Category Archive: Water use and contamination

Predicting Water Resource Impacts of Unconventional Gas Using Simple Analytical Equations

In this study the authors show “that the recovery of pressure after production ceases from gas-bearing shale formations may take several hundred years, and (…) present critical hydraulic conductivity values for intervening aquitards, below which the impact on shallow aquifers will be negligible.” Abstract The rapid expansion in unconventional gas development over the past two …

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Permanent link to this article: http://frack-free.rocks/predicting-water-resource-impacts-of-unconventional-gas-using-simple-analytical-equations/

Impacts from the Hydraulic Fracturing Water Cycle on Drinking Water Resources in the United States (Final Report)

Here, the EPA is announcing the availability of the final report, Hydraulic Fracturing for Oil and Gas: Impacts from the Hydraulic Fracturing Water Cycle on Drinking Water Resources in the United States. Abstract This final report provides a review and synthesis of available scientific information concerning the relationship between hydraulic fracturing activities and drinking water …

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Permanent link to this article: http://frack-free.rocks/impacts-from-the-hydraulic-fracturing-water-cycle-on-drinking-water-resources-in-the-united-states-final-report/

Association of groundwater constituents with topography and distance to unconventional gas wells

Huge banner showing three glasses w/ muddy water from different fracked counties in Pennsylvania.

The outcome of this large empirical evaluation of groundwater samples up and downwards from fracked UGD wells in Pennsylvania hints to possible negative impacts of UGD on water quality, thus to pathogenic effects of this production technique. Highlights Groundwater (GW) quality was associated with distance to UGD gas wells and topography. Ca, Cl, & SO4 …

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Permanent link to this article: http://frack-free.rocks/association-of-groundwater-constituents-with-topography-and-distance-to-unconventional-gas-wells/

Potential water resource impacts of hydraulic fracturing from unconventional oil production in the Bakken shale

This study presents a critical review of potential water resource impacts due to deterministic (freshwater withdrawals and produced water management) and probabilistic events (spills due to leaking pipelines and truck accidents) related to UOP from the Bakken shale in ND. Key points: Summary of Bakken shale members and Williston basin. Water footprint and water contamination …

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Permanent link to this article: http://frack-free.rocks/potential-water-resource-impacts-of-hydraulic-fracturing-from-unconventional-oil-production-in-the-bakken-shale/

Developing monitoring plans to detect spills related to natural gas production

A water monitoring station at a small creek in a foggy valley

This study sheds a light on the difficulty to detect toxic substances stemming from drilling and exploiting oil and natural gas wells. The authors suggest to place sensors, when practical, at the mouths of small watersheds where drilling activities or spill risks are present, as contaminant travel distance strongly affects concentrations in surface water systems. …

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Permanent link to this article: http://frack-free.rocks/developing-monitoring-plans-to-detect-spills-related-to-natural-gas-production/

Quantity of flowback and produced waters from unconventional oil and gas exploration

Key findings: Estimated flowback and produced water volume from unconventional oil and gas wells is 1.7 to 14.3 million liters per well. Only a small fraction (4-8%) of the flowback and produced waters is composed of returned injected hydraulic fracturing fluids. The majority (92-96%) of flowback and produced waters is composed of naturally occurring formation …

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Permanent link to this article: http://frack-free.rocks/quantity-of-flowback-and-produced-waters-from-unconventional-oil-and-gas-exploration/

Managing the Increasing Water Footprint of Hydraulic Fracturing

Scheme: Water use in hydraulic fracturing.

The water footprint of oil production, including water used for hydraulic fracturing (HF) and flowback-produced (FP) water, is increasingly important in terms of HF water sourcing and FP water management. This study evaluates trends in HF water use relative to supplies and FP water relative to disposal using well by well analysis in the Bakken …

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Permanent link to this article: http://frack-free.rocks/managing-the-increasing-water-footprint-of-hydraulic-fracturing/

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