Hydrogeologic Cross Sections By James A. Berg and Meagan E. Harold
2017
GEOLOGIC ATLAS OF SHERBURNE COUNTY, MINNESOTA
COUNTY ATLAS SERIES SHERBURNE COUNTY
Atlas C-32, Plate 7 of 7 Hydrogeologic Cross Sections
To accompany these atlas componentsReport, Plate 6
STATE OF MINNESOTA DEPARTMENT OF NATURAL RESOURCES
500 Lafayette Road St. Paul, MN 55155-4025 For more information call 651-296-6157 or 888-646-6367 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. © 2017, State of Minnesota, Department of Natural Resourcesand the Regents of the University of Minnesota
This map was compiled and generated in a geographic information system. Digital data products are available from the DNR County Geologic 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, Sherburne County Geologic Atlas, Part A, 2013.Universal Transverse Mercator projection, zone 15N, North American Datum of 1983. North American Vertical Datum of 1988.GIS and cartography by James A. Berg, Meagan E. Harold, Valerie Woelfel, and Holly Johnson. Edited by Ruth MacDonald.
LOCATION DIAGRAM
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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G’
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Ele
vatio
n (fe
et)
G
Mis
siss
ippi
Riv
er
Elk
Riv
er
Mis
siss
ippi
Riv
er
Elk
Riv
er (c
ity)
94.315.9
13.1
32.1
23.314.4
ctr
nt ss
cse cte
ft2
ft1
ft1
csa
sctmls
nt sc cta
mls
csr
nt
mltfs2
fs1
ctr
Mss
ups
ctr
scscte
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880
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880
_w
_e_m
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Ele
vatio
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et)
F
Big
Lak
e
Trot
t Bro
ok
Big
Lak
e (c
ity)
Elk
Riv
er
Mis
siss
ippi
Riv
er
Tibb
its B
rook
75.373.4
22.148.4
19.13*
34.9
1.602.16
114
12.0
ft1
cte
cte
csass
mls
cse
csr
csr
fs2
csr
scs
ft1
nt
mltups
ctrcte
nt
ctrsct
nt
scs fs1ft1
sct
fs2
nt
mlt
Mss
fs1
mls
ctr
mls
cta
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920
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920
940
=u_m
_e
_w_tc
_e
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32.19*
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E’
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vatio
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et)
E
San
d D
unes
SF
St.
Fran
cis
Riv
er
Eag
le L
ake
Bec
ker
San
d D
unes
SF
Mis
siss
ippi
Riv
er
17.123.5
8.1
10.7
5.16
8.98
41.45.3
28.14.4
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cta
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ctr
scs
mlt
ctr nt
ups fs2
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cte
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cte
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csecse nt
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csrctr ctr
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scscte
csrnt940 940
940 940
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=u_m
_m
_e
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17.9
13
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D’
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Ele
vatio
n (fe
et)
D
Cle
ar L
ake
(city
)
Zim
mer
man
Elk
Riv
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Sna
ke R
iver
St.
Fran
cis
Riv
er
San
d D
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SF
Mis
siss
ippi
Riv
er
San
d D
unes
SF
11.8
17.319.5
7.2
5.64
8.2216.3
5.9
1.56
3.16
17.7
12.7
ctecsrcsr
upsmls
sscsr
csecse
csa
scs mls
ctrnt
cte
nt
csecse ctr
sct sct
ss
scs
fs1ft1
ctr
scs
Mss
ups
ctr
scs
csr
mlt mlt
ctr
nt
cte
960
980960
940 960
960960
_m
=u
_e
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C’C
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Ele
vatio
n (fe
et)
Elk
Lak
e
St.
Fran
cis
Riv
er
Sna
ke R
iver
Mis
siss
ippi
Riv
er
Long
Lak
e
10.0
5.89
26.4
14.47.09
26.8
9.19
5.8528.2
26.4
2.95
ups
scsctecte
ctr ctr
scs
cte
ss
mls
csr
upsfs2fs1
cse
mls
Mss
mlt
scs
ups
ntcta
cse
ft2
suu
ctrnt
ctectr
csrcse
sssc
sctft1
ss
fs1mlt
nt
sct
ctr
scs
csa
nt1000
960
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960
980
960
980
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960
940=u
_m
_e
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B’
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Ele
vatio
n (fe
et)
B
Brig
gs L
ake
Bat
tle B
rook
Mis
siss
ippi
Riv
er
Elk
Riv
er
St.
