French Creek at Utica, PA

1998 Water-Year
Basic Fixed-Site Water-Quality Records
[drop]

--------
 
                                                FRENCH CREEK BASIN

                                       03024000  FRENCH CREEK AT UTICA, PA
                                   (National water-quality assessment station)

LOCATION.--Lat 41`26'15", long 79`57'22", Venango County, Hydrologic Unit 05010004, on right bank at upstream side
   of bridge on SR 3017 at Utica and 2,000 ft upstream from Mill Creek.

DRAINAGE AREA.--1,028 mi2.

                                             WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--August 1932 to current year.

REVISED RECORDS.--WSP 743:   Drainage area.  WSP 823:   1936 (M).  WSP 1275:   1933, 1936.

GAGE.--Water-stage recorder.  Datum of gage is 1,019.44 ft above sea level.  Prior to Nov. 27, 1933, nonrecording
   gage at same site and datum.

REMARKS.--Records good except for estimated daily discharges, which are fair.  Flow regulated since 1971 by Union
   City Reservoir 50 mi upstream, serving as a retarding basin, and since January 1974 by Woodcock Creek Lake,
   25 mi upstream.  Several measurements of water temperature were made during the year.  U.S. Army Corps of
   Engineers satellite telemeter at station.

EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum stage since at least 1912, 15.7 ft in March 1913, discharge
   35,600 ft3/s.


                    DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
                                               DAILY MEAN VALUES

DAY       OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP

  1      2170     1320     2890    e2110     2330     1680     2390     2640      427      221      119      122
  2      2200     1390     2620    e1960     2020     2060     2570     3080      389      233      114      113
  3      1650     1690     2250    e2100     1870     1950     2540     5920      411      256      109      110
  4      1340     1600     2490     4590     1750     1810     2250     4920      383      235      114      102
  5      1140     1410     3100     7210     1560     1730     2010     4460      351      213      114       95

  6      1020     1200     2850     7610     1370     1700     1780     3950      337      194      112       93
  7      1030      989     2530     7070     1200     1640     1490     3400      322      185      110      106
  8       916      945     2310    11500     1120     1580     1290     2840      312      182      106      108
  9       693      961     2220    15200     1060     1960     1690     2400      296      174      110      127
 10       550     1010     2610    16100     1020     2590     4500     2070      288      195      142      127

 11       472      961     3980    14500     1010     2630     4750     1780      286      385      171       98
 12       431      897     3970    11300     1170     2310     3800     1810      525      293      138       92
 13       404      885     3570     8230     1810     2020     2940     2190      582      225      127       96
 14       390      902     3190     6070     2130     1900     2440     1850      635      191      128       95
 15       371     1010     2690     4920     1890     1780     2890     1460      635      171      124       90

 16       354     1140     2310     4310     1560     1640     5180     1220      632      156      113       88
 17       341     1210     2070     3830     1540     1600     7120     1040      741      147      106       87
 18       331     1200     1910     3390     2720     2150     6480      913      544      139      111       84
 19       328     1150     1770     3060     3450     4040     5200      818      445      133      112       84
 20       319     1210     1760     2840     3230     5330     6960      733      392      134      108       95

 21       309     1350     1870     2620     2960     5520     7400      652      343      134      104       93
 22       290     1760     1820     2370     2640     5280     5810      595      312      148      102       87
 23       279     2480     2150     2370     2380     4370     4650      549      293      174      100       82
 24       326     2570     3070     2680     2180     3700     3700      517      277      207      105       81
 25       410     2280     3970     2670     1980     3230     3060      490      263      275      119       82

 26       504     2010     5200     2380     1770     2970     3350      465      252      265      119       82
 27       755     2520     5160     2100     1540     2850     4520      446      241      224      111       81
 28      1900     3240     4220     1950     1370     2630     3990      421      233      186      117       89
 29      2160     3170     3450     1810      ---     2860     3360      405      221      162      120       86
 30      1870     3050     2850     2180      ---     3090     2900      385      225      141      125       84
 31      1590      ---    e2410     2600      ---     2690      ---      375      ---      129      127      ---

TOTAL   26843    47510    89260   163630    52630    83290   113010    54794    11593     6107     3637     2859
MEAN      866     1584     2879     5278     1880     2687     3767     1768      386      197      117     95.3
MAX      2200     3240     5200    16100     3450     5520     7400     5920      741      385      171      127
MIN       279      885     1760     1810     1010     1580     1290      375      221      129      100       81
CFSM      .84     1.54     2.80     5.13     1.83     2.61     3.66     1.72      .38      .19      .11      .09
IN.       .97     1.72     3.23     5.92     1.90     3.01     4.09     1.98      .42      .22      .13      .10

   e  Estimated.
     
