On call 7/9/12: Josh (Durango- San Juan Citizens Alliance), Shannon and Sara (Public Lab), Megan (RISD)
Josh: Would like to start something up based on initial April call. Use of Draeger tubes and strips. Is there lab analysis involved in this?
Hoping to have Draeger tubes (manually read- change color- % markings for ppms) and photostrips- have to be fixed in dark room (capped on site). Doesn't need to be an actual darkroom. Once fixed, take out and see the different colors on them. Data analysis- distribution curve- match Draeger tubes with photo test strip- what the colors are equal to.
Distribution of colors to that of Draeger tubes (ex. 40 strips and 8 tubes- semi quantify the two to each other).
We are testing strips to see how well they work. Goals: can we use combo of test strips and Draeger tubes to get semi-quantifiable reading of H2S source.
First step to find a well that we know emits H2S- pattern of concentric circles, see pattern of wind as it is taken from the source based on color in test strips. Produce a method in which a landowner can find out if well on land is a point source- see how much is emitted from each well- pinpoint which well is at issue
Length of test- this is what we're working on pilot testing. Historically looking at H2S from volcanoes- initially did a test for a week, then for a month (was looking at really low levels)
Josh- we need to have masks.. need to figure out the best kind to have. In longer term- imagination for test is for landowner that is being exposed to H2S (respirators to recommend- industry standard for this protective gear)
Swamp gas as opposed to production gas (comes and goes at the wells- heavy one day and less the next day). Might be interesting to leave it out for a month- what it produced over a long period of time, but wouldn't capture spikes- cumulative analysis
Anyone that would be able to lend us Jerome meter (generally measuring H2S content- has spec. in it, sucks air in- gives digital readout of H2S in air, $10,000 piece of machinery- find one to borrow and test results against it)- air quality division for H2S monitoring- use for landfills for regulatory compliance. No air quality dept. there in Durango. Closest for air quality is in Denver (at least 200 miles away). Might be helpful if we call ahead if there is a connection we can make. Can also look for university researchers, or borrow one and bring it out). Would be nice to survey space w/ Jerome meter- to know things ahead of time, precautionary measures, etc.
Should investigate in the next couple of weeks.
H2S seeps in outcrop- formation that is cold seam- coal bed methane- coal/water/gas- in order to get gas, take water off the coal- formation is shaped like a bowl- they are at northern edge of outcrop- when they started to de-water, released H2S pockets- south, across river from Humane Society- when with the county- posted signs down there- fishing part of river- cautioning people about the release- sometimes really intense, sometimes not- this could be an interesting site to try out.
Other locations- from the map that Josh sent round- Nat'l Park or Forest land that can be reliably accessed. BLM land in New Mexico. Would be a good reference point
73 State Rd 581 Espanola, NM 87532