The Leaf Pack Network is an initiative of Stroud™ Water Research Center. The Stroud Center seeks to advance knowledge and stewardship of freshwater systems through global research, education, and watershed restoration.


Data Entry

The temporary data form has closed. We will be unveiling a new data portal soon. Subscribe to LPN News to be notified when we launch!

Data Viewing

  • View only: scroll down to below the map on this page to view the data entered in the temporary system.
  • If you want to sort and filter the data, print it, or download it in several different file formats, you can do that here.
  • Unfortunately, we do not have the ability to display historic LPN data at this time.

Two Ways to Get Your Water Quality Score

  • Use the Biotic Index Calculator to calculate your stream’s percent EPT, biotic index, and water quality score. You can print your results.
  • The map below will display the calculated values for data entered in the temporary data form. Note: the calculated values and map must be manually updated by the webmaster — your data won’t immediately appear after you’ve submitted the data entry form. Thanks for your patience.

The water quality score for each site is indicated by the map marker color: blue = excellent; green = good; yellow = fair; red = poor. See the data behind the scores.