                                                FRENCH CREEK BASIN

                                  03024000  FRENCH CREEK AT UTICA, PA--Continued

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1974 - 1998, BY WATER YEAR (WY)  (SINCE REGULATION)

          OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP

MEAN     1351     2438     2856     2637     2946     3745     3076     1732     1283      844      704      982
MAX      3954     6309     6029     5426     6394     5778     5101     4081     4659     2629     3297     3409
(WY)     1991     1986     1978     1993     1976     1977     1994     1996     1986     1987     1980     1990
MIN       121      176     1049      869      629     2085     1655      452      209      192      112     71.7
(WY)     1992     1992     1990     1977     1987     1990     1976     1985     1991     1995     1991     1995

SUMMARY STATISTICS           FOR 1997 CALENDAR YEAR        FOR 1998 WATER YEAR           WATER YEARS 1974 - 1998

ANNUAL TOTAL                      738376                     655163
ANNUAL MEAN                         2023                       1795                       2044
HIGHEST ANNUAL MEAN                                                                       2459              1997
LOWEST ANNUAL MEAN                                                                        1349              1995
HIGHEST DAILY MEAN                 10100     Mar  1           16100     Jan 10           18100       Feb 21 1981
LOWEST DAILY MEAN                    108     Aug 12              81     Sep 24,27           60       Sep 15 1991
ANNUAL SEVEN-DAY MINIMUM             130     Aug  8              83     Sep 23              67       Sep  7 1995
INSTANTANEOUS PEAK FLOW                                       16200     Jan 10           18400       Feb 21 1981
INSTANTANEOUS PEAK STAGE                                         10.98  Jan 10              11.64    Feb 21 1981
ANNUAL RUNOFF (CFSM)                   1.97                       1.75                       1.99
ANNUAL RUNOFF (INCHES)                26.72                      23.71                      27.01
10 PERCENT EXCEEDS                  4850                       3980                       4600
50 PERCENT EXCEEDS                  1530                       1290                       1390
90 PERCENT EXCEEDS                   227                        111                        258

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1933 - 1973, BY WATER YEAR (WY)  (PRIOR TO REGULATION)

          OCT      NOV      DEC      JAN      FEB      MAR      APR      MAY      JUN      JUL      AUG      SEP

MEAN      695     1506     2238     2590     2713     3915     3147     1684      953      555      408      440
MAX      3744     3983     4471     7284     5894     7359     6688     4160     3717     2015     1907     2148
(WY)     1946     1971     1951     1937     1938     1964     1947     1956     1947     1967     1956     1958
MIN      69.5      183      227      403      523     1768      575      349      124     77.1     77.8     80.4
(WY)     1964     1954     1961     1961     1934     1937     1946     1934     1934     1934     1954     1954

SUMMARY STATISTICS           WATER YEARS 1933 - 1973

ANNUAL MEAN                   1751
HIGHEST ANNUAL MEAN           2539              1956
LOWEST ANNUAL MEAN            1146              1934
HIGHEST DAILY MEAN           23000       Mar  6 1964
LOWEST DAILY MEAN               45       Sep  1 1933
ANNUAL SEVEN-DAY MINIMUM        48       Aug 27 1933
INSTANTANEOUS PEAK FLOW      23800       Mar  7 1964
INSTANTANEOUS PEAK STAGE       a13.2     Mar  7 1964
INSTANTANEOUS LOW FLOW          43       Jul 30 1934
ANNUAL RUNOFF (CFSM)             1.70
ANNUAL RUNOFF (INCHES)          23.15
10 PERCENT EXCEEDS            4370
50 PERCENT EXCEEDS             940
90 PERCENT EXCEEDS             147

   a  From floodmark in gage well.

