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This dataset represents multiple types of solid waste facilities and other landfills around the state. The landfills are categorized into Municipal Solid Waste, Municipal Solid Waste Transfer Facility, Scrap Tire Recovery Facility, Scrap Tire Monofill, Scrap Tire Recovery Facility, Scrap Tire Collection Facility, Residual Solid Waste Landfill, Construction and Demolition Debris Landfill, and Closing Municipal Solid Waste Landfill. The type of landfill and its spatial location in relation to the ODOT project location is important in determining what if any Environmental Site Assessment is warranted for that site.Explanation of POLYGON_TYPES listed in file (*see note):Approximate waste area – Type 1: The area was traced from a map used in a published Ohio EPA file document, such as an engineering map or infographic from a permit, explosive gas plan, Directors Final Findings and Orders, Site Assessment, News release, etc. This area should reasonably accurately represent where the waste is located. If the landfill is capped it should be a fairly accurate representation of the capped waste area. It is important to note that not all “official documents” have high precision maps, and there is often no indication of the map source in such documents. This is the most accurate polygon type. (Note: Not all official EPA publications contain engineering-grade maps, and the source of maps in older publications is not always known)Parcel – Type 2: A parcel where all or most of landfill is located was traced from a local tax map. Facility Boundary – Type 3: A known, verified area of some sort that is understood to, at a minimum, contain the waste area but may contain additional areas without waste. Facility boundaries are taken from a map or orthophoto. A facility boundary may include inactive or future disposal areas (for C&DD landfills for example). Facility boundaries are occasionally traced from a fence line or border road that is visible in an orthophoto. Some older file maps or drawings identify the polygon as a “facility boundary” in the legend, and in those cases the “Facility Boundary” designation is used. Some engineering drawings have a line labeled “facility boundary” that includes areas that have sediment ponds, roads and drainage, and so forth (things that are in the permit) in addition to the waste units. Sometimes a facility boundary follows a parcel boundary.Area of Interest – Type 4: An area where the waste is likely to be, but nobody is certain about it and it has not been verified. In a situation where some or most of the waste has been removed, it’s represents the area where the waste used to be. The “Area of interest” designation is also frequently used by the contracting and remediation group to designate a “project area” when estimating budgets for remediation, capping, etc. and many of the Type 4 polygons originated from maps for that program. Area of interest is the least accurate of the designations.Building – Type 5: At this time a building polygon denotes a municipal waste transfer facility.Inspector Estimate – Type 6: A staff member needed a map for a project or internal analysis and so an Inspector was asked to (often manually) draw a line on map where, “in his/her professional opinion,” the waste was likely to be. These polygons were created to make maps for an individual’s project, PowerPoint presentation, or for other Divisions within Ohio EPA to use for internal analyses. *Note on conflicting polygon boundaries: In some cases a single facility may have more than one polygon of the same type and those two polygons may not be congruent. The reason for this is because the polygons originated from different sources and the sources did not agree. For example, the maps may have been from different time periods but the map source was not dated; or the polygons represented different things that were not clearly articulated in the source documents (for example a ‘project area’ vs a facility area). In cases like this the additional polygons have been retained until new information is available that will identify the most accurate depiction of the landfill waste area. Check the comment field for any additional information that may be available about these polygons.Explanation of LATITUDE_DD_BEGIN and LONGITUDE_DD_BEGIN: Coordinate geometry calculated based on centroid of polygon. Source: Nick D’Amato, Ohio Environmental Protection Agency |