<div class="chunk-title">Sec. 58-81. - General discharge prohibitions.</div>
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            <p class="incr0">
               (a)
               </p>
            		
            <p class="content1">
               No user shall contribute or cause to be contributed, directly or indirectly, any pollutant
               or wastewater which will interfere with the operation or performance of a WWTP. These
               general prohibitions apply to all such users of a WWTP, whether or not the user is
               subject to national categorical pretreatment standards or requirements. A user may
               not contribute the following substances to a WWTP:
               </p>
            		
            <p class="incr1">
               (1)
               </p>
            		
            <p class="content2">
               Any liquids, solids or gases which by reason of their nature or quantity are, or may
               be, sufficient either alone or by interaction with any other substances to cause fire
               or explosion or be injurious in any other way to a WWTP or to the operation of a WWTP.
               At no time shall two successive readings on an explosion hazard meter, at the point
               of discharge into the system or at any point in the system, be more than five percent,
               nor any single reading over ten percent of the lower explosive limit (LEL) of the
               meter. Prohibited materials include, but are not limited to, gasoline, kerosene, naphtha,
               benzene, toluene, xylene, ethers, alcohols, ketones, aldehydes, peroxides, chlorates,
               perchlorates, bromates, carbides, hydrides and sulfides, and other substances which
               the director, the state or EPA has notified the user is a fire hazard or a hazard
               to the system.
               </p>
            		
            <p class="incr1">
               (2)
               </p>
            		
            <p class="content2">
               Solid or viscous substances which may cause obstruction to the flow in a sewer or
               other interference with the operation of a WWTP such as, but not limited to, grease,
               garbage with particles greater than one-half inch in any dimension, animal guts or
               tissues, paunch manure, bones, hair, hides or fleshings, entrails, whole blood, feathers,
               ashes, cinders, sand, spent lime, stone or marble dust, metal, glass, straw, shavings,
               grass clippings, rags, spent grains, spent hops, wastepaper, wood, plastics, gas,
               tar, asphalt residues, residues from refining or processing of fuel or lubricating
               oil, mud or glass grinding or polishing wastes.
               </p>
            		
            <p class="incr1">
               (3)
               </p>
            		
            <p class="content2">
               Any waters or wastes having a stabilized pH lower than 6.0 or higher than 9.0, or
               having other corrosive property capable of causing obstruction, damage or hazard to
               structures, equipment or personnel of the sewage works, except as specifically permitted
               by separate written agreements with the county. Materials subject to this prohibition
               include concentrated chloride and fluoride compounds, and substances which will react
               with water to form acidic products.
               </p>
            		
            <p class="incr1">
               (4)
               </p>
            		
            <p class="content2">
               Any wastewater containing toxic pollutants in sufficient quantity, either singly or
               by interaction with other pollutants, to injure or interfere with any wastewater treatment
               process, constitute a hazard to humans or animals, or create a toxic effect in receiving
               waters of a WWTP.
               </p>
            		
            <p class="incr1">
               (5)
               </p>
            		
            <p class="content2">
               Any noxious or malodorous liquids, gases or solids which either singly or by interaction
               with other wastes are sufficient to prevent entry into the sewers for maintenance
               and repair.
               </p>
            		
            <p class="incr1">
               (6)
               </p>
            		
            <p class="content2">
               Any substance which may cause a WWTP's effluent or any other product of a WWTP such
               as residues, sludges or scums to be unsuitable for reclamation and reuse or to interfere
               with the reclamation process. In no case shall a substance discharged to the WWTP
               cause a WWTP to be in noncompliance with sludge use or disposal criteria, guidelines
               or regulations affecting sludge use or disposal developed pursuant to the Solid Waste
               Disposal Act, or state criteria applicable to the sludge management method being used.
               </p>
            		
            <p class="incr1">
               (7)
               </p>
            		
            <p class="content2">
               Any substance which will cause a WWTP to violate its NPDES and/or state disposal system
               permit or the receiving water quality standards.
               </p>
            		
            <p class="incr1">
               (8)
               </p>
            		
            <p class="content2">
               Any wastewater having objectionable color which is not removable in a WWTP.
               </p>
            		
            <p class="incr1">
               (9)
               </p>
            		
            <p class="content2">
               Any wastewater having a temperature which will inhibit biological activity in a WWTP
               resulting in interference, but in no case wastewater with a temperature at the introduction
               into a WWTP which exceeds 40 degrees Celsius (104 degrees Fahrenheit), unless the
               district receives approval for and sets alternative temperature limits, or a temperature
               at the introduction into the wastewater treatment system which exceeds 65 degrees
               Celsius (150 degrees Fahrenheit).
               </p>
            		
            <p class="incr1">
               (10)
               </p>
            		
            <p class="content2">
               Any pollutant released in an indirect discharge at a flow rate and/or pollutant concentration
               which will cause interference to a WWTP.
               </p>
            		
            <p class="incr1">
               (11)
               </p>
            		
            <p class="content2">
               Any wastewater which causes a hazard to human life or creates a public nuisance.
               </p>
            		
            <p class="incr1">
               (12)
               </p>
            		
            <p class="content2">
               Any water of stormwater origin which increases the hydraulic load on a WWTP by an
               amount measurable by normal methods, or any unpolluted water or wastewater released
               at a rate which will cause surcharging of the sanitary sewer.
               </p>
            		
            <p class="incr1">
               (13)
               </p>
            		
            <p class="content2">
               Any clothing, rags, textile remnants or waste, cloth scraps, except fibers or scrap
               that will pass through a one-fourth-inch mesh screen or its equivalent in screening
               ability.
               </p>
            		
            <p class="incr0">
               (b)
               </p>
            		
            <p class="content1">
               When the director determines that a user is contributing to a WWTP any of the substances
               enumerated in subsection (a) of this section in such amounts as to interfere with
               the operation of a WWTP, the director shall:
               </p>
            		
            <p class="incr1">
               (1)
               </p>
            		
            <p class="content2">
               Advise the user of the impact of the contributions on a WWTP; and
               </p>
            		
            <p class="incr1">
               (2)
               </p>
            		
            <p class="content2">
               Develop effluent limitations for such user to correct the interference with a WWTP.
               </p>
            		
            <p class="incr0">
               (c)
               </p>
            		
            <p class="content1">
               Upon satisfactory presentation to the director of evidence by a user that a variance
               of one or more of the substances enumerated in subsection (a) of this section is warranted,
               the director may, after review of such evidence, permit the user to discharge an effluent
               in quantity or quality not consistent with the limitations set forth in this section.
               Such permission shall be granted by the director only after suitable arrangements
               and fees have been established and set forth in the user's wastewater discharge permit.
               </p>
            		
            <p class="historynote0">
               (Ord. of 6-1-92(2), Â§ 2(1))
               </p></div>