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Important Legacy real-time page
Available data
Select data types to graph from categories based on the way the data were collected.
Learn about the data collection categories Continuous data
4 data types available - data from 1986-10-01 to 2026-08-07
Daily data
7 data types available - data from 1931-06-01 to 2026-08-05
Field measurements
2 data types available - data from 1933-03-31 to 2026-08-04
Discrete sample data
137 Observed properties (data types) available - with data from 1964-10-10 to 2008-06-30
208 Sampling activities
Peak measurements
2 data types available - with data from 1931-11-26 to 2025-04-05
Statistical tables for select daily data types
7 data types available - data from 1931-06-01 to 2026-08-05
Monitoring locations with continuous data in last 120 days
No locations found

