1050 172 mndnr.gov/groundwatermapping150 By Randy J. Bradt ... · Approximate equipotential...
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1050 1000 1150 1100 950 900 850 800 750 700 650 600 550 500 450 H’ 1050 1000 1150 1100 950 900 850 800 750 700 650 600 550 500 450 Elevation (feet) H Crow River, South Fork Crow River, South Fork Cedar Creek Cosmos MN4 CSAH10 CSAH1 CSAH26 Pipe Lake nts gs4 wrt gt5 gs3 scs nht hwt ms mlt gs4 gt4 mt hwt scs mlt sct gt3 nt nt mls mt hs pu Ka wes mls sct gt3 nht mt 1100 1075 p_u 9.38 23.1 24.7 3.17 25.5 106 1050 1000 1150 1100 1200 950 900 850 800 750 700 650 600 550 500 G’ 1050 1000 1150 1100 1200 950 900 850 800 750 700 650 600 550 500 Elevation (feet) G Fallon Lake Willie Lake Lake Jennie CSAH15 CSAH18 MN4 CSAH35 MN15 CSAH9 MN22 CSAH14 CSAH1 Belle Creek Sucker Creek gs4 mls vs hs gs3 wes mls pu Ka vt hs wrt pu vs hs ms wes pu ss wrt nts ss scs hwt nt nt nt ss gt5 mlt mlt hwt hwt nht sct wte gt5 mlt hs mt mt sct gt4 hs ms sct wte gt4 scs wte gt3 wrs ms wes gs5 wrs hs scs wes 1100 1050 1075 p_u p_u 12.3 6.39 21.5 10.7 15.1 24.9 19.8 2.11 169 183 262 208 sc 5500 1200 1050 1000 1150 1100 1250 1200 950 900 850 800 750 700 650 600 550 500 450 F’ 1050 1000 1150 1100 1250 1200 950 900 850 800 750 700 650 600 550 500 450 Elevation (feet) F Star Lake Manuella Lake Collinwood Lake Washington Creek Belle Creek CSAH18 CSAH14 CSAH1 CSAH9 CSAH15 CSAH28 MN4 MN15 MN22 wrt gs5 ms wes scs ss wte scs mlt ss psu gt3 wte mlt vs pu Ka Kd Ka gt3 ms mt mlt vt pu gt4 scs mt gt4 mt gt5 mls mt scs mt gs3 wrs nht sc hs ms hwt nt gs4 hs hwt nt wrt mls hwt scs gs4 hs ms sct sct nts 1050 1125 1075 1150 1100 p_u 17.4 25.2 2.04 4.98 24.7 15.6 34.7 27.2 10.9 869 222 150 163 134 164 110 18.4 5.26* 2500 1300 1050 1000 1150 1100 1250 1200 950 900 850 800 750 700 650 E’ 1050 1000 1150 1100 1250 1200 950 900 850 800 750 700 650 Elevation (feet) E CSAH4 MN4 CSAH14 MN15 CSAH1 MN22 CSAH32 CSAH24 US12 Long Lake Long Lake Thoen Lake Lake Ripley Lake Andrew Nelson Litchfield Litchfield Collinwood Creek Washington Creek scs gt5 wrs scs gt5 pu hs gt4 wrt sct scs hs gt3 wrt sct wes sct hwt hwt wes mls ss gs5 ss gs4 mls hs mls ss mlt mlt gs4 wrs mt gs3 ss hs nt nt nt sc pu Kd Ka Kd Kd 1125 1125 1175 1075 1150 1025 1100 1150 1050 p_u 11.7 24.3 51.3 3.23 5.77 3.2 49.0 3.04 20.0 269 136 358 270 109 699 174 sc sc 9.26* 13.0* *aquitard Aquifers and aquitards grouped by stragraphy Quaternary unconsolidated sediment Interpreted trium age is indicated by the background color. See Figure 5 in the report for geologic unit correlaon. Surficial sand and gravel Buried aquifers and aquitards nht* nts nt* ms mt* hs hwt* scs sct* mls mlt* gs3 gt3* gs4 gt4* gs5 gt5* wrs wrt* wes wte* vs vt* psu pu sc* ss Bedrock Dakota Formaon Cretaceous undifferenated Precambrian crystalline p_u Ka Kd ) 7 T. 117 N. 24 22 ¤ 12 ) 4 ) 4 ) 55 22 ) ) ) 15 ) ) 15 ) 55 Dassel Greenleaf Litchfield Rosendale Cosmos Cedar Mills Grove City Kingston Forest City Eden Valley Watkins Darwin 94°22'30" W. 45°7'30" N. 45° N. 45°15' N. 94°37'30" W. 94°45' W. 94°30' W. T. 118 N. T. 119 N. T. 120 N. T. 121 N. R. 32 W. R. 31 W. R. 30 W. R. 29 W. B’ B B’ B C’ C C’ C D’ D D’ D E’ E E’ E F’ F G’ G H’ A’ A A’ A H 1 0 1 2 3 4 SCALE 1:400 000 1012 4567 KILOMETERS 3 5 MILES Symbols Well used to generate cross secon N Part B line of cross secon shown on Plate 7 A A’ Part B line of cross secon shown on this plate E E’ Part A line of cross secon A A’ LOCATION DIAGRAM 1 0 1 2 3 4 5 MILES 1 0 1 2 4 5 6 7 8 3 9 KILOMETERS SCALE 1:100 000 VERTICAL EXAGGERATION X 50 Groundwater sample with evaporave signature E Quaternary aquitards Grouped by texture ranging from highest to lowest sand content indicang relave hydraulic conducvity. Geologic unit code Percent sand mt, hwt, wrt nt, mlt, wte nht, sct, gt3, gt4, gt5, vt >50% and ≤60% >40% and ≤50% >30% and ≤40% Groundwater condions Symbols and labels Land or bedrock surface General groundwater flow direcon Geologic contact Approximate equipotenal contour; contour interval 25 feet 1100 Water table Trium age Darker color in small vercal rectangle (well screen symbol) indicates trium age of water sampled in well. Lighter color indicates interpreted age of water in aquifer. Mixed: water is a mixture of recent and vintage waters (greater than 1 TU to less than 8 TU). Well not sampled for trium. Vintage: water entered the ground before 1953 (less than or equal to 1 TU). Recent: water entered the ground since about 1953 (8 to 15 trium units [TU]). Chloride: i ⠀ 送威紩ㄮ㈠⠁섁瘃唀 ဩ㠮㘠⠁紁瘁ခḁ瘩 ≥5 ppm. (* naturally elevated) 18.4 Arsenic: if shown, concentraon is ≥2 ppb. 3.17 Manganese: if shown, concentraon is ≥100 ppb. Carbon-14 ( 14 C): esmated groundwater residence me in years. 1200 183 Groundwater discharges to a surface-water body. Groundwater flowpath is unknown. Groundwater flows laterally. CROSS SECTION EXPLANATION Groundwater Atlas of Meeker County County Atlas Series C-35, Part B Plate 8 of 8 Hydrogeologic Cross Secons E–Eʹ through H–Hʹ To accompany atlas Report and Plates 6–7. Hydrogeologic Cross Secons By Randy J. Bradt 2019 Minnesota Department of Natural Resources County Atlas Program mndnr.gov/groundwatermapping Buried sand aquifers are listed in each secon from the surface down to include the deepest buried sand aquifer that may have detectable trium. Addional aquifers discussed include those with relevant carbon-14 residence me. Cross Secon E–Eʹ A total of 10 wells were sampled for trium along this cross secon from wells ranging in depth from 56 to 312 feet. The ss aquifer deposits are at the land surface in scaered locaons on top of the nt aquitard. The most extensive and thickest deposits are located between MN 22 and CSAH 14 in the middle of the cross secon. Recent trium-age water was mapped in this aquifer. The hs aquifer was mapped as both mixed and vintage trium age. All samples were collected from areas with very low polluon sensivity. The mixed trium-age results suggest lateral recharge from adjacent areas of higher sensivity. The scs aquifer is mostly well protected and was mapped as vintage trium-age water. Mixed trium-age water was found in a sample collected on the east end of the cross secon where vintage trium was expected. The source of mixed trium is not discernable with the available informaon. Cross Secon F–Fʹ A total of 11 wells were sampled for trium along this cross secon from wells ranging from 65 to 158 feet deep. The ss aquifer deposits are at the land surface on top of the nt aquitard near MN 22 in the middle of the cross secon. Recent trium-age water was mapped in this aquifer. The nts aquifer is limited to locaons near and slightly west of CSAH 1. The buried sands were all mapped as mixed trium-age water. The ms aquifer was mapped as vintage trium-age water east of CSAH 14 where the nt aquitard is thicker, and west of CSAH 28 where the combined thickness of the nht and nt aquitards provide sufficient aquifer protecon. Between these locaons mixed trium-age water is mapped where the aquifer is not as well protected. Groundwater recharge is likely moving laterally from adjacent higher sensivity areas to the west where the overlying nts aquifer enhances recharge to this aquifer and possibly from Star Lake. The hs aquifer was mapped as vintage trium-age water in most locaons. There is one excepon just west of CSAH 1. A shallower nts aquifer appears to be connected to the underlying hs aquifer, thereby enhancing recharge to the deeper hs aquifer. On the south shore of Lake Washington east of CSAH 14, two closely spaced wells had carbon-14 residence mes of 1,300 years for the shallower 68-foot-deep well in the hs aquifer and 2,500 years for the deeper 130-foot-deep