|
I
<br />900
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />300
<br />250
<br />200
<br />150Elevation (feet)900
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />300
<br />250
<br />200
<br />150
<br />I’Mississippi RiverFridleyRice Creek860
<br />840820
<br />Oo
<br />cr
<br />sx
<br />_w
<br />rt
<br />sl
<br />Osp
<br />_j
<br />pt
<br />_e
<br />_tc
<br />_tc lower
<br />lc
<br />se
<br />ss
<br />nu
<br />rt
<br />_m
<br />xtce
<br />Os
<br />lc
<br />_sl
<br />sc
<br />H
<br />Elevation (feet)900
<br />950
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />300
<br />250
<br />200
<br />150
<br />900
<br />950
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />300
<br />250
<br />200
<br />150
<br />H’Lino LakesBlaineRice LakeMississippi RiverSherman LakeCoon RapidsReshanau LakeWards LakeCoon Creek8
<br />4
<br />0
<br />880
<br />8609006.81
<br />u
<br />Os
<br />nu
<br />sp
<br />sc
<br />_tc
<br />_tc_tc lower
<br />_tc lower
<br />_sl
<br />_slu
<br />_w
<br />se
<br />sr
<br />_e
<br />_j
<br />_m
<br />xt
<br />rt
<br />sesx
<br />fs
<br />fs nu
<br />lc
<br />ss
<br />scce
<br />_j
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<br />_sl rt
<br />Osp
<br />sl
<br />cr
<br />sl
<br />lc
<br />sr
<br />sx
<br />ce ce
<br />xt
<br />xt
<br />ce
<br />ce ce
<br />lc
<br />_j Oo
<br />fs
<br />G
<br />Elevation (feet)900
<br />950
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />900
<br />950
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />G’Mississippi RiverPeltier LakeLochness ParkCoon CreekGeorge Watch Lake88086
<br />0
<br />84
<br />0
<br />88
<br />0
<br />900
<br />5000
<br />2000
<br />56.6
<br />12.1
<br />94
<br />vt
<br />ce
<br />ss
<br />ce
<br />_sl
<br />_sl
<br />_sl
<br />_sl
<br />sx
<br />crce cr
<br />Os
<br />_j
<br />sp
<br />sesc
<br />xt
<br />sp
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<br />_w
<br />u
<br />rt
<br />Oo
<br />rt
<br />sp
<br />lc
<br />_j xt
<br />_tc _tc
<br />_tc
<br />_tc lower _tc lower
<br />_tc lower
<br />rt rtrt
<br />lc
<br />cert
<br />_j
<br />sl
<br />nu
<br />sx
<br />vt
<br />lc
<br />u
<br />_e
<br />nu
<br />scsc
<br />fs
<br />cr
<br />cecese
<br />xtce
<br />F
<br />Elevation (feet)900
<br />950
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />300
<br />900
<br />950
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />300
<br />F’Rondeau LakeRum RiverMississippi RiverCrooked LakeBunker Hills ParkLexington Avenue900
<br />8
<br />6
<br />0
<br />8408804000
<br />10,000
<br />13.4
<br />11.3
<br />13.4
<br />42.0
<br />41.1
<br />25.6
<br />120*
<br />20,000
<br />32.1*
<br />21.0*
<br />184
<br />lc
<br />ce
<br />ss
<br />sx
<br />cr
<br />xt
<br />ce
<br />lc
<br />lc
<br />ce
<br />sp
<br />_e
<br />_e
<br />sp
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<br />u
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<br />_sl
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<br />_tc lower
<br />fs
<br />sc
<br />nu
<br />fs
<br />nu
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<br />ce
<br />lc
<br />nu
<br />ce
<br />xt
<br />cr
<br />se
<br />sp
<br />cr
<br />_tc
<br />45°15' N.
<br />45°22'30" N.
<br />93°30' W.
<br />93°15' W.
<br />93°22'30" W.
<br />93°07'30" W.
