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FEB-16-1996 17:02 TKDA_ i+^i+1 11 IWWN.i 612 292 0063 P.07i11 Subp. 7. Storage facilities. Construction of a facility designed for or capable of storing less than 750 tons of coal or more, with an annual throughput of Less than 12,500 tons of coal, or the expansion of an existing facility by these respective amounts, is exempt. Subp. 8. Mining. The following projects are exempt: A. General mine site evaluation activities that do not result in a permanent alteration of the environment, including mapping, aerial surveying, visual inspection, geologic field reconnaissance, geophysical studies, and surveying, but excluding exploratory borings, are exempt. B. Expansion of metallic mineral plant processing facilities that are capable of increasing production by less than ten percent per year, provided the increase is less than 100,000 tons per year in the case of facilities for processing natural iron ore or taconite, is exempt. C. Scram mining operations are exempt. Subp. 9. Paper or pulp processing facilities. Expansion of an existing paper or pulp processing facility that will increase its production capacity by less than ten percent is exempt. Subp. 10. Industrial, commerci 1 and institutio al facilities. a owrng proJec s are exemp A. Construction of a new or expansion of an existing industrial, commercial, or institutional facility of less than the following thresholds, expressed as gross floor space: (1) third or fourth class city or unincorporated area, 50,000 square feet, (2) second class city, 75,000 square feet, or (3) first class city, 100,000 square feet, if no part of the development is within a shoreland area, delineated flood plain, state or federally designated wild and scenic rivers district, the Minnesota River Project Riverbend area, or the Mississippi headwaters area, is exempt. B. The construction of an industrial, commercial, or institutional facility with less than 4,000 square feet of gross floor space, and with associated Parking facilities designed for 20 vehicles or less, is exempt. C. Construction of a new parking facility for less than 100 vehicles if the facility is not located in a shoreland area, delineated flood plain, state or federally designated wild and scenic rivers district, the Minnesota River Project Riverbend area, or the Mississippi headwaters area is exempt. Subp. 11. Sewage systems. Construction of a new wastewater treatment facility with a capacity of less than 5,000 gallons per day average wet weather flow or the expansion of an existing wastewater treatment facility by less than 5,000 gallons per day average wet weather flow or the expansion of a sewage collection system by less than 5,o00 gallons per day design daily average flow or a sewer line of 1,000 feet or less