U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2004-5090

Vertical Distribution of Trace-Element Concentrations and Occurrence of Metallurgical Slag Particles in Accumulated Bed Sediments of Lake Roosevelt, Washington, September 2002

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Table 7. Vertical distribution of concentrations of selected trace elements and major ions in pore water, bulk sediment, and residual sediment from shallow cores from sites CCR-668, CCR-692, and CCR-705, Lake Roosevelt, Washington, July 2003.

[Bulk and Residual Sediment Analysis: Replicate analysis of bulk sediment. Residual Sediment: Concentrations of residual sediment following 30 minute leach with 0.25 Molar hydroxylamine hydrochloride. Residual Percent: Residual as percentage of unleached bulk-sediment concentration. Abbreviations: cm, centimeter; mg/L, milligram per liter; <, less than; -, no data]

Sediment core sampling site	Depth interval (cm)	Aluminum	Antimony	Arsenic	Barium	Beryllium	Bismuth	Cadmium	Calcium(mg/L)	Cerium	Cesium
Pore Water Analysis (microgram per liter unless otherwise noted)
CCR-668	0-1	70	0.85	15	96	<0.05	<0.2	0.08	22	0.23	0.13
	1-2	63	.67	24	91	<.05	<.2	.04	22	.24	.15
	9-11	50	1.0	20	140	<.05	<.2	.03	31	.19	.23
	9-11	28	.68	24	140	<.05	<.2	.03	30	.15	.20
	18-20	18	.50	11	190	<.05	<.2	<.02	44	.08	.22
CCR-692	0-1	150	.61	26	87	<.05	<.2	.26	31	.59	.15
	1-2	60	1.1	16	110	<.05	<.2	.08	33	.21	.16
	9-11	45	2.0	15	180	<.05	<.2	.06	38	.20	.15
CCR-705	0-1	58	1.2	4.1	64	<.05	<.2	.68	19	.23	.06
	1-2	100	1.0	6.0	68	<.05	<.2	.25	19	.44	.06
	9-11	43	1.4	18	80	<.05	<.2	.07	20	.17	.04
Bulk Sediment Analysis (milligram per kilogram)
CCR-668	1-2	76,000	3.9	7.2	1,100	2.6	0.53	2.5	15,000	87	5.2
	9-11	75,000	6.2	9.2	1,100	2.3	.54	4.1	16,000	87	4.8
CCR-692	1-2	70,000	4.2	5.2	1,200	2.5	.46	3.0	21,000	83	4.1
	9-11	66,000	7.2	7.7	1,500	2.2	.46	4.6	36,000	72	4.1
CCR-705	1-2	76,000	5.3	7	1,200	2.5	.61	5.0	17,000	88	4.9
	9-11	74,000	7.2	10	1,300	2.6	.64	9.2	20,000	92	4.5
Bulk and Residual Sediment Analysis (milligram per kilogram)
CCR-668
Bulk sediment	1-2	74,000	3.8	9.0	1,100	2.6	0.30	2.6	15,000	96	5.1
Residual sediment		67,000	3.6	6.7	902	1.80	.16	.44	10,000	52	4.6
Residual (percent)		91	94	74	83	69	55	17	67	54	90
Bulk sediment	9-11	72,000	6.1	12	1,100	2.5	.32	4.2	16,000	97	4.7
Residual sediment		68,000	5.5	7.4	950	2.0	.15	.64	10,000	52	4.2
Residual (percent)		94	90	64	83	80	47	15	66	53	89
CCR-705
Bulk sediment	1-2	73,000	5.1	8.5	1,200	2.4	.41	5.2	17,000	96	4.8
Residual sediment		64,000	4.4	5.2	940	1.8	.13	.52	9,700	52	4.2
Residual (percent)		89	86	61	80	76	31	10	57	54	87
Bulk sediment	9-11	73,000	7.2	14	1,300	2.7	.44	9.6	20,000	100	4.6
