§ 22-89. Measurements and tests.

(a)

All measurements, tests and analysis of the characteristics of waters and wastes to which reference is made in this article shall be determined in accordance with the latest edition of one of the references following:

(1)

Standard methods for the examination of water and wastewaters, American Public Health Association, New York, New York 10019.

(2)

A.S.T.M. Standards, Part 23, Water; Atmospheric Analysis, 1972, American Society for Testing and Materials, Philadelphia, Pa. 19103.

(3)

Methods for chemical analysis of water and wastes, Environmental Protection Agency, Water Quality Office, Analytical Quality Control Laboratory, 1014 Broad-way, Cincinnati, Ohio 45202.

(b)

For purposes of determining user charges and surcharges, sampling and flow monitoring shall be required and instrumented at the expense of any user subject to industrial cost recovery.

(c)

Sampling of wastewater for determination of its characteristics shall be performed in accordance with one of the following schedules:

(1)

Seven (7) consecutive twenty-four-hour composite samples each thirty-day period, or

(2)

Three (3) consecutive twenty-four-hour composite samples repeated twice during any thirty-day period. Each set of three (3) consecutive composites shall be at periods during the thirty-day time at no closer interval than eleven (11) days from the last twenty-four-hour composite sample to the first twenty-four-hour composite of the second set of three (3).

(d)

Initiation of sampling times and periods will be at the pleasure of the City of Eaton Rapids and can be without prior notification to the discharge.

(e)

Waste characteristics determined in accordance with the schedule shall be used to deter-mine each of the twenty-four-hour period waste characteristics in accord with the flow metered for each of the twenty-four-hour periods. The results of each twenty-four-hour period discharge shall then be averaged to a one-day period, multiplied by thirty (30) days to determine waste discharge for any thirty-day period.

(Ord. No. 2002-7, 9-23-02)