05587455 DATA: Sediment Tables, 2000

Station list Available data
UPPER MISSISSIPPI RIVER BASIN

05587455 MISSISSIPPI RIVER BELOW GRAFTON, IL

LOCATION.-- Lat 38°57'04", long 90°22'16", 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: Water years 1989-94 and 1998-99. National stream-quality accounting network station 1989 to 1994.

SEDIMENT: March 1989 to current year.

REMARKS.-- Established ambient water-quality monitoring network station Nov. 1992. Discharge for sediment records obtained from Mississippi River at Grafton.

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, 331 mg/L, June 26; minimum daily mean, 46 mg/L, Dec. 10.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 239,000 tons, June 26; mimimum daily, 5,920 tons, Nov. 20.

SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY)
		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	68500	110	20700	48500	71	9370	62500	61	10300
2	61800	103	16900	38100	70	7130	54400	52	7630
3	58800	102	16400	44300	63	7580	58800	56	8970
4	58300	110	17200	45400	56	6900	54700	57	8410
5	58100	99	15600	47700	53	6780	58900	57	9060

6	57500	94	14600	46600	59	7500	58000	57	8970
7	54800	90	13400	46100	63	7870	73500	57	11400
8	56700	90	13700	40400	60	6520	69000	64	11800
9	49000	99	13100	40700	66	7260	58900	62	9810
10	51700	84	11800	42700	70	7980	59500	46	7360

11	57800	76	11800	41400	69	7760	66000	51	9050
12	55600	76	11400	51900	63	8880	65300	53	9340
13	55700	91	13600	41800	62	7000	57900	61	9540
14	56000	81	12200	43300	64	7440	55300	59	8860
15	53300	75	10700	43000	55	6400	50700	52	7100

16	47500	78	10100	48500	59	7700	54000	47	7620
17	44100	81	9620	45200	57	7000	60800	56	9280
18	48400	91	11800	51100	66	9160	57100	56	8650
19	45900	76	9400	45100	63	7760	60100	63	10300
20	48700	78	10300	40700	54	5920	46000	67	8270

21	47100	84	10600	50500	54	7400	43500	67	7880
22	40000	79	8490	51400	54	7430	42000	62	7060
23	46500	83	10400	40200	56	6100	43700	68	8110
24	44400	82	9860	52100	56	7880	48300	91	11900
25	47400	74	9500	53100	53	7530	45400	96	11700

26	48200	76	9850	46700	51	6460	41500	72	8080
27	50900	74	10200	55900	51	7630	45200	76	9300
28	44200	79	9510	55300	53	7940	42300	81	9320
29	48400	77	10000	58800	58	9150	45600	77	9490
30	51500	76	10600	55900	61	9270	52000	78	11000

31	45900	73	9010	---	---	---	52700	82	11700


	JANUARY			FEBRUARY			MARCH

1	54900	77	11500	37300	77	7720	108000	176	51600
2	59500	74	11800	36900	74	7410	99500	152	40900
3	53700	71	10300	38200	81	8210	107000	162	47000
4	45100	74	9000	30500	118	9760	112000	171	51600
5	49300	79	10600	36400	104	10200	113000	138	42300

6	54300	76	11200	42800	96	11200	114000	141	43200
7	40400	72	7760	40000	97	10500	111000	132	39600
8	44500	80	9650	42600	70	8070	107000	143	41300
9	46100	77	9590	37100	69	6940	101000	151	41300
10	43800	72	8480	35800	76	7360	99100	157	42100

11	39700	74	7910	32700	100	8800	103000	145	40300
12	51800	73	10200	41400	108	12100	102000	137	38000
13	48800	85	11200	37900	80	8130	96400	130	33600
14	47700	116	15000	38300	78	8110	93000	123	30900
15	45400	91	11200	39000	88	9330	85700	122	28200

16	36400	75	7400	36700	96	9520	88500	138	33000
17	42500	64	7420	46200	95	11900	92700	149	37200
18	37800	71	7230	43700	100	11600	92800	144	36100
19	36700	77	7600	40300	105	11400	83200	142	31800
20	34100	77	7080	40600	77	8400	77800	140	29400

21	37000	74	7410	38700	79	8230	74700	126	25400
22	39300	82	8490	34900	86	8080	77500	120	25000
23	31900	101	8720	39500	85	9090	77200	107	22300
24	32900	96	8490	41900	87	9750	67600	79	14300
25	31200	90	7550	46300	92	11600	64300	93	16100

