing Waboose Spider (NW/SE Bay) Spider (East Bay) Big Stony Belle Taine Upper Bottle Mantrap (East Basin) Mantrap (Middle Basin) Mantrap (Mirror Bay) Mantrap (West Arm) Mantrap (Home Bay) Plantagenet Upper Twin Long Pickerel Lower Bottle Big Sand Schoolcraft George Fish Hook Potato Portage Island Eagle Green S W Beauty Swan (West Bay) Swan (Main Basin)

23 Year Placed In Assessment Unit il) or Impaired Lake or Kiver Ueach Pollutant or sliessoi Region Inventors DNR Lake 11) 1 Buck Shallow Ox Hide Upper Panasa Lower Panasa Little Bear Thistledew Bass Deer Wabana Trout Cutaway Plantation Pokegama (Main Bay) Pokegama (Wendigo) Blandin Forsythe Blackwater Guile Loon Little Bass Bass Caribou Deer Moose Turtle Bello Jessie Ball Club Bowstring Little Ball Club Sand Little Winnibigoshish Little Cut Foot Sioux Cut Foot Sioux (Main Bay) Cut Foot Sioux (East Bay) Round Island Dixon Unnamed (O'Brien Reservoir #4) Fish (Northwest Bay) SW Fish (Bulhead Bay) S W Fish (Main Lake) S W Little Spirit S W Knife S W Fish S W Elizabeth (Main Lake) S W Diamond S W Calhoun S W Long S W Big Kandiyohi S W George S W Nest SW

24 Year Placed In Assessment l.'nit Ii) or Impaired Lake or River Reach Pollutant or stressor Region Inventory DNR Lake ID 1 Eagle S W Long S W Andrew S W Florida S W Games S W East Solomon S W Norway S W Clear Dark Teufer Lac Qui Parle (Southeast Basin) S W Lac Qui Parle (Northwest Basin) S W Benson East Crooked (East Bay) Crooked (West Bay) Hare Thunderbird Ninemile Lupus Wye Wilson Harriet Little Wilson Dam Five Whitefish Coffee T Square Kawishiwi Adams Ogishkemuncie Silver Island Perent Little Knife Nieado Tetagouche Nipisiquit Johnson Balsam Section Thomas Fraser Dumbbell Isabella Ima Knife Lax Delay Eighteen Redskin Jack Bog

25 impaired Lake nr Ui\er Reach Year Placed In As>;cssiin>i;l E.'nit il) or Inventory BN'It L::kc II)' I'oliiiinni or stressor Region Disappointment loos ;.x-niss-'mi Vera Parent Snowbank Birch Katherine Surprise Flat Horn Quadga One Two Newfound Flash Grass Wind Moose Basswood Middle McDougal Pike Two Deer Highlife East Chub West Chub Section Twelve Triangle Greenstone Clear Pickerel Browns Newton Cedar Jouppi Lake ofthe Woods (main) Lake of the Woods(4 Mile Bay) Upper Sakatah S W Tetonka S W Gorman SW Frances SW Washington S W Dead Coon SW Benton S W Perch S W Shaokatan SW Hendricks S W Lady Slipper SW Winsted S W Hook Mercury, in fish tissue S W Marion S W Otter (Main Basin) S W Otter (South Arm) S W Otter (North Arm/Campbell) S W Stahls SW South Twin

26 Impaired Lake or River Reach Year Placed In Assessment I'nit II) or Inventory DM * Lake II)' Pollutant or stressor Region North Twin Island SW Florian Park Reservoir S W Big Twin S W Francis S W Jennie S W Arvilla S W Long SW Spring SW Bi g Swan SW Betty SW Washington S W Dunns S W Richardson S W Minnie-Belle Mercury hi fish tissue S W Mille Lacs Shakopee Sullivan Shamineau Cedar SW East Side S W Silver SW Zutnbro S W WR6 A Pond S W Adley S W Fish SW West Leaf S W East Leaf SW Bi g Pine SW Rush SW Little Pine S W Spitzer S W Buchanan S W Murphy Clitherall S W West Battle S W Blanche SW Ottertail SW Marion SW Walker S W Little McDonald S W Rose S W North Turtle S W Dead S W Star S W Sybil S W Long S W Sewell SW Stalker S W Pickerel S W Ten Mile S W Wall S W North Lida S W

