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<br />4Jerature d.1ta indi;::at~ e,nllrlco'(it i<:'9 in flow p:lth~
<br />h .~r+~ not tuLly un,I"~r::;lol'd. the progl-.lln 5h0W~d that.
<br />aqulfer at appr0lCimiltely 100 f<.!et into the ~lorri5on
<br />Fonn.nticm was inten:onll.;!cted with the Scott, Marland.
<br />w:::::..and Jam.:>" i.;rells.
<br />I-
<br />I['-Results of Cleaning Bnd Plugging Wells
<br />
<br />I'.)Th " . .
<br />e lnJect lon of 4,000 CUblC feet of cement he tween
<br />1,000 and 1,350 feet at the Marland Intercept Well has
<br />significantly decreased recharge to the shallow aquifers
<br />in the vicinity of the Marland Well. The upper I,SOO
<br />feet of the Scott Well annulus was sealed with 2,200
<br />cubic feet of cp.ment and the upper Mordson aqui fer in
<br />the James I,'ell was sealed when that well was plugged
<br />with 400 cuhic feet of cement. Water level9 in all
<br />observat ion well scant inued to decl inc and reduct ions in
<br />surface discharge were noted at several of the spring
<br />and seep stations since the plugging of the Scott,
<br />Marland, and Jilme.s Wells. Insufficient data elCist to
<br />distinguish hetween natural su.face discharge fluctua-
<br />tions and discharge reductions due to plugging the
<br />wells; declines in observation well-....ater levels are in
<br />direct response to plugging the ....ells (Figure 2). Con-
<br />
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<br />tinut~d m':lnir.Hing is n~cp-SS,1rY to follow the effects of
<br />ptuggin~ ,1n lhe ilydrv10bi.: ~ysrt'1Il l)f Lhc DOLnl.'.
<br />
<br />FUTURE ACTIVITIES
<br />
<br />A 3-year program i.s being, considered to monitor chang~s
<br />in wat~r levels. spring flows, and water quality. This
<br />monitoring p~ogram would be revie~ed each year to ensure
<br />that it is necessary and meeting objectives.
<br />
<br />A 3-year program is also being considered to continue
<br />monitoring the White River and creek flows in the Heeker
<br />Dome area. Measuring river flow and ~ater quality above
<br />and below the Dome is the most pract ical methorl of
<br />determining reductions in salt loading.
<br />
<br />Limited geologic mapping of the Heeker Dome ~ill be con-
<br />tinued over the next year and the results reported in
<br />the Phase I Report. A detai.led geologic map of the
<br />Dome's surface would be beneficial to better under-
<br />standing the role of surface fractures and jointing in
<br />movement of ncarsurface water. The Draft Phase I Rerort
<br />should be completed by CH2M Hill during November 1982.
<br />
<br />
<br />OBSERVATION WELL
<br />RESULTS
<br />
<br />I-
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<br />1981
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<br />1980
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<br />1982
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<br />
<br />FIGURE 2, OBSERVATION WEllS Sf-K:M A CONTINUING DECREASE IN \~ATER lEVELS SINCE THE THREE OIL WELLS WERE PllXiGED.
<br />
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