Laurel Hill Creek at Ursina, PA

1997 Water-Year
Fixed-Site Reach Assessment
Water-Quality Records
[drop]

--------
                                             YOUGHIOGHENY RIVER BASIN

                                    03080000  LAUREL HILL CREEK AT URSINA, PA
                                   (National Water-Quality Assessment station)

LOCATION.--Lat 39`49'13", long 79`19'18", Somerset County, Hydrologic Unit 05020006, on right bank 500 ft
   downstream from bridge on State Highway 281 at Ursina, and 2.7 mi upstream from mouth.

DRAINAGE AREA.--121 mi2.

                                             WATER-DISCHARGE RECORDS

PERIOD OF RECORD.--August to September 1913 (gage heights and discharge measurements only),  October 1918 to
   current year.  Monthly discharge only for some periods, published in WSP 1305.  October 1913 to September
   1918 (gage heights and discharge measurements only) in reports of Water Supply Commission of Pennsylvania.

REVISED RECORDS.--WSP 743:   Drainage area.  WSP 893:   1919-21, 1932-34.  WSP 1305:   1922-31.
   WSP 1435:   1919-20.  WSP 1625:   1932 (M).

GAGE.--Water-stage recorder and masonry control.  Datum of gage is 1,335.26 ft above sea level.  Prior to July 18,
   1939, nonrecording gage at bridge 0.5 mi downstream at datum 6.20 ft lower.

REMARKS.--Records good except for estimated daily discharges, which are fair.  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 3,000 ft3/s and maximum (*):

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

May 25       2300      *3,720         *5.06                         No other peak greater than base discharge.

                 DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997
                                               DAILY MEAN VALUES

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

  1       300      193     1360      307      249      319      423      219      459       29      e18       15
  2       243      179     1890      273      220     1470      376      195      757       47      e16       13
  3       212      160     1060      258      218     1300      332      185      682       38      e18       13
  4       173      141      678      247      280     1070      301      277      640       28      e20       20
  5       145      130      491      236      893     1110      266      220      461       25      e23       17

  6       127      129      413      232      652     1390      238      208      358       23      e25       16
  7       113      122      336      191      425      976      209      257      292       22      e22       15
  8       103      975      300     e165      358      675      179      226      239       21      e20       20
  9        99     1420      267     e145      289      500      167      383      200       20      e18       20
 10       141      919      216     e120      240      502      151      558      169       28      e16       19

 11       136      610      323     e105      212      431      144      695      146       26      e14       22
 12        98      447     1150      e96      191      340      140      516      130       21      e17       21
 13        85      361     1340      e88     e170      284      208      419      290       18       23       19
 14        80      340      987      e82     e150      319      186      337      303       17       38       17
 15        73      270      637      e77     e140      415      153      297      179       18       16       16

 16        69      224      461      e74     e130      302      142      246      136       15       11       15
 17        66      204      370      e71     e120      266      182      214      123       14       40       14
 18        75      205      304      e68     e140      257      237      198      106       16      216       14
 19       629      222      252      e66      429      343      226      314      114       17       93       15
 20      1750      206      216      e64     1260      307      203      871      102       19       80       17

 21      1250      195      193      e62      945      265      190      564       78       16      229       27
 22      1090      186      186      e61     1070      244      180      406       67      e15       89       21
 23       771      156      173      e61      740      216      167      322       62      e20       47       18
 24       541      146      233      e60      497      197      155      269       51      e26       30       16
 25       397      141      332      e80      366      187      142     1410       43      e34       25       15

 26       310      250      292     e140      305     1030      134     2780       50      e33       21       14
 27       259      230      215     e250      280      790      118     1270       53      e29       19       14
 28       272      229      239     e504      256      499      279      705       40      e27       33       15
 29       305      223      405     e916      ---      446      294      474       32      e24       25      383
 30       245      262      511     e857      ---      429      231      367       29      e22       19      176
 31       215      ---      371      397      ---      472      ---      346      ---      e19       16      ---

TOTAL   10372     9475    16201     6353    11225    17351     6353    15748     6391      727     1297     1037
MEAN      335      316      523      205      401      560      212      508      213     23.5     41.8     34.6
MAX      1750     1420     1890      916     1260     1470      423     2780      757       47      229      383
MIN        66      122      173       60      120      187      118      185       29       14       11       13
CFSM     2.77     2.61     4.32     1.69     3.31     4.63     1.75     4.20     1.76      .19      .35      .29
IN.      3.19     2.91     4.98     1.95     3.45     5.33     1.95     4.84     1.96      .22      .40      .32

   e  Estimated.
                                             YOUGHIOGHENY RIVER BASIN

