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<br />> <br /> <br />the well was plugged,there was a substantial (about 20 percent) decrease <br /> <br />, <br />I ! in sodium and a slight (about 6 percent) decrease in bicarbonate as com- <br /> <br />pared to the August 5 sample. <br /> <br />Because of the fluctuating flows and the irriBated land between the <br /> <br />.' <br /> <br />well and the mouth of Piceance Creek and the lack of flow measurements <br /> <br />for FllPCA, samples, Table 8 does not sho\'I as much improvement in the water <br />, <br />quality Js miGht be expected from plugging the "ell. However, Table 9, <br /> <br />the rnineJal concentration of the samples adjusted to the concentration of <br /> <br />the August 5 sample, indicates that aftcr the wcll was plugged, the pro- <br />portirns of the minerals changed as follows. <br /> Ca I-'.g Na K HC~ Cl 804 <br />Before plugging well 40 85 55l 4.3 l,340 69 435 <br />After plugging well 70 119 464 6.l ' l,220 59 573 <br />Percent change +75 +40 -l6 +42 -lO _111 +32 <br /> <br />The analysis indicates that the water quality has improved after the <br /> <br />yell was plugged as the ratio of sodium, bicarbonate, and chloride to the <br /> <br />total mineral has decreased. FUrther quality improvement should occur as <br /> <br />the return flows drain from the irrigated land dOl'lnstream of the well. <br /> <br />CONCillSIONS <br /> <br />Plugging the Meeker and Piceance Creek wells decreased the arUlual <br /> <br />flow of the White River by about 2,380 acre-fect. It is the opinion of <br /> <br />" <br /> <br />the'Regional Geologist, hO\',ever, that the flow from the plugged wells <br /> <br />will return through natural spril1g~er thE;' rechE,ree area \'Iith an im- <br /> <br />proved ~uality but no decrease in the annual discharge of the ~~ite <br /> <br />2013 <br /> <br />River. illlether or not this occurs cannot be detel~ined as the discharge <br /> <br />of the wells was less than a half percent of the average Brillual discharse <br /> <br />of the ,nli te Hi vel'. <br /> <br />lO <br />