Deer Creek near Dorseyville, PA

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

--------





                                                 DEER CREEK BASIN



                                    03049646  DEER CREEK NEAR DORSEYVILLE, PA

                                   (National water-quality assessment station)



LOCATION.--Lat 40`34'57", long 79`51'41", Allegheny County, Hydrologic Unit 050100009, on left bank, 10 ft

   upstream from foot bridge accessing Emmerling Community Park, 0.5 m upstream from Blue Run, 0.6 mi downstream

   from Cunningham Run, and about 1.0 mi north of Indianola, Pa.



DRAINAGE AREA.--27.0 mi2.



                                             WATER-DISCHARGE RECORDS



PERIOD OF RECORD.--June 1996 to September 1998 (discontinued).



GAGE.--Water-stage recorder.  Elevation of gage is 840 ft above sea level, from topographic map.



REMARKS.--Records good except for estimated daily discharges, which are fair.  Several measurements of water

   temperature were made during the year.  Satellite telemeter at station.



PEAK DISCHARGES FOR CURRENT YEAR.--Peak discharges greater than a base discharge of 250 ft3/s and maximum (*):



                      Discharge    Gage height                                          Discharge    Gage height

 Date        Time      (ft3/s)        (ft)                         Date        Time      (ft3/s)        (ft)



Nov. 8       0500        256          2.62                        Apr. 19      2215         369         2.71

Jan. 8       0215        997          3.76                        Apr. 26      2030      *1,260        *4.08

Jan. 9       0615        378          2.73





                 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      10       18       32        e12       15       39       26     50      11       14         .66      .25

  2       8.8     13       28        e13       17       35       22     64       8.0      5.1       .13      .89

  3       4.5      7.1     27        e18       20       38       20     51       8.9      3.2       .06      .91

  4       2.5      8.4     30        e15       21       36       17     44       7.3      2.6       .04      .54

  5       2.3      7.1     25        e18       41       32       16     38       4.5      2.7       .46      .56



  6       2.2      6.1     17        e25       35       26       15     34       1.2      1.8       .60      .23

  7       2.2     43       16         99       25       20       16     30        .92     2.5       .63      .39

  8       2.2    158       18        459       22       41       21     39        .83    53         .27     1.3

  9       1.9     43       22        248       23       66       52     29        .70    13         .05     1.1

 10       1.9     24       67        110       25       58       91     24       4.1      7.6       .06     1.6



 11       3.1     17       59         68       25       46       50     22      10        4.0       .11     1.4

 12       2.7     14       40         52       31       38       40     22      13        3.1       .44      .96

 13       2.6     14       30         55       24       29       34     19      24        2.4       .52      .27

 14       2.5    161       24         42       17      e23       37     17      18        3.2       .50      .19

 15       3.1     85       21         38       15      e20       61     13      34        3.2       .34      .08



 16       6.3     49       22         34       18      e18       83      7.6    33        3.4       .06      .98

 17       6.8     34       23         26       50      e17       60      9.1    32        2.9       .09     2.3

 18       4.6     28       21         25       97      e20       42      8.1    21        1.3      1.1      2.6

 19       2.9     23       17         25      105      e24      155     10      36         .56      .78     2.5

 20       6.1     21       11         26       77       22      160     12      19        1.6       .66     4.1



 21      11       17        9.4       24       59       53       83     11      11        1.9       .36    37

 22      12       26       13         23       46       81       58      8.1    10        8.2       .07     3.5

 23      12       20       23         57       44       55       45      3.2    13        4.3       .03     1.4

 24       8.3     17       17         48       48       48       36      2.8    11        9.0       .05      .60

 25       4.3     19       28         38       40       41       29      5.2     9.4      2.3     27         .50



 26       3.5     21       21         34       35       36      384      5.7     6.3      1.1      8.9       .75

 27      15       17       18         35       31       32      241      8.9     2.6       .62     2.8       .46

 28      14       32      e14         33       32       27       99      8.6     2.6      1.1      1.7       .31

 29      13       47      e14         30      ---       25       68      5.9     5.2      1.5       .69      .46

 30      12       35      e13         29      ---       23       59      1.7    28        1.4       .30      .32

 31       6.6      ---    e12         21      ---       23      ---      2.3      ---     1.3       .18      ---



TOTAL   190.9   1024.7    732.4     1780     1038     1092     2120    606.2   386.55   163.88    49.64    68.45

MEAN     6.16     34.2     23.6     57.4     37.1     35.2     70.7     19.6     12.9     5.29     1.60     2.28

MAX        15      161       67      459      105       81      384       64       36       53       27       37

MIN       1.9      6.1      9.4       12       15       17       15      1.7      .70      .56      .03      .08

CFSM      .23     1.27      .88     2.13     1.37     1.30     2.62      .72      .48      .20      .06      .08

IN.       .26     1.41     1.01     2.45     1.43     1.50     2.92      .84      .53      .23      .07      .09



   e  Estimated.





                                                 DEER CREEK BASIN



                              03049646  DEER CREEK NEAR DORSEYVILLE, PA.--Continued



STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1996 - 1998, BY WATER YEAR (WY)



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



MEAN     16.4     46.7     39.6     42.2     38.3     45.7     44.4     39.5     23.1     9.52     4.75     8.80

MAX      26.6     59.2     55.6     57.4     39.4     56.3     70.7     59.4     34.7     18.2     7.23     17.8

(WY)     1997     1997     1997     1998     1997     1997     1998     1997     1996     1996     1997     1996

MIN      6.16     34.2     23.6     26.9     37.1     35.2     18.2     19.6     12.9     5.10     1.60     2.28

(WY)     1998     1998     1998     1997     1998     1998     1997     1998     1998     1997     1998     1998



SUMMARY STATISTICS           FOR 1997 CALENDAR YEAR        FOR 1998 WATER YEAR           WATER YEARS 1996 - 1998



ANNUAL TOTAL                        9237.6                     9252.72

ANNUAL MEAN                           25.3                       25.3                       28.6

HIGHEST ANNUAL MEAN                                                                         31.8            1997

LOWEST ANNUAL MEAN                                                                          25.3            1998

HIGHEST DAILY MEAN                   736     May 25             459     Jan  8             736       May 25 1997

LOWEST DAILY MEAN                      1.1   Aug 11                .03  Aug 23                .03    Aug 23 1998

ANNUAL SEVEN-DAY MINIMUM               1.9   Aug  5                .28  Aug  8                .28    Aug  8 1998

INSTANTANEOUS PEAK FLOW                                        1260     Apr 26           a2370       May 25 1997

INSTANTANEOUS PEAK STAGE                                          4.08  Apr 26              b5.08    May 25 1997

INSTANTANEOUS LOW FLOW                                             .00  Aug 24                .00    Aug 24 1998

ANNUAL RUNOFF (CFSM)                    .94                        .94                       1.06

ANNUAL RUNOFF (INCHES)                12.73                      12.75                      14.38

10 PERCENT EXCEEDS                    49                         52                         56

50 PERCENT EXCEEDS                    18                         17                         17

90 PERCENT EXCEEDS                     2.5                         .61                       1.9



   a  From rating curve extended above 450 ft3/s.

   b  From gage height record.





                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, PA--Continued

                                   (National Water-Quality Assessment station)



                                              WATER-QUALITY RECORDS



PERIOD OF RECORD.--April 1996 to September 1998 (discontinued).



PERIOD OF DAILY RECORD.--

   SPECIFIC CONDUCTANCE:  April 1997 to September 1997, April 1998 to September 1998.

   WATER TEMPERATURE:  November 1996 to September 1998.



INSTRUMENTATION.--Daily record measured and collected at hourly intervals with in-situ probes and electronic data

 loggers.  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 record were due to malfunctions of the equipment.  Water temperature and specific conductance data

   from the in-situ probes often times did not exactly agree with the water temperature and specific conductance

   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 TEMPERATURE:  Maximum, 29.5`C, August 9, 1998; minimum, 0.0`C on many days during winter periods.



EXTREMES FOR CURRENT YEAR.--

   WATER TEMPERATURE:  Maximum, 29.5`C, August 9; minimum 0.0`C, on many days during winter period.





                          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

    27...       0910    14        770      8.1      9.0      728     10.2      170      47      13         88

  NOV

    08...       0815   200        312      7.6      7.5      731     10.4       82      24       5.4       22

 DEC

    10...       1440   127        750      7.7      5.0      723     11.0      150      44      10         88

    17...       1400    25        783      7.8      4.0      735     14.2       83      23       5.9       13

  JAN

    08...       0910   425        339      7.6      9.0      726     11.2       82      23       5.7       28

    20...       0920    27        730      7.6      3.0      740     13.2      110      30       8.1       55

  FEB

    12...       1205    34        746      7.8      6.0      729     12.8      160      43      12         86

  MAR

    10...       0915    58        504      7.7      4.5      739     13.2      130      35       9.5       50

  APR

    08...       1310    20        757      7.7     11.5      730     10.6      170      45      13         94

    16...       1145    96        380      7.6     11.5      728      9.6      100      29       6.8       37

    27...       0910   225        281      7.7      8.5      744     10.9       80      22       5.9       19

  MAY

    20...       1250    12        780      7.6     19.0      747     10.5      190      52      15         95

  JUN

    02...       1600     7.4      939      7.8     17.5      749     10.3      190      51      16        123

    19...       1155    86        525      8.0     19.0      746      5.2      140      41       9.6       57

  JUL

    08...       0850   123        304      7.5     21.0      745      7.8       81      24       5.2       28

    22...       1240     6.0      534      8.4     24.5      751      9.4      140      40       9.7       59

