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Water Quality Samples for the Nation

! Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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 06307740 Otter Creek at Ashland MT

Rosebud County, Montana
Hydrologic Unit Code 10090102
Latitude  45°35'18.20", Longitude 106°15'18.20" NAD83
Drainage area 710  square miles
Gage datum 2,916.5 feet above NGVD29
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
Code		 Count Begin
Date		 End
Date		 Parameter Code Complete Name
00600 148 1974-10-02 2014-09-23 Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, unfiltered, milligrams per liter
00605 187 1974-10-02 2016-09-21 Organic nitrogen, water, unfiltered, milligrams per liter as nitrogen
00607 4 2013-07-24 2014-09-23 Organic nitrogen, water, filtered, milligrams per liter as nitrogen
00608 58 1983-10-20 2016-09-21 Ammonia (NH3 + NH4+), water, filtered, milligrams per liter as nitrogen
00610 129 1974-10-02 1992-12-08 Ammonia (NH3 + NH4+), water, unfiltered, milligrams per liter as nitrogen
00613 63 1993-04-13 2016-09-21 Nitrite, water, filtered, milligrams per liter as nitrogen
00625 144 1974-10-02 2003-09-02 Ammonia plus organic nitrogen, water, unfiltered, milligrams per liter as nitrogen
00630 131 1974-10-02 1992-12-08 Nitrate plus nitrite, water, unfiltered, milligrams per liter as nitrogen
00631 64 1983-10-20 2016-09-21 Nitrate plus nitrite, water, filtered, milligrams per liter as nitrogen
00650 13 1979-06-07 1992-12-08 Phosphate, water, unfiltered, milligrams per liter as PO4
00665 194 1974-10-02 2016-09-21 Phosphorus, water, unfiltered, milligrams per liter as phosphorus
00671 64 1983-10-20 2016-09-21 Orthophosphate, water, filtered, milligrams per liter as phosphorus
62855 49 2003-10-07 2016-09-21 Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, unfiltered, analytically determined, milligrams per liter
71845 129 1974-10-02 1992-12-08 Ammonia (NH3 + NH4+), water, unfiltered, milligrams per liter as NH4
71846 58 1983-10-20 2016-09-21 Ammonia (NH3 + NH4+), water, filtered, milligrams per liter as NH4
71886 51 1979-05-09 1985-09-10 Phosphorus, water, unfiltered, milligrams per liter as PO4
71887 130 1974-10-02 1992-12-08 Total nitrogen [nitrate + nitrite + ammonia + organic-N], water, unfiltered, milligrams per liter as nitrate