27 impaired Lake or Stiver Reach Year LMaceJ hi AsM'S'aoeiM Liii; If} or! r:\ciilorv DNR Lake IB 1 i'oliofauf or stressor fie«io;i Lizzie (North Portion) 1998 ^-irvm-ui SW Lizzie (South Portion) SW Swan S W Pelican SW Pebble SW Jewett S W Prairie SW Orwell Reservoir SW West Olaf Mercuiy in fish tissue SW East Olaf SW Tamarack Oak Sturgeon Sand Long Grindstone Upper Pine Bi g Pine Pokegama SW Union SW Maple SW Grove SW Scandinavian SW Amelia SW Villard SW Gilchrist SW Reno SW Minnewaska SW Signalness SW Bald Eagle SW Gervais SW Phalen SW Beaver SW Sucker SW East Vadnais SW Pleasant SW Bennett S W Mccarrons SW Como SW Owasso SW Josephine SW North Long SW South Long SW Snail S W Johanna SW Silver S W Unnamed (North Star) SW Redwood S W Cannon S W Wells S W Circle SW French S W Lower Sakatah S W

28 impaired Lake or Ki\er Reach Year Placed In Assessment t.'nil II) or Irucntorv DNR Lake II)' Pollutant or stressor Region Hunt S W Cedar S W Shields S W Hayes Pine Seven Beaver Pequaywan Salo Bassett Whisper Hobo Bass Little Long Shagawa Low Tee Cadotte Johnson Little Alden Joseph Muckwa Twin Bi g West Robinson Eagles Nest # Linwood Bearhead Armstrong Eagles Nest # Ramshead Takucmich Wild Rice Boulder Whitewater Vermilion (East) Vermilion (West) North Twin Little Trout Jeanette Lower Pauness Fat Caribou Pike Fish Lake Flowage (Main Basin) Fish Lake Flowage (East Bay) Trout Leora Dinham Bass Lost Coe Lost Wolf

29 !ni));:ir'jii l.ukc or River Reach Year Placed hi A5,sess::;i.'nt {'ail H) or inventory»n K Lake H>' Pollutant or slrc.snr He«io:: Oriniack 'mm (>'>.,rs -on Pickett Murphy St. Mary's Pleasant Half Moon Silver Virginia Deep Pfeiffer Kabustasa Little Trout Mukooda O'Leary Winchester Mashkenode Auto Sand Susan Myrtle Moose Marion Little Johnson Long Fourteen Leander Clear Elephant Cruiser Peary Fishmouth Six Mile Pelican Black Duck Ek Kabetogama Longyear (North Bay) Longyear (South Bay) Long (Main Basin) Long (North Bay) Ash Quill Kelly Side Sturgeon (Main) Middle Sturgeon West Sturgeon West Two Rivers Reservoir Gilbert Pit Upper Twin Pond Murphy SW Cleary S W Lower Prior S W

30 Impairx-d 1 ake or Ri\er Reach Year I'hiced hi Assessment I nil IO or Pollutant or stressor Region hi', color;. I)NU Lake I!) 1 Mcmahon s\\ Spring S W Upper Prior SW Cedar S W O'Dowd S W Thole SW Schneider SW Upper Orono SW Lower Orono SW Mitchell SW Big SW Pearl SW Grand Mercuiy in fish tissue S W Sagatagan S W Kreigle S W Big Fish SW Pelican S W Cedar Island (Main) S W Cedar Island (Mud Lake) S W Cedar Island (Koetter Lake) S W Cedar Island (East Lake) SW Two Rivers SW Horseshoe SW Rice SW Koronis (Mud Lake) SW Koronis (Main Basin) SW Page SW Perkins S W Hattie SW Camp SW Oliver (East Portion) SW Oliver (West Portion) SW Mary SW Big Swan SW Big Birch (Northeast portion) SW Big Birch (South portion) SW Little Birch SW Sauk (Southwest Bay) SW Sauk (Norh Bay) SW Maple SW Osakis SW Traverse SW Blueberry SW Stocking S W Clear SW Loon S W Reeds S W Little Carnelian SW Lily S W Square SW Big Carnelian SW Big Marine SW Bone S W

31 i Year Placed lit Assessment linit ii) or impaired La\c or River Reach Pollutant or stressor lection inventory mil Lake H>' Battle Creek S W Elmo S W Tanners S W Lost S W Lost S W Forest S W Clear S W Carver S W White Bear SW Beebe S W Pulaski S W Buffalo S W Waverly S W Upper Maple S W Silver SW Ida S W Ann SW Mary S W Howard S W Granite S W Cedar SW Pleasant S W French S W West Lake Sylvia S W John S W East Lake Sylvia S W Collinwood SW Union S W Del Clark S W Lester River Lester Ri ver Whiteface River Whiteface River Whiteface River Nemadji Crk Nemadji River Nemadji River Nemadji River Mississippi River Leech Lake River Mississippi River Mississippi River Mississippi River Mississippi River Swan River Mississippi River Mississippi River Mississippi River Mississippi River Mississippi River S W Mississippi River Mississippi River Mississippi River