  AUG

    25...       1330    10        790      8.3     20.5      747      8.1      160      42      12        112

    25...       1715    43        580      8.2     20.5      746      8.1      140      39      10         64

    25...       1850   121        317      8.0     19.5      745      8.0       85      25       5.3       28

    25...       2100    67        337      7.9     19.5      745      7.8       84      25       5.1       34

    26...       0710    10        420      8.0     19.5      739      8.0      110      32       7.1       47

  SEP

    29...       0850      .44     742      8.0     12.5      749      8.6      190      51      14         87







                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, 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

    27...       4.0      150      110       71       .27     5.4      454     <.010    <.050    <.015     <.20

  NOV

    08...       3.4       54       33       34       .18     6.6      191      .011    1.21     <.020      .55

  DEC

    10...       2.6       95       67      140       .16     6.5      421     <.010     .789    <.020      .88

    17...       1.3      170       60       13      <.10     5.0      147      .016     .769     .081      .22

  JAN

    08...       2.5       44       36       46       .16     8.4      187     <.010    1.23     <.020      .74

    20...       1.5      148       89       79       .18     4.6      423     <.010     .733    <.020     <.10

  FEB

    12...       2.3      139       84       85       .25     4.5      410     <.010     .467    <.020      .16

  MAR

    10...       1.8       99       60       51       .15     7.3      281     <.010     .710    <.020      .10

  APR

    08...       2.5      192      100       55       .23     4.0      460     <.010     .258    <.020      .15

    16...       1.9       80       42       40       .15     5.6      221      .010     .605     .081      .91

    27...       1.7       46       35       23       .13     8.3      162     <.010     .880     .051      .44

  MAY

    20...       2.8      210      100       52       .24     5.8      478      .011     .351     .051      .15

  JUN

    02...       3.1      290      130       55       .26     5.5      586     <.010     .276    <.020     <.10

    19...       2.7      125       76       41       .24     7.6      322     <.010     .691     .056      .65

  JUL

    08...       2.7       64       35       24       .20     5.6      185      .013     .853     .023     1.8

    22...       3.6      115       73       46       .26     5.4      325      .017     .475     .022      .37

  AUG

    25...       3.4      204      150       33       .35     5.7      508      .014     .312     .097      .34

    25...       3.2      146       80       42       .28     6.1      351      .017     .639     .115      .92

    25...       3.6       72       35       27       .27     5.6      193      .022    1.20      .138     5.1

    25...       3.0       80       41       31       .26     5.6      207      .025    1.18      .122      .70

    26...       3.5       92       58       40       .28     7.2      282      .029    1.44      .101      .75

  SEP

    29...       3.4      184       95       72       .29     3.9      448     <.010    <.050    <.020      .18



                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, PA--Continued





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



               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

    27...       <.20     .017     .021     .019      9.5     14       3.5      <.20       4      90

  NOV

    08...        .39     .091     .022     .023     53       46       5.4     >5.0      252      93

   DEC

    10...        .10     .183    <.010    <.010     12       29       2.9      1.1      160      93

    17...        .21     .036     .018     .036     23      123       1.2       .30       1      75

  JAN

    08...        .26     .239    <.010     .020     45       61       4.0       .90     395      90

    20...       <.10    <.010    <.010     .014    <10       21       3.9      <.20       1      83

  FEB

    12...        .12    <.010    <.010     .012     18       53       2.9       .20       2      67

  MAR

    10...       <.10    <.010    <.010     .013    <10       36       1.7       .20       4      81

  APR

    08...       <.10     .010    <.010    <.010     33       26       1.5       .20       4      62

    16...        .28     .179     .011     .011     22       76       2.9      4.5      222      94

    27...        .19     .072    <.010     .012     17       48       3.1       .20      65      91

  MAY

    20...        .16     .024    <.010     .010     15       17       1.5       --        3      55

  JUN

    02...       <.10    <.010    <.010    <.010    <10       23       1.3      <.20      10      82

    19...        .15     .132    <.010     .018    <10        5.1     2.3      2.5      269      96

  JUL

    08...        .34     .541     .059     .037     15       <4.0     4.4     >4.0      481      93

    22...        .25     .046    <.010    <.010    <10        9.7     3.7      1.3       34      90

  AUG

    25...        .19     .062     .026     .028    <10       22       3.7      1.0       35      84

    25...        .23     .255     .030     .030    <10       20       4.5     >5.0     1110      95

    25...        .35    1.68      .086     .062     20       <4.0     4.9     >5.0     1890      90

    25...        .30     .232     .044     .042     11       <4.0     5.1     >5.0     1140      93

    26...        .38     .142     .035     .044     20        4.5     5.9      1.2      421      40

  SEP

    29...        .14     .016    <.050     .013    <10       16       2.5       .20       6      59





                                                 DEER CREEK BASIN



                                    03049646  DEER CREEK NEAR DORSEYVILLE, PA.



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

         29...       0850       .44    12      <1.0      <1        52     <1.0     <1.0     <1.0     <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

          29...       1.1     <1.0      16      <1.0      1.2      <1      <1.0     <1.0      8.5





                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, PA--Continued



REMARKS.--The following data are for analytes from the National Water Quality laboratory (NWQL) schedule 2010--

   pesticides in filtered water.  Samples are filtered through a glass-fiber membrane filter with openings that

   are 0.7 microns in size to remove sediment and microorganisms.  A surrogate is then added to the sample.  The

   filtered water is field extracted on C-18 Solid Phase Extraction Cartridges and analyzed by a gas

   chromatography/mass spectrometric detector.

     The method detection limit (MDL) provides an index to indicate where measurement uncertainty is increased.

   When an analyte is detected and all criteria for a positive result are met, the concentration is reported.  If

   the concentration is less than the MDL, an 'E' code will be reported with the value.  If the analyte is

   qualitatively identified as present, but the quantitative determination is substantially more uncertain, the

   NWQL will identify the result with an 'E' code even though the measured value is greater than the MDL.  A value

   reported with an 'E' code should be used with caution.  When no analyte is detected in a sample, the default

   reporting value is the MDL preceded by a less-than sign (<).

	 The abbreviations SRG, SURROGT, or SURROG indicate surrogate recovery in percent.



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



                    DIS-              PH               BARO-             ALKA-   2,6-DI-

                  CHARGE,   SPE-     WATER             METRIC           LINITY    ETHYL    ACETO-   ALA-     ATRA-

                   INST.    CIFIC    WHOLE             PRES-            WAT DIS  ANILINE   CHLOR,   CHLOR,   ZINE,

                   CUBIC    CON-     FIELD   TEMPER-    SURE   OXYGEN,  TOT IT   WAT FLT   WATER    WATER,  WATER,

                    FEET    DUCT-   (STAND-   ATURE     (MM      DIS-    FIELD    0.7 m    FLTRD    DISS,    DISS,

 DATE      TIME     PER     ANCE      ARD     WATER      OF     SOLVED  MG/L AS  GF, REC    REC     REC,     REC

                   SECOND  (µS/CM)   UNITS)  (DEG C)    HG)     (MG/L)   CACO3   (µG/L)    (µG/L)  (µG/L)   (µG/L)

                  (00061)  (00095)  (00400)  (00010)  (00025)  (00300)  (39086)  (82660)  (49260)  (46342) (39632)



OCT

 27...     0910    14        770      8.1      9.0      728     10.2      150     <.0030   <.0020   <.002    E.003

NOV

 25...     1400    17        608      8.3      1.5      738     15.0      110     <.0030   <.0020   <.002     .006

DEC

 17...     1400    25        783      7.8      4.0      735     14.2      170     <.0030   <.0020   <.002    E.004

AUG

 25...     1330    10        790      8.3     20.5      747      8.1      204     <.0030   <.0020   <.002     .011

 25...     1715    43        580      8.2     20.5      746      8.1      146     <.0030   <.0020   <.002     .010

 25...     1850   121        317      8.0     19.5      745      8.0       72     <.0030   <.0020   <.002     .009

 25...     2100    67        337      7.9     19.5      745      7.8       80     <.0030   <.0020   <.002     .009

 26...     0710    10        420      8.0     19.5      739      8.0       92     <.0030   <.0020   <.002     .011









         METHYL     BEN-              CAR-    CARBO-                             DEETHYL                    DISUL-

          AZIN-    FLUR-    BUTYL-   BARYL    FURAN             CYANA-   DCPA     ATRA-                      FOTON

          PHOS     ALIN     ATE,     WATER    WATER    CHLOR-   ZINE,    WATER    ZINE,     DI-      DI-     WATER

         WAT FLT  WAT FLD   WATER,   FLTRD    FLTRD   PYRIFOS   WATER,   FLTRD    WATER,  AZINON,   ELDRIN   FLTRD

          0.7 m    0.7 m    DISS,    0.7 m    0.7 m     DIS-    DISS,    0.7 m    DISS,     DIS-     DIS-    0.7 m

 DATE    GF, REC  GF, REC   REC     GF, REC  GF, REC   SOLVED   REC     GF, REC   REC      SOLVED   SOLVED  GF,REC

         (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)    (µG/L)  (µG/L)   (µG/L)   (µG/L)    (µG/L)   (µG/L)  (µG/L)

         (82686)  (82673)  (04028)  (82680)  (82674)  (38933)  (04041)  (82682)  (04040)  (39572)  (39381) (82677)



OCT

 27...    <.0010   <.0020   <.0020   <.0030   <.0030   <.0040   <.0040   <.0020   <.0020   <.002    <.001   <.0170

