Laserfiche WebLink
TABLE 7 <br />Comparison of 1991 Ground Water Quality with <br />Historic (1980 -1990) Levels for Parameters Whose <br />Historic Levels Were Exceeded During 1991 <br />1 <br />Parameter GW -N3 GW -N4R GW -N9 GW -N27 <br />EC (field) 3160/2810 6160/5800 3120/(3250) 3420/3180 <br />pH (field) 6.72/6.66 <br />Temp (field) 17.1/16.7 <br />Alk (mg /l) 440/400 <br />Bicarb (mg /l) 556/540 488/488 <br />B (ug /l) 290/290 <br />Ca (mg /l) 430/(447) 567/(580) <br />Pb (ug /l) 110/20 <br />Mg (mg /l) 723/(785) 188/(192) <br />Na (mg /l) 118/110 14/(15) 74/70 <br />SO4 (m2Ll) 3713L(43051_ 1688L/1865) <br />1 <br />All metals expressed as dissolved <br />118/110 Maximum 1991 concentration /maximum historic concentration <br />14/(15) Minimum 1991 concentration /(minimum historic concentration) <br />15 <br />