                                                FRENCH CREEK BASIN

                                  03024000  FRENCH CREEK AT UTICA, PA--Continued
                                   (National Water-Quality Assessment station)

                                              WATER-QUALITY RECORDS

PERIOD OF RECORD.--February to October 1956, October 1959 to May 1973, December 1975 to August 1978, April 1996
   to September 1998 (discontinued).

PERIOD OF DAILY RECORD.--
   WATER TEMPERATURE:  October 1996 to September 1998.
   SUSPENDED SEDIMENT DISCHARGE:  October 1971 to September 1972.

INSTRUMENTATION.--Suspended-sediment samples were collected daily and more often during storm events
   by an observer from October 1971 to September 1972.  Water temperature was measured and collected at hourly  	
   intervals using an in-situ probe with an electronic data logger from October 1996 to September 1998.

REMARKS.--All water-quality samples were collected and analyzed by the U.S. Geological Survey.  Interruptions
   in the daily records were due to malfunctions of the equipment. Water temperature data from the in-situ probes
   oftentimes did not exactly agree with the water temperature of the monthly and storm samples because of the
   fixed location of the in-situ temperature probes. Additional sites in the (NAWQA) fixed-station network are
   shown in figure 6 on page 28.  An explanation of selected abbreviations used in the water-quality tables are
   given on pages 29-31.

EXTREMES FOR PERIOD OF DAILY RECORD.--
   WATER TEMPERATURE: Maximum, 28.0`C,June 25, 26 1998; minimum, 0.0`C, November 19, December 31, 1997,
   January 1, 2, 1998.
   SEDIMENT CONCENTRATIONS:  Maximum daily, 404 µg/L, June 24, 1972; minimum daily, 3 µg/L on several days during
   February 1972.
   SEDIMENT DISCHARGES:  Maximum daily, 10400 tons, June 24, 1972; minimum daily, 3.5 tons, September 11, 1972.

EXTREMES FOR CURRENT YEAR.--
   WATER TEMPERATURE:  Maximum, 28.0`C,June 25, 26 ; minimum, 0.0`C, November 19, December 31, January 1,2.


                          WATER-QUALITY DATA, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998

                         DIS-              PH               BARO-
                       CHARGE,   SPE-     WATER             METRIC            HARD-             MAGNE-
                        INST.    CIFIC    WHOLE             PRES-             NESS    CALCIUM    SIUM,  SODIUM,
                        CUBIC    CON-     FIELD   TEMPER-    SURE   OXYGEN,   TOTAL    DIS-      DIS-    DIS-
                         FEET    DUCT-   (STAND-   ATURE     (MM      DIS-    (MG/L    SOLVED   SOLVED  SOLVED
      DATE      TIME     PER     ANCE      ARD     WATER      OF     SOLVED    AS      (MG/L    (MG/L    (MG/L
                        SECOND  (µS/CM)   UNITS)  (DEG C)    HG)     (MG/L)   CACO3)   AS CA)   AS MG)   AS NA)
                       (00061)  (00095)  (00400)  (00010)  (00025)  (00300)  (00900)  (00915)  (00925)  (00930)

  OCT
    29...       1100    2130      225      7.6      6.0      732     11.5       87     26        5.3      7.2
  NOV
    18...       1255    1180      268      7.6      1.0      736     14.5       92     28        5.4     10
  DEC
    15...       1250    2640      216      7.3      1.0      732     13.7       75     23        4.5      7.8
  JAN
    09...       1450   15400      112      7.3      6.5      723     10.9       36     11        2.3      4.4
    26...       1055    2390      233      7.7      1.5      738     13.7       80     25        4.6      8.5
  FEB
    25...       0840    2000      194      7.6      4.0      730     11.5       73     22        4.0      6.8
  MAR
    18...       1020    2000      242      7.6      4.0      733     13.2       83     25        4.8     12
  APR
    17...       0945    7070      147      7.3     12.0      725      9.1       56     17        3.2      5.9
    30...       0930    2930      176      7.5     13.0      745      8.3       74     23        4.2      5.7
  MAY
    15...       1030    1470      200      8.1     19.0      749      9.4       86     26        4.9      7.0
  JUN
    24...       1015     281      286      7.8     24.0      747      9.0      120     36        6.8     11
  JUL
    28...       1015     188      325      8.0     23.0      743      7.4      130     40        7.9     12
  AUG
    28...       1045     113      338      8.0     23.0      746      7.5      140     40        8.3     16
  SEP
    10...       0945     122      341      8.0     16.5      747      7.9      130     38        8.1     16

