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Green Tier Participant
to become a Green Tier participant.
DNR contact
John Stoffel
890 Spruce St
Baldwin. WI 54002
715-684-2914 ext. 121
Cell 715-928-0774
Fax 715-684-5940
Company contact
Michele Maxson
Regional EHS coordinator
W3302 Hwy 35 S
Maiden Rock. WI 54750
715-448-3006 Ext. 7241
Covia Holdings Corporation [exit DNR]

Covia Holdings Corporation EMS Certified to ISO 14001 Hager City, Maiden Rock and Menomonie
Tier 1 participant since 01/11/2013

Covia Holdings Corporation* strives to exceed sustainable development practices in its operations in Hager City, Maiden Rock and Menomonie, Wisconsin. The facilities specialize in processing high-quality industrial sand products for glass manufacturing, construction, animal bedding and oil and gas exploration.

Environmental activities

The company works closely with DNR to protect local wildlife populations by monitoring bat populations in its mines and collaborating with DNR and local Trout Unlimited chapters to restore nearby trout streams. The company’s EMS and sustainable development teams guide these and future improvements, including water footprint evaluations, alternative energy or energy efficiency projects at all facilities and a goal of zero waste by 2015. Since 2010, the company has:


Acceptance letter


*formerly Fairmount Santrol - Wisconsin Industrial Sand Company

Last revised: Thursday March 14 2019