Any wastewater that contains characteristics or exceeds a limitation listed in this section, shall not be discharged into the city's sewer collection or treatment system:
(A) Any liquid or vapor having a temperature higher than 150 F at the point of discharge, or 104 F at the treatment plant headworks.
(B) Any water or waste that may contain more than 25 milligrams per liter by weight, including: fat, mineral, organic oil, grease, or any waste that may form persistent oil emulsions.
(C) Any gasoline, benzene, naptha, fuel oil, or other flammable or explosive liquid, solid or gas.
(1) Waste streams with a closed cup flashpoint of less than 140 F (or 60 C), using the test methods specified in 40 C.F.R. pt. 261.61.
(2) Pollutants that exceed 10% of the lower explosive limit at any point within the POTW for any single reading, or more than 5% for any two consecutive readings.
(D) (1) Any garbage that has not been properly shredded.
(2) Any ashes, cinder, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastic, wood, paunch manure, grits such as brick, cement, stone carbid, or any other solid or viscous substance capable of causing obstruction to the flow in sewers, or other interference with the proper operation of wastewater treatment facilities.
(E) Any waters or wastes having a pH lower than 5.5 or higher than 9, or having other corrosive property capable of causing damage or hazard to structures, equipment and personnel of wastewater treatment facilities.
(F) Any pollutant, including oxygen-demanding pollutants (BOD, etc.) released in a discharge at a flow rate and/or concentration that, either singly or by interaction with other pollutants, will cause interference with the POTW.
(G) Any water or wastes containing a toxic or poisonous substance in sufficient quantity to injure or interfere with any wastewater treatment process, constitute a hazard to humans or animals, or create any hazard in the receiving waters of the wastewater treatment facilities. This includes noxious or malodorous liquids, solids or gases that, either singly or by interaction with other wastes:
(1) Are sufficient to create a public nuisance or a hazard to life; or
(2) Are sufficient to prevent entry into the sewers for maintenance and repair; or
(3) May result In the presence of toxic gases, vapors or fumes within the POTW in a quantity that may cause acute worker health and safety problems; or
(4) Are sufficient to cause the effluent (alone or in conjunction with other sources) to fail a toxicity test.
(H) Any waters or wastes containing suspended solids of a character or quantity that requires unusual attention or expense for their handling in the wastewater treatment facilities.
(I) Any noxious or malodorous gas or substance capable of creating a public nuisance.
(J) Any wastewater, pollutants or septage trucked or hauled at discharge points that have not been designated and permitted by the Department of Public Works.
(K) Any waste or water containing metals, such as lead, mercury, chromium and cadmium, that cannot be destroyed or broken down through treatment.
(L) Any waste or water containing toxic organic chemicals, such as solvents, pesticides, dioxins and polychlorinated biphenyl chemicals (PCBs), that cause interference or pass-through.
(M) Wastewater imparting color that cannot be removed by the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions, which consequently impart color and/or unsettleable solids to the treatment plant's effluent.
(N) Wastewater containing any radioactive wastes or isotopes, except in compliance with applicable state or federal regulations.
(O) Detergents, surface-active agents or other substances that may cause excessive foaming in the POTW.
(P) Pollutants that will cause excessive corrosive structural damage to the POTW beyond that which is normally associated with the treatment of wastewater.
(Q) Any of the following prohibited substances:
(1) BHC-Alpha.
(2) BHC-Beta.
(3) BHC-Gamma (Lindane).
(4) Chrysene.
(5) Heptachlor Epoxide.
(6) Polychlorinated Biphenyl Compounds (PCBs).
(7) Phenanthrene.
(R) More than the maximum allowable daily discharge limits of the following substances:
Pollutant | Mass Concentration | Sampling Method |
Arsenic
|
100 ug/l
|
Composite
|
Barium
|
10 mg/l
|
Composite
|
Benzene
|
130 ug/l
|
Grab
|
Boron
|
5000 ug/l
|
Composite
|
Cadmium
|
47 ug/l
|
Composite
|
Chlorine (total)
|
10 mg/l
|
Grab
|
Chloroform
|
420 ug/l
|
Grab
|
Chromium
|
1200 ug/l
|
Composite
|
Copper
|
1200 ug/l
|
Composite
|
Cyanide
|
600 ug/I
|
Grab
|
Cyanide (amenable to chlorination)
|
200 ug/I
|
Grab
|
Lead
|
500 ug/l
|
Composite
|
Manganese
|
83 mg/l
|
Composite
|
Mercury
|
4.6 ug/l
|
Composite
|
Methylene Chloride
|
4200 ug/I
|
Composite
|
Nickel
|
3980 ug/l
|
Composite
|
Oil and Grease (TPH)
|
100 mg/I
|
Grab
|
Phenols
|
0.05 mg/I
|
Grab
|
Selenium
|
100 ug/l
|
Composite
|
Silver
|
500 ug/l
|
Composite
|
Sulfides
|
10.0 mg/I
|
Grab
|
Sulfides (dissolved)