                                                FRENCH CREEK BASIN

                                    03024000  FRENCH CREEK AT UTICA--Continued


                          WATER-QUALITY DATA, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998

                        ALKA-                                       SOLIDS,   NITRO-   NITRO-   NITRO-   NITRO-
               POTAS-  LINITY             CHLO-    FLUO-   SILICA,  RESIDUE    GEN,     GEN,     GEN,   GEN,AM-
                SIUM,  WAT DIS  SULFATE   RIDE,    RIDE,    DIS-    AT 180   NITRITE  NO2+NO3  AMMONIA  MONIA +
                DIS-   TOT IT    DIS-     DIS-      DIS-    SOLVED   DEG. C    DIS-     DIS-     DIS-   ORGANIC
               SOLVED   FIELD    SOLVED   SOLVED   SOLVED   (MG/L     DIS-    SOLVED   SOLVED   SOLVED   TOTAL
      DATE     (MG/L   MG/L AS   (MG/L    (MG/L    (MG/L     AS      SOLVED   (MG/L    (MG/L    (MG/L    (MG/L
               AS K)    CACO3   AS SO4)   AS CL)   AS F)    SIO2)    (MG/L)   AS N)    AS N)    AS N)    AS N)
              (00935)  (39086)  (00945)  (00940)  (00950)  (00955)  (70300)  (00613)  (00631)  (00608)  (00625)

  OCT
    29...      2.3        48      15      15       <.10     4.2       129      .011     .726     .020     .59
  NOV
    18...      1.6        68      16      20       <.10     3.7       147     <.010     .491     .287     .27
  DEC
    15...      1.5        48      15      16       <.10     4.5       113     <.010     .770    <.020     .28
  JAN
    09...      1.9        22       9.5     8.1     <.10     3.9        86     <.010     .558    <.020     .58
    26...      1.4        60      14      16       <.10     4.6       130     <.010     .968     .045     .24
  FEB
    25...      1.3        53      14      13       <.10     3.6       113     <.010     .666     .025     .28
  MAR
    18...      1.3        56      14      21       <.10     2.9       130      .017     .849     .052     .24
  APR
    17...      1.3        38      10       9.4     <.10     3.4        91     <.010     .476     .052     .74
    30...      1.1        54      11      10       <.10     3.1       104     <.010     .426     .080     .29
  MAY
    15...      1.2        70      12      11        .10     3.0       121      .017     .660     .042     .33
  JUN
    24...      1.7       106      14      18       <.10     1.4       171      .011     .390    <.020     .37
  JUL
    28...      1.9       112      16      20       <.10     1.9       186      .012     .325     .045     .36
  AUG
    28...      2.5       111      17      25       <.10     2.0       185      .012     .473     .038     .35
  SEP
    10...      2.6       110      18      26       <.10     1.8       193      .011     .378     .044     .34



               NITRO-                     PHOS-                              CARBON,             SED.
              GEN,AM-            PHOS-   PHORUS             MANGA-  CARBON,  ORGANIC             SUSP.
              MONIA +   PHOS-   PHORUS    ORTHO,   IRON,    NESE,   ORGANIC   SUS-     SEDI-    SIEVE
              ORGANIC  PHORUS     DIS-    DIS-      DIS-     DIS-    DIS-    PENDED    MENT,     DIAM.
               DIS.     TOTAL    SOLVED  SOLVED    SOLVED   SOLVED  SOLVED    TOTAL    SUS-    % FINER
      DATE     (MG/L    (MG/L    (MG/L   (MG/L     (µG/L    (µG/L    (MG/L    (MG/L    PENDED    THAN
               AS N)    AS P)    AS P)   AS P)     AS FE)   AS MN)   AS C)    AS C)    (MG/L)  .062 MM
              (00623)  (00665)  (00666)  (00671)  (01046)  (01056)  (00681)  (00689)  (80154)  (70331)

