Youghiogheny River at Sutersville, PA

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

--------
                                             MONONGAHELA RIVER BASIN

                                 03083500  YOUGHIOGHENY RIVER AT SUTERSVILLE, PA
                                   (National water-quality assessment station)

LOCATION.--Lat 40`14'24", long 79`48'24", Allegheny County, Hydrologic Unit 05020006, on left bank 500 ft upstream
   from highway bridge at Sutersville, 2.1 mi downstream from Sewickley Creek, at mile 15.2.

DRAINAGE AREA.--1,715 mi2.

                                             WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--October 1920 to current year.  Monthly discharge only for some periods, published in WSP 1305.

REVISED RECORDS.--WSP 743:   Drainage area.  WSP 1305:   1924, 1926 (M), 1931 (M).  WSP 1435:   1935-36.

GAGE.--Water-stage recorder.  Datum of gage is 733.36 ft above sea level.  Prior to June 1, 1939, nonrecording
   gage at site 500 ft downstream at same datum.

REMARKS.--Records good except for estimated daily discharges, which are fair.  Flow regulated since 1925 by Deep
   Creek Reservoir, since 1943 by Youghiogheny River Lake 58 mi upstream, and by several smaller reservoirs above
   station.  Several measurements of water temperature were made during the year.  U.S. Army Corps of Engineers
   satellite telemeter at station.

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

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

  1       671      900     3270     1690    e6200    10000     5070     6470     6660     1240     4400     1350
  2       653      886     3220     2270    e5800     8300     8160     5310     5710     1290     5670     1320
  3       631      849     3130     6050    e5400     7620     7780     4920     4050     1990     3660     1280
  4       718      882     2710     5860    e5000     6570     6570     4120     2450     2020     2930     1270
  5       783      966     2800     3860    e4800     6380     7100     4130     2040     1620     2720     1280

  6       844      888     2500     3360    e4700     8750     6060     8710     1900     1420     2770     1340
  7       893      836     2230     2720    e4600    11800     5350     9220     1740     1290     2720    10600
  8       911      872     2100    e2500    e4600    11000     4800    10800     1760     1260     2720     9130
  9       806     1010     1890    e2200    e9000     9050     4010    21900     1650     1600     3140     3830
 10       762     1040     1690    e2200    10200     7460     3690    15900     1680     1340     3230     4890

 11       758      942     1130    e2100     9050     6910     3480    12500     1850     1270     2070     4830
 12       688     1370     1350    e2000     9620     6690     2950    16900     2230     1060     1750     4500
 13       709     2270     1640    e2000     7540     6560     2560    12700     3130     1090     2190     4310
 14       850     1840     1760    e1900     6830     6340     2290    10800     2620     1070     2570     5320
 15      1250     2030     2000    e1800     6410     5180     2200     9360     2430     1160     2480     3220

 16      1130     1960     3660    e3000     4860     6270     4400     8700     2190     1740     3020     2410
 17       904     1760     6140    e5400     3620     5510     5820     9650     1950     1570     2400    12400
 18       748     1750     4270    e8900     3440     4860     5890    10700     1940     1400     1780    15200
 19       679     2080     3700    43500     2550     4560     5920     8680     3360    11700     1580     9650
 20       695     2420     3720    53000     3020    12800     5770     7510     4390    21800     1470     7840

 21       741     2420     3000    13500     7300    11900     5200     6860     3130     9160     1480     4520
 22      1710     2540     2560     8850     9030     8600     4690     5450     2260     8090     1840     3440
 23      1400     2340     2230     7580     8540     7340     4130     6080     1970     7550     1920     3770
 24       932     2280     2030     8850     8260     6620     3650     4650     2290     6900     1800     4270
 25       778     2230     1860    12400     8640     6300     3480     3360     3710     4200     1470     3630

 26       768     2020     1760     9330     6890     7530     2920     2550     3480     3230     1370     3300
 27       736     1910     1620     8530     9150     6780     2900     2230     2300     2420     1420     3040
 28       726     4580     1620    11200    22900     6150     2690     2610     1760     2000     1440     3470
 29       731     6800     1590     9350    16700     5980     3100     3550     1480     1830     1440     5500
 30       758     4370     1490    e8000      ---     5470     4560     5050     1350     2470     1470     4270
 31       813      ---     1580    e7000      ---     5100      ---     7000      ---     3980     1420      ---

TOTAL   26176    59041    76250   260900   214650   230380   137190   248370    79460   110760    72340   145180
MEAN      844     1968     2460     8416     7402     7432     4573     8012     2649     3573     2334     4839
MAX      1710     6800     6140    53000    22900    12800     8160    21900     6660    21800     5670    15200
MIN       631      836     1130     1690     2550     4560     2200     2230     1350     1060     1370     1270
>        -459     +265     +409    +1440     -377     +317      +22     +193     -179     +105     -405      +20

