No user shall introduce or cause to be introduced into the POTW(s) any pollutant or wastewater which causes pass through or interference as defined by this division. These general prohibitions and specific discharge prohibitions in section 13-2-132 apply to all users of the POTW(s) whether or not they are subject to categorical pretreatment standards or any other federal, state, or local pretreatment standard or requirements.
(Ordinance 2011-01, sec. 1, adopted 1/11/11)
(a) 
No user, regardless of whether they are subject to categorical pretreatment standards or any other federal, state or local pretreatment standard, shall discharge or cause to be discharged into the POTW(s) the following pollutants, substances, or wastewater:
(1) 
Wastewater containing heat in amounts which will inhibit biological activity at the POTW(s) resulting in interference, but in no case heat in such quantities that the temperature at the introduction to the treatment plant will exceed 104ºF (40ºC).
(2) 
Pollutants which create a fire or explosive hazard in the POTW(s), including, but not limited to, wastestreams with a closed-cup flashpoint of less than 140ºF (60ºC) using the test methods specified in 40 CFR 261.21.
(3) 
Wastewater having a pH of less than 5.5 or more than 10.5, or having any corrosive causing property capable of causing damage or hazards to a structure, equipment or personnel of the POTW(s).
(4) 
Solid or viscous substances in amounts which will cause obstruction of the flow to the POTW(s) resulting in interference.
(5) 
Pollutants, including oxygen-demanding pollutants (BOD, etc.), released in a discharge at a flow rate and/or pollutant concentration which, either alone or by interaction with other pollutants, will cause interference with the POTW(s).
(6) 
Petroleum oil, non-biodegradable cutting oil, or products of mineral oil origin, in amounts that will cause interference or pass through.
(7) 
Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW(s) in a quantity that may cause acute worker health and safety problems.
(8) 
Trucked or hauled wastes and/or pollutants, including hazardous wastes and wastes originating from sand/grit traps, grease traps and septic tanks unless this division is amended to accept nonhazardous trucked wastes.
(9) 
Stormwater, surface water, contaminated groundwater, artesian well water, roof runoff, and subsurface drainage unless specifically authorized by the director.
(10) 
Noxious or malodorous liquids, gases, solids, or other wastewater which, either alone or by interaction with other wastes is capable of causing objectionable odors, hazard to life, or which forms solids in concentrations exceeding limits established or which creates any other condition deleterious to structures or treatment processes; or requires unusual provisions, alterations, or expense to handle, or prevents entry into the sewers for maintenance and repair.
(11) 
Wastewater containing any radioactive wastes or isotopes except in compliance with applicable federal or state regulations.
(12) 
Wastewater which imparts color which cannot be removed by the treatment process, such as, but not limited to, dye wastes and vegetable tanning solutions, which consequently impart color to the treatment plant’s effluent, thereby violating the POTW(s) TPDES permit.
(13) 
Sludges, screenings, solids, suspended solids, slurries, or viscous substances in amounts capable of causing obstructions or interference in the operation of the POTW(s).
(14) 
Wastewater causing, or which could cause, alone or in conjunction with other sources, POTW(s) effluent to fail a toxicity test.
(15) 
Detergents, surface-active agents, or other substances in concentrations that may cause excessive foaming in the POTW(s).
(16) 
Any wastewater having visible oil or grease, oil or grease in sufficient quantities to deposit in the collection system or have other deleterious effects on the treatment process or POTW(s), or which is not amenable to bacterial action.
(b) 
If it is determined that a user is contributing any of the prohibited substances in concentrations which will cause interference and/or pass through or will adversely impact the reuse program, sludge disposal alternatives, or the normal operating procedures of the POTW(s), the director may develop effluent limitations for the user to address the impact of the discharges to the POTW(s) or require the user to discontinue the contribution.
(c) 
Pollutants, substances, or wastewater prohibited by this section shall not be stored or processed in such a manner that they could be discharged to the POTWs.
(Ordinance 2011-01, sec. 1, adopted 1/11/11)
The categorical pretreatment standards found in 40 CFR chapter I, subchapter N, parts 405-471 are hereby incorporated and compliance is required by users.
