07020500 DATA: Sediment Tables, 2000

Station list Available data
LOWER MISSISSIPPI RIVER BASIN

07020500 MISSISSIPPI RIVER AT CHESTER, IL

LOCATION.-- Lat 37°54'10", long 89°50'10", in SW 1/4 sec.24, T.7 S., R.7 W., third principal meridian, Randolph County, Hydrologic Unit 07140105, on downstream side of left pier of main truss of highway bridge at Chester, 8.1 mi downstream from Kaskaskia River, and at mile 109.9 above Ohio River.

DRAINAGE AREA.-- 708,600 mi², approximately.

PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE

DISCHARGE: October 1927 to current year in reports of the U.S. Geological Survey. Monthly discharge only for some periods, published in WSP 1311. Since August 1873, results of discharge measurements in reports of the Mississippi River Commission.

STAGE: July 1942 to current year in reports of the U.S. Geological Survey. Since May 1891, in reports of the Mississippi River Commission and National Weather Service.

SURFACE-WATER QUALITY

SEDIMENT: August 1980 to current year.

REVISED RECORDS.-- WDR MO-76-1: Drainage area. WDR MO-98-1: Extreme outside period of record.

GAGE.-- Water-stage recorder and U.S. Army Corps of Engineers satellite telemeter. Datum of gage is 341.05 ft above sea level. Prior to Feb. 1, 1962, nonrecording gage 0.4 mi downstream at present datum.

REMARKS.-- Natural flow of stream affected by many reservoirs and navigation dams in upper Mississippi River Basin and by many reservoirs and diversions for irrigation in Missouri River Basin.

EXTREMES FOR PERIOD OF RECORD.--
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 3,380 mg/L, Apr. 13, 1987; minimum daily mean, 13 mg/L, Mar. 18, 1981.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 3,330,000 tons, Feb. 25, 1997; minimum daily, 3,580 tons, Mar. 18, 1981.

EXTREMES OUTSIDE PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Flood of June 30, 1844, reached a gage height of 39.8 ft, discharge, 1,050,000 ft³/s, computed by the U.S. Army Corps of Engineers.

EXTREMES FOR CURRENT YEAR.--
SUSPENDED-SEDIMENT CONCENTRATIONS: Maximum daily mean, 839 mg/L, June 29; minimum daily mean, 91 mg/L, Jan. 24.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 954,000 tons, June 29; minimum daily, 17,700 tons, Jan. 27.

SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
		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	143000	148	60700	107000	125	36100	117000	151	47500
2	156000	149	62700	106000	114	32600	114000	140	43200
3	150000	156	62900	107000	124	35400	113000	122	37400
4	137000	163	60300	100000	135	36600	110000	118	35200
5	133000	151	54500	102000	131	36000	113000	120	36400

6	128000	149	51600	105000	153	43300	118000	130	41300
7	126000	133	45200	108000	200	58500	123000	142	47300
8	122000	134	44000	107000	190	55000	129000	151	52600
9	125000	135	45600	104000	152	42500	134000	138	50100
10	120000	132	43000	101000	138	37800	129000	126	43900

11	117000	128	40400	104000	161	45100	130000	128	45000
12	118000	117	37300	104000	167	47000	127000	133	45300
13	118000	124	39600	109000	167	49100	130000	140	49200
14	119000	117	37700	110000	157	46600	136000	158	57900
15	116000	106	33200	107000	148	42500	126000	167	56800

16	115000	107	33300	103000	144	40300	119000	172	55200
17	110000	113	33600	105000	142	40300	118000	158	50000
18	109000	119	35000	104000	140	39200	118000	126	40100
19	104000	126	35400	103000	137	38000	114000	123	37800
20	105000	131	37200	107000	130	37700	104000	---	34200

21	104000	109	30600	100000	128	34600	99800	---	32000
22	104000	106	29700	93900	127	32200	86500	---	25900
23	103000	113	31700	96300	126	32800	76600	---	21200
24	104000	122	34200	99500	126	33900	74300	---	19100
25	102000	131	36000	108000	137	39900	74600	---	19100

26	104000	136	38200	114000	146	45000	78800	---	24300
27	106000	126	35900	111000	132	39600	82100	157	34900
28	107000	125	36200	114000	123	38000	78500	162	34300
29	106000	131	37500	117000	139	44000	76800	154	31800
30	103000	135	37700	122000	147	48300	77500	150	31500

31	104000	119	33300	---	---	---	78000	149	31300


	JANUARY			FEBRUARY			MARCH

1	82400	147	32700	86200	---	31500	180000	262	127000
2	88600	148	35500	81400	133	29300	178000	242	116000
3	98700	166	44400	78900	114	24200	167000	220	99200
4	104000	181	51000	85700	120	27900	172000	205	95700
5	104000	153	43100	88900	129	31000	180000	211	103000

6	95300	128	33000	85000	128	29400	181000	219	107000
7	94600	140	35800	85600	124	28700	176000	205	97500
8	93600	138	35000	87700	97	23000	167000	189	85300
9	87800	125	29700	83500	105	23800	161000	176	76500
10	94000	149	38000	80100	111	24000	157000	166	70300

11	99200	197	52900	77600	114	24000	151000	156	63800
12	97700	156	41200	78000	113	23900	150000	148	60000
13	93800	146	37100	78500	112	23700	151000	140	57300
14	99000	146	39000	81500	111	24400	146000	144	56400
15	97300	141	37000	81700	115	25400	136000	150	55000

