327 IAC 15-2-2 NPDES general permit requirements

Sec. 2. (a) The commissioner may regulate the following discharges under an NPDES general permit, consistent with the federal NPDES permit program administered by the U.S. EPA: (1) Stormwater discharges associated with industrial activity, as defined in 40 CFR 122.26(b)(14) consistent with the EPA 2015 NPDES Multi-Sector General Permit for Stormwater Discharges Associated with Industrial Activity. (2) Stormwater discharges associated with construction activity consistent with the U.S. EPA 2017 NPDES General Permit for Discharges from Construction Activities. (3) Small municipal separate storm sewer system discharges consistent with U.S. EPA's general permit requirements for small municipal separate storm sewer systems (MS4s) in 40 CFR 122, Subpart B. (4) Discharges of pesticides to waters of the state consistent with U.S. EPA's NPDES Pesticide General Permit (PGP) for Point Source Discharges to Waters of the United States from the Application of Pesticides. (5) Discharges of treated sewage from on-site residential sewage discharging disposal systems within the Allen County on-site waste management district for which an operating permit has been issued pursuant to IC 13-18-12-9. (6) Discharges of wastewater from ground water petroleum remediation systems into surface waters of the state. (7) Discharges of wastewater from hydrostatic testing of commercial pipelines into surface waters of the state. (8) Once through noncontact cooling water into surface waters of the state. (9) Discharges of wastewater from petroleum products terminals into surface waters of the state. (10) Discharges of process wastewater and pit dewatering water from facilities involved in sand, gravel, dimension stone, or crushed stone operations into surface waters of the state. (11) Discharges from facilities engaged in the mining of coal, coal processing, and reclamation activities. (12) Categories or subcategories of discharges that: (A) involve the same or substantially similar types of operations; (B) discharge the same types of wastes; (C) require the same effluent limitations, or operating conditions; and (D) require the same or similar monitoring requirements. (b) The commissioner may determine that an individual permit must be obtained under section 9 of this rule. (c) Each general permit issued by the commissioner must meet the criteria for general permits in 40 CFR 122.28*. (d) As provided in 40 CFR 122.28(b)(2)(v)*, the commissioner may authorize a person to discharge under a general permit without submitting a notice of intent if the commissioner finds that a notice of intent would be inappropriate. However, this provision does not apply to discharges from: (1) publicly owned treatment works; (2) combined sewer overflows; (3) municipal separate storm sewer systems; (4) primary industrial facilities; and (5) stormwater discharges associated with industrial activity. *These documents are incorporated by reference. Copies may be obtained from the Government Publishing Office, www.gpo.gov, or are available for review at the Indiana Department of Environmental Management, Office of Legal Counsel, Indiana Government Center North, 100 North Senate Avenue, Thirteenth Floor, Indianapolis, Indiana 46204.