U.S. Geological Survey
Water Resources Data - Ohio, Water Year 97, Vol. 2 | Cuyahoga River Basin
Water-Discharge | Water-Quality
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				    04208000 CUYAHOGA RIVER AT INDEPENDENCE, OHIO


LOCATION.--Lat 41023'43", long 81037'48, in T.6 N., R.12 W., Cuyahoga County, Hydrologic Unit 04110002, on left bank 
240 ft downstream from bridge on Old Rockside Road, 0.8 mi northeast of Independence, and 3.0 mi downstream from 
Tinkers Creek.
DRAINAGE AREA.--707 mi2.

						    WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--September 1903 to December 1905 (fragmentary), January to July 1906 (gage heights and discharge   
measurements only), September 1921 to May 1923, September 1927 to December 1935, March 1940 to current year.
REVISED RECORDS.--WSP 1307: 1922-23(M), 1928-30(M), 1933(M), 1940(M), 1947(M), 1950(M). WSP 1912: Drainage area.
GAGE.--Water-stage recorder. Datum of gage is 583.57 ft above sea level. Sept. 21, 1903 to July 21, 1906, nonrecording 
gage at bridge 240 ft upstream at present datum. Sept. 28, 1921 to May 30, 1923, nonrecording gage at bridge    
240 ft upstream at datum 2.42 ft higher. Sept. to Oct. 8, 1927, nonrecording gage, and Oct. 9, 1927,to                
Dec. 31, 1935, Mar. 5, 1940, to June 19, 1969, water-stage recorder, at site 100 ft upstream at present datum.
REMARKS.--Records good except for periods of estimated record, which are poor. Natural flow of stream affected by 
diversion, storage reservoirs, and powerplants. Some diversion from the Tuscarawas River Basin drainage into this 
basin at Portage Lakes (see REMARKS for station 03117000). Water diverted into Ohio Canal at Brecksville, 6 mi 
upstream from station, bypasses station. These records do not include flow in canal except above about          
15,000 ft3/s, when channels merge. Satellite telemeter at gage. Water-quality data collected at this site.


			  DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997                   
							   DAILY MEAN VALUES                                                
 
 DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP
 
   1       931     e800     4470     1050      983     2330     1240      716     9400      437      226      234
   2       856     e450     3390     1090      901     3850     1040      654     9010      469      225      234
   3       792     e420     2380     1070      915     3200      954     1610     5190      387      226      328
   4       653     e700     2050      998     2040     2510      915     2060     3760      339      327      246
   5       582    e1600     1950     1400     3720    e1800      908     1160     3250      320      331      230
 
   6       540      922     1880     1310     2280    e3500      944     1680     2790      307      252      211
   7       561     1180     1610     1040     1680    e3000      787     1070     2180      303      234      209
   8       555     1980     1360      936     1530    e2400      677      915     1640      289      227      244
   9       560     2200     1240      862     1370    e2100      627     1130     1230      523      219      266
  10      1080     3040     1110      871     1170    e3200      592     1290      946      505      212      523
 
  11       809     2620     2920      722      993    e2300      567     1100      775      431      214      507
  12       632     2090     5830      654      898    e1600     2570      912      757      305     e350      427
  13       574     1780     3670      615      805    e1300     2780      805      929      285    e1200      368
  14       537     1570     2680      617      776    e4500     1880      706      762      296      297      361
  15       531     1370     2340      665      803    e2500     1280      976      572      296      257      349
 
  16       503     1260     2280      792      727    e1700     1140      972      507      293      712      344
  17       455     1520     4770      636      683    e1400     1630      802      566      292     1490      318
  18      1660     3340     3370      572      852    e1200     1450      849      759      289     1300      317
  19      4390     2050     2380     e520     2090    e1100     1100     1520      846      276      578      313
  20      3940     1500     1790     e480     2170    e1000      870     1400      617      259      460     4350
 
