The 140-year record (1868 to 2008) of Thames water quality was assembled by drawing together and cross-calibrating at least six different data sets.

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Fracturing proponents have struggled to gain the high ground in the debate on water quality, even as they debunked the myths time and again with facts and data.

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Dissenting Commissioner Troy Paredes notes the potential confusion that could result from having firms speculate on the "physical effects of climate change, such as effects on the severity of weather (for example, floods or hurricanes), sea levels, the arability of farmland, and water availability and quality" and harms to their reputation because of the public perception of data relating to its greenhouse gas emissions.

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Analysing these data revealed that estuaries and coastlines are less able to maintain, for example, water quality, as the number of species found within them declines.

ECONOMIST: Marine biodiversity

Data retrieved from HICO have been validated with data collected from samples collected on the ground and used to develop algorithms to map indicators of water quality.

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"In each case, the scientific analysis concluded that neither Rex Energy's operations nor natural gas development impacted water quality, " said Rex spokesman Derek Smith, who noted that the company provided access to records, shared data, and gave "its complete cooperation and support" to the reviews.

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