83+ sites. One team. Proven results.

More project areas remediated on Navajo Nation lands than any other contractor in the Four Corners region — with a full regulatory closure record.

SBA 8(a) Certified
Navajo Nation Priority 2
US NRC #39-35044-01
Native American Woman-Owned

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Project Areas

Navajo Nation AML sites

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AML Projects

Abandoned mine reclamations

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Years Operating

Clawson on Navajo Nation

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Active Projects

New Mexico AUMRI 2026

Currently Active

Active Projects

Two concurrent project areas under New Mexico's Abandoned Uranium Mine Reclamation Initiative — the first state program to fund reclamation of legacy uranium mines in the Grants Mining District.

Field technician conducting GPS survey at Schmitt Decline Mine, Grants Mining District NM
Active 2026 · New Mexico AUMRI

New Mexico AUMRI

Schmitt Decline Mine

Grants Mining District, NM

First project initiated under New Mexico's Abandoned Uranium Mine Reclamation Initiative. The site represents a legacy of mid-20th century uranium development. Project scope includes preparing and executing field studies, developing a detailed site assessment proposing cleanup alternatives, and providing radiological and radon surveys with remediation activities.

  • Mine Reclamation
  • Radiological
  • New Mexico
Heavy equipment mobilized at remote mine site, Grants Mining District NM
Active 2026 · New Mexico AUMRI

New Mexico AUMRI

Red Rock Mine

Grants Mining District, NM

Second concurrent project area under the New Mexico AUMRI program, also located in the Grants Mining District. Same reclamation scope as Schmitt Decline Mine — initiated concurrently in 2026.

  • Mine Reclamation
  • Radiological
  • New Mexico

Track Record

Completed Projects

A selection of completed contract performance across federal AML, CERCLA, radiological D&D, and FUSRAP programs. Expand any card for project scope details.

Chacoan I

Sanostee, Newcomb, Coyote Canyon, NM · Navajo AML · 2016

  • Coal AML
  • Navajo Nation
  • OSM Award

Reclaimed seven mine sites: 45,000 CY of coal fire excavation; 941 CY of gabion baskets; 52,746 CY of earthwork; rock mulch; concrete grout mix; concrete cloth; pipe work and revegetation. Received the OSM Western Regional Award upon completion.

Chacoan II

Pine Springs, Black Mesa, Window Rock, AZ · Navajo AML

  • AML Reclamation
  • Navajo Nation

Reclaimed three mine sites: 47,770 CY of earthwork; GOB removal; reseed; ChemGuard application; tree removal; installed 160 LF of 24" CMP.

Chacoan III

Beclabito, Sanostee, White Rock, Coyote Canyon, NM · Navajo AML · Nov 2018

  • AML Reclamation
  • Navajo Nation

Abandoned mine lands reclamation spanning multiple New Mexico project areas under the Navajo AML program.

Cove Mesa V

Cove Mesa, AZ · USEPA Region 9 · June 2018

  • AML Reclamation
  • USEPA Region 9

Access road construction and improvement leading to former uranium mine sites at the top of the mesa. Primary scope included regrading, rebuilding 1,800 LF of road through solid sandstone bedrock using hydraulic hammers, and installation of drainage structures.

Cove Mesa II

Cove Mesa, AZ · USEPA Region 9 · Oct 2019

  • AML Reclamation
  • USEPA Region 9

Improvement of 6 miles of rural road, consolidation and movement of contaminated waste, construction and repair of existing water diversion channel, dust suppression and encapsulation, site restoration and revegetation.

Skyline Mine

Monument Valley, UT (Oljato Chapter) · Shiprock AML · Nov 2018

  • AML Reclamation
  • Shiprock AML

Erosion control maintenance on the repository cap of a previously reclaimed uranium mine waste cell located atop a mesa in Monument Valley. Work included rock retaining wall construction, rock armored drainage channels, and multiple erosion berms across three watershed sections.

Midlands

Shonto, AZ · Navajo AML

  • AML Reclamation
  • Navajo Nation

Five mine sites reclaimed: 99,920 CY of earthwork; 12 acres of revegetation; 480 CY of gabion structures; 73 CY of PUF.

Burnham

Burnham, NM · Navajo AML

  • Coal AML
  • Navajo Nation

Three mine sites reclaimed: 36,000 CY of coal refuse; 4,840 CY of drainage berms; 16 acres of revegetation.

Wupatki

Cameron, AZ · Navajo AML

  • AML Reclamation
  • Navajo Nation

10 mine sites maintained: 35,230 CY of earthwork; 3,092 CY of gabion check dams; 21.5 acres of revegetation.

Chacoan Plains

Chaco Plains, NM · Navajo AML

  • Coal AML
  • Navajo Nation

Six mine closures: 20,900 CY of coal refuse; 27,060 CY of earthwork; 4,400 CY of rip rap; 19,800 SF of revegetation; 23 CY of PUF.

High Desert

Shonto, AZ · Navajo AML

  • AML Reclamation
  • Navajo Nation

Six mine sites maintained: 7,920 CY of earthwork; 105 CY of gabion checkdams; 8 acres of revegetation; 72.5 CY of PUF.

Morrison

Shiprock, NM & Teec Nos Pos, AZ · Navajo AML

  • AML Reclamation
  • Navajo Nation

13 mine sites maintained: 10,540 CY of earthwork; 33 CY of PUF.

Dineh

Bitsi, NM / Thoreau, NM · Navajo AML

  • AML Reclamation
  • Navajo Nation

Four mine sites reclaimed: 69,470 CY of earthwork; 13 acres of revegetation.

Shiprock Road Regrade

Shiprock, NM · Navajo AML

  • Road Work
  • Navajo Nation

Road regrade at Shiprock: 400 CY of road base; 275 CY of subgrade; 250 CY of finish grade; 60 LF of CMP installation.

Morrison II

Teec Nos Pos / Red Mesa, AZ · Navajo AML

  • AML Reclamation
  • Navajo Nation

Revegetation of previously reclaimed AML areas in Teec Nos Pos and Red Mesa, Arizona.

Industry Recognition

Awards & Recognition

Four federal and tribal agency awards recognizing Clawson Excavating's environmental stewardship, community impact, and construction excellence on Navajo Nation projects.

2019

Outstanding Woman-Owned Small Business

US Environmental Protection Agency

2017

Construction Sector Award

Navajo Nation Economic Summit

2016

Western Regional Award

Office of Surface Mining

Chacoan I Project

2008

Environmental Excellence Award

Navajo Nation EPA

Program Participation

AUMRIAbandoned Uranium Mine Reclamation Initiative

New Mexico · Grants Mining District

AMLAbandoned Mine Lands Reclamation

OSM · Navajo Nation AML · BIA

WOSB Recognitions

Clawson Excavating has received four federal and tribal agency recognitions as an outstanding Woman-Owned Small Business, the most recent from the US EPA in 2019.

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