  OCT
    29...       .33      .064    <.010     .010     55       10       4.8      1.1       39      89
  NOV
    18...       .21      .022     .014    <.010     88       22       3.5       .20       5      80
  DEC
    15...       .22      .021     .027     .015     68       24       3.0       .30       9      91
  JAN
    09...       .26      .121    <.010     .014     96       38       4.1      1.3      113      88
    26...       .21     <.010    <.010     .011     65       31       2.6       .40       8      85
  FEB
    25...       .20      .027     .012     .021     79       19       2.3       .30      11      87
  MAR
    18...       .28      .014    <.010    <.010     97       30       2.3       .40       8      65
  APR
    17...       .29      .138     .016     .012     81       14       4.2      2.4       99      80
    30...       .20      .016    <.010    <.010     96       16       3.4       .50      17      78
  MAY
    15...       .23      .017     .060    <.010    160       18       3.8       .40       9      81
  JUN
    24...       .16     <.010    <.010    <.010     40       22       3.1       .30       8      87
  JUL
    28...       .26      .054     .031     .024     28       28       2.8       .40       5      59
  AUG
    28...       .29      .027     .025     .028     21       23       3.3       .30       3      67
  SEP
    10...       .29      .034     .022     .023     18       14       2.7       .20       4      53

                                                FRENCH CREEK BASIN

                                  03024000  FRENCH CREEK AT UTICA, PA--Continued

REMARKS.--The following data are for dissolved trace elements in surface water filtered through a 0.45mm filter.


                          WATER-QUALITY DATA, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998

                              DIS-
                            CHARGE,   ALUM-    ANTI-                      BERYL-            CHRO-
                             INST.    INUM,    MONY,   ARSENIC  BARIUM,   LIUM,   CADMIUM   MIUM,   COBALT,
                             CUBIC     DIS-     DIS-     DIS-    DIS-     DIS-      DIS-    DIS-     DIS-
                              FEET    SOLVED   SOLVED   SOLVED  SOLVED    SOLVED   SOLVED   SOLVED  SOLVED
           DATE      TIME     PER     (µG/L    (µG/L    (µG/L    (µG/L    (µG/L    (µG/L    (µG/L    (µG/L
                             SECOND   AS AL)   AS SB)   AS AS)   AS BA)   AS BE)   AS CD)   AS CR)   AS CO)
                            (00061)  (01106)  (01095)  (01000)  (01005)  (01010)  (01025)  (01030)  (01035)

       SEP
         10...       0945    122        5.9    <1.0       2        39     <1.0     <1.0      1.3     <1.0




                                     MANGA-   MOLYB-            SELE-            URANIUM
                   COPPER,   LEAD,    NESE,    DENUM,  NICKEL,   NIUM,   SILVER,  NATURAL   ZINC,
                    DIS-      DIS-     DIS-     DIS-    DIS-      DIS-     DIS-     DIS-     DIS-
                    SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED
           DATE     (µG/L    (µG/L    (µG/L    (µG/L    (µG/L    (µG/L    (µG/L    (µG/L    (µG/L
                    AS CU)   AS PB)   AS MN)   AS MO)   AS NI)   AS SE)   AS AG)   AS U)    AS ZN)
                   (01040)  (01049)  (01056)  (01060)  (01065)  (01145)  (01075)  (22703)  (01090)

       SEP
         10...       1.1     <1.0      14       2.3     <1.0      <1      <1.0     <1.0      4.1

                                                FRENCH CREEK BASIN

                                  03024000  FRENCH CREEK AT UTICA, PA--Continued


                  WATER TEMPERATURE, DEGREES CELSIUS, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998

