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.--March 1989 to current year. National stream-quality accounting network station 1989 to 1994.

REMARKS.--Established ambient water-quality monitoring network station November 1992. Sediment records fair.

PERIOD OF DAILY RECORD.--
SUSPENDED-SEDIMENT: October 1989 to current year.

EXTREMES FOR PERIOD OF DAILY 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, 811 mg/L, Jan. 9; minimum daily mean, 41 mg/L, Nov. 8.
SUSPENDED-SEDIMENT LOADS: Maximum daily, 433,000 tons, Apr. 2; minimum daily, 5,150 tons, Nov. 15.
SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
MEANMEANMEAN
MEANCONCEN-SEDIMENTMEANCONCEN-SEDIMENTMEANCONCEN-SEDIMENT
DISCHARGETRATIONDISCHARGEDISCHARGETRATIONDISCHARGEDISCHARGETRATIONDISCHARGE
DAY(CFS)(mg/L)(TONS/DAY)(CFS)(mg/L)(TONS/DAY)(CFS)(mg/L)(TONS/DAY)
 
OCTOBERNOVEMBERDECEMBER



145800627640704007915000640007713300
252500618680628006510900637008013800
34800067869058200528200607008113300
44810063813065700488550500007810500
55010064870078800481020043000859750
 
6513006894607070050953049900729790
7486001131490065500529170550006910200
8464001391740065600417230578007712100
9428001351560059400436880605007812700
1041900123140006080057934054600547890
 
1152000124175006390058997055400609050
12504001011380063000589790578006510200
135140083116006020055887057200619370
14414007482205040045622055900669980
154980066883046800415150581007311500
 
1668600721350043900657760587006710600
17732006913700530008311900586008913900
18711007214000504006993206040013221600
19727007614900475007596105470012218100
2071100771480050300699340566009714800
 
2170100721350046200506130658008114500
2273900791590044000546490570008813500
2376000761570042500728180537009613900
247890068145004870011715400597009214800
257400069137004250010512100548008512700
 
26748006212600367001089750535008312000
2765900661180043200708180593007812400
2864000671150048300648360591006911000
2962100611020057200691070052600709770
30692005911000677006712300492008010600
 
31723006212200---------488008911800

 
JANUARYFEBRUARYMARCH



15570090135008430012829200209000555313000
25090087118008530011225800198000381205000
3513008912300828009621400191000309159000
47990099217009330013333500189000293150000
599200110295009550017645200186000271136000
 
6111000144435009520016943400185000271136000
7124000266903009230015538600183000296146000
81560005232260009360015539100186000286145000
91840008114030009220015739300215000496289000
101650007743460009160015137300225000525320000
 
111300005872050009470014437100229000632391000
129830058615500011700030798300229000604373000
136590051791600133000388140000222000502300000
1478200479101000132000358127000211000422240000
156680040372600115000373116000192000350181000
 
16716004138040011100025576300171000285132000
17734004068020011400026080000161000256112000
18795002786010012200026787900205000424238000
19763002144400012300023277000221000613366000
20855001924440012300022775300216000623363000
 
21800001583430012600022174900211000550314000
22773001322750012800019466700207000447250000
23823001423170013200019067700202000424231000
24859001473400014000021179600202000258141000
25842001172670013900022584100208000205115000
 
268700013030500139000275104000216000212124000
278280013931000164000395179000217000401235000
288530010724700202000715391000216000525306000
298160010923900---------216000547319000
308430014232400---------215000505293000
 
318970015237000---------217000480281000

 
APRILMAYJUNE



123000064340000025900020314200016800019086700
223400068443300025300019913600017200018585500
324100051833700025300022115100017000018384000
425600042429300025600023316100016500016673900
527300034725700024900022315000015700015766400
 
628600030223300023300022914400014500014456300
729500031925500022200022513500013600014151900
830000033527200022200026015500013500015155000
930400033027100021900024414500014800019778900
1030600031926400021700020912200014600023793400
 
11308000299249000216000206120000146000307122000
12312000241203000211000213121000182000493244000
13318000158136000208000242136000190000452232000
14329000157140000212000264152000200000434235000
15335000165149000214000277160000219000487289000
 
16346000196183000205000277153000221000502300000
17356000198190000183000291143000229000493306000
18356000194186000163000260114000230000465288000
1934800015614700016500021997800227000478293000
20337000174158000173000231108000230000412256000
 
21324000217190000180000232113000236000363232000
22311000218183000203000231127000233000448281000
23302000239195000219000289170000236000388248000
24294000219174000213000309178000246000264175000
25288000210163000214000295170000252000203138000
 
26281000225171000220000293174000250000218147000
27274000245181000219000333197000249000207140000
28268000282204000209000275155000252000216147000
29264000254181000193000221115000249000232156000
30265000207148000192000206107000251000311211000
 
31---------17600020396000---------

 
JULYAUGUSTSEPTEMBER



1261000368260000105000194548009170010225300
227300034325300098100208550007360010621100
327900026820200095400189487004800011514700
427900022817200092300135338004830015420200
527800024118100094700123314004650013917400
 
6279000242182000103000132367004690011314300
728100021616400010900011834700444009110900
828400019114600011300011133900432008910400
9289000210164000119000126404004360012715000
10293000231183000121000121394004740011614800
 
1129400024119100012000013242700443008810500
12290000233182000118000143457004330010211900
13284000213163000114000141435003930017218300
14276000212158000104000116326004730020225900
15267000215155000104000107300005030019826900
 
16255000225155000102000117321006620020937400
1724200027117600085900113262007080018335000
1822700031819400079800120258005950014823800
1921600029817400096400145377004720012015200
2020700023713200099100103275004280010712300
 
211920002521310007260095187004090013714900
221730001818420064200102177004250014917200
23156000171721005430099146003880014915600
241610001747530058700110176004180013014700
251610001667190065800127225004110014716300
 
26160000207895006640097174004080014616100
271400002951110005920085136004010015016300
28118000296936006420092160003860018319100
291090002978770079600103220004230014516700
301160002658320093100118298004070010411600
 
31114000224689009690010226700---------


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data