Legal Documents of Sweetwater

In order to comply with Federal Industrial Pretreatment Rule 40 C.F.R. 403 and Tennessee Pretreatment Rules 1200-4-14 and to fulfill the purpose and policy of this chapter the following regulations are adopted.

1. User discharge restrictions. All system users must follow the general and specific discharge regulations specified in § 18-109 of this title.
2. Users wishing to discharge pollutants at higher concentrations than Table A Plant Protection Criteria of § 18-109, or those dischargers who are classified as significant industrial users will be required to meet the requirements of this chapter. Users who discharge waste which falls under the criteria specified in this chapter and who fail to or refuse to follow the provisions shall face termination of service and/or enforcement action specified in § 18-205.
3. 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 noncompliance.

4. Discharge permits shall limit concentrations of discharge pollutants to those levels that are established as local limits, Table B or other applicable state and federal pretreatment rules which may take effect after the passage of this chapter.

   Table B -- Local Limits

   Pollutant	Monthly Maximum (mg/l)	Average* Concentration	Daily Maximum Concentration (mg/l)
   Arsenic			0.0312
   Benzene			0.1260
   Cadmium			0.0180
   Carbon Tetrachloride			12.814
   Chloroform			2.1815
   Chromium VI			1.0535
   Copper			1.1393
   Cyanide			0.0863
   Ethylbenzene			0.2420
   Lead			0.2572
   Mercury			0.0019
   Methylene chloride			1.0663
   Molybdenum			0.0059
   Napthalene			0.0350
   Nickel			0.1763
   Phenol			4.2721
   Selenium			0.0265
   Silver			0.1301
   Tetrachloroethylene			1.0670
   Toluene			1.8288
   Total Phthalate			1.4245
   Trichloroethylene			0.7746
   1,1,1-Trichloroethane			1.7067
   1,2 Transdichloroethylene			0.0354
   Zinc			2.0672

   *Based on 24-hour flow proportional composite samples unless specified otherwise.1.0535

5. Surcharge limits and maximum concentrations. Dischargers of high strength waste may be subject to surcharges based on the following surcharge limits. Maximum concentrations may also be established for some years.

   Table C--Surcharge and Maximum Limits

   Parameter	Surcharge Limit	Maximum Concentration
   Total Kjeldahl Nitrogen (TKN)	25	68
   Oil and Grease	50	100
   MBAS	35	35
   BOD	300	600
   Suspended Solids	300	600

6. 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 chapter. 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 Tennessee 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.
7. User inventory. The superintendent will maintain an up-to-date inventory of users whose waste does or may fall into the requirements of this chapter, and will notify the users of their status.
8. Right to establish more restrictive criteria. No statement in this chapter 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 Tennessee Department of Environment and Conservation and/or the United States Environmental Protection Agency. (as added by Ord. #883, July 2012)