In order to comply with Federal Industrial Pretreatment Rules 40 C.F.R. Part 403 and Tennessee Pretreatment Rules 1200-4-14 and to fulfill the purpose and policy of this chapter the following regulations are adopted.
(A) User discharge restrictions. All system users must follow the general and specific discharge regulations specified in § 51.09 of this chapter.
(B) Higher concentration discharges. Users wishing to discharge pollutants at higher concentrations than Table A: Plant Protection Criteria of § 51.09, or those dischargers who are classified as significant industrial users will be required to meet the requirements of this subchapter. Users who discharge waste which falls under the criteria specified in this subchapter and who fail to or refuse to follow the provisions shall face termination of service and/or enforcement action specified in § 51.29.
(C) Discharge regulation. Discharges to the sewer system shall be regulated through use of a permitting system. The permitting system may include any or all of the following activities: completion of survey/application forms, issuance of permits, oversight of users monitoring and permit compliance, use of compliance schedules, inspections of industrial processes, wastewater processing, and chemical storage, public notice of permit system changes and public notice of users found in significant non- compliance.
(D) Discharge permits. Discharge permits shall limit concentrations of discharge pollutants to those levels that are established as Table B: Local Limits or other applicable state and federal pretreatment rules which may take effect after the passage of this chapter.
Table B: Local Limits | |
Pollutant | Daily Maximum Concentration (mg/l) |
Table B: Local Limits | |
Pollutant | Daily Maximum Concentration (mg/l) |
Arsenic | 0.409 mg/l |
Benzene | 0.052 mg/l |
Boron | 34.6196 mg/l |
Cadmium | 0.136 mg/l |
Carbon Tetrachloride | 6.155 mg/l |
Chloroform | 0.914 mg/l |
Chromium (total) | 4.096 mg/l |
Copper | 0.641 mg/l |
Cyanide | 0.251 mg/l |
Ethybenzene | 0.163 mg/l |
Lead | 1.153 mg/l |
Manganese | 34.5523 mg/l |
Mercury | 0.006mg/l |
Methylene chloride | 0.390 mg/l |
Molybdenum | 0.072 mg/l |
Napthalene | 0.050 mg/l |
Nickel | 1.011 mg/l |
Phenol | 1.836 mg/l |
Selenium | 0.055 mg/l |
Silver | 0.256 mg/l |
Tetrachloroethylene | 0.569 mg/l |
Toluene | 0.875 mg/l |
Total Phthalate | 0.688 mg/l |
Trichlorethlene | 0.409 mg/l |
1,1,1-Trichoroethane | 1.025 mg/l |
1,2 Transdichloroethylene | 0.030mg/l |
Zinc | 0.654 mg/l |
(E) Protection of treatment plant influent. The pretreatment coordinator shall monitor the treatment works influent for each parameter in Table A: Plant Protection Criteria. Industrial users shall be subject to reporting and monitoring requirements regarding these parameters as set forth in this subchapter. In the event that the influent at the WWF reaches or exceeds the levels established by Table A or subsequent criteria calculated as a result of changes in pass through limits issued by the State Department of Environment and Conservation, the pretreatment coordinator shall initiate technical studies to determine the cause of the influent violation and shall recommend to the city the necessary remedial measures, including, but not limited to, recommending the establishment of new or revised local limits, best management practices or other criteria used to protect the WWF. The pretreatment coordinator shall also recommend changes to any of these criteria in the event that: the WWF effluent standards are changed, there are changes in any applicable law or regulation affecting same, or changes are needed for more effective operation of the WWF.
(F) User inventory. The Superintendent will maintain an up-to-date inventory of users whose waste does or may fall into the requirements of this subchapter, and will notify the users of their status.
(G) Right to establish more restrictive criteria. No statement in this subchapter is intended or may be construed to prohibit the pretreatment coordinator from establishing specific wastewater discharge criteria which are more restrictive when wastes are determined to be harmful or destructive to the facilities of the WWF or to create a public nuisance, or to cause the discharge of the WWF to violate effluent or stream quality standards, or to interfere with the use or handling of sludge, or to pass through the WWF resulting in a violation of the NPDES permit, or to exceed industrial pretreatment standards for discharge to municipal wastewater treatment systems as imposed or as may be imposed by the State Department of Environment and Conservation and/or the United States Environmental Protection Agency.
(Ord. 699, passed 10-26-2009; Ord. 784, passed 4-25-2016)