Ord 2003-050 - Laserfiche WebLink

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(a) When the public water supply is used exclusively for industrial waste, the water consumption during the previous month, as determined from the meter records of the finance department, shall be the valid basis for computing sewage flow, unless actual sewage flow is measured by a recording meter of a type approved by the control authority. The owner shall maintain the device in proper condition to accurately measure the flow. (b) When all or part of the water consumed is obtained from private supplies, wells, etc., the person shall provide and maintain at all times suitable metering and recording devices, approved by the control authority, in connection with each or all sources of private water, unless the control manhole provided is equipped with an approved volume measur'mg and recording device. The volume of private water consumed during the previous month, together with the consumption of public water, as determined from the records of the utilities department, shall be the basis for computing the sewage volume, or the owner may be required to install, at its expense, an approved metering device to accurately measure flow as mentioned in subsection (a) of this section. (c) When water is contained in a product or is evaporated or is discharged as unpolluted waste in an nncontaminated condition to surface drainage, an application may be made for a reduction in the volume of waste discharged to the public sewer, provided supporting data, satisfactory to the control authority, is furnished. (d) The data mentioned in subsection (c) of this section shall include a flow diagram, destination of the water supply and/or wastes, supported by submetering data installed on the process piping at the expense of the private owner. Sec. 86.132. Sampling, testing, and inspections. (a) The city shall randomly sample and analyze (at least once a yem') the effluent from industrial users and conduct surveillance activities in order to identify, independent of information supplied by industrial users, occasional and noncompliance with pretreatment standards (40 CFR 403.8(f)(2)(v)). (b) All sampling and analyses under this division shall be performed in accordance with procedures established by the EPA administrator pursuant to section 304(h) of the Act, as amended and 40 CFR 136, as amended. (c) Analysis shall be performed on suitable samples taken at the inspection port provided or other control point authorized by the control authority. (d) To detect unauthorized or accidental discharges, grab samples or time composites may be used. (e) The city may select an independent finn or laboratory to determine flow, BOD, TSS and other wastewater constituents. Chain of custody procedures shall be followed. 29