Laserfiche WebLink
<br />ENVIRO•TEST LTD. <br />JCTION: (continued) <br />(DC7 and DC8). The Dowden Gulch station DG-1 <br />was not measured because no flow was observed <br />at this station. <br />The laboratory methodology for the total iron <br />and total manganese, total suspended solids <br />and total dissolved solids were in accordance <br />with the Standard Methods for the Examination <br />of Water-Waste Water, 14th edition, 1975, <br />published by the APHA, AWWA and the WPCF. The <br />stream flows were determined using crest gauge <br />measurements. <br />)ISCUSSION: <br />The data presented in this report is for base- <br />line information for evaluation of any water <br />quality impact that might occur. The low flow • <br />measurements reflect the slow spring snowmelt <br />therefore; any evaluation using the 1977 data <br />and the 1978 data presented in this report <br />should consider this occurance. <br />Although a significant snowfall occured during <br />the winter months in 1978, the spring snowmelt <br />occured very slowly allowing the moisture to <br />seep into the ground water aquifers. This <br />caused the main streams, such as the Yampa <br />River and the Williams Fork River, to flow <br />full while the small tributaries registered <br />minimal flow. <br />The 1977 dry winter period caused the ground <br />water aquifers to become depleted and the <br />majority of the 1978 spring snowmelt appears <br />to have partially recharged them. <br /> <br />The water quality measurements from 1977 <br />compared to this study indicated that there <br />is very little change in these streams. <br />If a wet winter is experienced in 1979, and a • <br />fast spring snowmelt occurs the water quality <br />parameters measured for this study could change <br />significantly. <br />