Source Tons SO2

Acid Plant Tailstack emissions 967

Emissions measured by CEM

Vent Fume Stack 232

Emissions measured by CEM

Acid Plant Bypass Stack 78

Emissions measured by CEM

Smelting Fugitives 6089

Emissions calculated by sulfur balance
Emissions inventory reports Tailstack+Vent Fume Stack + Bypass Stack +Smelting Fugitives
Source Tons SO2

Emissions inventory repor

Acid Plant Tailstack emissions 1354

Emissions measured by CEM

Vent Fume Stack 284

Emissions measured by CEM

Acid Plant Bypass Stack 122

Emissions measured by CEM

Smelting Fugitives 4623

Emissions calculated by sulfur balance
Emissions inventory reports Tailstack+Vent Fume Stack + Bypass Stack +Smelting Fugitives
2007 Emissions & Calculations

Source Tons SO2

Acid Plant Tailstack emissions 1382

Emissions measured by CEM

Vent Fume Stack 782

Emissions measured by CEM

Acid Plant Bypass Stack 89

Emissions measured by CEM

Smelting Fugitives 6858

Emissions calculated by sulfur balance

Page 1
2007 Emissions & Calculations

Emissions inventory reports Tailstack+Vent Fume Stack + Bypass Stack +Smelting Fugitives

Page 2
Source Tons SO2

Acid Plant Tailstack emissions 1741

Emissions measured by CEM

Vent Fume Stack 410

Emissions measured by CEM

Acid Plant Bypass Stack 102

Emissions measured by CEM

Smelting Fugitives 2360

Emissions calculated by sulfur balance
Emissions inventory reports Tailstack+Vent Fume Stack + Bypass Stack +Smelting Fugitives
Source Tons SO2

Acid Plant Tailstack emissions 1612

Emissions measured by CEM

Vent Fume Stack 273

Emissions measured by CEM

Acid Plant Bypass Stack 144

Emissions measured by CEM

Smelting Fugitives 2659

Emissions calculated by sulfur balance
Emissions inventory reports Tailstack+Vent Fume Stack + Bypass Stack +Smelting Fugitives
Source Tons SO2

Acid Plant Tailstack emissions 1415

Emissions measured by CEM

Vent Fume Stack 331

Emissions measured by CEM.

Acid Plant Bypass Stack 93

Emissions measured by CEM

Smelting Fugitives 8473

Emissions calculated by sulfur balance; 8473 tons 

SO2
Emissions inventory reports Tailstack+Vent Fume Stack + Bypass Stack +Smelting Fugitives
Source Tons SO2

Acid Plant Tailstack emissions 1204

Emissions measured by CEM

Vent Fume Stack 394

Emissions measured by CEM

Acid Plant Bypass Stack 59

Emissions measured by CEM

Smelting Fugitives 8460

Calculated by ratio to 2010 concentrate 

throughput; 2010 throughput: 694647 tons; 2010 

fug SO2: 8473 tons; 2011 throughput: 693595 

tons; 2011 fug SO2 (calc): 8460 tons; Calculation: 

8473*693595/694647 = 8460 tons

ISA Aux Boiler 0.004
Emissions inventory reports Tailstack+Vent Fume Stack + Bypass Stack +Smelting Fugitives + ISA Aux Boiler

which is more conservative than using Sulfur Balance for fugitive sulfur reporting
+ ISA Aux Boiler
Source Tons SO2

Acid Plant Tailstack emissions 985

Emissions measured by CEM; 985 tons Emissions inventory repo

Vent Fume Stack 510 which is more conservati

Emissions measured by CEM; 510 tons.

Acid Plant Bypass Stack 71

Emissions measured by CEM; 71 tons.

Smelting Fugitives 8414

Calculated by ratio to 2010 concentrate throughput; 

2010 throughput: 694647 tons; 2010 fug SO2: 

8473 tons; 2012 throughput: 689775 tons; 2011 

fug SO2 (calc): 8414 tons; Calculation: 

8473*689775/694647 = 8414 tons

Smelting Fugitives - S Balance 73

If we use the sulfur balance calculation for year 

2012, the fugitives are 73 tons SO2.
Emissions inventory reports Tailstack+Vent Fume Stack + Bypass Stack +Smelting Fugitives

which is more conservative than using Sulfur Balance for fugitive sulfur reporting