well in the scs aquifer. Cross Secon G–Gʹ Nine wells were sampled for trium in this cross secon from wells ranging from 70 to 250 feet deep. The ss aquifer deposits are at the land surface on top of the nt aquitard at three locaons in the eastern poron of the cross secon. Recent trium-age water was mapped for this aquifer. The nts aquifer was mapped as mixed trium-age water for the single shallow buried aquifer found near CSAH 1. The ms aquifer was mapped as vintage trium-age water west of MN 22 because the nht and nt aquitards are both present. Mixed trium-age water is mapped east of MN 22 where only the nt aquitard is present. The scs and gs4 aquifers were mapped as vintage trium-age water throughout. Just west of CSAH 1 two closely spaced wells having different depths were sampled for carbon-14 residence me. The shallower 97-foot-deep well in the scs aquifer dated 1,200 years old. The deeper 250-foot-deep well in the gs4 aquifer dated 5,500 years. Cross Secon H–Hʹ A total of 4 wells were sampled for trium along this cross secon from wells ranging from 60 to 195 feet deep. The nts aquifer was mapped as mixed trium-age water for these shallow buried aquifer units. The ms aquifer was mapped as vintage trium-age water with the excepon of the far eastern Crow River, South Fork locaon where the overlying nht aquitard has been removed and the nt aquitard parally dissected. This map was compiled and generated in a geographic informaon system. Digital data products are available from the DNR County Atlas Program at mndnr.gov/groundwatermapping. This map was prepared from publicly available informaon. Every reasonable effort has been made to ensure the accuracy of the factual data on which this map interpretaon is based. However, the DNR does not warrant the accuracy, completeness, or any implied uses of these data. Users may wish to verify crical informaon; sources include both the references in the report and informaon on file in the offices of the Minnesota Geological Survey and the DNR. Every effort has been made to ensure the interpretaon shown conforms to sound geologic and cartographic principles. This map should not be used to establish legal tle, boundaries, or locaons of improvements. Base modified from Minnesota Geological Survey, Meeker County Geologic Atlas, Part A, 2015. Universal Transverse Mercator projecon, zone 15N, North American Datum of 1983. North American Vercal Datum of 1988. 500 Lafayee Road St. Paul, MN 55155-4025 888-646-6367 or 651-296-6157 mndnr.gov This informaon is available in alternave format on request. The Minnesota DNR prohibits discriminaon in its programs and services based on race, color, creed, religion, naonal origin, sex, public assistance status, age, sexual orientaon, or disability. Persons with disabilies may request reasonable modificaons to access or parcipate in DNR programs and services by contacng the DNR ADA Title II Coordinator at [email protected] or 651-259-6157. Discriminaon inquiries should be sent to Minnesota DNR, 500 Lafayee Road, St. Paul, MN 55155-4049; or Office of Civil Rights, U.S. Department of the Interior, 1849 C Street NW, Washington, DC 20240. © 2019, State of Minnesota, Department of Natural Resources and the Regents of the University of Minnesota Prepared and published with the support of the Minnesota Environment and Natural Resources Trust Fund and the Clean Water, Land and Legacy Amendment
Transcript of 1050 172 mndnr.gov/groundwatermapping150 By Randy J. Bradt ... · Approximate equipotential...
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9.82*151*
12.5*
Groundwater sample with evaporative signatureE
*aquitard
Aquifers and aquitards grouped by stratigraphyQuaternary unconsolidated sedimentInterpreted tritium age is indicated by the background color. See Figure 5 in the report for geologic unit correlation.
