Water Resource Associates
A network of consultants in water resources, water quality, hydrology, hydrogeology and flooding.
Point Source and Diffuse Pollution in The Tame and Anker River System.
The impacts of diffuse and point source pollution climate change on water quality in the Tame and Anker Rivers has been assessed using the INCA suite of Models to simulate flow, phosphorus, and ecology. The model has been used to assess the effects of different covers.
Background
A key application of the model is to simulate the scenarios for the different treatment of phosphorus at the STWs. The first figure shows the results for the Tame and Anker for a baseline scenario (ie the current state) and 2 treatment scenarios assuming the UWWTD and the BAT scenario. The results are shown for the each reach boundary along the rivers and information on the means, plus and minus the standard deviations and the 95 percentile levels.
The second figure shows the effects of agricultural runoff for the Anker. The first of these shows the seasonal patterns of SRP with SRP levels rising to 1 mg/l in winter flow conditions but becoming low in low flow summer conditions. The second gives the broad annual average figures and shows the mean effect of agriculture on the river SRP. In broad terms the agricultural sources represent 9% of the total SRP in the Anker whereas this falls to 5% in the Tame reflecting the higher proportion of direct discharges.
Scope of work by Water Resource Associates Ltd
Applications of the INCA Model to assess diffuse and point source pollution in catchments and assess consent levels for STWs
Results
Report to Severn Trent on Modelling of water quality standards in the Rivers Anker and Tame.
Contact Paul Whitehead for further information