Map showing location; logs showing lithology, natural gamma radiation count, and electrical conductivity of the basin-fill deposits; and hydrographs showing water-level fluctuations from September

1999 to July 2001 for monitoring wells installed in recently developed residential/commercial areas, Salt Lake Valley, Utah

By

Susan A. Thiros

2003 Printed on recycled paper

A Product of the National Water-Quality Assessment Program

Great Salt Lake Basins Study Unit Water-Resources Investigations Report 03–4029

Well logs and water-level hydrographs, Salt Lake Valley, Utah—PLATE 1

Thiros, Susan A., 2003,

Hydrogeology of shallow basin-fill deposits in areas of Salt Lake Valley, Salt Lake County, Utah

U.S. DEPARTMENT OF THE INTERIOR

U.S. GEOLOGICAL SURVEY

West

Valley

City

Taylorsville

West Jordan

South Jordan

Riverton

35

30

25

20

Well 1

40

Well 3

85

80

75

70

90

20

15

10

5

Well 4

25

30

25

20

15

Well 5

35

30

25

20

15

Well 6

35

30

25

20

15

Well 7

35

70

65

60

55

Well 8

75

80

75

70

65

Well 10

85

35

30

25

20

Well 14

40

20

15

10

5

Well 17

25

85

80

75

70

Well 18

90

85

80

75

70

Well 24

90

15

10

5

0

Well 29

20

60

55

50

45

Well 30

65

145

140

135

130

Well 31

150

75

70

65

60

Well 33

80

Location of monitoring wells installed in recently developed residential/commercial areas of Salt Lake Valley, Utah.

Base from U.S. Geological Survey digital line graph data,

1:100,000, 1979 and 1980

Universal Transverse Mercator projection, Zone 12

112°15'

 Great

 Salt

Lake

Tailings ponds

80

Approximate limit of basin-fill

deposits in Salt Lake Valley

0 3 6 MILES

0 3 6 KILOMETERS

40°30'

215

40°45'

111°37'30"

Salt Lake County

Jordan River

OQUIRRH MOUNTAINS

WASATCH RANGE

South Salt Lake

Draper

Sandy

Murray

Cottonwood

Heights

41

39

37

34

32

27 29 26

22 17 18

25

33

30 31

24

20

14

8 11

5

10 9

6

4

2

7

3

1

30

25

20

15

10

Well 2

S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A

1999 2001

15

10

5

0

Well 9

20

75

70

65

60

80

Well 11

S O N D J F M A M J J A S O N D J F M A M J J A

85

80

75

70

Well 20

90

85

80

75

70

90

Well 32

65

60

55

50

70

Well 27

60

35

30

25

20

40

Well 26S

Well 26D

35

30

25

20

40

S O N D J F M A M J J A S O N D J F M A M J J A

95

90

85

80

Well 39

100 S O N D J F M A M J J A S O N D J F M A M J J A

55

50

45

40

60

Well 37

Bear

Lake

UTAH

IDAHO

WYOMING

Great

 Salt

 Lake

Utah

Lake

Salt

Lake

City

Great

Salt Lake

Basins

study

unit

S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A S O N D J F M A M J J A

WATER LEVEL, IN FEET BELOW LAND SURFACE

2000 1999 2000 2001 1999 2000 2001 1999 2000 2001 1999 2000 2001 1999 2000 2001 1999 2000 2001 1999 2000 2001 1999 2000 2001

