All measurements, tests and analyses of the characteristics of waters and wastes, to which reference is made in the current edition of "Standard Methods for the Examination of Water and Wastewater," published by the American Public Health Association, shall be determined at the control manholes provided or upon suitable samples taken at such control manholes. If no special manhole has been required, the control manhole shall be considered to be the downstream manhole in the public sewer nearest to the point at which the building sewer is connected. Sampling shall be carried out by customarily accepted methods to reflect the effect of constituents upon the sewerage facilities and to determine the existence of hazards to life, health and property. The particular application involved will determine whether a twenty-four hour composite of the discharge is appropriate or whether a grab sample should be taken. In most cases, biochemical oxygen demand and suspended solids analyses are obtained from twenty-four hour composites of the discharge and pH is determined from periodic grab samples.
A monthly report of the quantity and characteristics of any industrial waste discharged into the sanitary sewer shall be presented to the Service Director by the owner not later than the fifteenth day of the month following the reporting period.
(Ord. 80-8. Passed 6-10-80.)
(Ord. 80-8. Passed 6-10-80.)