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0 STANDARD PROVISIONS AND REPORTING REQUIREMENTS September 1993 FOR WASTE DISCHARGE REQUIREMENTS FOR DISCHARGES REGULATED BY CHAPTER 15 AND/OR PART 258 -22- 1. "Reporting Period" means the time interval during which samples are collected and analyzed, and the results then reported to the Board, to comply with a specified monitoring and reporting frequency. The maximum reporting period for analysis of all Constituents of Concern is five years; for Monitoring Parameters it is six months (generally, Spring/Summer e April 1 to September 30, and Fall/W inter= October 1 to March 31). The Reporting Period for the Annual Summary Report extends from April 1 of the previous year to March 31 of the current year. The due date for the submittal of any given report will be 15 days after the end of its Reporting Period, unless otherwise stated. 22. "Receiving Waters" refers to any surface or ground water which actually or potentially receives waste constituents, leachate, or surface or ground waters which come in contact with waste materials or contaminated soils. 23. "Sample size": a. For Monitoring Points, means the number of data points obtained from a given Monitoring Point during a given Reporting Period used for carrying out the statistical or non-statistical analysis of a given analyte during a given Reporting Period; or b. For Background Monitoring Points, means the number of new and existing data points collected under 2550.7(e)(11 and 12) from all applicable Background Monitoring Points in a given monitored medium—used to collectively represent the background concentration and variability of a given analyte in carrying out statistical or non- statistical analysis of that analyte during a given Reporting Period. 24. "Standard Observations" means: a. For Receiving Waters: i. Floating and suspended materials of waste origin: presence or absence, source, and size of affected area; ii. Discoloration and turbidity: description of color, source, and size of affected area; iii. Evidence of odors: presence or absence, characterization. source, and distance of travel from source; iv. Evidence of water uses: presence of water-associated wildlife; V. Flow rate; and vi. Weather conditions: wind direction and estimated velocity, total precipitation during recent days and on the day of observation; b. Along the perimeter of the WMU: i. Evidence of liquid leaving or entering the Unit,estimated size of affected area, and flow rate (show affected area on map); ii. Evidence of odors: presence or absence, characterization, source, and distance of travel from source; and iii. Evidence of erosion and/or of daylighted refuse.