Stonycreek River at Ferndale, PA

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

--------
                                             KISKIMINETAS RIVER BASIN

                                    03040000  STONYCREEK RIVER AT FERNDALE, PA
                                   (National water-quality assessment station)

LOCATION.--Lat 40`17'08", long 78`55'15", Cambria County, Hydrologic unit 05010007, on right bank 50 ft upstream
   from highway bridge at Ferndale, 0.4 mi downstream from Bens Creek, 1.2 mi upstream from Johnstown city limits,
   and 5.2 mi upstream from confluence with Little Conemaugh River.

DRAINAGE AREA.--451 mi2.

                                             WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--October 1913 to March 1936, October 1938 to current year.  Monthly discharge only for some
   periods, published in WSP 1305.  Monthly figures adjusted for storage and diversion for October 1918 to
   September 1921, published in WSP 503, 523, have been found in error and should not be used.  Published as "at
   Johnstown" 1914-36, and as "Stony Creek at Ferndale" 1938-79.  Gage-height records collected in this vicinity
   since 1885 are contained in reports of U.S. Weather Bureau.

REVISED RECORDS.--WSP 743:   Drainage area.  WSP 1305:   1915, 1918, 1923-26.  WSP 1435:   1920-21, 1932,
   1941 (M), 1943 (M), 1945-46 (M).  WDR PA-78-3:   1977 (M).  See also PERIOD OF RECORD.

GAGE.--Water-stage recorder.  Datum of gage is 1,184.06 ft above sea level.  Prior to Mar. 19, 1936, nonrecording
   gage at site 3.5 mi downstream at different datum.  Dec. 8, 1938 to Jan. 30, 1940, nonrecording gage at site
   50 ft downstream at present datum.

REMARKS.--Records good except for estimated daily discharges, which are fair.  Regulation by mine pumpage and
   reservoirs and diversion above station; the four largest reservoirs have a combined capacity of 42,360 acre-ft.
   Figures of daily discharge do not include diversion from Stonycreek River and Quemahoning Creek Reservoir to
   plants of Bethlehem Steel Co., and from Mill Creek, Dalton Run, and North Fork Bens Creek Reservoirs for water
   supply of city of Johnstown.  Several measurements of water temperature were made during the year.  U.S. Army
   Corps of Engineers satellite telemeter at station.


                  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       461      299     2310     e520      741     4180     1230      871     1460      571      194      155
  2       446     1130     1740     e470      692     2970     1230      946      815      425      155      116
  3       387      797     1410     e490      650     2590      915      913      670      340      143      104
  4       374      521     1290     e540      658     2040      826      881      551      292      132       94
  5       355      434     1180     e610      832     1690      768     1530      410      289      123       87

  6       338      398     1050     e740     1010     1440      681     4120      358      265      114       82
  7       309     2440      949    e1000      927     1320      613     2270      316      241      109      101
  8       140     9990      880     3890      806     1840      612     2600      298      471      103      137
  9       107     4790      797     4210      736     3630     1150     2450      270      611      114      117
 10       106     2680      836     2690      706     3510     4750     1890      282      423      193      113

 11       104     1880     1280     1920      807     2350     3010     1600      283      299      217      101
 12       101     1450     1320     1510     1750     1760     1850     2100      480      249      149       85
 13        98     1210     1070     1320     1940     1450     1400     1920      656      227      125       81
 14        98     1280      899     1160     1430     1290     1200     1570     1020      206      114       78
 15        96     1470      770     1030     1110     1110     1210     1310      689      204      133       74

 16       100     1330      692     1000      983      961     1020     1120      661      241      270       75
 17       100     1170      648      965     1200      857      903     1020      819      246      201       80
 18       112     1100      594      892     3450      932      792      853     1030      204      206       79
 19       104      995      553      776     4320     1360     1630      747     2280      180      174       79
 20        86      950      537      683     3310     1230     3270      629     3460      176      137       80

 21        76      966      519      598     2890     2140     2100      537     1700      175      120       91
 22        75     1560      501      574     2280     2120     1560      476     1190      240      111      110
 23        74     1600      567      753     1940     1620     1290      437      960      237      107       97
 24        78     1310      684     1190     1790     1420     1100      399      800      276      108       85
 25       161     1160     1060     1020     1510     1270      948      438      644      207      131       82

 26       171      995     1120      842     1430     1160     1050      386      547      180      139      101
 27       185      997      975      753     1540     1070     1710      345      499      170      121      134
 28       164     1420      865      754     2860     1010     1220      312      458      157      108      138
 29       128     2000      767      743      ---      931     1000      296      450      143       99      132
 30       114     1780     e680      930      ---      847      911      311      435      143       98      128
 31       104      ---     e580      891      ---      760      ---      329      ---      238      253      ---

TOTAL    5352    50102    29123    35464    44298    52858    41949    35606    24491     8326     4501     3016
MEAN      173     1670      939     1144     1582     1705     1398     1149      816      269      145      101
MAX       461     9990     2310     4210     4320     4180     4750     4120     3460      611      270      155
MIN        74      299      501      470      650      760      612      296      270      143       98       74
CFSM      .38     3.70     2.08     2.54     3.51     3.78     3.10     2.55     1.81      .60      .32      .22
IN.       .44     4.13     2.40     2.93     3.65     4.36     3.46     2.94     2.02      .69      .37      .25

   e  Estimated.
                                             KISKIMINETAS RIVER BASIN

                              03040000  STONYCREEK RIVER AT FERNDALE, PA--Continued

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1939 - 1998, BY WATER YEAR (WY)

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

MEAN      245      427      691      775     1043     1622     1346      837      505      265      179      189
MAX      1514     2099     2162     1929     2575     3581     3426     1792     1773      874     1098     1449
(WY)     1977     1986     1973     1952     1986     1994     1993     1978     1972     1977     1979     1996
MIN      13.6     20.4     48.4      137      262      367      336      186     77.4     28.4     26.3     18.9
(WY)     1964     1954     1954     1977     1963     1990     1946     1941     1965     1965     1957     1943

