{"data":{"id":"us-va/9vac5-40-2560","jurisdiction":"us-va","citation":"9VAC5-40-2560","heading":"Standard for particulate matter","body":"A. No owner or other person shall cause, or permit to be discharged into the atmosphere from any lightweight aggregate process operation any particulate emissions in excess of the limits in Table 4-19.\n\nTABLE 4-19\n\nProcess Weight Rate\n\nTons/Hr\n\nMaximum Allowable Emission Rate\n\nLb/Hr\n\n.05 or less\n\n.176\n\n.10\n\n.351\n\n.20\n\n.702\n\n.30\n\n1.053\n\n.40\n\n1.404\n\n.50\n\n1.76\n\n.75\n\n2.64\n\n1.0\n\n3.51\n\n1.25\n\n5.27\n\n1.75\n\n6.15\n\n2.0\n\n7.02\n\n4.0\n\n14.0\n\n6.0\n\n21.1\n\n8.0\n\n28.1\n\n10.0\n\n35.1\n\n15.0\n\n52.7\n\n20.0\n\n70.2\n\n25.0\n\n87.8\n\n30.0\n\n105.0\n\n35.0\n\n123.0\n\n40.0\n\n140.0\n\n45.0\n\n158.0\n\n50.0\n\n176.0\n\nB. Except as provided in subsection C of this section, interpretation of the emission standard in subsection A of this section shall be in accordance with 9VAC5-40-22.\n\nC. For a process weight rate between any two consecutive rates in Table 4-19, or for rates over 50 tons per hour, the maximum allowable emission rate may be calculated by the following equation:\n\nE = 3.51 P\n\nwhere:\n\nE = emission rate in lb/hr.\n\nP = process weight rate in tons/hr.","path":["Title 9. Environment","Agency 5. State Air Pollution Control Board","Chapter 40. Existing Stationary Sources","Part II. Emission Standards","Article 19. Emission Standards for Lightweight Aggregate Process Operations (Rule 4-19)"],"source_url":"https://law.lis.virginia.gov/admincode/title9/agency5/chapter40/section2560/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:48:08Z","sha256":"657acfdcabe438873beac809161f68400319d10373e10647b0550503fd2655d3","source_id":"us-va-vac","stale":false,"prev":"us-va/9vac5-40-2550","next":"us-va/9vac5-40-2570"},"notice":"GroundRules: Original legal text. Not legal advice."}