Data driven discussions about gas extraction and related topics.

Core Habitat Biological Diversity Areas Now on FracTracker

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This page has been archived. It is provided for historical reference only.

CHEC would like to thank the Western PA Conservancy for allowing their raw GIS data to be published online. The following snapshot was creating by layering two separate datasets:

  1. Core Habitat Biological Diversity Areas
  2. Marcellus Shale Drilling Permits in PA from 2007 to Aug. 2010

A core habitat area is the essential habitat of the species of concern or natural community that can absorb very little activity or disturbance without substantial impact to the natural features. Zoom in on the map below to view these sensitive areas and their proximity drilling permits in closer detail. (Just click on the zoom button in the gray toolbar.)

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Data uploaded by Josh Knauer, CEO of the data tool’s developer, Rhiza Labs.

Permitted Wastewater Facilities and the Monongahela River

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This page has been archived. It is provided for historical reference only.

During a recent FracTracker training session, CHEC’s director Dr. Conrad Dan Volz used the following maps created with FracTracker’s DataTool to demonstrate the potential impact that additional oil and gas activities in Pennsylvania could have on the state’s watersheds and waterways. The first map you see below shows all of the facilities in PA that applied for and received approval from the state to accept and treat the liquid waste that results from oil and gas operations.

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Some things of note in the map above:

  1. The number of facilities in the Monongahela drainage, which is a source of drinking water for many people in the Pittsburgh area.
  2. The facilities in the Allegheny River and Susquehanna River drainage.

In the map below, we have zoomed in on the Monongahela River drainage to take a closer look at the 13 permitted facilities that could impact that area.

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The signifiant number of permitted facilities along the Monongahela River got us wondering what the cumulative impact could be on the Monongahela drainage, especially since the TDS (total dissolved solids) level fluctuated above drinking water standards in 2009; below are some approximate calculations on the amount of contaminants that could be discharged into the river from those facilities on any given day.

Major Facilities Accepting Wastewater in the Monongahela Drainage and Volume Permitted

Permitted Site 1000 Gallons/Day
1) McKeesport – Monongahela (POTW) 115
2) Clariton Municipal Authority – Peters Creek (POTW) 60
3) Mon Valley Brine (Monongahela River) 200
4) Authority of Borough of Charleroi – Monongahela (POTW) 30
5) Municipal Authority of Belle Vernon – Monongahela (POTW) (2 permits) 10
6) Municipal Authority of Belle Vernon – Monongahela (POTW) 5
7) Borough of California – Monongahela (POTW) 10
8) Brownsville Municipal Authority – Dunlap Creek (POTW) 9
9) Franklin Township Sewer Authority – South Fork Tenmile Creek (POTW) 50
10) Waynesburg Borough – South Fork Tenmile Creek (POTW) 8
11) Shallenberger-Ronco – Monongahela (NPDES permit effective. As of 10/31/09, WQM permit in progress.) 500
12) Shallenberger-Rankin Run (NPDES permit effective on 11/1/2008.) 125
13) Shallenberger Connellsville – Youghiogheny 1,000
14?) Somerset Regional Water Resources (East Branch Coxes Creek) (RO and Evaporators proposed. NPDES permit granted on 12/17/2009. Amendment to the NPDES permit is pending.) ?
Range of TGD: 612 – 2112

Concentrations of Selected Important Contaminants from Marcellus Shale Flowback Water (FBW)*

Conversions to pounds of contaminant per day into Monongahela drainage

  • 612,000 gallons FBW * 3.79 L/gallon* 161,636 mg/L dissolved solids*2.2*10-6 pounds/mg= 824,825 lbs. of TDS
  • 612,000 gallons FBW * 3.79 L/gallon* 2,950mg/L Barium*2.2*10-6 pounds/mg= 15,053 lbs. of barium
  • 612,000 gallons FBW * 3.79 L/gallon* 3,280mg/L Strontium*2.2*10-6 pounds/mg= 16,737 lbs. of strontium
  • 612,000 gallons FBW * 3.79 L/gallon* 95,400 mg/L chloride*2.2*10-6 pounds/mg= 486,812 lbs. of chloride
We will add more information to this post as we investigate the above amounts of contaminants and how they compare to the volume of fresh water in the river and to other types of discharges that regularly enter the waterway.
Related Information:

Updated Marcellus Shale Wells Drilled Snapshots

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This page has been archived. It is provided for historical reference only.

Our GIS Specialist, Drew, has added an updated dataset from the PA DEP onto the data tool showing all of the Marcellus Shale wells that have been drilled in PA since 2007. (We don’t have the records for anything before that – YET – because all of those records are still just on paper.)

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We know that leases are already being sought after and signed within Pittsburgh’s city limits. Tell us what you think about drilling that is occurring near sensitive areas (e.g. on school properties, biologically diverse lands, or in major cities). Do you feel that the regulations and policies currently in place are stringent enough to properly protect public health? To learn more about some of the issues associated with gas extraction activities, be sure to check out the PA Land Trust Association’s incident report.

Marcellus Shale Drilling – Citizen Experiences

Photo Left: Fire that erupted on a drill pad in Hopewell Township PA. Photo courtesy of local resident. Atlas Energy drilling site. 3-31-10

CHEC’s Marcellus Shale Documentary Project

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This page has been archived. It is provided for historical reference only.