<br />45°07'30" N.)610
<br />10
<br />)47
<br />)47 )65
<br />)242
<br />35W
<br />35E
<br />694
<br />Columbia
<br />Heights
<br />Anoka
<br />Centerville
<br />St. Francis
<br />Circle
<br />Pines
<br />B
<br />C
<br />D
<br />E
<br />F
<br />G
<br />H
<br />A
<br />B’
<br />B B’
<br />C’
<br />C C’
<br />D’
<br />D D’
<br />E’
<br />E E’
<br />F’
<br />F F’
<br />G’
<br />H’
<br />I I’
<br />A’A A’
<br />1 0 1 2 3 4
<br />SCALE 1:300 000
<br />1 0 1 2 4 5 6 7 83 9 KILOMETERS
<br />5 MILES
<br />Symbols
<br />Part B line of cross section shown
<br />on this plate
<br />Well used to generate cross section
<br />F F’
<br />Part B line of cross section not
<br />shown on this plate
<br />A A’
<br />Part A line of cross sectionAA’
<br />1 0 1 2 3 4 5 MILES
<br />1 0 1 2 4 5 6 7 83 9 KILOMETERS
<br />SCALE 1:100 000
<br />VERTICAL EXAGGERATION X 50
<br />COUNTY ATLAS SERIES
<br />ANOKA COUNTY
<br />ATLAS C-27, PART B, PLATE 9 of 9
<br />Hydrogeologic Cross Sections
<br />F–F’ through I–I’
<br />Hydrogeologic Cross Sections
<br />By James A. Berg
<br />2016
<br />STATE OF MINNESOTA
<br />DEPARTMENT OF NATURAL RESOURCES
<br />ECOLOGICAL AND WATER RESOURCES DIVISION
<br />Prepared and Published with the Support of the
<br />MINNESOTA ENVIRONMENT AND NATURAL RESOURCES TRUST FUND
<br /> and the CLEAN WATER, LAND AND LEGACY AMENDMENT
<br />This map was compiled and generated in a geographic information system (GIS). Digital
<br />data products, including chemistry data, are available from the Minnesota Department of
<br />Natural Resources (DNR) Ecological and Water Resources Division at
<br />http://www.mndnr.gov/waters.
<br />This map was prepared from publicly available information. Every reasonable effort
<br />has been made to ensure the accuracy of the factual data on which this map interpreta-
<br />tion is based. However, the DNR does not warrant the accuracy, completeness, or any
<br />implied uses of these data. Users may wish to verify critical information; sources include
<br />both the references in the report and information on file in the offices of the Minnesota
<br />Geological Survey and the DNR. Every effort has been made to ensure the interpretation
<br />shown conforms to sound geologic and cartographic principles. This map should not be
<br />used to establish legal title, boundaries, or locations of improvements.
<br />Base modified from Minnesota Geological Survey, Anoka County Geologic Atlas, Part
<br />A, 2013.
<br />Universal Transverse Mercator projection, zone 15N, North American Datum of 1983.
<br />North American Vertical Datum of 1988.
<br />GIS and cartography by James A. Berg and Holly Johnson. Edited by Ruth MacDonald.
<br />GEOLOGIC ATLAS OF ANOKA COUNTY, MINNESOTA
<br />The DNR Information Center
<br />Minnesota Department of Natural Resources
<br />Ecological and Water Resources Division
<br />500 Lafayette Road
<br />St. Paul, MN 55155-4025
<br />For more information call 651-296-6157 or 888-646-6367
<br />http://www.mndnr.gov/waters
<br />This information is available in alternative format on request.
<br />The Minnesota DNR prohibits discrimination in its programs and services based on
<br />race, color, creed, religion, national origin, sex, public assistance status, age, sexual
<br />orientation or disability. Persons with disabilities may request reasonable modifications
<br />to access or participate in DNR programs and services by contacting the DNR ADA
<br />Title II coordinator at info.dnr@state.mn.us or 651-259-5488. Discrimination inquiries
<br />should be sent to Minnesota DNR, 500 Lafayette Road, St. Paul, MN 55155-4049; or
<br />Office of Civil Rights, U.S. Department of the Interior, 1849 C Street NW, Washington,
<br />DC 20240.
