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Water Quality Samples for Montana

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Questions or concerns about USGS data and data products in Montana and Wyoming can be directed to the Wyoming-Montana Water Science Center Data Management Section.


! Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024
with a full decommission expected 6 months later. Learn more about the upcoming change and where to find the new samples data in our blog.

USGS 12334550 Clark Fork at Turah Bridge nr Bonner MT

Missoula County, Montana
Hydrologic Unit Code 17010202
Latitude  46°49'33.28", Longitude 113°48'50.51" NAD83
Drainage area 3,657  square miles
Gage datum 3,320 feet above NAVD88
Output formats
Parameter Group Period of Record table
Inventory of available water-quality data for printing
Inventory of water-quality data with retrieval
Tab-separated data, one result per row
Tab-separated data one sample per row with remark codes combined with values
Tab-separated data one sample per row with tab-delimiter for remark codes
Reselect output format
Parameter Group Summary of Available Data
Parameter Group First
Date
Last
Date
Number of
Samples
Number of
Values
All -- include all parameter groups 1985-03-28 2023-11-03 2781 37949
Information 1985-03-28 2023-11-03 2711 11411
Physical 1985-03-28 2023-11-03 2777 13224
Inorganics, Major, Metals 1986-04-16 2023-11-03 435 1170
Inorganics, Major, Non-metals 1985-03-28 2023-11-03 448 1096
Nutrient 1997-05-19 2009-06-23 95 641
Biological 1998-08-12 1999-08-10 4 11
Inorganics, Minor, Metals 1985-03-28 2023-11-03 446 5694
Inorganics, Minor, Non-metals 1985-03-28 2023-11-03 443 967
Organics, pesticide 1998-08-11 1998-08-12 2 68
Organics, PCBs 1998-08-11 1998-08-12 2 2
Organics, other 1997-05-19 2000-01-26 19 88
Radiochemical 1997-05-19 2000-08-29 22 24
Sediment 1985-03-28 2023-11-03 2549 3553