Residual sediment		70,000	6.3	6.5	1,100	2.1	170	1.4	11,000	57	4.1
Residual (percent)		96	88	48	87	78	39	14	58	57	90
Sediment core sampling site	Depth interval (cm)	Chromium	Cobalt	Copper	Gallium	Iron	Lanthanun	Lead	Lithium	Magne-sium	Manganese
Pore Water Analysis (microgram per liter unless otherwise noted)
CCR-668	0-1	<1	1.1	1.6	0.20	180	0.15	1.4	1.6	5.0	6,000
	1-2	<1	.82	1.3	.20	1,300	.16	2.0	1.6	4.8	4,100
	9-11	<1	.70	1.1	.10	1,400	.22	2.0	1.5	6.0	4,300
	9-11	<1	.61	1.0	.10	5,600	.16	1.4	1.8	6.3	4,200
	18-20	<1	.52	1.8	.08	3,400	.08	1.3	1.8	8.6	4,100
CCR-692	0-1	<1	1.0	4.2	.07	3,000	.42	6.5	1.4	9.0	2,100
	1-2	<1	.45	1.9	<.05	160	.16	3.0	1.5	11	750
	9-11	<1	.21	2.1	<.05	990	.17	3.8	1.2	15	260
CCR-705	0-1	<1	.62	3.8	<.05	120	.20	2.9	1.6	5.1	1,200
	1-2	<1	.54	2.7	<.05	250	.44	8.0	1.8	5.2	890
	9-11	<1	.39	1.0	<.05	410	.25	4.6	1.8	5.9	690
Bulk Sediment Analysis (milligram per kilogram)
CCR-668	1-2	83	15	69	18	41,000	51	110	33	14,000	1,100
	9-11	91	15	110	17	40,000	60	210	32	14,000	1,000
CCR-692	1-2	68	20	75	16	37,000	50	130	28	15,000	620
	9-11	73	12	130	15	38,000	47	250	28	21,000	550
CCR-705	1-2	92	14	91	17	42,000	57	230	33	14,000	860
	9-11	110	13	100	17	39,000	74	430	32	16,000	700
Bulk and Residual Sediment Analysis (milligram per kilogram)
CCR-668
Sediment	1-2	81.1	15	69	18	41,000	56	120	34	16,000	1,200
Residual sediment		70.2	8.8	24	16	29,000	30	22	29	12,000	440
Residual (percent)		86.56	59	34	90	71	53	19	86	75	39
Sediment	9-11	88.0	15	110	17	40,000	66	220	33	15,000	1,000
Residual sediment		77.9	8.2	32	16	28,000	31	27	28	12,000	410
Residual (percent)		88.52	56	29	91	71	47	12	85	76	39
CCR-705
Bulk sediment	1-2	88	14	90	17	42,000	63	250	33	16,000	850
Residual sediment		75	7	20	15	26,000	30	22	28	11,000	360
Residual (percent)		85	53	22	86	64	48	9.0	84	68	42
Bulk sediment	9-11	110	13	100	17	40,000	81	460	32	17,000	710
Residual sediment		99	8.0	28	16	28,000	35	41	28	12,000	396
Residual (percent)		92	60	26	94	71	43	8.8	88	69	56
Sediment core sampling site	Depth interval (cm)	Molybdenum	Nickel	Niobium	Phosphorus	Potassium	Rubidium	Scandlum	Sodium	Silver
Pore Water Analysis (micrograms er liter unless otherwise noted)
CCR-668	0-1	3.5	2.5	<0.2	0.1	1.6	5.0	5.9	3.4	<3
	1-2	2.6	2.0	<.2	.1	1.7	5.0	6.6	2.4	<3
	9-11	1.9	2.1	<.2	.02	2.3	6.7	7.5	3.3	<3
	9-11	2.3	2.0	<.2	.04	2.1	6.1	9.4	3.4	<3
	18-20	2.0	2.4	<.2	.01	2.9	7.7	9.0	4.6	<3
CCR-692	0-1	<2.0	3.0	<.2	.2	1.9	4.7	6.8	3.3	<3
	1-2	<2.0	1.8	<.2	.04	2.3	4.8	7.4	3.2	<3
	9-11	<2.0	2.0	<.2	.2	3.2	3.8	8.0	3.5	<3
CCR-705	0-1	<2.0	1.9	<.2	.05	1.1	3.7	4.6	2.2	<3
	1-2	<2.0	1.6	<.2	.07	1.2	3.6	5.1	2.2	<3
	9-11	2.8	1.3	<.2	.09	1.3	2.3	5.7	2.7	<3
Bulk Sediment Analysis (milligram per kilogram)
