05587455 DATA: Sediment Tables, 2002

Station list Available data
UPPER MISSISSIPPI RIVER BASIN

05587455 MISSISSIPPI RIVER BELOW GRAFTON, IL


LOCATION.-- Lat 38°57'04", long 90°22'16" (NAD of 1927), in sec.24, T.6 N., R.11 W., Jersey County, Hydrologic Unit 07110009, 11.3 mi above Lock and Dam 26, 19.0 mi above mouth of Missouri River, and at mile 214.6 upstream from the mouth of the Ohio River.

DRAINAGE AREA.-- 171,300 mi², approximately.

PERIOD OF RECORD.--
SURFACE-WATER QUALITY
	CHEMICAL: March 1989 to current year.
	SEDIMENT: October 1989 to current year.

REMARKS.-- Ambient water-quality monitoring network station Nov. 1992 to current year. National Stream-Quality Accounting Network station September 1989 to October 1992. Discharge for sediment records obtained from Mississippi River at Grafton (05587450).

EXTREMES FOR PERIOD OF RECORD.--
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 1,910 mg/L, May 23, 1990; minimum daily mean, 1 mg/L, Sept. 10, 1991.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 1,090,000 tons, May 23, 1990; minimum daily, 186 tons, Sept. 10, 1991.

EXTREMES FOR CURRENT YEAR.--
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 737 mg/L, May 7; minimum daily mean, 40 mg/L, Sept. 30.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 599,000 tons, May 8; minimum daily, 5,050 tons, Jan. 22.

REMARKS FOR CURRENT YEAR.--Sediment records fair.

SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 2001 TO SEPTEMBER 2002
		MEAN			MEAN			MEAN
	MEAN	CONCEN-	SEDIMENT	MEAN	CONCEN-	SEDIMENT	MEAN	CONCEN-	SEDIMENT
	DISCHARGE	TRATION	DISCHARGE	DISCHARGE	TRATION	DISCHARGE	DISCHARGE	TRATION	DISCHARGE
DAY	(cfs)	(mg/L)	(tons/day)	(cfs)	(mg/L)	(tons/day)	(cfs)	(mg/L)	(tons/day)

	OCTOBER			NOVEMBER			DECEMBER

1	56100	96	14400	85900	139	32300	89800	114	27700
2	52700	77	10900	85500	101	23400	90600	99	24200
3	46100	74	9190	89200	101	24300	93400	89	22500
4	44500	71	8540	87600	106	25100	97100	86	22500
5	47900	70	8990	91900	142	35100	95500	86	22300

6	45200	73	8930	91500	113	27900	89600	82	19700
7	51400	68	9460	86900	99	23300	87400	87	20500
8	54700	69	10200	79400	103	22000	84700	79	18000
9	56600	61	9280	84100	86	19500	86000	75	17500
10	51000	59	8180	82100	78	17200	92300	89	22300

11	47200	66	8420	83200	74	16700	98300	99	26400
12	47600	78	9980	82600	81	18000	103000	96	26500
13	56000	93	14000	79400	82	17700	97400	77	20300
14	55900	96	14500	77200	75	15500	99600	91	24400
15	61300	95	15700	76500	64	13300	102000	115	31700

16	61500	101	16800	75900	59	12200	103000	127	35200
17	88300	135	32100	73000	52	10300	111000	144	43200
18	88800	148	35500	74300	66	13200	106000	130	37200
19	85000	154	35500	68800	86	15900	92900	133	33500
20	87900	145	34400	72700	78	15300	92400	127	31700

21	83000	111	25000	74800	70	14100	92600	98	24600
22	80800	100	21900	71800	63	12100	95100	121	31000
23	95000	123	32100	74100	71	14200	90600	133	32700
24	103000	191	53400	80900	85	18600	75100	86	17500
25	108000	224	65200	77700	76	15900	58900	81	12900

26	96100	206	53600	79200	72	15400	61300	81	13400
27	92400	181	45200	74100	69	13900	47900	86	11200
28	102000	154	42500	79600	73	15700	38200	66	6780
29	93400	144	36300	85100	79	18100	34500	56	5210
30	92900	177	44300	91000	87	21400	44900	73	9240

31	94300	170	43200	---	---	---	61700	65	10900


	JANUARY			FEBRUARY			MARCH

1	54300	58	8570	122000	417	138000	106000	129	37000
2	51300	54	7510	110000	278	82700	101000	132	36000
3	55500	50	7510	95900	222	57300	96200	132	34300
4	61800	47	7780	84200	261	59200	94900	132	33900
5	60500	46	7470	85100	258	59400	86700	128	30000

6	52700	47	6710	83600	157	35400	83900	113	25600
7	49100	57	7630	83700	132	29700	91000	111	27300
8	64200	86	15100	86400	146	34200	94000	139	35300
9	66100	93	16600	89800	175	42400	85100	176	40500
10	59900	70	11300	85900	166	38600	111000	181	54500

11	55700	59	8800	88300	163	38900	130000	196	68900
12	59100	50	8010	91600	111	27500	126000	209	70800
13	66900	64	11500	95300	99	25600	121000	292	95400
14	60400	72	11700	98600	135	36000	119000	267	86000
15	55100	73	10900	92600	110	27500	119000	263	84700

