8-3-10: COMPLIANCE WITH AUTHORITY:

   A.   Unless exception is granted by the approving authority, the public sanitary sewer system shall be used by all persons discharging:

      1.   Wastewater;

      2.   Industrial waste; or

      3.   Polluted liquids.

   B.   Unless authorized by the Texas Water Quality Board, no person may deposit or discharge any waste included in subsection A of this Section on public or private property in or adjacent to any:

      1.   Natural outlet;

      2.   Watercourse;

      3.   Storm sewer; or

      4.   Other area within the jurisdiction of the City.

   C.   The approving authority shall verify, prior to the discharge, that wastes authorized to be discharged will receive suitable treatment within the provisions of laws, regulations, ordinances, rules and orders of Federal, State and local governments. (Ord. 579, 6-7-74)

8-3-11: REQUIREMENTS:

   A.   If discharges or proposed discharges to public sewers may: 1) deleteriously affect wastewater facilities, processes, equipment or receiving waters; 2) create a hazard to life or health; or 3) create a public nuisance, the approving authority shall require:

      1.   Pretreatment to an acceptable condition for discharge to the public sewers;

      2.   Control over the quantities and rates of discharge; and

      3.   Payment to cover the cost of handling and treating the wastes.

   B.   The approving authority is entitled to determine whether a discharge or proposed discharge is included under subsection A of this Section.

   C.   The approving authority shall reject wastes when:

      1.   It determines that a discharge or proposed discharge is included under subsection A of this Section; and

      2.   The discharge does not meet the requirements of subsection A of this Section. (Ord. 579, 6-7-74)

8-3-12: REVIEW AND APPROVAL:

   A.   If pretreatment or control is required, the approving authority shall review and approve design and installation equipment and processes.

   B.   The design and installation of equipment and processes must conform to all applicable statutes, codes, ordinances and other laws.

   C.   Any person responsible for discharges requiring pretreatment, flow-equalizing or other facilities shall provide and maintain the facilities in effective operating condition at his own expense. (Ord. 579, 6-7-74)

8-3-13: TRAP REQUIREMENTS:

   A.   Discharges requiring a trap include:

      1.   Grease or waste containing grease in excessive amounts;

      2.   Oil;

      3.   Sand;

      4.   Flammable wastes; and

      5.   Other harmful ingredients.

   B.   Any person responsible for discharges requiring a trap shall, at his own expense and as required by the approving authority:

      1.   Provide equipment and facilities of a type and capacity approved by the approving authority;

      2.   Locate the trap in a manner that provides ready and easy accessibility for cleaning and inspection; and

      3.   Maintain the trap in effective operating condition. (Ord. 579, 6-7-74)

8-3-14: BUILDING SEWER REQUIREMENTS:

Any person responsible for discharges through a building sewer carrying industrial wastes shall, at his own expense and as required by the approving authority:

   A.   Install an accessible and safely located control manhole;

   B.   Install meters and other appurtenances to facilitate observation sampling and measurement of the waste; and

   C.   Maintain the equipment and facilities. (Ord. 579, 6-7-74)

8-3-15: SAMPLING AND TESTING:

   A.   Sampling: Sampling shall be conducted according to customarily accepted methods, reflecting the effect of constituents upon the sewage works and determining the existence of hazards to health, life, limb and property. (NOTE: The particular analyses involved will determine whether a 24-hour composite sample from all outfalls of a premises is appropriate or whether a grab sample or samples should be taken. Normally, but not always, BOD and suspended solids analyses are obtained from 24-hour composite of all outfalls. Where applicable, 16-hour, 8-hour or some other period may be required. Periodic grab samples are used to determine pH.)

   B.   Examination and Analyses: Examination and analyses of the characteristics of waters and wastes required by this Chapter shall be:

      1.   Conducted in accordance with the latest edition of "Standard Methods"; and

      2.   Determined from suitable samples taken at the control manhole provided or other control point authorized by the approving authority.

   C.   Composite Sampling: BOD and suspended solids shall be determined from composite sampling.

   D.   Laboratory: The City may select an independent firm or laboratory to determine flow, BOD and suspended solids.

   E.   Time of Sampling: The City is entitled to select the time of sampling at its sole discretion, so long as at least annual samples are taken. (Ord. 579, 6-7-74)

8-3-16: INDUSTRIAL WASTE DISCHARGE AGREEMENT AND PAYMENT OF COSTS:

   A.   When discharges of industrial waste are approved by the approving authority, the City or its authorized representatives shall enter into an agreement or arrangement providing:

      1.   Terms of acceptance by the City; and

      2.   Payment by the persons making the discharge.

   B.   Persons making discharges of industrial waste shall pay a charge to cover the cost of collection and treatment as provided by the LRGVPCA.

   C.   If the volume or character of the waste to be treated by the City does not cause overloading of the sewerage collection of the City and treatment or disposal facilities of the LRGVPCA, then prior to approval, the City, LRGVPCA and the person making the discharge shall enter into an agreement which provides that the discharger pay an industrial waste charge to be determined from the schedule of charges.

   D.   If the volume or character of the waste to be treated by the LRGVPCA requires that the wastewater collection system of the City or treatment or other disposal facilities of the LRGVPCA be improved, expanded or enlarged in order to treat the waste, then prior to the approval, the City, LRGVPCA and the person making the discharge shall enter into an agreement which provides that the discharger pay in full all added costs the City may incur due to acceptance of the waste.

   E.   The agreement entered into pursuant to subsection C of this Section shall include but not be limited to:

      1.   Amortization of all capital outlay for collecting the waste, including new capital outlay for and the proportionate part of the value of the existing system used in handling waste;

      2.   Operation and maintenance costs, including salaries and wages, power costs, costs of chemicals and supplies, proper allowances for maintenance, depreciation, overhead and office expense. (Ord. 592, 9-16-75)