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Ocean Outfall Monitoring: Ponce, Puerto Rico

Puerto Rico Aqueduct and Sewer Authority (PRASA)

Ocean Surveys, Inc. provided water quality monitoring services to support a 301(h) Waiver and Mixing Zone Validation Study offshore Ponce, Puerto Rico.

OSI field teams conducted 11 quarterly surveys at the Ponce effluent outfall.  Services included: “clean technique” water sampling, ADCP current monitoring, CTD/DO/pH vertical profiling, benthic sediment grab sampling, and ROV pipeline inspection.

OSI collected ROV video along the entire length of the outfall structure, including six diffuser risers. 

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