Deicing Planning Guidelines and Practices for Stormwater Management Systems, second edition (2020)

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1 ACRP Report 14: Deicing Planning Guidelines and Practices for Stormwater Management Systems established an industry standard reference for the management of airport deicing runoff. That document provides a central resource for information on why deicing is needed at airports, the regulatory and other constraints on how it can be conducted to maintain safe wintertime operations, and the environmental concerns that lead to requirements for managing stormwater runoff containing deicing materials. A critical aspect of the guide- book is that it describes the available toolbox of technologies and practices for the practical, cost-effective control of runoff from aircraft and airfield deicing and anti-icing operations. The guidebook broke new ground for the industry. However, ACRP Report 14 was published in 2009 and reflects the state of the industry in the mid-2000s. In the decade that followed, the industry has gained experience in managing deicing programs, and seen significant technological and operational advancements that reduce the amounts of deicers needed to maintain safe winter operations and improve the effectiveness and practicality of managing runoff containing deicers. In addition, scientific and engineering investigations conducted since the publication of ACRP Report 14 have improved understanding of the environmental impacts associated with deicing activities and the effectiveness of existing deicing runoff management practices. In response to these needs, ACRP Project 02-71 undertook to update and expand ACRP Report 14 to provide airport practitioners with the latest guidance and management prac- tices related to deicing activities. The goal of the Project 02-71 research team was to produce an up-to-date planning resource that provides state-of-the-science information regard- ing the selection and implementation of a wide array of methods for the practical, cost- effective control of runoff from aircraft and airfield deicing and anti-icing operations. The target audience for this guidance consists of airport staff; aircraft operators; consultants and designers; and local, state, and federal regulators with an interest in managing deicing runoff. The research resulted in the following three products. • ACRP Research Report 14, 2nd edition. This new edition incorporates the following key updates: – An overview and evaluation of the current state of practice and emerging issues, including: � Environmentally relevant characteristics and potential impacts of aircraft and air- field deicers. � Impacts on existing airports of the EPA’s 2012 “Effluent Limitations Guidelines and New Source Performance Standards for the Airport Deicing Category.” S U M M A R Y Deicing Planning Guidelines and Practices for Stormwater Management Systems

2 Deicing Planning Guidelines and Practices for Stormwater Management Systems � North American and global industry trends in aircraft and airfield deicer application, collection, and management practices. � Current state of knowledge and effectiveness of application, collection, and treat- ment techniques and technologies. – Revisions to the technology fact sheets that accompanied ACRP Report 14 to reflect the current state of the practice and knowledge. The revision process included updates to existing fact sheets, creation of new fact sheets, and retirement of fact sheets that are no longer relevant. – Integration with the body of knowledge represented by other ACRP reports that address different aspects of deicing. • A Deicing Management Decision Support Tool that airport practitioners can use to help evaluate different practices related to deicer application and the collection and treatment of stormwater containing deicers. • An Advanced Deicing Runoff Management training course that builds upon the existing Course 4: Managing Deicing Runoff in the ACRP Webresource3 Airport Stormwater Resource Library & Training Materials website.