PURPOSE: This rule provides that specified coals shall be cleaned by washing prior to their sale or use.

1. (1) Certain Coals to be Washed. After December 1, 1968, it shall be unlawful for any person to import, sell, offer for sale, expose for sale, exchange, deliver or transport for use and consumption in the St. Louis metropolitan area or to use or consume in the area any coal which as mined contains in excess of two percent (2%) sulfur or twelve percent (12%) ash calculated as described in 10 CSR 10-5.110, unless it shall have been cleaned by a process known as washing so that it shall contain no more than twelve percent (12%) ash on a dry basis. The term washing is meant to include purifying, cleaning or removing impurities from coal by mechanical process, regardless of the cleaning medium used.
2. (2) Samples May Be Taken. The director is authorized to take or cause or to have taken samples of any coal at any reasonable time or place for purposes of determining compliance with this regulation.
3. (3) Exception. This regulation shall not apply if a person proposing to use unwashed coal can show that the emission of sulfur dioxide from the plant in which the coal is to be burned will not exceed two and three-tenths (2.3) pounds of sulfur dioxide per million British Thermal Units of heat input to the installation and that emission of particulate matter will be no more than that allowed in 10 CSR 10-5.030.

AUTHORITY: section 643.050, RSMo (1994).* Original rule filed March 14, 1967, effective March 24, 1967. *Original authority 1965, amended 1972, 1992, 1993.