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USGS 01434025 BISCUIT BK ABOVE PIGEON BK AT FROST VALLEY NY

PROVISIONAL DATA SUBJECT TO REVISION

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> Site Information
LOCATION.--Lat 41°59'45.9", long 74°30'00.8" referenced to North American Datum of 1983, Ulster County, NY, Hydrologic Unit 02040104, on right bank 0.3 mi upstream from Pigeon Brook, 0.7 mi upstream from mouth, and 0.8 mi northeast of Frost Valley.
DRAINAGE AREA.--3.72 mi².
PERIOD OF RECORD.--Occasional discharge measurements, water year 1983. June 1983 to current year.
REVISIONS HISTORY.--WDR NY-91-1: Drainage area. WDR NY-94-1: 1984(P), 1985(M), 1987(P), 1989(P), 1993(P).
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 2,082.53 ft above NAVD of 1988. Prior to Sept. 11, 1987, at datum 6.00 ft higher. Sept. 11, 1987 to Sept. 5, 2011, at datum 5.00 ft higher.
REMARKS.--Water Years 2014-19: Records fair except those for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, about 1,500 ft³/s, Aug. 28, 2011, gage height, 11.37 ft, present datum, from crest-stage gage, from rating curve extended above 390 ft³/s on basis of runoff comparisons with nearby stations; minimum discharge, 0.24 ft³/s, Sept. 2, 3, 1991, gage height, 5.75 ft, present datum; minimum gage height, 2.20 ft, Aug. 9, 10, Sept. 2, 3, 2012.
PERIOD OF DAILY RECORD1.--WATER TEMPERATURE: September 2018 to current year. SPECIFIC CONDUCTANCE: January 2020 to current year.
INSTRUMENTATION1.--A continuous water-quality monitor with water temperature and specific conductance provides 15-minute-interval readings.
REMARKS1.--Interruption of record was due to malfunction of recording instrument.
EXTREMES FOR PERIOD OF DAILY RECORD1.--SPECIFIC CONDUCTANCE: Maximum, 17 uS/cm at 25 °C, several day in August and September 2020; minimum, 8 uS/cm at 25 °C, Feb. 29, Mar. 1, 2020.
1 Water-Quality Records
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> Rating Information
This station managed by the NY Water Science Center Milford.

Available Parameters Available Period
  
2015-10-01  2021-09-17
2017-10-23  2021-09-17
1983-06-08  2021-09-17
2007-10-01  2021-09-17
2020-01-24  2021-09-17







 (7)
 

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


Temperature, water, degrees Celsius

Most recent instantaneous value: 14.0 09-17-2021   20:30 EST
Graph of  Temperature, water, degrees Celsius

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Temperature, air, degrees Celsius

Most recent instantaneous value: 17.1 09-17-2021   20:30 EST
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Discharge, cubic feet per second

Most recent instantaneous value: 20.1 09-17-2021   20:30 EST
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Daily discharge, cubic feet per second -- statistics for Sep 17 based on 37 water years of record more
Min
(1991)
25th
percen-
tile
Median 75th
percen-
tile
Mean Most Recent
Instantaneous
Value Sep 17
Max
(1999)
0.48 1.2 2.7 6 6.3 20.1 77.0


Gage height, feet

Most recent instantaneous value: 5.57 09-17-2021   20:30 EST
Graph of  Gage height, feet

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Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

Most recent instantaneous value: 12 09-17-2021   20:30 EST
Graph of  Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

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