Part 188.8.131.52 of the 2013 VGP specifies that new build vessels constructed on or after December 19, 2013 and with a maximum crew capacity greater than or equal to 15, and providing overnight accommodations to those crew are required to collect samples of graywater discharge for analysis.
Vessel owners/operators must collect and analyze two samples per year, collected at least 14 days apart, and report the results of those samples as part of their Annual Report.
Samples must be analyzed for the following:
· Biological Oxygen Demand (BOD)
· Fecal coliform or E. coli
· Total suspended solids
· Total residual chlorine.
Sampling and testing shall be conducted according to 40 CFR Part 136
In MITG, we may test for the graywater effluent and certify the equipment’s compliance with 2013 VGP, according to customer’s requirements.