1996-05-06_HYDROLOGY - M1977378 - Laserfiche WebLink

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Part II Page No. 11 Permit No.: CO-0044768 6. Bypass Notification If the permittee knows in advance of the need for a bypass,a notice shall be submitted,at least ten days before the date of the bypass,to the Division. The bypass shall be subject to Division approval and limitations imposed by the Division. Violations of requirements imposed by the Division will constitute a violation of this permit. 7. Upsets a. Effect of an Upset An upset constitutes an affirmative defense to an action brought for noncompliance with permit effluent limitations if the requirements of paragraph(b)of this section are met. No determination made during administrative review of claims that noncompliance was caused by upset,and before an action for noncompliance,is final administrative action subject to judicial:;vicw. b. Conditions Necessary for a Demonstration of Upset A permittee who wishes to establish the affirmative defense of upset shall demonstrate through properly signed contemporaneous operating logs,or other relevant evidence that: (1) An upset occurred and that the permittee can identify the specific cause(s)of the upset;and (2) The permitted facility was at the time being properly operated and maintained;and (3) The permittee submitted proper notice of the upset as required in Part II.A.4.of this permit(24-hour notice);and (4) The permittee complied with any remedial measure necessary to minimize or prevent any discharge or sludge use or disposal in violation of this permit which has a reason able likelihood of adversely affecting human health or the environment. In addition to the demonstration required above,a permittee who wishes to establish the affirmative defense of upset for a violation of effluent limitations based upon water quality standards shall also demonstrate through monitoring, modeling or other methods that the relevant standards were achieved in the receiving water. c. Burden of Proof In any enforcement proceeding the permittee seeking to establish the occurrence of an upset has the burden of proof. 8. Discharge Point Any discharge to the waters of the State from a point source other than specifically authorized by this permit is prohibited. 9. Proper Operation and Maintenance The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control(and related appurtenances)which are installed or used by the permittee as necessary to achieve compliance with the conditions of this permit. Proper operation and maintenance includes effective performance and adequate laboratory and process controls, including appropriate quality assurance procedures. This provision requires the operation of back-up or auxiliary facilities or similar systems which are installed by the permittee only when necessary to achieve compliance with the conditions of the permit. 10. Minimization of Adverse Impact The permittee shall take all reasonable steps to minimize or prevent any discharge of sludge use or disposal in violation of this permit which has a reasonable likelihood of adversely affecting human health or the environment. As necessary, accelerated or additional monitoring to determine the nature and impact of the noncomplying discharge is required.