Well Drilling Contractors & Geology Near Williamston, Michigan

Depth (Feet)	Formation Type	Description	Characteristics
0 – 10 ft	Sand/Clay (mixed)	Surface cover, brown to gray, loose to firm	Color: Brown/Gray Hardness: Soft/Medium
10 – 55 ft	Gravel and Sand, with Clay layers	Alternating layers, water-bearing in places	Color: Mixed, often gray/brown Hardness: Medium
55 – 120 ft	Dense Clay and some Gravel	Mostly gray clay; sections may include gravel or stones	Color: Gray Hardness: Hard
120 – 155 ft	Shale (white/gray/black, interbedded)	Transition from glacial sediments to bedrock; mostly shale, some sand or sandstone	Color: White, gray, or black Hardness: Hard
155 – 215 ft	Interbedded Shale and Sandstone	Predominantly shale, more sandstone towards base; occasional limestone beds	Color: Gray, white, black Hardness: Very Hard
215 – 300 ft	Sandstone, Shale, and occasional Limestone	Thick bedrock zone, yields increase in sandstone/limestone pockets	Color: Gray, white, tan Hardness: Very Hard
300 – 420 ft	Deep Bedrock (Sandstone/Shale/Minor Limestone)	Massive consolidated formations, not always reached in residential wells	Color: Gray, buff, white Hardness: Very Hard

Depth (Feet)

Formation Type

Description

Characteristics

0 – 10 ft

Sand/Clay (mixed)

Surface cover, brown to gray, loose to firm

Color: Brown/Gray
Hardness: Soft/Medium

10 – 55 ft

Gravel and Sand, with Clay layers

Alternating layers, water-bearing in places

Color: Mixed, often gray/brown
Hardness: Medium

55 – 120 ft

Dense Clay and some Gravel

Mostly gray clay; sections may include gravel or stones

Color: Gray
Hardness: Hard

120 – 155 ft

Shale (white/gray/black, interbedded)

Transition from glacial sediments to bedrock; mostly shale, some sand or sandstone

Color: White, gray, or black
Hardness: Hard

155 – 215 ft

Interbedded Shale and Sandstone

Predominantly shale, more sandstone towards base; occasional limestone beds

Color: Gray, white, black
Hardness: Very Hard

215 – 300 ft

Sandstone, Shale, and occasional Limestone

Thick bedrock zone, yields increase in sandstone/limestone pockets

Color: Gray, white, tan
Hardness: Very Hard

300 – 420 ft

Deep Bedrock (Sandstone/Shale/Minor Limestone)

Massive consolidated formations, not always reached in residential wells

Color: Gray, buff, white
Hardness: Very Hard

Well Drillers Near Williamston, Michigan

101 Well Service Contractors

Dyer Well Drilling

Aqua Haul

J&M Well Drilling & Service, Inc.

East Lansing Meridian Water & Sewer Auth

Putnam Well Drilling

Kleinschmidt Well Drilling

Doody Well Drilling

F & W Well Drilling, Inc.

Doody Well Drilling

Scharnweber Well Drilling, Inc.

Maurer & Parks Well Drilling Inc

Maurer & Parks Well Drilling Inc

Wilson Pump Inc

Marks Well Repair

Dyer Well Drilling & Service Inc

Dyer Well Drilling & Service, Inc.

Hall Well Drilling

Northern Pump & Well

Bendall Well Drilling & Water Softening

Adam's Well Drilling & Water Treatment

150 ft

39 ft

Rotary - Mud Circulation

Detailed Summary

Expected Geological Layers