Dunkard Creek at Shannopin, PA

1996 Water-Year
Basic Fixed-Site Water-Quality Records
[drop]



                                             MONONGAHELA RIVER BASIN

                                     03072000  DUNKARD CREEK AT SHANNOPIN, PA
                                   (National water-quality assessment station)

LOCATION.--Lat 39`45'33", long 79`58'15", Greene County, Hydrologic Unit 05020005, on left bank 1,300 ft
   upstream from highway bridge at mine buildings at Shannopin, 1.2 mi north of Dunkard, 3.5 mi upstream from
   mouth, and 4 mi southwest of Greensboro.

DRAINAGE AREA.--229 mi2.

                                             WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--October 1940 to current year.  Prior to December 1940 monthly discharge only, published in
   WSP 1305.

REVISED RECORDS.--WSP 1505:   1955.

GAGE.--Water-stage recorder.  Datum of gage is 806.25 ft above sea level (levels by U.S. Army Corps of Engineers).

REMARKS.--Records good except for estimated daily discharges, which are fair.  Some regulation at low flow by
   mine pumpage above station.  Several measurements of water temperature were made during the year.  U.S. Army
   Corps of Engineers satellite telemeter at station.

PEAK DISCHARGES FOR CURRENT YEAR.--Peak discharges greater than a base discharge of 4,000 ft3/s and maximum (*):

                      Discharge    Gage height                                          Discharge    Gage height
 Date        Time      (ft3/s)        (ft)                         Date        Time      (ft3/s)        (ft)

Jan. 19      1800      *10,200        a11.50                      July  19     1100       8,030         10.55
Mar.  6     Unknown    Unknown       Unknown                      Sept. 17     1600       4,110          8.51

                 DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1995 TO SEPTEMBER 1996
                                               DAILY MEAN VALUES

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

  1       8.8      9.3       51      e68      306     1170      445     e600      256       35     1270       20
  2       5.9     12         48     e100     e220      790      776     e960      193       31      584       17
  3       3.3     16         44     e600     e170      575      672      675      156      275      333       16
  4       3.2     14         44      726     e140      403      542      533      147      236      216       20
  5       6.0     12         43      398     e125      340      592     1070      139      114      155       24

  6      21       11         43      241     e120    e4100      576     1980      116       71      121       29
  7      31       11         44      160     e130     2580      510     1080       99       51      102       44
  8      24       15         43     e150     e160     1640      426      908       96       44       91       54
  9      15       22         36     e135    e1300      990      362     1530      129       42      228       55
 10      11       28         23     e130     1080     e560      308     1430       96       44     e170       65

 11       8.0     29         21     e120      763     e540      265     1070       91       36     e110       89
 12       7.6     32         24     e115      580     e480      231     2130       85       30      e90       56
 13      11       86         22     e110      440     e460      208     1140       77       25     e280       86
 14      14       78         25     e100      365     e450      193      737       75       19     e180      255
 15      26      137         38     e120     e300      576      174      575       83       20      117      126

 16      76      175        854     e170     e250      732      284     1410       99       25       91       91
 17      50      119       e450     e700     e210      561      540     2150       67       33       76     2390
 18      31      110       e330    e2400     e190      471      507     1350       55      129       64     1270
 19      23      261       e260    e7200     e170      438      416      801       50     5810       52      486
 20      17      260       e220     2500     e350     2380      347      554      110     2110       47      259

 21      18      185       e190      962     2070     1740      288      413      145      555       43      174
 22      14      130       e160      612     1190     1100      240      326       86      297       41      131
 23      12       92       e140      474      769      833      221      247       61     e220       60      115
 24      18       75       e125     1710      572      859      215      202       80     e150       51      102
 25      23       74       e115     2010      439      864      187      177      224     e250       42       83

 26      21       67       e105      973      359      835      175      147     e150     e420       38       71
 27      17       60        e96     1700     1350      637      180      143      e80      193       34       62
 28      14       52        e86     1460     3380      538      149      230       63      128       34      235
 29      12       51        e80      823     2020      615      140      356       52       95       31     1900
 30      11       51        e76      587      ---      528      214      781       43      558       31      879
 31       9.9      ---      e72      470      ---      448      ---      398      ---     2260       28      ---

TOTAL   562.7   2274.3     3908    28024    19518    29233    10383    26103     3203    14306     4810     9204
MEAN     18.2     75.8      126      904      673      943      346      842      107      461      155      307
MAX        76      261      854     7200     3380     4100      776     2150      256     5810     1270     2390
MIN       3.2      9.3       21       68      120      340      140      143       43       19       28       16
CFSM      .08      .33      .55     3.95     2.94     4.12     1.51     3.68      .47     2.02      .68     1.34
IN.       .09      .37      .63     4.55     3.17     4.75     1.69     4.24      .52     2.32      .78     1.50

   a  Maximum gage height, 11.59 ft, Jan. 19 (backwater from ice).
   e  Estimated.
                                             MONONGAHELA RIVER BASIN

