Fig. 6. Mean nitrate N concentrations and 
15N-NO3 with standard error (no error shown for stations with only one sample) for on-site stream stations and Stewarts Creek stations upstream, adjacent to, and downstream of the farms.
Fig. 6. Mean nitrate N concentrations and 15N-NO3 with standard error (no error shown for stations with only one sample) for on-site stream stations and Stewarts Creek stations upstream, adjacent to, and downstream of the farms.