Water pressure test pollution control measures

    Hydrostatic testing of pipelines involves pressure testing with water to verify their integrity and to detect possible leaks. Chemical additives (typically a corrosion inhibitor, an oxygen scavenger, and a dye) may be added.

    In managing hydro-test waters, the following pollution prevention and control measures should be implemented:

    (1) using the same water for multiple tests to conserve water and minimize discharges of potentially contaminated effluent;

    (2) reducing the use of corrosion inhibiting or other chemicals by minimizing the time that test water remains in the equipment or pipeline;

    (3) selecting the least hazardous alternative with regards to toxicity, biodegradability, bio-availability, and bio-accumulation potential;

    (4) dosing according to local regulatory requirements and manufacturer recommendations.

    http://www.xysteelpipe.com/info/Water-pressure-test-pollution-control-measures-1705-1.htm

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