TABLE 24. WATER QUALITY /N RALSTON CREEK
<br />1998 - 2007
<br />STATION SW-DIS001
<br />;onductivity (umhos)
<br />'otal dissolved solids
<br />'otal suspended solids
<br />iardness, total
<br />;arbonate
<br />3icarbonate
<br />\Ikaliniry, Dissolved
<br />~Ikaliniry, total
<br />Vitrate Nitrogen
<br />4mmonia, total
<br />Calcium
<br />Sodium, dissolved
<br />Magnesium, dissolved
<br />Potassium, dissolved
<br />Sulfate
<br />Fluodde, total
<br />Chloride
<br />Phosphorous
<br />Aluminum, dissolved
<br />Aluminum, total
<br />Antimony, dissolved
<br />Antimony, total
<br />Arsenic, dissolved
<br />Arsenic, total
<br />Barium, dissolved
<br />Badum. total
<br />Cadmium, dissolved
<br />Chromium, dissolved
<br />Cyanide, total
<br />Copper
<br />Copper, dissolved
<br />Copper, total
<br />Iron, dissolved
<br />Iron, total
<br />Iron, suspended
<br />Iron, Fertous (Fe2+)
<br />Iron, Fertic (Fe3+)
<br />Lead, dissolved
<br />Lead, total
<br />Manganese, dissolved
<br />Mercury, total
<br />Molybdenum, dissolved
<br />Vickel, dissolved
<br />Selenium, dissolved
<br />Silver, dissolved
<br />Silver, total
<br />thallium, dissolved
<br />Vanadium, dissolved
<br />Thallium, total
<br />Zinc, dissolved
<br />Zinc, total
<br />Uranium, dissolved
<br />Uranium, suspended
<br />Uranium, total
<br />Thorium-228, dis. (pCi/I
<br />Thorium-230, dis. (pCi/
<br />Thorium-232, dis. (pCi/
<br />Radium-228, dis. (pCi/t
<br />Radium-228, susp. (pC
<br />Radium-228, total (pCu
<br />Gross Alpha, dis. (pCi/I
<br />001 DIS001 DIS001 DIS001 DIS001 DIS001 DIS001 DIS001 DIS001 DIS001 DIS001 MIN MAX MEAN MEDIAN COUNT ND % ND
<br />DIS
<br />11119198 1 2/17/98 1/19199 3!15199 4/19/99 5/17199 6114/99 7/14/99 9/14/99 3/28/01 10/29104 8
<br />0 95
<br />7 8 0 0%
<br />8.7 7.8 7.8 7.9 8 7.9 8 8.1 7.8
<br />138 8.7
<br />1460 .
<br />1209 .
<br />1375 8 0 0%
<br />1480 1400 1420 1410 1310 1180 138 1350 445 445 1090 921 953 9 0 0%
<br />1090 1060 1030 1050 927 866 870 953 <p <14
<br />5 4.1 3.5 8 2 25%
<br />4 1 3 0 14.5 0 <10. <10. ,
<br />390 .
<br />430 407 400 3 0 0%
<br />430 390 400
<br />Na
<br />Na
<br />Na
<br />Na
<br />0
<br />0
<br />Na
<br /> 146 146 148 148 148 1 0 0%
<br /> 180 170 180 210 <170. <210. 185 180 4 0 0%
<br />190 230 210 190 180 170 119 119 230 184.1 190 7
<br />8 0
<br />1 0%
<br />13%
<br />7.7 6.3 5.4 4.6 4.6 <0.1 2.9 2.9 <0.1 <7.7 4.31
<br />31
<br />0 4.6
<br />25
<br />0 8 3 38%
<br />1 0 0 0 0 <1.
<br />77
<br />5 <1. <t.
<br />73.9 78.9 34.1 68.8 0
<br />34.1 <1.
<br />80 .
<br />70.3 .
<br />75.5 8 0 0%
<br />80 77 74 .
<br />132 180 165 13.5 27.2 13.5 185 121 155 8 0 0%
<br />150 160 160 9
<br />42 47
<br />8 54.8 11.8 11.8 58 44.9 49 7 0 0%
<br />56 49 52 . .
<br />5
<br />9 8
<br />5 1
<br />8 1.8 8.5 5.54 6.3 7 0 0%
<br />6.4 6.3 6.4 440 5.5
<br />420 430 .
<br />470 . .
<br />63.2 176 6
<br />. X ' 5
<br />560 510 520 510 ;
<br />5 1.5 1
<br />5 1
<br />5 3 0 0%
<br />1.5 1.5 1.5
<br />34
<br />23
<br />26
<br />27
<br />18'1
<br />27
<br />1
<br />2
<br />25 28 29 29 n/a Na Na Na 0 0 Na
<br /> <0
<br />1 <0.2 <0.2 0.1 0.5 0.16667 0.175 8 8 100%
<br /><0.5 <0.5 <0.5 . <0.1 0.1 0.1 0.05 0.05 1 1 100%
<br /> 014 018
<br />0 0.01 0.013 0.021 <0.001 <0.001 c0.001 <0.021 0.0119 0.014 8 2 25%
<br />0.018 0. . <0.05 0.05 0.05 0.025 0.025 1 1 100%
<br /> 007
<br />0 <0.005 <0.005 0.003 0.007 0.0034 0.0025 4 3 75%
<br /><0.003 . <0.001 0.001 0.003 0.00117 0.0015 3 3 100%
<br /> <0.003 <0.003 1
<br /><0 <0
<br />1 0.04 0.1 0.0475 0.05 4 3 75%
<br />0 ~ <0.1 . . 0.04 0.04 0.04 0.04 2 0 0%
<br /> 0.04 0.04 0
<br />002 <0
<br />001 <0.001 0.001 0.002 0.001 0.001 6 5 83%
<br /><0.002 <0.002 <0.002 .
