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PARTI <br />Page No. 6 <br />Permit No.: CtJ-00443.77 <br />B. MONITORING REQUIREMENTS <br />Freauency and Sample Tvpe (continued) <br />If the permittee, using the approved analytical methods, monitors any parameter more frequently than required by this permit, <br />then the results of such monitoring shall be Included in the calculation and reporting of the values required in the Discharge <br />Monitoring Report Form (DMRs) or other forms as required by the Division. Such increased frequency shall also be indicated. <br />a. Oil and Grease Monitoring <br />For every outfall with oil and grease monitoring, in the event an oil sheen or floating oil is observed, a grab sample shall be <br />collected, analyzed, and reported on the appropriate DMR. In addition, corrective action shall be taken immediately to mitigate <br />the discharge of oil and grease. A description of the corrective action taken should be included with the DMR. <br />2. Salinity Parameters <br />[n order to obtain an indication of the quantityty of Salinity, measured as total dissolved solids (TDS), being discharged from the site <br />the permittee shall monitor the wastewater eftTuent at the following frequencies: <br />Outfall ~ Fre uenc Sam le T e <br />001, 004 uarter y cab <br />Self-monitoringg samples taken in compliance with the monitoring requirements specified above shall be taken at those locations <br />listed in Part I.B.I . <br />Where, based on a minimum of 5 samples, the permittee demonstrates to the satisfaction of the Division that the level of total <br />dissolved solids (TDS) in the effluent can be calculated based upon the level of electrical conductivity, the permittee may measure <br />and report TDS in terms of electrical conductivity. <br />C. DEFINITIONS OF TERMS <br />1. "Acute Toxicity" means there shall be no acute toxicity in the effluent from this discharge point. The acute toxicity limitation is <br />exceeded if I) a statistically significant difference in mortality (at the 95%'confidence level) is observed for either species between <br />the control and any dilution ]ess that or equal to the identified 1WC or 2) a species mortality in any dilution of effluent (including <br />100% effluent) exceeds 50%. <br />2. "Composite" sample is a minimum of four (4) grab samples collected at equally spaced two (2) hour intervals and proportioned <br />according to flow. <br />3. "Continuous" measurement, is a measurement obtained from an automatic recording device which continually measures provid~ <br />measurements. <br />4. "Daily Maximum limitation" means the limitation for this parameter shall be applied as an instantaneous maximum (or, for pH or <br />DO, instantaneous minimum value. The instantaneous value is defined as the analytical result of an individual sam le. DMRs <br />shall include the maximum )(and/or minimum) of all instantaneous values within the calendar month. Any instantaneous value <br />beyond the noted daily maximum limitation for the indicated parameter shall be considered a violation of this permit. <br />5. "Dissolved (D) metals fraction" is defined in the Basic Standards and Methodolo ies for Surface Water 1002-3 I, as that portion of a <br />water and suspended sediment sample which passed through a 0.40 or 0.45 M (micron) membrane filter. Determinations of <br />"dissolved" constituents are made using the filtrate. This may include some very small (colloidal) suspended particles, which passed <br />through the membrane filter as well as fire amount of substance present in true chemical solution. <br />6. "Grab" sample, is a single "dip and take" sample so as to be representative of the parameter being monitored. <br />7. "In-situ" measurement is defined as a single reading, observation or measurement taken in the field at the point of discharge. <br />8. "Instantaneous" measurement is a single reading, observation, or measurement performed on site using existing monitoring facilities. <br />9. "Potentially dissolved (PD) metals fraction" is defined in the Basic Standards and Methodolo ies for Surface Water 1002-31, as that <br />portion of a constituent measured from the filtrate of a water and suspended sediment sample t at was first treate with nitric acid to <br />a pH.of 2 or less and let stand for 8 to 96 hours prior to sample filtration using a 0.40 or 0.45-UM (micron) membrane filter. Note <br />the. "potentially dissolved" method cannot be used where nitric acid will interfere with the analytical procedure used for the <br />constituent measured. <br />10. "Quarterly measurement frequency" means samples may be collected at any time: during the calendar quarter if a continual discharge <br />. occurs: If the discharge is intermittent, then samples shall be collected during the period that discharge occurs. <br />1 1. "Recorder" requires the continuous operation of a chart and/or totalizer (or drinking water rotor meters or pump hour meters where <br />previously approved,) <br />12. "Seven (7) day average" means, with the exception of fecal coliform bacteria, the arithmetic mean of all samples collected in a seven <br />(7) consecutive day period. Fpr fecal coliform bacteria, it is the geometric mean of all samples taken in a. seven ~7). consecutive day <br />penod: Such seven (7) .day averabes,shall be calculated for all calendar weeks, which.. are .defined as beginning on Sunday and <br />ertdln oir Saturday. 4f`the calendar week .overlaps two.'montns (i.e. the. Sunday. is in one month and alie Saturday. in the .followi <br />month, the seven (7) day average calculated for that calendar week shall be. associated with the month 'that contains the Saturda~ :. <br />Samples.may not be used for more than one (1) reporting period. (Not applicable to.fecal coliform determinations.) <br />Revised 10/292008 <br />