                               03080000  LAUREL HILL CREEK AT URSINA, PA--Continued

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1919 - 1997, BY WATER YEAR (WY)

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

MEAN      119      220      335      352      401      558      439      319      183      106     99.4     83.9
MAX       564     1011      815     1141     1000     1331      879      689      700      388      416      608
(WY)     1955     1986     1973     1937     1956     1936     1970     1924     1941     1985     1935     1971
MIN      6.15     8.91     42.2     57.0     89.3      155      114     52.0     29.4     9.20     8.90     5.73
(WY)     1931     1931     1931     1925     1934     1990     1921     1926     1965     1966     1983     1959

SUMMARY STATISTICS           FOR 1996 CALENDAR YEAR        FOR 1997 WATER YEAR           WATER YEARS 1919 - 1997

ANNUAL TOTAL                      163597                     102530
ANNUAL MEAN                          447                        281                        267
HIGHEST ANNUAL MEAN                                                                        395              1996
LOWEST ANNUAL MEAN                                                                         164              1931
HIGHEST DAILY MEAN                 e4600     Jan 19            2780     May 26            6980       Mar 17 1936
LOWEST DAILY MEAN                     23     Sep  3              11     Aug 16               2.4     Sep 26 1932
ANNUAL SEVEN-DAY MINIMUM              27     Aug 30              15     Sep 14               3.4     Sep  5 1957
INSTANTANEOUS PEAK FLOW                                        3720     May 25          a10900       Oct 15 1954
INSTANTANEOUS PEAK STAGE                                          5.06  May 25              10.63    Oct 15 1954
INSTANTANEOUS LOW FLOW                                           10     Aug 16               2.2     Sep 26 1932
ANNUAL RUNOFF (CFSM)                   3.69                       2.32                       2.21
ANNUAL RUNOFF (INCHES)                50.30                      31.52                      30.02
10 PERCENT EXCEEDS                  1040                        680                        637
50 PERCENT EXCEEDS                   260                        195                        150
90 PERCENT EXCEEDS                    75                         18                         21

   a  From rating curve extended above 6,100 ft3/s on basis of slope-area measurement of peak flow.
   e  Estimated.

                                             MONONGAHELA RIVER BASIN

                               03080000  LAUREL HILL CREEK AT URSINA, PA--Continued
                                   (National Water-Quality Assessment station)

                                              WATER-QUALITY RECORDS

PERIOD OF RECORD.--October 1975 to August 1981, April 1996 to current year.

REMARKS.--All water-quality samples were collected and analyzed by the U.S. Geological Survey except those  
     furnished by the Pennsylvania Department of Environmental Resources as noted.  This site was used as a   
     comparable reference site for mining.  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.


                         WATER-QUALITY DATA, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997

                    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)  CACO3)    AS CA)   AS MG)  AS NA)
                  (00061)  (00095)  (00400)  (00010)  (00025)  (00300)  (00900)  (70508)  (00915)  (00925) (00930)

MAY
  21...    1015    560       85      7.0      11.5      724     11.2       22     4.4        6.4     1.4      5.6
SEP
  17...    0815     18      144      7.5      18.0      726      8.7       38     2.0       12       2.3      9.9



                      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)

MAY
  21...        0.69     11      9.2      9.5     <0.10     3.6       59    <0.010    0.589   <0.015    <0.20
SEP
  17...        1.2      22     12       19       <0.10     0.90      75    <0.010    0.217   <0.015    <0.20



             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)

MAY
  21...       <0.20   <0.010   <0.010   <0.010    26        29      14        1.7      0.70     8       91
SEP
  17...       <0.20   <0.010   <0.010   <0.010     6.7       9.4    13        --       --       1       50

                                             MONONGAHELA RIVER BASIN

                               03080000  LAUREL HILL CREEK AT URSINA, PA--Continued

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


                          WATER-QUALITY DATA, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997

                                 DIS-
                               CHARGE,                     BERYL-            CHRO-
                                INST.   ARSENIC  BARIUM,   LIUM,   CADMIUM   MIUM,   COBALT,  COPPER,
                                CUBIC     DIS-    DIS-     DIS-      DIS-    DIS-     DIS-     DIS-
                                 FEET    SOLVED  SOLVED    SOLVED   SOLVED   SOLVED  SOLVED    SOLVED
              DATE      TIME     PER     (µG/L    (µG/L    (µG/L    (µG/L    (µG/L    (µG/L    (µG/L
                                SECOND   AS AS)   AS BA)   AS BE)   AS CD)   AS CR)   AS CO)   AS CU)
                               (00061)  (01000)  (01005)  (01010)  (01025)  (01030)  (01035)  (01040)

