Station list     Available data
ILLINOIS RIVER BASIN


05568000       MACKINAW RIVER NEAR GREEN VALLEY, IL



LOCATION.--Lat 40°27'15", long 89°36'22", in SE1/4SE1/4 sec.12, T.23 N., R.5 W., Tazewell County, Hydrologic Unit 07130004, on right downstream side of bridge on Towerline Road, 2.5 mi east of State Highway 29, 3.9 mi northeast of Green Valley, 5.8 mi south of Pekin, 10.2 mi north of U.S. Highway 136, and at mile 17.3.

DRAINAGE AREA.--1,073 mi2. Area at site used prior to Oct. 1, 1988, 1,089 mi2.

PERIOD OF RECORD.--Water-quality records, water years 1997 to 1998 (discontinued).
WATER-QUALITY DATA, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DIS- PH
AGENCY AGENCY CHARGE, NUMBER SPE- WATER
COL- ANA- INST. OF CIFIC WHOLE
LECTING LYZING CUBIC SAM- TEMPER- CON- FIELD
SAMPLE SAMPLE GAGE FEET STREAM PLING ATURE DUCT- (STAND-
DATE TIME (CODE (CODE HEIGHT PER WIDTH POINTS WATER ANCE ARD
NUMBER) NUMBER) (FEET) SECOND (FT) (COUNT) (DEG C) (US/CM) UNITS)
(00027) (00028) (00065) (00061) (00004) (00063) (00010) (00095) (00400)
OCT 1997
22... 1750 81700 80020 13.11 47 80.0 10 10.7 716 7.8
NOV
20... 1430 81700 80020 13.32 81 90.0 10 5.2 766 7.9
DEC
18... 1220 81700 80020 13.51 139 90.0 10 2.6 794 8.1
JAN 1998
15... 1440 81700 80020 15.73 1010 100    10 .1 758 8.0
FEB
10... 1120 81700 80020 15.11 709 110    10 4.5 724 8.1
MAR
12... 1530 81700 80020 18.03 2360 220    10 2.3 657 6.8
APR
09... 1610 81700 80020 17.71 2160 200    10 10.3 651 8.2
MAY
06... 1230 81700 80020 22.45 5900 220    10 15.2 459 7.8
JUN
03... 1210 81700 80020 15.58 931 110    10 19.9 700 8.1
09... 1440 81700 80020 15.90 1100 110    10 17.1 685 8.1
16... 1050 81700 80020 22.28 3190 235    9 18.6 421 7.4
JUL
01... 1150 81700 80020 16.11 1210 110    10 24.4 707 7.9
29... 1300 81700 80020 13.87 227 100    10 26.7 717 8.1
AUG
25... 1130 81700 80020 13.42 100 90.0 10 26.3 658 8.1
SEP
24... 1620 81700 80020 13.20 59 90.0 10 17.2 744 7.4
OXYGEN, ALKA- CAR- BICAR-
DIS- MAGNE- POTAS- LINITY BONATE BONATE CHLO-
SOLVED CALCIUM SIUM, SODIUM, SIUM, WAT DIS WATER WATER RIDE,
OXYGEN, (PER- DIS- DIS- DIS- DIS- TOT IT DIS IT DIS IT DIS-
DIS- CENT SOLVED SOLVED SOLVED SOLVED FIELD FIELD FIELD SOLVED
DATE SOLVED SATUR- (MG/L (MG/L (MG/L (MG/L MG/L AS MG/L AS MG/L AS (MG/L
(MG/L) ATION) AS CA) AS MG) AS NA) AS K) CACO3 CO3 HCO3 AS CL)
(00300) (00301) (00915) (00925) (00930) (00935) (39086) (00452) (00453) (00940)
OCT 1997
22... 11.8 107 75 37 26    2.4 284 0 346 42
NOV
20... 14.5 114 84 41 24    2.1 288 0 351 51
DEC
18... 15.5 114 85 41 27    1.9 288 7 337 57
JAN 1998
15... 14.6 101 93 39 13    1.3 252 0 307 39
FEB
10... 12.7 98 84 38 12    1.1 244 0 298 36
MAR
12... 14.0 102 78 35 11    1.3 212 0 259 35
APR
09... 10.6 95 74 32 8.9 1.4 220 5 259 29
MAY
06... 9.0 90 51 22 6.2 3.0 142 0 173 18
