Rating evaluation method for groundwater pollution source intensity

A method of prevention and control and overall management of groundwater pollution source, comprising:

• performing a field investigation on a groundwater pollution source, to determine whether a seepage prevention or a potential seepage prevention is present or not;
• performing a rating evaluation of groundwater pollution source intensity, comprising the steps of:
• step 1:
• determining pollution source characteristic indices, and weights and scores thereof;
• wherein the pollution source characteristic indices measure the magnitude of the potential of a pollution source for outputting pollution, the weights of the pollution source characteristic indices are used to evaluate the relative magnitude of the contribution of the pollution source characteristic indices to groundwater pollution, and evaluation of pollution source hazard is performed using an overlay and index method;
• step 2:
• determining vadose zone characteristic indices and scores thereof, wherein the vadose zone characteristic indices include a vadose zone antifouling property index and a vadose zone vulnerability index, and performing evaluation of vadose zone resistance;
• step 3:
• with respect to a field not considering the vadose zone antifouling property, directly using a result of the rating evaluation of pollution source hazard obtained in step 1 as a result of the rating evaluation of the groundwater pollution source intensity without performing step 2;
• with respect to a field considering the vadose zone antifouling property, performing the evaluation of pollution source hazard of step 1 and the evaluation of vadose zone resistance of step 2 respectively, and combining two evaluation results to obtain a result of the rating evaluation of the groundwater pollution source intensity;
• and
• applying a protection or management measure to the groundwater pollution source, according to the result of the rating evaluation of the ground water pollution source intensity.