§ 82-238. Pretreatment of wastewater.
(a)
Pretreatment facilities. Users shall provide wastewater treatment as necessary to comply with this article and shall achieve compliance with all categorical pretreatment standards, local limits, and the prohibitions set out in section 82-237(1) of this article within the time limitations specified by EPA, the, or the director, whichever is more stringent. Any facilities necessary for compliance shall be provided, operated, and maintained at the user's expense. Detailed plans describing such facilities and operating procedures shall be submitted to the director for review, and shall receive authorization from the director before such facilities are constructed. The review of such plans and operating procedures shall in no way relieve the user from the responsibility of modifying such facilities as necessary to produce a discharge acceptable to the county under the provisions of this article.
(b)
Additional pretreatment measures.
(1)
Whenever deemed necessary, the director may require users to restrict their discharge during peak flow periods, designate that certain wastewater be discharged only into specific sewers, relocate and/or consolidate points of discharge, separate sewage wastestreams from industrial wastestreams, and such other conditions as may be necessary to protect the POTW and determine the user's compliance with the requirements of this article.
(2)
The director may require any person discharging into the POTW to install and maintain, on their property and at their expense, a suitable storage and flow-control facility to ensure equalization of flow. A wastewater discharge permit may be issued solely for flow equalization.
(3)
Grease, oil, and sand interceptors shall be provided in accordance to the requirements outlined in section 82-251 when, in the opinion of the director, they are necessary for the proper handling of wastewater containing excessive amounts of grease and oil, or sand. Such interceptors shall not be required for residential users. All interception units shall be of a type and capacity approved by the director and shall be located so that they are easily accessible for cleaning and inspection. Such interceptors shall be inspected, cleaned, and repaired regularly, in accordance with the requirements set forth in section 82-251.
(4)
Users with the potential to discharge flammable substances may be required to install and maintain an approved combustible gas detection meter.
(d)
Accidental discharge/slug and spill control plans. At least once every two (2) years, the director shall evaluate whether each significant industrial user needs an accidental discharge/slug control plan. The director may require any user to develop, submit for review and comment, before implementation of the plan. Alternatively, the director may develop such a plan for any user. An accidental discharge/slug control plan shall address, at a minimum, the following:
(1)
Description of discharge practices, including non-routine batch discharges;
(2)
Description of stored chemicals;
(3)
Procedures for immediately notifying the director of any accidental or slug discharge, as required by section 82-241 of this article; and
(4)
Procedures to prevent adverse impact from any accidental or slug discharge. Such procedures include, but are not limited to, inspection and maintenance of storage areas, handling and transfer of materials, loading and unloading operations, control of plant;
(5)
Site runoff, worker training, building of containment structures or equipment, measures for containing toxic organic pollutants, including solvents, and/or measures and equipment for emergency response.
(d)
Hauled wastewater.
(1)
Septic tank waste may be introduced into the POTW only at locations designated by the director, and at such times as are established by the director. Such waste shall not violate section 82-237 of this article or any other requirements established by the county. The director may require septic tank waste haulers to obtain wastewater discharge permits.
(2)
The director shall require haulers of industrial waste to obtain wastewater discharge permits in accordance with the provisions of section 82-239 of this article. The director may require generators of hauled industrial waste to obtain wastewater discharge permits. The director also may prohibit the disposal of hauled industrial waste. The discharge of hauled industrial waste is subject to all other requirements of this article.
(3)
Industrial waste haulers may discharge loads only at locations designated by the director. No load may be discharged without prior consent of the director. The director may collect samples of each hauled load to ensure compliance with applicable standards. The director may require the industrial waste hauler to provide a waste analysis of any load prior to discharge.
(4)
Industrial waste haulers must provide a waste-tracking form for every load. This form shall include, at a minimum, the name and address of the industrial waste hauler, permit number, truck identification, names and addresses of sources of waste, and volume and characteristics of waste. The form shall identify the type of industry, known or suspected waste constituents, and whether any wastes are RCRA hazardous wastes. No hauled waste from outside the boundaries of the county will be accepted.
(Res. No. 06-1167, 11-15-06)