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TABLE 2 <br />Proposed Surface Water Monitoring Program for <br />Nucla During Temporary Cessation <br /> <br /> <br />Site Name <br /> <br />Location <br /> <br />Drainage Cessation <br />Monitoring Frequency <br />Flow Quality <br /> SW-N1 Nucla Upper Tuttle Draw Semiannual Semiannual* <br /> SW-N2 Nucla Lower West -- -- <br /> Return Ditch <br /> SW-N3 Nucla Lower Tuttle Draw Semiannual Semiannual* <br /> SW-N4 Nucla Lower East -- -- <br /> Return Ditch <br /> SW-NS (NPDES 001) Nucla Mid-Lower See Below** <br /> West Return Ditch <br /> SW-N6 Nucla Mid-West -- -- <br /> Return Ditch <br /> SW-N7 Nucla Upper Vle st Semiannual Semiannual* <br /> Return Ditch <br /> SW-N8 Nucla Lower Second Park -- -- <br /> Irrigation D itch <br /> SW-N9 Nucla Lower Second Park -- -- <br /> NPDES 002 Nucla Tributary to See Below** <br /> Tuttle Draw <br /> NPDES 003 Nucla Tributary to See Below** <br /> Tuttle Draw <br /> NPDES 004 Nucla Tributary to See Below** <br /> Tuttle Draw <br /> NPDES 005 Nucla Tributary to See 8elow** <br /> Tuttle Draw <br /> NPDES 006 Nucla Mid-West See Below** <br /> Return Ditch <br /> *Field parameters (pH, temp., conductivity, and flow) and full suite water quality will be measured <br /> semiannually in April and September. <br /> **Monitoring is d une in compliance and in a ccordance with Colo rado NPDES Permit No. CO -0000213 <br /> far Nucla Mine. In addition, full suite water quality will be measured semiannual ly in April and <br /> September at NPDES 001 (SW-NS). <br />15-4-5 Revised 02/22/90 <br />