U.S. Geological Survey
Water Resources Data - Ohio, Water Year 97, Vol. 1 | Upper Twin Creek Basin


			03237280 UPPER TWIN CREEK AT MCGAW, OHIO
			     Hydrologic Benchmark Station

LOCATION.--Lat 38038'37", long 83012'57", Scioto County, Hydrologic Unit 05090201, on right bank, 0.3 mi downstream 
from Brown Run, 0.3 mi upstream from Tucker Run, 0.7 mi upstream from bridge on U.S. Highway 52 at McGaw, 2.7 mi 
northeast of Buena Vista, and 3.2 mi upstream from mouth.
DRAINAGE AREA.--12.2 mi2.
				WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--June 1963 to current year.
GAGE.--Water-stage recorder. Datum of gage is 538.41 ft above sea level (revised). Ohio Department of Highways 
benchmark. Prior to July 21, 1972, at site 0.7 mi downstream at datum 18.41 ft lower. July 21, 1972, to               
September 30, 1984, at same site at datum 5.00 ft higher.
REMARKS.--Records poor. Periods of no flow occur most years.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of July 3, 1960, reached a stage of 11.62 ft; discharge, 7,230 ft3/s, on 
basis of contracted-opening and flow-over-road measurement of peak flow.

	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       .71     1.8     125        9.7     20       e180     34       20     129      100        e.01     e.05
   2       .59     1.4      32        9.1     16       e780     24       15      85       19        e.02     e.04
   3       .60     1.0      19        8.3     14       e150     19       74     129        8.2      e.04     e.05
   4       .42      .83     11        7.2    118        e38     15       80      57        4.7      e.05     e.05
   5       .26      .62      7.4     58       92        e31     13       47      30        2.7      e.06     e.06
 
   6       .18      .52      8.8     40       39        e39     12       30      17        1.4      e.07     e.05
   7       .14      .97      7.3     26       27        e31      9.8     19      12        1.0      e.08     e.05
   8       .10    51         5.9     19       22        e24      8.2     33      12        e.80     e.08     e.06
   9       .09    27         4.4    e15       18        e19      7.2     64      55        e.62     e.08     e.06
  10       .08    19         3.3    e11       16        e74      6.4     38      32        e.48     e.08     e.07
 
  11       .06    14         3.3     e9.0     14        e50      6.0     25      17        e.39     e.08     e.06
  12       .04     9.8     110       e7.0     13        e26      8.1     19      15        e.32     e.08     e.06
  13       .03     6.2      51       e6.0     11        e25      8.6     15      16        e.25     e.10     e.06
  14       .02     4.0      26       e5.4     14         54      7.2     12      14        e.20     e.12     e.05
  15       .02     2.6      18       e4.8     19         50      6.8     10      11        e.17     e.15     e.05
 
  16       .02     1.8      14       e4.3     20         32      7.0      8.1    15        e.14     e.13     e.05
  17       .02     1.7     150       e4.0     18         24      7.9      7.3   103        e.12     e.25     e.05
  18       .10     7.3      52       e3.7     17         54      7.4      6.5    44        e.10     e.50     e.05
  19       .06     9.9      28       e3.3     16         97      7.3      6.1    25        e.09     e.33     e.04
  20       .17     8.8      17       e3.1     15         59      7.0     15      17        e.08     e.20     e.04
 
  21       .47     8.3      e9.0     e2.9     16         38      9.5     11      11        e.07     e.15     e.04
  22       .59     7.4      e8.0     e6.0     14         25     11        8.7     7.6      e.06     e.11     e.04
  23       .58     6.2       8.1     15       11         17     11        7.4     5.2      e.06     e.09     e.04
  24       .48     5.3      82      159       10         13     10        6.9     3.4     11        e.07     e.04
  25       .41     8.9      44      177        9.8       14      8.9      8.0     2.2      2.2      e.06     e.04
 
  26       .49    37        28       40       11         92      7.8     21       2.6      1.0      e.06     e.04
  27      1.8     28        21       49       14         50     11       19       1.5      1.2      e.05     e.04
  28      3.5     21        18      139       12         34     46       14       e.90     1.0      e.04     e.03
  29      2.7     16        15       46        ---      162     32       11       e.80     e.52     e.06     e.03
  30      2.5     38        12       31        ---       70     22       10       4.8      e.20     e.05     e.03
  31      2.3       ---     11       24        ---       51      ---    104        ---     e.06     e.05      ---
 
