No statement contained in this article shall be construed as preventing any special agreement or arrangement between the city and any other public corporation or entity, whereby the city undertakes to provide for the construction, acceptance, maintenance or operation of facilities for the collection, pumping or other means of transmission of sewage from the public agencies, pursuant to any appropriate legal authorization. However, no special agreement shall be allowed to contravene federal, state or local pretreatment standards. (Ord. 2006-02 (part), 2006: Prior code § 4264)