Special agreements and arrangements between the Department and any person may be established when, in the opinion of the Director, unusual or extraordinary circumstances compel special terms and conditions. The Director shall consider the total cost of application of technology in relation to the pollutant reduction benefits to be achieved from the application, the quality of pollutants that will be included in the discharge, the impact of those pollutants on the City’s POTW, the City of Indianapolis’ POTW and the receiving stream and other factors as the Director deems appropriate. A violation of a term of a special agreement shall be considered a violation of this chapter. There cannot be special agreements and arrangements where federal categorical pretreatment standards and requirements apply.