Water bearing miscellaneous substances in concentrations above the standard set for normal sewage shall not be discharged into the Village of Webster sewerage system before a finding by the Superintendent determines that such concentration will not adversely affect any of the biochemical, chemical or other sewage treatment process, sewage system or receiving waters. The following is a partial list of such substances:
A. 
Antibiotics.
B. 
Elemental biomine, iodine, chlorine or fluorine.
C. 
Creosols or creosotes.
D. 
Phenol and phenol compounds that convert to phenol in the sewerage system.
E. 
Sulfonamides or toxic dyes (organic or mineral).
F. 
Berylium and berylium compounds.
G. 
Mercury and mercury compounds.
H. 
Molybdenum and molybdenum compounds.
I. 
All strong oxidizing agents, such as chromates, dichromates, permanganates, peroxides, etc.
J. 
Any strong reducing agents causing hazardous conditions in the sewage system.
K. 
Chemical compounds producing toxic, flammable or explosive gases, either upon acidification, alkalinization, oxidation or reduction.
L. 
Wastes from industrial processes or hospital procedures containing viable pathogenic organisms.
A. 
With the exception of sewer users covered by Federal Categorical Pretreatment Standards, the concentration in sewage of any of the following toxic substances shall not exceed the twenty-four-hour average or be discharged into the public sewer.
B. 
Sewer users covered by Federal Categorical Pretreatment Standards shall comply with applicable federal standards. For these users, substances not regulated by the Pretreatment Categorical Standard shall not exceed the concentration limits specified below. For substances regulated by Categorical Pretreatment Standards, the determination of concentration shall be at the discharge into the sewer with the dilution attributes to nonprocess flow excluded as determined by the combined waste stream formula (40 CFR 403.6).
C. 
The Village of Webster may, in accordance with Article XIV, revise the following limits or insert additional items when, in the opinion of the Superintendent, the need for a rule change is indicated, or as provided for in § 113-27. The following list contains the permitted toxic substances and levels of concentration:
Substance
24-Hour Average
(mg/l)
30-Day Average
(mg/l)
Arsenic and compounds of arsenic express as arsenic (As)
1.0
0.5
Barium (Ba)
4.0
2.0
Cadmium (Cd)
0.80
0.40
Chromium, total (CN)
1.60
0.80
Cyanide, total (CN)
3.0
1.50
Cyanide, free (CN)
1.0
0.50
Copper (Cu)
1.6
0.80
Iron (Fe)
10.0
5.0
Lead (Pb)
1.6
0.80
Manganese (Mn)
8.0
4.0
Nickel (Ni)
0.4
0.2
Selenium (Se)
4.0
2.0
Soluble silver (as Ag)
2.0
1.0
Zinc (Zn)
4.0
2.0
When findings of the Village of Webster show that the volume of a single toxic industrial waste discharge or the combined toxic industrial waste discharge of a group of industries within a single contributory area is so large as to raise a question of the ultimate concentration of toxic substances entering a sewage treatment plant or in cases where it is not known that the toxic substances in the concentrations involved will be effectively removed by the sewage treatment plant without causing deleterious effects of any kind to the treatment process, the treatment plant sludge or the receiving waters after treatment, the Village of Webster may rule that separate or special concentrations limits shall be used by the contributors in that area. Concentration limits at variance with Federal Categorical Pretreatment Standards will not be granted.
Upon the promulgation of final Federal Categorical Pretreatment Standard for a particular industrial subcategory, the federal standard for sources in that subcategory shall take precedence for and become the limitations of that category of industrial user on the date the federal standard becomes effective until and unless a removal credit is given. In consideration of removal allowance, the revision of any Categorical Pretreatment Standards to reflect treatment plant removal of pollutants shall follow the formal process required under 40 CFR 403.7. The Superintendent shall notify all affected users of the applicable reporting requirements.