 DAY      MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN

                OCTOBER                 NOVEMBER                  DECEMBER                    JANUARY

   1     15.5    14.0    14.5       7.5     6.0     7.0       4.5     4.0     4.5        .0      .0      .0
   2     14.0    13.0    13.5       8.0     7.5     7.5       4.0     3.5     4.0        .5      .0      .0
   3     14.5    13.0    13.5       8.0     7.5     7.5       3.5     3.0     3.0       2.0      .5     1.0
   4     15.5    13.0    14.5       7.5     7.0     7.5       4.0     3.0     4.0       3.5     2.0     3.0
   5     17.0    15.0    16.0       7.5     6.5     7.0       4.0     3.0     3.5       4.0     3.5     3.5

   6     18.0    16.0    17.0       7.0     6.0     6.5       3.0     1.5     2.5       5.0     4.0     4.5
   7     18.5    16.5    17.5       6.5     6.0     6.5       1.5      .5     1.0       6.0     5.0     5.0
   8     19.0    17.0    18.0       6.5     6.5     6.5       1.0      .5     1.0       6.5     6.0     6.5
   9     19.0    17.5    18.5       7.0     6.5     7.0       1.5      .5     1.0       6.0     5.5     6.0
  10     19.0    17.0    18.0       7.0     6.5     7.0       1.5     1.0     1.5       5.5     4.5     5.0

  11     17.5    16.0    16.5       6.5     6.0     6.0       1.5     1.5     1.5       4.5     3.0     3.5
  12     16.5    14.5    15.5       6.0     5.0     5.5       1.5     1.0     1.0       3.0     2.5     2.5
  13     17.0    14.5    16.0       5.0     3.5     4.0       1.0      .5     1.0       3.0     2.5     2.5
  14     16.5    14.5    16.0       3.5     2.5     3.0        .5      .5      .5       2.5     1.5     2.0
  15     15.0    13.5    14.0       3.0     2.5     3.0        .5      .5      .5       1.5     1.5     1.5

  16     13.5    12.0    13.0       3.0     2.0     2.5       1.0      .5      .5       2.0     1.5     1.5
  17     12.5    11.0    11.5       2.0     1.0     1.5       1.0      .5     1.0       2.0     1.5     1.5
  18     12.0    10.0    11.0       1.0      .5      .5       1.5      .5     1.0       1.5     1.5     1.5
  19     12.0    10.0    11.0       1.5      .0     1.0       2.0     1.0     1.5       1.5     1.0     1.5
  20     11.0    10.0    10.5       2.5     1.5     2.0       2.5     1.5     2.0       1.5      .5     1.0

  21     11.0    10.0    10.5       3.5     2.0     3.0       2.5     1.5     2.0        .5      .5      .5
  22     10.0     8.0     9.0       4.0     3.5     3.5       1.5     1.5     1.5       1.0      .5     1.0
  23      8.5     7.5     8.0       4.0     3.5     4.0       2.0     1.5     1.5       1.0      .5     1.0
  24      8.5     7.5     8.0       3.5     2.5     3.0       2.0     1.5     1.5       1.5     1.0     1.5
  25      8.5     8.0     8.0       2.5     1.5     2.0       2.5     2.0     2.5       1.0     1.0     1.0

  26      8.0     7.5     7.5       2.5     1.5     2.0       2.5     2.0     2.5       1.5     1.0     1.0
  27      8.0     6.5     7.5       3.0     2.5     3.0       2.0     1.5     2.0       1.5     1.0     1.5
  28      6.5     6.0     6.5       4.0     3.0     3.5       1.5     1.0     1.5       2.5     1.5     2.0
  29      6.5     5.5     6.0       4.0     4.0     4.0       1.0      .5      .5       2.5     1.5     2.0
  30      6.5     5.5     6.0       5.0     4.0     4.5        .5      .5      .5       2.5     2.0     2.0
  31      7.5     5.5     6.5       ---     ---     ---        .5      .0      .0       2.0     1.5     1.5

 MONTH   19.0     5.5    12.2       8.0      .0     4.4       4.5      .0     1.7       6.5      .0     2.2

                                                FRENCH CREEK BASIN

                                  03024000  FRENCH CREEK AT UTICA, PA--Continued


                  WATER TEMPERATURE, DEGREES CELSIUS, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998

