EP 1110-1-19
30 Jun 01
4-8. Operation & Maintenance Activities. This section should describe the general
activities included as post-construction O&M, such as monitoring, site maintenance, and closure
activities. This can include both short-term (RA operating) and long-term (post-RA) O&M.
Information regarding any LTRAs and PRP LRs should also be included in this section. Any
potential problems or concerns with these activities should be identified here. The results of any
optimization efforts during O&M should be noted. If an interim RA report is being completed,
the future groundwater or surface water restoration activities should be described. An example
O&M activities section is provided in Exhibit 4-8.
Exhibit 4-8
Example Operations & Maintenance Activities (Section 7)
The land treatment area was grass-seeded in September 1998. The vegetative cover will be reseeded in Spring
1999 as necessary.
The semiannual groundwater monitoring program began in January 1997. No TCICs have been detected as of the
July 1998, sampling; however, naphthalene has been detected persistently at low levels in groundwater
monitoring well No. 7. The levels of naphthalene are below any action level. As specified in the ROD, the PRPs
will continue semi-annual monitoring of groundwater through 2002 to confirm that groundwater will not be
adversely impacted by the land treatment activities.
4-9.
Summary of Project Costs.
a.
This section should present the total costs incurred for the remedial action. These
costs can be designated as capital, O&M, or periodic costs, as described in Chapter 6. Further,
these costs can be designated as RA or post-RA costs (e.g., RA capital costs, RA operating costs,
post-RA O&M costs).
b.
The reporting of project costs is required for government-financed projects and
should be provided whenever possible for PRP-lead projects. If the project is PRP-lead, a
summary of government oversight costs for the RD and RA should be included.
c.
The year(s) in which costs were incurred should be indicated. If actual costs are
not available, estimated costs should be provided (e.g., when pending claims may impact final
cost).
d.
Total project costs at the time of RA completion, actual or estimated, should be
compared to the costs estimated in the ROD for the selected remedy, adjusted to the same dollar
basis year. Adjustment can be made using an escalation factor, for which the index or rate used
should be noted (e.g., Engineering News Record building cost index). If the total project costs
lie outside a range of 30 to +50 percent of the ROD estimate, explanation for these differences
should be included. An example summary of project costs is provided in Exhibit 4-9.
e.
In addition to reporting total costs, a cost breakdown, identifying cost elements,
should be provided in an appendix to the RA report. More detailed information on documenting
project costs is provide in Chapter 6 of this guide.
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