Green Lane Sewage Spill 24.9.19
|Nitrate top score|
Last weekend was the annual Waterblitz co-ordinated by the Earthwatch Institute's Freshwater watch. Volunteers head out with testing kits over the same long weekend so that all the data points are comparable to the next.The data goes to a central database so that researchers can identify areas for further investigation. Nitrates and Phosphates are tested at 5 sample sites and I usually choose the same ones. The confluence of the Bonesgate and the Hogsmill has had phosphate levels and the two sites below the Hogsmill Sewage works always has high nitrate readings.