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<br />f. Radioactive wastes or isotypes of such half-life or <br /> <br />concentration that they are in non-compliance with <br /> <br />regulations issued by the appropriate authority having <br /> <br />control over their use or which have caused or may <br /> <br />cause damage or hazards to the treatment works or personnel <br /> <br />operating it. <br /> <br /> <br />Q Any water or wastes having a pH in excess of 9.5. <br /> <br /> <br />h. Materials which exert or cause: <br /> <br />(1) Unusual concentration of suspended solids (such as but <br /> <br />not limited to, Fullers earth, lime slurries and lime <br /> <br />residues) or of dissolved solids (such as, but not <br /> <br />limited to, sodium chloride and sodium sulfate). <br /> <br />(2) Excessive discoloration (such as, but not limited to, <br /> <br />dye wastes and vegetable tanning solutions). <br /> <br />(3) Unusual BOD, chemical oxygen demand, or chlorine <br /> <br />requirements in such quantities as to constitute <br /> <br />a significant load on the wastewater treatment works. <br /> <br />(4) Unusual volume of flow' or concentration of wastes <br /> <br />constituting a slug. <br /> <br />(5) Water or water containing substances which are not <br /> <br />amenable to treatment or reduction by the sewage <br /> <br />treatment processes employed, or are amenable to <br /> <br />treatment only to such degree that the sewage treatment <br /> <br />plant effluent cannot meet the requirements of the NPDES <br /> <br />Permit or requirements of other governmedtal agencies <br /> <br />having jurisdiction over discharge from the sewage <br /> <br />treatment plant. <br /> <br />-7- <br />