VESTRA Resources, Inc.

Mining

Engineering, Evaluations, Permitting, and Remediation

VESTRA offers a full range of engineering, hydrology, geotechnical, and environmental science services
to the mining industry. This includes working with abandoned underground mining operations, active quarries, and on-stream gravel operations.

Our engineering, environmental sciences, and geotechnical staff bring decades of experience to each
project. Projects have ranged from permitting, design, and SMARA inspections to closure and remediation
activities. We also have conducted numerous special studies, including biological assessments and
comprehensive mercury characterization studies.

We act as client advocates and with years of working with the mining industry have developed and
maintained close professional relationships with regulatory agencies and those individuals responsible
for reviews and permit approval.

services include:

Air Quality Permitting	National Pollutant Discharge Elimination System (NPDES) Permits
Biological Assessments	Remedial Design and Permitting
Bulkhead Seal / Cap Design	SMARA Inspections
CEQA / NEPA Compliance	Use and Amended Use Permits
CERCLA Engineering Studies	Use Attainability Analyses
DFG 1600 and 1603	WDR Permits
Feasibility Studies	Water Rights
Grading Permits	Special Studies: Ore Resources, Hydrology, Archeology, and Biology
Hydrologic Evaluation

EXAMPLE PROJECTS:
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•	CERCLA Removal Action Engineering Design: ZACA Mine Complex
•	Bioreactor Bulkhead Seal and Waste Rock Closure: Stowell Mine Complex
•	Remediation Cell and Bulkhead Seal Design: Bully Hill / Rising Star Mines
•	Use Attainability Analysis: Mining Remedial Recovery Company
•	Permitting and Water Rights Compliance: Mineral Resources LLC