  21      2830     1310     1480     e460     1940     e900      764      915      547      258      445     1510
  22      2330     1260     1380     e800     1710     1390      781      800      589      256     1280      783
  23      1980     1170     1530     1490     1430     1170      784      793      475      276      620      594
  24     e1400     1090     4230     1030     1250     1060     1230      771      426      277      484      550
  25     e1200     1610     2530     1980     1090     1200     1090     3090      392      324      847      483
 
  26     e1000     5440     1770     1350      994     1750      790     3600     1210      301      611      419
  27      e940     3040     1580     1330     6670     1290      700     1940      642      316      467      388
  28      e900     2110     1710     2980     3040     1120     1170     1130      462      299      385      360
  29     e2000     1790     1610     1720      ---     1140      972     1160      433      304      321      349
  30     e3500     2050     1350     1260      ---     1180      783     1220      353      248      270      411
  31     e2000      ---     1190     1060      ---     1600      ---     1650      ---      230      255      ---
 
 TOTAL   41221    53262    73830    32360    45510    60290    33015    39396    52015     9990    15322    16226
 MEAN     1330     1775     2382     1044     1625     1945     1101     1271     1734      322      494      541
 MAX      4390     5440     5830     2980     6670     4500     2780     3600     9400      523     1490     4350
 MIN       455      420     1110      460      683      900      567      654      353      230      212      209
 
 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1922 - 1997, BY WATER YEAR (WY)                                 
 
 MEAN      378      653      948     1120     1312     1674     1451      945      631      457      360      374
 MAX      1747     2713     2889     3585     3217     3008     3175     2396     2450     1543     1363     1866
 (WY)     1955     1986     1978     1952     1959     1963     1957     1984     1989     1992     1992     1979
 MIN      65.8     74.9      115      191      194      584      244      120      111     82.9     62.3     61.0
 (WY)     1934     1931     1964     1945     1934     1931     1946     1934     1934     1954     1933     1933
 
 SUMMARY STATISTICS           FOR 1996 CALENDAR YEAR        FOR 1997 WATER YEAR           WATER YEARS 1922 - 1997
 
 ANNUAL TOTAL                      531122                     472437                                             
 ANNUAL MEAN                         1451                       1294                        859                  
 HIGHEST ANNUAL MEAN                                                                       1393              1975
 LOWEST ANNUAL MEAN                                                                         278              1934
 HIGHEST DAILY MEAN                  8080     Jan 19            9400     Jun  1           16700       Jan 22 1959
 LOWEST DAILY MEAN                    250     Aug 19             209     Sep  7              21       Aug 28 1933
 ANNUAL SEVEN-DAY MINIMUM             278     Aug 31             241     Aug  5              37       Aug 26 1933
 INSTANTANEOUS PEAK FLOW                                       13500     Jun  1           16700       Jan 22 1959
 INSTANTANEOUS PEAK STAGE                                         20.45  Jun  1              22.41    Jan 22 1959
 INSTANTANEOUS LOW FLOW                                          181     Sep  6              21       Aug 28 1933
 10 PERCENT EXCEEDS                  3140                       2720                       2020                  
 50 PERCENT EXCEEDS                   993                        972                        484                  
 90 PERCENT EXCEEDS                   338                        298                        129                  

 e Estimated.


