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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />leHA <br /> <br />Final ReDO". Phase] Ro4lAline Water 0uaIitv Data Collectioa Stodv <br /> <br />SeDl...ber 1995 <br /> <br />CONCLUSIONS AND RECOMMENDATIONS <br /> <br />Based on the data that has been generated during the first year of the Phase I baseline study, we <br />would offer the following conclusions and recommendations: <br /> <br />(I) In the Cherry Creek surface flows along the study reach, the nitrate-nitrogen and <br />phosphorus loading to Cherry Creek Reservoir is approximately equal to, or less <br />than, the background loadings observed at the upstream end of the reach <br />(Castlewood). Increases and decreases do occur throughout the study reach, but <br />generally seem to be assimilated either through adsorption mechanisms or through <br />utilization by phreatophytes. <br /> <br />(2) Alluvial ground water quality data indicate some changes in nitrate-nitrogen <br />loading and phosphorus loading throughout the study reach, although loadings are <br />generally lower at the intermediate stations than at the upstream and downstream <br />ends of the study reach. Similar to Cherry Creek surface flows, the phosphorus <br />loading to Cherry Creek is approximately equal to, or less than, the background <br />loadings observed at the upstream end of the reach (MW-I), while nitrate- <br />nitrogen loadings are slightly higher at the reservoir than at the upstream end of <br />the reach. <br /> <br />(3) The cumulative phosphorus loading to the reservoir from the main stem of Cherry <br />Creek is approximately 24 percent of the total allowable loading to the reservoir. <br /> <br />(4) Non-point sources appear to be contributing the bulk of the nitrogen and <br />phosphorus loading to the reservoir from the main stem of Cherry Creek at this <br />time. <br /> <br />-16- <br />