OCR Text |
Show 174 INTERSTATE COMPACTS luting matter shall first have been so treated as to produce an effluent which will meet the following minimum requirements: "Zone 1. 1. Such effluent shall be free of noticeable floating solids, color, oil, grease, or sleek and practically free of suspended solids. "2. Such effluent shall be sufficiently free of turbidity that it will not cause noticeable turbidity in the water of the Delaware River. "3. Such effluent shall show a reduction of organic substances of at least eighty-five (85) per cent, as measured by the bio-chemical oxygen demand; and furthermore, such effluent in no case shall exceed a bio- chemical oxygen demand of fifty (50) parts per million; and further- more, the discharge of such effluent after dispersion in the water of the river shall not cause a reduction of the dissolved oxygen of such water of more than five (5) per cent. The aforesaid reduction in dissolved oxygen content shall be determined by the average results obtained from dissolved oxygen tests, made upon samples collected on not less than six (6) consecutive days, from points in the river above and below the point or points of effluent discharge. "4. Such effluent shall be of such quality that the most probable number of organisms of the Ooli Aerogenes group shall not exceed one (1) milliliter in more than ten (10) per cent of the samples of sewage effluent, tested by the confirmed test; and provided further, That no single sample shall contain more than one hundred (100) organisms of the Coli Aerogenes group in one (1) milliliter. "5. Such effluent shall be sufficiently free of acids, alkalis and other toxic or deleterious substances that it will not create a menace to the public health through the use of the waters of the Delaware River for public water supplies, for recreation, bathing, agriculture and other purposes, nor be inimical to fish, animal or aquatic life. "6. Such effluent shall be free of offensive odors, and also be free of substances capable of producing offensive tastes or odors in public water supplies derived from the Delaware River at any place below the discharge of such effluent. "Zone 2. 1. Such effluent shall be free of noticeable floating solids, color, oil or grease and practically free of both suspended solids and sleek. "2. Such effluent shall be sufficiently free of turbidity that it will not cause noticeable turbidity in the water of the Delaware River. "3. Such effluent shall show a reduction of organic substance of at least eighty-five (85) per cent, as measured by the bio-chemical oxygen demand; and furthermore, such effluent in no case shall exceed a bio- chemical oxygen demand of one hundred (100) parts per million; and furthermore, the discharge of such effluent, after dispersion in the water of the river, shall not cause a reduction of the dissolved oxygen content of such water of more than ten (10) per cent. The aforesaid reduction in dissolved oxygen content shall be determined by the average results obtained by dissolved oxygen tests made upon sam- ples collected on not less than six (6) consecutive days from points in the river above and below the point or points of effluent discharge. "4. Such effluent shall be of such quality that the most probable number of organisms of the Ooli Aerogenes group shall not exceed one (1) per milliliter in more than twenty-five (25) per cent of the samples of sewage effluent tested by the confirmed test; And provided |