(A) No person shall discharge or cause to be discharged the following described substances, materials, waters or other wastes which can harm either the sewers, wastewater treatment process or equipment, have an adverse effect on the receiving stream, or can otherwise endanger life, limb, public property or constitute a nuisance. The acceptability of these wastes will be based on consideration to such factors as the quantities of subject wastes in relation to flows and velocities in the sewers, materials of construction of the sewers, nature of the wastewater treatment process, capacity of the wastewater treatment plan, degree of treatability of wastes in the wastewater treatment plant and other pertinent factors.
(B) The substances prohibited are:
(1) Any petroleum distillates or other flammable or explosive liquid, solid or gas;
(2) Any water or wastes containing toxic pollutants, malodorous or poisonous solids, liquids or gases, in sufficient quantity, either singly or by interaction with other wastes, to injure or interfere with any wastewater treatment process, constitute a hazard to humans or animals, create a public nuisance, or create any hazard in the receiving waters of the wastewater treatment plant, or of preventing entry into sewers for their maintenance and repair. A toxic pollutant shall include but not be limited to any pollutant identified pursuant to § 307(a) of the Act;
(3) Any water or waste, acid and alkaline in reaction, having a pH lower than five and five-tenths or having any other corrosive property capable of causing damage or hazard to structures, equipment and personnel of the sewerage works. The upper limit of pH for any industrial wastewater discharge shall be established under the dischargers’ state discharge permit. Free acids and alkalies must be neutralized, at all times, within the above pH range;
(4) Solid or viscous substance in quantities or of such size capable of causing obstruction of the flow in sewers, or other interference with the proper operation of the sewerage works, such as, but not limited to, ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, chemical residues, cannery waste, bulk solid, cardboard, styrofoam, beer or distillery slops, lime residues, lime slurry, paint residues, unground garbage, whole blood, paunch manure, hair and fleshings, entrails and paper dishes, cups, milk containers, whey and the like, either whole or ground by garbage grinders. In no case shall a substance discharged cause the facilities to be in noncompliance with sludge use or disposal criteria, guidelines or regulations developed under § 405 of the Act, or under the Resource Conservation and Recovery Act, the Clean Air Act, the Toxic Substances Control Act or State criteria applicable to the sludge management method being used;
(5) Any water or waste containing suspended solids of such character and quantity that unusual attention or expense is required to handle such materials at the wastewater treatment plant;
(6) Any storm water, roof drains, spring water, cistern or tank overflow, footing drain, discharge from any vehicle wash rack or water motor, or the contents of any privy vault, septic tank or cesspool, or the discharge of effluent from any air conditioning machine or refrigeration unit;
(7) Any liquid or vapor having a temperature higher than 150°F (65°C);
(8) Any water or waste containing fats, wax, grease or oils, whether emulsified or not, in excess of 50 mg/l or containing substances which may solidify or become viscous at temperatures between 32 and 150°F (0 and 65°C);
(9) Any garbage that has not been properly shredded. The installation and operation of any garbage grinder equipped with a motor of three-fourths horsepower (0.75 horsepower metric) or greater shall be subject to the review and approval of the Director;
(10) Any water or waste containing strong acid, iron pickling wastes or concentrated plating solutions, whether neutralized or not;
(11) Any water or waste containing iron, chromium, copper, zinc and similar objectionable or toxic substances; or waste exerting an excessive chlorine requirement to such degree that any such material received in the composite sewage at the wastewater treatment works exceeds the limits established by the Commission and by the state regulatory agencies for such materials;
(12) Any water or waste containing phenols or other taste or odor producing substances, in such concentrations, exceeding limits which may be established by the Commission as necessary, after treatment of the composite sewage, to meet the requirements of the state, federal or other public agencies of jurisdiction for such discharge to the receiving waters;
(13) Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the applicable state or federal regulations;
(14) Materials which exert or cause:
(a) Unusual concentrations of inert suspended solids (such as, but not limited to, Fuller’s earth and lime residues) or of dissolved solids (such as, but not limited to, sodium chloride and sodium sulfate);
(b) Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions);
(c) Unusual BOD, chemical oxygen demand or chlorine requirements in such quantities as to constitute a significant load on the wastewater treatment works; and
(d) Unusual volume of flow or concentration of wastes constituting “slugs” as defined herein.
(15) Unusual quantities of wastes or substances which the treatment plant cannot treat to the minimal level recommended by the state or federal regulatory agencies;
(16) All discharge of wastewater shall also conform with the agreements established between the City of New London, the Town of Waterford and the Town of East Lyme; and
(17) Sewage with a concentration of pollutants in excess of the following limits:
Pollutant | Concentration Parts/million(mg/l) |
Pollutant | Concentration Parts/million(mg/l) |
Arsenic as As | 0.05 |
Barium as Ba | 5.0 |
Boron as Bo | 5.0 |
Cadmium | 0.1 |
Chromium (Cr + 6) | 0.05 |
Chromium (total) | 1.0 |
Copper as Cu | 1.0 |
Cyanides as Cn (amendable) | 0.1 |
Fluoride as F | 20 |
Lead | 0.1 |
Magnesium as Mg | 100 |
Manganese as Mn | 5.0 |
Mercury | 0.01 |
Nickel | 1.0 |
Silver | 0.1 |
Tin | 2.0 |
Zinc as Zn | 1.0 |
(Ord. passed 3-17-1991; Ord. passed 9-12-1998) Penalty, see § 53.999
Editor’s note:
TM Volume 18, page 63; TM Volume 21, page 584