Table 3. Median trace-element concentrations at sampling sites in the Wichita River Basin
[TNRCC, Texas Natural Resource Conservation Commission; USGS, U.S. Geological Survey; µg/L, micrograms per liter; <, less than; --, not applicable]
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| Sampling site no. (fig. 1, table 1) |
Station ID |
Median concentration |
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| TNRCC | USGS |
Total arsenic (µg/L) |
Total cadmium (µg/L) |
Total chromium (µg/L) |
Total copper (µg/L) |
Total iron (µg/L) |
Total lead (µg/L) |
Total selenium (µg/L) |
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|
8 |
15119 |
07311600 |
|
<1.0 |
<4.0 |
<4.0 |
<4.0 |
130 |
<4.0 |
10.0 |
|
9 |
14900 |
07311630 |
|
<1.0 |
<2.0 |
<4.0 |
<2.0 |
80 |
<4.0 |
12.5 |
|
10 |
-- |
07311700 |
2.0 |
<2.0 |
<4.0 |
<4.0 |
795 |
<2.0 |
6.0 |
|
|
11 |
13636 |
07311782 |
|
<1.0 |
<5.0 |
<10.0 |
<10.0 |
105 |
<10.0 |
1.0 |
|
12 |
-- |
07311783 |
|
2.0 |
<10.0 |
<10.0 |
<10.0 |
170 |
<10.0 |
<1.0 |
|
13 |
-- |
07311790 |
|
1.0 |
<1.0 |
<4.0 |
<2.0 |
160 |
<2.0 |
1.0 |
|
14 |
10185 |
07311800 |
|
4.0 |
<2.0 |
<4.0 |
2.0 |
565 |
<2.0 |
1.0 |
|
15 |
-- |
07311900 |
|
4.0 |
<2.0 |
2.0 |
2.0 |
840 |
<2.0 |
2.0 |
|
16 |
10158 |
07312100 |
2.5 |
<1.0 |
<1.0 |
1.0 |
90 |
<1.0 |
<1.0 |
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