JUN
03... 8.9 97 81 38 9.7 1.3 252 7 293 28
09... 9.7 101 78 35 11    1.5 242 0 295 29
16... 7.6 84 46 21 6.0 3.5 128 0 156 17
JUL
01... 8.1 98 82 37 9.4 1.4 250 0 305 27
29... 9.9 124 80 39 16    2.1 284 0 345 30
AUG
25... 9.7 121 63 35 21    2.4 282 0 344 31
SEP
24... 9.5 99 76 39 27    2.4 314 0 383 38
SOLIDS, NITRO- NITRO- NITRO- NITRO- NITRO-
FLUO- SILICA, RESIDUE GEN, GEN, GEN,AM- GEN,AM- GEN,
SULFATE RIDE, DIS- AT 180 AMMONIA NITRITE MONIA + MONIA + NO2+NO3
DIS- DIS- SOLVED DEG. C DIS- DIS- ORGANIC ORGANIC DIS-
SOLVED SOLVED (MG/L DIS- SOLVED SOLVED DIS. TOTAL SOLVED
DATE (MG/L (MG/L AS SOLVED (MG/L (MG/L (MG/L (MG/L (MG/L
AS SO4) AS F) SIO2) (MG/L) AS N) AS N) AS N) AS N) AS N)
(00945) (00950) (00955) (70300) (00608) (00613) (00623) (00625) (00631)
OCT 1997
22... 38 .25 6.6 435 .105 .016 .36 <.20 1.37
NOV
20... 43 .23 5.6 448 <.020 .013 .24 .28 4.45
DEC
18... 48 .24 4.6 529 <.020 .029 .36 .37 6.22
JAN 1998
15... 45 .20 9.3 454 <.020 .030 .23 .35 14.1  
FEB
10... 45 .19 5.5 443 <.020 .018 .21 .38 11.0  
MAR
12... 39 .18 7.4 397 .029 .031 .30 .71 16.5  
APR
09... 37 .21 6.3 379 .049 .034 .31 .95 14.4  
MAY
06... 25 .23 6.9 316 .137 .053 .59 2.0   10.5  
JUN
03... 40 .21 4.6 419 <.020 .026 .22 .66 14.1  
09... 38 .25 4.8 432 .024 .010 .34 .72 12.6  
16... 22 .22 7.0 268 .107 .090 .56 3.4   10.8  
JUL
01... 38 .23 8.5 450 .038 .145 .66 .60 13.7  
29... 38 .20 8.6 430 <.020 .030 .20 .69 5.14
AUG
25... 36 .21 7.4 391 .020 .027 .25 1.0   1.21
SEP
24... 32 .28 11    441 .114 .033 .32 .65 1.53
PHOS- CARBON, SED.
PHOS- PHORUS MANGA- CARBON, ORGANIC SUSP.
PHOS- PHORUS ORTHO, IRON, NESE, ORGANIC SUS- SEDI- SIEVE
PHORUS DIS- DIS- DIS- DIS- DIS- PENDED MENT, DIAM.
TOTAL SOLVED SOLVED SOLVED SOLVED SOLVED TOTAL SUS- % FINER
DATE (MG/L (MG/L (MG/L (UG/L (UG/L (MG/L (MG/L PENDED THAN
AS P) AS P) AS P) AS FE) AS MN) AS C) AS C) (MG/L) .062 MM
(00665) (00666) (00671) (01046) (01056) (00681) (00689) (80154) (70331)
OCT 1997
22... .037 .029 .030 11 41    2.0 .50 22 31
NOV
20... .059 .039 .054 54 39    2.4 .50 79 4
DEC
18... .043 .033 .039 41 38    2.2 .70 22 6
JAN 1998
15... .082 .069 .070 <10 <4.0 2.1 .60 143 25
FEB
10... .054 .029 .039 40 5.3 1.7 .40 70 45
MAR
12... .131 <.010 .023 <10 <4.0 2.0 3.2   182 79
APR
09... .229 .064 .074 <10 <4.0 2.2 3.5   228 98
MAY
06... .583 .153 .141 <10 <4.0 4.1 --      1530 99
JUN
03... .050 <.010 .017 <10 4.5 1.6 .80 60 52
09... .149 .040 .048 <10 5.8 2.1 1.4   69 67
16... 1.15   .169 .176 <10 <4.0 --    5.6   1940 71
JUL
01... .129 .041 <.010 <10 <4.0 1.8 2.9   147 66
29... .070 <.010 <.010 <10 19    2.1 1.5   149 67
AUG
25... .126 <.010 <.010 <10 12    2.7 3.6   126 82
SEP
24... .096 .020 .023 <10 91    2.4 1.7   124 55


Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data