Categorical Exclusion

U.S. Coast Guard (USCG)

*Denotes classes of actions that have a higher possibility of involving extraordinary circumstances. A REC will be prepared to document consideration of extraordinary circumstances whenever a CATEX that is identified by an asterisk is used.

Exclusion Text

L42 Environmental site characterization studies and environmental monitoring including: Siting, constructing, operating, and dismantling or closing of characterization and monitoring devices. Such activities include but are not limited to the following:
(a) Conducting geological, geophysical, geochemical, and engineering surveys and mapping, including the establishment of survey marks.
(b) Installing and operating field instruments, such as stream-gauging stations or flow-measuring devices, telemetry systems, geochemical monitoring tools, and geophysical exploration tools.
(c) Drilling wells for sampling or monitoring of groundwater, well logging, and installation of water-level recording devices in wells.
(d) Conducting aquifer response testing.
(e) Installing and operating ambient air monitoring equipment.
(f) Sampling and characterizing water, soil, rock, or contaminants.
(g) Sampling and characterizing water effluents, air emissions, or solid waste streams.
(h) Sampling flora or fauna.
(i) Conducting archeological, historic, and cultural resource identification and evaluation studies in compliance with 36 CFR part 800 and 43 CFR part 7.
(j) Gathering data and information and conducting studies that involve no physical change to the environment. Examples include topographic surveys, bird counts, wetland mapping, and other inventories.