(A) The village reserves the right to require any nonresidential user to submit quarterly to the Board of Public affairs on forms provided by the village, a certified statement of the characteristics of its nonresidential wastes discharged in the sewers and treatment works of the village or to any sewers connected to its treatment works. This statement shall be filed with the Board of Public Affairs no later than the tenth day of the month following the quarter for which the report is required.
(B) The waste characteristics to be measured and certified by the user shall be:
(1) BOD in milligrams per liter;
(2) Suspended solids in milligrams per liter; and
(3) Such other constituents of wastewater as directed by the Board of Public Affairs.
(C) Should there be a difference in understanding between the Board of Public Affairs and the user as to the characteristics in this section, the Board of Public Affairs reserves the right to use the Board of Public Affairs results from analyses for purposes of billing. Should submission not be made during the ten-day period, the Board of Public Affairs shall use its results from analyses for purposes of billing.
(D) Whenever required by the Board of Public Affairs, the owner of any property serviced by a building sewer carrying nonresidential wastewater and material shall install a large manhole or sampling chamber in the building sewer in accordance with plans and specifications approved by the Board of Public Affairs and installed and maintained at all times at the user’s expense. There shall be ample room in each sampling chamber to accurately sample and composite samples for analysis. The chamber shall be safely, easily, and independently (of other premises and buildings of user) accessible to authorized representatives of the Board of Public Affairs at all times. Where construction of a sampling chamber is not economically or otherwise feasible, alternate arrangements for sampling may be arranged at the discretion of the Board of Public Affairs.
(E) Each sampling chamber shall contain a parshall flume, weir, or similar device with a recording and totalizing register for measuring liquid quantity; or the metered water supply to the nonresidential user may be used as measure of liquid quantity where it is substantiated by the Board of Public Affairs that the metered water supply and waste quantities are approximately the same or where a measurable adjustment agreed to by the Board of Public Affairs is made in the metered water supply to determine the liquid waste quantity.
(F) Samples shall be taken every hour or half hour, as determined by the Board of Public Affairs, and properly refrigerated and composited in proportion to the flow for a representative 24-hour sample. Such sampling shall be done as prescribed by the Board of Public Affairs to ensure representative quantities for the entire reporting period. Minimum requirements for determination of representative quantities or characteristics shall include reevaluation during each 12-month period. The determination of representative quantities and characteristics shall include not less than seven consecutive calendar days of 24-hour composite samplings taken during periods of normal operation, together with acceptable flow measurements.
(G) The sampling frequency, sampling chamber, metering device, sampling methods, and analyses of samples shall be subject, at any time, to inspection and verification by the Board of Public Affairs.
(H) All measurements, tests, and analyses of the characteristics of waters and wastes to which reference is made in this section shall be determined in accordance with the standard methods specified in § 52.07 or with any other method approved by the Committee.
(I) The Board of Public Affairs may elect, at its option, to have the metering and sample collection done by the nonresidential user personnel and have composite samples delivered to an independent laboratory for analysis. This procedure can also be terminated at any time by the Board of Public Affairs upon reasonable notice.
(Ord. 1983-15, passed 12-5-1983)