          MAY
            21...       1015    560          <1    39       <1.0     <1.0     <1.0     <1.0     <1.0
          SEP
            17...       0815     18          <1    51       <1.0     <1.0     <1.0     <1.0      1.1



                                MOLYB-                              ANTI-    SELE-   URANIUM
                       LEAD,    DENUM,  NICKEL,  SILVER,   ZINC,    MONY,    NIUM,   NATURAL
                        DIS-     DIS-    DIS-      DIS-     DIS-     DIS-     DIS-     DIS-
                       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
                       AS PB)   AS MO)   AS NI)   AS AG)   AS ZN)   AS SB)   AS SE)   AS U)
                      (01049)  (01060)  (01065)  (01075)  (01090)  (01095)  (01145)  (22703)

          MAY
            21...       <1.0     <1.0      1.9     <1.0     10       <1.0        <1    <1.0
          SEP
            17...       <1.0     <1.0      1.4     <1.0      1.4     <1.0        <1    <1.0

                                             MONONGAHELA RIVER BASIN

                               03080000 LAUREL HILL CREEK AT URSINA, PA--Continued

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


                          WATER-QUALITY DATA, WATER YEAR OCTOBER 1996 TO SEPTEMBER 1997

                         DIS-    SEDI-
                       CHARGE,   MENT
                        INST.    SUSP.,            AN-                       BERYL-                     CARBON,
                        CUBIC    FLOW-   ALUM-    TIMONY   ARSENIC  BARIUM    LIUM    CADMIUM  CARBON   ORGANIC
                         FEET   THROUGH  INUM      SED.     SED.     SED.     SED.     SED.     SED.      SUS_
      DATE      TIME     PER    CENTRIF  SED,SUS   SUSP.    SUSP.    SUSP.    SUSP.    SUSP.   SUSP.     PENDED
                        SECOND  (MG/L)   PERCENT  (mG/G)   (mG/G)   (mG/G)   (mG/G)   (mG/G)   PERCENT  PERCENT
                       (00061)  (50279)  (30221)  (29816)  (29818)  (29820)  (29822)  (29826)  (30244)  (00683)

  MAY
    21...       1015     560      12       7.9       1       10       580       5       4.1       7.7      7.0
  SEP
    17...       0815      18       0       4.9       2        9       590       5       9.6        --       --



                    CHRO-   COBALT             IRON             LITHIUM   MAN-             MOLYB-
                    MIUM     SEDI-   COPPER    SEDI-    LEAD     SEDI-   GANESE   MERCURY   DENUM   NICKEL
                    SED.     MENT     SED.     MENT     SED.     MENT     SED.     SED.     SED.     SED.
           DATE     SUSP.    SUSP.    SUSP.    SUSP.    SUSP.    SUSP.    SUSP.    SUSP.    SUSP.    SUSP.
                   (mG/G)   (mG/G)   (mG/G)   PERCENT  (mG/G)   (mG/G)   (mG/G)   (mG/G)   (mG/G)   (mG/G)
                   (29829)  (35031)  (29832)  (30269)  (29836)  (35050)  (29839)  (29841)  (29843)  (29845)

       MAY
         21...       83       50       26       4.2      43       63       3700    .08       <10       99
       SEP
         17...       80       54       65       4.1      53       44      11000      --      <25      200



                    PHOS-                      STRON-                     TITA-
                   PHORUS    SELE-             TIUM     SULFUR            NIUM    URANIUM   VANA-
                    SEDI-    NIUM    SILVER    SEDI-    SEDI-    THAL-    SEDI-    SEDI-    DIUM     ZINC
                    MENT     SED.     SED.     MENT     MENT     LIUM     MENT     MENT     SED.     SED.
           DATE     SUSP.    SUSP.    SUSP.    SUSP.    SUSP.   SUS SED   SUSP.    SUSP.    SUSP.    SUSP.
                   PERCENT  (mG/G)   (mG/G)   (mG/G)   PERCENT   (mG/G)  PERCENT  (mG/G)   (mG/G)   (mG/G)
                   (30292)  (29847)  (29850)  (35040)  (30308)  (49955)  (30317)  (35046)  (29853)  (29855)

       MAY
         21...      1100       2       <3       120       .30    <100      .39     <100      96       580
       SEP
         17...      1700       2       <3        93       --     <250      .28     <250      65       600







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