Samples of streambed materials were collected and analyzed for particle-size composition at six stations. Six transects were sampled at each station. Along each transect, three or five subsamples were collected and composited. The samples were sent to the USGS Iowa District Sediment Laboratory for wet-sieve, three-point pipet, and dry-sieve analyses.

[MM, millimeters; BED MAT, Bed-material; DIAM, Diameter; DW, Dry Weight]

TRAN- SECT NUMBER	TIME	BED MAT. FALL DIAM. DW %  FINER THAN .002 MM (80294)	BED MAT. FALL DIAM. %  FINER THAN .004 MM (80157)	BED MAT. FALL DIAM. DW %  FINER THAN .016 MM (80282)	BED MAT. SIEVE DIAM. %  FINER THAN .062 MM (80164)	BED MAT. SIEVE DIAM. %  FINER THAN .125 MM (80165)	BED MAT. SIEVE DIAM. %  FINER THAN .250 MM (80166)	BED MAT. SIEVE DIAM. %  FINER THAN .500 MM (80167)	BED MAT. SIEVE DIAM. %  FINER THAN 1.00 MM (80168)	BED MAT. SIEVE DIAM. %  FINER THAN 2.00 MM (80169)	BED MAT. SIEVE DIAM. %  FINER THAN 4.00 MM (80170)	BED MAT. SIEVE DIAM. %  FINER THAN 8.00 MM (80171)	BED MAT. SIEVE DIAM. %  FINER THAN 16.0 MM (80172)	BED MAT. SIEVE DIAM. %  FINER THAN 32.0 MM (80173)
		05567000 PANTHER CREEK NEAR EL PASO, ILL. (10-20-97)
1	0940	4	5	7	12	14	22	30	35	42	57	78	100	-
2	0950	5	6	8	16	19	30	50	57	60	63	68	70	100
3	1000	2	3	4	8	9	12	34	56	72	81	88	100	-
4	1040	1	1	1	3	4	7	25	38	46	53	65	78	100
5	1120	1	1	2	4	4	7	19	27	37	50	62	76	100
6	1150	2	2	2	4	5	9	27	39	52	67	85	90	100
		05568000 MACKINAW RIVER NEAR GREEN VALLEY, ILL. (10-22-97)
1	0840	1	1	2	4	5	9	43	68	84	92	97	100	-
2	0900	2	2	3	6	72	72	72	72	72	84	100	-	-
3	0910	1	1	2	3	4	11	53	74	85	93	97	100	-
4	0930	1	1	2	4	6	12	44	58	64	68	71	77	100
5	0950	0	0	0	1	1	13	66	87	95	99	100	-	-
6	1010	0	0	1	1	2	7	27	42	56	65	74	87	100
		05568800 INDIAN CREEK NEAR WYOMING, ILL. (10-20-97)
1	1420	1	1	2	3	3	8	33	50	61	74	94	100	-
2	1450	4	4	6	12	13	20	42	50	54	61	74	92	100
3	1510	4	4	7	12	13	17	31	48	56	66	78	80	100
4	1520	1	1	2	3	4	7	30	50	63	78	93	100	-
5	1530	1	1	1	3	3	6	37	61	73	82	93	100	-
6	1550	4	4	6	11	12	20	56	77	88	97	100	-	-
		05572000 SANGAMON RIVER AT MONTICELLO, ILL. (10-22-97)
1	1250	4	4	6	8	10	18	74	94	98	99	100	-	-
2	1310	6	7	11	17	19	23	41	57	68	72	76	100	-
3	1330	3	3	4	7	9	14	50	78	92	98	100	-	-
4	1350	2	2	3	4	5	11	55	78	89	94	99	100	-
5	1410	1	1	2	3	3	8	51	71	81	93	100	-	-
6	1430	1	1	2	2	3	5	24	41	58	76	90	100	-
		05583000 SANGAMON RIVER NEAR OAKFORD, ILL. (10-21-97)
1	1410	0	0	1	1	1	3	16	30	50	79	96	100	-
2	1430	0	0	1	2	2	7	51	76	89	97	100	-	-
3	1450	0	0	0	0	1	2	39	74	87	94	99	100	-
4	1510	0	0	0	1	2	4	39	74	90	98	100	-	-
5	1530	0	0	0	1	1	5	50	81	93	99	100	-	-
6	1550	0	0	0	1	1	2	35	70	89	98	100	-	-
		05584500 LA MOINE RIVER AT COLMAR, ILL. (10-21-97)
1	0850	21	23	38	78	100	-	-	-	-	-	-	-	-
2	0900	6	6	10	20	88	88	88	88	88	93	100	-	-
3	0910	13	15	23	52	100	-	-	-	-	-	-	-	-
4	0930	23	27	45	83	98	98	98	98	98	100	-	-	-
5	1000	2	3	4	6	88	88	88	88	88	94	99	100	-
6	1030	15	17	27	49	96	96	96	96	96	100	-	-	-

Introduction

Surface-Water Data

Ground-water Data

Precipitation Data

Biological Data