Sixth-Generation Ohio Multi-Sector General Permit for Stormwater Issued Final

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Ohio EPA’s new Multi-Sector General Permit (MSGP) for Industrial Stormwater Discharges (Ohio EPA (OEPA) General Permit Number OHR000006) was issued final on May 8, 2017. The effective date of the permit is June 1, 2017. OEPA’s fifth-generation MSGP (OHR000005) expired on December 31, 2016, and its replacement has incorporated changes that clarify allowances and exceptions and ensure that Ohio’s MSGP is consistent with its U.S. EPA counterpart. This post describes some important dates for associated submittals and summarizes new provisions of the permit.

Companies with facilities currently covered by OHR000005 should expect to receive a letter from OEPA in the next few weeks. No action is required of current permit holders until this letter is received.

Important dates to keep in mind:

  • Effective permit date: June 1, 2017
  • Permit expiration date: May 31, 2022
  • Notice of Intent (NOI) submittal deadline date for existing permit holders: within 90 days of the OEPA’s written instructions (letter) to re-notify. Per Jason Fyffe, Supervisor, OEPA Central Office Stormwater Permitting, renewal letters will be mailed late the week of May 22, at the earliest.
  • Stormwater Pollution Prevention Plan (SWPPP) update timeframe for existing permit holders: within 180 days of the effective date of the permit (i.e., November 28, 2017)
  • Facilities not covered under a prior NPDES permit (new dischargers) must prepare a SWPPP prior to submitting an NOI. NOIs for new dischargers are to be submitted at least 180 days prior to discharge.

It is important to note that as of February 1, 2017, OEPA has instituted an all-electronic NOI filing policy, and facilities must use eBusiness to prepare and submit the form. If you prefer, the NPDES application utility (Surface Water Tracking, Reporting, and Electronic Application Management System or STREAMS) allows consultants to prepare the NOIs on behalf of their clients and delegate the forms to the appropriate individual for electronic signature and final submittal. CEC can assist you with this matter. Online payment is also available.

Notable changes to the current MSGP compared to OHR000005 include the following:

  • Clarifying language was added that defines conditions when pavement wash waters and routine external building washdown are an allowable non-stormwater discharge authorized by the permit. MSGP Part 1.1.3.
  • A list of the stormwater discharges subject to effluent limitation guidelines under 40 CFR, Subchapter N that are not eligible for coverage under the general permit and would require authorization to discharge under an individual NPDES permit is now included in MSGP Part 1.1.4.4.
  • A reduction in required frequency for routine facility inspections and quarterly visual assessments is now allowed for facilities recognized under the Gold and Platinum levels by OEPA’s Encouraging Environmental Excellence (E3) Program. MSGP Parts 4.1.3 and 4.2.3.
  • The requirement for a comprehensive annual site inspection has been eliminated in order to match the U.S. MSGP and to “eliminate redundancies and reduce burden” on facilities. The requirement for routine facility inspection remains, and required procedures are listed in MSGP Part 4.1.1 (no change from OHR000005).
  • Language has been added to clarify that documents incorporated into the SWPPP by reference may be maintained on site electronically (i.e., satisfies “available on site” requirement). MSGP Part 5.1.5.1.
  • Permittees are now required to make their SWPPP available to the public when requested, excluding any confidential or restricted business information. MSGP Part 5.3.
  • Language has been added to clarify that, for monitoring purposes, an outfall can include a discrete conveyance (i.e., pipe, ditch, channel, tunnel, or conduit) or a location where sheet flow leaves the facility property. MSGP Part 6.1.1.
  • Language has been added to clarify that permittees obtaining coverage in years 4 and 5 of the general permit must complete benchmark monitoring requirements to the extent of remaining monitoring periods available before the general permit expires. (Permittees obtaining coverage before this time are to complete the benchmark monitoring requirements within the first three years of permit coverage. This has not changed from OHR000005.) MSGP Part 6.2.1.2.
  • Provisions have been added for permittees who are exceeding a benchmark due to neighboring facility run-on to account for this situation. MSGP Part 6.2.1.2.
  • Provisions have been added for a facility to default to a different benchmark value if a parameter’s water quality standard is less restrictive than the permit benchmark value. MSGP Part 6.2.1.2.
  • Provisions have been added for permittees to consider pollutant concentrations (contributions) from the facility structures (roofs, walls, fencing, etc.) when determining whether it is available, practical, and achievable to implement additional control measures when a benchmark has been exceeded. MSGP Part 6.2.1.2.
  • The annual report requirements have been revised to be consistent with the federal MSGP. (The frequency and recordkeeping requirements have remained the same.) MSGP Part 7.2 and Appendix I.
  • Language has been added to clarify that the discharge of leachate (defined in OAC 3745-27-01(L)(1)) is not authorized under the MSGP. MSGP Part 8.C.2.1.
  • Composting fertilizer mixing facilities (SIC 2875) have been removed from Subsector C1 and located in a newly created Subsector C6, which provides more appropriate benchmark monitoring parameters for this industry. Table 8.C-1 and Appendix D to Sector C have been revised to specify that SIC 2875 (non-composting fertilizer mixing facilities) will be subject to Subsector C1 and SIC 2875 (composting fertilizer mixing facilities) will be subject to Subsector C6.
  • Language was added to Sector N (Scrap Recycling Facilities) to clarify that references to secondary containment under this part are referencing stationary outdoor equipment and not mobile equipment. MSGP Part 8.N.3.1.7.
  • Marinas have been added to Sector Q (Water Transportation) of the MSGP. The current OEPA Marina stormwater general permit (OHRM00002) expires on January 21, 2018, and will not be renewed. Marinas with coverage under OHRM00002 will remain covered under that general permit until it expires, and at that time, will be instructed to renew their coverage under OHR000006. NOTE: the current Marina Stormwater general permit authorizes the discharge of boat wash water if no detergents or other chemical cleaning agents are used. OHR000006 does not authorize boat wash water. Such discharges would require proper collection and disposal (i.e., sanitary sewer) or be permitted by a separate NPDES permit. MSGP Part 8, Subpart Q – Sector Q
  • Appendix B, “Standard Permit Conditions,” has been updated to reflect the “Standard Permit Conditions” language found within OEPA general permits.

For additional information regarding OHR000006, including fact sheets and a copy of the permit, visit OEPA’s Industrial Stormwater General Permit website.

If you have any questions on how the requirements of OHR000006 may affect your facility, or if you would like assistance with NOI submittal and/or updating the SWPPP for your facility, contact Amy Ritts (aritts@cecinc.com) or Andy McCorkle (amccorkle@cecinc.com).

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