16	63200	73	12500	86400	109	25700	126000	223	76200
17	60400	60	9770	86200	93	21600	125000	198	67200
18	58000	59	9230	90700	124	30300	123000	144	47900
19	61400	65	10800	87300	132	31200	127000	150	51300
20	57800	45	6970	80000	102	22000	122000	184	60600

21	50500	46	6310	82500	83	18500	117000	213	67300
22	39500	47	5050	93500	122	30900	111000	191	57000
23	48000	48	6230	99800	179	48200	105000	143	40700
24	47300	49	6260	102000	189	52300	109000	114	33600
25	45400	54	6620	101000	167	45700	115000	140	43600

26	51200	51	6990	92400	137	34100	113000	152	46400
27	52000	51	7210	95300	136	34800	111000	136	40900
28	53600	47	6750	103000	114	31700	109000	144	42500
29	59300	46	7380	---	---	---	109000	177	52300
30	64600	72	12600	---	---	---	105000	155	43900

31	104000	264	80600	---	---	---	99400	148	39800


	APRIL			MAY			JUNE

1	94200	162	41200	293000	311	247000	231000	199	124000
2	94600	168	42800	294000	319	254000	228000	179	110000
3	101000	169	45800	290000	280	219000	231000	185	115000
4	104000	147	41400	282000	231	176000	226000	165	101000
5	105000	159	44800	272000	222	163000	214000	175	101000

6	105000	189	53800	271000	292	214000	220000	196	116000
7	110000	189	56300	292000	737	584000	231000	176	110000
8	112000	164	49400	315000	706	599000	240000	185	119000
9	127000	184	64000	306000	316	261000	244000	225	150000
10	162000	282	124000	291000	286	225000	250000	287	194000

11	180000	358	173000	273000	290	213000	261000	445	315000
12	167000	311	140000	273000	379	280000	279000	524	397000
13	150000	295	119000	310000	324	271000	290000	323	253000
14	151000	294	120000	350000	270	255000	310000	260	218000
15	146000	267	105000	374000	183	185000	315000	185	157000

16	146000	303	120000	372000	185	186000	315000	331	277000
17	153000	291	120000	365000	179	176000	307000	226	187000
18	155000	250	105000	358000	181	174000	290000	179	140000
19	162000	245	107000	349000	227	213000	272000	201	148000
20	173000	245	114000	345000	295	274000	253000	209	143000

21	191000	266	138000	338000	274	250000	237000	201	128000
22	218000	416	245000	328000	269	238000	225000	172	104000
23	224000	321	194000	316000	307	262000	216000	191	111000
24	224000	380	230000	302000	299	244000	208000	178	99800
25	232000	582	365000	292000	243	191000	204000	151	83400

26	241000	534	348000	288000	223	173000	200000	135	72900
27	245000	374	247000	289000	230	179000	189000	148	75600
28	267000	482	348000	290000	236	185000	176000	170	80300
29	283000	413	315000	285000	214	164000	175000	190	89800
30	290000	369	290000	270000	238	173000	182000	208	102000

31	---	---	---	249000	268	181000	---	---	---


	JULY			AUGUST			SEPTEMBER

1	183000	209	103000	94700	110	28300	119000	177	56600
2	182000	191	93800	88600	116	27700	114000	165	50900
3	182000	175	86200	84900	106	24300	109000	140	41200
4	177000	164	78200	84900	107	24600	103000	95	26600
5	172000	133	62100	81000	101	22000	96000	94	24400

6	165000	118	52500	84600	105	24100	85200	94	21600
7	157000	119	50200	86700	110	25900	77800	97	20400
8	146000	112	44000	87200	110	26000	76300	91	18800
9	142000	132	50500	82400	94	20800	74100	79	15900
10	137000	117	43400	85200	89	20500	69300	76	14200

11	137000	120	44300	85200	86	19800	76800	86	17800
12	131000	114	40300	86000	80	18700	77700	86	18000
13	128000	116	40200	90300	82	20000	78200	83	17500
14	121000	102	33400	93200	95	23900	78500	85	18000
15	113000	98	29900	94100	114	29100	78000	79	16600

16	100000	96	26000	92200	112	28000	78800	82	17500
17	96800	89	23200	96400	132	34400	83000	76	17100
18	92500	84	21000	91700	143	35500	79700	71	15300
19	92200	77	19100	96400	140	36300	83100	76	17000
20	96400	86	22500	101000	114	31000	78000	85	17800

21	104000	95	26600	96700	109	28400	72100	87	16800
22	101000	105	28600	96500	112	29300	63500	110	18800
23	103000	92	25500	104000	126	35400	71500	85	16400
24	104000	95	26800	146000	259	103000	68900	62	11600
25	101000	91	24700	168000	329	150000	66500	77	13900

26	96300	89	23200	164000	303	135000	58800	72	11500
27	95600	70	18000	159000	260	111000	51600	53	7440
28	95800	67	17200	146000	244	96300	55000	54	8030
29	92600	64	16200	130000	237	83500	60200	52	8390
30	97500	96	25300	125000	237	80100	59200	40	6350

31	96300	98	25400	123000	197	65200	---	---	---