Drilling | Rock coring | Soil borings | Rochester, MN

Building on experience.

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Fleet of drill rigs to serve you

Chosen Valley Testing uses its fleet of drill rigs to provide drilling services to a wide variety of clients throughout the region. Our drillers take pride in their work and strive to produce accurate data in a timely matter.

  • Soil borings

  • Rock coring

  • In-situ testing

  • Contract drilling

  • Licensed monitoring well installation

Geotechnical/environmental drilling and exploration

The extra effort and flexibility of our department allows for quick responses and timely turn around for your project.


We don't practice in the field of environmental engineering, but do provide contract drilling services such as licensed monitoring well installation to outside consultants.

Contract services

Friendly staff



1410 7th St NW

Rochester, MN 55901

Office: 507-281-0968

Fax: 507-289-2523


St. Paul

245 Roselawn Ave. E.

Suite #29

St. Paul, MN 55117

Office: 651-756-7384

Fax: 651-888-6121


St. Cloud

414 37th Ave. North

St. Cloud, MN 56303

Office: 320-774-3500

Fax: 320-774-3554


La Crosse

1019 2nd Avenue SW

Onalaska, WI 54650

Office: 608-782-5505

Fax: 608-785-2818


Mason City

421 N. Georgia Ave.

Mason City, IA 50401

Office: 641-201-1050

Fax: 641-201-1012


Cedar Falls

3012 S. Hudson Road

Cedar Falls, IA 50613

Office: 319-242-8284

Fax: 319-242-8285

Drill Rig Fleet 75(1)