(1) 
Where a categorical pretreatment standard is expressed in terms of either the mass or the concentration of a pollutant in wastewater, the director may impose equivalent concentration or mass limits in accordance with 40 CFR 403.6(c)(2).
(2) 
When wastewater subject to a categorical pretreatment standard is mixed with wastewater not regulated by the same standard, the director shall impose an alternate limit using the combined wastestream formula in 40 CFR 403.6(e) or require the segregation of categorical and noncategorical wastestreams.
(3) 
A user may obtain a variance from a categorical pretreatment standard if the user can prove, pursuant to the procedural provisions in 40 CFR 403.13, that factors relating to its discharge are fundamentally different from the factors considered by EPA when developing the categorical pretreatment standards.
(4) 
A user may obtain a net gross adjustment to a categorical standard in accordance with 40 CFR 403.15.
(5) 
The more stringent limitation, whether categorical, local, or authority local limit shall be applied.
(Ordinance 2011-01, sec. 1, adopted 1/11/11)
(a) 
The following pollutant limitations other than those specified as authority local limits are established to protect against pass through and interference at the city’s POTW:
(1) 
All significant industrial users and users shall comply with the following instantaneous maximum allowable discharge limits at the point of discharge to the POTW(s) unless otherwise specified by the applicable regulation. These limitations may be applied to other users by the director if necessary to comply with the objectives of section 13-2-101.
Instantaneous maximum and daily maximum allowable discharge limits (mg/l):
Total arsenic: 2.0
Total cadmium: 4.0
Total chromium: 3.0
Total copper: 3.0
Total lead: 2.0
Total mercury: 0.2
Total nickel: 7.0
Total selenium: 1.0
Total silver: 2.0
Total zinc: 4.0
Total cyanide: 2.0
(2) 
The director may impose on any user mass limitations in addition to, or in place of, the instantaneous maximum allowable discharge limit.
(3) 
If it is determined that discharges of oil and grease from a user may be or are adversely impacting the POTW(s), an oil and grease limit or surcharge may be imposed by the director. If adequate sampling facilities for oil and grease are not available, the director may require the user to install the facilities at the user’s expense as specified in section 13-2-301(b).
(4) 
The director may develop best management practices (BMPs) by ordinance or wastewater discharge permit to implement local limits, authority local limits and general prohibitions established in section 13-2-131 and this section.
(b) 
Authority local limits.
As necessary to prevent pass through and/or interference at the Odessa South Regional POTW, the director may also include authority local limits and/or pretreatment requirements as prescribed in the supplemental agreement in the wastewater discharge permit of significant industrial users or other users whose wastewater is treated at the Odessa South Regional POTW operated by Gulf Coast Waste Disposal Authority. Authority local limits and/or pretreatment requirements included in wastewater discharge permits shall be enforced according to the conditions set out in the wastewater discharge permit and the enforcement response plan and guide.
(Ordinance 2011-01, sec. 1, adopted 1/11/11)
The control authority reserves the right to establish, by ordinance or by permit, more stringent standards or requirements on discharges to the POTW(s) in order to accomplish the objectives set forth in section 13-2-101.
(Ordinance 2011-01, sec. 1, adopted 1/11/11)
(a) 
No user shall ever increase the use of potable or process water or in any way attempt to dilute a discharge as a partial or complete substitute for adequate treatment to achieve compliance with a discharge limitation unless expressly authorized by an applicable pretreatment standard or requirement.
(b) 
No dilution or mixing of separate wastestreams will be allowed for a discharge regulated by a categorical pretreatment standard unless the combined wastestream formula is applied or is allowed by the categorical pretreatment standard.
(c) 
The director may impose mass limitations on users who are using dilution to meet applicable pretreatment standards or requirements.
(Ordinance 2011-01, sec. 1, adopted 1/11/11)
It is the responsibility of each user to be knowledgeable of all regulations applicable to the user. Failure of the city to notify an existing or new user of federal, state or local regulations shall not relieve the user of compliance with this division.
(Ordinance 2011-01, sec. 1, adopted 1/11/11)