General Prohibitions. No user shall introduce or cause to be introduced into the POTW any pollutant or wastewater which causes pass through or interference. These general prohibitions apply to all users of the POTW whether or not they are subject to categorical pretreatment standards or any other national, state, or local pretreatment standards or requirements. Except as hereinbefore provided, no person shall discharge or cause or permit to be discharged into the public sewer any of the following described substances, wastes or waters:
(A) Any liquid or vapor having a temperature greater than 140° F. (60° C), or any wastewater which will cause the WPC Plant's influent to exceed 104° F. (40° C).
(B) Petroleum oil, nonbiodegradable cutting oil, or products of mineral oil origin, in amounts that will cause interference or pass through. This shall include but not be limited to any waters or wastes from industrial sources containing more than 100 milligrams per liter of total oil and grease (TOG). Acceptable limits for animal-vegetable based fats, oils and grease shall be determined by the Board of Public Works and set out in the Sewer Utility Rules and Regulations. Said maximum limits shall be calculated and set at an amount shown not to cause interference or obstruction in the collection system and/or sewerage works, and shall be reevaluated and adjusted as necessary to protect the integrity of the sewer utility.
(C) Any gasoline, benzene, naphtha, fuel oil, mineral oil or any other flammable or explosive solid, liquid or gas.
(D) Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health and safety problems.
(E) Any garbage that has not been properly pretreated and reduced as provided for in the definition of ground garbage in § 51.001.
(F) Any ashes, cinders, sand, mud, straw, shavings, wood, metal, glass, rags, feathers, tar, plastics, paunch manure, butchers' offal or any 6other solid or viscous substances capable of causing obstruction to the flow in sewers or other interference with the proper operation of the sewerage system or the sewage treatment plant.
(G) Any waters or wastes having a pH less than 6.0 or greater than 12.0 or having any other corrosive property capable of causing damage or posing hazards to the structures, equipment or personnel of the sewage works.
(H) Any waters or wastes containing toxic substances, as defined under § 307 (b) and (c) of the Clean Water Act in sufficient quantity to interfere with the biological/biochemical process of the sewage treatment plant or that will pass through the plant into the receiving waters or accumulate in the sludges generated by the plant in amounts exceeding the standards set forth by federal, state, interstate, or local statute, rule, regulation, or ordinance, or will prevent the disposal of the sludges by the plant in accordance with § 405 of said Act.
(I) Any toxic radioactive isotopes, without a special permit. The radioactive isotopes of I 131 and P 32 used in hospitals are not prohibited, if they are properly diluted before being discharged into the sewerage system, as further defined in the general rules and regulations.
(J) Pollutants, including oxygen-demanding pollutants (BOD, etc.), released in a discharge at a flow rate and/or pollutant concentration which, either singly or by interaction with other pollutants, will cause interference with the POTW; including but not limited to any waters or wastes that for a duration of 15 minutes or more have a concentration more than five times the average concentration of BOD or suspended solids of the user's sewage discharged during a 24- hour period of normal operation.
(K) Any waters or wastes containing suspended solids of such character and quantity that unusual provisions, attention and expense would be required to handle such materials at the sewage treatment plant, its pumping stations or other facilities.
(L) Any waters or wastes containing incompatible pollutants as herein described.
(M) Any waters or wastes containing toxic ions, compounds, or substances in concentrations or amounts exceeding the limitations set forth by the Board of Public Works and published in the general rules and regulations.
(N) Any bulk waste, either industrial or domestic, without prior written approval of the Superintendent.
(O) Any substances with objectionable color not removed by the treatment process, such as, but not limited to dye waste and vegetable tanning solutions.
(P) The City reserves the right to refuse, deny or revoke the connection of any user in the event the sewerage service requirements of the user, in the judgment of the Superintendent could or would impose an excessive burden on the sewage works or in the event the user is or has been in repeated violation of this chapter. The City further reserves the right in the event of any emergency, to restrict the allowable discharge received from any or all users of the sewerage system during the time of such emergency.
(Q) Pollutants which create a fire or explosion hazard in the City's treatment works or sewage system, including, but not limited to, wastestreams with a closed cup flashpoint of less than 140° Fahrenheit, or 600 centigrade using test methods specified in 40 CFR 261.21.
(R) The introduction of inflow sources to any sanitary sewer.
(S) Construction of new combined sewers outside of the existing combined sewer service area;
(T) Any new inflow/clear water connection of a new building that is not separate and distinct from the sanitary waste connection, to facilitate disconnection of the former should a separate storm sewer become available.
(Ord. G-5-18, passed 3-13-18) Penalty, see § 51.999