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USGS 01402000 Millstone River at Blackwells Mills NJ

  Stream Site

DESCRIPTION:
Latitude 40°28'30",   Longitude 74°34'33"   NAD83
Somerset County, New Jersey, Hydrologic Unit 02030105
Drainage area: 258 square miles
Datum of gage: 26.97 feet above   NGVD29.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    1981-10-01  2024-04-17  
 Daily Data
    Temperature, water, degrees Celsius  2001-08-01  2023-12-10  2088 
    Discharge, cubic feet per second  1921-08-04  2024-04-16  37506 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2001-08-01  2023-12-10  1026 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2001-08-01  2023-12-10  1014 
    Dissolved oxygen, water, unfiltered, percent of saturation  2001-08-01  2001-08-02  6 
    Dissolved oxygen, water, unfiltered, percent of saturation  2022-08-02  2023-12-11  1059 
    pH, water, unfiltered, field, standard units  2001-08-01  2023-12-10  1029 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2022-08-02  2023-12-11  1044 
 Daily Statistics 
    Temperature, water, degrees Celsius  2001-08-01  2022-12-06 477 
    Discharge, cubic feet per second  1921-08-04  2021-08-30 36552 
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2001-08-01  2022-12-06 125 
    Dissolved oxygen, water, unfiltered, milligrams per liter  2001-08-01  2022-12-06 119 
    Dissolved oxygen, water, unfiltered, percent of saturation  2001-08-01  2001-08-02 
    Dissolved oxygen, water, unfiltered, percent of saturation  2022-08-02  2022-12-06 124 
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2022-11-30  2022-12-06 
 Monthly Statistics 
    Temperature, water, degrees Celsius  2001-08  2022-12  
    Discharge, cubic feet per second  1921-08  2021-08  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2001-08  2022-12  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2001-08  2022-12  
    Dissolved oxygen, water, unfiltered, percent of saturation  2001-08  2001-08  
    Dissolved oxygen, water, unfiltered, percent of saturation  2022-08  2022-12  
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2022-11  2022-12  
 Annual Statistics 
    Temperature, water, degrees Celsius  2001  2023  
    Discharge, cubic feet per second  1921  2021  
    Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius  2001  2023  
    Dissolved oxygen, water, unfiltered, milligrams per liter  2001  2023  
    Dissolved oxygen, water, unfiltered, percent of saturation  2001  2001  
    Dissolved oxygen, water, unfiltered, percent of saturation  2022  2023  
    Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)  2023  2023  
 Peak streamflow 1921-08-08  2020-04-14  100 
 Field measurements 1966-10-20  2024-03-24  386 
 Field/Lab water-quality samples 1923-08-12  2024-02-21  416 
 Water-Year Summary 2006  2022  17 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS New Jersey Water Science Center
Email questions about this site to New Jersey Water Science Center Water-Data Inquiries