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Well Drillers Near De Pere, Wisconsin

De Pere area residential wells typically encounter a sequence of clay, sandy clay/gravel, limestone/dolomite, shale, and sometimes deeper sandstone below.

Showing contractors within 60 miles of De Pere. 31 results found.

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A geological estimate for the De Pere area.

120 ft

Typical Well Depth

45 ft

Static Water Level

Rotary - Mud Circulation

Recommended Method

Detailed Summary

Based on synthesis of well construction reports for De Pere and adjacent areas, the most representative profile begins with a surface interval of clay or sandy clay (~20-50 ft thick), often with underlying sandy gravel (to 60-110 ft), transitioning into limestone/dolomite which can extend for several hundred feet. A substantial shale layer is commonly present, frequently below 50–70 ft and continuing for several hundred feet (when deep drilling occurs), occasionally separated into upper and lower limestone units. At greater depths (commonly ~300–650 ft, where deeper drilling is performed), sandstone is encountered. Shale is more variable but generally appears as a major confining layer within the limestone sequence. Water yields are variable but strong, with static levels from 10 to 420 ft and typical residential wells completed between ~60 and 220 ft depending on yield needs.

Expected Geological Layers

Depth (Feet)Formation TypeDescriptionCharacteristics
0 – 20 ftClaySurface clay, often brown or gray, sometimes silty or mixed with some sandColor: Brown to gray
Hardness: Soft
20 – 60 ftSandy clay/gravelSandy clay or clay with gravel, sometimes includes minor hardpan or silt; variable thicknessColor: Brown, tan, or mixed
Hardness: Medium
60 – 70 ftFractured limestone (occasional)Thin zone of fractured limestone; local but common at formation topColor: Light gray
Hardness: Very hard
70 – 220 ftLimestone/DolomiteMassive limestone or dolomite sequence, can include cherty or shaley beds; primary aquifer for most wellsColor: Gray to tan
Hardness: Hard
220 – 420 ftShaleThick, dark gray to black shale, acts as aquitard/confining unit. Sometimes split by more limestone layers in deeper wells.Color: Gray to black
Hardness: Soft to firm
420 – 630 ftLimestone/Dolomite (deep)Deeper limestone/dolomite units, often underlying shale; not always penetrated in standard residential wellsColor: Gray
Hardness: Hard
630 – 680 ftSandstoneBasal sandstone, water-bearing when reached; often red or tan, variable cementationColor: Reddish tan
Hardness: Medium to hard