Photo courtesy of Chesapeake Bay Program

RiverTrends Monitor Resources

Active Monitor Resources

This page is for current RiverTrends monitors. Find useful links and videos to help answer frequently asked questions, request supplies, and access digital copies of the manual and datasheets. Still have questions? Contact Sophie Stern, RiverTrends Coordinator, at or 804-793-8792

Training Dates & Recertifications

All 2021 training and recertification events will continue to take place through virtual webinars. Use the links below to register for open events, or contact your group coordinator for more information.

Recertification: Green Aquia, March 6 10-11:30am
Open RiverTrends Recertification April 8, 10-11:30am
Open RiverTrends Recertification, April 17, 10-11:30am

Monitor Documents

Use the links below to download digital copies of the methods manual and blank datasheets.

Additional Monitor Resources

Click on the headings below to submit supply requests, help sourcing your rainfall data, or to upload your data to the Chesapeake Data Explorer.

Here are some sites to help you locate your rainfall data. It is most important to record your rainfall data for 48 hrs before your sampling event. Remember to convert into millimeters before you upload your data.

Community Collaborative Rain, Hail & Snow Network (CoCoRaHS)

Select your county, then choose your date and click ‘Get Map’. Rain gauge data will display in inches.

Weather Underground

Enter your location and date, then click view. The 24 hr rainfall data will display in inches under Precipitation.

NOAA National Weather Service

Enter your location, then click Go. On the right-hand side under More Information, click 3 Day History. Data will display in inches.

If you are running low on supplies or notice you are nearing expiration dates on any of your chemicals, please submit a supply request.

Remember to regularly upload your data to the Chesapeake Data Explorer. Mail in your hard copies of your data sheets to:

Alliance for the Chesapeake Bay
Attn: RiverTrends Coordinator
612 Hull Street Suite 101C Richmond VA 23224

Photo courtesy of Chesapeake Bay Program

Dissolved Oxygen: Sodium Thiosulfate Check and Titration Process

Dissolved Oxygen: Filling your Titrator and Removing Air Bubbles

Dissolved Oxygen: Collecting and Fixing your Sample

Temperature: Measuring Air and Water Temperature

Salinity: Using Your Refractometer

Using a Turbidity Tube

Bacteria: Coliscan Easygel

This is a 6-part series. Select the icon in the top right corner of the video to view more of the bacteria plating video series.

pH: Calibrating your pH Meter (Old Meter)


pH: Calibrating your pH Meter (New Meter)