To address this, we visualize the facility- or well-specific waste handling method reported most frequently for each year.ħ Approximately 94% of solid waste generated between 2010-2017 was disposed of in landfills as such, only landfills are shown in the solid waste handling visualization. While facilities could change over time with upgrades and new permitting, we assumed that the waste handling method was consistent across a calendar year. facility or well) could be reported with multiple waste handling methods. Road spreading wastewater volumes reported at the municipal or county level are captured in the bar graph visualization, but are not shown in the mapping visualization.Ħ Over time, a single waste handling location (e.g. The bar graph visualizations include all wastewater volumes reported to PADEP, regardless of if spatial information was included.ĥ Road spreading was often reported at the municipality or county level. As such, the waste generation visualization includes data from 1991 to 2017 and the waste handling visualizations show data from 1995 to 2017.Ĥ The spatial visualizations (maps) are limited to waste records that included verifiable spatial information. For more details visit: Ģ PADEP suffered an unrecoverable data loss in 2007, explaining the limited waste generation and waste handling data available for this year.ģ While waste generation data reported to PADEP begins in 1991, spatial information is not available until 1995.

1 The database of oil and gas waste used for these visualizations was compiled by the Pennsylvania Department of Environmental Protection (PADEP).

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