25

20

15

10

30

Well 22

0

5

10

15

20

25

30

35

40

Top soil

Sand

Sand

Total depth 36 feet

Sandy silty clay

Gravelly sand

Gravelly sand

Water

Natural gamma

Conductivity

Water level 21 feet

Well 22 Direction of

increasing value

Well 24

0

5

10

15

20

25

30

35

40

45

Top soil

Sandy clay

Silty clay with

sand

50

Gravel

Sandy clay with

gravel

55

60

65

70

75

80

85

90

95

100

Sand and gravel

Gravelly clay

Gravel

Sandy clay

with gravel

Gravel

Sandy clay with

gravel

Clay

Gravel

Sandy clay with

gravel

Gravel

Sandy clay with

gravel

Water

Natural

gamma

Conductivity

Water level 80 feet

Direction of

increasing value

Total depth

123.5 feet

105

110

115

120

125

Unknown

Gravel

Clayey top soil

Gravelly clay

Sandy gravel

Silty clay

Coarse sand

with gravel

Silty sand

Clayey sand

Gravelly sand

Silty clay

0

5

10

15

20

25

30

35

40

45

50

Clay

Natural

gamma

Conductivity

Total depth 106 feet

Water

55

60

65

70

75

80

85

90

95

100

105

110

Gravelly sand

Sand

Silty clay

Silt

Gravelly sandy silt

Sandy silt

Clay

Clay

Sandy clay

Gravel

Clay and sand

Gravel

Gravelly clay

Well 35

Direction of

increasing value

Well 1

0

5

10

15

20

25

30

35

40

45

Silty top soil

Clayey silt

Silty clay

Coarse sand

with cobbles

Sandy clay with gravel

Clayey coarse sand

with gravel

Coarse sand

Clayey coarse sand

Fine sand

Tight clay

Softer clay

Gravel and

clay in

coarse sand

50

Total depth 48.5 feet

Water level 32 feet

Water

Natural

gamma

Conductivity

Direction of

increasing value

Well 2

0

5

10

15

20

25

40

Top soil with gravel

Sandy gravel

Gravelly silty clay

Clayey silt

Gravel and clayey sand

Clayey silt with coarse

sand and gravel

Gravel and sand

30

35

Total depth 38.5 feet

Water

Water level 18.5 feet

Natural

gamma

Conductivity

Direction of

increasing value

Well 3

Silty sandy clay

Gravel

Clay

Gravel with

interbedded

clay and sand

Clay and sand with

interbedded gravel

Water level 80 feet

0

5

10

15

20

25

40

45

Sandy clayey gravel

Gravelly clayey

sand

Clay

Fine to medium

sandy clay

Gravel

30

35

Organic rich, gravelly

sandy clay

Gravelly clayey

sand

Fine gravelly sand

Sand

Sand and clay

Silty clay and

fine sand

50

Natural

gamma

Conductivity

Direction of

increasing value

Total depth

113.5 feet

Clay

Water

90

100

85

105

110

115

55

60

70

80

65

75

95

Well 4

0

5

10

15

20

25

30

35

40

Top soil

Gravel with clayey

fine sand

Fine sand with clay

Fine sand

Sandy clay

Total depth

38.5 feet

Silty sandy clay

Gravel and sand

Unknown

Water level 13 feet

Water

Natural

gamma

Conductivity

Direction of

increasing value

Well 5

0

5

10

15

20

25

30

35

40

45

Asphalt

Fine sand

Gravel and cobbles

Gravelly sand

Gravel with interbedded sand

Total depth

43.5 feet

Sand and gravel

Sand

Gravelly sand

Gravel fill with sand

Gravel

Gravel

Silty clay

Water level

26 feet

Water

Natural

gamma

Conductivity

Direction of

increasing value

Well 6

0

5

10

15

20

25

30

35

40

Top soil

Coarse sandy gravel

Sand and silty clay

Gravel

Silty clay with

sand

Total depth

38.5 feet

Clayey silty sand

Water

Clay

Gravel

Water level 23 feet

Natural

gamma

Conductivity

Direction of

increasing value

Well 7

0

5

10

15

20

25

30

35

40

45

Clay

Silty sand

Clay

Total depth

43.5 feet

Silty clay

Clayey silt

Unknown

Gravel

Clay

Silty clay

Silty clayey sand

Silty sand

Water

Clay

Water level

26 feet

Natural

gamma

Conductivity

Direction of

increasing value 0

5

10

15

20

25

30

35

40

45

Asphalt

Clayey silt

Clay, gravel,

and sand

Clayey sand

Gravelly silty

sand

Water

Clayey sand

Gravel and

sand

Sand

Silty sand

Clay

Sand

Well 8

Natural

gamma

Conductivity

50

Total depth 67.5 feet

65

60

70

Gravel

Cobbley gravel

