9-2-2: MATTER EXCLUDED FROM SANITARY SEWERS:
   (A)   From All Sewers: Sewage, water or any matter having the following characteristics shall, under no conditions, be discharged into, be placed where they might find their way into or be allowed to run, leak or escape into any part of the sewer system:
      1.   Ashes, cinders, sand, earth, gravel, coal, rubbish or any matter which is chemically or physically stable for at least five (5) days at twenty degrees (20°) Centigrade, or which would form a deposit or obstruction or damage or reduce the capacity of the sewer into which it was placed.
      2.   Inflammable, explosive or poisonous liquids, gases or solids or any matter which after entrance into a sewer might reasonably be expected to form in any way such inflammable, explosive or poisonous liquids, gases or solids.
      3.   Matter of any nature at a temperature above one hundred degrees (100°) Centigrade.
      4.   Liquid matter of any nature containing suspended solids in excess of one thousand (1,000) parts per million.
      5.   Matter of any nature containing five (5) day biochemical oxygen demand in excess of three hundred (300) parts per million.
      6.   Animal or vegetable greases, oils or matter containing animal or vegetable grease or oil of any nature in excess of three hundred (300) parts per million, or any petroleum products.
      7.   Liquid matter with hydrogen ion concentration below 5.5 or above 9.0.
      8.   Any matter which, in the opinion of the Director, might interfere with the satisfactory operation of any treatment plants or any portion of the sewer system; provided, however, with the written approval of the Director being first obtained, sewage, wastes or other matter herein excluded, may be discharged into the sewage system upon the payment to the Town of additional costs for processing the same as hereinafter provided and set forth.
   (B)   From Storm Sewers: In addition to the matter excluded heretofore, all other matter of any nature shall be excluded from those parts of the sewer system designated by the Director as storm sewers, excepting only such waters as hereinbefore authorized. Such drainage water shall be directed into a storm sewer only under the authorization and direction of the Director.
   (C)   In addition to the matter heretofore, discharge of any stormwater, surface water, groundwater, roof runoff, sub- surface drainage, uncontaminated cooling water, or unpolluted industrial process water shall be excluded from all parts of the sewer system designated by the Director as the sanitary sewer system.