|
500 ug/I
|
Grab
|
Sulfides (total)
|
2.0 mg/l
|
Composite
|
Tetrachloroethylene
|
530 ug/l
|
Grab
|
Trichloroethylene
|
700 ug/l
|
Grab
|
Zinc
|
5400 ug/I
|
Composite
|
(S) Based on fume toxicity, more than the discharge limits for the following substances (all grab samples):
Pollutant | Mass Concentration n (mg/l) |
1,1,1-Trichloroethane | 1.55 |
1,1-Dichloroethane | 4.58 |
1,2,4-Trichlorobenzene | 0.43 |
1,2-Dichlorobenzene | 3.74 |
1,2-Dichloropropene | 3.65 |
1,3-Dichloropropene | 0.09 |
1,4-Dichlorobenzene | 3.54 |
Actrilonitrile | 1.24 |
Aroclor 1242 | 0.01 |
Aroclor 1254 | 0.005 |
Benzene | 0.13 |
Bromomethane | 0.002 |
Carbon Disulfide | 0.06 |
Carbon Tetrachloride | 0.03 |
Chlorobenzene | 2.35 |
Chloroethane | 0.42 |
Chloroform | 0.42 |
Chloromethane | 0.007 |
Dichlorodifluoromethane | 0.04 |
Ethyl Benzene | 1.59 |
Ethylene dichloride | 1.05 |
Heptachlor | 0.003 |
Hexachloro-1,3-butadiene | 0.0002 |
Hexachloroethanle | 0.96 |
Methyl ethyl ketone (2-butanone) | 249 |
Methylene chloride | 4.15 |
Tetrachloroethylene | 0.53 |
Toluene | 1.35 |
Trans-1,2-Dichloroethylene | 0.28 |
Trichloroethylene | 0.71 |
Trichlorofluoromethane | 1.22 |
Vinyl chloride | 0.003 |
Vinylidene chloride | 0.003 |
(T) Based on nitrification inhibition, the following substances shall not exceed the discharge limits below from a composite sample:
*ND= Not detectable
Pollutant | Mass* Concentration n (mg/l) |
0-Cresol | .12 |
1-Naphthylamine | 45 |
2,2'-Bipyridine | 23 |
2,4-Dinitrophenol | ND |
8-Hydroxyquinoline | 7.5 |
Acetone | 220 |
Allyl alcohol | 1.9 |
Allyl chloride | 18 |
Allyl isothicyanate | ND |
Aniline | ND |
Benzidine diHCI | 12 |
Benzocaine | ND |
Benzothiazole disulfide | .38 |
Benzylamine | ND |
Carbon disulfideCarbon disulfide | .35 |
Chloroform | .18 |
Diallyl ether | 10 |
Dicyandiamide | 25 |
Diguanide | 5 |
Dimethylgloxime | ND |
Dithiooximide | ND |
Dodecylamine | ND |
Ethanol | 240 |
Ethylenediamine | 41 |
Guanidine carbonate | .16 |
Hexamethylene diamine | 20 |
Hydazine | 5.8 |
Mercaptobenzothiazole | .03 |
Methyl isothiocyanate | ND |
Methyl thiuronium sulfate | .06 |
Methylamine hydrochloride | 155 |
Monoethanolamine | ND |
Napthylethylenediamine diHCl | 29 |
Ninhydrin | 31 |
Nitrapyrin | ND |
n-Methylaniline | 71 |
O-ethyl potassium carbonodithioate | ND |
p-Aminopropiophenone | 22 |
Phenol | .05 |
p-Nitroaniline | 46 |
p-Nitrobenzaldehyde | 29 |
Potassium thiiocyanate | 30 |
p-Phenylazoaniline | ND |
Skatol | .07 |
Sodium dimethyl dithiocarbamate | ND |
Sodium methyl dithicarbamate | 1.3 |
Tannic Acid | ND |
Tetramethyl thiuram disulfide | 3.0 |
Thioacetamide | ND |
Thiosemicarbazide | ND |
Thiourea | ND |
Triethylamine | ND |
Trihalomethyl-1,3,5-triazine | ND |
Trimethylamine | 11.8 |
(U) Water or wastes that exceed the categorical pretreatment limits listed in 40 C.F.R. Ch. 1, Subch. N, pt. 405-471.
(V) Biochemical Oxygen Demand greater than 300 mg/I and/or Total Suspended Solids greater than 350 mg/l by weight, unless approved by the Public Works Department through an industrial wastewater discharge permit.
(W) (1) Inflows or any rainwater, runoff, groundwater, street drainage, roof drainage, yard drainage, water from fountains, ponds, pools, and lawn sprays are not permitted to be discharged with the POTW.
(2) Any single-pass cooling or heating water, any blow-down or bleed water from HVAC, which causes problems with hydraulic loading are not permitted.
(X) An increase in process water or any attempt to dilute a discharge, as a partial or complete substitute for adequate treatment, to achieve compliance with a discharge limit, unless expressly authorized by an applicable pretreatment standard or requirement.
(Y) Any item containing any combined quantity of substances having any characteristics described in this section.
(Z) Healthcare-related waste that shall not be discharged to the sewer system by any means:
(1) Any potential liquid wastes generated in the rooms of patients who are isolated because of a suspected or diagnosed communicable disease;
(2) Recognizable portions of the human anatomy;
(3) Equipment, instruments, utensils and other materials of a disposable nature that may harbor or transmit pathogenic organisms, and that are used in the rooms of patients with a suspected or diagnosed communicable disease, which by its nature requires their isolation by public health agencies;
(4) Wastes excluded by the other provisions of this code, state laws and or federal regulations.
(AA) Recreational vehicle wastewater shall be tested and treated as necessary to meet the requirements of this section.
(BB) Future revisions in state or federal law regarding the operation and protection of POTWs that may also effect the provisions of § 50.16 shall supersede any requirements of this section, and will become enforceable under the provisions of this code.
('76 Code, Art. 11-6) (Ord. 189, passed 6-8-72; Am. Ord. 1152, passed 11-14-02) Penalty, see §50.99