Silty clayey sand

Water level 63.5 feet

Direction of

increasing value

55

0

5

10

15

20

25

30

35

40

Top soil

Silty sand with

interbedded

clayey silt

Clayey silt

Total depth 38.5 feet

Clay

Clayey silt

Sandy silt

Gravel

Water

Well 9

Water level 9 feet

Natural

gamma

Conductivity

Direction of

increasing value

Well 10

0

5

10

15

20

25

30

35

40

45

Sandy top soil

Clayey top soil

Silty clay

Clay

50

Gravelly clay

Silty clay

Gravelly clay

Clay

Natural

gamma

Conductivity

Total depth 83.5 feet

Clay

Water level 69 feet

55

60

65

70

75

80

Gravelly clay

Sandy gravel

Gravel

Sandy clay

Water

85

Direction of

increasing value 0

5

10

15

20

25

30

35

40

45

Road base

Sandy clayey

top soil

Silty sandy clay

Gravel

50 Sand

Silty clay

Gravel

Gravel

Silt and sand

Natural

gamma

Total depth 83.5 feet

Clay

55

60

65

70

75

80

Water

Sand and gravel

Sand

Water level 69.5 feet

Clay

Conductivity

85

Well 11

Direction of

increasing value 0

5

10

15

20

25

30

35

40

45

Top soil

Sandy silt

Sandy silty clay

Silty clay

50

Total depth 48.5 feet

Water

Natural

gamma

Conductivity

Water level 27.5 feet

Well 14

Direction of

increasing value

Well 18

0

5

10

15

20

25

30

35

40

45

Organic rich

silty clayey

top soil

Sand

Clayey silt

50

Silt

Silty clay

Sandy silty clay

55

60

65

70

75

80

85

90

95

100

Sand and gravel

Gravelly silty sand

Sand

Gravel and sand

Sand

Gravelly sand

Clayey gravel and sand

Clay

Sand

Gravel and sand

Sand

Clayey sand

Sand

Gravel and sand

Clayey gravelly sand

Clay

Sandy clay

Clayey sandy gravel

Gravelly sand

Sandy gravelly clay

Gravelly clayey sand

Gravelly sand

Clayey gravelly sand

Sandy silt

Clayey sand

Water

Natural

gamma

Water level 76 feet

Total depth 106 feet

105

110

Gravelly clayey sand Conductivity

Water

Direction of

increasing value

Well 20

0

5

10

15

20

25

30

35

40

45

Top soil

Silty clay

Clay

50

Total depth

92.5 feet

Gravel

Clayey gravel

with sand

Gravelly silty

clay with sand

Unknown

55

60

65

70

75

80

85

90

95

Silty clay

Unknown

Gravel

Gravel

Gravel

Gravel with

cobbles

Gravel

Gravel

Water level

84 feet

Clayey gravel

with sand

Natural

gamma

Conductivity

Direction of

increasing value

Water

Clay interbedded with

gravelly sand

Well 17

0

5

10

15

20

25

30

35

40

Top soil

Silty clay

Total depth 38.5 feet

Clay

Sandy clay

Water

Gravelly clay

Sandy clay

Natural

gamma

Conductivity

Water level 16.5 feet

Direction of

increasing value

Sandy top soil

Sand

Gravel

Total depth 73 feet

Clay

Water level 45 feet

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

Sand

Blue gray clay

Sand

Natural

gamma

Conductivity

Water

Well 37 Direction of

increasing value

Well 39

Sandy top soil

Clay

Silty clay

Coarse sand

Sandy silty clay

Silty clay with gravel

Sand with clay

Coarse sand

with gravel

Clay

0

5

10

15

20

25

30

35

40

45

50

Sand

Sandy clay

Gravelly sand

Sandy gravel

Natural

gamma

Conductivity

Direction of

increasing value

Clay

Silty clayey sand

Gravelly sand

55

60

65

70

75

80

85

90

95

100

Water

Water level

93.5 feet

Sand with clay

Sand

Gravelly sand

Sand

Clay 105

110

Total depth 106 feet

0

5

10

15

20

25

Coarse sand and top soil

Gravel

Sand

Sand and gravel

Total depth 23 feet

Silty very fine sand

Water level 5 feet

Coarse sand

Sand

Water

Natural

gamma

Conductivity

Well 41 Direction of

increasing value

Unconsolidated alluvium

Top soil

Sand

Coarse sand

Gravel

Cobbles

Clay

Silt

Bentonite clay in annular

space between well casing

and borehole wall

Electrical conductivity

Natural gamma radiation

Water level after well

completion—In feet below

land surface

Water level when well was

drilled—In feet below land

surface

Symbols for graphs below:

Pressure-sensor measured

water level

Tape-measured water level

EXPLANATION

0

5

10

15

20

25

30

35

40

45

Silty clayey top soil

Silty clay

Clay with sand

Gravel

50

Total depth 68.5 feet

55

60

65

Clay

Gravel with

interbedded clay

Gravel

Clay

Gravelly sand

Gravel

70

Water

Water level 48 feet

Natural

gamma

Conductivity

Well 25 Direction of

increasing value

0

5

10

15

20

25

30

35

40

45

Gravelly

sand

with

cobbles

Sand

50

Total depth 77.5 feet

Gravelly sand

55

60

65

70

75

Sand

Sandy silt with gravel

Sand with

interbedded

clay, moist

Water

Water level 23.5 feet

80

Natural

gamma

Conductivity

Well 26 Direction of

increasing value

DEPTH, IN FEET BELOW LAND SURFACE

0

5

10

15

20

25

30

35

Sand and clay

Total depth

34 feet

Clayey sand

Gravel, cobbles,

and sand

Clay

Sand and

clay layers

Sand

Water level 9 feet

Top soil

Medium-coarse sand

Water

Well 29

Natural

gamma

Conductivity

Direction of

increasing value

0

5

10

15

20

25

30

35

40

45

Top soil

Gravelly sand

Sand

Clayey sand

50

Medium sand

Fine sand

Clayey sand with

gravel

Clayey sand

Coarse sand

Natural

gamma

Conductivity

Total depth 73.5 feet

Sand with gravel

55

60

65

70

75

Clayey sand

Sand

Water

Water level 59 feet

Well 27 Direction of

increasing value

Well 30

0

5

10

15

20

25

30

35

40

45

50

Total depth

68.5 feet

55

60

65

70

Water level 57 feet

Clayey silt

Silty clay

Clayey sand

Clayey sand with

gravel

Clayey sand

Clayey sand with

gravel

Gravel

Sandy clay

Clayey sand

with gravel

Sandy clay

Sandy clay with

gravel

Natural

gamma

Conductivity

Water

Direction of

increasing value

Well 31

0

5

10

15

20

25

30

35

40

45

Top soil

Gravelly sand

with cobbles

Gravel

Gravelly sand

Sandy silty clay

with gravel

Gravel

Gravel

Sandy clay

Gravel

Sandy gravel

Natural

gamma

Conductivity

Direction of

increasing value

50

60

65

70

75

80

85

90

95

100

Gravel

Clayey sand

Clayey sand with

silt

Clay

Gravel

Gravelly clay

Clayey sand

Sandy gravel

55

Total depth 153.5 feet

Water level 145 feet

105

110

115

120

125

130

135

140

145

150

155

Gravel

Unknown

Clay with gravel

Water

Top soil

Sand with gravel

Sand

Sand

Total depth 88.5 feet

Sand with clay lenses

Sand interbedded

with gravel

Sand with gravel

Clay

Water level 76 feet

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

90

Sand with gravel

Sand

Sand

Clay with sand lenses

Water

Natural

gamma

Conductivity

Well 32 Direction of

increasing value

Well 33

Top soil

Sandy clay

Clayey silty sand

Sand and gravel

Total depth 96 feet

Sandy clay with gravel

Sandy clay

Gravel

Water level 75 feet

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

90

95

Silty clay

Clay

Clayey sand

Sandy gravel

Gravelly sand

Silty clay

Clayey sand

Sand and silt

Gravelly sand

Unknown

Sandy gravel

Clayey gravel

Gravelly sand

Sandy clay with

gravel

Natural

gamma

Conductivity

Direction of

increasing value

100

Sandy top soil

Gravelly sand

Sand

Clay

Total depth 77.5 feet

Sandy silty clay

Silty sand

Gravelly sand

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

80

Sand

Water level 58 feet

Water

Natural

gamma

Conductivity

Well 34 Direction of

increasing value

55

50

45

40

Well 25

65

60

55

50

70

Well 34

Well 41

15

10

5

0

20

WATER LEVEL, IN FEET BELOW LAND SURFACE

WATER LEVEL, IN FEET BELOW LAND SURFACE

35

Water

DEPTH, IN FEET BELOW LAND SURFACE DEPTH, IN FEET BELOW LAND SURFACE

Water level

below bottom

of well

15

SALT

LAKE

VALLEY