32 Year Placed hi Assessment Unit H) or Impaired 1.akc or Sliver Reach Pollutant or strcvinr Region Inventory l)nk Lake II)' Mississippi River SW Mississippi River SW Mississippi River Mississippi River SW Crow Wing River Crow Wing River Crow Wing River Crow Wing River Crow Wing River Crow Wing River SW Crow Wing River SW Crow Wing River Crow Wing River Crow Wing River Crow Wing River Crow Wing River Crow Wing River Redeye River SW Redeye River SW Long Prairie River Long Prairie River SW Long Prairie River SW Long Prairie River SW Long Prairie River SW Long Prairie River SW Long Prairie River SW Mississippi River SW Mississippi River SW Mississippi River SW Mississippi River SW Mississippi River SW Mississippi River SW Mississippi River SW Mississippi River SW Sauk River SW Sauk River SW Sauk River SW Sauk River SW Sauk River SW Sauk River SW Sauk River SW Sauk River SW Sauk River SW Sauk River SW Sauk River SW Sauk River SW Sauk River SW Mississippi River SW Elk River SW Elk River SW Mississippi River SW Mississippi River SW Elk River SW

33 Year I'IECCC! in As.*("isiiiL'iii 5.'nil Ii; or impaired Lake or River Reach Pollulani or Nil essor ii'.'gion in vcn tori DNR l ake ID 1 Elk River SW Mississippi River SW Mississippi River SW Elk River SW Elk River SW Crow River, North Fork SW Crow River, North Fork SW Crow River, North Fork SW Crow River, North Fork SW Crow River, North Fork S W Crow River, North Fork SW Crow River, North Fork SW Crow River, North Fork SW Crow River, South Fork S W Crow River, South Fork SW Crow River, South Fork SW Crow River, South Fork Mercuiy in fish tissue SW Crow River, South Fork SW Mississippi River SW Mississippi River SW Mississippi River SW Mississippi River SW Mississippi River SW Mississippi River SW Mississippi River SW Mississippi River S W Mississippi River Mercu y in fish tissue SW Mississippi River SW Mississippi River SW Mississippi River SW Mississippi River SW Rum River SW Rum River SW Rum River SW Rum River Rum River Mercuiy in fish tissue SW Rum River SW Rum River SW Rum River SW Rum River Mercu y in fish tissue SW Rum River Mercu y in fish tissue Rum River Mercu y in fish tissue Rum River Mercu y in fish tissue SW Rum River Mercu y in fish tissue SW Minnesota River Mercu y in fish tissue SW Minnesota River Mercu y in fish tissue SW Minnesota River Mercu y in fish tissue SW Minnesota River Mercu y in fish tissue SW Minnesota River Mercu y in fish tissue SW Minnesota River Mercu y in fish tissue SW Pomme de Terre River Mercu y in fish tissue SW Pomme de Terre River Mercu y in fish tissue SW Pomme de Terre River Mercu y in fish tissue S W

34 Impaired 1 akc or River Reach Year Plared In Assessment 1 'nil II) or Inventory DN R Lake ID 1 Pollutant or si lessor Region Pomme de Terre River S W Pomme de Terre River S W Pomme de Terre River SW Pomme de Terre River S W Pomme de Terre River Mercuiy in fish tissue SW Pomme de Terre River SW Lac qui Parle River, West Branch SW Lac qui Parle River, West Branch SW Lac qui Parle River, West Branch SW Lac qui Parle River, West Branch SW Minnesota River S W Yellow Medicine River S W Yellow Medicine River, South Branch (County Ditch 35) S W Minnesota River S W Minnesota River SW Minnesota River SW Hawk Creek SW Minnesota River SW Hawk Creek SW Minnesota River SW Yellow Medicine River SW Minnesota River SW Minnesota River S W Minnesota River SW Minnesota River SW Yellow Medicine River SW Yellow Medicine River, North Branch SW Hawk Creek S W Hawk Creek S W Hawk Creek S W Minnesota River S W Minnesota River SW Yellow Medicine River S W Hawk Creek SW Hawk Creek SW Minnesota River SW Minnesota River SW Hawk Creek S W Minnesota River S W Chippewa River S W Chippewa River SW Chippewa River SW Chippewa River SW Chippewa River SW Chippewa River SW Chippewa River SW Chippewa River S W Redwood River S W Redwood River S W Redwood River S W Redwood River SW

