Elizabeth Perry of AECOM
Elizabeth Perry of AECOM
Elizabeth Perry of AECOM
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Summary <strong>of</strong> Methane in Groundwater<br />
• 14,209 water wells<br />
sampled in PA, OH,<br />
WV<br />
• Methane detected<br />
in 3,542 wells<br />
(24.9%)<br />
• Methane greater<br />
than PA Action<br />
Level <strong>of</strong> 7 mg/L in<br />
494 wells (3.5%)<br />
Number <strong>of</strong> Samples<br />
350<br />
300<br />
250<br />
200<br />
150<br />
100<br />
50<br />
0<br />
0.036<br />
0.054<br />
0.08<br />
0.12<br />
0.18<br />
0.27<br />
0.41<br />
0.61<br />
0.92<br />
1.4<br />
2.1<br />
3.1<br />
4.7<br />
7<br />
PA Action Level<br />
7 mg/L<br />
10.5<br />
15.8<br />
Detected Methane Concentration (mg/L)<br />
23.7<br />
35.5<br />
53.3<br />
Evaluation <strong>of</strong> Baseline (Pre-Drill) Data
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