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* IMPORTANT: Next Generation Station Page

USGS 01438500 Delaware River at Montague NJ

PROVISIONAL DATA SUBJECT TO REVISION

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During winter months, cold and ice may result in inaccurate real-time gage height and streamflow data. Adjustments or deletions of this data can only be done after detailed analysis.

 


SURFACE-WATER RECORDS

LOCATION.--Lat 41°18'33", long 74°47'43" referenced to North American Datum of 1983, Dingman Township, Pike County, PA, Hydrologic Unit 02040104, on right bank 1,500 ft upstream from toll bridge (on U.S. Route 206) between Montague, NJ and Milford, PA, 0.8 mi downstream from Sawkill Creek, and at river mile 246.3.
DRAINAGE AREA.--3,480 mi².
PERIOD OF RECORD.--March 1936 to September 1939 (gage heights only, published as "at Milford, PA"). October 1939 to current year.
REVISIONS HISTORY.--WDR NJ-81-2: 1980.
GAGE.--Water-stage recorder with telemetry. Datum of gage is 369.93 ft above NGVD of 1929. Prior to Feb 9, 1940, non-recording gage on upstream side of left span of subsequently dismantled bridge at present site at datum 70 ft lower.
REMARKS.--Records good, except for estimated discharges, which are fair. Diurnal fluctuation at medium and low flow caused by hydroelectric plants on tributary streams. Flow regulated by Lake Wallenpaupack, Cliff Lake, and by Pepacton, Cannonsville, Swinging Bridge, Toronto, and Neversink Reservoirs. Discharges above 105,000 ft³/s from rating curve extension on basis of flood-routing study.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 250,000 ft³/s, from rating curve extended above 105,000 ft³/s on basis of flood-routing study, Aug 19, 1955, gage height, 35.15 ft; minimum discharge, 382 ft³/s, Aug 24, 1954.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood of Oct 10, 1903 reached a stage of 31.1 ft (from high-water mark), discharge, 217,000 ft³/s.

WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water years 1956-73, 1976-78, 1991 to August 2009.

Peak Flood Chart

Gage Photo

National Weather Service flood stage for this gage is 25 ft.

Weather station data are available from this location at this link.

The weather data for this station are temporary and will only be displayed for 120 days. Although the instrumentation is calibrated at least once/year, the temporary classification means that documented routine inspections and other quality assurance measures are not performed that would make the data acceptable for archival, retrieval, or future use in general scientific or interpretive studies.

This station managed by the New Jersey Water Science Center.

Available Parameters Available Period
All 8 Available Parameters for this site
  
00010 Temperature, water 2019-10-02  2019-10-13
00060 Discharge 1981-10-01  2019-10-13
00065 Gage height 2007-10-01  2019-10-13
00095 Specific cond at 25C 2019-10-02  2019-10-13
00300 Dissolved oxygen 2019-10-02  2019-10-13
00301 Diss oxygen,%saturtn 2019-10-02  2019-10-13
00400 pH 2019-10-02  2019-10-13
63680 Turbidity, Form Neph 2019-10-02  2019-10-13

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


Temperature, water, degrees Celsius

Most recent instantaneous value: 15.5 10-13-2019   16:30 EDT
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Discharge, cubic feet per second

Most recent instantaneous value: 1350 10-13-2019   16:45 EDT
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Daily discharge, cubic feet per second -- statistics for Oct 13 based on 78 water years of record more
Min
(1942)
Most Recent
Instantaneous
Value Oct 13
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(2006)
665 1350 1680 1980 3220 3790 25300


Gage height, feet

Most recent instantaneous value: 4.83 10-13-2019   16:45 EDT
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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Most recent instantaneous value: 116 10-13-2019   16:30 EDT
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Dissolved oxygen, water, unfiltered, milligrams per liter

Most recent instantaneous value: 10.7 10-13-2019   16:30 EDT
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Dissolved oxygen, water, unfiltered, percent of saturation

Most recent instantaneous value: 108 10-13-2019   16:30 EDT
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pH, water, unfiltered, field, standard units

Most recent instantaneous value: 8.0 10-13-2019   16:30 EDT
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Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)

Most recent instantaneous value: 0.8 10-13-2019   16:30 EDT
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