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2012 Ocean Ranger Guidebook Revision 3-7-12 - Alaska ...

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<strong>20<strong>12</strong></strong> <strong>Ocean</strong> <strong>Ranger</strong> <strong>Guidebook</strong> 3-7-<strong>12</strong><br />

Black Water (sewage) Examples - possible sources toilets, urinals and drainage<br />

from medical facilities (U.S. restriction).<br />

Bilge Water: Water that collects in the lowest inner part of a ship’s hull. Bilge<br />

water is frequently contaminated with oil and other lubricants from the engine<br />

room. Under various national and international standards, discharged bilge water<br />

must not exceed a certain maximum oil concentration (for example, 15 parts per<br />

million).<br />

Biological Oxygen Demand (BOD): An indirect measure of the concentration of<br />

biologically degradable material present in organic wastes. It usually reflects the<br />

amount of oxygen consumed in five days by biological processes breaking down<br />

organic waste.<br />

Black Water: Water contaminated with human waste, collected from shipboard<br />

toilets. Under various national and international standards, black water must be<br />

treated before being discharged from a vessel. Discharge: In this context, any<br />

solid or liquid material that emanates from a vessel to a body of water, including<br />

anything spilled, leaked, poured, pumped, emitted or dumped from the vessel.<br />

Black Water System: includes marine sanitation devices (MSDs) and other<br />

systems to treat, store, and discharge sewage. MSD approvals by USCG, IMO,<br />

or Administration Approved to MARPOL Annex IV.<br />

Chemical Oxygen Demand (COD): A measure of the oxygen required to oxidize<br />

all compounds, both organic and inorganic, in water.<br />

Conductivity: A measure of the ability of a solution to carry an electrical current.<br />

Conventional Parameters: Pollutants typical of municipal sewage. BOD, TSS,<br />

bacteria, oil and grease, and pH are defined as conventional by EPA. ADEC and<br />

USCG added suspended solids, ammonia, conductivity, chlorine, ammonia,<br />

phosphorus, total organic carbon, and chemical oxygen demand to the list of<br />

conventional parameters.<br />

CVE: Control Verification Examination is the examination of vessel for<br />

compliance with SOLAS requirements and applicable U. S. regulations. More<br />

properly referred to as the Passenger Vessel Certificate of Compliance<br />

Examination.<br />

Discharge: means any release, however caused, from a commercial passenger<br />

vessel, and includes any escape, disposal, spilling, leaking, pumping, emitting, or<br />

emptying.<br />

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