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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 2020-03-18 841 98120
Information 1974-10-25 2020-03-18 773 8872
Physical 1974-10-25 2020-03-18 678 9913
Inorganics, Major, Metals 1974-10-25 2020-03-18 406 2411
Inorganics, Major, Non-metals 1974-10-25 2020-03-18 677 6804
Nutrient 1974-10-25 2020-03-18 576 8668
Microbiological 1974-10-25 2019-10-08 187 462
Biological 1974-10-25 2020-03-18 376 641
Inorganics, Minor, Metals 1974-10-25 2020-03-18 331 5186
Inorganics, Minor, Non-metals 1974-10-25 2020-03-18 307 1133
Organics, pesticide 1983-07-01 2020-01-22 414 49740
Organics, PCBs 1992-09-09 1997-08-28 11 11
Organics, other 1974-10-25 2020-03-18 423 1484
Radiochemical 1974-12-31 2005-04-14 117 539
Sediment 1974-10-25 2020-02-04 567 1423
Population/Community 1974-10-25 1981-09-23 57 833