Quaternary aquitards
Grouped by texture ranging from highest to lowest sand content indicating relative hydraulic conductivity.
Surficial sand and gravel
Buried aquifers and aquitards
Geologic unit code Percent sandmt, hwt, wrt
nt, mlt, wte
nht, sct, gt3, gt4, gt5, vt
>50% and ≤60%
>40% and ≤50%
>30% and ≤40%
Groundwater conditions
Symbols and labels
Land or bedrock surface
General groundwater flow direction
Geologic contact
Approximate equipotential contour; contour interval 25 feet
1100
Water table
Tritium age
Darker color in small vertical rectangle (well screen symbol) indicates tritium age of water sampled in well. Lighter color indicates interpreted age of water in aquifer.
Mixed: water is a mixture of recent and vintage waters (greater than 1 TU to less than 8 TU).
Well not sampled for tritium.
Vintage: water entered the ground before 1953 (less than or equal to 1 TU).
Recent: water entered the ground since about 1953 (8 to 15 tritium units [TU]).
CROSS SECTION EXPLANATION
Chloride: if shown, concentration is ≥5 ppm.(* naturally elevated)
18.4
Arsenic: if shown, concentration is ≥2 ppb.3.17
Manganese: if shown, concentration is ≥100 ppb.
Carbon-14 (14C): estimated groundwater residence time in years.
1200
183
nht*
nts
nt*
ms
mt*
hs
hwt*
scs
sct*
mls
mlt*
gs3
gt3*
gs4
gt4*
gs5
gt5*
wrs
wrt*
wes
wte*
vs
vt*
psu
pu
sc*
ss
Groundwater discharges to a surface-water body.
Groundwater flowpath is unknown.
Groundwater flows laterally.
Bedrock Dakota Formation
Cretaceous undifferentiated
Precambrian crystallinep_u
Ka
Kd
)
7T. 117 N.
24
22
¤12
)4
)4
)55
22)
)
)15
))15
)55
Dassel
Greenleaf
Litchfield
Rosendale
CosmosCedar Mills
GroveCity
KingstonForest City
Eden Valley
Watkins
Darwin
94°22'30" W.
45°7'30" N.
45° N.
45°15' N.
94°37'30" W.94°45' W.
94°30' W.
T. 118 N.
T. 119 N.
T. 120 N.
T. 121 N.
R. 32 W. R. 31 W.
R. 30 W. R. 29 W.
B’BB’B
C’C
C’CD’D
D’D
E’E
E’E
F’F
G’G
H’
A’A A’A
H
1 0 1 2 3 4
SCALE 1:400 000
1 0 1 2 4 5 6 7 KILOMETERS3
5 MILES
Symbols
Well used to generate cross section
N
Part B line of cross section shown on Plate 7A A’
Part B line of cross section shown on this plateE E’
Part A line of cross sectionA A’
LOCATION DIAGRAM
1 0 1 2 3 4 5 MILES
1 0 1 2 4 5 6 7 83 9 KILOMETERS
SCALE 1:100 000VERTICAL EXAGGERATION X 50
Groundwater sample with evaporative signatureE
*aquitard
Aquifers and aquitards grouped by stratigraphyQuaternary unconsolidated sedimentInterpreted tritium age is indicated by the background color. See Figure 5 in the report for geologic unit correlation.
Quaternary aquitards
Grouped by texture ranging from highest to lowest sand content indicating relative hydraulic conductivity.
Surficial sand and gravel
Buried aquifers and aquitards
Geologic unit code Percent sandmt, hwt, wrt
nt, mlt, wte
nht, sct, gt3, gt4, gt5, vt
>50% and ≤60%
>40% and ≤50%
>30% and ≤40%
Groundwater conditions
Symbols and labels
Land or bedrock surface
General groundwater flow direction
Geologic contact
Approximate equipotential contour; contour interval 25 feet
1100
Water table
Tritium age
Darker color in small vertical rectangle (well screen symbol) indicates tritium age of water sampled in well. Lighter color indicates interpreted age of water in aquifer.
Mixed: water is a mixture of recent and vintage waters (greater than 1 TU to less than 8 TU).
Well not sampled for tritium.
Vintage: water entered the ground before 1953 (less than or equal to 1 TU).
Recent: water entered the ground since about 1953 (8 to 15 tritium units [TU]).
