Laserfiche WebLink
PARTI <br />Page No. 5 <br />Permit No.: CO-0045161 <br />~~ <br />Parameter easurement requency amp e ype <br />s.u. ont In-situ <br />Tota IiOn m throw h December 31, 2007 Ont ra <br />Tota ecovera a ron m e innin Janua 1, 2008 ont ra <br />B X m 00 A o~ ~ nceyer_ Isc_ azge ont _ ra _ _ <br />"BTEX monitoring will be required only iI [he W ashbay Pond discharges into Ihe~Vor~ Area Pon3. <br />Self-monitoringg sampplingg byy the permittee for compliance with the monitoring requirements specified above shall be performed at <br />the following OuffalIs: OOIA through OlOA - at the outfalls of the sedimentation ponds pnor to entering state waters as Identified in <br />Figures 2 through 7. <br />If the permittee, using the approved analytical methods, monitors any pazameter more frequently than required by [his permit, then <br />the results of such monitoring shall be included in the calculation and reporting of the values required in the Drscharge Monitoring <br />Report Forrrt (DMRs) or other forms as required by the Division. Such increased frequency shall also be indicated. <br />b. 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 appropnate DMR. In addition, corrective action shall be taken immediately to mitigate <br />the discharge of oil and grease, A description of the corrective acion taken should be included with the DMR. <br />2. Salinity Parameters <br />In order to obtain an indication of the quantity of Salinity; measured as total dissolved solids (TDS), being discharged from the site <br />the pemtittee shall monitor the wastewater a went a[ the following frequencies: <br />ut a s re uenc am e e <br />lA-OlOA uarter ra <br />Self-monitoring samples taken in compliance with the monitoring requirements specified above shall be taken at those locations <br />listed in Part I.ts.l. <br />Where, based on a minimum of 5 samples, the pemilttee demonstrates to the satisfaction of the Division that the level of total <br />dissolved sohds.(TDS) m the effluent can be calculated based upon the level of electrical conduchvtty, the pemvttee may measure <br />and report TDS m terms of electrical conductivrty. <br />C. DEFIlVITIONS OF TERMS <br />• I. "Acute Toxicity" means there shall be no acute toxici, m the effluent from the applicable dischar a point. The acute toxicity <br />lirmtaton Is exceeded d 1~ a statistically significant d~erence m mortality jot the 95% confidenceglevel) is observed for either <br />species between the contro and any dduuon less that or equal to the rden 'red IWC or 2) a species mortality in any dilution of <br />effluent (including 100% effluent) exceeds 50%. <br />2. "Chronic lethality" occurs when a statistically si ficant difference, of the 95% cotifidence level, occurs in the chronic test between <br />the mortality of the test species in 100% effluen[~e chronic IWC = 100%) and the control. <br />3. "Compposite" sample is a rninunum of four (4) grab samples collected at equally spaced two (2) hour intervals and proportioned <br />according to flow. <br />4. "Continuous" measurement, is a measurement obtained from an automatic recording device which continually measures provides <br />measurements. <br />5. "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 analyttca] result of an individual sample. )7MRs <br />shal) include the maximum (and/oz minimum) of. all, instantaneous values within the calendar month Any instantaneous value <br />beyond the noted daily maximum limitation for the mdtcated parameter shall be considered a violation of this permit. <br />6. "Dissolved (D) metals fraction" is defined in the Basic Standards and Methodolo ies for Surface Water 1002-31, as that portion of a <br />water and suspended sediment sample which passe ou a or micron mein rang filter. Determinations of <br />dissolved" constituents are made usm the filtrate. This may include some very sma 1 (colloidal) suspended particles which passed <br />through the membrane filter as well as ~te amount of substance present m true chemical solution. <br />7. "Grab" sample, is a single "dip and take" sample so as to be representative of the pazameter being monitored. <br />8. "In-situ" measurement is defined as a single reading, observation or measurement taken in the field ai [he point of dischazge. <br />9. "Instantaneous" measurement is a single reading, observation, or measurement performed on site using existing monitoring facilities. <br />10. "Potentially dissolved (PD) metals fraction" is defined in the Basic Standards and Methodologies for Surface Water 1002.-31, as,that <br />portion of a constituenit measured from the 5ltrate of a water an su- a spendec~ se~imen sa-f mTeTFa~as tlrsCtrea e~with nitric acrd 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 ~ 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 />11. "Quarterly measurement frequency' means samples maybe collected at any time during the calendar quarter if a continual discharge <br />occurs. II the discharge is intermittent, then samples shall be collected dunng the period [hat dischazge occurs. <br />• 12. "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 />Revised 1202005 <br />