                               03072000  DUNKARD CREEK AT SHANNOPIN, PA--Continued

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1941 - 1996, BY WATER YEAR (WY)

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

MEAN     69.2      161      340      435      508      621      470      327      179     90.0     80.5     76.6
MAX       381     1149     1071     1050     1100     1475     1033      903      877      461      890      573
(WY)     1955     1986     1991     1994     1956     1994     1948     1968     1981     1996     1980     1975
MIN      1.73     2.44     7.46     26.5     63.5      112     80.9     57.4     10.2     4.62     2.45     2.39
(WY)     1952     1954     1954     1967     1954     1987     1971     1986     1966     1962     1962     1953

SUMMARY STATISTICS           FOR 1995 CALENDAR YEAR        FOR 1996 WATER YEAR           WATER YEARS 1941 - 1996

ANNUAL TOTAL                       71330.2                   151529.0
ANNUAL MEAN                          195                        414                        279
HIGHEST ANNUAL MEAN                                                                        462              1994
LOWEST ANNUAL MEAN                                                                         104              1954
HIGHEST DAILY MEAN                  2710     May 14           e7200     Jan 19           11200       Mar  5 1963
LOWEST DAILY MEAN                      2.6   Sep  7,8             3.2   Oct  4                .50    Aug 27 1944
ANNUAL SEVEN-DAY MINIMUM               3.6   Sep  5              11     Oct  1                .73    Aug 25 1944
INSTANTANEOUS PEAK FLOW                                       10200     Jan 19           17600       Aug 18 1980
INSTANTANEOUS PEAK STAGE                                         11.50  Jan 19              14.27    Aug 18 1980
INSTANTANEOUS LOW FLOW                                            3.2   Oct  3,4,5            .40    Aug 28 1944
ANNUAL RUNOFF (CFSM)                    .85                       1.81                       1.22
ANNUAL RUNOFF (INCHES)                11.59                      24.62                      16.57
10 PERCENT EXCEEDS                   548                       1080                        686
50 PERCENT EXCEEDS                    78                        148                         97
90 PERCENT EXCEEDS                     7.7                       21                          8.0

   e  Estimated.
                                             MONONGAHELA RIVER BASIN

                               03072000  DUNKARD CREEK AT SHANNOPIN, PA--Continued

                                              WATER-QUALITY RECORDS
PERIOD OF RECORD.--April 1996 to current year.

REMARKS.--All water-quality samples collected and analyzed by the U.S. Geological Survey.  Additional sites in the
   fixed-station network are shown in figure 4, page 26

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

                   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)

APR
  30...    0945    169       723      7.8     16.0     727      9.4      190       2.4      54     14       67
MAY
  30...    1145    750       388      7.5     16.0     741      9.3      110       2.8      32      7.2     31
JUN
  27...    1045     80       731      7.5     21.5     744      8.4      190       5.0      55     13       68
JUL
  25...    1045    360       775      7.9     22.0     736      8.7      200       2.2      58     14       78
AUG
  12...    1110     90       706      7.9     21.0     737      7.7      190       2.8      56     13       64
SEP
  18...    1030   1220       289      7.8     16.5     737      9.0       84       1.6      25      5.3     18


                     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)

APR
  30...        1.7      92     230       20        0.10    1.2      458     <0.010    0.060    0.020     0.20
MAY
  30...        1.7      58      91       15        0.10    6.7      241      0.020    0.340    0.060     0.80
JUN
  27...        2.9      93       --       --       --      5.5      --       0.030    0.650    0.050     0.40
JUL
  25...        2.5     102     250       19        0.20    7.3      500      0.020    0.420    0.090    <0.20
AUG
  12...        2.5      84     230       16        0.20    3.7      452      0.010    0.300    0.030     0.30
SEP
  18...        2.2     108      67        6.5      0.10    7.7      164      0.010    0.730    0.050     0.40


             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)

APR
  30...      <0.20     0.020    0.020   <0.010    160       53       82       2.0     0.70     13        48
MAY
  30...       0.30     0.110   <0.010   <0.010     70       34       30       2.9     1.9      68        95
JUN
  27...       0.20     0.020   <0.010   <0.010    117        8.0    100       3.1     0.70     23        99
JUL
  25...      <0.20    <0.010   <0.010   <0.010    145       15       61       2.2     0.40      9        96
AUG
  12...       0.20    <0.010   <0.010   <0.010    131       19       74       2.6     0.60      6        86
SEP
  18...       0.30     0.040    0.010    0.010     47       45       26       3.9     1.0      47        98





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