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* IMPORTANT: Next Generation Station Page

USGS 01646000 DIFFICULT RUN NEAR GREAT FALLS, VA

PROVISIONAL DATA SUBJECT TO REVISION

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Current shift adjusted stage-discharge rating table. These tab delimited tables are updated daily and can change frequently. If you use these ratings, it is important that you update often so that you have the most current version.
What is a shift adjusted stage-discharge rating?

This station managed by the Richmond Field Office.

Available Parameters Available Period
  
2007-10-02  2020-01-24
2003-10-01  2020-01-24
2019-09-26  2020-01-24
2007-10-02  2020-01-24
2012-10-11  2020-01-24
2012-10-11  2020-01-24
2017-08-10  2020-01-24
2012-10-19  2020-01-24







 (7)
 

  -- or --

 


 

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


Temperature, water, degrees Celsius

Most recent instantaneous value: 3.0 01-24-2020   11:15 EST
Graph of  Temperature, water, degrees Celsius

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Discharge, cubic feet per second

Most recent instantaneous value: 37.2 01-24-2020   11:15 EST
Graph of  Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Jan 24 based on 84 water years of record more
Min
(1982)
25th
percen-
tile
Most Recent
Instantaneous
Value Jan 24
Median 75th
percen-
tile
Mean Max
(2019)
16.0 32 37.2 54 76 90 811


Gage height, feet

Most recent instantaneous value: 3.18 01-24-2020   11:15 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: 413 01-24-2020   11:15 EST
Graph of  Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius

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Dissolved oxygen, water, unfiltered, milligrams per liter

Most recent instantaneous value: 14.0 01-24-2020   11:15 EST
Graph of  Dissolved oxygen, water, unfiltered, milligrams per liter

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pH, water, unfiltered, field, standard units

Most recent instantaneous value: 7.1 01-24-2020   11:15 EST
Graph of  pH, water, unfiltered, field, standard units

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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), [YSI EXO]

Most recent instantaneous value: 2.7 01-24-2020   11:15 EST
Graph of  Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU), [YSI EXO]

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Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen

Most recent instantaneous value: 2.54 01-24-2020   11:15 EST
Graph of  Nitrate plus nitrite, water, in situ, milligrams per liter as nitrogen

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