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TABLE YA WATER QUALITY IN RALSTON CREEK <br />1998.2007 <br />STATION SWAWD <br /> AWD SW-AWD SW-AWD SW-AWD SW-AWD SW-AWD SW-AWD SW-AWD SW-AWD <br />SW MIN MAX MEAN MEDIAN COUNT ND %ND <br />- <br />SW-AWD SW-AWD SWAWO SW-AWD SW-AWD SWAWD SW-AWD SW-AWD SW-AWD SW-AWO SW-AWD <br />7/06 428106 <br />1 429 <br />W 429,06 926!06 t 026R11' 32BR17 62~~ 95ID7 0 0% <br /> 725/05 2I18Kr 3 27A5 127/05 5rd1N5 6 22/05 7(d7/OS 8(dOrVS 1M6i05 71!30105 22606 <br />212 , 7.3 8.3 7.78 7.8 7 <br /> 235 182 257 213.0 192 7 0 0% <br />pH (Md unRS) <br />162 <br />~ 133.9 128 17 0 0% <br />Conduaivuy (umtas) t W 150 <7 <br />, 1~ 238.6 5 6 3 50% <br />Total dissolved adids 71 78 75 76 3 0 O% <br />Total ed so0ds <70. <10. 5 5 2 2 100% <br />Hardness, total <br />76 39 132 71.0 70 13 0 O% <br />Cartonele `'^~ 76 700 1W 100 100 1 0 0% <br />Bkarborate <br />62 34 170 66.2 67 i6 0 0% <br />Nkalini . DiasoNad d9 62 0.1 0.5 0.2 0.15 4 3 75% <br />AIXaBnay total 0 1 0.38 0.25 4 1 25% <br />NRrete Nitrogen 24.6 14.6 32 23.1 222 17 0 0% <br />Ammonia, tool <br />15.5 28.1 <br />10.1 <br />6.7 21 <br />10.6 9.25 i6 <br />0 0% <br />Cddum 69 9'S 6.6 1.4 9.8 6.1 6.2 17 0 0% <br />Sodium, diasoNeO 4 <br />fi 6'7 1 5 1 12,6 2268 1.5 16 0 0% <br />Magnesium, dissolved . <br />1 1.2 15 8.2 42 18.6 15 10 0 0% <br />Potassium, diseolved 9 ~ 0.3 0.3 0.3 0.3 3 0 0% <br />SJlate 25 9 46.4 23.1 22.1 18 0 O% <br />Fluodde. total t7 ~' Ne Na Na Na 0 0 Na <br />Chbdde 3 W <br />2 <br />0 c0 <br />2 <0.2 <0.1 <0.5 0.133 0.1 23 21 91% <br />Plwaphorous <0.2 W,2 <0.2 W.2 0.3 . <br />. . <p,2 <0.1 0.4 0.148 0.1 12 9 75% <br />Aluminum, dissolved U'4 ~.1 0 001 <br /><0 <br />001 <0 <0 <br />001 <0.001 <0.001 <0.001 0.00180 0.0005 23 23 70096 <br />Numinum, total `0'001 ` <0.001 <br />W'OOt 1 <br /><0.0 . <br />. . <0.001 <O.W1 ~.DOt 0.008 0.0005 13 13 100% <br />Ardimony, dissdvetl <0.05 ~~ <O.W3 <0.003 0.0133 0.0133 2 2 100% <br />ArNmony, lotef <0.1 W.W1 <0.001 O.W82 0.005 14 14 1170% <br />Ararat, dissolved W <br />001 c0.001 0.03 0.03 0.03 0.03 1 0 0% <br />Arank, ~~ . 0.03 0.03 O.IX90 0.03 2 0 094 <br />Badum. disadved <0.002 0.002 0.001 0.001 3 3 100% <br />Barium. total Na Na Na Na 0 0 Na <br />ae 'um, dissolved <0.0002 <0.0002 0.00023 0.0001 3 3 100% <br />Boron, total <br />W.005 <0.005 <br />0.0025 0.0025 3 <br />3 100% <br />Cadmium, dissolved Na Na Na Na 0 0 Na <br />CNOmium, dissoNad x.005 <O.WS 0.0025 0.0025 1 1 100% <br />C snide, total 003 003 <br />003 0 <br />0 003 <br />0 <0.005 <O.W7 <0.02 O.W39 0.00275 22 16 73% <br />Copper c0,pp$ <0.005 m.1701 0.003 0. . <br />. . <o.6os omz ~.m o.t7o3z91667 o.gon 12 11 9zx <br />copper, ai>.alvea <0.01 w.o1 <0.03 <0.03 0.13 O.O4W875 0.015 16 9 56% <br />copper, total 0.13 <0.03 0.06 <0.03 O.R 0.196 0.07 11 2 18% <br />Iran. diaeoNed 0'72 <0.03 Na Na Na Na 0 0 Na <br />IrOn.lotal <br />wapended <br />Iron 03 <0.03 <br /><0 0.78 0.19 <0.03 W.03 <0.03 <0.03 0.19 0.063571429 0.015 7 <br />07 7 <br />0 5 71% <br />2 29% <br />, <br />Iron, Fertous (Fe2+) 0.59 c0 ~ . <0.03 0.69 <br />~.W2 W.002 . <br />0.221 <br />0.013 0.013 2 2 100% <br />Iron, Fertk Fe3+) <0.005 0.002 W.W 0.0087 0.0025 14 13 93% <br />Lead, dissolved `0.0J <0 <br />61 01 <br />0 w.o1 <0.01 o.oz o.oa;363636 0.605 2z 16 ez% <br />Lead.mw ol <br />o 0.0 <o.ol o.ol m.ol . <br /><o.ol . 