Locations
Where did we sample?
Locations for sampling were chosen to cover the geographical reach of the upper River Swale from its origin at Wainwath, through the village of Grinton, an urban stretch through Richmond town, past the treatments works at Easby and downstream at the village of Brompton upon Swale.
Sample points were particularly focused to be near releases from combined sewage outflows (CFO) and included specific outflows from the Richmond Sewage Treatment Works and Colburn Beck downstream of the Catterick Sewage Treatment Works. Locations of the eight commonly sampled points are shown in Figure 1 below and detailed in Table 1.
The sampling thus covers agricultural locations in the upper reaches of the river allowing comparison with urban locations further downstream.
