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JD -7 Mine — Drainage Design Plan 4 <br />Table 2. Terms and Abbreviations <br />Site- 5necitic Terms and Abbreviations <br />001 B -A North <br />Stormwater Catchment for the underground waste rock pile, existing <br />001B -A South <br />Stormwater Catchment for the underground waste rock pile, existing <br />CV 1 — CV3 <br />Culverts <br />OPWRD <br />Open Pit Waste Rock Diversion structure, existing <br />OPWRDP <br />Open Pit Waste Rock Diversion structure, planned <br />OPWRP <br />Open Pit Waste Rock Pile <br />PDE <br />Pit Diversion East, existing <br />PDEP <br />Pit Diversion East, planned <br />PDW <br />Pit Diversion West, existing <br />PDWP <br />Pit Diversion West, planned <br />SCN <br />Stormwater Catchment Northwest, planned <br />UGWRP <br />I Underground Waste Rock Pile <br />General Terms and Abbreviations <br />BMPs <br />best management practices <br />BOD <br />biochemical oxygen demand <br />CDPHE <br />Colorado Department of Public Health and Environment <br />CDPS <br />Colorado Discharge Permit System <br />cfs <br />cubic feet per second <br />COD <br />chemical oxygen demand <br />C.R.S. <br />Colorado Revised Statutes <br />DRMS <br />Colorado Division of Reclamation, Mining and Safety <br />EPA <br />United States Environmental Protection Agency <br />Fps or ft/sec <br />feet per second <br />ft <br />feet <br />FHWA <br />Federal Highway Administration <br />H:V <br />horizontal to vertical ratio of a slope <br />N/A <br />not available <br />NPDES <br />National Pollution Discharge Elimination System <br />TSS <br />total suspended solids <br />UDFCD <br />Urban Drainage and Flood Control District <br />USDCM <br />Urban Storm Drainage Criteria Manual <br />USGS <br />United States Geological Survey <br />4149A.140207 Whetstone Associates <br />