   >  Change in contents, equivalent in cubic feet per second, in Deep Creek Reservoir and Youghiogheny River
      Lake.  Records of contents in Deep Creek Reservoir furnished by Pennsylvania Electric Co.  Records of
      contents in Youghiogheny River Lake furnished by U.S. Army Corps of Engineers.
   e  Estimated.
                                             MONONGAHELA RIVER BASIN

                            03083500  YOUGHIOGHENY RIVER AT SUTERSVILLE, PA--Continued

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1921 - 1996, BY WATER YEAR (WY)  (SINCE REGULATION)

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

MEAN     1503     2085     3662     4021     4596     5964     4931     3684     2256     1595     1452     1372
MAX      7006     5818     9373     8488     9630    13720    10230     8012     7318     4853     5707     6382
(WY)     1955     1922     1973     1974     1939     1936     1940     1996     1941     1985     1956     1971
MIN       107      209      596      611      716     1539     1637     1012      585      614      309      185
(WY)     1924     1923     1954     1925     1934     1990     1921     1982     1925     1942     1922     1922

SUMMARY STATISTICS           FOR 1995 CALENDAR YEAR        FOR 1996 WATER YEAR           WATER YEARS 1921 - 1996

ANNUAL TOTAL                      783916                    1660697
ANNUAL MEAN                         2148   >-3.1               4537   >+116               3086
HIGHEST ANNUAL MEAN                                                                       4537              1996
LOWEST ANNUAL MEAN                                                                        1496              1925
HIGHEST DAILY MEAN                  9320     Mar  1           53000     Jan 20           79000       Mar 18 1936
LOWEST DAILY MEAN                    623     Sep 30             631     Oct  3              57       Sep 30 1922
ANNUAL SEVEN-DAY MINIMUM             643     Sep 27             742     Oct  1              64       Sep 24 1922
INSTANTANEOUS PEAK FLOW                                       84100     Jan 19          108000       Oct 16 1954
INSTANTANEOUS PEAK STAGE                                         28.19  Jan 19             a32.50    Oct 16 1954
INSTANTANEOUS LOW FLOW                                                                     b57    Sep 29,30 1922
ANNUAL RUNOFF (CFSM)                   1.25                       2.65                       1.80
ANNUAL RUNOFF (INCHES)                17.00                      36.02                      24.45
10 PERCENT EXCEEDS                  4520                       9070                       6850
50 PERCENT EXCEEDS                  1640                       3110                       1930
90 PERCENT EXCEEDS                   745                        997                        686

   >  Change in contents, equivalent in cubic feet per second, in Deep Creek Reservoir and Youghiogheny River
      Lake.  Records of contents in Deep Creek Reservoir furnished by Pennsylvania Electric Co.  Records of
      contents in Youghiogheny River Lake furnished by U.S. Army Corps of Engineers.
   a  From floodmark.
   b  Minimum observed.
                                             MONONGAHELA RIVER BASIN

                            03083500  YOUGHIOGHENY RIVER AT SUTERSVILLE, 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-             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)

APR
  29...       1015     3080     314      6.9     12.0      734     10.2      98        27      7.5      16
MAY
  28...       1430     2700     291      7.5     14.0      735      9.7      97        26      7.7      14
JUN
  26...       1000     3610     249      6.9     19.0      743      8.3      79        22      5.9      11
JUL
  24...       0930     7030     155      7.3     19.0      739      8.9      50        14      3.6       7.1
AUG
  13...       1415     2220     254      7.5     21.5      739      9.0      78        22      5.7      14
SEP
  17...       0930     8040     234      7.4     16.5      731      8.8      78        22      5.7      10


                     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
  29...        1.4        27    78       17       <0.10    3.8        183    0.010    0.870    0.070     0.20
MAY
  28...        1.5        33    82       12        0.10    4.8        177   <0.010    0.690    0.110     0.20
JUN
  26...        1.7        26    58       11        0.10    5.1        128    0.010    1.00     0.040     0.60
JUL
  24...        1.3        16    32        7.5      0.10    4.4         89    0.010    0.790    0.050    <0.20
AUG
  13...        1.8        25    65       10       <0.10    4.0        150    0.020    0.760    0.030     0.20
SEP
  17...        2.1        46    52       12       <0.10    4.9        140    0.020    0.830    0.030     0.50


             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)

APR
  29...      <0.20     0.020   <0.010   <0.010     88     180        1.5      0.40    21        92
MAY
  28...       0.30     0.020   <0.010   <0.010     85     150        1.3      0.50     3        29
JUN
  26...       0.20     0.110   <0.010   <0.010     13      36        2.2      2.2     70        90
JUL
  24...      <0.20    <0.010   <0.010   <0.010     69      68        1.8      0.70    15        81
AUG
  13...       0.20    <0.010    0.030    0.010     86      30        2.2      0.70    11        90
SEP
  17...      <0.20     0.110   <0.010    0.010     72      34        2.7      4.1     94        91







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