(c) In making its orders and determinations, the Board shall take into consideration all the facts and circumstances bearing upon the reasonableness of the emissions, discharges or deposits involved including, but not limited to: (i) the character and degree of injury to, or interference with the protection of the health, general welfare and physical property of the people; (ii) the social and economic value of the pollution source; (iii) the suitability or unsuitability of the pollution source to the area in which it is located, including the question of priority of location in the area involved; (iv) the technical practicability and economic reasonableness of reducing or eliminating the emissions, discharges or deposits resulting from such pollution source; and (v) any subsequent compliance. Whenever a proceeding before the Board may affect the right of the public individually or collectively to the use of community sewer or water facilities provided by a municipally owned or publicly regulated company, the Board shall at least 30 days prior to the scheduled date of the first hearing in such proceeding, give notice of the date, time, place, and purpose of such hearing by public advertisement in a newspaper of general circulation in the area of the State concerned. The Board shall conduct a full and complete hearing into the social and economic impact which would result from restriction or denial of the right to use such facilities and allow all persons claiming an interest to intervene as parties and present evidence of such social and economic impact.