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PART I <br />Page 2 of 19 <br />C. FUO'INUI'ES -APPLICABLE Z~7 PRECIDDYG PAGfS <br />-The thirty (30) day average shall be determined b5f the arithmetic <br />mean of all samples collected during a thirty (~0) ~ectttive-clay <br />period. Samples shall not be used far more than one (1) reporting <br />period. (Not applicable to fecal coliform determinations -see <br />footnote ~/.) <br />J -The seven (7) day average shall be ~~^^+*+a by the arithmetic mean <br />of all samples taken in a seven (7) day period. Samples may rrt be <br />used for more than one (1) reporting period. (Nat applicable to <br />fecal coliform determinations -see footnote a~/.) <br />J -This limitation shall be determined by a single sample ar set of <br />samples as required by Part I.B., Sample Type. <br />cal/ -When the measurement frequency indicated is quarterly, the samples <br />shall be collected during Marrh, June, September and Decenber, if a <br />continual discharge occurs. If the disr~arge is intermittent, then <br />sales shall be collected during the period that disd~arge occurs. <br />If the permittee, using the approved analytical methods, monitors any <br />parameter ~re f,~,eq„a„rty than required by this permit, then the <br />results of such monitoring shall be included in the calculation aryl <br />reporting oP the values required in the Di~.harge Monitorirq Report <br />Form or other foss as required by the Division. Such increased <br />frequency shall also be indicated. <br />-Definitions of Sauq~le Type <br />1. A "COmpO57.te" Sample, far monitoring r~l,i,~anorMa, 15 d mini,mm, Of <br />four (4) grab samples collected at equally spaced two (2) hour <br />intervals aryl proportioned according to flow. <br />2. A "grab" sample, for IDonitar'ixI xequix+eAents, as a single "dip aryl <br />take" sample. <br />3. An "mss" aieasur~erct, for monitoring requi*p^p^*~, is a <br />single reading, observation, ar mea.^ureIDent performed on site. <br />4. A "C071t 171LlWS^ ~a~~^r'^ent, for flow monitoring requirements, ].s a <br />~~~TMp~++} obtained frLmm an autocratic reoordirxl device which <br />continually measures flow. <br />5. A "visual" observation, for oil and grease monitoring <br />requirements, 15 ObServiSfg the di~rharge to check for thg presence <br />of a visible sheen or floati~ oil. <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />6. An "in-situ" measurement, for monitoring +'~~~Tp^+ps+ts, is defined <br />as a single reading, observation or measurement taken in the field <br />at the point of discharge. <br /> <br />