CROSS SECTION EXPLANATION
Chloride: if shown, concentration is ≥5 ppm.(* naturally elevated)
18.4
Arsenic: if shown, concentration is ≥2 ppb.3.17
Manganese: if shown, concentration is ≥100 ppb.
Carbon-14 (14C): estimated groundwater residence time in years.
1200
183
nht*
nts
nt*
ms
mt*
hs
hwt*
scs
sct*
mls
mlt*
gs3
gt3*
gs4
gt4*
gs5
gt5*
wrs
wrt*
wes
wte*
vs
vt*
psu
pu
sc*
ss
Groundwater discharges to a surface-water body.
Groundwater flowpath is unknown.
Groundwater flows laterally.
Bedrock Dakota Formation
Cretaceous undifferentiated
Precambrian crystallinep_u
Ka
Kd
Groundwater sample with evaporative signatureE
*aquitard
Aquifers and aquitards grouped by stratigraphyQuaternary unconsolidated sedimentInterpreted tritium age is indicated by the background color. See Figure 5 in the report for geologic unit correlation.
Quaternary aquitards
Grouped by texture ranging from highest to lowest sand content indicating relative hydraulic conductivity.
Surficial sand and gravel
Buried aquifers and aquitards
Geologic unit code Percent sandmt, hwt, wrt
nt, mlt, wte
nht, sct, gt3, gt4, gt5, vt
>50% and ≤60%
>40% and ≤50%
>30% and ≤40%
Groundwater conditions
Symbols and labels
Land or bedrock surface
General groundwater flow direction
Geologic contact
Approximate equipotential contour; contour interval 25 feet
1100
Water table
Tritium age
Darker color in small vertical rectangle (well screen symbol) indicates tritium age of water sampled in well. Lighter color indicates interpreted age of water in aquifer.
Mixed: water is a mixture of recent and vintage waters (greater than 1 TU to less than 8 TU).
Well not sampled for tritium.
Vintage: water entered the ground before 1953 (less than or equal to 1 TU).
Recent: water entered the ground since about 1953 (8 to 15 tritium units [TU]).
CROSS SECTION EXPLANATION
Chloride: if shown, concentration is ≥5 ppm.(* naturally elevated)
18.4
Arsenic: if shown, concentration is ≥2 ppb.3.17
Manganese: if shown, concentration is ≥100 ppb.
Carbon-14 (14C): estimated groundwater residence time in years.
1200
183
nht*
nts
nt*
ms
mt*
hs
hwt*
scs
sct*
mls
mlt*
gs3
gt3*
gs4
gt4*
gs5
gt5*
wrs
wrt*
wes
wte*
vs
vt*
psu
pu
sc*
ss
Groundwater discharges to a surface-water body.
Groundwater flowpath is unknown.
Groundwater flows laterally.
Bedrock Dakota Formation
Cretaceous undifferentiated
Precambrian crystallinep_u
Ka
Kd
Groundwater Atlas of Meeker CountyCounty Atlas Series C-35, Part B
Plate 8 of 8Hydrogeologic Cross Sections
E–Eʹ through H–Hʹ
To accompany atlas Report and Plates 6–7.
Hydrogeologic Cross Sections
By Randy J. Bradt
2019
Minnesota Department of Natural ResourcesCounty Atlas Program mndnr.gov/groundwatermapping
Buried sand aquifers are listed in each section from the surface down to include the deepest buried sand aquifer that may have detectable tritium. Additional aquifers discussed include those with relevant carbon-14 residence time.
Cross Section E–EʹA total of 10 wells were sampled for tritium along this cross section from wells ranging in depth from 56 to 312 feet.
The ss aquifer deposits are at the land surface in scattered locations on top of the nt aquitard. The most extensive and thickest deposits are located between MN 22 and CSAH 14 in the middle of the cross section. Recent tritium-age water was mapped in this aquifer.
The hs aquifer was mapped as both mixed and vintage tritium age. All samples were collected from areas with very low pollution sensitivity. The mixed tritium-age results suggest lateral recharge from adjacent areas of higher sensitivity.
The scs aquifer is mostly well protected and was mapped as vintage tritium-age water. Mixed tritium-age water was found in a sample collected on the east end of the cross section where vintage tritium was expected. The source of mixed tritium is not discernable with the available information.