SUMMARY STATISTICS           FOR 1997 CALENDAR YEAR        FOR 1998 WATER YEAR           WATER YEARS 1939 - 1998

ANNUAL TOTAL                      289743                     335086
ANNUAL MEAN                          794                        918                        677
HIGHEST ANNUAL MEAN                                                                       1044              1996
LOWEST ANNUAL MEAN                                                                         280              1954
HIGHEST DAILY MEAN                  9990     Nov  8            9990     Nov  8           15900       Jun 23 1972
LOWEST DAILY MEAN                     74     Oct 23              74     Oct 23a             11       Sep 26 1959
ANNUAL SEVEN-DAY MINIMUM              86     Oct 18              78     Sep 14              12       Oct  5 1963
INSTANTANEOUS PEAK FLOW                                       13300     Nov  8          b59000       Mar 18 1936
INSTANTANEOUS PEAK STAGE                                         10.86  Nov  8             c30.26    Mar 18 1936
INSTANTANEOUS LOW FLOW                                           70     Oct 23,24           d5.0     Sep  8 1929
ANNUAL RUNOFF (CFSM)                   1.76                       2.04                       1.50
ANNUAL RUNOFF (INCHES)                23.90                      27.64                      20.41
10 PERCENT EXCEEDS                  1750                       1940                       1610
50 PERCENT EXCEEDS                   459                        692                        333
90 PERCENT EXCEEDS                   121                        104                         58

   a  Also Sept. 15.
   b  From rating curve extended above 13,000 ft3/s on the basis of slope-area and contracted-opening measurement
         of peak flow.
   c  From highwater mark, site and datum then in use.
   d  Minimum observed.
                                             KISKIMINETAS RIVER BASIN

                              03040000  STONYCREEK RIVER AT FERNDALE, PA--Continued
                                   (National Water-Quality Assessment station)

                                              WATER-QUALITY RECORDS

PERIOD OF RECORD.--October 1975 to September 1981, September 1992 to May 1994, April 1996 to September 1998
   (discontinued).

PERIOD OF DAILY RECORD.--
   SPECIFIC CONDUCTANCE:  July 1997 to September 1997, March 1998 to September 1998.
   pH:  July 1997 to September 1997, March 1998 to September 1998.
   WATER TEMPERATURE:  January 1978 to September 1979, November 1996 to September 1998.
   SUSPENDED SEDIMENT DISCHARGE:  February 1977 to September 1979.

INSTRUMENTATION.--From January 1978 to September 1979, water temperatures were once daily readings by an observer
   and suspended sediment samples were collected daily and more often during storm events by an observer.  From
   November 1996 to current year, daily records of water temperature, specific conductance and pH were measured
   and collected at hourly intervals with in-situ probes and electronic data loggers.

REMARKS.--All water-quality samples were collected and analyzed by the U.S. Geological Survey.  Interruptions in
   the daily record were due to frozen river conditions or malfunctions of the equipment.  Water temperature,
   specific conductance, and pH data from the in-situ probes often times did not exactly agree with the water
   temperature, specific conductance, and pH of the monthly and storm samples because of the fixed location of the
   in-situ 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 TEMPERATURES:  Maximum, 27.5`C, July 3, 1997; minimum, 0.0`C, many days during winter period.
   SEDIMENT CONCENTRATIONS:  Maximum daily, 2,800 µg/L, June 17, 1978; minimum daily, 2 µg/L,
   September 9, 10, 11, 1978.
   SEDIMENT DISCHARGES:  Maximum daily, 20,900 tons, March 5, 1979; minimum daily, 0.44 ton,
   September 10, 11, 1978


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

                     DIS-              PH               BARO-
                   CHARGE,   SPE-     WATER             METRIC            HARD-   ACIDITY            MAGNE-
                    INST.    CIFIC    WHOLE             PRES-             NESS    TOTAL    CALCIUM    SIUM,SODIUM,
                    CUBIC    CON-     FIELD   TEMPER-    SURE   OXYGEN,   TOTAL   HEATED    DIS-      DIS-    DIS-
                     FEET    DUCT-   (STAND-   ATURE     (MM      DIS-    (MG/L   (MG/L     SOLVED   SOLVED SOLVED
  DATE      TIME     PER     ANCE      ARD     WATER      OF     SOLVED    AS     AS        (MG/L    (MG/L   (MG/L
                    SECOND  (µS/CM)   UNITS)  (DEG C)    HG)     (MG/L)   CACO3)  CAC03)    AS CA)   AS MG) AS NA)
                   (00061)  (00095)  (00400)  (00010)  (00025)  (00300)  (00900)  (70508)  (00915)  (00925)
(00930)

 OCT
  08...     1000     125      645      6.5     19.0      733      9.4      260      7.6      70      22       22
 NOV
  08...     1640   10100      139      6.5      7.0      720     11.7       43      7.6      11       3.6      3.7
 DEC
  12...     0905    1380      330      7.0      3.5      450     11.4      110      4.6      28       9.8     11
 JAN
  09...     1600    4010      229      7.2      7.0      722     12.4       74      2.6      19       6.6      7.4
  21...     1150     602      417      7.1      1.0      733     14.3      170      7.2      42      15       11
 FEB
  26...     1100    1420      350      6.8      4.0      729     13.2      130      8.0      31      12       12
 MAR
  17...     0940     868      370      6.0      3.0      735     13.8      140     14        35      14        8.6
 APR
  14...     1035    1210      301      6.6     11.0      722      8.9      120      8.0      30      11        8.3
  20...     1550    3080      228      6.9      9.5      730     11.0       82      3.2      20       7.4      7.0
  27...     1615    1590      256      7.0     12.5      745     10.8       98      5.0      24       8.9      7.3
 MAY
  06...     1430    3550      188      7.0     14.0      739     10.2       68      3.8      18       5.9      5.3
  29...     1015     510      620      6.2     19.5      740      6.4      280     10        68      27       13
 JUN
  25...     1040     667      347      6.7     21.0      743      9.4      140      3.8      35      13        8.7
 JUL
  14...     1050     203      595      6.7     23.0      742      8.5      260     17.0      64      24       16
 AUG
  11...     1000     230      542      7.1     22.0      737      8.4      220      4.0      58      19       16
 SEP
  28...     1015     137      762      6.9     20.0      739      9.0      360      4.2      87      35       15