 DAY      MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN

               FEBRUARY                   MARCH                     APRIL                       MAY

   1      1.5     1.0     1.5       6.0     5.0     5.5      15.0    14.0    14.5      13.5    12.5    13.0
   2      2.0     1.0     1.5       5.5     5.0     5.5      14.0    12.0    13.5      13.5    13.0    13.0
   3      2.5     1.5     2.0       5.0     4.0     4.5      12.0    10.5    11.5      14.0    13.0    13.5
   4      2.0     1.5     2.0       4.5     3.5     4.0      10.5     9.0    10.0      14.5    13.5    14.0
   5      2.5     1.5     2.0       4.0     3.5     3.5      10.5     8.5     9.5      14.5    14.0    14.0

   6      2.0      .5     1.5       5.0     3.5     4.0      10.5     8.5     9.0      15.0    14.5    14.5
   7      2.5      .5     1.5       5.0     3.5     4.0      11.0     8.0     9.5      16.5    15.0    16.0
   8      2.5      .5     1.5       5.0     3.5     4.5      12.5     9.0    10.5      16.5    15.5    16.0
   9      3.0     1.0     2.0       6.0     4.5     5.5      11.5    10.0    10.5      17.0    15.5    16.5
  10      3.5     1.5     2.5       5.5     3.0     4.5      10.0     9.0     9.5      17.5    16.0    17.0

  11      3.5     2.5     3.0       3.0     1.5     3.0       9.5     8.0     9.0      16.5    15.5    16.0
  12      3.5     3.0     3.5       2.0     1.0     1.5      10.0     8.5     9.5      17.0    15.5    16.0
  13      3.0     2.5     3.0       2.0      .5     1.0      11.0    10.0    10.5      18.0    16.0    16.5
  14      3.0     2.0     2.5       1.5      .5     1.0      12.0    10.5    11.5      19.5    16.5    18.0
  15      2.0     1.0     1.5       2.0      .5     1.0      12.5    11.0    11.5      21.5    17.5    19.5

  16      2.0      .5     1.5       3.0     1.0     2.0      12.0    11.5    12.0      22.0    18.5    20.5
  17      3.0     1.5     2.0       4.0     1.0     2.5      12.0    11.5    12.0      22.0    19.0    20.5
  18      3.5     3.0     3.0       4.0     3.0     3.5      11.5    10.5    11.0      22.5    19.0    20.5
  19      3.5     3.5     3.5       4.0     3.5     4.0      11.5    10.0    11.0      23.0    19.5    21.5
  20      3.5     3.5     3.5       4.0     3.5     4.0      10.0     9.0    10.0      24.0    20.5    22.0

  21      3.5     3.0     3.5       4.0     3.5     4.0      11.5     9.5    10.5      22.0    20.0    21.0
  22      3.5     3.0     3.0       3.5     2.5     3.0      12.0    11.0    11.5      20.5    18.0    19.5
  23      4.0     3.0     3.5       3.0     2.0     2.5      12.5    11.5    12.0      20.5    16.5    18.5
  24      4.5     3.5     4.0       3.5     3.0     3.0      12.5    12.0    12.5      19.0    16.5    18.0
  25      4.0     3.5     4.0       4.0     3.0     3.5      13.0    12.5    12.5      18.5    17.5    18.0

  26      5.0     3.5     4.0       6.5     4.0     6.0      13.0    10.5    12.0      20.5    17.0    18.5
  27      5.0     4.0     4.5       9.0     6.5     8.0      11.0    10.0    10.5      21.5    17.0    19.5
  28      5.0     4.0     4.5      11.0     9.0    10.0      11.5    10.5    11.0      22.0    18.0    20.5
  29      ---     ---     ---      12.5    10.5    11.5      12.0    11.5    12.0      23.0    20.0    22.0
  30      ---     ---     ---      13.5    12.0    13.0      12.5    12.0    12.5      24.5    21.0    23.0
  31      ---     ---     ---      15.0    13.5    14.0       ---     ---     ---      23.5    21.5    22.5

 MONTH    5.0      .5     2.7      15.0      .5     4.8      15.0     8.0    11.1      24.5    12.5    18.0

                                                FRENCH CREEK BASIN

                                       FRENCH CREEK AT UTICA, PA--Continued


                  WATER TEMPERATURE, DEGREES CELSIUS, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998

 DAY      MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN       MAX     MIN    MEAN

