Navigating Compliance - Oily Water Separator (OWS) Inspection Essentials ????

Dear Maritime Professionals,

In the realm of maritime operations, ensuring environmental compliance is not only a responsibility but a commitment to sustainable practices. Today, let's dive into the crucial aspects that marine advisors need to scrutinize during inspections of Oily Water Separator (OWS) equipment. ????

1. Is an Oily Water Separator (OWS) fitted?

Most vessels utilize OWS to reduce the oil content of bilge water to below 15ppm before discharge overboard. Verification of OWS presence can be found in the International Oil Pollution Prevention Certificate Supplement (Form A) and physically sighted within the engine room. Smaller vessels may use bilge water tanks for periodic ashore discharge. ????

2. Was the OWS reportedly operational?

Validation of OWS operational status involves a conversation with the engineering department and cross-referencing with the Oil Record Book (ORB). Record all failures or malfunctions in the ORB. Consistent operational status is critical for compliance. ?????

3. What was the condition of the OWS?

Examine the OWS for leaks, deteriorated pipework, and readable operational panels and gauges. The equipment should be clean without signs of previous leaks. Any abnormal sounds or vibrations during testing may indicate malfunctions. ????

Observation Example: During an inspection, a static OWS was found with a minor leak near the pipework. The chief engineer was immediately informed, and corrective measures were taken to address the issue promptly. ??????

4. Was the OWS tested?

Tests, whether simulated or operational, ensure OWS functionality. Simulated tests involve flushing the Oil Content Meter (OCM) to 0ppm and then witnessing the three-way valve change over. Operational tests witness OWS reducing PPM of bilge water. ????

5. Was the 15ppm meter calibrated?

Refer to the manufacturer's manual for calibration intervals, not exceeding 5 years. Insert the date of the last calibration, visible on the IOPP Supplement or a seal/sticker on the OCM. Certificate of calibration should be posted near the OWS. ?????

6. Was the Bilge Overboard valve secured?

Prevent unauthorized opening by sealing or locking the overboard valve. Adequate signage near the valve informs of consequences. If not secured, provide reasons in a free-text box. Security ensures proper control over bilge water discharge. ????

7. Was the oily water treatment system free of tampering or modifications?

Tampering, bypass, or unapproved modifications can result in severe fines. Indicators include flexible hoses, portable pumps, line taps, and broken anti-tamper seals. Vigilance is key to maintaining system integrity. ?????

Observation Example: In one inspection, evidence of a makeshift flexible hose near the OWS raised concerns, prompting a thorough investigation into potential unauthorized modifications. ???♂???

As we sail towards a cleaner and more compliant maritime future, diligent inspections of OWS equipment play a pivotal role. Share your experiences or insights in the comments below and let's continue promoting sustainable practices at sea. ????

Safe voyages,

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