Trace Element Concentration and Speciation in Selected Mining-Contaminated Soils and Water in Willow Creek Floodplain, Colorado

Table 8

Total extractable trace elements (TE) of study soils.

Sample no.	Depth	Ag	As	Ba	Be	Cd	Co	Cu	Cr	Hg	Mn	Mo	Ni	P	Pb	Sb	Se	Sn	Sr	V	W	Zn	SUM^aTE
		mg/kg																					(mg/kg)
Gravelbar	0–73	8.5	98.4	522.8	0.8	15.2	6.5	85.2	4.5	0.10	1805.4	2.5	2.7	454.5	2622.8	7.9	0.37	2.1	39.6	37.6	0.69	2415.0	8133
Cottonwood	0–90	2.0	35.1	289.2	1.2	21.1	5.8	26.6	6.4	0.05	618.0	1.3	3.3	552.8	1154.4	3.2	0.50	1.3	57.8	44.0	0.17	2648.9	5473
Spruce	0–10	11.7	153.7	1138.4	1.3	25.6	7.5	112.7	5.9	0.17	1719.2	4.7	3.3	593.0	3776.6	11.6	0.51	3.3	59.0	45.0	1.03	3316.9	10991
	10–40	10.1	183.7	890.0	0.8	14.7	8.1	93.3	6.6	0.13	2130.0	5.3	3.6	561.5	3251.3	13.2	0.36	3.5	53.0	58.9	1.12	2635.9	9925
Railroad	0–61	30.0	559.6	817.2	0.9	17.0	5.5	125.3	5.5	0.30	1310.6	12.9	2.6	463.7	4977.2	46.2	0.31	5.2	36.8	41.1	2.40	2656.7	11117
	61–120	32.8	368.5	874.8	0.7	8.3	5.5	80.1	5.2	0.28	1528.9	6.6	2.5	476.9	3134.5	31.8	0.31	3.8	40.4	41.9	1.08	1248.4	7893
Western Channel	0–40	10.6	157.0	476.0	0.9	23.9	7.4	98.8	5.2	0.14	2113.0	3.5	2.8	523.1	3702.9	14.0	0.41	8.8	44.4	45.8	1.25	4043.4	11283
Salty	0–20	23.2	168.1	617.4	1.5	86.6	9.7	110.8	8.1	0.27	1675.1	4.3	4.4	695.1	4807.7	14.0	0.63	5.6	92.3	46.1	0.52	10903.0	19274
North	0–40	14.1	172.8	956.9	1.0	24.9	9.0	128.5	4.3	0.20	2786.6	3.3	3.0	448.7	4233.7	15.6	0.40	2.9	49.2	39.2	1.38	3767.0	12663
South	0–40	17.3	167.2	639.6	0.6	13.7	6.6	57.2	5.3	0.18	1324.1	5.0	2.6	509.7	2701.3	13.5	0.37	6.1	50.1	48.4	0.95	2093.9	7664
Denuded Mound	0–40	10.7	82.9	339.3	1.1	25.9	5.4	60.3	5.9	0.16	786.2	3.7	3.2	747.3	8748.5	7.1	0.71	1.6	73.1	40.0	1.46	4371.8	15317
Sedge Mound	0–40	0.9	25.2	343.7	1.4	4.5	6.1	17.2	8.1	0.04	627.4	0.7	4.4	733.0	306.6	1.7	0.69	1.2	100.5	45.8	0.06	589.8	2819

^aSUM_TE = (Ag_TE + As_TE + Ba_TE + Be_TE + Cd_TE + Co_TE + Cu_TE + Cr_TE + Hg_TE + Mn_TE + Mo_TE+ Ni_TE + P_TE + Sb_TE + Se_TE + Sn_TE + Sr_TE+ V_TE + W_TE + Zn_TE)