Ground-water development in East St. Louis area, Illinois. Urbana, IL ...

Table 6.
Logs of Selected Wells*
Illinois Slate Geological Survey lest hole 3 (1954)—Roxana Water Works, SE
¼ NE ¼ SE¼ SE¼ sec 27, T5N, R9W, Madison Co. Samples studied by
R. E. Bergstrom. Est. elev. 445 feet.
Thickness
(ft)
Depth
(ft)
Pleistocene Series
Wisconsin or older Pleistocene
Clay and silt, yellowish brown,
noncalcareous 10 10
Silt and clay, with fine sand, yellowish
brown, lumps of pink clay,
slightly calcareous 5 15
Sand, fine, dirty, dark reddish
brown, calcareous, pink-stained
quartz grains 15 30
No samples 5 35
Sand, medium, light reddish brown,
calcareous, subrounded grains,
rhyolite porphyry, feldspar,
gray-wacke, milky chert 15 50
Sand, medium to coarse, as above 20 70
Sand, fine to very coarse, light brown,
dirty, gray silt, coal, mica 20 90
Sand, medium to coarse, light reddish
brown, subrounded to subangular
grains, abundant feldspar,
reddish siltstone and rhyolite
porphyry 15 105
Sand, coarse to medium, as above 10 115
Sand, very coarse, as above 5 120
Sand, very coarse, with granule
gravel, subangular to angular
grains, chert, reddish siltstone,
granite, gray-wacke 5 127
Pennsylvanian System
Shale, gray and brown 9.5 136.5
Sinclair OH Company well 2 (1952)—150 feet If, 1750 feet E of SW corner sec
34. T5N, R9W, Madison Co. Samples studied by R. E. Bergstrom. Est. elev.
431 feet.
Thickness
(ft)
Depth
(ft)
Pleistocene Series
Recent alluvium
No samples 35 35
Sand, very fine, well sorted, olive
gray, mollusk shell fragments,
abundant mica, coal, wood 35 70
Silt and clay, with fine sand and
small gravel, pebbles to % inch,
mollusk shell fragments, calcareous 5 75
Wisconsin or older Pleistocene
Sand, medium to coarse, yellowish
brown, dry sample has pinkish
cast, grains subrounded to rounded,
slightly calcareous 40 115
Sand and pebble gravel, pebbles to
1.5 inches in diameter, abundant
chert, limestone, gray-wacke,
rhyolite 7.5 122.5
Illinois Geological Survey test hole 2 (1954)—Lutton farm: 4300 feet S of 80 ○
32'30" N, 5200 feet E of 90° 15' W, Cahokia Quadrangle, St. Clair Co.
Studied by R. E. Bergstrom. Est. elev. 405 feet.
Thickness
(ft)
Depth
(ft)
Pleistocene Series
Recent and older alluvium
Silt and clay, dark brownish gray 5 5
Silt and clay, with fine sand, dark
brownish gray, calcareous, mica 10 15
Sand, fine to medium, dirty, dark
olive gray, mica, wood fragments,
coal, tiny calcareous spicules,
shell fragments 30 45
Sand, coarse to very coarse, with
granule gravel, abundant feldspar,
granite, gray-wacke, chert, and
dolomite granules 30 75
Gravel, granule size, with coarse to
very coarse sand, quartz, granite,
chert, dolomite granules (driller
reports boulders) 20 95
Gravel, granule size with broken
limestone rock, chert (pebble count
of 50 pebbles—15 gray-wacke and
fine-grained basic igneous rock; 12
chert, brown, reddish, and creamcolored;
11 quartz; 3 feldspar; 4
limestone; 4 granite; 1 dolomite);
broken rock consists of sharp
angular limestone, granite, rhyolite
porphyry, and chert 10 105
Broken rock (limestone rubble above
solid bedrock?) and granule gravel 7.5 112.5
Union Starch and Refining Company (1952)—950 feet S of 38°42'30" N,
2350 feet E of 90 ○ 10' W, J3N, R10W, Madison Co. Illinois Geological Survey
sample set 23406. Studied by R. E. Bergstrom. Est. elev. 4i2 feet.
Thickness
(ft)
Depth
(ft)
Pleistocene Series
Recent and older alluvium
Soil, clay, and silt, dark gray 10 10
Sand, fine to coarse, subangular
grains, abundant feldspar, tiny calcareous
spicules, coal 30 40
Sand, medium, with granule gravel,
as above, mollusk shell fragments 10 50
Sand, fine, with granule gravel,
poor sorting, calcareous spicules,
abundant dark grains of igneous
rocks, ferromagnesium minerals,
coal 10 60
Gravel, granule size, with coarse
sand, granules mainly igneous
rocks and feldspar 10 70
No samples 10 80
Sand, medium to fine, calcareous
spicules, subangular grains, coal 10 90
No samples 5 95
10