Bureau of Land Management's Decision Record and Environmental

Attachment E
CONDITIONS OF APPROVAL FOR GEOTHERMAL UTILIZATION
been denied. The unit operator shall annually collect and analyze samples from the springs
for basic water chemistry, and monitor representative flow, stage or equivalent from this
spring on the following schedule, unless otherwise modified by the BLM authorized officer:
Once immediately prior to the commencement of drilling, and once immediately
following the completion of drilling, of each new or redrilled geothermal well in
the geothermal unit area;
Each year until the commencement of construction of the utilization facility;
Once each quarter from the commencement of construction of utilization facility
until the cessation of all geothermal fluid production and injection operations
from the geothermal unit area for the utilization facility; and
Once each year from the cessation of all geothermal fluid production and injection
operations from the geothermal unit area for the utilization facility until all
geothermal wells within the geothermal unit area have been abandoned.
Collected data shall be reported to the BLM in written form by the unit operator annually
within 30 days of the end of each calendar year, together with an interpretation of the
monitoring data collected during the preceding calendar year.
Due to the potential of some unknown impacts of the geothermal on perennial cold
springs, seeps or other surface waters, the BLM will require additional monitoring of
such features by the unit operator. If any such features exist within one mile of the
production or injection well field of the Jersey Valley, the unit operator will monitor on a
quarterly basis all such features for a period of three years upon start-up of each well field
and power plant. The unit operator will work with the BLM to establish monitoring
points at each such feature; and establish a written protocol to measure surface flow for
each feature. It is understood that such flows are influenced by meteoric events such as
spring run-off; high intensity storm events, etc.
Measures would also be taken to minimize the effects of construction and unit operations
on the quality of surface and ground waters. To minimize erosion and stream channel
sedimentation, storm water runoff from undisturbed areas around the constructed well
pads, power plant sites and switching station would be directed into ditches surrounding
the disturbed areas and back onto undisturbed ground consistent with best management
practices for storm water. Access roads would also be constructed and maintained
consistent with the best management practices for road construction applicable to the
intended use (temporary or permanent) of the road. To minimize erosion and stream
channel sedimentation, grading or clearing of the surface for construction of the
transmission line would occur only when absolutely necessary for safe access or
installing the conductors and would only occur within the proposed ROW.
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