Fran
cis
Riv
er
9.61* 5.3
9.0
446.4213.7
12.129.07.74
105 11.1 2.991.02 23ctr
sct
ft1
cteft2
scscte
cteups
mls
csr
Mss
ctr
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csr
fs2
cse
ups
scs
mlssuu
ss
ctr
sct
ctactr
scs
mlt
scs
ss
csrcte
scs
csacsass
nt
nt
scs
nt
ctectr
mlt
cse
ctrcsr
ctr960 980
960
960
960
980
980 1000980
=u_m
_e
5.79
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A’
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Ele
vatio
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et)
A
=u
St.
Clo
ud
Elk
Riv
er
St.
Fran
cis
Riv
er
Mis
siss
ippi
Riv
er
Ric
e C
reek
Brig
gs C
reek
5.92
42.87.7
3.96 mls
nt
ctecte
sctft1
mlt
ctr
cse
ctrcte
ss
fs2
ft2cte
csr
suu
fs1sct
ft2
cse
ctr
Mss
ups
cse
mlt
suu
ctr
nt
ups
ctr
fs1
sssct csr csr
scsscs
ss cse
ss
cse
ups
_m
_m
csr
suu
ctrscs
nt
scsmls
1000
10001000
9801000
9601000
980
100022.5
2000
CROSS SECTION EXPLANATION
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 flowpath is unknown.
Groundwater discharges to a surface-water body.
Groundwater flows laterally.
Groundwater moves from an overlying buried aquifer to an underlying buried aquifer.
Groundwater conditions
Groundwater moves from an overlying surficial aquifer to a buried aquifer.
Water from the surface moves through a thin layer of overlying fine-grained material to an underlying aquifer.
If shown, chloride concentration equals or exceeds 5 ppm. (* indicates source of chloride is unknown)
32.1
If shown, nitrate-nitrogen concentration equals or exceeds 1 ppm.14.4
If shown, groundwater residence time in years as estimated by carbon-14 (14C) isotope analysis.
2000
Symbols and labels
Lake
Land or bedrock surface
General groundwater flow direction
Geologic contact
Approximate equipotential contour; contour interval 20 feet960
Water table
If shown, arsenic concentration equals or exceeds 10 ppb.12.7
Tritium ageDarker 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).
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]).
Well not sampled for tritium.
Hydrogeologic unit code Percent sand> 60%
> 50% and ≤ 60%
> 30% and ≤ 40%
≤ 30%
Quaternary aquitardsGrouped by texture ranging from highest to lowest sand content indicating relative hydraulic conductivity.
cta, ctr, ctentmltsct
suufs2
fs1scscsecsrcsa
mls
ss
Aquifers and aquitards grouped by stratigraphy
Surficial sand
Buried sand and gravel and Quaternary sediment
Bedrock
Interpreted tritium age is indicated by background color
Interpreted tritium age is indicated by pattern color
Eau Claire Formation*
Upper Tunnel City
Wonewoc
Precambrian crystalline bedrock*
Mt. Simon
Mesoproterozoic sedimentary bedrockincluding Hinckley and Fond du Lac
_e
_w
_tc
Mss
*aquitard
_m
Undifferentiated Pleistocene sediment (ups)
=u
Enhanced-permeability zone
Hydraulically connected combinations of surficial aquifer and portions of buried aquifers csa, csr,cse, and scs
EagleLake
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169
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¤
45° 15' N.
45° 22' 30" N.
45° 30' N.
93° 37' 30" W.93° 45' W.93° 52' 30" W.94° 07' 30" W. 94° W.
ClearLake
St. Cloud
Big Lake
Elk River
Zimmerman
Princeton
B
A
G
C
D
E
F
A’
B’
C’
D’
E’
F’
G’
A A’
B’B
C’C
D’D
E’E
F ’F
G ’G 11 20 3 4 5 MILES
11 20 3 4 5 6 7 KILOMETERS
SCALE 1:300 000
Symbols
Part B line of cross sectionWell used to generate cross section
A A’Part A line of cross sectionA A’
