ABSTRACT
This chapter describes the preparation of this model, which was developed by Conestoga-Rovers & Associates (CRA) on behalf of Uniroyal. Although the hydraulic design and the treatment system design were significant engineering and technical efforts, the assimilation model was the subject of intense technical review, evaluation and controversy. Although non-contact cooling water discharges at two of the three Municipal-Industrial Strategy for Abatement discharge points, it was treated as one discharge in the model. The sliding-scale factors used by CRA in the determination of all groundwater, surface water and effluent water quality profiles are: Both the use of the geometric mean, and the use of a sliding scale to quantify non-detects, were the subject of debate between the Ministry of Environment and Energy (MOEE) and CRA. The MOEE's criticisms centered on three central issues, as follows: The basis for CRA's determination of the 7Q20 for the Creek and the development of input parameters was described above.
