ENVIRONMENTAL IMPACTS OF GAS DRILLING

Water Well Contamination 

We offer the following documents pertaining to water well contamination resulting from natural gas development. All instances of contamination that we have found thus far have not been caused by hydro-fracturing chemicals, but have been instead caused by improper well casings that have resulted in methane migration into aquifers or the turbidity that results from methane migration or ground vibrations.

PENNSYLVANIA
Penn. DEP Notice of Violations to Cabot Oil and Gas Re: Dimock Gas Migration. Improper casing caused methane migration.

DEP Tests Dimock Water Wells and finds no contamination from hydro-fracturing chemicals.

COLORADO
The Garfield County Study of Methane Contamination
(all links)

• Study's Conclusion: Review of Phase II Hydrogeolgic Study, Prepared for Garfield County, by Geoffrey Thyne, Dec. 20, 2008 "There is a temporal trend of increasing methane in groundwater samples over the last seven years that is coincident with the increased number of gas wells installed in the Mamm Creek Field"
• Phase I Hydrogeologic Characterization of the Mamm Creek Field Area in Garfield County (PDF), Prepared for Board of County Commissioners, Garfield County, Colo., March 23, 2006
• Phase II Hydrogeologic Characterization of the Mamm Creek Field Area, Garfield County, Colorado(PDF), S.S. Papadopulos & Associates, Inc., Boulder, Colo., September 2008
• Appendix A: Garfield County Hydrogeologic Characterization Study -- Phase II Field, Sampling Plan for Task 1 (PDF)
• Appendix C: Task 1 and 2 Groundwater Sample Laboratory Analytical Reports (PDF)
• Appendix D: Task 1 and 2 Gas Composition and Methane Isotope Laboratory Analytical Reports
  

Update on the Ongoing Investigation of the Presence of Methane Gas in Water Wells in Laramie/Fox Hill Aquifer (PDF), From Colorado Oil & Gas Commission's David S. Neslin to the Weld County Commission, April 13, 2009

NEW YORK
NYS DEC Slideshow: Marcellus Shale Exploration

• SRBC Slideshow: Regulating Water Concerns
• Environmental Issues FAQ
• Hinchey, Colleagues Introduce Legislation to Protect Drinking Water from Natural Gas Fracking      Press Release

Contamination of Private Water Supplies by Gas Well Drilling in New York State, by Stephen Penningroth, PhD Executive Director, Community Science Institute, 2009.

OHIO
Ohio Department of Natural Resources - Report on the Investigation of the Natural Gas Invasion of Aquifers in Bainbridge Township of Geauga County, Ohio   153-page report blamed a nearby gas well's faulty concrete casing and hydraulic fracturing on methane contamination.

Scientific Paper:
"Contamination of Aquifers by Overpressuring"  Annulus of Oil and Gas Wells Samuel S. Harrison, May/June 1985

WYOMING
BP to clean up contaminated water well- Public involvement requires written request   Pinedale Online! - August 20, 2007

Hydrocarbons found in 85 Jonah/Pinedale Anticline water wells. 3 of the 85 have Benzene Hydrocarbon levels above allowable WY DEQ levels by Dawn Ballou, Editor, Pinedale Online! - April 26, 2007

Air Quality Contamination

Barnett Shale Area
Emissions from natural Gas Production in the Barnett Shale Area and Opportunities for Cost-Effective Improvements by Al Armendariz, Ph.D. Dept. of Environmental & Civil Engineering, Southern Methodist University, Jan. 26, 2009.

Texas State Agency Backs SMU Ozone Study

Wyoming Area

Air Pollution Advisory Issued: The Air Quality Division of Wyoming's Department of Environmental Quality is issuing an air pollution advisory beginning Wed., Feb. 27, for the Upper Green River Basin in Sublette County.

Sublette County Reaches EPA Ozone "Non-Attainment" Status

Wyoming Dept. of Environmental Quality Interim Policy on Air Quality Compliance & Permitting Procedures. (Details situation, and role of gas companies, and permitting procedure)

Ultra Petroleum Cited for Air Quality Violations (Wyoming)