About Us

Tephra's proprietary Ready-Mix Green Cement

About Us

Tephra Environmental (“Tephra”) is a wholly owned subsidiary of JESCO Construction Corporation (JESCO). JESCO is a 45-year-old Service-Disabled Veteran / diversity-qualified Native American Owned company (Diversity Scorecard = 33) with a rich track record of delivering successful professional services to a wide array of industries including Department of Defense contracting, heavy civil, marine (including barging and dredging), oil and gas, disaster response, and utility services - where it specializes in the beneficial reuse of Coal Combustion Residuals (CCR), cap and closure, decommissioning and construction, and emergency response services.

JESCO is a private company with over 2,700 employees, an impeccable safety rating, no relevant or material environmental or stockholder claims or litigation, the ability to procure insurance for almost any sized project, and $1.2 Billion bonding capacity to stand behind its work.

Tephra Environmental performs the Beneficial Use components of JESCO’s CCR projects. As a wholly owned subsidiary, Tephra enjoys JESCO’s same bonding capacity, financial stability, access to capital, equipment, labor, resources, etc.

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The Tephra Benefit

Tephra Environmental assists power utilities to beneficially repurpose Coal Combustion Residuals (CCR) by treating the CCR with its proprietary technologies. Once treated, Tephra incorporates the CCR into an environmentally friendly green cement trade-named “GreenMix.” Tephra is able to beneficially use up to 10,000 tons of CCR per day in GreenMix, a rate which enables Tephra to completely eliminate its client’s coal ash storage facilities in a very short period of time.