CCR-668	1-2	1.4	39	30	1,400	23,000	100	13	16,000	1.5
	9-11	2.0	38	30	1,500	23,000	98	13	16,000	2.7
CCR-692	1-2	1.4	30	29	1,600	22,000	88	11	18,000	1.1
	9-11	4.4	30	26	1,500	21,000	85	11	16,000	2.6
CCR-705	1-2	1.4	37	34	1,700	24,000	100	13	16,000	2.0
	9-11	3.8	37	33	1,700	24,000	99	13	17,000	.16
Bulk and Residual Sediment Analysis (milligram per kilogram)
CCR-668
Bulk sediment	1-2	1.7	42	29	1,400	24,000	99	13	17,000	-
Residual sediment		1.3	27	17	400	21,000	94	12	15,000	-
Residual (percent)		78	65	58	28	88	95	94	85	-
Bulk sediment	9-11	2.2	40	29	1,600	24,000	97	12	18,000	-
Residual sediment		1.5	26	16.	340	22,000	93	12	16,000	-
Residual (percent)		68	65	57	22	92	96	97	90	-
CCR-705
Bulk sediment	1-2	1.9	39	32	1,700	24,000	100	12	18,000	-
Residual sediment		1.5	24	17	310	20,000	90	11	15,000	-
Residual (percent)		79	61	52	18	84	90	91	83	-
Bulk sediment	9-11	4.5	39	32	1,800	24,000	99	12	19,000	-
Residual sediment		2.4	25	19	310	23,000	98	12	17,000	-
Residual (percent)		53	64	58	17	94	98	98	90	-
Sediment core sampling site	Depth interval (cm)	Sulfate	Tantalium	Thallium	Thorium	Titanium	Uranium	Vanadium	Yttrium	Zinc
Pore Water Analysis (microgram per liter unless otherwise noted)
CCR-668	0-1	3	<0.02	<0.1	<0.2	1.2	0.33	1.3	0.19	6.6
	1-2	<2	<.02	<.1	<.2	1.0	.26	1.9	.22	3.8
	9-11	<2	<.02	.2	<.2	.50	.35	1.1	.44	26
	9-11	<2	.05	.1	<.2	.90	.30	1.4	.39	3.4
	18-20	<2	.05	<.1	<.2	.80	.33	.60	.26	40
CCR-692	0-1	<2	<.02	<.1	<.2	3.7	.59	1.2	.41	13
	1-2	<2	<.02	<.1	<.2	1.3	.50	1.1	.20	3.7
	9-11	<2	<.02	<.1	<.2	1.4	.54	1.6	.35	4.2
CCR 705	0-1	7	< .02	.1	<.2	1.2	.16	.7	.20	12
	1-2	<2	<.02	.1	<.2	1.7	.17	1.0	.42	10
	9-11	<2	<.02	<.1	<.2	<.50	.22	1.0	.30	4.9
Bulk Sediment Analysis (milligram per kilogram)
CCR-668	1-2	-	1.6	0.97	14	3,600	3.8	100	26	430
	9-11		1.7	1.7	14	3,600	4.0	100	39	540
CCR-692	1-2	-	1.5	.91	12	3,300	3.9	90	25	540
	9-11	-	1.4	1.2	11	3,000	5.3	91	27	960
CCR-705	1-2	-	1.8	1.0	14	3,500	3.9	110	33	650
	9-11	-	1.9	1.4	14	3,500	4.4	110	50	980
Bulk and Residual Sediment Analysis (milligram per kilogram)
CCR-668
Bulk sediment	1-2	-	-	1.0	16	3,900	4.0	100	29	420
Residual sediment		-	-	.72	14	3,700	2.1	88	16	140
Residual (percent)		-	-	70	88	96	53	84	55	32
Bulk sediment	9-11	-	-	1.8	15	3,800	4.3	110	43	520
Residual sediment		-	-	.87	13	3,700	2.2	91	13	150
Residual (percent)		-	-	50	87	96	51	86	31	28
CCR-705
Bulk sediment	1-2	-	-	1.1	15	3,700	4.1	110	37	600
Residual sediment		-	-	.76	14	3,400	2.3	85	11	140
Residual (percent)		-	-	70	89	92	56	81	30	23
Bulk sediment	9-11	-	-	1.5	15	3,900	4.4	110	58	900
Residual sediment		-	-	.84	14	3,800	2.6	96	15	230
Residual (percent)		-	-	57	95	97	57	88	25	26

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