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Water Quality Samples for Oregon

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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 2019-11-05 745 94788
Information 1974-10-25 2019-11-05 677 8256
Physical 1974-10-25 2019-11-05 671 9716
Inorganics, Major, Metals 1974-10-25 2019-09-10 397 2357
Inorganics, Major, Non-metals 1974-10-25 2019-11-05 670 6704
Nutrient 1974-10-25 2019-10-08 568 8516
Microbiological 1974-10-25 1995-06-21 169 392
Biological 1974-10-25 2019-11-05 280 487
Inorganics, Minor, Metals 1974-10-25 2019-09-10 322 5114
Inorganics, Minor, Non-metals 1974-10-25 2019-09-10 298 1106
Organics, pesticide 1983-07-01 2019-08-20 404 47937
Organics, PCBs 1992-09-09 1997-08-28 11 11
Organics, other 1974-10-25 2019-11-05 416 1433
Radiochemical 1974-12-31 2005-04-14 117 539
Sediment 1974-10-25 2019-06-11 555 1387
Population/Community 1974-10-25 1981-09-23 57 833