Continuous Monitoring Station Comparison
Charts and Data Download

Choose two stations to compare, parameters, date range, and how you'd like your data presented. Click "Submit" to view your results.

Use the links below to help select your stations:

Just want to view data/charts for a single station?
Use our Continuous Monitoring Chart and Data Download Page (opens in new window) instead.

1. Station Selections:

River - Station name [3 letter station ID] (sampling dates)

SELECT FIRST STATION:

SELECT SECOND STATION:

2. Choose Parameter(s): (Specify at least one)

Water Temperature (°C)

Salinity (ppt)

Dissolved Oxygen (mg/L)

Turbidity (NTU or FNU)

Water Temperature (°F)

Dissolved Oxygen (% Sat)

Chlorophyll (µg/L)

Blue Green Algae [BGA] (RFU) - Only available at select stations

3. Select Date Range:

Start Date:

End Date:

(Please enter desired date range in mm/dd/yyyy format)

4. Data output as viewable Chart or Download Data?

(Select one option. Mouseover each option for more information)

View Selection as Comparison Chart* (Opens in new tab/window)

Download Raw Comparison Data* (Check your 'Downloads' folder)

Note: * Data from 2017 and 2026 are provisional and have not yet been through our rigorous Quality Assurance procedures.

Please be patient while your comparison is generated.

Maryland Department of Natural Resources, 580 Taylor Avenue, Annapolis, MD 21401

(877) 620-8DNR