 TOTAL   19.53   346.34    949.5    942.8    636.8     2403    391.1    765.0   875.00   158.13     3.30     1.42
 MEAN      .63     11.5     30.6     30.4     22.7     77.5     13.0     24.7     29.2     5.10      .11     .047
 MAX       3.5       51      150      177      118      780       46      104      129      100      .50      .07
 MIN       .02      .52      3.3      2.9      9.8       13      6.0      6.1      .80      .06      .01      .03
 CFSM      .05      .95     2.51     2.49     1.86     6.35     1.07     2.02     2.39      .42      .01      .00
 IN.       .06     1.06     2.90     2.87     1.94     7.33     1.19     2.33     2.67      .48      .01      .00
 
 STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1963 - 1997, BY WATER YEAR (WY)                                 
 
 MEAN     2.45     6.45     17.1     18.0     23.6     31.4     29.2     21.6     7.24     3.90     3.21     3.04
 MAX      16.8     29.0     81.6     46.3     60.9     90.7     66.7     93.1     35.3     30.8     38.0     32.5
 (WY)     1990     1986     1979     1996     1975     1964     1965     1996     1979     1986     1979     1979
 MIN      .000     .000     .000      .44     4.42     4.39     4.41     1.63     .043     .071     .009     .010
 (WY)     1964     1964     1964     1981     1978     1969     1971     1991     1988     1964     1993     1983
 
 SUMMARY STATISTICS           FOR 1996 CALENDAR YEAR        FOR 1997 WATER YEAR           WATER YEARS 1963 - 1997
 
 ANNUAL TOTAL                        9374.24                    7491.92                                          
 ANNUAL MEAN                           25.6                       20.5                       13.9                
 HIGHEST ANNUAL MEAN                                                                         31.9            1979
 LOWEST ANNUAL MEAN                                                                           5.15           1969
 HIGHEST DAILY MEAN                   850     May 15             780     Mar  2             850       May 15 1996
 LOWEST DAILY MEAN                       .00  Jul  3                .01  Aug  1                .00    Jul 12 1963
 ANNUAL SEVEN-DAY MINIMUM                .00  Jul  3                .03  Oct 11                .00    Sep 21 1963
 INSTANTANEOUS PEAK FLOW                                        4430     Mar  2 a          4430       Mar  2 1997
 INSTANTANEOUS PEAK STAGE                                         10.01  Mar  2              10.20    Mar  4 1964
 INSTANTANEOUS LOW FLOW                                             .01  Aug  1                .00    Jul 12 1963
 ANNUAL RUNOFF (CFSM)                   2.10                       1.68                       1.14               
 ANNUAL RUNOFF (INCHES)                28.58                      22.84                      15.47               
 10 PERCENT EXCEEDS                    54                         50                         32                  
 50 PERCENT EXCEEDS                     7.4                        8.1                        3.2                
 90 PERCENT EXCEEDS                      .04                        .05                        .08               
 
a Peaks above base shown in table of peak discharges and stages at continuous-record surface-water-discharge stations.
e Estimated.

	           	WATER-QUALITY DATA, WATER YEAR OCTOBER 1995 TO SEPTEMBER 1996

                           
                          DIS-              PH                                         OXYGEN,   COLI-    STREP-
                        CHARGE,   SPE-     WATER                                         DIS-    FORM,   TOCOCCI
                         INST.    CIFIC    WHOLE                                        SOLVED   FECAL,   FECAL,
                         CUBIC    CON-     FIELD   TEMPER-  TEMPER-    TUR-   OXYGEN,   (PER-    0.7     KF AGAR
                          FEET    DUCT-   (STAND-   ATURE    ATURE     BID-     DIS-     CENT    UM-MF   (COLS.
       DATE      TIME     PER     ANCE      ARD      AIR     WATER     ITY     SOLVED   SATUR-  (COLS./    PER
                         SECOND  (US/CM)   UNITS)  (DEG C)  (DEG C)   (NTU)    (MG/L)   ATION)  100 ML)  100 ML)
                        (00061)  (00095)  (00400)  (00020)  (00010)  (00076)  (00300)  (00301)  (31625)  (31673)
   NOV
     27...       1130      1.8       118      5.5     17.0      7.5     0.40     11.1       96       23       75
   FEB
     21...       1100     32          70      6.8      9.5      4.0     2.3      12.5       98      K11      113
                                   

