Washington Administrative Code
Title 220 - Fish and Wildlife, Department of
ENVIRONMENTAL STANDARDS AND CONSERVATION
Chapter 220-660 - Hydraulic code rules
Section 220-660-450 - Test boring in saltwater areas

Universal Citation: WA Admin Code 220-660-450

Current through Register Vol. 24-18, September 15, 2024

(1) Description: Boring is used to obtain information about the physical properties of the bed. This information is often needed to design foundations for proposed structures and to repair existing structures. Test boring is also commonly used to gather information about the contamination levels of sediment proposed for dredging.

(2) Fish life concerns: Boring-related impacts to fish life are usually minor and short term. Short-term impacts from the project include increased turbidity and noise levels and small vibrations created mainly from the drill rig.

(3) Boring construction: While boring, a person must:

(a) Take samples only within the project area approved by the department;

(b) Conduct boring in a manner that minimizes turbidity and discharge of silt to the water column as follows:
(i) Completely contain each boring and cone penetration action within the casing;

(ii) Do not discharge turbid or slurry-laden process water into state waters;

(iii) Minimize suspending sediment while collecting samples. Place all excess sediment and water derived during coring activities in proper containers, labeled, characterized, and disposed of by the operators in accordance with the appropriate guidelines; and

(iv) Deposit all waste material such as drill spoils and cuttings, construction debris, silt, excess dirt, excess gravel, or overburden resulting from this project in an upland location so that it does not enter waters of the state.

(c) Check drilling equipment daily for leaks and maintain it in good repair to prevent lubricants, grease, and any other deleterious materials from entering state waters.

Disclaimer: These regulations may not be the most recent version. Washington may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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