NOV

 25...    <.0010   <.0020   <.0020   E.0092   <.0030   <.0040   <.0040   <.0020   E.0032   <.002    <.001   <.0170

DEC

 17...    <.800    <.0020   <.0020   <.0030   <.0030   <.0040   <.0040   <.0020   E.0029   <.002    <.001   <.0170

AUG

 25...    <.0010   <.0020   <.0020   E.0669   <.0030   <.0040   <.0040   <.0020   E.0020    .007    <.001   <.0170

 25...    <.0010   <.0020   <.0020   E.581    <.0030   <.0040   <.0040   <.0020   <.0020    .026    <.001   <.0170

 25...    <.0010   <.0020   <.0020   E.610    <.0030   <.0040   <.0040   <.0020   E.0026    .027    <.001   <.0170

 25...    <.0010   <.0020   <.0020   E.418    <.0030   <.0040   <.0040   <.0020   E.0024    .051    <.001   <.0170

 26...    <.0010   <.0020   <.0020   E.613    <.0030   <.0040   <.0040   <.0020   E.0032    .051    <.001   <.0170





                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, PA--Continued





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



                  ETHAL-   ETHO-                       LIN-                                MOL-   NAPROP-

          EPTC     FLUR-    PROP                       URON                       METRI-   INATE    AMIDE

          WATER    ALIN     WATER   FONOFOS            WATER    MALA-    METO-    BUZIN    WATER    WATER    PARA-

          FLTRD   WAT FLT   FLTRD    WATER   LINDANE   FLTRD    THION,  LACHLOR  SENCOR    FLTRD    FLTRD   THION,

          0.7 m    0.7 m    0.7 m    DISS     DIS-     0.7 m     DIS-    WATER    WATER    0.7 m    0.7 m     DIS-

 DATE    GF, REC  GF, REC  GF, REC    REC    SOLVED   GF, REC   SOLVED  DISSOLV  DISSOLV  GF, REC  GF, REC  SOLVED

         (µG/L)   (µG/L)   (µG/L)   (µG/L)    (µG/L)  (µG/L)    (µG/L)  (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)

         (82668)  (82663)  (82672)  (04095)  (39341)  (82666)  (39532)  (39415)  (82630)  (82671)  (82684) (39542)



OCT

 27...    <.0020   <.0040   <.0030   <.0030   <.004    <.0020   <.005    <.002    <.004    <.0040   <.0030   <.004

NOV

 25...    <.0020   <.0040   <.0030   <.0030   <.004    <.0020   <.005     .005    <.004    <.0040   <.0030   <.004

DEC

 17...    <.0020   <.0040   <.0030   <.0030   <.004    <.0020   <.005    E.004    <.010    <.0040   <.0030   <.004

AUG

 25...    <.0020   <.0040   <.0030   <.0030   <.004    <.0020   <.005     .005    <.004    <.0040   <.0030   <.004

 25...    <.0020   <.0040   <.0030   <.0030   <.004    <.0020   <.005     .005    <.004    <.0040    .0054   <.004

 25...    <.0020   <.0040   <.0030   <.0030   <.004    <.0020   <.005     .005    <.004    <.0040   <.0030   <.004

 25...    <.0020   <.0040   <.0030   <.0030   <.004    <.0020   <.005     .005    <.004    <.0040   <.0030   <.004

 26...    <.0020   <.0040   <.0030   <.0030   <.004    <.0020   <.005     .005    <.004    <.0040   <.0030   <.004









         METHYL     PEB-    PENDI-                               PRO-     PRO-    PRON-             TEBU-     TER-

          PARA-    ULATE    METH-   PHORATE   PRO-     PROP-    PANIL   PARGITE   AMIDE    SI-     THIURON   BACIL

          THION    WATER    ALIN     WATER    METON,   CHLOR,   WATER    WATER    WATER   MAZINE,   WATER    WATER

         WAT FLT   FILTRD  WAT FLT   FLTRD    WATER,   WATER,   FLTRD    FLTRD    FLTRD    WATER,   FLTRD    FLTRD

          0.7 m    0.7 m    0.7 m    0.7 m    DISS,    DISS,    0.7 m    0.7 m    0.7 m    DISS,    0.7 m    0.7 m

 DATE    GF, REC  GF, REC  GF, REC  GF, REC   REC      REC     GF, REC  GF, REC  GF, REC   REC     GF, REC  GF,REC

         (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)

         (82667)  (82669)  (82683)  (82664)  (04037)  (04024)  (82679)  (82685)  (82676)  (04035)  (82670) (82665)



OCT

 27...    <.0060   <.0040   <.0040   <.0020   E.0134   <.0070   <.0040   <.0130   <.0030   <.0050   <.0100  <.0070

NOV 25... <.0060   <.0040   <.0040   <.0020   E.0057   <.0070   <.0040   <.0130   <.0030   E.0029   <.0100  <.0070

DEC

 17...    <.0060   <.0040   <.0040   <.0020   E.0037   <.0070   <.0040   <.0130   <.0030   <.0050   <.0100  <.0070

AUG

 25...    <.0060   <.0040   <.0040   <.0020    .355    <.0070   <.0040   <.0130   <.0030   E.0035   <.0100  <.0070

 25...    <.0060   <.0040   <.0040   <.0020    .182    <.0070   <.0040   <.0130   <.0030   <.0050   <.0100  <.0070

 25...    <.0060   <.0040   <.0040   <.0020    .0512   <.0070   <.0040   <.0130   <.0030   E.0032   <.0100  <.0070

 25...    <.0060   <.0040   <.0040   <.0020    .0275   <.0070   <.0040   <.0130   <.0030   E.0041   <.0100  <.0070

 26...    <.0060   <.0040   <.0040   <.0020    .0293   <.0070   <.0040   <.0130   <.0030   E.0036   <.0100  <.0070









               TER-    THIO-    TRIAL-    TRI-              PER-             DIAZ-   TERBUTH    HCH

              BUFOS   BENCARB   LATE     FLUR-            METHRIN            INON    YLAZINE   ALPHA   SAMPLE

              WATER    WATER    WATER    ALIN     ALPHA     CIS             D10 SRG  SURROGT  D6 SRG   VOLUME

              FLTRD    FLTRD    FLTRD   WAT FLT    BHC    WAT FLT   P,P'    WAT FLT  WAT FLT  WAT FLT   SCHED-

              0.7 m    0.7 m    0.7 m    0.7 m     DIS-    0.7 m     DDE     0.7 m    0.7 m    0.7 m     ULE

     DATE    GF, REC  GF, REC  GF, REC  GF, REC  SOLVED   GF, REC  DISSOLV  GF, REC  GF, REC  GF, REC   2010

             (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   PERCENT  PERCENT  PERCENT   (ML)

             (82675)  (82681)  (82678)  (82661)  (34253)  (82687)  (34653)  (91063)  (91064)  (91065)  (99857)



 OCT

   27...      <.0130   <.0020   <.0010   <.0020   <.0020   <.0050   <.0060    93.5     129      94.4     925

 NOV

   25...      <.0130   <.0020   <.0010   <.0020   <.0020   <.0050   <.0060    97.7     120     101       980

 DEC

   17...      <.0130   <.0020   <.0010   <.0020   <.0020   <.0050   <.0060    86.8     105      92.1     970

 AUG

   25...      <.0130   <.0020   <.0010   E.0019   <.0020   <.0050   <.0060    98.3     109     108       990

   25...      <.0130   <.0020   <.0010   E.0027   <.0020   <.0050   <.0060    94.5     106     106       980

   25...      <.0130   <.0020   <.0010   E.0020   <.0020   <.0050   <.0060   103       112     108       970

   25...      <.0130   <.0020   <.0010   E.0017   <.0020   <.0050   <.0060    99.1     107     103       980

   26...      <.0130   <.0020   <.0010   <.0020   <.0020   <.0050   <.0060   101       108     109       970





                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, PA--Continued



REMARKS.--The following data are for analytes from the National Water Quality laboratory (NWQL) schedule 2051--

   pesticides in filtered water.  Samples are filtered through a glass-fiber membrane filter with openings that

   are 0.7 microns in size to remove sediment and microorganisms.  A surrogate is then added to the sample. The

   filtered water is field extracted on a Carbopak B solid phase extraction cartridge and analyzed by high

   performance liquid chromatography.

     The method detection limit (MDL) provides an index to indicate where measurement uncertainty is increased.

   When an analyte is detected and all criteria for a positive result are met, the concentration is reported.  If

   the concentration is less than the MDL, an 'E' code willl be reported with the value.  If the analyte is

   qualitatively identified as present, but the quantitative determination is substantially more uncertain, the

   NWQL will identify the result with an 'E' code even though the measured value is greater than the MDL.  A value

   reported with an 'E' code should be used with caution.  When no analyte is detected in a sample, the default

   reporting value is the MDL preceded by a less-than sign (<).

	 The abbreviations SRG, SURROGT, or SURROG indicate surrogate recovery in percent.