                                                            BICAR-    CAR-     ALKA-
                HARD-             MAGNE-            POTAS-  BONATE   BONATE   LINITY             CHLO-    FLUO-
                NESS    CALCIUM    SIUM,  SODIUM,    SIUM,   WATER    WATER   WAT WH   SULFATE   RIDE,    RIDE,
                TOTAL    DIS-      DIS-    DIS-      DIS-   DIS IT   DIS IT   TOT FET   DIS-     DIS-      DIS-
                (MG/L    SOLVED   SOLVED  SOLVED    SOLVED   FIELD    FIELD    FIELD    SOLVED   SOLVED   SOLVED
       DATE      AS      (MG/L    (MG/L    (MG/L    (MG/L   MG/L AS  MG/L AS  MG/L AS   (MG/L    (MG/L    (MG/L
                CACO3)   AS CA)   AS MG)   AS NA)   AS K)    HCO3      CO3     CACO3   AS SO4)   AS CL)   AS F)
               (00900)  (00915)  (00925)  (00930)  (00935)  (00453)  (00452)  (00410)  (00945)  (00940)  (00950)
   NOV
     27...         42     7.1      5.8      3.2      1.8        23      0         18    25        2.7     <0.10
   FEB
     21...         26     4.2      3.8      2.1      1.5        16      0         14    19        1.5     <0.10
                                    
                           
                        SOLIDS,   NITRO-   NITRO-   NITRO-                     PHOS-
               SILICA,  RESIDUE    GEN,     GEN,   GEN,AM-            PHOS-   PHORUS    ALUM-
                DIS-    AT 180   NO2+NO3  AMMONIA  MONIA +   PHOS-   PHORUS    ORTHO,   INUM,   BARIUM,  COBALT,
                SOLVED   DEG. C    DIS-     DIS-   ORGANIC  PHORUS     DIS-    DIS-      DIS-    DIS-     DIS-
                (MG/L     DIS-    SOLVED   SOLVED   TOTAL    TOTAL    SOLVED  SOLVED    SOLVED  SOLVED   SOLVED
       DATE      AS      SOLVED   (MG/L    (MG/L    (MG/L    (MG/L    (MG/L   (MG/L     (UG/L    (UG/L    (UG/L
                SIO2)    (MG/L)   AS N)    AS N)    AS N)    AS P)    AS P)   AS P)     AS AL)   AS BA)   AS CO)
               (00955)  (70300)  (00631)  (00608)  (00625)  (00665)  (00666)  (00671)  (01106)  (01005)  (01035)
   NOV
     27...        8.3      67     --       --       --       --       --       --        <10       18       <3
   FEB
     21...        9.1      54    0.470    0.020    <0.20   <0.010   <0.010   <0.010       20       15       <3
                                    
                           
                                       MANGA-   MOLYB-            SELE-             STRON-   VANA-
                     IRON,   LITHIUM   NESE,    DENUM,  NICKEL,   NIUM,   SILVER,    TIUM,   DIUM,    SEDI-
                      DIS-     DIS-     DIS-     DIS-    DIS-      DIS-     DIS-     DIS-     DIS-    MENT,
                     SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SUS-
            DATE     (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    PENDED
                     AS FE)   AS LI)   AS MN)   AS MO)   AS NI)   AS SE)   AS AG)   AS SR)   AS V)    (MG/L)
                    (01046)  (01130)  (01056)  (01060)  (01065)  (01145)  (01075)  (01080)  (01085)  (80154)
        NOV
          27...        22       <4       <1      <10       <1       <1     <1.0       50       <6       5
        FEB
          21...        29       <4        1      <10       <1       <1     <1.0       31       <6       3

        a Peaks above base shown in table of peak discharges and stages at continuous-record surface-water-discharge stations
	K Results based on colony count outside the ideal range


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