By Samantha Malone, MPH, CPH – Communications Specialist, Center for Healthy Environments & Communities (CHEC) of the University of Pittsburgh Graduate School of Public Health (GSPH), & DrPH Student, GSPH

During the final days of the APHA Conference and my trip to Colorado, I spent a lot of time working on the University of Pittsburgh Graduate School of Public Health’s (GSPH) upcoming conference on the potential public health effects of shale gas extraction (registration has closed).

I also spent time learning more about how people in CO and surrounding states view shale gas drilling, especially the perspectives of public health professionals attending the conference.

Interestingly, my conversations and observations revealed something entirely different than I expected. A “Blue Bear” in the window, you could say (photo left). The conference attendees I spoke with did not seem nearly as concerned as many people I converse with here within the Marcellus Shale play. Perhaps this is because shale gas drilling (in the form we are seeing in the Marcellus right now) started earlier in the western and southwestern states, and the shale plays are much smaller in other parts of the country. (Don’t worry. I openly acknowledge that I have a bit of a sampling bias in assessing how often Marcellus concerns crop up during conversation around me. Try sitting at my family’s Thanksgiving dinner table with me.)

Being as unbiased as I could, it seemed that local professionals in Colorado view shale gas drilling as a “necessary evil.” They figure, if it is going to happen, they should know the most intimate details. As a result, some of the researchers and groups in those portions of the U.S. are actively involving industry in their research and outreach efforts. Perhaps this is an approach Marcellus-based organizations should take. I wonder how often it is already occurring in our region, and I would love your feedback about this inquiry.

As a I said, some researchers are working with gas drilling companies to address their academic research needs. Below is a quick summary of a presentation by Roxana Witter, MD, MSPH that utilized industry and community input. I won’t go into the dirty details because Dr. Witter, Jim Rada, and John Adgate, PhD will be presenting the entire results of their work at GSPH’s conference this Friday. You can read the abstract of Dr. Witter’s APHA presentation here: Use of Health Impact Assessment (HIA) to Help Inform Decision Making Regarding Natural Gas Drilling Permits in Colorado.

Battlement Mesa Health Impact Assessment

In a study by Roxana Witter, MD, MSPH; Jim Rada, BS, REHS; Kaylan Stinson, MSPH; Kenneth Scott, MPH; John Adgate, PhD; and Lee Newman, MD, MA (don’t you just love all of those credentials?) – a health impact assessment was conducted in Battlement Mesa, Garfield County, CO.  During the APHA conference, Dr. Witter reported that the study area previously experienced what is called a “boom and bust” of natural gas drilling. In case you are interested, the tendency for this industry to follow a “boom and bust” cycle is discussed in the following article: “Energy Boomtowns & Natural Gas” PDF. Recent interest by a drilling company triggered the request of an HIA to help guide land use decision making.

In 2005, Jim Rada began conducting ambient (outside) air monitoring for particulates and other contaminants. At this time, Rada educated citizens and also encouraged dialogues between the industry and citizens. The formal health assessment began in 2009. In addition to their own epidemiological (health-by-numbers) investigations, the researchers held stakeholder meetings with citizens, state agencies, and industry to gather their input and perspectives. The researchers were able to release a draft of the HIA in September 2010, where it was open for public comment until recently (this week, I believe). Look for the final HIA soon. Essentially, the draft HIA shows that quality of health was not significantly affected, but the community felt some impacts:

• Increase in violent crimes
• Chlamydia cases doubled (a sexually transmitted bacterial infection)
• School enrollment increased

The researchers also conducted a Health Risk Assessment to identify potential problems down the road. They looked a eight (8) major areas of concern based on the stakeholder meetings: air quality, water quality, traffic, noise, economic conditions, social conditions, health infrastructure, and accidents/malfunction.

Of those, the researchers identified four key areas of concern based on available data (shown in descending order below) that pose the highest risk of producing negative health impacts:

1. Air quality
2. Traffic
3. Water quality
4. Community wellness (defined by looking at “crime rates, mental health, substance abuse and suicide, occurrence of sexually transmitted infection,  and enrollment in K-12 education”)

Like I said, Dr. Witter and her colleagues will go into more detail about this on Friday. I would hate to be a complete spoiler. Just in case you missed the cutoff for registration for that conference, no fear, the video of the conference will be posted on this blog and on the conference website.

And finally, I discussed some of my impressions about CO and a lot about FracTracker’s DataTool (now archived) during an interview on Penn State’s Sustainability Now radio show. It aired live on Friday, November 11th from 4-5 pm (while I was visiting Breckenridge) on The Lion 90.7 fm.

Third blog post out of three. Read the first and second.

By Samantha Malone, MPH, CPH – Communications Specialist, Center for Healthy Environments and Communities (CHEC), University of Pittsburgh Graduate School of Public Health (GSPH); and Doctorate of Public Health (DrPH) Student, GSPH

Shale gas drilling involves injecting large amounts of high-pressured water and various chemicals into the shale layer to release the natural gas trapped there.

Although there are some obvious economic benefits to producing energy in our own country, how will shale gas drilling and forced pooling affect farmers who are applying for or trying to keep their organic farm certifications? Do the communities burdened with gas drilling truly ‘reap’ the rewards?

Organic Certification for Farms

Organic farming means that farmers must avoid using most synthetic chemicals when producing their crops, such as synthetic fertilizer, pesticides, antibiotics, sewage, organisms that have been genetically modified, or exposing food to high doses of radiation. No synthetic chemicals could have been used on the farmland for a few years. Organic farmers are subject to periodic inspections, as well. (For more information about the benefits and costs associated with eating organic food, check out this website.)