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



                          DIS-              PH               BARO-             ALKA-

                        CHARGE,   SPE-     WATER             METRIC           LINITY

                         INST.    CIFIC    WHOLE             PRES-            WAT DIS

                         CUBIC    CON-     FIELD   TEMPER-    SURE   OXYGEN,  TOT IT   2,4,5-T   2,4-D,

                          FEET    DUCT-   (STAND-   ATURE     (MM      DIS-    FIELD     DIS-     DIS-

       DATE      TIME     PER     ANCE      ARD     WATER      OF     SOLVED  MG/L AS   SOLVED   SOLVED

                         SECOND  (µS/CM)   UNITS)  (DEG C)    HG)     (MG/L)   CACO3    (µG/L)   (µG/L)

                        (00061)  (00095)  (00400)  (00010)  (00025)  (00300)  (39086)  (39742)  (39732)



   OCT

     27...       0910    14        770      8.1      9.0      728     10.2      110     <.0350   <.035

   NOV

     25...       1400    17        608      8.3      1.5      738     15.0      110     <.0350   <.150

   DEC

     17...       1400    25        783      7.8      4.0      735     14.2      170     <.0350   <.150









                                 3HYDRXY            ACIFL-   ALDI-    ALDI-   ALDICA-   BENTA-

                2,4-DB            CARBO-           UORFEN    CARB,    CARB    RB SUL-    ZON,    BRO-

                WATER,            FURAN    DNOC     WATER,   WATER,  SULFONE  FOXIDE,   WATER,   MACIL,

                FLTRD,  SILVEX,  WAT,FLT  WAT,FLT   FLTRD,   FLTRD,  WAT,FLT  WAT,FLT   FLTRD,   WATER,

               GF 0.7m    DIS-   GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m   DISS,

       DATE      REC     SOLVED    REC      REC      REC      REC      REC      REC      REC     REC

                (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)  (µG/L)

               (38746)  (39762)  (49308)  (49299)  (49315)  (49312)  (49313)  (49314)  (38711)  (04029)



   OCT

     27...      <.0350   <.0210   <.0140   <.0350   <.0350   <.0160   <.0160   <.0210   <.0140   <.0350

   NOV

     25...      <.240    <.0210   <.0140   <.420    <.0350   <.550    <.100    <.0210   <.0140   <.0350

   DEC

     17...      <.240    <.0210   <.0140   <.420    <.0350   <.550    <.100    <.0210   <.0140   <.0350









                 BRO-     CAR-    CARBO-   CHLOR-  CHLORO-  CLOPYR-  DACTHAL           DICHLO-  DICHLOR

               MOXYNIL   BARYL,   FURAN,   AMBEN,   THALO-   ALID,    MONO-   DICAMBA   BENIL,   PROP,

                WATER,   WATER,   WATER,   WATER,    NIL,    WATER,   ACID,    WATER,   WATER,   WATER,

                FLTRD,   FLTRD,   FLTRD,   FLTRD,  WAT,FLT   FLTRD,  WAT,FLT   FLTRD,   FLTRD,   FLTRD,

               GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m

       DATE      REC      REC      REC      REC      REC      REC      REC      REC      REC      REC

                (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)

               (49311)  (49310)  (49309)  (49307)  (49306)  (49305)  (49304)  (38442)  (49303)  (49302)



   OCT

     27...      <.0350   <.0080   <.0280   <.0110   <.0350   <.0500   <.0170   <.0350   <.0200   <.0320

   NOV

     25...      <.0350   <.0080   <.120    <.420    <.480    <.230    <.0170   <.0350  <1.20     <.0320

   DEC

     17...      <.0350   <.0080   <.120    <.420    <.480    <.230    <.0170   <.0350  <1.20     <.0320





                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, PA--Continued





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





                                   FEN-    FLUO-                              METHIO-    METH-    NEB-

               DINOSEB  DIURON,   URON,   METURON  LINURON   MCPA,    MCPB,    CARB,    OMYL,    URON,

                WATER,   WATER,   WATER,   WATER,   WATER,   WATER,   WATER,   WATER,   WATER,   WATER,

                FLTRD,   FLTRD,   FLTRD,   FLTRD,   FLTRD,   FLTRD,   FLTRD,   FLTRD,   FLTRD,   FLTRD,

               GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m

       DATE      REC      REC      REC      REC      REC      REC      REC      REC      REC      REC

                (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)

               (49301)  (49300)  (49297)  (38811)  (38478)  (38482)  (38487)  (38501)  (49296)  (49294)



   OCT

     27...      <.0350   <.0200   <.0130   <.0350   <.0180   <.0500   <.0350   <.0260   <.0170   <.0150

   NOV

     25...      <.0350   <.0200   <.0130   <.0350   <.0180   <.170    <.140    <.0260   <.0170   <.0150

   DEC

     17...      <.0350   <.0200   <.0130   <.0350   <.0180   <.170    <.140    <.0260   <.0170   <.0150









                NORFLUR    ORY-              PIC-     PRO-     PRO-     TRI-

                 AZON,    ZALIN,  OXAMYL,   LORAM,   PHAM,    POXUR,  CLOPYR,   BDMC,   SAMPLE

                 WATER,   WATER,   WATER,   WATER,   WATER,   WATER,   WATER,  SURROG,  VOLUME,

                 FLTRD,   FLTRD,   FLTRD,   FLTRD,   FLTRD,   FLTRD,   FLTRD,   WATER,   SCHED-

                GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  GF 0.7m  UNFLTRD    ULE

        DATE      REC      REC      REC      REC      REC      REC      REC      REC      2051

                 (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)  PERCENT    (ML)

                (49293)  (49292)  (38866)  (49291)  (49236)  (38538)  (49235)  (99835)  (99847)



    OCT

      27...      <.0240   <.0190   <.0180   <.0500   <.0350   <.0350   <.0500  101        940

    NOV

      25...      <.0240   <.310    <.0180   <.0500   <.0350   <.0350   <.250    94.0      981

    DEC

      17...      <.0240   <.310    <.0180   <.0500   <.0350   <.0350   <.250     E.000    947









REMARKS.--The following data are for analytes from the National Water Quality laboratory (NWQL)

    schedule 79--organochlorine herbicides recoverable from whole water samples by gas chromatography/electron

    capture detector.  Samples are filtered through a glass-fiber membrane filter with openings that are 0.7

    microns in size to remove sediment and microorganisms.

	   The method detection limit (MDL) provides an index to indicate where measurement uncertainty is

    increased.  When an analyte is detected and all criteria for a positive result are met, the concentration is

    reported.  If the concentration is less than the MDL, an 'E' code will be reported with the value.  If the

    analyte is qualitatively identified as present, but the quantitative determination is substantially more

    uncertain, the NWQL will identify the result with an 'E' code even though the measured value is greater than

    the MDL.  A value reported with an 'E' code should be used with caution.  When no analyte is detected in a

    sample, the default reporting value is the MDL preceded by a less-than sign (<).





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



                           DIS-

                         CHARGE,

                          INST.                                                PIC-

                          CUBIC                                               LORAM

                           FEET  2,4,5-T   2,4-D,  SILVEX,  DICAMBA  2,4-DP   UNFILT

        DATE      TIME     PER    TOTAL    TOTAL    TOTAL    TOTAL    TOTAL   RECOVER

                          SECOND  (UG/L)   (UG/L)   (UG/L)  (UG/L)   (UG/L)   (UG/L)

                         (00061) (39740)  (39730)  (39760)  (82052)  (82183)  (39720)





    OCT

      27...       0910    14      <.010     .066    <.010    <.010    <.010    <.010

    NOV

      25...       1400    17      <.010     .019    <.010    <.010    <.010    <.010





                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, PA--Continued





REMARKS.--The following data are volatile organic compounds (VOC) detected at .2µG/L by purge and trap gas

    chromatography/mass spectrometric method.

	   The method detection limit (MDL) provides an index to indicate where measurement uncertainty is increased.

    When an analyte is detected and all criteria for a positive result are met, the concentration is reported.  If

    the concentration is less than the MDL, an 'E' code will be reported with the value.  If the analyte is

    qualitatively identified as present, but the quantitative determination is substantially more uncertain, the

    NWQL will identify the result with an 'E' code even though the measured value is greater than the MDL.  A

    value reported with an 'E' code should be used with caution.  When no analyte is detected in a sample, the

    default reporting value is the MDL preceded by a less-than sign (<).





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



                    DIS-              PH               BARO-             ALKA-

                  CHARGE,   SPE-     WATER             METRIC           LINITY

                   INST.    CIFIC    WHOLE             PRES-            WAT DIS  ACETONE

                   CUBIC    CON-     FIELD   TEMPER-    SURE   OXYGEN,  TOT IT    WATER    ACRO-   ACRYLO-

                    FEET    DUCT-   (STAND-   ATURE     (MM      DIS-    FIELD    WHOLE     LEIN   NITRILE BENZENE

 DATE      TIME     PER     ANCE      ARD     WATER      OF     SOLVED  MG/L AS   TOTAL    TOTAL    TOTAL    TOTAL

                   SECOND  (µS/CM)   UNITS)  (DEG C)    HG)     (MG/L)   CACO3   (µG/L)   (µG/L)   (µG/L)   (µG/L)

                  (00061)  (00095)  (00400)  (00010)  (00025)  (00300)  (39086)  (81552)  (34210)  (34215) (34030)



OCT

 21...     1300     9.8     1260      7.8     11.0      736      9.7      364     <4.90      --     <1.23    E.010

 27...     0909    14        770      8.1      9.0      728     10.2      150     <9.81      --     <2.45    <.064

NOV

 19...     0730    24        590      8.1      1.5      742     13.1      110     <4.90      --     <1.23    E.049

 25...     1401    17        608      8.3      1.5      738     15.0      110     <4.90      --     <1.23    E.021

DEC

 10...     1440   127        750      7.7      5.0      723     11.0       95     <4.90    <50.0    <1.23    E.028

 17...     1400    25        783      7.8      4.0      735     14.2      170     <4.90    <50.0    <1.23    E.033

MAR

 10...     0915    58        504      7.7      4.5      739     13.2       99     <4.90   <250      <1.23    E.009

APR

 16...     1145    96        380      7.6     11.5      728      9.6       80     <9.81      --     <2.45    <.064

