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Basin is out of the shallow alluvial system and usually you're dealing with the sulfates that <br />are real high. <br />Roger Day: <br />I remember back when we were doing the EIS work for White River Nahcolite, that we took <br />our worst -case scenario where we took all the tanks 10 times a month and blew them into the <br />aquifer system. You know, into the present drinking water aquifer system. Here's this much <br />volume of material. And when you took these square miles and thickness, the actual impact <br />of that, by the time they come up at springs at the other end it was a nondetectable amount. <br />It's a really big aquifer system. It'd be tough to really get up there and make any kind of a <br />global change in that aquifer system. And it's kind of beside the point as far as our <br />protection and our monitoring and our plan. But, if all else fails, if you haven't created a <br />whole big global issue within the aquifer system. <br />Allen Sorenson: <br />From the state's groundwater protection standpoint, that's what we're looking for is <br />establishing wells that are going to be called compliance wells, and knowing what the <br />baseline is. If the baseline shows that there's already some contamination in there, for <br />example in the A- Groove you've got sulfates that are close to the drinking water level, then <br />you get, credit for that. That's fine if there's some preexisting natural contamination and you <br />can't make it any worse than it is. So, that's why you have compliance wells is for numeric <br />protection levels established based on the ambient quality and that's where it has to stay. <br />Roger Day: <br />Back at White River the one thing that we did, we did impact the drinking water source. We <br />had a 10- gallon -a- minute injection for a long period into that dissolution surface, that's the <br />ugly water, which moved it into the B- Groove. I was flabbergasted that there was a UIC <br />disposal well permit issued for American Soda. We already proved by accident that you <br />could easily move the water from the dissolution surface to the source of drinking water, it <br />was sort of injected in there. And that's only a couple of miles away. I think that's why I put <br />that focus of putting a piezometer into the dissolution surface to show that we don't <br />pressurize it to drive it into the B- Groove. That's our main protection. I really feel that with <br />that, we have a major piece of protection on our side. Then there is the gas annulus in the <br />well section passing through the source of the drinking water. If it leaks, we know that we're <br />leaking gas not solutions, and make sure that we watch the piezometer at the dissolution <br />surface. We've already got 99 percent protection right there in those two items. The rest is <br />just adding fallback positions and it's not nearly as significant as those first two. <br />Paul von Guerard: <br />I had a question on Jim's comment about the continuity between what all is going on. You <br />mentioned that you weren't going to use or hadn't planned to use the micropurge process. <br />You were going to use a different way to get your samples out of the well. Maybe the <br />question is, how do you plan to sample the wells? What's the process? <br />Roger Day: <br />Nitrogen lift through a small pump, like White River does. There's two techniques. If it's <br />into the drinking water source, you can just pull it out of the ground and get your sample. <br />One technique is to just run the nylon tube down and submerge it by 100 or 200 ft, opening it <br />28 <br />