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<br />. <br /> <br />VIII-2 <br /> <br />, <br /> <br />Because of the higher reliability of the water supply, it is probable that <br />the occupation rates of the existing units will be higher, particularly <br />during the winter months. This will increase the quantities of septic tank <br />effluents discharged to Willow Creek and the underlying groundwaters. This <br />will result in a further deterioration of these waters by nitrates, trace <br />organics and other constituents not treated by septic tanks. These effects <br />will not be felt by the water supply of the residents in Allenspark because <br />of the central water system. These effects, however, will be felt by down- <br />stream water users. <br /> <br />AQUATIC AND WILDLIFE EFFECTS <br />Willow Creek is a stream which naturally experiences wide fluctuations in <br />flows and approaches a zero flow condition a large part of the time. As such <br />the fish life in the stream, if it exists, would be minimal. <br /> <br />Since the minimum flows in Willow Creek are currently sustained by springs <br />and septic tank return flows, it is not anticipated that there will be any <br />major effects on other aquatic species and plant 1 ife. <br /> <br />SUBSURFACE DOMAIN EFFECTS <br />As previously mentioned, the groundwaters in the area will continue to be <br />contaminated by septic tank return flows. The construction of two wells as <br />a backup water supply will eliminate these limited resources from potential <br />uses. This effect, however, is quite small since individual wells previously <br />used for domestic supplies will be eliminated. <br /> <br />Excavation for pipelines and other facilities will temporarily disrupt the sub- <br />surface domain in the immediate are& of construction. <br /> <br />SPECIAL AND NEIGHBORING AREA EFFECTS <br />Allenspark is not a heavily populat~d area. Ferncl iff is its closest neighbor, <br />with a very small summer population of about 75 people, and a year-round pop- <br />ulation of possibly 10 people. Ferncliff is about three miles downstream from <br />Allenspark with the iarger town of lyons about twenty-four miles downstream of <br />Al1en,park. Rock Creek intersects the Town of Ferncliff after it is joined by <br />