(1) Why was the Somerset East wastewater treatment works not (a) included in the assessment for Green Drop certification and (b) awarded a zero rating on the basis of the municipality’s admission to the department that the works are dysfunctional; (2) whether other wastewater treatment works were not included in the assessment on the basis of their dysfunctionality; if not, (a) which works were excluded from assessment and (b) what are the reasons for excluding works from assessment; if so, (i) what are the details of these works and (ii) why were they not awarded a zero score?