Additional tests were just released from the ambient air quality study in DISH, TX.
Dish: Methane analysis is in
5:39 PM Wed, Oct 14, 2009 | Permalink
Dish leaders released additional lab analysis information received today from its ambient air quality study that found exceedances of both neurotoxins and carcinogens.
Town leaders continue to urge residents to get in touch with the Texas Commission on Environmental Quality directly to convey health concerns confidentially.
I requested the laboratory review the Burgess property TIC to see if they could speciate out any compounds listed under categories of carbons (C6, C8 etc.). I also requested methane concentrations (ppmv) on all can locations.
After reviewing the methane concentrations it is clear that the two properties (9217 Chisum and Burgess) have high concentrations of methane with little break down to metabolites as seen on other properties. This is why the TIC showed no exceedences.
Please take special note of the Burgess property. The concentrations of methane are in levels approximately three (3) times usually seen invambient air (5.9ppmv). This level is extremely high and quite concerning. I have mapped all the methane levels to get a better visual. The laboratory was also able to speciate several compounds which again exceeded TCEQ’s ESLs. I have updated all summary excel sheets with the newest information.
I will be sending these results to both EPA and TCEQ for review.
I would also encourage you to direct all residents of DISH who are having health issues to contact Tony Walker (TCEQ) immediately. LINK The residents can then provide TCEQ with information that is critical to a proper investigation. TCEQ cannot act on hearsay nor will they be able to ask direct and important questions needed in an investigation. This must be done by the person themselves (or parent of minor if underage) due to confidentiality.
I will be sending a hard copy of the addendum report for your files. If you have any questions regarding the additional laboratory results please feel free to contact me immediately.
Alisa Rich, MPH, PhDc
Methane is not toxic; however, it is highly flammable and may form explosive mixtures with air. Methane is violently reactive with oxidizers, halogens, and some halogen-containing compounds. Methane is also an asphyxiant and may displace oxygen in an enclosed space. Asphyxia may result if the oxygen concentration is reduced to below 19.5% by displacement. The concentrations at which flammable or explosive mixtures form are much lower than the concentration at which asphyxiation risk is significant. When structures are built on or near landfills, methane off-gas can penetrate the buildings’ interiors and expose occupants to significant levels of methane. Some buildings have specially engineered recovery systems below their basements to actively capture such fugitive off-gas and vent it away from the building. An example of this type of system is in the Dakin Building, Brisbane, California.
In the name of decency:
SHUT DOWN THE COMPRESSORs IN DISH, TX
But that is not enough. The industry players who have ruined health and property in DISH should purchase all the land and homes for fair market value and relocate the entire town.