Laserfiche WebLink
-56- <br />• MR. HOLDER: ...the design for over 9, here. That's an intensity, a rate <br />of -- doesn't rain for an hour. <br />MR. BARRY: No, for 5 minutes. <br />MR. DANIELSON: Then 7 inches per hour far 5 minutes. <br />MR. JOHNSON: MY apologies. We did look, initially, at short term, high <br />intensity storms, and it turns out -- we analyzed a suite of storms, all the <br />way from very short term, high intensity, advanced up through the larger <br />storms. It turns out, for almost all of our facilities -- for a'!1 of our <br />facilities, the 100-year, 24-hour storm was the storm that governed. As a <br />result, that is the design basis for all of the surface water diversion and <br />sediment-control facilities. <br /> MR. HOLDER: Well, that's the highest volume of water, but snot <br />. necessarily the highest velocity of flow or the "Q" value of flow. <br />MR. JOHNSON: That's correct, that's correct. <br />MR. HOLDER: So that erosion problems might be... <br />MS. BALDRIGE: I believe it was evaluated on the peak flows.. <br />MR. HOLDER: Was it? <br />MS. BALDRIGE: Yeah. <br />MR. JOHNSON: The diversion ditches, for instance, were desiigned... <br />MS. BALDRIGE: ...for peak flows between 12 and 228 CFS. <br /> <br />