<br />025 .
<br />0.31 0.29 0.25 0.31 0.28333 0.29 3 0 0%
<br /> 001
<br /><0 0.0002 0.001 0.0003 0.0003 4 4 100%
<br /><0.0002 <0.0002 <0.001 . <0
<br />005 <0.005 0.0025 0.0025 4 4 100%
<br /><0.005 <0.005 <0.005 <0.005 <0
<br />01 .
<br /><0.01 <0.01 0.0 0.005 1 1 100%
<br /> . Na Na n/a Na 0 0 n/a
<br /> 005
<br /><0 005
<br /><0 <0.005 <0.005 <0.005 0.1 0.01857 0.0025 7 6 88%
<br /><0.02 0.1 <0.02 . . <0.005 <0.01 0.005 0.01 0.00375 0.00375 2 2 n/a
<br /> <0
<br />1 <0.1 <0.03 <0.03 <0.03 <0.1 0.025 0.015 7 7 100%
<br /><0.03 <0.03 <0.03 . 0.15 0.15 0.15 0.15 0.15 1 0 Na
<br /> Na Na Na Na 0 0 n/a
<br /> n/a Na Na Na 0 0 Na
<br /> Na Na n/a Na 0 0 n/a
<br /> <0
<br />005 <0.005 <0.005 <0.002 <0.005 0.0021 0.0025 4 4 100%
<br /><0.002 . <0.05 <0.002 0.05 0.00967 0.003 3 2 67%
<br /> <0.002 0.003 <0
<br />01 <0.01 0.12 0.01 0.12 0.0250 0.005 6 4 67%
<br />0.01 <0.01 <0.01 . 0.13 0.13 0.13 0.13 0.13 1 0 0%
<br /> <0.0002 <0.0002 0.0001 0.0001 3 3 100%
<br /><0.0002 <0.0002 <0.0002 <0.001 0.001 0.001 0.0005 0.0005 1 1 100%
<br /> 314
<br />0 0.744 0.613 0.081 0.081 1.05 0.6474 0.7440 7 0 0%
<br />1.05 0.9 0.85 .
<br /><0
<br />01 <0.01 <0.01 <0.01 <0.04 0.0125 0.0125 6 6 100%
<br /><0.04 <0.04 <0.04 .
<br />01
<br /><0 01
<br /><0 <0.01 <0.005 <0.01 0.0038 0.0038 6 8 100%
<br /><0.005 <0.005 <0.005 . . 0002
<br /><0 <0.01 0.0014 0.0003 4 4 100%
<br /><0.001 <0.0002 <0.0002 <0.01 <0.01 .
<br />0.01 0.01 0.005 0.005 1 1 100%
<br />001
<br /><0 0
<br />002 0
<br />002 <0.001 <0.001 0.002 <0.001 <0.001 0.002 0.0011 0.0005 7 4
<br />4 57%
<br />100%
<br />. . . <0
<br />01 <0.01 <0.01 0.005 0.005 4
<br /><0.01 <0.01 <0.01 . <0.001 <0.1 0.001 0.1 0.02525 0.02525 2 2 100%
<br /> 01
<br /><0 <0
<br />01 <0.01 <0.005 <0.01 0.0038 0.0038 8 6 100%
<br /><0.005 <0.005 <0.005 . . 0.06 0.06 0.06 0.06 0.08 1 0 0%
<br />0113
<br />0 0044
<br />0 0058
<br />0 0.0044 0.0053 0.0065 0.0091 0.0107 0.0038 0 O 5 9 4 44%
<br />. .
<br />001 .
<br />0002
<br />0 0001
<br />0 0001
<br />0 <0
<br />002 <0.002 <0.002 <0.000 3 0.0001 0.002 O.G 0.0002
<br />0.0004 0.0 . . . . n/a Na Na Na 0 0 n/a
<br /> Na Na Na Na 0 0 #DIV/0!
<br />-) 0
<br />2 0
<br />2 0.2 0.2 1 0 0%
<br /> 0.2 .
<br />0 .
<br />0
<br />0
<br />0
<br />1
<br />0
<br />0%
<br /> 0
<br />5 0
<br />0
<br />5 4
<br />0 1 <0. 2 0.2 1.3 0.69 0.5 7 1 14%
<br />,) 1.3 1 . .
<br />0 .
<br />0 <0. 2 0 0.2 0.01429 0 7 1 14%
<br />i/L 0 0 0 0 nla Na nla Na 0 0 Na
<br />L)
<br />4
<br />7
<br />5.7 4.7 50 17.8 7.85 4 0 0%
<br />-) 10 50 . 3
<br />5 <5. 33 11.8 5.85 4 1 25%
<br />8.4 33 <5. .
<br />NOTES: Mean and median statistic calculated using one-half detection limit (12 D.L.)
<br />ND = number of non-detects
<br />Results are in mglL unless otherwise noted
<br />Page 7 of 25
<br />WhetsM~Assoc/ates•
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