<br />© 2016, State of Minnesota, Department of Natural Resources
<br />and the Regents of the University of MinnesotaLOCATION DIAGRAM
<br />I
<br />900
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />300
<br />250
<br />200
<br />150Elevation (feet)900
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />300
<br />250
<br />200
<br />150
<br />I’Mississippi RiverFridleyRice Creek860
<br />84082
<br />0
<br />Oo
<br />cr
<br />sx
<br />_w
<br />rt
<br />sl
<br />Osp
<br />_j
<br />pt
<br />_e
<br />_tc
<br />_tc lower
<br />lc
<br />se
<br />ss
<br />nu
<br />rt
<br />_m
<br />xtce
<br />Os
<br />lc
<br />_sl
<br />sc
<br />H
<br />Elevation (feet)900
<br />950
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />300
<br />250
<br />200
<br />150
<br />900
<br />950
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />300
<br />250
<br />200
<br />150
<br />H’Lino LakesBlaineRice LakeMississippi RiverSherman LakeCoon RapidsReshanau LakeWards LakeCoon Creek8
<br />4
<br />0
<br />880
<br />8609006.81
<br />u
<br />Os
<br />nu
<br />sp
<br />sc
<br />_tc
<br />_tc_tc lower
<br />_tc lower
<br />_sl
<br />_slu
<br />_w
<br />se
<br />sr
<br />_e
<br />_j
<br />_m
<br />xt
<br />rt
<br />sesx
<br />fs
<br />fsnu
<br />lc
<br />ss
<br />scce
<br />_j
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<br />_j
<br />_slrt
<br />Osp
<br />sl
<br />cr
<br />sl
<br />lc
<br />sr
<br />sx
<br />cece
<br />xt
<br />xt
<br />ce
<br />cece
<br />lc
<br />_jOo
<br />fs
<br />G
<br />Elevation (feet)900
<br />950
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />900
<br />950
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />G’Mississippi RiverPeltier LakeLochness ParkCoon CreekGeorge Watch Lake88086
<br />0
<br />84
<br />0
<br />88
<br />0
<br />900
<br />5000
<br />2000
<br />56.6
<br />12.1
<br />94
<br />vt
<br />ce
<br />ss
<br />ce
<br />_sl
<br />_sl
<br />_sl
<br />_sl
<br />sx
<br />crcecr
<br />Os
<br />_j
<br />sp
<br />sesc
<br />xt
<br />sp
<br />sl
<br />_w
<br />u
<br />rt
<br />Oo
<br />rt
<br />sp
<br />lc
<br />_jxt
<br />_tc_tc
<br />_tc
<br />_tc lower_tc lower
<br />_tc lower
<br />rtrtrt
<br />lc
<br />cert
<br />_j
<br />sl
<br />nu
<br />sx
<br />vt
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<br />u
<br />_e
<br />nu
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<br />fs
<br />cr
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<br />xtce
<br />F
<br />Elevation (feet)900
<br />950
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />300
<br />900
<br />950
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />300
<br />F’Rondeau LakeRum RiverMississippi RiverCrooked LakeBunker Hills ParkLexington Avenue900
<br />8
<br />6
<br />0
<br />8408804000
<br />10,000
<br />13.4
<br />11.3
<br />13.4
<br />42.0
<br />41.1
<br />25.6
<br />120*
<br />20,000
<br />32.1*
<br />21.0*
<br />184
<br />lc
<br />ce
<br />ss
<br />sx
<br />cr
<br />xt
<br />ce
<br />lclc
<br />ce
<br />sp
<br />_e
<br />_e
<br />sp
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<br />scce
<br />rt_j
<br />u
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<br />lc
<br />nu
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<br />cr
<br />_tc
<br />45°15' N.
<br />45°22'30" N.
<br />93°30' W.
<br />93°15' W.
<br />93°22'30" W.
<br />93°07'30" W.