AUG

 25...     1330    10        790      8.3     20.5      747      8.1      204     E2.80      --     <1.23    E.010

 25...     1715    43        580      8.2     20.5      746      8.1      146     E7.00      --     <1.23    E.014

 25...     1850   121        317      8.0     19.5      745      8.0       72     E6.60      --     <1.23    E.012

 25...     2100    67        337      7.9     19.5      745      7.8       80     E6.20      --     <1.23    E.012

 26...     0710    10        420      8.0     19.5      739      8.0       92     E2.00      --     <1.23    E.010





                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, PA--Continued





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



                           BENZENE  BENZENE  BENZENE  1,2,3-   BENZENE  BENZENE           BENZENE

         BROMO-             O-DI-   1,3-DI-  1,4-DI-   TRI-    1,2,4-   123-TRI  BENZENE  135-TRI          BENZENE

         BENZENE           CHLORO-  CHLORO-  CHLORO-  CHLORO     TRI-   METHYL-  124-TRI  METHYL           N-PROPY

         WATER,   CHLORO-   WATER    WATER    WATER   BENZENE  CHLORO-   WATER   METHYL    WATER   ETHYL-    WATER

         WHOLE,   BENZENE  UNFLTRD  UNFLTRD  UNFLTRD  WAT, WH  WAT UNF  UNFLTRD  UNFILT   UNFLTRD  BENZENE UNFLTRD

 DATE    TOTAL    TOTAL      REC      REC      REC     REC       REC    RECOVER  RECOVER    REC     TOTAL     REC

         (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)

         (81555)  (34301)  (34536)  (34566)  (34571)  (77613)  (34551)  (77221)  (77222)  (77226)  (34371) (77224)



OCT

 21...    <.036    <.028    <.048    <.054    <.050    <.266    <.188    <.124    <.056    <.044    <.030    <.042

 27...    <.072    <.056    <.096    <.108    <.100    <.532    <.376    <.248    <.112    <.088    <.060    <.084

NOV

 19...    <.036    <.028    <.048    <.054    <.050    <.266    <.188    <.124    E.034    <.044    <.030    <.042

 25...    <.036    <.028    <.048    <.054    <.050    <.266    <.188    <.124    <.056    <.044    <.030    <.042

DEC

 10...    <.036    <.028    <.048    <.054    E.029    <.266    <.188    <.124    E.070    E.020    E.020    E.010

 17...    <.036    <.028    <.048    <.054    <.050    <.266    <.188    <.124    <.056    <.044    <.030    <.042

MAR

 10...    <.036    <.028    <.048    <.054    <.050    <.266    <.188    <.124    <.056    <.044    <.030    <.042

APR

 16...    <.072    <.056    <.096    <.108    <.100    <.532    <.376    <.248    <.112    <.088    <.060    <.084

AUG

 25...    <.036    <.028    <.048    <.054    <.050    <.266    <.188    <.124    <.056    <.044    <.030    <.042

 25...    <.036    <.028    E.010    <.054    E.006    <.266    <.188    <.124    E.014    <.044    <.030    <.042

 25...    <.036    <.028    <.048    <.054    <.050    <.266    <.188    <.124    E.010    <.044    <.030    <.042

 25...    <.036    <.028    <.048    <.054    <.050    <.266    <.188    <.124    E.013    <.044    <.030    <.042

 26...    <.036    <.028    <.048    <.054    <.050    <.266    <.188    <.124    <.056    <.044    <.030    <.042



                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, PA--Continued





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



           ISO-            BENZENE  BENZENE  2BUTENE  CARBON    1,2-                                       ETHANE,

         PROPYL-  BENZENE    SEC     TERT-   TRANS-1    DI-    DIBROMO                    1,1,1-   1,1,2-    1112-

         BENZENE  N-BUTYL   BUTYL-   BUTYL-   4-DI-   SULFIDE  ETHANE            1,1-DI-   TRI-     TRI-    TETRA-

          WATER    WATER    WATER    WATER   CHLORO    WATER    WATER   CHLORO-  CHLORO-  CHLORO-  CHLORO- CHLORO-

          WHOLE   UNFLTRD  UNFLTRD  UNFLTRD  UNFLTRD   WHOLE    WHOLE   ETHANE   ETHANE   ETHANE   ETHANE  WAT UNF

 DATE     REC       REC      REC      REC    RECOVER   TOTAL    TOTAL    TOTAL    TOTAL   TOTAL     TOTAL     REC

         (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)

         (77223)  (77342)  (77350)  (77353)  (73547)  (77041)  (77651)  (34311)  (34496)  (34506)  (34511) (77562)



OCT

 21...    <.032    <.186    <.048    <.096    <.692    <.080    <.036    <.120    <.066    <.032    <.064    <.044

 27...    <.064    <.372    <.096    <.192   <1.38     <.160    <.072    <.240    <.132    <.064    <.128    <.088

NOV

 19...    <.032    <.186    <.048    <.096    <.692    <.080    <.036    <.120    <.066    <.032    <.064    <.044

 25...    <.032    <.186    <.048    <.096    <.692    <.080    <.036    <.120    <.066    <.032    <.064    <.044

DEC

 10...    <.032    <.186    <.048    <.096    <.692    E.032    <.036    <.120    <.066    <.032    <.064    <.044

 17...    <.032    <.186    <.048    <.096    <.692    <.080    <.036    <.120    <.066    <.032    <.064    <.044

MAR

 10...    <.032    <.186    <.048    <.096    <.692    <.080    <.036    <.120    <.066    <.032    <.064    <.044

APR

 16...    <.064    <.372    <.096    <.192   <1.38     <.160    <.072    <.240    <.132    <.064    <.128    <.088

AUG

 25...    <.032    <.186    <.048    <.096    <.692    <.370    <.036    <.120    <.066    <.032    <.064    <.044

 25...    <.032    <.186    <.048    <.096    <.692     .108    <.036    <.120    <.066    <.032    <.064    <.044

 25...    <.032    <.186    <.048    <.096    <.692    E.067    <.036    <.120    <.066    <.032    <.064    <.044

 25...    <.032    <.186    <.048    <.096    <.692    E.043    <.036    <.120    <.066    <.032    <.064    <.044

 26...    <.032    <.186    <.048    <.096    <.692    <.370    <.036    <.120    <.066    <.032    <.064    <.044



                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, PA--Continued





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



                ETHANE,  ETHANE                              CIS-1,2                             DI-ISO-

                1,1,2,2   HEXA-   BROMO-   METHYL   1,1-DI-   -DI-     TRANS-   TRI-    TETRA-   PROPYL-   ETHER

                 TETRA-  CHLORO-  ETHENE     ENE    CHLORO-  CHLORO-  1,2-DI-  CHLORO-  CHLORO-  ETHER,    ETHYL

                CHLORO-   WATER    WATER    CHLO-   ETHYL-   ETHENE   CHLORO-  ETHYL-   ETHYL-   WATER,    WATER

                WAT UNF  UNFLTRD  UNFLTRD   RIDE      ENE     WATER   ETHENE     ENE     ENE     UNFLTRD  UNFLTRD

        DATE      REC    RECOVER  RECOVER  TOTAL     TOTAL    TOTAL    TOTAL    TOTAL    TOTAL   RECOVER  RECOVER

                (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)    (µG/L)  (µG/L)   (µG/L)   (µG/L)

                (34516)  (34396)  (50002)  (34423)  (34501)  (77093)  (34546)  (39180)  (34475)  (81577)  (81576)



    OCT

      21...      <.132    <.362    <.100    <.382    <.044    <.038    <.032    <.038    <.038    <.098    <.170

      27...      <.264    <.724    <.200    <.764    <.088    <.076    <.064    <.076    <.076    <.196    <.340

    NOV

      19...      <.132    <.362    <.100    <.382    <.044    <.038    <.032    <.038    <.038    <.098    <.170

      25...      <.132    <.362    <.100    <.382    <.044    <.038    <.032    <.038    <.038    <.098    <.170

    DEC

      10...      <.132    <.362    <.100    <.382    <.044    <.038    <.032    <.038    <.038    <.098    <.170

      17...      <.132    <.362    <.100    <.382    <.044    <.038    <.032    <.038    <.038    <.098    <.170

    MAR

      10...      <.132    <.362    <.100    <.382    <.044    <.038    <.032    <.038    <.038    <.098    <.170

    APR

      16...      <.264    <.724    <.200    <.764    <.088    <.076    <.064    <.076    <.076    <.196    <.340

    AUG

      25...      <.132    <.362    <.100    <.382    <.044    <.038    <.032    <.038    <.102    <.098    <.170

      25...      <.132    <.362    <.100    <.382    <.044    <.038    <.032    <.038    <.102    <.098    <.170

      25...      <.132    <.362    <.100    <.382    <.044    <.038    <.032    <.038    <.102    <.098    <.170

      25...      <.132    <.362    <.100    <.382    <.044    <.038    <.032    <.038    <.102    <.098    <.170

      26...      <.132    <.362    <.100    <.382    <.044    <.038    <.032    <.038    <.102    <.098    <.170





                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, PA--Continued





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



                METHYL    ETHER    ETHER             FURAN,                             METHAC-  METHAC-

                 TERT-    TERT-    TERT-    FREON-   TETRA-   HEXA-   2-HEXA-   ISO-    RYLATE   RYLATE

                 BUTYL    BUTYL   PENTYL     113     HYDRO-  CHLORO-   NONE    DURENE   METHYL    ETHYL-

                 ETHER    ETHYL   METHYL    WATER    WATER    BUT-     WATER    WATER    WATER    WATER   METHYL-

                WAT UNF  UNFLTRD  UNFLTRD  UNFLTRD  UNFLTRD  ADIENE    WHOLE   UNFLTRD  UNFLTRD  UNFLTRD  BROMIDE

        DATE      REC    RECOVER  RECOVER    REC    RECOVER   TOTAL    TOTAL   RECOVER  RECOVER  RECOVER   TOTAL

                (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)

