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<br />. <br /> <br />d. Any water or waste containing strong acid, iron, <br />pickling wastes, or concentrated plating solutions, which <br />is not neutralized and does not meet applicable <br />pretreatment standards. If National Categorical <br />Pretreatment Standards do not apply, the discharge <br />equality shall comply with 40 CFR Part 433 metal finishing <br />standards. <br /> <br />e. Any noxious water or wastes containing phenols or <br />other taste or odor-producing substances which constitute <br />a nuisance or hazard to the structures, equipment or <br />personnel of the waste treatment works, or which interfere <br />with treatment required to meet the requirements of the <br />State and Federal government and any other public agency <br />with proper authority to regulate discharge from the <br />sewage treatment plant. <br /> <br />f. Radioactive wastes or isotopes of such half-life or <br />concentration that they are in noncompliance with <br />regulation issued by the appropriate authority having <br />control over their use or which have caused or may have <br />caused damage or hazard to treatment works or personnel <br />operating it. <br /> <br />. <br /> <br />g. Any water or waste outside the pH range of 5.0 - 10.5 <br />(This range will allow adequate flexibility for industrial <br />users. A higher pH than 8.5 but less than 10.5 will not <br />cause treatment or sewer compatibility'problems and in <br />many cases will allow industrial users to better treat <br />wastewaters containing metals prior to discharge. Keep in <br />mind that potable water supplies often exceed a pH of 8.5) <br /> <br />h. Any non-contact cooling water or unpolluted storm, <br />drainage or groundwater. <br /> <br />i. Any waters or wastes containing the following <br />substances: arsenic, cadmium, copper, cyanide, lead, <br />mercury, nickel, silver, total chromium, zinc or phenolic <br />compounds to a degree that the materials received prevent <br />adequate treatment of the waste. <br /> <br />j. Materials which exert or cause: <br /> <br />i. Unusual concentrations of suspended solids (such <br />as, but not limited to, Fuller's earth, lime slurry <br />and lime residues) or of dissolved solids (such as, <br />but not limited to, sodium chloride and sodium <br />sulfate). <br /> <br />11. Excessive discoloration (such as, but not <br />limited to, dye wastes and vegetable tanning <br />solutions). <br /> <br />. <br /> <br />iii. Unusual BOD, BOD or chlorine requirements in <br />such quantities as to constitute a significant load <br />on the wastewater treatment works. <br />