Part 2.2.26 of the 2013 VGP specifies that twice during the first year of permit coverage or system operation, whichever is later, each vessel operating a wet exhaust gas scrubber system must collect and analyze exhaust gas scrubber related samples.4 One of those samples may be conducted as part of a vessel's annual or other survey, and during the first year of system operation, one of those sampling events may be conducted as part of system installation to ensure it is functioning properly. The two samples must be collected at least 14 days apart. After the first year, samples must be collected at least once per calendar year and may be collected as part of the vessel's annual survey as appropriate.
| S.No. | Analytical Group | Method | VGP | IMO |
|---|---|---|---|---|
| 1 | pH | SM 4500-H B | Y | Y |
| 2 | Total Chlorine | APHA 4500-Cl B | Y | Y |
| 3 | Nitrite (NO2) | EPA 353.2 | Y | Y |
| 4 | Nitrate (NO3) | EPA 353.2 | Y | Y |
| 5 | Turbidity | APHA 2130B | Y | Y |
| 6 | Dissolved Metals and Total Metals | EPA 200.8 | Y | Y |
| 7 | Polycyclic Aromatic Hydrocarbons (PAHs) | EPA 3510C / EPA 8270E | Y | Y |
| 8 | Hydrocarbon Oil Index | ISO 9377-2:2000 | N | Y |
(HOI will be applicable for only IMO) Sample Volume: 1.5 Liters required per sampling point.
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