35 impaired Lake or UKer ttcach Year imaeed In Assessr.ien: ' 'iii: 1 ;> or Inventory UN It Lake IF*' S'(ii!i:i;;sit or stressor Region Redwood River I'MJ.S S W Redwood River S W Redwood River S W Redwood River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Cottonwood River S W Cottonwood River S W Cottonwood River S W Cottonwood River S W Cottonwood River S W Cottonwood River S W Cottonwood River S W Cottonwood River S W Cottonwood River S W Blue Earth River S W Blue Earth River S W Blue Earth River S W Blue Earth River S W Blue Earth River S W Blue Earth River S W Blue Earth River S W Blue Earth River S W Blue Earth River S W Blue Earth River S W Blue Earth River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W Minnesota River S W St Croix River St Croix River St Croix River St Croix River St Croix River

36 Impaired Lake or liner Keaeh Year Placed In Inventory Assessment I'nit 1!) or Pollutant or stressor Ut-ginu 1)NK l ake ID 1 St Croix River \ l St Croix River St Croix River St Croix River Snake River SW Snake River SW Snake River S W Snake River Snake River Snake River SW Snake River SW Snake River SW Snake River S W Sunrise River, North Branch S W St Croix River S W St Croix River S W St Croix River SW St Croix River S W St Croix River S W St Croix River S W St Croix River SW St Croix River SW St Croix River SW St Croix River S W St Croix River SW Sunrise River SW Sunrise River S W Vermillion River SW Vermillion River SW Vermillion River S W Vermillion River SW Mississippi River SW Vermillion River SW Vermillion River S W Cannon River SW Cannon River S W Cannon River S W Cannon River S W Cannon River S W Whitewater River S W Whitewater River S W Whitewater River SW Mississippi River SW Zumbro River SW Zumbro River S W Zumbro River SW Zumbro River SW West Indian Creek SW West Indian Creek SW West Indian Creek SW Mississippi River SW Root River S W Root River S W

37 impaired i.:ikc. or River MeacS; Year Placed hi Ar^i-ssn.enf I unit J) or Inventory LAR Lake SB 1 Poiiuiaiit or slrev;or Root River, Middle Branch SW Root River, South Fork SW Root River, South Fork SW Root River, South Fork SW Root River, South Fork SW Root River SW Root River SW Root River SW Root River, Middle Branch SW Root River, Middle Branch SW Root River, Middle Branch SW Root River, Middle Branch SW Root River, Middle Branch (Deer Creek) SW Root River, South Fork SW Root River, South Fork SW Root River, Middle Branch B95 SW Root River, Middle Branch B96 SW Mississippi River SW Cedar River SW Cedar River SW Cedar River SW Cedar River SW Cedar River SW Cedar River SW Cedar River SW Cedar River SW Cedar River SW Bois de Sioux River SW Bois de Sioux River SW Buffalo River SW Red Lake River SW Red Lake River SW Red Lake River SW Red Lake River SW Red Lake River SW Red Lake River Red Lake River SW Red Lake River SW Red Lake River SW Red Lake River SW Red Lake River SW Thief River SW Clearwater River SW Clearwater River SW Clearwater River SW Clearwater River SW Clearwater River SW Clearwater River SW Clearwater River SW Rainy River Rainy River Rainy River

38 Impaired Lake or Kiver Keacii Year Placed la Assessment Lnil II) or Inventory DNR Lake II) 1 Pollutant or stressor Region Rainy River M Rainy River Kawishiwi River Kawishiwi River Rainy River Rainy River Rainy River Rainy River Rainy River Rainy River Rainy River Little Fork River Little Fork River Little Fork River Little Fork River Little Fork River Little Fork River Little Fork River Little Fork River Little Fork River Little Fork River Sturgeon River Sturgeon River Sturgeon River Sturgeon River Big Fork River Big Fork River 2012 ' Big Fork River Big Fork River Big Fork River Big Fork River Big Fork River Rainy River Rainy River Rainy River Rainy River Warroad River Warrorad River, West Branch Warroad River, East Branch Tom Mercury in water column Greenwood Mercury in water column Northern Light Mercury in water column Elbow Mercury in water column Devil Track Mercury in water column McDonald Mercury in water column Homer Mercury in water column Sawbill Mercury in water column Lester River Mercury in water column Mississippi River Mercury in water column SW Mississippi River Mercury in water column S W Mississippi River Mercury in water column SW Minnesota River Mercury in water column S W Minnesota River Mercury in water column SW