File Permit Number MO-G490000 Effective Date Sun, 05/01/2022 - 12:00 Expiration Date Fri, 04/30/2027 - 12:00 Description SIC #1411, 1422,1429, 1446 and SIC Major Group Codes 29 and 32 Stormwater and other specified discharges from limestone and other rock quarries, concrete, glass and asphalt industries.