                                             KISKIMINETAS RIVER BASIN

                              03040000  STONYCREEK RIVER AT FERNDALE, PA--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
    08...       2.3       27     270      13         .17     5.3      404      .013     .793     .253      .38
  NOV
    08...       2.0        6      37       5.5      <.10     4.0       92      .013     .899     .030      .57
  DEC
    12...       1.7        9      97      17        <.10     5.6      189      .021    1.06      .068      .27
  JAN
    09...       1.7       10      61      12         .11     5.2      142      .010    1.07      .028      .30
    21...       1.6        5     160      13        <.10     6.4      269      .019     .863     .086      .16
  FEB
    26...       1.5        7     120      16        <.10     5.8      214     <.010     .890     .097      .22
  MAR
    17...       1.3        3     140      10        <.10     6.2      237     <.010     .777     .129      .19
  APR
    14...       1.4        6     110       9.6      <.10     5.7      191     <.010     .749     .121      .22
    20...       1.5        8      67       9.9      <.10     4.8      134      .013     .751     .088      .36
    27...       1.3        6      91       8.7      <.10     5.0      164     <.010     .611     .105      .26
  MAY
    06...       1.3        8      59       6.7       .10     4.8      134     <.010     .653     .054      .54
    29...       2.1        3     290       9.8      <.10     6.8      451      .019     .524     .198      .20
  JUN
    25...       1.5        9     130       8.4       .12     5.6      244      .010     .571     .196      .35
  JUL
    14...       2.0        3     260      11         .14     6.6      429      .016     .432     .336      .36
  AUG
    11...       2.8       17     220      12        <.10     6.9      362      .012     .719     .329      .57
  SEP
    28...       2.9        9     350      15         .11     5.8      483      .018     .598    1.12      1.2




               NITRO-                     PHOS-                                       CARBON,             SED.
              GEN,AM-            PHOS-   PHORUS    ALUM-             MANGA-  CARBON,  ORGANIC             SUSP.
              MONIA +   PHOS-   PHORUS    ORTHO,   INUM,    IRON,    NESE,   ORGANIC   SUS-     SEDI-    SIEVE
              ORGANIC  PHORUS     DIS-    DIS-      DIS-     DIS-     DIS-    DIS-    PENDED    MENT,     DIAM.
               DIS.     TOTAL    SOLVED  SOLVED    SOLVED   SOLVED   SOLVED  SOLVED    TOTAL    SUS-    % FINER
      DATE     (MG/L    (MG/L    (MG/L   (MG/L     (µG/L    (µG/L    (µG/L    (MG/L    (MG/L    PENDED    THAN
               AS N)    AS P)    AS P)   AS P)     AS AL)   AS FE)   AS MN)   AS C)    AS C)    (MG/L)  .062 MM
              (00623)  (00665)  (00666)  (00671)  (01106)  (01046)  (01056)  (00681)  (00689)  (80154)  (70331)

  OCT
    08...        .37    <.010     .017    <.010      28     240     1200       1.1       .20       4       86
  NOV
    08...        .28     .074    <.010     .012     118     100      377       4.3       .70      97       74
  DEC
    12...        .19     .012    <.010     .013      --     400      775       1.4       .70      14       96
  JAN
    09...        .18     .026    <.010    <.010      33     130      381       2.1       .70      23       82
    21...        .13    <.010    <.010    <.010      24     830     1070        .80      .20      12       98
  FEB
    26...       <.10    <.010    <.010    <.010      13     560      888        .90      .50      13       93
  MAR
    17...        .14    <.010    <.010    <.010     130     860     1060        .80      .40      12       98
  APR
    14...        .12     .026    <.010    <.010      16     340      739       1.2       .60      14       56
    20...        .16     .055    <.010    <.010      32      87      435       2.0       .50      21       66
    27...        .13    <.010    <.010    <.010      25     240      611       1.4       .90      19       80
  MAY
    06...        .20     .068    <.010    <.010      57      69      388       2.5      1.7      115       46
    29...        .17    <.010    <.010    <.010     112     320     1750        .80      .20       9       73
  JUN
    25...        .15    <.010    <.010     .011      38     120      804       1.1       .40       8       89
  JUL
    14...        .32    <.010    <.010     .017      98     340     1780        .90      .40       7       48
  AUG
    11...        .42     .043    <.010    <.010      43      46     1110       1.4      1.1       31       83
  SEP
    28...       1.3      .050    <.050    <.010      32     180     1860       1.3      1.3       16       63

                                             KISKIMINETAS RIVER BASIN

                                   03040000  STONYCREEK RIVER AT FERNDALE, PA.

REMARKS.--The following data are for dissolved trace elements in surface water filtered through a .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
     28...       1015     137       32     <1.0      <1       35      <1.0     <1.0     <1.0      49




                                    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
       28...       2.9     <1.0     1860     <1.0      79       <1      <1.0     <1.0      128



                                             KISKIMINETAS RIVER BASIN

                                   03040000  STONYCREEK RIVER AT FERNDALE, PA.

REMARKS.--The following data are for trace elements and other constituents that were part of the suspended-
   sediment fraction of the water sample.  Suspended sediments were dewatered using a continuous flow centrifuge,
   dried, and analyzed directly for total metals using a nitric, hydrofluoric, perchloric acid digestion.  Whole
   water contributions by the suspended sediment were then calculated using the suspended-sediment concentration
   in kilograms per liter (kg/L) and the analyte concentration in milligrams per kilogram (µg/kg) from the direct
   analysis of the suspended sediments, resulting in micrograms per gram (mG/G) concentrations.  Values reported
   in percent are the percent of that constituent in the suspended sediment.  When no trace element was detected
   in the sample, the default reporting value is the method detection limit preceded by a less-than sign (<).