				             04208000 CUYAHOGA RIVER AT INDEPENDENCE, OHIO
							 WATER-QUALITY RECORDS

PERIOD OF RECORD.--October 1948 to September 1949, October 1950 to current year.
PERIOD OF DAILY RECORD.--
   CHLORIDE: October 1987 to September 1994.
   NITROGEN, NITRITE + NITRATE: October 1987 to September 1994.
   NITROGEN, AMMONIA + ORGANIC: October 1987 to September 1994.
   PHOSPHORUS: October 1987 to September 1994.
   SUSPENDED SEDIMENT DISCHARGE: Water years 1950-74, December 1976 to September 1984, October 1987 to current year.
INSTRUMENTATION.--Alcohol-actuated thermograph October 1956 to June 1965, water-quality monitor from July 1965 to 
September 1991, and a refrigerated water-quality pumping sampler, operated by Heidelberg College Water Quality 
Laboratory, from October 1987 to September 1994.
REMARKS.--Sediment samples were collected by a local observer on an approximate once daily basis. Sediment loads were 
calculated using the mean-interval method (Porterfield, George, 1972, Computation of Fluvial-Sediment Discharge: 
U.S. Geological Survey, Techniques of Water-Resources Investigations, Book 3, Chap. C3, 66 p.). For days with 
unsteady concentration, discharge, or both, the day was subdivided into half-hour intervals and the daily load was 
calculated by summing the loads for these half-hour intervals. This required interpolation between measured and 
estimated concentrations.
EXTREMES FOR PERIOD OF DAILY RECORD.--
SEDIMENT CONCENTRATIONS: Maximum daily mean, 3,400 mg/L, Dec. 31, 1992; minimum daily mean, 1 mg/L, Feb. 12, 13, 
1989.
SEDIMENT LOADS: Maximum daily, 82,900 tons, Dec. 31, 1992; minimum daily, 1.2 tons, Feb. 13, 1989.
EXTREMES FOR CURRENT YEAR.--
SEDIMENT CONCENTRATIONS: Maximum daily mean, 2,210 mg/L, June 1; minimum daily mean, 7 mg/L, Sep. 7. 
SEDIMENT LOADS: Maximum daily, 49,700 tons, June 1; minimum daily, 3.8 tons, Sep. 7.


				  WATER-QUALITY DATA, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997

                                                     DIS-              PH
                                                   CHARGE,   SPE-     WATER
                                                    INST.    CIFIC    WHOLE
                                           SAM-     CUBIC    CON-     FIELD   TEMPER-  TEMPER-
                                           PLING     FEET    DUCT-   (STAND-   ATURE    ATURE
                         DATE      TIME   METHOD,    PER     ANCE      ARD      AIR     WATER
                                           CODES*   SECOND  (US/CM)   UNITS)  (DEG C)  (DEG C)
                                          (82398)  (00061)  (00095)  (00400)  (00020)  (00010)
                     OCT
                       09...       1305        10      488      756       --     15.5     15.0
                     MAY
                       01...       1250        10      700      742      8.1      7.0     13.5
                       01...       1400        50      700       --       --       --       --
                     AUG
                       28...       1515        10      366      741      8.0     24.0     22.5
                       28...       1615        50      363       --       --       --       --

                                                NITRO-   NITRO-
                                       CHLO-     GEN,   GEN,AM-                    SEDIMENT
                                       RIDE,   NO2+NO3  MONIA +   PHOS-    SEDI-   PARTICLE
                                       DIS-      DIS-   ORGANIC  PHORUS    MENT,   SIZE
                                       SOLVED   SOLVED   TOTAL    TOTAL    SUS-    .0625MM
                              DATE     (MG/L    (MG/L    (MG/L    (MG/L    PENDED  SILTCLAY
                                       AS CL)   AS N)    AS N)    AS P)    (MG/L)  (PERCENT)
                                      (00940)  (00631)  (00625)  (00665)  (80154)  (80250)
                          OCT
                            09...       --        --        --       --      15       --
                          MAY
                            01...      110       1.7       0.7     0.12      14     84.6
                            01...      120       1.7       0.6     0.10      --       --
                          AUG
                            28...       99       3.1       0.6     0.14      28       --
                            28...       99       3.1       0.7     0.14      --       --

*10 - Stream cross-section sample using equal-width-increment (EWI) sampling method.
*50 - Point sample obtained from flow tank.