<br />45°07'30" N.)610
<br />10
<br />)47
<br />)47 )65
<br />)242
<br />35W
<br />35E
<br />694
<br />Columbia
<br />Heights
<br />Anoka
<br />Centerville
<br />St. Francis
<br />Circle
<br />Pines
<br />B
<br />C
<br />D
<br />E
<br />F
<br />G
<br />H
<br />A
<br />B’
<br />B B’
<br />C’
<br />C C’
<br />D’
<br />D D’
<br />E’
<br />E E’
<br />F’
<br />F F’
<br />G’
<br />H’
<br />I I’
<br />A’A A’
<br />1 0 1 2 3 4
<br />SCALE 1:300 000
<br />1 0 1 2 4 5 6 7 83 9 KILOMETERS
<br />5 MILES
<br />Symbols
<br />Part B line of cross section shown
<br />on this plate
<br />Well used to generate cross section
<br />F F’
<br />Part B line of cross section not
<br />shown on this plate
<br />A A’
<br />Part A line of cross sectionAA’
<br />1012345 MILES
<br />1 0 1 24 5 6 7 839 KILOMETERS
<br />SCALE 1:100 000
<br />VERTICAL EXAGGERATION X 50
<br />I
<br />900
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />300
<br />250
<br />200
<br />150Elevation (feet)900
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />300
<br />250
<br />200
<br />150
<br />I’Mississippi RiverFridleyRice Creek860
<br />84082
<br />0
<br />Oo
<br />cr
<br />sx
<br />_w
<br />rt
<br />sl
<br />Osp
<br />_j
<br />pt
<br />_e
<br />_tc
<br />_tc lower
<br />lc
<br />se
<br />ss
<br />nu
<br />rt
<br />_m
<br />xtce
<br />Os
<br />lc
<br />_sl
<br />sc
<br />H
<br />Elevation (feet)900
<br />950
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />300
<br />250
<br />200
<br />150
<br />900
<br />950
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />300
<br />250
<br />200
<br />150
<br />H’Lino LakesBlaineRice LakeMississippi RiverSherman LakeCoon RapidsReshanau LakeWards LakeCoon Creek8
<br />4
<br />0
<br />880
<br />8609006.81
<br />u
<br />Os
<br />nu
<br />sp
<br />sc
<br />_tc
<br />_tc_tc lower
<br />_tc lower
<br />_sl
<br />_slu
<br />_w
<br />se
<br />sr
<br />_e
<br />_j
<br />_m
<br />xt
<br />rt
<br />sesx
<br />fs
<br />fs nu
<br />lc
<br />ss
<br />scce
<br />_j
<br />pt
<br />_j
<br />_sl rt
<br />Osp
<br />sl
<br />cr
<br />sl
<br />lc
<br />sr
<br />sx
<br />ce ce
<br />xt
<br />xt
<br />ce
<br />ce ce
<br />lc
<br />_j Oo
<br />fs
<br />G
<br />Elevation (feet)900
<br />950
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />900
<br />950
<br />850
<br />800
<br />750
<br />700
<br />650
<br />600
<br />550
<br />500
<br />450
<br />400
<br />350
<br />G’Mississippi RiverPeltier LakeLochness ParkCoon CreekGeorge Watch Lake88086
<br />0
<br />84
<br />0
<br />88
<br />0
<br />900
<br />5000
<br />2000
<br />56.6
<br />12.1
<br />94
<br />vt
<br />ce
<br />ss
<br />ce
<br />_sl
<br />_sl
<br />_sl
<br />_sl
<br />sx
<br />crce cr
<br />Os
<br />_j
<br />sp
<br />sesc
<br />xt
<br />sp
<br />sl
<br />_w
<br />u
<br />rt
<br />Oo
<br />rt
<br />sp
<br />lc
<br />_j xt
<br />_tc _tc
<br />_tc
<br />_tc lower _tc lower
<br />_tc lower
<br />rt rtrt
<br />lc
<br />cert
<br />_j
<br />sl
<br />nu
<br />sx
<br />vt
<br />lc
<br />u
<br />_e
<br />nu
<br />scsc
<br />fs
<br />cr
<br />cecese
<br />xtce
<br />FElevation (feet)900950850800750700650600550500450400350300 900950850800750700650600550500450400350300F’Rondeau LakeRum RiverMississippi RiverCrooked LakeBunker Hills ParkLexington Avenue900860840 880400010,000 13.411.3 13.442.041.1 25.6120*20,00032.1*21.0*184 lcce ss sxcrxtcelclc cesp_e_esprtsr_tc _w sccert _juxtrt_jxtrtcessu_tc_tc rt cr_tcse_m uptnuu _sl _slOosl_tc lower _tc lowerfssc nufsnu_sl ce lcnucextcrsespcr _tc
<br />45°15' N.
<br />45°22'30" N.
<br />93°30' W.
<br />93°15' W.
<br />93°22'30" W.
<br />93°07'30" W.