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

                              DIS-
                            CHARGE,
                             INST.             AN-                       BERYL-             CHRO-
                             CUBIC   ALUM-    TIMONY   ARSENIC  BARIUM    LIUM    CADMIUM   MIUM
                              FEET   INUM      SED.     SED.     SED.     SED.     SED.     SED.
           DATE      TIME     PER    SED,SUS   SUSP.    SUSP.    SUSP.    SUSP.    SUSP.    SUSP.
                             SECOND  PERCENT  (mG/G)   (mG/G)   (mG/G)   (mG/G)   (mG/G)   (mG/G)
                            (00061)  (30221)  (29816)  (29818)  (29820)  (29822)  (29826)  (29829)

       APR
         20...       1550    3080      4.0       1       17       200       4        2       38




                   COBALT             IRON             LITHIUM   MAN-             MOLYB-
                    SEDI-   COPPER    SEDI-    LEAD     SEDI-   GANESE   MERCURY   DENUM   NICKEL
                    MENT     SED.     MENT     SED.     MENT     SED.     SED.     SED.     SED.
           DATE     SUSP.    SUSP.    SUSP.    SUSP.    SUSP.    SUSP.    SUSP.    SUSP.    SUSP.
                   (mG/G)   (mG/G)   PERCENT  (mG/G)   (mG/G)   (mG/G)   (mG/G)   (mG/G)   (mG/G)
                   (35031)  (29832)  (30269)  (29836)  (35050)  (29839)  (29841)  (29843)  (29845)

       APR
         20...       100      38       3.1      44       31      2800       0       <10      120




                    PHOS-                      STRON-            TITA-
                   PHORUS    SELE-             TIUM              NIUM    URANIUM   VANA-
                    SEDI-    NIUM    SILVER    SEDI-    THAL-    SEDI-    SEDI-    DIUM     ZINC
                    MENT     SED.     SED.     MENT     LIUM     MENT     MENT     SED.     SED.
           DATE     SUSP.    SUSP.    SUSP.    SUSP.   SUS SED   SUSP.    SUSP.    SUSP.    SUSP.
                   PERCENT  (mG/G)   (mG/G)   (mG/G)    (mG/G)  PERCENT  (mG/G)   (mG/G)   (mG/G)
                   (30292)  (29847)  (29850)  (35040)  (49955)  (30317)  (35046)  (29853)  (29855)

       APR
         20...       800       2       <1        63     <100       .16    <100       47      510


                                             KISKIMINETAS RIVER BASIN

                              03040000  STONYCREEK RIVER AT FERNDALE, PA--Continued


            SPECIFIC CONDUCTANCE,µS/CM @ 25 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      512     462     488       ---     ---     ---       ---     ---     ---       ---     ---     ---
   2      538     512     525       ---     ---     ---       ---     ---     ---       ---     ---     ---
   3      560     538     547       ---     ---     ---       ---     ---     ---       ---     ---     ---
   4      566     541     557       ---     ---     ---       ---     ---     ---       ---     ---     ---
   5      602     566     586       ---     ---     ---       ---     ---     ---       ---     ---     ---

   6      609     578     600       ---     ---     ---       ---     ---     ---       ---     ---     ---
   7      578     558     563       ---     ---     ---       ---     ---     ---       ---     ---     ---
   8      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
   9      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  10      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  11      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  12      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  13      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  14      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  15      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  16      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  17      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  18      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  19      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  20      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  21      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  22      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  23      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  24      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  25      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  26      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  27      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  28      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  29      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  30      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  31      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

 MONTH    609     462     552       ---     ---     ---       ---     ---     ---       ---     ---     ---

                                             KISKIMINETAS RIVER BASIN

                              03040000  STONYCREEK RIVER AT FERNDALE, PA--Continued


           SPECIFIC CONDUCTANCE, µS/CM @ 25 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      ---     ---     ---       ---     ---     ---       299     204     263       318     311     314
   2      ---     ---     ---       ---     ---     ---       227     192     208       316     305     310
   3      ---     ---     ---       ---     ---     ---       253     227     243       327     307     315
   4      ---     ---     ---       ---     ---     ---       270     248     260       330     316     325
   5      ---     ---     ---       ---     ---     ---       283     266     272       320     226     290

   6      ---     ---     ---       ---     ---     ---       290     279     286       ---     ---     ---
   7      ---     ---     ---       ---     ---     ---       295     275     284       214     190     203
   8      ---     ---     ---       ---     ---     ---       318     290     299       216     164     189
   9      ---     ---     ---       ---     ---     ---       293     189     271       201     168     182
  10      ---     ---     ---       ---     ---     ---       193      94     126       217     187     204

  11      ---     ---     ---       ---     ---     ---       114      99     106       226     208     218
  12      ---     ---     ---       ---     ---     ---       121     114     118       224     199     209
  13      ---     ---     ---       ---     ---     ---       127     121     124       224     199     211
  14      ---     ---     ---       ---     ---     ---       ---     ---     ---       242     207     222
  15      ---     ---     ---       ---     ---     ---       300     293     296       246     227     237

