Remedial Action Report Construction Phase

Home Browse Search

Permit Number: 1500A Expiration Date: 6/30/2000 Page 7 of 10 Pages (4) The permittee complied with any remedial measures required under General Condirion A.3 hereof. d. Burden of proof. In any enforcement proceeding the permittee seeking to establish the occurrence of an upset has the burden of proof. Treatment of Sin~le Operational Event For purposes of this permit, A Single Operarional Event which leads to simultaneous violarions of more than one pollutant parameter shall be treated as a smple violarion. A single operational event is an exceprional incident which causes sunultaneous, unintenrional, unlmowmg (not the result of a Imowing act or omission), temporary noncompliance with more than one Clean Water Act effluent discharge pollutant parameter. A single operahonal event does not include Clean Water Act violations involving discharge without a NPDES permit or noncomphance to the extent caused by improperly designed or inadequate trea~nent facilities. Each day of a smgle operational event is a violarion. 6. Overflows from Wastewater Convevance Svstems and Associated Pumq Stations a. Defmirions (11 ' Overflow" means the diversion and dischargP of waste s~eams from ?ay portion of the wastewater conveyance system including pump starions through a designed overflow device or s~ucture, other than discharges to the wastewater ~eatment facility. (2) "Severe property damage" means substantial physical damage to property, damage to the conveyance system or pump station which causes them to become inoperable, or substanrial and permanent loss of natural resources which can reasonably be expected to occur in the absence of an overflow. (3) "Uncontrolled overflow" means the drversion of waste streams other than through a designed overflow device or sti-ucture, for example to overflowing manholes or overflowing into residences, commercial establishments, or industries that may be connected to a conveyance system. b. Prohibition of overflows. Overflows are prohibited unless: (1) Overflows were unavoidable to prevent an uncontrolled overflow, loss of life, personal injury, or severe property damage; (2) There were no feasible altemarives to the overflows, such as the use of auxiliary pumping or conveyance systems, or maximizarion of conveyance system storage; and (3) The overflows are the result of an upset as defined ui General Condition B.4. and meeting all requirements of this condition. c. Uncontrolled overflows are prohibited where wastewater is likely to escape or be carried into the waters of the ,W State by any means. d. Reporting required. Unless otherwise specified in writing by the Department, all overflows and uncontrolled overflows must be reported orally to the Deparnnent within 24 hours from the rime the permittee becomes aware of the overflow. Reportmg procedures are descnbed in more detail in General Condirion D.S. 7. Public Norification of Effluent Violation or Overflow If effluent limitations specified in this permit are exceeded or an overflow occurs, upon request by the Department, the permittee shall take such steps as are necessary to alert the public about the extent and nature of the discharge. Such steps may include, but are not limited to, poshng of the river at access points and other places, news releases, and pazd announcements on radio and television. S. Removed Substances Solids, sludges, filter backwash, or other pollutants removed in the course of treatment or control of wastewaters shall be disposed of in such a manner as to prevent any pollutant from such materials from entering public waters, causing nu~sance condihons, or creating a public health hazard. SECTION C. MONTTORING AND RECORDS 1. Representative Sampling Sampling and measurements taken as required herein shall be representative of the volume and nature of the monitored discharge. All samples shall be taken at the monitoring points specified in this permit and shall be taken, unless otherwise spec~fied, before the effluent joins or is diluted by any other waste stream, body of water, or substance. Monitoring pomts shall not be changed without notificarion to. and the approval of the Director. 2, Flow Measurements Appropriate flow measurement devices and methods consistent with accepted scientific pracrices shall be selected and used to ensure the accuracy and reliability of ineasurements of the volume of monitored discharges. The devices shall be installed, calibrated and maintained to insure that the accuracy of the measurements is consistent with the accepted capability of that type of device. Devices selected shall be capable of ineasuring flows with a maximum deviation of less than f 10 percent from true discharge rates throughout the range of expected discharge volumes.