WAC 332-17-460
WAC 332-17-460. Pits or sumps
The owner or operator shall provide pits and/or sumps of adequate capacity and design to retain all fluids and materials necessary to the drilling, production, and related operations on the well. No contents of pits and/or sumps shall be allowed to:
(1) Contaminate streams, artificial canals, waterways, groundwaters, lakes, or rivers;
(2) Adversely affect the environment, persons, plants, and wildlife; and
(3) Adversely affect esthetic values of the property or adjacent properties.
When pits and/or sumps are no longer needed, they shall be pumped out and the contents disposed of in approved disposal sites unless otherwise approved by the department.