be difficult to use and minimizing salt loss, saving the agency money on materials. Salt can be covered using a permanent or temporary structure, as well as with a tarp. When designing a salt storage structure, it is important to consider the pervious nature of the walls. In general, the structure should be placed on an impervious pad, with walls impervious to a height of at least one foot above where the pile meets the wall. The Salt Institute’s Salt Storage Handbook provides a reference for structure design based on the size of required piles (Salt Institute, 2015). As well as providing enough room for salt piles, ideally, a storage structure would allow enough room for the loading, mixing and other handling activities to be performed under cover. Figure 1. Storage structure, collection swale, and retention pond. RETENTION POND SPECIFICATIONS As described in previous sections, site grading provides the base for storm water management across the site. Grading should prevent any run-on from contacting stockpiles whether covered by a structure or tarp. Storm water that does not come in contact with salt should be directed away from the site and onto adjacent property or the storm system. Water that does collect salt should be directed to proper containment locations such as a retention or evaporation pond. This is the reason for the importance of attempts to contain as much of the salt storage and handling areas as possible. Contaminated storm water and wash water should be directed to the pond by means of a collection system. The collection system can consist of ditches, berms, pipes or curbs to isolate the regions contaminated during salt handling procedures. The system should be sized to accommodate a 100-year storm event. Collection ponds should be constructed with an impermeable synthetic liner to prevent discharge into the ground water. Ideally, collection ponds should be sized to allow enough storage for the pond to act as an evaporation pond. Clean out of the pond should be performed on a regular basis and the spoils disposed of in accordance with Utah Department of Environmental Quality (DEQ) standards. CONCLUSION The conscious development and application of the best management practices contained in this report will improve road clearing efforts while increasing economic, and environmental efficiency. Several sources were used in the compilation of this report and should be considered where further information is desired. The Salt Institute, can be referenced for many items including the design of structures, size of piles and other technical information. The “Safe and Sustainable Snowfighting Award,” available through the Salt Institute, provides specific checklists for facility managers to assess their operations (Salt Institute, 2017). References Goodridge, W., Bellon, W., Gelles, L., Maguire, M. (2018). “UDOT Maintenance Site Detention and Retention Pond Water Report.” Michigan Department of Environmental Quality. (2007). “Salt and Brine Storage Guidance – For Road Agency Maintenance and Other Facilities.” http://www.michigan.gov/documents/deq/deqess-p2tasbulksaltbrineguidance_267024_7.pdf. (Jan. 14, 2018). Salt Institute. (2017). “Safe and Sustainable Snowfighting Award Application.” (Jan. 15, 2018). Salt Institute. (2016). “Safe and Sustainable Snowfighting – Snowfighter’s Handbook.” (Jan. 15, 2018). Salt Institute. (2015). “Safe and Sustainable Salt Storage – Salt Storage Handbook” (Jan. 15, 2018) State of Ohio, Ohio Water Resources Council, State Coordinating Committee on Ground Water. (2013). “Recommendations for Salt Storage – Guidance for Protecting Ohio’s Water Resources.” http://epa.ohio.gov/portals/35/owrc/ SaltStorageGuidance.pdf. (Jan. 15, 2018). “UDOT Snow Removal” UDOT.UTAH.GOV. Utah Department of Transportation. (30 Jan. 2017). 55
RkJQdWJsaXNoZXIy MTg3NDExNQ==