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Water Quality Samples for Oregon


USGS 14211720 WILLAMETTE RIVER AT PORTLAND, OR

Multnomah County, Oregon
Hydrologic Unit Code 17090012
Latitude  45°31'03", Longitude 122°40'09" NAD83
Drainage area 11,200  square miles
Gage datum 1.55 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 Group Summary of Available Data
Parameter Group First
Date		 Last
Date		 Number of
Samples		 Number of
Values
All -- include all parameter groups 1974-10-25 2022-06-07 902 104343
Information 1974-10-25 2022-06-07 834 10119
Physical 1974-10-25 2022-06-07 717 11500
Inorganics, Major, Metals 1974-10-25 2022-02-01 438 2603
Inorganics, Major, Non-metals 1974-10-25 2022-06-07 715 7310
Nutrient 1974-10-25 2022-04-06 611 9279
Microbiological 1974-10-25 2019-10-08 187 462
Biological 1974-10-25 2021-11-17 211 358
Inorganics, Minor, Metals 1974-10-25 2022-02-01 363 5442
Inorganics, Minor, Non-metals 1974-10-25 2022-02-01 339 1229
Organics, pesticide 1983-07-01 2021-11-09 442 51892
Organics, PCBs 1992-09-09 1997-08-28 11 11
Organics, other 1974-10-25 2022-04-06 400 1245
Radiochemical 1974-12-31 2005-04-14 117 539
Sediment 1974-10-25 2022-03-01 600 1521
Population/Community 1974-10-25 1981-09-23 57 833