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Show NEW YORK HARBOR (TRI-STATE) COMPACT 227 (2) Class B, in which the designated water areas are not expected to be used primarily for recreational purposes, shellfish culture, or the development of fish life. article vn 1. It is agreed between the signatory States that no sewage or other polluting matters shall be discharged or permitted to flow into, or be placed in, or permitted to fall or move into the tidal waters of the district, except under the following conditions and restrictions: (1) All sewage discharged or permitted to flow into class A waters of the district shall first have been so treated as- (a) to remove all floating solids and at least 60 per centum of suspended solids; and (b) to effect a reduction of organisms of the B. coli group (intestinal bacilli) so that the probable number of such orga- nisms shall not exceed one per cubic centimeter in more than 50 per centum of the samples of sewage effluent tested by the par- tially confirmed test: Provided, however, That in the case of dis- charge into waters used primarily for bathing, this bacterial standard need not be required except during the bathing season; and (c) to effect a reduction in the oxygen demand of the sewage effluent sufficient to maintain an average dissolved-oxygen content in the tidal waters of the district and in the general vicinity of the point of discharge of the sewage into those waters, at a depth of about five feet below the surface, of not less than 50 per centum saturation during any week of the year. (2) All sewage discharged or permitted to flow into class B waters of the district shall first have been so treated as- (a) to remove all floating solids and at least 10 per centum of the suspended solids, or such additional percentage as may by reason of local conditions be necessary to avoid the formation of sludge deposits in the class B waters of the district; and (b) to effect a reduction in the oxygen demand of the sewage effluent sufficient to maintain an average dissolved-oxygen con- tent in the tidal waters of the district and in the general vicinity of the point of discharge of the sewage into those waters, at a depth of about five feet below the surface, of not less than 30 per centum saturation during any week of the year. ARTICLE VIII 1. Each of the signatory States agrees that, insofar as waters within its jurisdiction may flow into any portion of the district, all sewage discharged or permitted to flow into any stream tributary to the tidal waters of the district shall be treated to that extent, if any, which may be necessary to maintain such tributary immediately above its confluence with the tidal waters of the district in a sanitary con- dition at least equal to the classification requirements determined by the commission for the tidal waters of the district into which it dis- charges. The waters of the Hudson River, immediately above the mouth of Sparkhill Creek on the westerly side and the New York- New Jersey boundary extended on the easterly side of the river, shall be maintained in a sanitary condition at ebb tide at least equal to |