Research Article
Trace Element Concentration and Speciation in Selected Mining-Contaminated Soils and Water in Willow Creek Floodplain, Colorado
Table 1
Selected chemical properties of study waters.
| | Water site | Soil survey no. | EC | pH | Ca | Mg | Na | K | CO3 | HCO3 | F | Cl | PO4 | Br | OAc | SO4 | NO2 | NO3 | | | (dS/m) | | mmol(+)/L | mmol(−)/L |
| | Gravelbar water | S05CO-079-001A | 0.16 | 6.6 | 0.9 | 0.1 | —a | trb | — | 0.4 | — | tr | — | — | — | 1.0 | — | — | | Gravelbar water | S05CO-079-001B | 0.17 | 6.6 | 0.8 | 0.1 | — | tr | — | 0.4 | — | tr | — | — | — | 1.0 | — | tr | | Gravelbar water | S05CO-079-001C | 0.16 | 6.9 | 0.8 | 0.1 | — | tr | — | 0.4 | — | tr | — | — | — | 1.0 | — | — | | Cottonwood water | S05CO-079-002A | 0.22 | 6.6 | 0.7 | 0.1 | — | 0.1 | — | 0.2 | tr | 0.1 | — | — | — | 1.6 | — | tr | | Cottonwood water | S05CO-079-002B | 0.22 | 6.5 | 0.7 | 0.1 | — | 0.1 | — | 0.2 | tr | 0.1 | — | — | — | 1.7 | — | tr | | Cottonwood water | S05CO-079-002C | 0.20 | 6.6 | 0.7 | 0.1 | — | 0.1 | — | 0.2 | tr | 0.1 | — | — | — | 1.4 | — | tr | | Creek water | S05CO-079-003A-1 | 0.14 | 7.1 | 0.7 | 0.1 | — | tr | — | 0.4 | — | tr | — | — | — | 0.9 | — | — | | Creek water | S05CO-079-003A-2 | 0.14 | 7.2 | 0.7 | 0.1 | — | tr | — | 0.3 | — | tr | — | — | — | 0.9 | — | — | | Creek water | S05CO-079-003A-3 | 0.15 | 7.3 | 0.7 | 0.1 | — | — | — | 0.3 | — | tr | — | — | — | 0.9 | — | — | | Creek water | S05CO-079-003B-1 | 0.14 | 7.3 | 0.7 | 0.1 | — | — | — | 0.3 | — | tr | — | — | — | 0.9 | — | — | | Creek water | S05CO-079-003B-2 | 0.16 | 6.6 | 0.7 | 0.1 | — | — | — | 0.2 | — | tr | — | — | — | 0.9 | — | — | | Creek water | S05CO-079-003B-3 | 0.15 | 7.1 | 0.7 | 0.1 | — | — | — | 0.4 | — | tr | — | — | — | 0.9 | — | — | | Spruce water | S05CO-079-004A | 0.17 | 7.0 | 1.0 | 0.1 | — | — | — | 0.6 | — | tr | — | — | — | 0.9 | — | — | | Spruce water | S05CO-079-004B | 0.18 | 7.1 | 1.0 | 0.1 | — | — | — | 0.6 | — | tr | — | — | — | 0.9 | — | — | | Spruce water | S05CO-079-004C | 0.18 | 7.0 | 1.0 | 0.1 | — | — | — | 0.7 | — | tr | — | — | — | 1.0 | — | — | | Channel water | S05CO-079-004D-1 | 0.14 | 7.3 | 0.7 | 0.1 | — | — | — | 0.3 | — | tr | — | — | — | 0.9 | — | — | | Channel water | S05CO-079-004D-2 | 0.14 | 7.4 | 0.7 | 0.1 | — | — | — | 0.2 | — | tr | — | — | — | 0.9 | — | — | | Channel water | S05CO-079-004D-3 | 0.14 | 7.5 | 0.7 | 0.1 | — | — | — | 0.3 | — | tr | — | — | — | 0.9 | — | — | | Channel water | S05CO-079-004E-1 | 0.14 | 7.4 | 0.7 | 0.1 | — | — | — | 0.3 | — | tr | — | — | — | 0.9 | — | — | | Channel water | S05CO-079-004E-2 | 0.14 | 7.4 | 0.7 | 0.1 | — | — | — | 0.3 | — | tr | — | — | — | 0.9 | — | — | | Channel water | S05CO-079-004E-3 | 0.14 | 7.4 | 0.6 | 0.1 | — | — | — | 0.3 | — | tr | — | — | — | 0.9 | — | — | | Channel water | S05CO-079-004F-1 | 0.14 | 7.4 | 0.7 | 0.1 | — | — | — | 0.4 | — | — | — | — | 0.7 | — | tr | — | | Channel water | S05CO-079-004F-2 | 0.14 | 7.4 | 0.7 | 0.1 | — | — | — | 0.3 | — | tr | — | — | — | 0.9 | — | — | | Channel water | S05CO-079-004F-3 | 0.14 | 7.4 | 0.7 | 0.1 | — | — | — | 0.4 | — | tr | — | — | — | 0.9 | — | — | | Westfork water | S05CO-079-013 | 0.11 | 7.3 | 0.6 | 0.1 | — | — | — | 0.6 | — | tr | — | — | — | 0.3 | — | — | | Eastfork water | S05CO-079-014 | 0.06 | 7.5 | 0.2 | tr | — | tr | — | 0.4 | — | tr | — | — | — | 0.1 | — | — |
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a— = concentration below detection limits.
btr = trace.
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