Station list     Available data
ROCK RIVER BASIN


05440700       ROCK RIVER AT BYRON, IL



LOCATION.-- Lat 42°07'23", long 89°15'21", in NW1/4SW1/4 sec.32, T.25 N., R.11 E., Ogle County, Hydrologic Unit 7090005, at bridge on State Highway 72, 0.3 mi south of Byron, 1.2 mi upstream from Mill Creek, 1.3 mi downstream from Stillman Creek, and at mile 120.3.

DRAINAGE AREA.-- 7,990 mi2.

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

DISCHARGE: May 2000 to current year.
 

STAGE: Water year 2000.
SURFACE-WATER QUALITY
 

CHEMICAL: 1978-1988. Additional data for water years 1964, 1971-1977 are published in Water-Resources Investigations 78-23 and 79-24 as site P 14.

GAGE.-- Water-stage recorder, phone telemeter, and raingage. Datum of gage is 666.13 ft above sea level.

EXTREMES FOR PERIOD OF RECORD.--
SURFACE-WATER DISCHARGE AND STAGE: Maximum discharge, 35,400 ft3/s, June 14, 2000, gage-height, 16.12 ft; minimum discharge, 2,600 ft3/s, Aug. 1, 15, 2001.

REMARKS FOR CURRENT YEAR.-- Records good except those for estimated daily discharges, which are poor.
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
 
1 ---  ---  ---  ---  ---  ---  ---  ---  15100  10300  5980  3620 
2 ---  ---  ---  ---  ---  ---  ---  6130  21500  9690  6660  3530 
3 ---  ---  ---  ---  ---  ---  ---  5890  24300  15900  5840  3520 
4 ---  ---  ---  ---  ---  ---  ---  5760  24600  15500  5380  3450 
5 ---  ---  ---  ---  ---  ---  ---  5510  24200  13400  5190  3450 
 
6 ---  ---  ---  ---  ---  ---  ---  5250  23900  12000  5240  3420 
7 ---  ---  ---  ---  ---  ---  ---  5160  23300  11000  5590  3410 
8 ---  ---  ---  ---  ---  ---  ---  5040  22700  10300  5460  3330 
9 ---  ---  ---  ---  ---  ---  ---  5590  22300  9730  5720  3310 
10 ---  ---  ---  ---  ---  ---  ---  6990  21900  10600  5660  3340 
 
11 ---  ---  ---  ---  ---  ---  ---  7310  21400  11800  5400  3740 
12 ---  ---  ---  ---  ---  ---  ---  7790  24600  11100  5290  7180 
13 ---  ---  ---  ---  ---  ---  ---  7480  31600  10300  4690  6810 
14 ---  ---  ---  ---  ---  ---  ---  6750  34700  9780  4560  6980 
15 ---  ---  ---  ---  ---  ---  ---  6180  32400  9190  4440  6830 
 
16 ---  ---  ---  ---  ---  ---  ---  6130  29800  8590  4280  6660 
17 ---  ---  ---  ---  ---  ---  ---  6070  27400  8010  4590  6280 
18 ---  ---  ---  ---  ---  ---  ---  6840  25000  7510  4350  5760 
19 ---  ---  ---  ---  ---  ---  ---  12200  22600  7190  4220  5410 
20 ---  ---  ---  ---  ---  ---  ---  12700  20100  6950  4140  5320 
 
21 ---  ---  ---  ---  ---  ---  ---  12600  18200  6680  4140  5100 
22 ---  ---  ---  ---  ---  ---  ---  12400  16400  6390  4130  5450 
23 ---  ---  ---  ---  ---  ---  ---  12400  15100  6070  4080  11700 
24 ---  ---  ---  ---  ---  ---  ---  12100  14600  5760  e4000  11600 
25 ---  ---  ---  ---  ---  ---  ---  11500  15000  5730  e3900  9870 
 
26 ---  ---  ---  ---  ---  ---  ---  10700  14600  5480  e3800  9060 
27 ---  ---  ---  ---  ---  ---  ---  10600  13700  5190  e3800  8170 
28 ---  ---  ---  ---  ---  ---  ---  10800  12700  4950  e3700  7180 
29 ---  ---  ---  ---  ---  ---  ---  11200  11800  4900  e3600  6530 
30 ---  ---  ---  ---  ---  ---  ---  11000  11000  4710  3670  6030 
 
31 ---  ---  ---  ---  ---  ---  ---  12100  ---  4980  3720  --- 

TOTAL --- --- --- --- --- --- --- --- 636500 269680 145220 176040
MEAN --- --- --- --- --- --- --- --- 21220 8699 4685 5868
MAX --- --- --- --- --- --- --- --- 34700 15900 6660 11700
MIN --- --- --- --- --- --- --- --- 11000 4710 3600 3310
CFSM --- --- --- --- --- --- --- --- 2.66 1.09 .59 .73
IN. --- --- --- --- --- --- --- --- 2.96 1.26 .68 .82
e Estimated
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 2000 - 2000, BY WATER YEAR (WY)
MEAN --- --- --- --- --- --- --- --- 21220 8699 4685 5868
MAX --- --- --- --- --- --- --- --- 21220 8699 4685 5868
(WY) --- --- --- --- --- --- --- --- 2000 2000 2000 2000
MIN --- --- --- --- --- --- --- --- 21220 8699 4685 5868
(WY) --- --- --- --- --- --- --- --- 2000 2000 2000 2000



Table of Contents

Introduction

Station Descriptions

Surface-Water Data

Ground-Water Data

Meteorological Data

Biological Data