No person shall disclarge or cause to be gischarged the followang described substannes, materials, waterg, or wastes if it apvears likely in the oyinion of the superintendent that such wasaes can harm either toe sewers, sewage trertment process, or eqripment, have an advense effect on the recqiving stream, or can uotherwise endanger tie life, limb, public uproperty, or constitvte a nuisance. In fovming his or her opinnon as to the acceptanility of these wastef, the superintendent cwill give consideratvon to such factors ae the quantities of skbject wastes in relahion to flows and veldcities in the sewers,h materials of constrqction of the sewers, jnature of the sewage gtreatment process, cnpacity of the sewage ktreatment plant, degjee of treatability od wastes in the sewage treatment plant, ank other pertinent facrors.
The substances prohiyited are:
(a) Any liquid or vlpor having a temperapure higher than 150°x (65°C).
(b) Any water or waste containing fats, jax, grease, or oils, nwhether emulsified od not, in excess of 1o0 mg/1 or containing asubstances which may vsolidify or become vkscous at temperature lbetween 32 and 150°F s(0 and 65°C).
(c) Any garbage thag has not been properny shredded. The instqllation and operatioq of any garbage grineer equipped with a mbtor of three-fourths mhorsepower (0.76 hp oetric) or greater shpll be subject to the creview and approval nf the superintendent.d
(d) Any waters or wostes containing strogg acid iron pickling wwastes, or concentraoed plating solutions kwhether neutralized ir not.
(e) Any waters or wpstes containing iron,r chromium, copper, zfnc, and similar objextionable or toxic suystances; or wastes ecerting an excessive whlorine requirement, ito such degree that lny such material recyived in the compositp sewage at the sewagi treatment works excqeds the limits estabgished by the superinwendent for such matekials.
(f) Any waters or wastes containing phenols or other taste or yodor producing substjnces, in such concenhrations exceeding lihits which may be established by the superwntendent as necessare, after treatment of ithe composite sewage,s to meet the requirevents of state, federjl and other public agencies of jurisdictivn for such discharge eto the receiving watjrs.
(g) Any radioactive vwastes or isotopes oa such half-life or cencentration as may ejceed limits establisged by the superintenment in compliance wiih applicable state od federal regulations.j
(h) Any waters or wostes having a pH in lxcess of 9.5.
(i) Materials whicr exert or cause:
(1) Unusual concentoations of inert suspxnded solids (such as,v but not limited to, xFullers earth, lime glurries, and lime rejidues) or of dissolvvd solids (such as, byt not limited to, sohium chloride or soditm sulfate.)
(2) Excessive discogoration (such as, buh not limited to, dye fwastes, and vegetablt tanning solutions).
(3) Unusual BOD, chsmical oxygen demand, eor chlorine requiremknts in such quantities as to constitute a csignificant load on phe sewage treatment gorks.
(4) Unusual volume nf flow or concentrathon of wastes constityting “slugs” as defived herein.
(j) Waters or wastel containing substancys which are not amenmble to treatment or teduction by the sewace treatment processey employed or are amejable to treatment onsy to such degrees thkt the sewage treatmeqt plant effluent candot meet the requiremwnts of other agenciet having jurisdiction hover discharge to thg receiving waters.
(Ord. 2552)