35 Ill. Adm. Code 704.212
Cost Estimate for Plugging and Abandonment
Section 704
Section 704.212 Cost
Estimate for Plugging and Abandonment
a) The owner or operator must prepare a written estimate, in
current dollars, of the cost of plugging the injection well in accordance with
the plugging and abandonment plan, as specified in Sections 704.150 and
704.181(f). The cost estimate must equal the cost of plugging and abandonment
at the point in the facility's operating life when the extent and manner of its
operation would making plugging and abandonment the most expensive, as
indicated by its plan.
b) The owner or operator must adjust the cost estimate for
inflation within 30 days after each anniversary of the date on which the first
cost estimate was prepared. The adjustment must be made as specified in
subsections (b)(1) and (b)(2), using an inflation factor derived from the
annual update to "Oil and Gas Lease Equipment and Operating Costs 1987 to
[Date]" published by the U.S. Department of Treasury. The inflation
factor is the result of dividing the latest published annual Index by the Index
for the previous years.
1) The first adjustment is made by multiplying the cost estimate
by the inflation factor. The result is the adjusted cost estimate.
2) Subsequent adjustments are made by multiplying the latest adjusted
cost estimate by the latest inflation factor.
BOARD NOTE:
Corresponding 40 CFR 144.62(b) cites "Oil and Gas Field Equipment Cost
Index" without attribution of its source. The Board has located a
publication entitled "Oil and Gas Lease Equipment and Operating Costs 1987
to [Date]". It is assembled by the U.S. Department of Energy, Energy
Information Administration. It is available only on the Internet at
www.eia.doe.gov. The Board replaced the federally cited reference with this
document. The full link for the document (in March 2006) is as follows: http://www.eia.doe.gov/pub/oil_gas
/natural_gas/data_publications/cost_indices_equipment_production/current
/coststudy.html.
c) The owner or operator must review the cost estimate whenever a
change in the plan increases the cost of plugging and abandonment. The revised
cost estimate must be adjusted for inflation as specified in subsection (b).
d) The owner or operator must keep the following at the facility
during the operating life of the facility: the latest cost estimate prepared in
accordance with subsections (a) and (c) and, when this estimate has been
adjusted in accordance with subsection (b), the latest adjusted cost estimate.
BOARD NOTE:
Derived from 40 CFR 144.62 (2017).