                (78032)  (50004)  (50005)  (77652)  (81607)  (39702)  (77103)  (50000)  (81597)  (73570)  (34413)



    OCT

      21...      <.112    <.054    <.112    <.032    <1.48    <.142    <.746    <.240    <.350    <.278    <.148

      27...      <.224    <.108    <.224    E.004    <2.30    <.284   <1.49     <.480    <.700    <.556    <.296

    NOV

      19...       .370    <.054    <.112    <.032    <1.15    <.142    <.746    <.240    <.350    <.278    <.148

      25...      <.112    <.054    <.112    <.032    <1.15    <.142    <.746    <.240    <.350    <.278    <.148

    DEC

      10...      E.089    <.054    <.112    <.032    <1.15    <.142    <.746    <.240    <.350    <.278    <.148

      17...      <.112    <.054    <.112    <.032    <1.15    <.142    <.746    <.240    <.350    <.278    <.148

    MAR

      10...      <.112    <.054    <.112    <.032    <1.15    <.142    <.746    <.240    <.350    <.278    <.148

    APR

      16...      <.224    <.108    <.224    <.064    <2.30    <.284   <1.49     <.480    <.700    <.556    <.296

    AUG

      25...      <.112    <.054    <.112    <.032    <8.79    <.142    <.746    <.240    <.350    <.278    <.148

      25...      <.166    <.054    <.112    <.032    <8.79    <.142    <.746    <.240    <.350    <.278    <.148

      25...      <.166    <.054    <.112    <.032    <8.79    <.142    <.746    <.240    <.350    <.278    <.148

      25...      <.166    <.054    <.112    <.032    <8.79    <.142    <.746    <.240    <.350    <.278    <.148

      26...      E.086    <.054    <.112    <.032    <8.79    <.142    <.746    <.240    <.350    <.278    <.148





                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, PA--Continued





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



                         METHANE             DI-              DI-

                          BROMO   CHLORO-  BROMO-    BROMO-  CHLORO-  METHYL   CARBON                      TRI-

                METHYL-  CHLORO-    DI-    METHANE    DI-    DI-      IODIDE    TETRA-                    CHLORO-

                 CHLO-     WAT     BROMO-   WATER   CHLORO-  FLUORO-   WATER    CHLO-   BROMO-   CHLORO-  FLUORO-

                 RIDE    UNFLTRD  METHANE   WHOLE   METHANE  METHANE  UNFLTRD   RIDE     FORM     FORM    METHANE

        DATE     TOTAL     REC     TOTAL   RECOVER   TOTAL   TOTAL    RECOVER   TOTAL    TOTAL    TOTAL    TOTAL

                (µG/L)   (µG/L)    (µG/L)  (µG/L)    (µG/L)  (µG/L)   (µG/L)    (µG/L)   (µG/L)  (µG/L)   (µG/L)

                (34418)  (77297)  (32105)  (30217)  (32101)  (34668)  (77424)  (32102)  (32104)  (32106)  (34488)



    OCT

      21...      <.254    <.044    <.182    <.050    <.048    <.096    <.076    <.088    <.104    <.052    <.092

      27...      <.508    <.088    <.364    <.100    <.096    <.192    <.152    <.176    <.208    <.104    <.184

    NOV

      19...      E.010    <.044    <.182    <.050    <.048    <.096    <.076    <.088    <.104    <.052    <.092

      25...      <.254    <.044    <.182    <.050    <.048    <.096    <.076    <.088    <.104    <.052    <.092

    DEC

      10...      <.254    <.044    <.182    <.050    <.048    <.096    <.076    <.088    <.104    <.052    <.092

      17...      <.254    <.044    <.182    <.050    <.048    <.096    <.076    <.088    <.104    <.052    <.092

    MAR

      10...      <.254    <.044    <.182    <.050    <.048    <.096    <.076    <.088    <.104    <.052    <.092

    APR

      16...      <.508    <.088    <.364    <.100    <.096    <.192    <.152    <.176    <.208    <.104    <.184

    AUG

      25...      <.254    <.044    <.182    <.050    <.048    <.138    <.208    <.088    <.104    <.052    <.092

      25...      E.018    <.044    <.182    <.050    <.048    <.138    <.208    <.088    <.104    E.003    <.092

      25...      E.021    <.044    <.182    <.050    <.048    <.138    <.208    <.088    <.104    E.005    <.092

      25...      E.018    <.044    <.182    <.050    <.048    <.138    <.208    <.088    <.104    <.052    <.092

      26...      E.013    <.044    <.182    <.050    <.048    <.138    <.208    <.088    <.104    <.052    <.092





                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, PA--Continued





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



                METHYL    METH-   METHYL-  METHYL                     2,2-DI            123-TRI  DIBROMO  PROPENE

                 ACRY-   ACRYLO-  ETHYL-    ISO-     PREH-            CHLORO-  1,3-DI-  CHLORO-  CHLORO-    3-

                 LATE    NITRITE  KETONE   BUTYL    NITENE   1,2-DI-   PRO-    CHLORO-  PROPANE  PROPANE  CHLORO-

                 WATER    WATER    WATER   KETONE    WATER   CHLORO-   PANE    PROPANE   WATER    WATER    WATER

                UNFLTRD  UNFLTRD   WHOLE   WAT.WH.  UNFLTRD  PROPANE  WAT, WH  WAT. WH   WHOLE    WHOLE   UNFLTRD

        DATE    RECOVER  RECOVER   TOTAL    TOTAL   RECOVER   TOTAL    TOTAL    TOTAL    TOTAL   TOT.REC  RECOVER

                (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)

                (49991)  (81593)  (81595)  (78133)  (49999)  (34541)  (77170)  (77173)  (77443)  (82625)  (78109)



    OCT

      21...      <.612    <.570   <1.65     <.374    <.230    <.068    <.078    <.116    <.070    <.214    <.196

      27...     <1.22    <1.14    <3.30     <.748    <.460    <.136    <.156    <.232    <.140    <.428    <.392

    NOV

      19...      <.612    <.570   <1.65     <.374    <.230    <.068    <.078    <.116    <.070    <.214    <.196

      25...      <.612    <.570   <1.65     <.374    <.230    <.068    <.078    <.116    <.070    <.214    <.196

    DEC

      10...      <.612    <.570   <1.65     E.260    <.230    <.068    <.078    <.116    <.070    <.214    <.196

      17...      <.612    <.570   <1.65     <.374    <.230    <.068    <.078    <.116    <.070    <.214    <.196

    MAR

      10...      <.612    <.570   <1.65     <.374    <.230    <.068    <.078    <.116    <.070    <.214    <.196

    APR

      16...     <1.22    <1.14    <3.30     <.748    <.460    <.136    <.156    <.232    <.140    <.428    <.392

    AUG

      25...     <1.36     <.570   <1.65     <.374    <.230    <.068    <.078    <.116    <.162    <.214    <.196

      25...     <1.36     <.570   <1.65     <.374    <.230    <.068    <.078    <.116    <.162    <.214    <.196

      25...     <1.36     <.570   <1.65     <.374    <.230    <.068    <.078    <.116    <.162    <.214    <.196

      25...     <1.36     <.570    E.670    <.374    <.230    <.068    <.078    <.116    <.162    <.214    <.196

      26...     <1.36     <.570   <1.65     <.374    <.230    <.068    <.078    <.116    <.162    <.214    <.196





                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, PA--Continued





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



                1,1-DI                                         O-                       P-ISO-             META/

                CHLORO-    CIS     TRANS-                    CHLORO-  TOLUENE  TOLUENE  PROPYL-    O-      PARA-

                 PRO-    1,3-DI-  1,3-DI-                    TOLUENE  P-CHLOR  O-ETHYL  TOLUENE  XYLENE   XYLENE

                PENE,    CHLORO-  CHLORO-                     WATER    WATER    WATER    WATER    WATER    WATER

                WAT, WH  PROPENE  PROPENE  STYRENE  TOLUENE   WHOLE   UNFLTRD  UNFLTRD   WHOLE    WHOLE   UNFLTRD

        DATE    TOTAL     TOTAL    TOTAL    TOTAL    TOTAL    TOTAL     REC    RECOVER   REC      TOTAL     REC

                (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)   (µG/L)    (µG/L)

                (77168)  (34704)  (34699)  (77128)  (34010)  (77275)  (77277)  (77220)  (77356)  (77135)  (85795)



    OCT

      21...      <.026    <.092    <.134    <.042    E.030    <.042    <.056    <.100    <.110    <.064    <.064

      27...      <.052    <.184    <.268    <.084    <.076    <.084    <.112    <.200    <.220    <.128    <.128

    NOV

      19...      <.026    <.092    <.134    <.042     .098    <.042    <.056    E.007    <.110    <.064    E.061

      25...      <.026    <.092    <.134    <.042    E.026    <.042    <.056    <.100    <.110    <.064    <.064

    DEC

      10...      <.026    <.092    <.134    E.009     .115    <.042    <.056    E.016    <.110    E.046    E.084

      17...      <.026    <.092    <.134    <.042    E.042    <.042    <.056    <.100    <.110    <.064    E.032

    MAR

      10...      <.026    <.092    <.134    <.042    <.038    <.042    <.056    <.100    <.110    <.064    <.064

