1. Arroyo Avenue drain outfalls into Sleepy Hollow Creek Backwatered.

2. The lagoon accumulates rotting seaweed, garbage and sediment, and sometimes discharge from several outfalls.

3. During the winter months, great flocks of gulls gather at rubbish tips and sewage outfalls.

4. Next, the user must enter the approximate drainage area for each of the outfalls.

5. The highest incidence of aberrant appendages occurred at sites downstream from domestic and industrial sewage outfalls.

6. Siltation (e.g. run-off, dredging, outfalls) Abrasion (e.g. boating, anchoring, ) Selective extraction (e.g. aggregate dredging, entanglement)

7. Investigations conducted at the Caucasian Black Seaside and shelf revealed that the protection and rational development of the geological environment involve scientifically well-founded arrangement of harbours and coastprotecting structures within the sea littoral, which is stabilized by alongshore drift originating as a rule at the major rivers' outfalls.