City of Rio Dell - Infiltration Gallery Grading Project

Summary

SCH Number
2013088423
Lead Agency
Regional Water Quality Control Board, Region 1 (North Coast), Santa Rosa
Document Title
City of Rio Dell - Infiltration Gallery Grading Project
Document Type
NOE - Notice of Exemption
Received

Document Description
The project area is located approximately 550 feet upstream of the Highway 101 Bridge. The project involves excavation of an approximately 2 to 3-foot deep, 6-foot wide, approximately 250-foot long, u-shaped trench near the upstream end of the infiltration gallery. The purpose of the trench is to allow more surface water to flow over the infiltration gallery piping. The middle portion of the u-shaped trench will be located over the dry portion of the infiltration gallery's original cobble/boulder top dressing. The ends of the trench will extend approximately 35 feet from the infiltration gallery across the dry gravel bar and into the edge of ther wetted river channel.

Contact Information
Dean Prat
Regional Water Quality Control Board, Region 1 (North Coast), Sa
5550 Skylane Boulevard, Suite A
Santa Rosa, CA 95403

(707) 576-2801

Location

Cities
Rio Dell
Counties
Humboldt

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15301
Reasons for Exemption
Repair and maintenance of the infiltration gallery involving no expansion of the existing use.
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