Illinois Administrative Code
Title 32 - ENERGY
Part 351 - RADIATION SAFETY REQUIREMENTS FOR WIRELINE SERVICE OPERATIONS AND SUBSURFACE TRACER STUDIES
Subpart E - SECURITY, RECORDS, NOTIFICATIONS
Appendix B - Example of Plaque for Identifying Wells Containing Sealed Sources Containing Radioactive Material Abandoned Downhole
Universal Citation: 32 IL Admin Code ยง B
Current through Register Vol. 48, No. 12, March 22, 2024
The size of the plaque should be convenient for use on active or inactive wells, e.g., a 17-centimeter (7-inch) square and 3 mm (1/8 inch) thick. Letter size of the word "CAUTION" should be approximately twice the letter size of the rest of the information, e.g., 12-millimeter (1/2-inch) and 6-millimeter (1/4-inch) letter size, respectively. Quantities and distances may be expressed either in SI units or in special and English units or in dual units.
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