Laserfiche WebLink
<br />J <br />J <br />I <br />I <br />I <br /> <br />TABLE VII-C <br /> <br />Station <br /> <br />Date <br /> <br />Time <br /> <br />North of Del Norte* <br /> <br />11/11174 <br />11/12174 <br />6/14174 <br /> <br />8:40 p.m. <br /> <br />North of Oel Norte* <br /> <br />3:55 a.m. <br /> <br />North of Del Norte** <br /> <br />7:00 a.m. <br /> <br />North of Home Lake* 11/11174 9:15 p.m. <br />North of Home Lake* 11/12/74 5:00 a.m. <br />North of Home Lake** 6/14/74 3:00 a.m. <br />North of Home Lake** 6/28/74 3:30 a.m. <br /> <br />*CoTorado Department of Health Data <br /> <br />**Davis Engineering Service, Inc. Data <br /> <br />D. O. Sat- <br />Temp. uration <br />Co (mg/l) <br /> <br />D.O. <br />Val ue <br />( mg/l) <br /> <br />2 10.4 <br />0.1 10.9 <br />10 8.5 <br /> <br />10.1 <br />10.2 <br />8.0 <br /> <br />Average <br /> <br />4 <br />2 <br /> <br />9.9 <br />10.5 <br />7.8 <br /> <br />8.3 <br />8.9 <br /> <br />14 <br />18 <br /> <br />6.9 <br /> <br />7.2 <br /> <br />6.1 <br /> <br />Average <br /> <br />Diurnal variations have a major impact on dissolved oxygen <br /> <br />levels in the Rio Grande. In all locations from South Fork down- <br /> <br />stream, the dissolved oxygen during the night was found to be lower <br /> <br />than the dissolved oxygen during the day. In the interest of pre- <br /> <br />senting a conservative model the dissolved oxygen values encountered <br /> <br />during the night were modeled. The model was calibrated for the <br /> <br />VII -8 <br /> <br />Background <br />D.O. Deficit <br />(mgll ) <br /> <br />0.3 <br />0.7 <br /> <br />0.5 <br /> <br />- <br /> <br />0.5 <br /> <br />1.6 <br /> <br />1.6 <br />0.9 <br />1.1 <br /> <br />1.3 <br /> <br />~ <br /> <br />:' <br /> <br />C~. . (] _ J <br />