  16      ---     ---     ---       ---     ---     ---       321     299     309       273     239     251
  17      ---     ---     ---       ---     ---     ---       336     321     328       278     258     267
  18      ---     ---     ---       393     370     383       370     336     348       291     268     282
  19      ---     ---     ---       370     313     334       377     222     336       311     286     296
  20      ---     ---     ---       329     303     318       222     195     207       334     311     323

  21      ---     ---     ---       323     185     254       250     222     237       358     334     351
  22      ---     ---     ---       217     183     202       266     250     260       400     358     384
  23      ---     ---     ---       232     215     221       280     266     273       419     395     410
  24      ---     ---     ---       240     230     235       302     280     291       437     415     427
  25      ---     ---     ---       249     235     240       315     301     305       452     428     439

  26      ---     ---     ---       249     229     237       336     315     322       456     442     450
  27      ---     ---     ---       241     229     234       322     244     258       480     456     466
  28      ---     ---     ---       257     236     246       287     261     272       533     480     490
  29      ---     ---     ---       274     256     265       306     287     297       ---     ---     ---
  30      ---     ---     ---       282     266     274       313     306     309       632     588     608
  31      ---     ---     ---       280     271     275       ---     ---     ---       635     599     615

 MONTH    ---     ---     ---       393     183     266       377      94     259       635     164     322

                                             KISKIMINETAS RIVER BASIN

                              03040000  STONYCREEK RIVER AT FERNDALE, PA--Continued


           SPECIFIC CONDUCTANCE, µS/CM @ 25 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      676     273     393       393     351     364       624     587     604       583     564     573
   2      343     288     315       398     354     375       626     582     606       678     565     637
   3      414     315     353       425     398     417       674     619     651       727     570     685
   4      384     325     358       446     425     437       693     674     681       784     684     747
   5      404     374     382       460     444     453       719     681     705       790     701     745

   6      447     400     413       473     456     464       742     696     721       837     735     785
   7      448     425     436       496     460     483       757     730     742       829     689     774
   8      481     440     465       517     402     452       786     722     748       775     707     740
   9      484     455     461       419     313     364       769     686     735       772     650     733
  10      492     454     472       379     317     357       725     589     678       732     650     703

  11      467     444     452       424     378     409       675     541     614       734     670     706
  12      472     346     425       471     424     449       672     639     653       719     691     706
  13      350     277     323       513     471     496       726     668     700       738     684     712
  14      300     256     276       ---     ---     ---       765     700     729       771     717     742
  15      311     235     283       562     533     547       767     693     739       793     750     762

  16      338     282     304       550     526     538       718     506     584       854     781     799
  17      342     291     313       550     516     537       635     524     575       909     854     880
  18      339     257     288       550     516     535       623     581     606       956     906     933
  19      293     154     228       595     546     577       691     591     655      1000     927     956
  20      ---     ---     ---       609     568     588       717     659     690      1000     894     969

  21      ---     ---     ---       627     587     616       710     660     688      1010     982    1000
  22      ---     ---     ---       636     575     594       735     655     686      1020     964    1000
  23      ---     ---     ---       637     545     600       760     681     716      1000     934     967
  24      ---     ---     ---       569     532     552       768     713     751       961     903     936
  25      ---     ---     ---       564     533     548       754     711     739       952     886     928

  26      421     306     362       649     564     614       775     688     732       986     946     959
  27      408     373     389       645     627     636       759     721     740       973     885     922
  28      458     391     418       672     639     652       769     719     748       902     772     827
  29      420     394     408       736     672     704       779     703     736       ---     ---     ---
  30      408     311     379       721     704     715       795     659     739       ---     ---     ---
  31      ---     ---     ---       710     587     647       724     578     640       ---     ---     ---

 MONTH    676     154     371       736     313     524       795     506     688      1020     564     815

                                             KISKIMINETAS RIVER BASIN

                              03040000  STONYCREEK RIVER AT FERNDALE, PA--Continued


             pH VALUES, WATER, WHOLE, FIELD, STANDARD UNITS, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998

 DAY      MAX     MIN  MEDIAN       MAX     MIN  MEDIAN       MAX     MIN  MEDIAN       MAX     MIN  MEDIAN

                OCTOBER                 NOVEMBER                  DECEMBER                    JANUARY

   1      5.9     5.8     5.8       ---     ---     ---       ---     ---     ---       ---     ---     ---
   2      5.8     5.6     5.7       ---     ---     ---       ---     ---     ---       ---     ---     ---
   3      5.7     5.6     5.6       ---     ---     ---       ---     ---     ---       ---     ---     ---
   4      5.8     5.7     5.8       ---     ---     ---       ---     ---     ---       ---     ---     ---
   5      5.9     5.8     5.9       ---     ---     ---       ---     ---     ---       ---     ---     ---

   6      6.1     5.9     6.0       ---     ---     ---       ---     ---     ---       ---     ---     ---
   7      6.3     6.1     6.2       ---     ---     ---       ---     ---     ---       ---     ---     ---
   8      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
   9      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  10      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  11      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  12      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  13      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  14      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  15      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  16      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  17      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  18      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  19      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  20      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  21      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  22      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  23      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  24      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  25      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  26      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  27      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  28      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  29      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  30      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  31      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

 MAX      6.3     6.1     6.2       ---     ---     ---       ---     ---     ---       ---     ---     ---
 MIN      5.7     5.6     5.6       ---     ---     ---       ---     ---     ---       ---     ---     ---

                                             KISKIMINETAS RIVER BASIN

                              03040000  STONYCREEK RIVER AT FERNDALE, PA--Continued


            pH VALUES, WATER, WHOLE, FIELD, STANDARD UNITS, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998

