MITG

EGCS (Scrubber) Washwater Testing

Requirements

Part 2.2.26 of the 2013 VGP specifies that twice during the first year of permit coverage or system operation.
Samples must not be collected within 14 days of each other.
Samples must be collected of each of the following:

· Exhaust gas scrubber inlet water (for background),

· Untreated water leaving the scrubber (but before any treatment system), and

· The discharged water (after any treatment).
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.
Records of the sampling and testing results must be retained onboard for a period of 3 years in the vessel’s recordkeeping documentation consistent with Part 4.2.

Analytes for Exhaust Gas Scrubber Washwater

Analytical Group	Specific Compounds
Dissolved Metals	Arsenic, Cadmium, Chromium, Copper, Lead	Nickel, Selenium, Thallium, Vanadium, Zinc
Total Metals	Arsenic, Cadmium, Chromium, Copper, Lead	Nickel, Selenium, Thallium, Vanadium, Zinc
Polycyclic Aromatic Hydrocarbons (PAHs)	Acenaphthylene, Acenaphthene, Anthracene, Benz[a]anthracene, Benzo[ghi]perylene, Benzo[a]pyrene, Benzo[b]fluoranthene, Benzo[k]fluoranthene	Chrysene, Dibenz[a,h]anthracene, Fluoranthene, Fluorene, Indeno[1,2,3-cd]pyrene, Naphthalene, Phenanthrene, Pyrene
Nitrite/Nitrate
pH

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