No person shall discharge or cause to be discharged any stormwater, surface water, groundwater, roof runoff, subsurface drainage, uncontaminated cooling water, or unpolluted industrial process waters to any sanitary sewer.
(Ord. 88-O-430 Art. V § 1)
Stormwater and all other unpolluted drainage shall be discharged only into such sewers as are specifically designated as storm sewers, or to a natural outlet approved by the Department of Environmental Quality. Industrial cooling water or unpolluted process waters may be discharged, on approval of the city, to a storm sewer or natural outlet.
(Ord. 88-O-430 Art. V § 2)
No person shall discharge or cause to be discharged any of the following described waters or wastes to any public sewers:
A.
Any gasoline, benzene, naphtha, fuel oil, or other flammable or explosive liquid, solid, or gas;
B.
Any waters or wastes containing hazardous, toxic or poisonous solids, liquids, or gases in sufficient quantity, either singly or by interaction with other wastes to injure or interfere with any sewage treatment process, constitute a hazard to humans or animals, create a public nuisance, or create any hazard in the receiving waters of the sewage treatment plant, including but not limited to cyanide in excess of two mg/l as CN in the wastes as discharged to the public sewer;
C.
Any waters or wastes having a pH lower than 5.5, or above 9.5, or having any other corrosive property capable of causing damage or hazard to structures, equipment, humans or animals and personnel of the sewage works;
D.
Solid or viscous substances in quantities or of such size capable of causing obstruction to the flow in sewers, or other interference with the proper operation of the sewage disposal works by way of example, but not limited to, ashes, cinders, clay, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, unground garbage, whole blood, paunch manure, hair and fleshings, entrails, and paper dishes, cups, milk containers, etc., either whole or ground by garbage grinders.
(Ord. 88-O-430 Art. V § 3)
No person shall discharge or cause to be discharged the following described substances, materials, waters, or wastes if it appears likely in the opinion of the city that such wastes can harm either the sewers, sewage treatment process, or equipment, have an adverse effect on the receiving waters, or can otherwise endanger life, limb, public property, or constitute a nuisance. In forming their opinion as to the acceptability of these wastes, the city shall give consideration to such factors as the quantities of subject wastes in relation to design capacities and measured flows and velocities in the sewers, materials of construction of the sewers, nature of the sewage treatment process, capacity of the sewage treatment plant, degree of treatability of wastes in the sewage treatment plant, and other pertinent factors. The substances prohibited are:
A.
Any liquid or vapor having a temperature higher than 150 degrees Fahrenheit (65 degrees Celsius);
B.
Any water or waste containing fats, wax, grease, or oils, whether emulsified or not, in excess of 100 mg/l or containing substances which may solidify or become viscous at temperatures between 32 and 150 degrees Fahrenheit (0 and 65 degrees Celsius);
C.
Any garbage that has not been properly shredded. The installation and operation of any garbage grinder equipped with a motor of three-fourths horsepower (0.76 hp metric) or greater shall be subject to the review and approval of the city;
D.
Any waters or wastes containing strong acid iron pickling wastes, or concentrated plating solutions whether neutralized or not;
E.
Any waters or wastes containing iron, chromium, copper, zinc, and similar objectionable, hazardous or toxic substances; or wastes exerting an excessive chlorine requirement, to such degree that any such material received in the composite sewage at the sewage treatment works exceeds the limits established by the city for such materials;
F.
Any waters or wastes containing phenols or other taste or odor-producing substances, in such concentrations exceeding limits which may be established by the city as necessary, after treatment of the composite sewage, to meet the requirements of the state, federal, or other public agencies having jurisdiction for such discharge to the receiving waters;
G.
Any radioactive wastes or isotopes of such half-life of concentration as may exceed limits established by applicable state, federal or city regulations;
H.
Materials which exert or cause:
1.
Unusual concentrations of inert suspended solids (such as, but not limited to, Fullers earth, lime slurries, and lime residues) or of dissolved solids (such as, but not limited to, sodium chloride and sodium sulfate);
2.
Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions);
3.