 DAY      MAX     MIN  MEDIAN       MAX     MIN  MEDIAN       MAX     MIN  MEDIAN       MAX     MIN  MEDIAN

               FEBRUARY                   MARCH                     APRIL                       MAY

   1      ---     ---     ---       ---     ---     ---       5.4     4.9     5.0       5.4     5.3     5.4
   2      ---     ---     ---       ---     ---     ---       5.6     5.4     5.5       5.4     5.2     5.4
   3      ---     ---     ---       ---     ---     ---       5.5     5.2     5.4       5.3     5.2     5.3
   4      ---     ---     ---       ---     ---     ---       5.2     5.0     5.2       5.2     5.1     5.1
   5      ---     ---     ---       ---     ---     ---       5.0     4.8     4.9       5.7     5.1     5.3

   6      ---     ---     ---       ---     ---     ---       4.9     4.8     4.8       5.9     5.6     5.7
   7      ---     ---     ---       ---     ---     ---       4.9     4.9     4.9       5.9     5.8     5.9
   8      ---     ---     ---       ---     ---     ---       5.0     4.9     4.9       5.9     5.7     5.8
   9      ---     ---     ---       ---     ---     ---       5.1     4.9     5.0       5.9     5.7     5.8
  10      ---     ---     ---       ---     ---     ---       5.2     5.1     5.1       5.8     5.6     5.7

  11      ---     ---     ---       ---     ---     ---       5.4     5.2     5.3       5.6     5.5     5.5
  12      ---     ---     ---       ---     ---     ---       5.5     5.3     5.4       5.9     5.6     5.8
  13      ---     ---     ---       ---     ---     ---       5.7     5.5     5.6       5.9     5.8     5.9
  14      ---     ---     ---       ---     ---     ---       ---     ---     ---       5.9     5.9     5.9
  15      ---     ---     ---       ---     ---     ---       6.1     5.8     5.8       5.9     5.8     5.9

  16      ---     ---     ---       ---     ---     ---       5.8     5.7     5.8       5.8     5.7     5.8
  17      ---     ---     ---       ---     ---     ---       5.7     5.4     5.6       5.7     5.4     5.6
  18      ---     ---     ---       5.2     4.9     5.0       5.4     5.1     5.3       5.4     5.1     5.3
  19      ---     ---     ---       5.8     5.2     5.8       5.6     4.9     5.0       5.4     5.1     5.3
  20      ---     ---     ---       5.8     5.3     5.6       6.0     5.6     5.9       5.4     5.2     5.3

  21      ---     ---     ---       5.7     5.1     5.5       6.0     5.9     5.9       5.2     5.1     5.2
  22      ---     ---     ---       5.8     5.7     5.7       5.9     5.7     5.8       5.1     5.0     5.1
  23      ---     ---     ---       5.8     5.7     5.8       5.7     5.6     5.7       5.0     4.8     4.9
  24      ---     ---     ---       5.8     5.7     5.8       5.6     5.5     5.6       4.8     4.6     4.6
  25      ---     ---     ---       5.7     5.7     5.7       5.5     5.3     5.4       4.6     4.4     4.5

  26      ---     ---     ---       5.7     5.5     5.6       5.3     4.7     5.1       4.6     4.4     4.5
  27      ---     ---     ---       5.5     5.2     5.4       5.4     4.6     5.1       4.6     4.5     4.6
  28      ---     ---     ---       5.3     5.0     5.2       5.5     5.4     5.5       4.7     4.6     4.6
  29      ---     ---     ---       5.0     4.8     4.8       5.5     5.4     5.5       ---     ---     ---
  30      ---     ---     ---       4.8     4.7     4.7       5.4     5.4     5.4       4.6     4.5     4.6
  31      ---     ---     ---       4.9     4.8     4.8       ---     ---     ---       4.6     4.4     4.5

 MAX      ---     ---     ---       5.8     5.7     5.8       6.1     5.9     5.9       5.9     5.9     5.9
 MIN      ---     ---     ---       4.8     4.7     4.7       4.9     4.6     4.8       4.6     4.4     4.5


                                             KISKIMINETAS RIVER BASIN

                              03040000  STONYCREEK RIVER AT FERNDALE, PA--Continued


            pH VALUES, WATER, WHOLE, FIELD, STANDARD UNITS, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998

 DAY      MAX     MIN  MEDIAN       MAX     MIN  MEDIAN       MAX     MIN  MEDIAN       MAX     MIN  MEDIAN

                 JUNE                     JULY                     AUGUST                    SEPTEMBER

   1      6.4     4.4     5.8       6.2     5.5     6.0       4.8     4.6     4.7       4.7     4.6     4.7
   2      6.6     6.4     6.5       6.2     6.2     6.2       4.8     4.8     4.8       4.7     4.6     4.7
   3      6.7     6.4     6.5       6.2     5.9     6.2       4.9     4.8     4.8       4.8     4.7     4.7
   4      6.8     6.7     6.8       5.9     5.3     5.6       4.8     4.7     4.8       4.7     4.6     4.7
   5      6.8     6.5     6.7       5.3     5.2     5.3       4.7     4.7     4.7       4.8     4.6     4.7

   6      6.5     6.3     6.4       5.2     5.0     5.2       4.7     4.6     4.7       4.8     4.7     4.7
   7      6.3     6.1     6.2       5.0     4.8     4.9       4.7     4.6     4.6       4.8     4.6     4.7
   8      6.1     5.6     5.9       5.5     4.8     5.1       4.7     4.6     4.7       4.9     4.7     4.8
   9      5.6     5.6     5.6       6.6     5.5     6.2       4.6     4.6     4.6       4.9     4.8     4.9
  10      5.6     5.4     5.4       6.7     6.6     6.7       5.0     4.5     4.6       4.9     4.8     4.9

  11      5.5     5.3     5.4       6.7     6.5     6.6       5.3     4.4     4.8       4.9     4.8     4.9
  12      5.5     5.3     5.4       6.5     5.4     6.2       4.9     4.6     4.7       4.9     4.9     4.9
  13      6.4     5.5     6.1       5.4     4.9     5.0       4.6     4.5     4.5       5.0     4.8     4.9
  14      6.5     6.2     6.4       ---     ---     ---       4.6     4.5     4.6       5.0     4.8     4.9
  15      6.2     6.1     6.2       4.7     4.5     4.6       4.6     4.4     4.5       5.2     5.0     5.1

