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Ned Banta: <br />I still think we're talking about up to 5 years travel time between your closest injection well <br />and those wells. <br />Roger Day: <br />That's why they're our secondary not the primary system. <br />Ned Banta: <br />And now that I see this map with the distribution of those, I don't have as big a concern <br />about it being downgradient. <br />Allen Sorenson: <br />In terms of what you were talking about, Jerry, the regional gradients and so forth there've <br />been lots of maps of regional gradients. I was wondering more how well your gradients are <br />understood right in the lease area —how these existing wells are there so you can really get <br />the gradient direction down in your local area, not only the horizontal gradients but the <br />vertical gradients as well. Is it clearly demonstrated that you have downward gradients from <br />the upper aquifer or the lower aquifer in your lease area? <br />Jerry Daub: <br />Again, at the TH -75 -7A and 7B wells the upper aquifer is about 10 ft higher than the lower <br />aquifer. That's the closest to the lease you can get to that type of data along those lines. The <br />other data we have is from BLM, at CA tract that was collected in 1985. It shows a <br />groundwater flow to the northeast and also there's a reference, Professional Paper 908, also <br />shows that same trend. Again, that's more on a regional basis. As we drill these wells, we <br />would take data as we go. <br />Allen Sorenson: <br />Yes, but if your only talking about drilling a single A- Groove or a single B- Groove or the <br />dissolution surface, that just gives one more point in each aquifer. It doesn't help you a lot <br />with the gradient. <br />Roger Day: <br />There's a fair amount of USGS data. <br />Allen Sorenson: <br />Locally? On your lease? <br />• <br />Jerry Daub: <br />It's not on the lease but in the area around the lease. <br />Roger Day: <br />You combine this with more here (White River) from my knowledge, there are a lot of wells <br />and lots of data showing where it goes. The Cross V is about as far that direction, to my <br />knowledge, it's just the same there as here. As we follow this in terms of the USGS data, it's <br />been consistent. <br />24 <br />