American River Watershed Common Features 2016 Project — American River Contract 3, Geotechnical Investigations


SCH Number
Public Agency
Central Valley Flood Protection Board
Document Title
American River Watershed Common Features 2016 Project — American River Contract 3, Geotechnical Investigations
Document Type
NOE - Notice of Exemption
Document Description
The investigations will provide analytical data for soil that is anticipated to be excavated as part of the American River Watershed Common Features 2016 Project — American River Contract 3, which is being implemented by the U.S. Army Corps of Engineers (USACE). Borings will be conducted using hand-auger, hollow stem auger (HSA), and rotary wash drilling methods. A flat-bottomed boat would be used to access some of the boring locations. Soil cuttings from the island borings will be spread around the boring location and covered with straw. Soil cuttings from the other boring locations will be disposed of at an appropriate waste facility. Excavated soils from these locations will be stored in 55-gallon drums or in 20 cubic yard bins pending receipt of analytical results. The drums or bins will be watertight and stored at a location approved by USACE, Central Valley Flood Protection Board, and Sacramento Area Flood Control Agency. After completion, borings will be backfilled to ground surface with cement/bentonite grout according to Sacramento County Environmental Management Department permit requirements.

Contact Information

Miles Claret
Agency Name
Central Valley Flood Protection Board
Contact Types
Lead/Public Agency


Other Location Info
Geotechnical investigations will occur along the right and left banks of the American River in various locations between approximately River Mile 3.0 near the Business 80 crossing and upstream of Watt Avenue to approximately River Mile 11.0 within the American River Parkway in Sacramento, California. Sampling will occur near the Business 80 crossing on the left bank, between Howe Avenue and Watt Avenue on the right bank, upstream of Watt Avenue on the left bank, and on two river islands located between River Mile 7.85 and 8.5.

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15306 Information Collection; 15304 Minor Land Alterations
Reasons for Exemption
The Project consists of geotechnical investigations that will not result in a major disturbance to the environment. State and federally listed species will not be impacted. Water quality will not be impacted. Signs and detours will be provided to users of the Parkway to communicate any bike closures and detours. Sampling locations will be backfilled upon completion and sites will be restored to pre-project conditions. No mitigation is required. Please note, the signed NOE is not attached. If you would like to request a signed copy of the NOE, please contact Miles Claret at:


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