  16      6.1     6.0     6.1       4.7     4.6     4.6       4.5     4.3     4.5       5.4     5.2     5.3
  17      6.3     6.0     6.1       4.7     4.6     4.7       4.5     4.3     4.3       5.7     5.4     5.5
  18      6.8     6.3     6.7       4.8     4.6     4.8       4.4     4.3     4.4       5.8     5.7     5.7
  19      7.3     6.8     6.9       4.6     4.5     4.6       4.6     4.4     4.5       5.9     5.8     5.9
  20      7.4     6.5     7.2       4.6     4.6     4.6       4.7     4.6     4.7       6.1     5.9     6.0

  21      7.1     6.8     7.0       4.7     4.6     4.6       4.7     4.6     4.7       6.2     6.1     6.1
  22      6.8     6.6     6.8       4.7     4.5     4.6       4.7     4.6     4.6       6.3     6.2     6.2
  23      6.7     6.6     6.7       4.8     4.6     4.6       4.6     4.5     4.6       6.4     6.3     6.3
  24      6.6     6.3     6.4       5.2     4.8     5.1       4.6     4.5     4.6       6.5     6.4     6.4
  25      ---     ---     ---       5.2     5.0     5.1       4.6     4.5     4.6       6.5     6.4     6.5

  26      6.6     6.1     6.3       5.1     4.9     5.0       4.6     4.5     4.5       6.6     6.5     6.5
  27      6.4     5.5     6.2       5.1     4.9     5.1       4.6     4.5     4.6       6.6     6.5     6.6
  28      5.5     4.6     4.7       4.9     4.7     4.9       4.6     4.5     4.6       6.6     6.1     6.6
  29      5.4     4.7     5.0       4.7     4.5     4.6       4.6     4.6     4.6       ---     ---     ---
  30      5.7     5.4     5.4       4.6     4.5     4.5       4.6     4.5     4.6       ---     ---     ---
  31      ---     ---     ---       4.6     4.5     4.5       4.7     4.5     4.6       ---     ---     ---

 MAX      7.4     6.8     7.2       6.7     6.6     6.7       5.3     4.8     4.8       6.6     6.5     6.6
 MIN      5.4     4.4     4.7       4.6     4.5     4.5       4.4     4.3     4.3       4.7     4.6     4.7


                                             KISKIMINETAS RIVER BASIN

                              03040000  STONYCREEK RIVER AT FERNDALE, 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     15.0    13.0    14.0       ---     ---     ---       ---     ---     ---       ---     ---     ---
   2     14.5    11.0    12.5       ---     ---     ---       ---     ---     ---       ---     ---     ---
   3     14.5    11.5    13.0       ---     ---     ---       ---     ---     ---       ---     ---     ---
   4     16.5    12.5    14.5       ---     ---     ---       ---     ---     ---       ---     ---     ---
   5     18.0    15.0    16.0       ---     ---     ---       ---     ---     ---       ---     ---     ---

   6     19.0    15.0    16.5       ---     ---     ---       ---     ---     ---       ---     ---     ---
   7     18.5    15.5    16.5       ---     ---     ---       ---     ---     ---       ---     ---     ---
   8      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
   9      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  10      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  11      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  12      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  13      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  14      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  15      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  16      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  17      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  18      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  19      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  20      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  21      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  22      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  23      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  24      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  25      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  26      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  27      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  28      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  29      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  30      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---
  31      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

 MONTH   19.0    11.0    14.7       ---     ---     ---       ---     ---     ---       ---     ---     ---

                                             KISKIMINETAS RIVER BASIN

                              03040000  STONYCREEK RIVER AT FERNDALE, 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      ---     ---     ---       ---     ---     ---      14.5    12.5    13.5      14.0    12.5    13.5
   2      ---     ---     ---       ---     ---     ---      12.5    10.5    11.5      13.5    13.0    13.0
   3      ---     ---     ---       ---     ---     ---      11.0     9.0    10.0      14.5    12.0    13.0
   4      ---     ---     ---       ---     ---     ---      10.5     7.5     8.5      15.0    13.0    14.5
   5      ---     ---     ---       ---     ---     ---      10.0     6.0     8.0      15.0    13.5    14.0

   6      ---     ---     ---       ---     ---     ---      10.5     6.5     8.5      14.5    12.0    13.0
   7      ---     ---     ---       ---     ---     ---      10.5     6.5     9.0      15.0    12.5    13.5
   8      ---     ---     ---       ---     ---     ---      12.0     9.0    10.5      14.5    13.0    13.5
   9      ---     ---     ---       ---     ---     ---      11.0     8.5    10.0      14.0    12.5    13.0
  10      ---     ---     ---       ---     ---     ---       9.0     7.5     8.5      14.0    12.5    13.0

  11      ---     ---     ---       ---     ---     ---      10.5     7.5     9.0      13.5    12.5    13.0
  12      ---     ---     ---       ---     ---     ---      11.0     7.0     9.0      13.0    12.0    12.5
  13      ---     ---     ---       ---     ---     ---      12.0     8.0    10.0      16.5    12.0    14.0
  14      ---     ---     ---       ---     ---     ---       ---     ---     ---      18.0    13.0    15.5
  15      ---     ---     ---       ---     ---     ---      13.5    11.0    12.0      19.0    14.0    16.5

  16      ---     ---     ---       ---     ---     ---      13.5    11.5    12.5      19.5    15.5    17.5
  17      ---     ---     ---       ---     ---     ---      13.5    11.0    12.0      21.0    17.0    19.0
  18      ---     ---     ---       5.0     4.0     4.5      12.5     9.0    11.0      20.0    16.0    18.0
  19      ---     ---     ---       6.5     4.5     5.5      12.0     9.0    10.5      21.0    16.5    19.0
  20      ---     ---     ---       6.5     5.0     5.5      10.5     8.5     9.5      22.0    18.0    20.0

