§ 51.097 DISCHARGE FEE.

   (A)   Any person discharging septic tank waste or portable toilet waste into the wastewater treatment works shall pay a wastewater disposal charge at the rate as set by resolution.

(Prior Code, § 51.098)

   (B)   Other waste shall be charged at a rate based on the composition of the waste disposal as determined by the Director of Public Works.

§ 51.098 ADDITIONAL REGULATIONS.

   No statement contained in this chapter shall be construed to interfere with any additional requirements that may be imposed by the Environmental Protection Agency, Nebraska Department of Environment and Energy or the Department of Public Works.

(Prior Code, § 51.099) (Ord. 2354, passed 5-1-1974; Ord. 03-39, passed 11-17-2003)

PROHIBITED DISCHARGES

§ 51.110 STORMWATER AND UNPOLLUTED DRAINAGE.

   Stormwater and all other unpolluted drainage shall be discharged into sewers specifically designed and designated as storm sewers or to a natural outlet, in accordance with the City Storm Water Management Plan, NPDES permit, EPA and Nebraska Department of Environment and Energy. No person shall discharge or cause to be discharged, either directly or indirectly, to the sanitary sewer system any surface water, groundwater, roof runoff, subsoil or sub-surface drainage, cooling water or unpolluted industrial process water. Any such connections made either before or after the effective date of these rules and regulations shall be considered illegal and shall be subject to immediate removal by the owner at the owner’s expense. Should the owner of an illegal connection fail to remove it within 90 days after being notified by the Director of Public Works, the Director of Public Works may cause the connection to be removed and the cost billed to the owner of the property served by the illegal connection.

(Prior Code, § 51.110) (Ord. 2535, passed 12-5-1977; Ord. 03-39, passed 11-17-2003) Penalty, see § 51.999

§ 51.111 SANITARY AND OTHER POLLUTED WATERS.

   No person shall discharge or cause to be discharged to any natural outlet or storm sewer any sanitary wastewater or other polluted waters. Effluent from privately-owned individual household disposal devices shall not be discharged to storm sewers.

(Prior Code, § 51.111) Penalty, see § 51.999

§ 51.112 OTHER PROHIBITED DISCHARGES.

   No person shall discharge, or cause to be discharged, to any sanitary sewer, any of the following described substances, water or wastes:

   (A)   Any liquid or vapor having a temperature higher than 65°C (150°F);

   (B)   Wastes containing oil or grease of petroleum origin;

   (C)   Any gasoline, benzene, naphtha, fuel oil, mineral spirits, commercial solvent, motor oil or other flammable or explosive liquid or any other petroleum derivative;

   (D)   Any water or wastes containing dissolved gases (such as hydrogen sulfide, sulfur dioxide, nitrogen oxides and ammonia) in concentrations sufficient to cause poisonous or toxic fumes or wastewater, or a malodorous or harmful condition;

   (E)   Any ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, asphalt materials, cement or concrete, paunch manure, hair and fleshing, entrails, lime slurry, lime residues, beer or distillery spent grains, chemical residues, paint residues, cannery waste, bulk solids or any other solid or viscous substances, in amounts capable of causing obstructions to flow in sewers or interference with the proper operation of the wastewater treatment works;

   (F)   Any waters or wastes having a pH lower than 5 or higher than 9 at any time, or having any other corrosive property capable of causing damage or being a hazard to structures, equipment and personnel of the wastewater treatment works;

   (G)   (1)   Any waters or wastes containing pollutants in the form of compounds or elements, in solution or suspension, in concentrations exceeding the following:

Pollutant	Maximum Concentration in mg/l
Arsenic (As)	0.050
Barium (Ba)	1.000
Cadmium (Cd)	0.100
Chromium (Cr) (total)	3.000
Copper (Cu)	1.000
Cyanides (Cn)	2.000
Lead (Pb)	0.100
Manganese (Mn)	1.000
Mercury (Hg)	0.005
Nickel (Ni)	1.000
Selenium (Se)	0.030
Silver (Ag)	0.100

 

      (2)   The maximum concentrations shown for the above metals may be used as a guide in design and plant control but may be altered by the Director of Public Works in the event of accumulative overload on the water pollution control plant.

   (H)   (1)   Any waters or wastes containing heavy metals and toxic materials in concentrations prohibited by state or federal rules, including but not limited to:

         (a)   Antimony;

         (b)   Beryllium;

         (c)   Bismuth;

         (d)   Boron;

         (e)   Cobalt;

         (f)   Molybdenum;

         (g)   Rhenium;

         (h)   Strontium;

         (i)   Tellurium;

         (j)   Fungicides;

         (k)   Herbicides;

         (l)   Pesticides; and

         (m)   Uranyl ion.

      (2)   Unless the permit required for discharge of industrial wastes specifies conditions of pretreatment, concentrations and volumes.

   (I)   Any noxious or malodorous gas or substance, capable of creating a public nuisance or hazard to life or preventing entry into sewers for their inspection, maintenance and repair;

   (J)   Any waters containing quantities of radium, naturally occurring or artificially produced radioisotopes in excess of presently existing or subsequently accepted limits for drinking water as established by the National Committee on Radiation Protection and Measurement;

   (K)   Any concentrated dye wastes, spent tanning solutions or other wastes which are highly colored, or wastes which are of unusual volume, concentration of solids or composition that may create obstruction to the flow in sewers or interference with the wastewater treatment processes without proper pretreatment and written approval of the Director of Public Works;

   (L)   Waters or wastes containing substances which are not amenable to treatment or reduction by the wastewater treatment processes employed, or are amenable to treatment only to the degree that the wastewater treatment plant effluent cannot meet the requirements of the NPDES permit;

   (M)   Any water or wastes containing more than 2,000 mg/l total solids;

   (N)   Wastes at a flow rate and/or pollutant discharge rate, which is excessive over short periods of time so that there is a treatment process overload and subsequent loss of treatment efficiency; and

   (O)   (1)   Any waters or wastes having any of the following shall be subject to review by the Director of Public Works:

         (a)   A five-day biochemical oxygen demand greater than 250 parts per million by weight;

         (b)   Containing more than 250 parts per million by weight of suspended solids; or

         (c)   Having an average daily flow greater than 2% of the average sewage flow of the city.

      (2)   Where necessary in the opinion of the Director of Public Works, the owner shall provide, at such owner’s expense, such preliminary treatment as may be necessary to:

         (a)   Reduce the biochemical oxygen demand to 250 parts per million by weight;

         (b)   Reduce the suspended solids to 250 parts per million by weight; or

         (c)   Control the quantities and rates of discharge of such waters or wastes.

      (3)   Plans, specifications and any other pertinent information relating to proposed preliminary treatment facilities shall be submitted for approval by the City Engineer or Chief Building and Code Inspector and no construction of such facilities shall be commenced until said approvals are obtained in writing.

(Prior Code, § 51.112) (Ord. 2270, passed 6-17-1972; Ord. 2535, passed 12-5-1977; Ord. 03-39, passed 11-17-2003) Penalty, see § 51.999