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Discharge Standards: OSPAR, EPA ELG & Limits

Produced water discharge is tightly regulated and monitored. The applicable standard, its averaging basis and the reference analytical method together define the engineering target for the treatment train.

Principal Discharge Standards

OSPAR Performance Standard

The OSPAR convention sets a 30 mg/L monthly-average dispersed-oil performance standard for offshore discharge in the North-East Atlantic.

US EPA ELG

US effluent limitations guidelines for oil and gas extraction set daily-maximum and monthly-average oil-and-grease limits by region.

Regional & Onshore Limits

National and onshore regimes impose their own limits on oil, salinity, toxicity and specific pollutants.

Demonstrating Compliance

Reference Methods

The defined analytical method (for example infrared or GC-based) fixes how oil-in-water is measured against the limit.

Online OiW Monitoring

Online oil-in-water analysers give continuous performance visibility and early warning of excursions.

Sampling & Records

Representative sampling and record-keeping evidence sustained compliance to the regulator.

Designing to the Limit

Target-Driven Trains

The treatment train is sized to the standard, its averaging basis and a margin for variability.

Reliability & Redundancy

Duty/standby and buffering protect compliance through upsets and maintenance.

Documented Performance

Commissioning and ongoing monitoring evidence that the plant meets its consent.

Need a produced water treatment, reuse or reinjection solution?

Reynolds & Bauhm delivers this scope as part of an integrated, single-point engagement matched to your project, programme and regulatory regime.

Industries We Serve

Our expertise spans multiple industries with sector-specific water treatment solutions.