One of the exciting tasks that we are working on right now is a documentary project surrounding gas extraction activities in the Marcellus Shale region. This project aims to collect & share citizens’ experiences that they have had with the industry. As an environmental public health entity, we are of course interested in the potential health & environmental impacts that this type of drilling may cause. However, CHEC researchers are documenting all types of stories from people living near gas extraction activities, including: road degradation, privacy concerns, social or cultural changes in nearby towns, environmental threats, water contamination, & even positive leasing experiences. Learn more about the process of drilling for methane gas in this region.

The project’s scope focuses on the stories of people living in Western PA, but we have started to make contacts in Central & Northeastern PA lately, as well. Soon there will even be a dataset in the data tool that lists all of the documentaries we have done so far & shows geographically where they have taken place (along with key words & dates). We will be following the project’s progress on this blog, so check back often. If you have an experience with drilling that you would like to share with CHEC, please contact us at 412-624-9379 or malone@fractracker.org.

Check out one of the audio/visual recordings we have done:
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Field Researchers

The fantastic researchers currently working on this endeavor are:

  • Kyle Ferrar, MPH
  • David Higginbotham
  • Shannon Kearney, MPH
  • Dolores Kirschner
  • Marah Kvaltine

Now for the technical part: The Methodology

Working through local key informants in Washington, Greene, Bedford, & Fayette Counties, who are trusted contacts in the affected community, the Center for Healthy Environments & Communities will recruit residents, local authorities, law enforcement officials, business owners, & farmers in regions impacted by the Marcellus shale gas extraction industry. The recruiter will inform the potential project participant of the purpose of the project, the process of the documentation procedure, the voluntary nature of their participation, & that their responses may be anonymous if they desire. Once the potential participant agrees to be interviewed, the interviewer will obtain written informed consent, which includes an agreement to have the interview videotaped or digitally recorded, along with consent for the ability to publish the interview on the Center’s website & publications. Once the interviewer has obtained written informed consent, a date, time & place will be established for the formal interview. The interview will take place then in a mutually agreeable manner with the participant agreeing to either be videotaped or digitally recorded. If there is documentation the participant has already obtained, the interview will request copies.

CHEC Philosophy & Practice

By Charles Christen, DrPH, MEd – CHEC’s Director of Operations

The philosophy of the Center for Healthy Environments and Communities (CHEC) is to conduct environmental public health research utilizing both a bottom-up & top-down approach. This approach is rooted in the philosophy of public health practice, which emphasizes prevention. The bottom-up approach identifies the concerns & problems affecting the health & quality of life of a community. A community can be a group of people with a shared interest or shared geography. A conceptual model, the first step in exposure assessment, is created to determine the most significant pathways of exposure to the contaminants related to these problems & concerns. The purpose of this bottom-up approach is to generate hypotheses for more advanced research. The top-down approach utilizes the hypotheses generated through community involvement. Research design & methodology are developed in order to test these hypotheses potentially providing insight into the potential risks to health from exposure to the identified contaminants. This philosophy provides the foundation for the mission of CHEC, which is to advance a community-based participatory environmental agenda comprised of exploratory, applied & translational research for the purpose of developing outreach & environmental health programming, as well as policy guidance to improve the environmental public health of the diverse populations in the region of Southwestern PA.

Currently CHEC is involved in a bottom-up approach to environmental public health research by conducting a project to document the perceived impacts of people who live in proximity to industrial operations related to gas extraction from the Marcellus Shale. The purpose of this project is to create a database of these impacts & ultimately a map associating these impacts with active well sites connected with Marcellus Shale gas extraction in order to better comprehend the big picture of how this industry is affecting people throughout the state of PA & in fact across the entire Marcellus Shale region. Examples of impacts that have been reported by individual citizens & groups include well water contamination, air quality problems & odors related to off gassing of volatile organic compounds from fracking ponds & condenser units, & road degradation related to increased truck traffic.

This bottom-up approach informs the top-down work that CHEC is launching to scientifically evaluate if perceived impacts are due to Marcellus Shale gas extraction operations. For example, one of the most reported problems of people living in the vicinity of Marcellus Shale drilling operations is private well water contamination. CHEC’s initial conceptual work certainly indicates that there is potential for exposure through ingestion of water to elements like strontium & barium, organic compounds such as benzene, inappropriate disposal of flowback & produced fluids, & even radionuclide’s of uranium & radium from faulty drill casings, spills & leaks, To scientifically evaluate the connection between gas drilling & extraction operations & private well water contaminants, CHEC must state a null hypothesis that there is no effect on any of the potential contaminants in well water versus a research hypothesis that there is an effect. Testing this set of questions then involves sampling enough wells for the contaminants of concern to rule out any contaminant specific results that could be due to chance (we will use a probability of .05 or 1/20 to reject the null hypothesis & accept the research hypothesis).

CHEC is working on a novel spatial statistical design to carry out this research. Please check back in the near future for information on the study design. If you would like to volunteer to have your private well water sampled as part of this study please write us at or email us to enlist. Since this is a scientific study, please be aware that you may or may not be asked to participate in the study dependant on the study design. However, CHEC will let all volunteers know if they are selected for the study, & all study participants will be notified of the concentrations of contaminants of concern in their well water.