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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
3 data types available - data from 1986-10-01 to 2026-08-10
Daily data
5 data types available - data from 1931-06-01 to 2026-08-08
Field measurements
2 data types available - data from 1933-04-03 to 2026-08-04
Discrete sample data
128 Observed properties (data types) available - with data from 1966-11-16 to 2008-06-30
127 Sampling activities
Peak measurements
2 data types available - with data from 1932-01-13 to 2025-08-19
Statistical tables for select daily data types
5 data types available - data from 1931-06-01 to 2026-08-08
Monitoring locations with continuous data in last 120 days
No locations found