Forced Pooling

Currently, PA is one of the only remaining states in the U.S. where active natural gas drilling is occurring that has not enacted any kind of severance tax on the industry. Keep in mind, however, that while a severance tax is being considered in Harrisburg, the natural gas industry is lobbying to have forced pooling tied to any severance tax legislation. (The likelihood of either proposal being passed before a new term begins is highly unlikely at this point, however.)

Forced pooling would require people to enter into lease agreements in an area where the majority of other lease-owners have leased to a natural gas drilling company. This would be advantageous to the industry because it makes leasing more orderly and allows them to more easily access areas where the mineral rights have been fragmented. While this could reduce the environmental footprint of drilling in some ways, it could be incredibly problematic for organic farmers whether they own their mineral rights or not. At least without forced pooling, organic farmers have more of a choice about whether they will lease their mineral rights.

The Predicament

The problem, therein, is that any violation on the part of industry that pollutes the land, air, or soil on or near a farm – especially an organic farm – could have serious repercussions for the farmer and the farm’s economic viability.

PA Wastewater spills by county

Frac pond and lining

And when you add in the forced pooling concept, the problem becomes more complex.

Does a spill or blowout on the farm destroy the organic certification, and if so for how long? Who is responsible for the economic hardships of such an incident? What are the public health implications of consuming food that has been contaminated either with the chemicals used to fracture the shale or the constituents of the wastewater that returns to the surface and is held in large ponds? (Wastewater can contain heavy metals, volatile organic compounds, total dissolved solids, and is high in salinity.) For example, the Department of Agriculture quarantined several PA cattle in July that came into contact with one of the holding ponds in order to reduce the risk of those chemicals being passed along through the food chain.

I acknowledge that there can be benefits to drilling for farmers in this blog post. However, from our experience, many farmers are only being educated by the industry about the benefits to leasing. E.g. “You can have your cake and eat it, too.” But as our one friend put it, “What are the odds that the cake cannot be eaten?”

To find an organic farm near you, visit this site. If you have geo-located data showing where organic farms are located, add it to the DataTool or contact us at malone@fractracker.org so that we can load the dataset for you.

By Samantha Malone, MPH, CPH – CHEC Communications Specialist and BCHS Doctoral Student, University of Pittsburgh, Graduate School of Public Health

Water Contamination Potential

When the ‘new’ methods for gas extraction first appeared on the horizon in Pennsylvania, many citizens expressed concern that their water could become contaminated by the hydraulic fracturing process used to obtain natural gas from the Marcellus Shale. At the same time, the natural gas industry’s PR group, the Marcellus Shale coalition, claimed that “hydrofracking has [a] safe record and spurs [the] economy.” Preliminary research conducted by the Agency for Toxic Substances and Disease Registry (ATSDR) and the U.S. EPA in Pavillion, Wyoming suggest that a portion of citizens’ concerns might be warranted. (To learn more, read the PDFs numbered 2, 3, and 4 at the end of this post.)

Some researchers believe that gas extraction cannot be done without negatively impacting water quality due to the likelihood of well casings leaking over time (Dusseault, 2000). See excerpt below:

The consequences of cement shrinkage are non-trivial: in North America, there are literally tens of thousands of abandoned, inactive, or active oil and gas wells, including gas storage wells, that currently leak gas to surface. Much of this enters the atmosphere directly, contributing slightly to greenhouse effects. Some of the gas enters shallow aquifers, where traces of sulfurous compounds can render the water nonpotable, or where the methane itself can generate unpleasant effects such as gas locking of household wells, or gas entering household systems to come out when taps are turned on. Methane from leaking wells is widely known in aquifers in Peace River and Lloydminster areas (Alberta), where there are anecdotes of the gas in kitchen tap water being ignited. Because of the nature of the mechanism, the problem is unlikely to attenuate, and the concentration of the gases in the shallow aquifers will increase with time. (Dusseault, 2000)

Updating PA’s 1989 Cement Regulations

In an attempt to reduce the risk that the increased drilling in PA would negatively impact groundwater and drinking water supplies, the PA Environmental Quality Board published its proposed rulemaking measures to update existing state requirements for many of the processes involved in natural gas drilling, including: casing and cementing the well, monitoring and inspections, and plugging of oil and gas wells. (A significant portion of the existing regulations in PA that dictate water supply replacement and how gas wells are constructed were created in 1989.)

Whether natural gas drilling – when done properly – can contaminate well water or the acquifer from which well water is obtained is a significant research question. Public health would suggest that this is an imperative issue considering the number of violations sited against companies drilling in Pennsylvania by the PA DEP. (See map below that shows Marcellus Shale wells drilled since 2007 and violations as of September 22, 2010. To view an individual record, click the “i” in the toolbar below the map and then click on the record about which you would like to obtain more information.)

[image removed]

The potential impacts that the natural gas industry could have on water quality and public health are some of the major reasons that the U.S. EPA is conducting a $1.9 million study on hydraulic fracturing, including a life-cycle analysis of the process. In order to better understand the relationship between drilling products and water resources, the EPA recently sent a letter to select hydraulic fracturing service providers that requests they release the constituents of their fracturing fluid, as well as specific information about other industry processes.

References and Additional Publications

1. Dusseault MB. 2000. Why Oilwells Leak: Cement Behavior and Long-Term Consequences. Society of Petroleum Engineers Inc.
2. ATSDR Health Consultation, Pavillion, WY – Evaluation of Contaminants in Private Residential Well Water
3. EPA, Pavillion, WY – Expanded Site Evaluation – Analytical Results Report
4. EPA, Pavillion, WY – Conceptual Site Model