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6 Me;AR. 16.014. h1DS L1141TA11011S ON DISCHARUES ATTACHMENT 7 A. Local Limitations 1. No Person, except as authorized pursuant to a compliance dis- chargule in a directlyorPermit, shallcause MDS anyrwaste containing � elctlly. Intogthe or charged,Y. concentrations in excess of the following: , ' Pollutant Limitation (Maximum for any operating day) Cadmium (Cd) 2.0 mg/I 8.0 mg/1 Chromium total (Cr) 6.0 mg/I Copper (Cu) Cyanide total (CN) 4.0 mg/I Lead (Pb) 1.0 mg/I 0.1 mg/I Mercury (Hg) 60 mg/l Nickel (NO Zinc (Zn) 11.0 mg/1 2. No Person shall discharge or cause or allow to be discharged. directly or indirectly, into the MDS any waste containing a pH less than 5.0 units or more than 10.0 units. 3. Notwithstanding the provisions of 16.014A.1 in the event that a discharge of pollutants results in a violation of any requirement of a NPDES Permit for a particular Comm:ssion treatment plant or results in the Sewage Sludge from a particular Commission Ireat- rnent plant exceeding standards or limitations contained in local. stale. or federal law, the Commission shall order all Persons discharging to said treatment plant to reduce the concentration of pollutants to the degree necessary to remedy NPDES Permit violations of to meV1 Sewage Sludge rules and regulations. Upon receipt of said order all Persons discharging pollutants to said treatment plant shall Immedi- ately comply with said order by reducing the concentration of poll- lutants accordingly. This rrovrsion shall be applicable to Industrial Users subject to Pretreatment Standards notwithstanding less Stringent pollutant limitations contained in said Pretreatment Stand- ards or the provisions 01 16.015A.1. 13. Pretreatment T. An Industrial User shall make Industrial Waste acceptable under the limitations established in 16 014A.t, the prohibitions under 16.013, and/or any app`•wcable Pretreatment Standard before dis- charging, directly or indirectly, into the MDS. Any Industrial User required to pretreat industrial Waste shall provide. oPers►te, and maintain such a facility at the Industrial User's expense. Detailed plans showing the Pretreatment facilities shall be submitted to the Commission for review and approval at least sixty (60) days prior to the Initiation of construction. The Chief Administrator shall ap- prove the Industrial User's Pretreatment plans it it appsets that the proposed Pretreatment facility Is capable of meeting all applicable limitations and prohibitions. The Commission's review and ap>roval shall in no way relieve the Industrial User from the responsr'briny of modifying the facility as necessary Io produce an et(luont complying with the provisions of these Rules. Any subsequent modifications In the Pretreatment facilities which will result In a substantial change to discharge #hall be teported to and be approved by the Chief Adminisirator, upon a determination that the moodied facility is capable of meeting all applicable limitations and prohibitions, prior to the modification of the existing facility. S. Residual solids from a Pretreatment facility shall not be disposed, directly of indirectly, into the MDS without prior written approval from the Chief Administrator. The disposal method shall be In accordance with focal, state, and tederal.requiremenls. The Chief Administrator shall be notified in writing within ton (10) days of any substantial changes in such residual solids disposal procedures and/or characteristics.