01 <br /><0 <0.01 o.a o.o1z7 o.oos 11 a 73% <br />Marlganeae,aieaoNea . <br />0.01 <0.01 . <0.0002 <0.0002 0.0002 0.0001 4 4 100% <br />Ma area, total <0 <br />0001 <0.0001 0.0132 0.0013 0.0007 12 9 75% <br />Merwy. diasdvad W.001 <0001 W <br />005 005 <O <br />WS <br /><0 WS <br />m . <br /><O.W5 m.0005 <0.1 0.005032609 0.11025 23 21 91% <br />Merovy, total `0'~ <O.ODS <O.WS <0.005 . . <br />. . <0.01 <0.04 0.02 0.02 3 3 100% <br />Molybdenum, disaoMd W.005 x.005 0.003 0.0025 3 3 100% <br />Nkkel, dissolved W.17002 <0.0002 0.001125 0.0003 4 4 100% <br />Selenium, dissolved <0.001 <O.W1 0.019 0.004 0.0005 12 11 92% <br />SiNar, dissolved c0.01 <0,01 <br />W <br />001 <br />001 <br />001 <0 <br /><0 <br />001 <br />x <0.001 x.001 <0.001 0.000' 0.0005 23 23 100% <br />Silver, total x.001 <6.OD1 <0.001 <0.001 . . <br />. . <0.01 <p.01 0.005 0.005 3 3 100% <br />ThalFum, dissolved 001 <br /><0 <0.0001 <0.0001 0.0128375 0.0005 12 12 10096 <br />Vanadium, dissolved `0't ~.1 . <0.005 0.02 0.0078 0.0025 6 1 67% <br />Thamum, total m.ao5 m.o1 o.aosl o.t7n 7 s 71% <br />zinp,aieaplvea <br />tmm <br />zinc <0.01 m.o1 <br />5 <br />0047 <br />0029 0 <br />0015 0 <br />0 <br />0.0011 <br />0.0025 <br />0.0038 <br />0.00 <br />0.0008 <br />% <br />Wi6 <br />6% <br />, <br />Ned <br />d' <br />W 0021 0.0017 <br />0 0.0016 0.0027 0.0019 0.0021 0.0012 0.0042 0.005 0.008 . <br />. <br />. <br />003 0.0008 0.0003 0.00 61 <br />O.000G O.O 40 6 <br />pao <br />Uren <br />m, <br />M <br />d . <br />OW3 <br />0001 <O <br />0 <0.0003 0.0008 0.0005 0.0004 <0.0003 <O.W03 <0.0003 <0.0003 <0.0 0.0025 0.0025 0.0055 0.004 0.001 2 0 0% <br />e <br />UreNUm. wapa <br />Uranium, Idol . <br />. Na Na <br />Na Na Na Na 0 <br />Na Na 0 0 Na <br />0 Ne <br />Ttwdum-228, dis. (pCi/L) Na Na Na Na 0 0 Na <br />Thodum-230, dis. (pCtlL) 2 <0.2 0. <br /><0 <0.2 1.4 0.33 0.30 59 20 34% <br />Thodum-232, dis. (pCOL) <0 <br />2 4 <0.2 <br />3 0 <br />0 0.4 <0.2 <0.2 <0.1 <0.2 0.6 . <br /><0 <br />2 <0.2 0. 0.6 0.09779661 0.1 59 4fi 78% <br />Radium-226, dis. (PCi7L1 <0.2 <br />. <br />2 <br />W . <br />. <br />1 c0 <br />2 <br />1 <0 <br /><0 <0.2 <0.2 <0.2 <0.1 <0.2 <0.1 . <br /><0 <br />2 <0.2 <0.2 0.1 0.1 1 1 100% <br />Radium-226. . ( CiIL . <br /><0.2 . <br />. <br />. . 3.1 6.2 4.65 4.65 2 0 0% <br />Radium-226, total (pCi/L) <0.3 2. 1.075 1.075 2 1 50% <br />Gross NPM. dis. (pCi/L) <br />Gross Beta, dis. CUL <br />NOTES. MmMUn uaeaa ®kJYe4wMaaeaea eNecoon turn (12OLI <br />r4l=numEe M noiMelWa <br />Rea4a are in mpM1 uNew dMrvnve nded <br />Page 4 of 25 <br />