                 JUNE                     JULY                     AUGUST                    SEPTEMBER

   1     22.0    19.5    21.0      25.5    22.0    24.0      24.5    20.5    23.0      24.0    21.0    22.5
   2     22.0    19.0    20.5      25.0    21.5    23.5      24.5    21.0    23.0      23.5    21.0    22.0
   3     20.0    17.5    19.0      25.5    21.5    23.5      25.5    21.5    23.5      21.5    18.5    20.0
   4     20.0    16.5    18.5      25.5    22.5    23.5      25.0    22.0    23.5      22.0    18.5    20.5
   5     18.0    16.5    17.5      25.0    21.0    22.5      25.0    23.0    24.0      22.5    18.5    20.5

   6     17.0    15.0    16.0      25.5    21.5    23.5      25.5    22.5    24.0      23.5    19.5    21.5
   7     16.5    15.0    15.5      25.0    22.5    23.5      26.5    23.0    25.0      23.5    21.0    22.0
   8     17.5    14.5    16.0      25.0    22.5    23.5      27.0    23.5    25.5      21.0    17.5    19.0
   9     16.5    15.0    16.0      25.5    22.5    24.0      27.0    24.5    26.0      17.5    16.0    17.0
  10     16.0    15.0    15.5      25.5    22.5    24.0      27.0    24.0    25.0      18.5    15.5    17.0

  11     17.5    15.0    16.5      25.0    21.0    23.0      25.5    23.0    24.0      20.0    16.0    18.0
  12     20.0    17.0    18.5      25.0    21.0    23.0      25.0    23.0    24.5      21.5    17.5    19.5
  13     19.5    18.0    19.0      26.0    21.5    24.0      25.5    22.0    24.0      22.5    19.0    20.5
  14     19.0    18.0    18.5      26.0    22.5    24.5      25.0    22.5    24.0      23.0    20.0    21.5
  15     19.0    17.5    18.0      26.0    23.0    24.5      26.0    23.0    24.5      23.0    21.0    22.0

  16     20.5    17.5    19.0      27.0    23.5    25.0      27.0    23.5    25.0      23.0    21.5    22.5
  17     21.0    18.5    19.5      27.0    24.5    25.5      26.5    24.5    25.5      23.0    21.0    22.0
  18     23.0    19.0    21.0      26.0    22.0    24.0      26.0    23.5    24.0      22.5    19.0    21.0
  19     22.0    20.5    21.5      25.5    22.0    24.0      23.5    20.5    22.5      23.0    20.0    21.5
  20     24.0    20.5    22.5      26.0    24.0    25.0      23.5    20.0    22.0      23.5    21.0    22.5

  21     25.5    21.0    23.5      26.0    23.5    24.5      24.0    21.0    22.5      23.5    21.5    22.5
  22     25.5    22.5    24.0      26.0    23.5    25.0      25.0    22.5    23.5      23.0    20.5    22.0
  23     25.0    23.0    24.0      26.0    24.0    25.0      26.0    22.5    24.5      20.5    17.5    18.5
  24      ---     ---     ---      25.5    22.5    24.0      25.5    23.0    24.5      18.0    15.0    16.5
  25     28.0    24.5    26.5      24.5    21.5    23.5      24.5    22.5    23.0      18.5    16.5    17.5

  26     28.0    25.5    26.5      25.0    21.5    23.5      25.0    22.0    23.5      21.0    17.5    19.0
  27     27.5    25.0    26.0      25.0    21.5    23.0      25.0    22.0    23.5      22.0    19.5    20.5
  28     27.0    24.5    25.5      25.5    22.0    24.0      25.5    22.0    24.0      21.5    19.5    20.5
  29     27.0    24.5    26.0      26.0    23.5    24.5      25.5    23.0    24.0      19.5    16.5    18.0
  30     27.0    24.5    25.5      25.5    22.0    24.0      25.0    22.0    23.5      19.5    17.0    18.0
  31      ---     ---     ---      24.5    21.5    23.5      24.5    22.5    24.0       ---     ---     ---

 MONTH   28.0    14.5    20.6      27.0    21.0    24.0      27.0    20.0    24.0      24.0    15.0    20.2



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