  21      ---     ---     ---       6.0     4.5     5.0      12.0     8.5    10.0      21.5    18.0    20.0
  22      ---     ---     ---       4.5     3.0     3.5      11.5     9.5    10.5      19.5    15.5    17.5
  23      ---     ---     ---       5.0     2.5     3.5      11.0     9.0    10.0      20.0    15.5    17.5
  24      ---     ---     ---       5.0     3.0     4.0      13.0     8.5    11.0      17.5    15.0    16.0
  25      ---     ---     ---       6.5     2.5     4.5      14.5    10.5    12.5      18.0    15.0    16.5

  26      ---     ---     ---       9.5     5.0     7.5      13.5    10.5    12.0      19.5    16.5    17.5
  27      ---     ---     ---      12.0     7.5    10.0      12.5     9.0    10.5      21.0    16.0    18.0
  28      ---     ---     ---      13.0     9.5    11.5      13.0     8.5    11.0      21.5    17.0    19.0
  29      ---     ---     ---      14.5    11.0    13.0      13.5     9.5    11.5       ---     ---     ---
  30      ---     ---     ---      15.0    11.0    13.0      13.5    12.5    13.0      25.0    19.5    22.0
  31      ---     ---     ---      15.5    12.0    14.0       ---     ---     ---      25.0    20.5    22.0

 MONTH    ---     ---     ---      15.5     2.5     7.5      14.5     6.0    10.5      25.0    12.0    16.2

                                             KISKIMINETAS RIVER BASIN

                              03040000  STONYCREEK RIVER AT FERNDALE, 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     21.0    18.0    19.5      22.0    18.0    20.0      26.5    19.0    22.0      25.0    18.5    21.5
   2     21.5    17.5    19.5      23.0    18.0    20.5      27.0    18.0    22.0      24.0    19.0    21.0
   3     20.0    17.5    18.5      23.0    19.0    20.5      27.0    18.5    22.5      24.5    16.5    20.5
   4     19.5    16.0    17.5      20.5    18.5    19.5      27.5    18.5    23.0      24.5    17.0    20.5
   5     18.0    15.0    16.5      23.5    18.0    20.0      27.5    19.5    23.5      24.5    17.0    20.5

   6     16.5    14.0    15.0      24.0    18.5    21.0      28.0    19.5    23.5      25.5    17.5    21.0
   7     15.5    14.0    14.5      24.5    19.0    21.5      28.5    19.5    23.5      22.5    19.5    21.0
   8     16.5    13.0    14.5      22.0    20.5    21.0      26.5    20.5    23.5      20.0    16.5    18.0
   9     14.5    13.0    14.0      23.0    20.0    21.5      27.5    21.0    24.0      18.0    14.5    16.0
  10     14.5    13.5    14.0      24.5    20.5    22.0      26.0    22.5    24.0      20.0    13.5    16.5

  11     17.0    14.0    15.5      24.0    18.5    21.0      25.0    21.0    22.5      21.5    14.0    17.5
  12     20.0    16.0    18.0      24.5    18.0    21.0      27.0    20.0    23.0      23.5    16.0    19.5
  13     20.0    17.5    18.5      26.5    18.5    22.0      27.0    20.0    23.0      25.5    17.5    21.0
  14     18.0    16.0    17.0       ---     ---     ---      25.0    21.0    22.5      26.0    18.0    21.5
  15     19.0    16.5    18.0      23.5    21.0    22.0      26.0    20.0    22.5      26.0    19.5    22.5

  16     21.5    18.0    19.0      24.5    20.5    22.0      24.0    21.0    22.5      25.0    20.5    23.0
  17     19.5    17.5    18.5      26.5    21.0    23.0      24.0    21.5    22.5      24.5    21.0    22.5
  18     21.0    17.0    19.0      27.5    20.5    23.5      25.5    20.5    22.5      25.5    20.0    22.0
  19     20.5    17.5    18.5      28.0    20.0    23.5      25.0    18.0    21.0      24.5    19.5    21.5
  20     20.0    17.0    18.5      26.0    22.0    23.5      25.5    17.0    21.0      25.5    20.0    22.5

  21     21.5    17.5    19.5      26.5    21.0    23.5      25.5    17.5    21.0      24.5    20.5    22.0
  22     20.5    18.5    19.5      27.5    22.0    24.0      28.0    19.5    23.0      23.0    19.0    21.5
  23     22.0    19.0    20.5      26.0    22.0    23.5      28.0    21.0    24.0      20.5    15.5    17.5
  24     23.5    19.5    21.5      23.5    20.5    22.0      24.0    21.0    22.5      20.0    13.5    16.5
  25      ---     ---     ---      26.0    19.0    22.0      22.5    20.0    21.0      20.0    16.5    18.0

  26     23.5    21.0    22.5      27.0    20.0    23.0      26.5    20.0    22.5      23.0    17.0    19.5
  27     23.0    21.0    21.5      26.5    19.5    23.0      27.5    20.0    23.5      24.0    18.5    21.0
  28     22.0    20.5    21.0      27.0    19.5    23.0      27.5    19.5    23.0      23.0    16.5    20.5
  29     21.5    19.5    20.5      26.0    20.0    23.0      24.0    20.5    22.0       ---     ---     ---
  30     22.0    18.5    20.0      24.5    19.5    22.0      27.0    19.5    22.5       ---     ---     ---
  31      ---     ---     ---      24.5    20.0    22.0      25.0    20.0    22.0       ---     ---     ---

 MONTH   23.5    13.0    18.3      28.0    18.0    22.0      28.5    17.0    22.6      26.0    13.5    20.2






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