26	35100	79	7440	74200	101	20600	60700	114	18800
27	42100	68	7720	104000	162	46000	65500	113	20200
28	44000	69	8250	113000	196	60000	53500	80	11700
29	45400	71	8700	113000	199	60800	63600	109	18700
30	39100	73	7700	---	---	---	67100	131	23700

31	39600	75	7990	---	---	---	64700	103	18000


	APRIL			MAY			JUNE

1	69400	88	16500	108000	215	62600	103000	167	46600
2	61100	105	17300	99500	222	59700	120000	191	62500
3	62400	107	18000	101000	185	50400	139000	214	80200
4	53000	106	15100	94200	146	37000	135000	256	93400
5	63400	103	17600	86500	154	35700	150000	244	99100

6	61600	91	15200	85300	152	35000	166000	259	116000
7	60700	112	18400	89300	150	36100	171000	275	127000
8	52200	114	16000	77000	164	34100	173000	288	135000
9	54900	96	14400	73700	120	23900	179000	293	142000
10	54900	80	12100	74600	130	26200	184000	294	146000

11	56800	103	15800	80000	150	32400	189000	284	145000
12	56400	92	14100	79600	155	33400	200000	320	172000
13	64000	117	20200	75100	143	29000	206000	286	159000
14	56600	121	18400	77600	122	25600	208000	246	138000
15	51500	120	16600	81000	137	29800	214000	241	139000

16	50100	128	17400	79700	150	32400	216000	243	142000
17	50300	131	17900	79900	146	31500	220000	246	147000
18	56100	117	17700	83800	131	29600	226000	278	170000
19	63300	123	21300	77300	121	25200	231000	254	158000
20	47700	140	17800	74100	121	24200	234000	265	168000

21	67800	138	25600	92100	146	36600	245000	282	187000
22	103000	156	44000	99000	156	41900	244000	264	174000
23	121000	188	61300	106000	192	54800	237000	257	164000
24	106000	184	52200	107000	179	51600	249000	274	184000
25	103000	225	62500	110000	174	51900	260000	273	191000

26	106000	197	56100	109000	191	56400	267000	331	239000
27	105000	202	57000	120000	217	71100	281000	296	224000
28	106000	197	56600	124000	316	106000	289000	225	176000
29	106000	209	60100	116000	215	67200	291000	264	207000
30	113000	192	58300	113000	166	50500	281000	242	183000

31	---	---	---	111000	152	45500	---	---	---


	JULY			AUGUST			SEPTEMBER

1	266000	245	176000	80000	93	20100	64100	65	11200
2	252000	232	158000	76800	104	21500	59600	75	12000
3	244000	230	152000	86400	135	31500	56800	67	10300
4	236000	229	146000	89600	144	34800	57000	69	10600
5	231000	219	136000	83700	167	37700	50200	75	10200

6	228000	203	125000	65300	118	20800	53500	67	9750
7	229000	260	161000	65900	96	17100	53800	66	9550
8	228000	273	168000	79600	85	18100	49500	62	8320
9	224000	272	164000	79200	116	24800	53200	66	9460
10	209000	306	173000	77400	116	24200	55900	62	9440

11	174000	226	106000	77100	106	22100	58700	69	10900
12	170000	241	110000	70700	88	16900	51000	69	9620
13	171000	238	110000	71200	78	15000	53800	72	10500
14	173000	229	107000	52500	70	9890	62200	72	12000
15	186000	232	116000	50700	71	9730	65400	96	17100

16	194000	191	100000	57100	77	12200	68000	96	17700
17	203000	186	102000	61600	112	18500	71000	75	14400
18	208000	229	129000	64800	111	19500	78800	71	15100
19	217000	227	133000	64600	90	15700	74300	86	17200
20	214000	214	124000	70800	79	15100	64300	83	14500

21	208000	223	125000	67100	84	15100	66800	76	13700
22	204000	204	113000	65400	77	13700	72400	89	17300
23	201000	184	99800	69300	74	13800	58600	102	16000
24	190000	195	100000	79200	86	18500	54600	118	17400
25	151000	180	73500	86200	88	20600	61000	103	17000

26	121000	133	43500	75800	80	16300	72800	95	18800
27	98000	123	32300	63300	73	12500	77000	90	18600
28	97200	129	33900	59800	65	10400	60500	88	14500
29	89400	141	33900	52100	70	9810	60000	96	15500
30	71800	124	24100	48800	72	9480	58900	98	16200

31	82100	102	22600	58600	64	10200	---	---	---