Unusual BOD, chemical oxygen demand, or chlorine requirements in such quantities as to constitute a significant load on the sewage treatment works;
4.
Unusual volume of flow or concentration of wastes.
I.
Waters or wastes containing substances which are not amenable to treatment or reduction by the sewage treatment processes employed, or are amenable to treatment only to such degree that the sewage treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters.
(Ord. 88-O-430 Art. V § 4)
If any waters or wastes are discharged, or are proposed to be discharged to the public sewers, which waters contain the substances or possess the characteristics enumerated in BMC § 13.10.320, and which in the judgment of the city, may have a deleterious effect upon the sewage works, processes, equipment, or receiving waters, or which otherwise create a hazard to life or constitute a public nuisance, the city may:
A.
Reject the wastes;
B.
Require removal of the wastes by the producer;
C.
Require pretreatment to an acceptable condition for discharge to the public sewers;
D.
Require control over the quantities and rates of discharge; and/or
(Ord. 88-O-430 Art. V § 5)
If the city permits the pretreatment or equalization of waste flows, the design and installation of the plants and equipment shall be prepared and submitted by a registered professional engineer, shall be subject to the review and approval of the city and DEQ, and subject to the requirements of all applicable codes, ordinances, and laws.
(Ord. 88-O-430 Art. V § 6)
Grease, oil and sand interceptors shall be provided at establishments producing industrial wastewater when, in the opinion of the city, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts, or any flammable wastes, clay, sand, or other harmful ingredients. All interceptors shall be of a type and capacity approved by the city, and shall be located as to be readily and easily accessible for cleaning and inspection.
(Ord. 88-O-430 Art. V § 7; Ord. 25-O-816 § 2 (Exh. A))
Where preliminary treatment, interceptors or flow-equalizing facilities are provided for any waters or wastes at establishments producing industrial waste, they shall be installed and maintained continuously in satisfactory and effective operation by the owner at his expense. All grease, oil and sand interceptors, pretreatment devices, control manholes, and other related apparatus shall be inspected to verify correct function upon installation and at least annually thereafter. Annual inspections shall be performed by a city of Brookings approved vendor and shall comply with all state, county, and city requirements. A copy of the annual inspection report shall be provided to the city of Brookings public works director.
(Ord. 88-O-430 Art. V § 8; Ord. 16-O-765 § 2; Ord. 25-O-816 § 2 (Exh. A))
When required by the city, the owner of any property serviced by a sewer carrying wastes other than residential shall install a suitable control manhole together with such necessary meters and other appurtenances in the sewer to facilitate observation, sampling, and measurement of the wastes. Such manhole, when required, shall be accessibly and safely located, and shall be constructed in accordance with plans approved by the city. The manhole shall be installed by the owner at his expense, and shall be maintained by him so as to be safe and accessible at all times.
(Ord. 88-O-430 Art. V § 9)
When the loading or flows of wastes is sufficient to warrant more accurate measurement the city may require the installation of flow measuring or monitoring and measuring devices which continually record the condition and volume of wastes entering the public sewer system. Such instruments and devices shall be installed, maintained and operated by the city and all costs therefor shall be billed to and be paid by the producer of such wastes.
(Ord. 88-O-430 Art. V § 10)
All measurements, tests, and analyses of the characteristics of waters and wastes to which reference is made in this chapter shall be determined in accordance with the latest edition of “Standard Methods for the Examination of Water and Wastewater”, published by the American Public Health Association, and shall be determined at the control manhole provided, or upon suitable samples taken at said control manhole. In the event that no specific manhole has been required, the control manhole shall be considered to be the nearest downstream manhole in the public sewer to the point at which the building sewer is connected. Sampling shall be carried out by customarily accepted methods to reflect the effect of constituents upon the sewage disposal works and to determine the existence of hazards to health, safety and property.
(Ord. 88-O-430 Art. V § 11)
All designs, plans and specifications for line extensions, additions, or modification to the sewage disposal works shall be submitted to the city for approval prior to any construction work and, wherever required, shall also be submitted and approved by the Oregon Department of Environmental Quality.
(Ord. 88-O-430 Art. V § 12)