Idaho National Laboratory Cultural Resource Management Plan

Table 1. Property types for which actions are exempt from review.
Property Type
1. Post-1970
buildings, with
exceptions
2. Subsurface
structures
Description
Activities or actions associated with buildings and structures constructed after
1970 are exempt from review, with the following exceptions: A property built
after 1970 may be subject to review if it has been determined the exceptional
historical importance of the property makes it eligible for inclusion on the
NRHP.
These structures have minimal or no visible surface manifestations and include
earthen and concrete-lined trenches, French drains, underground tanks, vaults,
underground pipelines, sewer lines, and other structures that are typically
located below ground and were never intended to be routinely accessed by
people.
3. Storage tanks These structures include surface and subsurface utility tanks used in routine
facility operations. Associated concrete slab foundations, scaffolding, piping,
or spill-management retaining walls are also included.
4. Wells and
boreholes
5. Utility poles and
towers
These structures include characterization wells, monitoring wells, drinking
water wells, industrial water wells, injection wells, and various types of test
wells and boreholes. Wells associated with homesteading and other early
historic uses of the area are not included.
These structures include power lines, microwave towers, seismic data
collection and transmission facilities, and other types of communication
towers.
6. Utility structures These structures provide housing or control of utility equipment or access to
underground utility equipment, such as pump houses, electrical substations,
boiler tanks, or equipment monitoring shacks.
7. Mobile trailers These structures are used for temporary office space and/or storage.
8. Isolated finds These archaeological resources consist of