    APR

      16...      <.052    <.184    <.268    <.084    E.180    <.084    <.112    <.200    <.220    <.128    <.128

    AUG

      25...      <.026    <.092    <.134    E.006    <.054    <.042    <.056    <.100    E.008    <.064    <.064

      25...      <.026    <.092    <.134    <.042    <.054    <.042    <.056    <.100    E.020    E.006    E.013

      25...      <.026    <.092    <.134    <.042    <.054    <.042    <.056    <.100    E.014    <.064    <.064

      25...      <.026    <.092    <.134    <.042    <.054    <.042    <.056    <.100    E.013    <.064    E.019

      26...      <.026    <.092    <.134    <.042    <.054    <.042    <.056    <.100    E.007    <.064    <.064





                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, 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     1010     958     987       ---     ---     ---       ---     ---     ---       ---     ---     ---

   2     1110     966    1050       ---     ---     ---       ---     ---     ---       ---     ---     ---

   3     1110     715     998       ---     ---     ---       ---     ---     ---       ---     ---     ---

   4      715     681     691       ---     ---     ---       ---     ---     ---       ---     ---     ---

   5      703     689     694       ---     ---     ---       ---     ---     ---       ---     ---     ---



   6      719     699     712       ---     ---     ---       ---     ---     ---       ---     ---     ---

   7      736     714     730       ---     ---     ---       ---     ---     ---       ---     ---     ---

   8      747     732     742       ---     ---     ---       ---     ---     ---       ---     ---     ---

   9      766     745     758       ---     ---     ---       ---     ---     ---       ---     ---     ---

  10      779     760     768       ---     ---     ---       ---     ---     ---       ---     ---     ---



  11      792     776     783       ---     ---     ---       ---     ---     ---       ---     ---     ---

  12      792     782     789       ---     ---     ---       ---     ---     ---       ---     ---     ---

  13      794     782     788       ---     ---     ---       ---     ---     ---       ---     ---     ---

  14      801     793     796       ---     ---     ---       ---     ---     ---       ---     ---     ---

  15      802     796     799       ---     ---     ---       ---     ---     ---       ---     ---     ---



  16      809     802     806       ---     ---     ---       ---     ---     ---       ---     ---     ---

  17      925     795     825       ---     ---     ---       ---     ---     ---       ---     ---     ---

  18     1030     925     997       ---     ---     ---       ---     ---     ---       ---     ---     ---

  19     1030    1020    1030       ---     ---     ---       ---     ---     ---       ---     ---     ---

  20     1450    1020    1150       ---     ---     ---       ---     ---     ---       ---     ---     ---



  21      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  22      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  23      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  24      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  25      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---



  26      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  27      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  28      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  29      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  30      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---

  31      ---     ---     ---       ---     ---     ---       ---     ---     ---       ---     ---     ---



 MONTH   1450     681     845       ---     ---     ---       ---     ---     ---       ---     ---     ---



                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, 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      ---     ---     ---       426     408     414       714     652     690       459     441     453

   2      ---     ---     ---       531     425     471       722     696     709       455     384     428

   3      ---     ---     ---       565     529     559       752     721     731       460     426     444

   4      ---     ---     ---       605     565     588       762     735     747       482     458     467

   5      ---     ---     ---       600     590     596       749     736     742       506     482     490



   6      ---     ---     ---       607     474     552       761     749     756       578     505     531

   7      ---     ---     ---       485     426     449       803     734     758       606     576     587

   8      ---     ---     ---       442     393     427       ---     ---     ---       603     505     541

   9      ---     ---     ---       452     394     413       756     483     646       592     543     563

  10      ---     ---     ---       517     452     484       483     406     438       642     590     607



  11      ---     ---     ---       542     517     530       524     474     500       700     642     668

  12      ---     ---     ---       581     457     543       557     524     541       753     697     717

  13      705     570     639       481     459     467       580     557     570       801     733     764

  14      577     498     532      1040     440     545       631     574     612       855     774     812

  15      506     488     497       919     487     615       576     373     443       874     805     840



  16      681     485     554       487     463     473       527     369     441       861     768     828

  17      660     479     606       527     463     503       461     380     418       848     753     812

  18      524     426     492       688     527     575       384     369     375       830     705     783

  19      459     422     440       686     676     679       395     261     343       864     824     841

  20      467     399     437       686     535     632       348     261     309       873     818     847



  21      408     399     403       545     411     487       363     348     356       919     864     895

  22      412     404     408       484     383     414       372     357     361       933     912     920

  23      507     410     454       507     405     445       381     369     373       925     802     873

  24      543     507     527       546     507     523       406     381     392       853     774     816

  25      568     543     557       566     543     552       423     400     409       840     759     817



  26      585     568     578       586     566     576       428     181     322       955     773     866

  27      592     470     533       613     586     600       348     206     293       968     939     953

  28      474     416     442       613     595     602       400     348     374       988     932     960

  29      ---     ---     ---       628     603     616       433     400     417      1030     988    1000

  30      ---     ---     ---       637     627     632       445     428     435      1030     938     996

  31      ---     ---     ---       697     627     665       ---     ---     ---       983     898     936



 MONTH    705     399     506      1040     383     536       803     181     500      1030     384     744



                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, 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      931     607     742       517     318     418       830     814     822       865     852     856

   2      973     878     933       584     476     521       833     814     826       882     854     871

   3      965     906     938       675     555     603       828     811     817       859     808     831

   4     1010     925     958       743     623     675       814     803     810       890     815     838

   5     1030     978     997       753     661     718       906     803     883       943     890     924



   6     1020     999    1010       729     651     676       880     862     871       960     943     951

   7      999     934     965       724     642     672       868     858     865       963     916     941

   8      939     700     886       743     293     466       925     868     897       963     928     938

   9      869     638     781       620     456     534       899     871     886       939     922     931

  10      980     737     830       674     613     637       951     875     910       925     792     869



  11      984     910     966       693     645     660      1020     920     957       792     756     770

  12      981     945     974       655     613     637      1020     973     998       847     774     817

  13      982     499     839       629     590     604      1010     969     986       887     846     873

  14      753     527     641       638     595     609       974     959     968       906     887     898

  15      834     300     668       764     615     662       ---     ---     ---       904     894     898



  16      631     394     532       820     764     795       ---     ---     ---       925     888     897

  17      643     434     542       834     818     827       ---     ---     ---       957     925     948

  18      759     627     684       830     804     819       ---     ---     ---       990     950     960

  19      786     313     555       846     813     827       ---     ---     ---      1020     933    1000

  20      488     351     417       867     845     860       ---     ---     ---       997     835     905



  21      572     448     481       895     867     881       ---     ---     ---       835     247     408

  22      786     561     663       899     864     888       ---     ---     ---       572     466     533

  23      862     763     801       901     846     882       ---     ---     ---       608     570     586

  24      923     862     886       891     876     883       ---     ---     ---       636     608     623

  25      964     923     950       877     830     856       ---     ---     ---       658     636     647



  26      983     946     965       856     819     842       571     348     491       678     657     670

  27      976     921     960       836     780     806       716     571     643       686     667     678

  28      977     923     955       835     804     820       816     716     760       698     678     691

  29     1030     902     973       827     807     818       846     816     834       726     687     712

  30     1040     289     844       817     801     808       859     844     850       ---     ---     ---

  31      ---     ---     ---       814     803     810       862     847     855       ---     ---     ---



 MONTH   1040     289     811       901     293     726      1020     348     846      1020     247     809





                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, 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     13.5    11.5    13.0       9.0     6.0     7.5       8.0     5.5     6.5        .0      .0      .0

   2     13.0    10.0    11.0       9.5     7.5     9.0       6.0     4.5     5.5        .0      .0      .0

   3     14.5    10.5    12.5       8.5     7.0     7.5       6.0     3.5     5.0       3.5      .0     1.0

   4     16.5    12.0    14.0       7.5     5.5     6.5       7.5     6.0     7.0       6.0     3.5     5.0

   5     18.0    14.5    16.0       6.5     4.5     5.5       6.5     3.0     5.0       7.5     3.5     6.0



   6     18.5    14.5    16.5       6.5     3.5     5.0       3.0      .5     1.5       8.5     7.5     8.0

   7     18.0    14.5    16.5       7.0     6.0     6.5       2.0      .0     1.0       9.5     8.5     9.0

   8     18.0    14.5    16.5       8.0     7.0     7.5       5.0     2.0     3.0       9.5     9.0     9.5

   9     18.0    14.5    16.5       9.5     8.0     8.5       5.5     4.0     4.5       9.0     6.5     8.0

  10     19.0    15.0    17.0       8.0     7.0     7.5       5.5     4.5     5.0       6.5     5.0     6.0



  11     15.0    11.5    13.0       7.5     6.0     7.0       5.5     5.0     5.0       5.0     3.0     4.0

  12     14.0    10.0    12.0       6.0     3.5     5.0       5.0     3.0     4.0       5.0     2.5     3.5

  13     15.5    11.5    13.5       4.5     2.0     3.5       3.5     2.5     3.0       6.0     3.0     5.0

  14     15.0    12.0    14.0       5.5     2.0     4.0       3.0     2.0     2.5       3.0     1.5     2.5

  15     12.0     8.5    10.0       5.5     4.5     5.5       2.5      .5     1.5       5.0     2.5     4.0



  16     11.0     8.5     9.5       4.5     3.5     4.0       4.0      .0     1.5       5.0     3.5     4.5

  17     10.0     7.0     8.5       4.0     2.0     3.0       4.5     2.5     3.5       3.5     3.0     3.5

  18      9.5     7.0     8.5       3.0      .0     1.5       4.0     2.5     3.5       3.0     2.5     2.5

  19     10.0     6.5     8.0       4.5     1.5     3.0       4.5     2.0     3.0       4.5     1.5     3.0

  20     11.0     6.5     8.5       5.0     2.5     3.5       2.5      .5     1.5       8.0     3.0     3.5