<br />45°07'30" N.)610
<br />10
<br />)47
<br />)47 )65
<br />)242
<br />35W
<br />35E
<br />694
<br />Columbia
<br />Heights
<br />Anoka
<br />Centerville
<br />St. Francis
<br />Circle
<br />Pines
<br />B
<br />C
<br />D
<br />E
<br />F
<br />G
<br />H
<br />A
<br />B’
<br />B B’
<br />C’
<br />C C’
<br />D’
<br />D D’
<br />E’
<br />E E’
<br />F’
<br />F F’
<br />G’
<br />H’
<br />I I’
<br />A’A A’
<br />1 0 1 2 3 4
<br />SCALE 1:300 000
<br />1 0 1 2 4 5 6 7 83 9 KILOMETERS
<br />5 MILES
<br />Symbols
<br />Part B line of cross section shown
<br />on this plate
<br />Well used to generate cross section
<br />F F’
<br />Part B line of cross section not
<br />shown on this plate
<br />A A’
<br />Part A line of cross sectionAA’
<br />1 0 1 2 3 4 5 MILES
<br />1 0 1 2 4 5 6 7 83 9 KILOMETERS
<br />SCALE 1:100 000
<br />VERTICAL EXAGGERATION X 50
<br />CROSS SECTION EXPLANATION
<br />Groundwater flowpath is unknown.
<br />Groundwater flows laterally.
<br />Tritium concentrations may be artificially elevated by high capacity pumping.
<br />Groundwater moves from an overlying buried aquifer to an underlying
<br />buried aquifer.
<br />Groundwater conditions
<br />Groundwater moves from an overlying surficial aquifer to a buried aquifer.
<br />If shown, chloride concentration equals or exceeds 5 parts per million.
<br />(* indicates naturally elevated values)
<br />41.1
<br />If shown, groundwater residence time in years as estimated by carbon-14
<br />(14C) isotope analysis.
<br />3000
<br />Symbols and labels
<br />Lake
<br />Land or bedrock surface
<br />General groundwater flow direction
<br />Geologic contact
<br />Approximate equipotential contour; contour interval 20 feet900
<br />Water table
<br />Direction of fault movement, arrows indicate relative movement
<br />Tritium age
<br />Darker color in small vertical rectangle (well screen symbol) indicates tritium age of
<br />water sampled in well. Lighter color indicates interpreted age of water in aquifer.
<br />Mixed: water is a mixture of recent and vintage waters (greater than 1 TU
<br />to less than 8 TU).
<br />Vintage: water entered the ground before 1953 (less than or equal to 1 TU).
<br />Recent: water entered the ground since about 1953 (8 to 15 TU).
<br />Cold War era: water entered the ground during the peak period of atmospheric
<br />tritium concentration during nuclear bomb testing, 1958–1959 and 1961–1972
<br />(greater than 15 tritium units [TU]).
<br />If shown, arsenic concentration equals or exceeds 10 parts per billion.13.4
<br />Well not sampled for tritium.
<br />Groundwater discharges to a surface-water body.
<br />Quaternary aquitards
<br />Grouped by texture ranging from highest to lowest sand content indicating relative
<br />hydraulic conductivity.
<br />Hydrogeologic unit code Percent sand
<br />cr, ce, rt, lc (sandy)
<br />nu
<br />xt, pt
<br />lc
<br />> 60%
<br />> 40% and ≤ 50%
<br />> 30% and ≤ 40%
<br />≤ 30%
<br />sl
<br />sc
<br />se
<br />sx
<br />sr
<br />sp
<br />Undifferentiated
<br />sediment (u)
<br />ss
<br />Aquifers and aquitards grouped by stratigraphy
<br />Surficial sand
<br />Buried sand and gravel
<br />and Quaternary sediment
<br />Bedrock
<br />St. Peter
<br />Shakopee
<br />Oneota Dolomite*
<br />Jordan
<br />St. Lawrence Formation*
<br />Upper Tunnel City
<br />Lower Tunnel City*
<br />Wonewoc
<br />Eau Claire Formation*
<br />Mt. Simon (not shown in areas
<br />where data were not available)
<br />Enhanced-permeability zone
<br />near the bedrock surface
<br />Osp
<br />Os
<br />Oo
<br />_j
<br />_sl
<br />_tc
<br />_w
<br />_e
<br />_m
<br />Interpreted tritium age is
<br />indicated by background color
<br />Interpreted tritium age is
<br />indicated by pattern color
<br />_tclower
<br />*aquitard
|