(A) Wastewater containing more than fifty (50) milligrams per liter of petroleum oil, nonbiodegradeable cutting oils, or products of mineral oil origin.
(B) Wastewater containing floatable oils, fat, or grease, whether emulsified or not, in excess of one hundred and fifty milligrams per liter (150 mg/l) or containing substances which may solidify or become viscous at temperatures 32o-150o (0-65oC).
(C) Any garbage that has not been properly shredded. Garbage grinders may be connected to sanitary sewers from homes, motels, institutions, restaurants, hospitals, catering establishments, or similar places where garbage originates from the preparation of food in kitchens for the purpose of consumption on the premises or when served by caterers. Ground paper products such as cups, dishes, napkins, and milk containers shall not be discharged to the sewer system.
(D) Any wastewater containing toxic pollutants in sufficient quantity, either singly or by interaction with other pollutants which injure or interfere with any wastewater treatment process, constitute a hazard to humans or animals, causes the city to violate the terms of its KPDES permit, prevents the use of acceptable sludge disposal methods, or exceed a limitation set forth in a Categorical Pretreatment Standard.
(E) Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the city in compliance with applicable state and federal regulations.
(F) Any water or wastes which, by interaction with other water or wastes in the public sewer system, release obnoxious gases, form suspended solids which interfere with the collection system, or create a condition deleterious to structures and treatment processes.
(G) Any wastewater with a color level above 600 ADMI, unless specifically noted in the industrial user permit (IUP).
(H) Waters or wastes containing substances which are not amenable to treatment or reduction by the wastewater treatment processes employed to the extent required by the city's NPDES/KPDES permit.
(I) Any waste(s) or wastewater(s) classified as a hazardous waste by the Resource Conservation and Recovery Act (RCRA) without a sixty (60) day prior notification of such discharge to the General Superintendent. This notification must include the name of the hazardous waste, the EPA hazardous waste number, type of discharge, volume/mass of discharge and time of occurrence(s). The General Superintendent may prohibit or condition the discharge(s) at any time.
(J) (1) Any water or wastes which have characteristics based on a twenty-four (24) hour composite sample, grab or a shorter period composite sample, if more representative, that exceed the following normal maximum domestic wastewater parameter concentrations:
Parameter | Maximum Allowable Concentration Without Surcharge Fee Assessment |
BOD | 250 mg/1 |
COD | 750 mg/l |
TSS | 300 mg/l |
NH3-N | 30 mg/l |
Oil & Grease (total) | 150 mg/l |
(2) Any person discharging wastewater exceeding the maximum allowable concentration as noted above, will be subject to a surcharge fee for each pound loading over and above the allowable concentration. Any other amenable constituents requiring the addition of specific chemicals for proper treatment will also be subject to surcharge as noted on the industrial user permit. Exceedance of the effluent limits specified above shall not be deemed to constitute a violation of a permit condition or this ordinance if the appropriated surcharge fee is paid and the discharge does not cause interference or pass-through of the POTW.
(K) The General Manager of the MUPB is authorized to establish local limits pursuant to 40 CFR 403.5(c). The discharge limitations as established by Appendix A, Table 1 are for characteristics of any wastewaters to be discharged into the municipal sewer system, subject to any compliance schedule as established in the industrial user permit. All significant industrial users must comply with these limitations where they are more stringent than applicable state and federal regulations. Based upon the sampling program at the Morehead Wastewater Treatment Plant, the discharge limitations may be adjusted to reflect the POTW's needs.
(L) The MUPB has received authority through the U.S. EPA and state statutes to enforce the requirements of 40 CFR Chapter I, Subchapter N, Parts 405 - 471 and 40 CFR Part 403. All users shall comply with the requirements of those regulations. The MUPB General Manager and/or his designee may develop Best Management Practices (BMPs) by ordinance or in individual wastewater discharge permits to implement local limits and the requirements of this chapter.
(Ord. 14:95, passed 5-25-95; Am. Ord. 5:96, passed 3-12-96; Am. Ord. 20:98, passed 10-12-98; Am. Ord. 02:2012, passed 1-25-12)