(a) No person(s) shall discharge or cause to be discharged any of the following described waters or wastes to any public sewers or treatment works:
(1) Any gasoline, benzine, naphtha, fuel oil, or other flammable or explosive liquid, solid or gas.
(2) Any waters or wastes having a pH lower than 6.0 higher than 9.0 or having any other corrosive property capable of causing damage or hazard to structures, equipment and personnel of the wastewater works.
(3) Solid or viscous substances in quantities or of such size capable of causing obstruction to the flow in sewers or other interferences with the proper operation of the wastewater facilities such as, but not limited to, ashes, bones, cinder, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastic, wood, unground garbage, whole blood, paunch manure, hair and fleshings, entrails, and paper dishes, cups, milk containers, etc. either whole or ground by garbage grinders.
(4) The following described substances, materials, waters or waste shall be limited in discharge to municipal systems to concentrations or quantities which will not harm either the sewers, wastewater treatment process or equipment, will not have an adverse effect on the receiving stream, or will not otherwise endanger lives, limb, public property, or constitute a nuisance. The Administrative Director may set limitations lower than the limitations established in the regulations below if in his opinion such more severe limitations are necessary to meet the above objectives. Deliberate dilution with unpolluted water to meet the concentrations established in the regulations below shall not be acceptable. In forming his opinion as to the acceptability, the Administrative Director will give consideration to such facts as the quantity of subject waste in relation to flows and velocities in the sewers, materials of construction of the wastewater treatment plant, degree of treatability of the waste in the wastewater treatment plant, and other pertinent factors. The limitations or restrictions on materials or characteristics of waste or wastewater discharged to the sanitary sewers which shall not be violated without approval of the Administrative Director are as follows:
A. Wastewater having a temperature higher than l00 degrees Fahrenheit.
B. Wastewater containing more than fifty milligrams per liter of petroleum oil, nonbiodegradable cutting oils, products of mineral oil origin, floatable oils, fat, wax, or grease. Grease, oil, and sand interceptors shall be provided when, in the opinion of the Administrative Director, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts, flammable wastes, sand, or other harmful ingredients; except that such interceptors shall not be required for private living quarters or dwelling units. All interceptors shall be of a type and capacity approved by the Administrative Director and shall be located so as to be readily accessible for cleaning and inspection.
Grease and oil interceptors shall be constructed of impervious materials capable of withstanding abrupt and extreme changes in temperature. They shall be of sub stantial construction, watertight and equipped with easily removable covers which, when bolted in place, shall be gas tight and water tight. All grease, oil, and sand interceptors shall be maintained by the owner, at his expense, in continuously efficient operation at all times.
C. Any garbage that has not been properly shredded. Garbage grinders may be connected to sanitary sewers from homes, hotels, institutions, restaurants, hospitals, catering establishments or similar places where garbage originates from the preparation of food in kitchens for the purpose of consumption on the premises or when served by caterers.
D. Any water or wastes containing solids, liquids or gasses in sufficient quantity either singly or by interaction with other wastes to injure or interfere with any waste water treatment process or which constitute a hazard to humans, animals, or waters of the wastewater treatment plant, including, but not limited to, as shown below. These concentrations shall not be exceeded in industrial wastes discharged to the public sewers.
These maximum concentrations may be changed as necessary by the Administrative Director or state regulatory agencies based on the new information concerning inhibitory substances or to protect treatment plant processes. Industrial dischargers covered by federal pretreatment requirements shall meet those limitations specified under the effluent guidelines published under Section 304(b) and 307 (b) of the Federal Act or the below concentrations, whichever is more stringent.
ITEM
Mg/l
Zinc
1.0
Cyanide
0.5
Copper
1.0
Nickel
2.0
Chromium
Hexavalent
1.0
Trivalent
1.5
Phenols
0.2
Lead
0.5
Cadmium
0.2
Mercury
0.01
Silver
0.2
Iron
15.0
Arsenic
4.0
Boron
10.0
Sulfates
500.0
Ammonia
25.0
Chlorides
50.0
COD3
500.0
Alkalinity
100.0
Sulfide
200.0
Sodium Chloride
50,000.0
Chloroform
10.0
Chlorinated Organics
20.0
Cations of:
Sodium
8,000.0
Calcium
12,000.0
Potassium
8,000.0
Magnesium
2,000.0
If the concentration of any industrial waste exceeds the limits stipulated above, as received at the sewage treatment plant, the largest contributor shall reduce, by acceptable pretreatment and flow regulation or both, the amounts wasted to the public sewer until the aggregate of any such waste concentration at the treatment works shall not exceed the above prescribed limits.
The admission into the public sewers of any waters or wastes having a five-day chemical biological oxygen demand greater than 200 milligrams per liter by weight or containing more than 200 milligrams per liter by weight of suspended solids or containing any quantity of substances having the characteristics described in the above divisions, or having an average daily flow greater than ten percent (10%) of the average daily sewage flow of the Municipality, shall be subject to the review and approval of the Administrative Director. The owner shall provide, at his expense, such preliminary treatment as may be necessary to reduce the chemical biological oxygen demand to 200 milligrams per liter by weight, or reduce objectionable characteristics of constituents to within the maximum limits provided above, or control the quantities and rates of discharge of such waters and waste. Plans and specifications and any other pertinent information relating to proposed treatment facilities shall be submitted for approval by the Administrative Director and the Ohio Environmental Protection Agency; and no construction of such facilities shall be commenced until this approval is obtained in writing. Where any treatment facilities are provided for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation, by the owner of such treatment facilities at his expense.
E. Any waters or wastes containing odor-producing substances exceeding limits which may be established by the Administrative Director or any local or state regulatory agencies.
F. Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits in compliance with applicable state or federal regulations.
G. Quantities of flow, concentrations, or both which constitute a “slug” as defined herein.
H. Waters or wastes containing substances which are not amenable to treatment or reduction by the wastewater treatment processes employed, or are amenable only to such degree that the wastewater treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters; or substances that would result in a violation of the NPDES permit.
I. Any water or wastes which by interaction with other water or wastes in the public sewer system, release obnoxious gases, form suspended solids which interfere with the collection system, or create a condition deleterious to structures and treatment processes.
J. Any wastes with objectionable color not removable by the treatment process.
K. Any (unpolluted) surface water, groundwater, roof runoff, stormwater, subsurface drainage, uncontaminated cooling water, or unpolluted industrial process waters to any sanitary sewer. Any existing roof drain connections to sanitary or combined sewers shall be connected into an available storm sewer or shall be disconnected above ground in an appropriate manner approved by the Municipality. Discharges from roof drains emptying onto the ground surface shall be at least three feet from adjacent property lines and shall in no way be directed to flood or otherwise cause damage to adjoining property. The owner of any building(s) situated within the Municipality is required at his expense to disconnect all existing roof drains from sanitary and combined sewers in accordance with the provisions of this section within 180 days after the date of official notice to do so. Discharge units connecting to a Municipality sanitary sewer shall be free of all stormwater. It is prohibited that any new construction of discharge units shall have any stormwater connections of roof drains; footer and foundation tiles or any other connection to a sanitary sewer. The Municipality retains the right to prohibit new taps to the system if said tap would cause the capacity of the system to be exceeded.
(b) All testing to identify any of the above mentioned pollutants, waters or wastes shall be in accordance with the latest edition of "Standard Methods for the Examination of Water and Wastewater".
(1980 Code 50.16)