See 60 Fed. Persons in charge of these different facilities, i.e., the trucks, airplanes, and airports, may coordinate their actions to ensure that releases of ethylene glycol into the environment in quantities equal to or exceeding the RQ are reported. However, each person in charge of a facility, including those in charge of the deicing trucks and airplanes, still would bear the burden of ensuring that releases from those facilities are reported properly and accurately, either on their own or as aggregated and reported by the airport. See 40 CFR 302.8. This second exclusion will not exempt a discharge resulting from an onsite release of the identified substance which exceeds the quantity or concentration contemplated in the public record.
Storm water is defined as storm water runoff, snow melt runoff, and surface runoff and drainage.
Although the discharge of ethylene glycol in storm water to a water of the U.S. may meet the 40 CFR Part 117 criteria for federally permitted releases, it is important to note that for discharges covered under either the EPA's Baseline General Permit or Multisector General Permit, these permits contain independent reporting and prevention requirements for releases of hazardous substances equal to or in excess of RQs. For releases of ethylene glycol-contaminated storm water that occur as a result of routine deicing operations, both general permits require the permittee to report to the NRC the first such release that equals or exceeds the RQ each calendar year. First, the discharger must notify the NRC immediately after becoming knowledgeable of the release. In addition, all unauthorized discharges of pollutants to waters of the U.S. are a violation of the CWA regardless of the quantity discharged. Currently, however, there are no federal permits that address releases of ethylene glycol to the air or land surface.