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<br />I-' <br />C). <br />"',J . <br />CD <br /> <br />municipal waste discharger monitor the water supply and <br />the wastewater discharge for salinity, <br />Such monitoring program shall be completed within 2 <br />years and the discharger shall then present the <br />information as specified above, <br />E. Requirements for establishing incremental increases may <br />be waived in those cases where the incremental salt load <br />reaching the main stem of the Colorado River is less <br />than one ton per day or 350 tons per year, whichever is <br />less, Evaluation will be made on a case-by-case basis, <br />F, All new and reissued NPDES permits for all <br />municipalities shall require monitoring of the salinity <br />of the intake water supply and the wastewater treatment <br />plant effluent in accordance with the following <br />guidelines: <br />Treatment Plant Monitoring Type of <br />Desiqn Capacitv Freauencv Sample <br /> <br /><1. 0 MGD <br /> <br />Quarterly <br /> <br />Discrete <br /> <br />1. 0 - 5,0 MGD <br /> <br />Monthly <br /> <br />Composite <br /> <br />>5,0 - 50,0 MGD <br /> <br />Weekly <br />Daily <br /> <br />Composite <br /> <br />composite <br /> <br />50,0 MGD <br /> <br />1. Analysis for salinity may be either as total <br />dissolved solids (TDS) or by electrical conductivity <br />where a satisfactory correlation with TDS has been <br />established, The correlation should be based on a <br />minimum of five different samples, <br />2. Monitoring of the intake water supply may be at a <br />reduced frequency where the salinity of the water <br />supply is relatively uniform, <br /> <br />7 <br /> <br />,~ <br /> <br />l: <br /> <br />11 <br />{l <br />~~ <br /> <br />4. <br /> <br />",." ;" :~- <br />