  21     12.0     8.5    10.0       5.5     3.0     4.5       3.0     1.5     2.5       3.5     2.0     2.5

  22     10.5     8.0     9.0       6.5     5.5     6.0       5.5     1.0     3.0       4.5     3.0     3.5

  23      9.5     7.0     8.5       6.0     4.5     5.5       6.0     5.0     5.5       4.5     3.5     4.0

  24     10.5     8.0     9.0       4.5     1.5     3.0       6.0     4.5     5.5       3.5     2.5     3.0

  25     10.0     8.0     9.0       4.5      .0     2.0       5.5     4.5     5.0       3.0     2.0     2.5



  26      9.0     8.5     8.5       7.0     4.5     6.0       5.0     3.5     4.0       5.5     2.0     3.5

  27      9.5     8.5     9.0       7.5     6.0     6.5       3.5     2.5     3.0       5.0     3.5     4.5

  28      9.0     7.5     8.5       6.5     5.0     6.0       2.5     1.0     1.5       6.5     4.5     5.0

  29      9.5     7.0     8.5       8.0     6.5     7.5       1.0      .0      .5       6.5     4.5     5.5

  30     10.5     7.5     9.0       9.0     7.5     8.0       1.5      .0      .5       6.0     3.0     4.5

  31      9.5     7.0     8.0       ---     ---     ---        .0      .0      .0       3.0     1.5     2.5



 MONTH   19.0     6.5    11.4       9.5      .0     5.5       8.0      .0     3.4       9.5      .0     4.2



                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, 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      3.0      .0     1.5       7.5     5.5     6.5      16.0    13.5    14.5      13.0    11.5    12.5

   2      5.5      .5     2.5       7.0     5.5     6.0      13.5    10.5    12.0      13.0    11.5    12.5

   3      5.5     4.5     5.0       6.0     4.5     5.0      13.0     8.5    10.5      15.0    11.5    13.0

   4      5.0     3.0     4.0       6.0     4.5     5.5      10.5     9.0     9.5      16.0    12.5    14.0

   5      4.5     3.0     4.0       6.5     4.5     5.5      12.5     8.0    10.0      15.0    13.0    14.0



   6      4.0     2.0     3.0       6.5     4.0     5.5      12.5     7.0     9.5      16.5    12.5    14.5

   7      3.5      .0     1.5       8.0     3.5     5.5      12.5     7.0    10.0      16.0    13.0    14.5

   8      4.0      .0     1.5       7.0     5.5     6.5      13.5    10.0    11.5      15.5    14.0    14.5

   9      5.5      .0     2.5       9.5     6.5     7.5      12.0    10.0    11.0      17.0    13.5    15.0

  10      6.5     3.0     4.5       7.5     2.5     4.5      12.5     8.5    10.0      16.5    14.0    15.0



  11      7.0     5.0     6.0       3.5     1.0     2.0      12.5     6.5     9.5      15.0    14.0    14.5

  12      6.5     5.0     6.0       3.0      .0     1.5      14.0     7.0    10.0      15.0    13.5    14.0

  13      5.0     3.5     4.0       3.0      .0     1.0      14.5     8.0    11.0      18.0    12.5    15.0

  14      4.5     2.5     3.5       5.0     1.5     3.0      13.5    11.5    12.5      19.0    14.0    16.5

  15      4.0      .5     2.5       4.5     1.0     2.5      14.5    11.0    12.5      22.5    14.5    18.5



  16      6.0      .5     3.0       6.0      .5     3.0      14.0    11.5    12.5      21.5    17.0    20.0

  17      5.5     5.0     5.5       6.0     1.5     4.0      13.0     9.5    11.5      22.5    17.5    20.0

  18      6.5     5.0     6.0       7.5     4.5     6.0      12.0     7.0    10.0      20.5    15.5    17.5

  19      6.0     5.5     5.5      10.5     7.5     8.5      11.0     9.5    10.0      19.0    14.0    16.5

  20      6.0     5.5     5.5       9.5     7.5     8.5      13.5     8.5    10.5      19.5    15.5    17.5



  21      5.5     5.0     5.0       8.5     5.5     7.0      13.5     7.5    10.5      18.5    14.0    16.5

  22      6.0     4.0     5.0       5.5     3.5     4.5      13.5     9.0    11.5      18.5    12.5    15.5

  23      6.0     4.0     5.0       8.0     3.0     5.0      14.0     9.5    11.5      20.5    14.5    17.0

  24      7.0     5.0     6.0       7.0     3.5     5.0      15.5     8.0    12.0      18.0    14.0    16.0

  25      6.5     5.0     5.5       9.0     3.0     6.0      16.5     9.5    13.0      19.0    15.5    17.5



  26      7.5     4.0     5.5      13.0     7.0    10.0      13.5     9.5    11.5      17.0    14.0    16.0

  27      7.0     5.5     6.0      15.5    10.0    12.5      13.5     8.0    10.5      18.0    13.0    15.5

  28      6.5     5.5     6.0      16.0    11.0    13.5      14.0     7.5    10.5      17.5    13.0    15.5

  29      ---     ---     ---      17.0    12.5    14.5      13.5     8.5    11.0      21.0    14.0    17.5

  30      ---     ---     ---      17.0    12.0    14.5      13.0    11.5    12.0      24.5    18.0    21.0

  31      ---     ---     ---      17.5    12.5    15.0       ---     ---     ---      24.5    19.0    21.5



 MONTH    7.5      .0     4.3      17.5      .0     6.6      16.5     6.5    11.1      24.5    11.5    16.1



                                                 DEER CREEK BASIN



                               03049646  DEER CREEK NEAR DORSEYVILLE, 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     20.0    14.5    17.5      22.5    17.5    19.5      24.5    16.5    20.5      24.0    15.5    19.0

   2     18.0    13.5    15.5      23.0    17.0    20.5      26.0    15.5    20.0      22.0    18.5    20.0

   3     16.0    13.0    14.5      24.0    18.0    21.0      26.5    16.0    20.5      21.0    15.0    18.0

   4     16.0    12.0    13.5      23.0    19.5    20.5      28.0    17.0    22.0      21.0    14.5    17.5

   5     15.5    12.0    14.0      24.5    18.5    20.5      26.0    19.0    22.5      21.5    15.0    18.5



   6     16.5    12.5    14.5      24.5    17.5    21.0      26.5    19.0    22.5      24.0    15.5    19.0

   7     15.0    12.0    13.5      23.5    19.0    21.0      26.0    19.5    22.5      22.5    19.0    20.0

   8     18.0    11.5    15.0      23.0    20.5    21.5      27.5    20.0    23.5      20.0    15.0    17.0

   9     20.0    11.5    13.5      24.5    20.0    22.0      29.5    21.5    25.0      17.0    12.5    15.0

  10     16.0    14.0    14.5      24.0    19.5    22.0      28.0    23.0    24.5      17.5    12.0    14.5



  11     15.5    13.0    14.0      23.0    17.0    20.5      26.5    21.0    23.5      18.5    13.0    15.5

  12     19.5    15.0    16.5      23.0    16.5    20.0      25.0    19.5    22.0      21.0    15.0    17.5

  13     18.5    16.0    17.0      25.0    17.0    21.0      25.0    18.0    21.5      23.5    16.5    19.0

  14     18.0    15.5    16.5      24.0    19.0    21.5      24.5    19.5    22.0      23.5    16.0    19.5

  15     18.5    14.0    16.0      23.5    21.0    22.0      26.0    20.5    22.5      24.0    18.5    21.0



  16     19.0    16.5    17.5      24.0    21.0    22.0      27.5    20.5    23.5      23.5    19.5    21.5

  17     19.5    16.5    17.5      25.0    21.0    23.0      25.5    22.0    23.5      22.5    20.5    21.0

  18     20.5    16.5    18.5      25.5    18.5    22.0      25.0    21.0    22.5      21.5    16.5    19.5

  19     20.5    17.0    18.5      27.0    18.5    22.0      22.5    16.5    20.0      23.0    18.0    20.0

  20     23.5    18.5    20.5      25.0    21.5    23.0      22.5    14.5    18.5      23.0    19.5    21.0



  21     24.5    18.5    21.0      25.5    21.5    23.5      23.0    16.0    19.5      22.5    20.5    21.0

  22     24.0    20.5    21.5      25.5    21.5    24.0      27.0    19.5    22.5      22.0    19.5    21.0

  23     20.5    17.5    18.5      25.5    22.0    24.0      28.0    19.5    23.0      19.5    14.5    17.0

  24     20.5    16.5    18.5      24.0    20.0    22.0      26.5    21.5    23.0      16.0    11.0    13.5

  25     20.5    16.5    18.5      24.5    19.5    21.5      21.5    19.5    20.0      19.0    15.0    16.0



  26     26.0    17.5    20.5      25.5    18.5    21.5      23.0    19.0    20.5      21.0    16.0    18.0

  27     25.0    22.0    23.0      24.5    17.5    21.0      23.0    18.5    21.0      22.0    18.0    20.0

  28     24.0    21.0    22.5      25.0    18.5    21.5      23.0    18.0    21.0      21.0    18.0    19.5

  29     23.5    17.0    20.5      25.0    20.5    22.5      24.5    20.5    22.0      18.5    12.5    15.0

  30     21.0    16.0    17.5      24.0    19.0    21.5      25.0    18.5    21.0      19.5    15.0    16.5

  31      ---     ---     ---      24.0    18.5    21.0      24.5    19.5    21.5       ---     ---     ---



 MONTH   26.0    11.5    17.4      27.0    16.5    21.6      29.5    14.5    21.9      24.0    11.0    18.4









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