16	95900	135	35100	79300	109	23300	127000	150	51200
17	88400	130	31000	81000	103	22500	126000	147	50100
18	84000	124	28200	86100	156	37000	131000	145	51300
19	85500	116	26900	108000	289	85300	133000	144	51700
20	84900	118	26900	120000	373	121000	138000	144	53900

21	90200	118	28800	125000	363	123000	148000	145	57900
22	87000	109	25500	116000	278	87500	146000	128	50100
23	83500	99	22300	105000	226	64000	140000	135	51100
24	81500	91	20000	96000	245	63500	143000	133	51300
25	80000	---	19100	95900	203	52600	143000	126	48600

26	78600	---	18400	98800	166	44500	137000	120	44300
27	74300	---	17700	122000	174	57800	134000	114	41400
28	82200	---	24400	152000	197	81300	134000	116	41800
29	91000	---	31900	174000	256	121000	122000	125	41300
30	91300	---	32600	---	---	---	122000	125	41100

31	88600	---	32000	---	---	---	132000	126	44900


	APRIL			MAY			JUNE

1	141000	128	48900	166000	152	68100	201000	280	152000
2	143000	125	48300	164000	157	69700	183000	278	137000
3	136000	121	44200	152000	144	59100	192000	264	137000
4	130000	117	41000	149000	127	51200	205000	242	134000
5	124000	123	41000	143000	131	50500	204000	244	134000

6	116000	131	41200	133000	135	48600	212000	255	146000
7	120000	130	42400	134000	162	60000	221000	289	172000
8	120000	128	41200	186000	476	248000	222000	321	192000
9	120000	125	40500	213000	755	434000	222000	342	205000
10	117000	122	38600	174000	620	292000	225000	356	217000

11	110000	120	35700	137000	321	120000	228000	369	227000
12	109000	118	34800	125000	267	89700	233000	382	240000
13	108000	117	34300	130000	229	80400	239000	395	255000
14	110000	116	34400	132000	194	68900	239000	409	264000
15	108000	112	32700	127000	164	56200	238000	416	267000

16	102000	106	29100	128000	141	48900	243000	397	261000
17	99600	---	27100	126000	138	47000	287000	544	425000
18	103000	---	27900	127000	142	48500	306000	651	538000
19	104000	---	28000	127000	146	49900	309000	466	389000
20	100000	---	27600	126000	148	50400	304000	496	407000

21	111000	---	34400	125000	149	50500	307000	524	435000
22	122000	---	43500	136000	145	53300	321000	514	446000
23	150000	---	64000	152000	163	66900	328000	552	489000
24	179000	---	90900	164000	177	78300	347000	556	522000
25	177000	---	87300	168000	172	78000	386000	724	756000

26	169000	---	74500	173000	174	81300	390000	809	852000
27	167000	---	73200	182000	200	98800	389000	641	673000
28	161000	163	70800	215000	280	164000	402000	770	838000
29	162000	140	61300	251000	371	252000	421000	839	954000
30	163000	140	61600	239000	372	239000	424000	755	865000

31	---	---	---	219000	329	194000	---	---	---


	JULY			AUGUST			SEPTEMBER

1	417000	745	838000	153000	170	70500	105000	118	33400
2	399000	728	782000	151000	147	60000	110000	107	32000
3	377000	754	766000	143000	136	52800	112000	102	30800
4	355000	666	639000	145000	132	51500	109000	101	29700
5	334000	564	509000	143000	121	46700	105000	103	29200

6	319000	527	453000	139000	115	43000	94200	107	27200
7	303000	458	374000	131000	116	41000	86800	102	23800
8	299000	421	340000	130000	151	53200	88200	99	23500
9	300000	403	326000	147000	156	62000	83300	95	21400
10	296000	366	293000	166000	163	73500	85600	108	25100

11	280000	376	283000	173000	163	76200	91800	100	24800
12	262000	376	266000	162000	158	69300	98000	106	28000
13	263000	375	266000	145000	143	56100	98000	118	31300
14	263000	346	246000	135000	126	45900	96600	119	31000
15	258000	360	251000	116000	127	39700	107000	103	29800

16	256000	349	241000	104000	122	34200	111000	118	35600
17	256000	336	232000	105000	109	31000	114000	123	37900
18	255000	326	224000	115000	119	37200	113000	113	34400
19	265000	335	240000	125000	136	46200	119000	115	37000
20	283000	404	309000	127000	127	43600	118000	109	34800

21	284000	394	302000	127000	116	39800	113000	111	33700
22	277000	315	236000	123000	114	37800	107000	114	32900
23	267000	290	209000	122000	106	34900	106000	143	41000
24	254000	281	192000	124000	121	40600	104000	122	34100
25	236000	236	150000	136000	122	44900	97600	99	26200

26	211000	228	130000	161000	165	72300	106000	110	31800
27	192000	182	94500	174000	198	92900	120000	104	33700
28	172000	148	68300	156000	194	81300	124000	111	37400
29	170000	167	76700	132000	148	52700	116000	117	36300
30	169000	172	78200	119000	127	40700	109000	102	33000

31	153000	168	69300	110000	123	36400	---	---	---