				             04208000 CUYAHOGA RIVER AT INDEPENDENCE, OHIO
                  SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997            

                     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         931        68        172          e800        58        126          4470       476       6500
   2         856        46        106          e450        27         33          3390       264       2490
   3         792        41         89          e420        18         20          2380       114        745
   4         653        28         50          e700        17         33          2050        72        401
   5         582        19         31         e1600        33        143          1950        65        341
 
   6         540        18         26           922        49        122          1880        62        318
   7         561        18         27          1180        94        305          1610        52        225
   8         555        18         27          1980       243       1400          1360        43        157
   9         560        22         39          2200       161       1110          1240        31        105
  10        1080       100        305          3040       150       1230          1110        30         90
 
  11         809        30         66          2620        93        660          2920       215       3190
  12         632        16         28          2090        65        370          5830       504       8360
  13         574        16         25          1780        47        228          3670       233       2340
  14         537        14         20          1570        39        166          2680       147       1070
  15         531        13         19          1370        34        126          2340       117        736
 
  16         503        12         17          1260        34        116          2280       109        680
  17         455        11         13          1520        69        377          4770       510       7060
  18        1660       198       1880          3340       291       2750          3370       206       1920
  19        4390       507       6040          2050        99        559          2380       114        740
  20        3940       273       2980          1500        45        186          1790        80        390
 
  21        2830       158       1210          1310        32        112          1480        57        229
  22        2330       119        750          1260        29         98          1380        50        187
  23        1980       101        540          1170        27         87          1530       117        610
  24       e1400        87        328          1090        28         82          4230       864      10500
  25       e1200        72        234          1610        66        395          2530       237       1660
 
  26       e1000        60        163          5440       593       9170          1770        83        403
  27        e940        52        132          3040       224       1870          1580        55        234
  28        e900        54        130          2110       125        719          1710        52        242
  29       e2000       247       1340          1790        80        386          1610        48        208
  30       e3500       668       6310          2050        89        509          1350        42        152
  31       e2000       212       1150           ---       ---        ---          1190        40        128
 
 TOTAL     41221       ---      24247         53262       ---      23488         73830       ---      52411
 
 DAY                   JANUARY                          FEBRUARY                            MARCH
 
   1        1050        36        102           983        32         85          2330       191       1210
   2        1090        42        123           901        25         60          3850       664       7500
   3        1070        33         96           915        27         66          3200       284       2470
   4         998        33         88          2040       372       3640          2510       190       1290
   5        1400       112        480          3720       620       6740         e1800       186        902
 
   6        1310        58        211          2280       188       1190         e3500       267       2530
   7        1040        30         84          1680        91        416         e3000       169       1370
   8         936        19         48          1530        63        261         e2400       127        823
   9         862        18         42          1370        53        196         e2100       122        689
  10         871        20         46          1170        45        141         e3200       247       2130
 
  11         722        20         38           993        34         91         e2300       145        898
  12         654        24         42           898        29         70         e1600        89        384
  13         615        25         41           805        26         56         e1300        88        310
  14         617        23         38           776        22         46         e4500       336       4080
  15         665        15         27           803        19         41         e2500       251       1690
 
  16         792        81        176           727        16         31         e1700       125        572
  17         636        60        104           683        17         31         e1400        87        327
  18         572        30         47           852        60        191         e1200        65        212
  19        e520        28         40          2090       299       1750         e1100        53        158
  20        e480        23         30          2170       219       1320         e1000        44        120
 
  21        e460        32         40          1940       132        694          e900        51        124
  22        e800       200        432          1710        79        368          1390        97        368
  23        1490       189        810          1430        47        183          1170        52        167
  24        1030        55        154          1250        37        124          1060        33         96
  25        1980       378       2220          1090        27         79          1200        66        255
 
  26        1350        95        359           994        35        100          1750       406       1940
  27        1330        87        450          6670      1390      29200          1290       218        771
  28        2980       527       4660          3040       331       2750          1120        45        137
  29        1720       116        550           ---       ---        ---          1140        30         92
  30        1260        58        200           ---       ---        ---          1180        36        122
  31        1060        39        112           ---       ---        ---          1600        53        234
 
 TOTAL     32360       ---      11890         45510       ---      49920         60290       ---      33971
   
  DAY               APRIL                             MAY                               JUNE
 
   1        1240        24         79           716        18         34          9400      2210      49700
   2        1040        19         53           654        13         22          9010       630      15500
   3         954        19         49          1610       192       1260          5190       396       5610
   4         915        19         48          2060       252       1570          3760       296       3010
   5         908        20         49          1160        91        291          3250       250       2190
 
