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dischar�e wastewater containin� in excess of the following: <br /> 0.3 m�/1 arsenic <br /> f o.sl mg/1 cadmium <br /> 7.5 m�/1 chromium <br /> f 1.61 m /��per <br /> f 1•5] m� a� <br /> I 1•6] m /1� <br /> j o.i 1 m�/1 mercury <br /> [ 1.91 m�/l nickel <br /> f 1.81 m�/1 silver <br /> f 3.41 m /1 zinc <br /> (g) Dilution Prohibition. No User shall ever increase the use of process water, or <br /> in any way attempt to dilute a dischar eg as a partial or com�lete substitute for <br /> adequate treatment to achieve compliance with a dischar��e limitation unless <br /> expressly authorized by an applicable Pretreatment Standard or Requirement. <br /> The Director ma�pose mass limitations on Users who are usin� dilution to <br /> meet a�pplicable Pretreatment Standards or Requirements, or in other cases when <br /> the imposition of mass limitations is appropriate. <br /> (h) Right of Revision. The City reserves the right to establish bv ordinance or in <br /> individual wastewater discharge permits, more stringent Standards or <br /> Requirements on dischar�es to the POTW consistent with the purpose of this <br /> Division. <br /> (rl l 7,.I �, T 4 .�.4.� ..L..�11 l�e r:r1o.7 l�� tl�o rli l+l�n�ao�na��nn_oann <br /> auiT <br /> rorttll.`i���n �n .���o n4o r.���st�nr�nrw+�i.� .,�..'.�'n,+.�'........... <br /> °� °� ° � a a...aa...�». .. � <br /> A lr-ni---irr�2`�C �.�-�i�ll l,o_..� 4. ,�� '* nr,r,ro zn�Ll�, 4l, T2�.�.'� .,. ..� <br /> � "c°-crri C-t'�pucn7-uppro v va-n'j'-�i.�. <br /> � • <br /> rl/ +.-. ..4 . 4 n..4�r ..4 ..L..�11 L.o ora +r� mnir�t�in-nnrti�inc�. <br /> i�.0 <br /> i..�an n�. 4i.4i.v.n nr�� rin4o_��nlonr.ir..Y nr�a i on4ir�� <br /> �e}� Equipment Maintenance. When a discharger is required to provide <br /> preliminary treatment, including interceptors or flow equalization facilities, such <br /> equipment shall be maintained by the discharger in satisfactory operating <br /> condition as determined by the Board of Public Works or its designee. <br /> (�� Control Manhole. When required by the Director, the owner of any <br /> property serviced by a building sewer carrying ��� non-residential wastes <br /> shall install a suitable control manhole, together with such necessary meters and <br /> other appurtenances in the building sewer, to facilitate observation, sampling and <br /> measurement of the wastes. Such manhole, when required, shall be accessibly <br /> and safely located, and shall be constructed in accordance with plans approved by <br /> the Director. The manhole shall be installed by the owner at his expense, and <br /> 24 <br />