Legal Documents of Mountain City

In order to comply with Federal Industrial Pretreatment Rules 40 CFR § 403 and Tennessee Pretreatment Rules 0400-40-14, 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.
2. Users wishing to discharge pollutants at higher concentrations than "Table A: Plant Protection Criteria" of § 18-109(3), 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 § 18-305.
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 the ordinance comprising this chapter.

   Table B: Local Limits

   Pollutant	Monthly Average* Maximum Concentration (mg/l)	Daily Maximum Concentration (mg/l)
   Arsenic	1.0752	1.6128
   Benzene	0.5374	0.8061
   Cadmium	0.0655	0.098
   Carbon tetrachloride	10.69	16.03
   Chloroform	9.43	14.15
   Chromium III	42.42	63.64
   Chromium VI	42.24	63.64
   Copper	4.714	7.071
   Cyanide	0.540	0.810
   Ethybenzene	1.692	2.539
   Lead	3.474	5.211
   Mercury	0.0227	0.034
   Methylene chloride	4.099	6.148
   Molybdenum	1.2530	1.879
   Napthalene	0.3214	0.4821
   Nickel	10.5	15.75
   Phenol	19.37	29.0
   Selenium	0.920	1.380
   Silver	0.348	0.522
   Tetrachloroethylene	5.931	8.896
   Toluene	9.141	13.711
   Total Phthalate	2.55	3.825
   Trichloroethlene	4.264	6.396
   1,1,1-Trichoroethane	10.69	16.03
   1,2 Transdichloroethylene	0.3	0.45
   Zinc	2.357	3.535

   *Based on twenty-four (24) hour flow proportional composite samples unless specified otherwise.

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 users.

   Table C: Surcharge and Maximum Limits

   Parameter	Surcharge Limit	Maximum Concentration
   Ammonia, nitrogen as	25 mg/l	35 mg/l
   Oil and grease	50 mg/l	100 mg/l
   BOD	300 mg/l	600 mg/l
   Suspended Solids	300 mg/l	600 mg/l

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 town 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. (1994 Code, § 18-2A01, modified)