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USGS 03075070 Monongahela River at Elizabeth, PA

PROVISIONAL DATA SUBJECT TO REVISION

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Station gage imageSTATION.--03075070 MONONGAHELA RIVER AT ELIZABETH, PA
LOCATION.--Lat 40`15'44", long 79`54'05", Allegheny County, Hydrologic Unit 05020005, on right bank 30 ft landward from upstream end of guide wall, 1,050 ft upstream from dam at lock 3 at Elizabeth, 0.4 mi downstream from Lobbs Creek, and at mile 24.0.
DRAINAGE AREA.--5,340 mi2.
PERIOD OF RECORD.--October 1933 to current year. Published as "at Charleroi" (station 03075000) October 1933 to September 1976. Monthly discharge prior to 1940, adjusted for reservoir contents, published in WSP 1305. Records for March 1886 to March 1905 (high-water periods, only), published in WSP 169, are unreliable and should not be used (peak discharge of July 11, 1888, as published in WSP 183, is still considered reliable).
GAGE.--Water-stage recorder and concrete dam control. Datum of gage is 717.90 ft above National Geodetic Vertical Datum of 1929 (U.S. Army Corps of Engineers bench mark). From Oct. 1, 1967 to Sept. 30, 1976, at site 17.5 mi upstream at datum 15.70 ft higher. Prior to Oct. 1, 1967, water-stage recorder at site 17.9 mi upstream at datum 17.43 ft higher. Oct. 1, 1965 to Sept. 30, 1967, auxiliary staff gage, Apr. 14, 1966 to Sept. 30, 1967, auxiliary water-stage recorder and Oct. 1, 1967 to Nov. 4, 1990, water-stage recorder at present site at datum 7.60 ft higher.
GAGE HEIGHTS OF IMPORTANCE.-
Supplied by NWS: Action stage-16.5 ft; Flood stage-20 ft; Moderate flood stage-23 ft; Major flood stage-26 ft.
REMARKS.--Flow regulated by locks above station, since 1938 by Tygart Lake, and since 1926 by Lake Lynn, combined capacity, 357,000 acre-ft. U.S. Army Corps of Engineers satellite telemeter at station.
COOPERATION.--Station established and maintained by the U.S. Geological Survey. Funding for the operation of this station is provided by the U.S. Army Corps of Engineers, Pittsburgh District, the Pennsylvania Department of Environmental Protection, and the U.S. Geological Survey through the Cooperative Water Program.
This station managed by the PAWSC Pittsburgh Field Office.

Available Parameters Available Period
All 6 Available Parameters for this site
  
00065 Gage height 2007-10-01  2014-10-24
00060 Discharge 2007-10-01  2014-10-24
00400 pH 2007-10-01  2014-10-24
00095 Specific cond at 25C 2007-10-01  2014-10-24
00300 Dissolved oxygen 2008-06-01  2014-10-24
00010 Temperature, water 2008-10-02  2014-10-24

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Summary of all available data for this site
Instantaneous-data availability statement


Gage height, feet

Most recent instantaneous value: 12.58   10-24-2014  05:15 EDT
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Discharge, cubic feet per second

Most recent instantaneous value: 13,900   10-24-2014  05:15 EDT
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Daily discharge, cubic feet per second -- statistics for Oct 24 based on 80 years of record more
Min
(1935)
25th
percen-
tile
Median Mean 75th
percen-
tile
Most Recent
Instantaneous
Value Oct 24
Max
(1997)
252 1160 2220 3770 4620 13900 23100


pH, water, unfiltered, field, standard units

Most recent instantaneous value: 7.4   10-24-2014  05:15 EDT
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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Most recent instantaneous value: 225   10-24-2014  05:15 EDT
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Dissolved oxygen, water, unfiltered, milligrams per liter

Most recent instantaneous value: 9.9   10-24-2014  05:15 EDT
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Temperature, water, degrees Celsius

Most recent instantaneous value: 14.3   10-24-2014  05:15 EDT
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