(A) Sampling.
(1) Compliance determinations with respect to §§ 51.36 and 51.37 prohibitions and limitations, may be made on the basis of either instantaneous grab samples or composite samples of wastewater. Composite samples may be taken over a 24-hour period, or over a longer or shorter time span, as determined necessary by the Superintendent to meet the needs of specific circumstances.
(2) Industrial wastes discharged into the system shall be subject to periodic inspection for a determination of character and concentration of said wastes. The determination shall be made as often as may be deemed necessary by the Superintendent but in no case less than two 24-hour composite samples per month. The owner shall be responsible for the collection and testing of the aforementioned samples.
(3) Samples shall be collected in such a manner as to be representative of the composition of the wastes. The sampling shall be accomplished by the use of automatic sampling equipment capable of collecting composite samples. Access to sampling locations shall be granted to the Superintendent or his designee at all times. Every care shall be exercised in the collection of samples to insure their preservation in a state comparable to that at the time the same was taken.
(B) Analysis.
(1) Laboratory analysis of industrial wastewater samples shall be performed in accordance with the current edition of Standard Methods or the Methods for Chemical Analysis of Water and Waste published by the U.S. EPA. Analysis of those pollutants not covered by these publications shall be performed in accordance with procedures established by the State EPA. However, alternative methods for certain analyses of industrial wastes may be used subject to mutual agreement between the Superintendent and the discharge unit. Determination of the character and concentration of the industrial wastes shall be made by the discharge unit, or its qualified agent as approved by the Superintendent. The results of the analyses shall be reported to the village on a monthly basis on forms provided by the village. The village shall make its own analyses on the wastes and these determinations shall be binding as a basis for charges, except under circumstances in the following paragraph. Testing standards shall comply with federal law 40 CFR 136.
(2) In case the analyses performed by the discharge unit and the village result in substantially different values, an effort shall be made by the discharge unit to collect samples at the same time the village collects its samples. The results of the analyses on the samples collected by the village and the discharge unit shall be compared using the same testing procedures as outlined in the latest edition of Standard Methods and the differences negotiated.
(Ord. 1498, passed 7-21-86; Am. Ord. 2583, passed 6-15-09) Penalty, see § 51.99