Use links below for more maps from the report on “Identification of Critical Source Areas of Phosphorus within the Vermont Sector of the Missisquoi Bay Basin.”
The report was published on Dec. 15, 2011, and was written by Stone Environmental under a contract with the Lake Champlain Basin Program.
See our Information page for more information about Critical Source Areas and to view/download the report. Please be sure and review the report in order to understand how the information in the following maps was collected and compiled.
Please click on the following links to view/download maps showing what current models estimate to be the average annual load of phosphorus in kilograms per hectare (2.2 pounds per 2.5 acres) for the following areas in Franklin County:
3. Rock River
5. Pike River
9. Tyler Branch
10. Trout River
As noted above, please see the full report for further information.
PLEASE NOTE: Other than the crops (permanent corn, corn/hay rotation, or permanent hay) there is no consideration given to management practices. For the purposes of these maps, changing management practices are difficult to track, and using the wrong management details can produce erroneous information. Therefore the information in the maps is based on detailed information about the soils, field slopes, proximity to streams, rainfall and crop classification at the time of this study.
We appreciate the management practices that many farmers have undertaken to improve water quality. Unfortunately, these cannot be reflected in the results of these maps, but they are reflected in reductions of phosphorus and sediment coming off of agricultural lands and flowing into local streams, rivers and northern Lake Champlain.