NCG02 Certificate of Coverage No. Part A: Stormwater Monitoring Requirements (no VMA), cont. Total Suspended Settleable Upstream (U) Downstream (D) Date Sample Total Is this SDO Turbidity, NTU Solids (TSS), Solids, Turbidity, Turbidity, Outfall Collected Rainfall in Tier 2? mg/l ml/l NTU NTU No. 50 mo/dd/yr inches Y/N 100 0.1 25 N/A N/A - (lakes, reservoirs, salt waters) or FLOW” 50 10 Quality Quality “NO (ORW, HQW, Tr, PNA) (freshwater Tr designated Standard applies Standard applies streams, lakes, and reservoirs) Part B: Stormwater Monitoring Requirements for SDOs with Vehicle Maintenance Activities (VMA) where facilities use > 55 gallons of new motor oil a month if averaged over the calendar year. NOTE: Other parameters only for outfalls that include both mining activities and VMA. VMA VMA only VMA only If applicable If applicable If applicable If applicable Date Sample New Motor Turbidity, TSS, SS, Upstream (U) Downstream (D) Outfall Collected Rainfall O&G, mg/l Oil Use NTU mg/l ml/l Turbidity, Turbidity, No. (gal/mo.) NTU NTU mo/dd/yr - or inches 100/50 15 55 0.1 50/25/10 N/A N/A “NOFLOW”
Certificate of Coverage No. NCG02 Part A: Stormwater Monitoring Requirements (no VMA), cont. Total Suspended Solids (TSS), mg/l Settleable Solids, ml/l Upstream (U) Turbidity, NTU Downstream (D) Turbidity, NTU Outfall No. Date Sample Collected Total Rainfall Is this SDO in Tier 2? Turbidity, NTU - mo/dd/yr or “NO FLOW” inches Y/N 100 50 (ORW, HQW, Tr, PNA) 0.1 50 25 (lakes, reservoirs, salt waters) 10 (freshwater Tr designated streams, lakes, and reservoirs) N/A Quality Standard applies N/A Quality Standard applies Part B: Stormwater Monitoring Requirements for SDOs with Vehicle Maintenance Activities (VMA) where facilities use > 55 gallons of new motor oil a month if averaged over the calendar year. NOTE: Other parameters only for outfalls that include both mining activities and VMA. VMA TSS, mg/l VMA only VMA only If applicable SS, ml/l If applicable If applicable Upstream (U) Turbidity, NTU If applicable Downstream (D) Turbidity, NTU Outfall No. Date Sample Collected Rainfall O&G, mg/l New Motor Oil Use (gal/mo.) Turbidity, NTU - mo/dd/yr or “NOFLOW” inches 100/50 15 55 0.1 50/25/10 N/A N/A
NCG02-SWTier2DMR-10022015-DEMLR-SW.docx