Cross Section F–FʹA total of 11 wells were sampled for tritium along this cross section from wells ranging from 65 to 158 feet deep.
The ss aquifer deposits are at the land surface on top of the nt aquitard near MN 22 in the middle of the cross section. Recent tritium-age water was mapped in this aquifer.
The nts aquifer is limited to locations near and slightly west of CSAH 1. The buried sands were all mapped as mixed tritium-age water.
The ms aquifer was mapped as vintage tritium-age water east of CSAH 14 where the nt aquitard is thicker, and west of CSAH 28 where the combined thickness of the nht and nt aquitards provide sufficient aquifer protection. Between these locations mixed tritium-age water is mapped where the aquifer is not as well protected. Groundwater recharge is likely moving laterally from adjacent higher sensitivity areas to the west where the overlying nts aquifer enhances recharge to this aquifer and possibly from Star Lake.
The hs aquifer was mapped as vintage tritium-age water in most locations. There is one exception just west of CSAH 1. A shallower nts aquifer appears to be connected to the underlying hs aquifer, thereby enhancing recharge to the deeper hs aquifer.
On the south shore of Lake Washington east of CSAH 14, two closely spaced wells had carbon-14 residence times of 1,300 years for the shallower 68-foot-deep well in the hs aquifer and 2,500 years for the deeper 130-foot-deep well in the scs aquifer.
Cross Section G–GʹNine wells were sampled for tritium in this cross section from wells ranging from 70 to 250 feet deep.
The ss aquifer deposits are at the land surface on top of the nt aquitard at three locations in the eastern portion of the cross section. Recent tritium-age water was mapped for this aquifer.
The nts aquifer was mapped as mixed tritium-age water for the single shallow buried aquifer found near CSAH 1.
The ms aquifer was mapped as vintage tritium-age water west of MN 22 because the nht and nt aquitards are both present. Mixed tritium-age water is mapped east of MN 22 where only the nt aquitard is present.
The scs and gs4 aquifers were mapped as vintage tritium-age water throughout. Just west of CSAH 1 two closely spaced wells having different depths were sampled for carbon-14 residence time. The shallower 97-foot-deep well in the scs aquifer dated 1,200 years old. The deeper 250-foot-deep well in the gs4 aquifer dated 5,500 years.
Cross Section H–HʹA total of 4 wells were sampled for tritium along this cross section from wells ranging from 60 to 195 feet deep.
The nts aquifer was mapped as mixed tritium-age water for these shallow buried aquifer units.
The ms aquifer was mapped as vintage tritium-age water with the exception of the far eastern Crow River, South Fork location where the overlying nht aquitard has been removed and the nt aquitard partially dissected.
This map was compiled and generated in a geographic information system. Digital data products are available from the DNR County Atlas Program at mndnr.gov/groundwatermapping.
This map was prepared from publicly available information. Every reasonable effort has been made to ensure the accuracy of the factual data on which this map interpretation is based. However, the DNR does not warrant the accuracy, completeness, or any implied uses of these data. Users may wish to verify critical information; sources include both the references in the report and information on file in the offices of the Minnesota Geological Survey and the DNR. Every effort has been made to ensure the interpretation shown conforms to sound geologic and cartographic principles. This map should not be used to establish legal title, boundaries, or locations of improvements.
Base modified from Minnesota Geological Survey, Meeker County Geologic Atlas, Part A, 2015.
Universal Transverse Mercator projection, zone 15N, North American Datum of 1983. North American Vertical Datum of 1988.
500 Lafayette Road St. Paul, MN 55155-4025 888-646-6367 or 651-296-6157 mndnr.gov
This information is available in alternative format on request.
The Minnesota DNR prohibits discrimination in its programs and services based on race, color, creed, religion, national origin, sex, public assistance status, age, sexual orientation, or disability. Persons with disabilities may request reasonable modifications to access or participate in DNR programs and services by contacting the DNR ADA Title II Coordinator at [email protected] or 651-259-6157. Discrimination inquiries should be sent to Minnesota DNR, 500 Lafayette Road, St. Paul, MN 55155-4049; or Office of Civil Rights, U.S. Department of the Interior, 1849 C Street NW, Washington, DC 20240.
© 2019, State of Minnesota, Department of Natural Resources and the Regents of the University of Minnesota
Prepared and published with the support of the Minnesota Environment and Natural Resources Trust Fund and the Clean Water, Land and Legacy Amendment
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