Essex Rivers Hub

Phosphate levels are high in this water body resulting in a classification of bad for phosphate. There are many causes but the impact from agricultural runoff in the upper reaches is one of the causes for the high levels.

Dissolved oxygen levels fluctuate and although there is no WFD failure for this, levels do drop in late summer and early autumn. One of the reasons for this is most likely the increased plant growth, which is exasperated by the increased nutrient levels in the water from phosphate.


Investigations to confirm failure and the cause of these failures – likely source.

Re-assess location of existing sampling point and add an additional sample point upstream to compare results and ensure dissolved O2 results are correct.

Choosing sampling points that are representative of the majority of the waterbody.

 

 

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