   6         944        20         51          1680       246       1190          2790       228       1710
   7         787        20         43          1070        48        145          2180       203       1200
   8         677        15         27           915        22         54          1640       160        710
   9         627        13         21          1130        43        134          1230       122        405
  10         592        10         16          1290        61        228           946        92        236
 
  11         567         9         14          1100        35        105           775        67        141
  12        2570       429       5550           912        24         59           757        91        209
  13        2780       342       2750           805        19         42           929       144        368
  14        1880       154        802           706        17         33           762        79        166
  15        1280        66        230           976        77        222           572        49         76
 
  16        1140        48        154           972        58        160           507        37         50
  17        1630       141        623           802        23         50           566        53         81
  18        1450        55        220           849        45        179           759       123        364
  19        1100        28         83          1520       184        788           846       116        271
  20         870        19         45          1400       134        537           617        44         74
 
  21         764        19         38           915        40        100           547        38         56
  22         781        17         37           800        26         57           589        74        121
  23         784        18         37           793        24         52           475        44         56
  24        1230        94        347           771        22         47           426        37         42
  25        1090        81        253          3090       866      12400           392        28         29
 
  26         790        20         44          3600       527       5730          1210       387       1420
  27         700        16         30          1940       217       1170           642       109        199
  28        1170        60        202          1130       109        336           462        49         61
  29         972        29         78          1160       109        371           433        80         96
  30         783        21         44          1220        93        315           353        44         42
  31         ---       ---        ---          1650       523       6140           ---       ---        ---
 
 TOTAL     33015       ---      12017         39396       ---      33821         52015       ---      84193  
 
 DAY                JULY                             AUGUST                           SEPTEMBER
 
   1         437        73       94             226         9        5.7           234        12        7.3
   2         469        49       63             225        11        6.8           234        12        7.6
   3         387        31       32             226        10        6.1           328        26       24  
   4         339        26       24             327        24       23             246        14        9.3
   5         320        24       21             331        19       18             230        12        7.3
 
   6         307        18       15             252        12        8.2           211         9        5.4
   7         303        17       14             234        10        6.6           209         7        3.8
   8         289        16       12             227        12        7.0           244         8        5.1
   9         523        78      127             219        12        7.1           266         9        6.5
  10         505        40       55             212        12        6.9           523        43       69  
 
  11         431        29       35             214        12        6.9           507        29       40  
  12         305        21       17            e350        18       17             427        19       22  
  13         285        19       14           e1200       222      719             368        15       15  
  14         296        14       11             297        46       41             361        16       15  
  15         296        16       13             257        17       12             349        12       11  
 
  16         293        15       12             712       738     2310             344        12       11  
  17         292        14       11            1490       959     4250             318        13       11  
  18         289        16       12            1300       469     1980             317        14       12  
  19         276        15       11             578       106      168             313        16       13  
  20         259        10        7.2           460        66       82            4350      1030    16100  
 
  21         258        10        7.1           445        67       88            1510       301     1260  
  22         256        12        8.3          1280       339     1240             783       124      270  
  23         276        13        9.9           620        65      118             594        55       89  
  24         277        11        7.9           484        78      117             550        31       47  
  25         324        21       19             847       315      789             483        24       31  
 
  26         301        23       19             611        86      147             419        20       22  
  27         316        23       19             467        39       50             388         9        9.4
  28         299        17       13             385        28       29             360         8        7.6
  29         304        14       12             321        19       16             349        11       10  
  30         248        13        8.4           270        15       11             411        25       31  
  31         230        11        6.6           255        12        8.5           ---       ---        ---
 
 TOTAL      9990       ---      730.4         15322       ---    12294.8         16226       ---    18172.3
 
 YEAR     472437             357155.5                                                                      
 
   e  Estimated


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