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Subchapter 15. Petroleum Safety Orders--Refining, Transportation and Handling
Article 13. Drainage

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§6828. Drainage.

(a) Means shall be provided and used to promptly and safely dispose of oils, oil-water mixtures, liquid corrosives, or toxic liquids resulting from leaks, spills, maintenance activities or operations where the presence or accumulation of such liquids endanger employees.

(b) Provisions shall be made to prevent surface openings or manholes of underground drainage or sewer systems from liberating flammable gases or vapors where such liberated gases or vapors may reach a source of ignition.

(c) The outlets of blow-downs shall be located so as not to endanger employees.

(d) Where equivalent protection is not provided by process piping, means shall be provided for draining vessels in refining units in flammable liquid service. Drains shall discharge to a safe place.

(e) Drainage sumps, pits and ponds for collecting oil or oil and water mixtures shall be in a safe location away from probable sources of ignition and where the exposure of employees to the danger of fire is held to a minimum.

NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.

HISTORY

1. Originally published 7-15-46 (Register 4).

2. Amendment filed 1-20-48 (Register 11, No. 3).

3. Amendment of section and new NOTE filed 9-6-94; operative 10-6-94 (Register 94, No. 36).

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