The use of chemical fertilizers and chemicals, get rid of pests, especially a group of chlorine from organic agriculture around the Casino pot Lake. There is water and cumulation of flows down ground is settling.
The use of chemical fertilizers and chemical pesticides. The group of organochloride from agriculture around the lake. The flow into the water and sediment accumulation.
The use of chemical fertilizers and pesticides. By a dedicated group of organochlorine from agriculture around the moor. Flow and sediment in the water collection