Hydrothermal Processing of Wastewater Solids (HYPOWERS) Demonstration Facility


SCH Number
Public Agency
California Energy Commission
Document Title
Hydrothermal Processing of Wastewater Solids (HYPOWERS) Demonstration Facility
Document Type
NOE - Notice of Exemption
Document Description
Southern California Gas Company (SoCalGas) and the project team propose to design, build, and commission HYPOWERS Demonstration Facility located at Central San's Wastewater Treatment Plant. The project converts wastewater solids into renewable natural gas and bio-crude oil in less than one hour.

Contact Information

Jonathan Bobadilla
Agency Name
California Energy Commission
Contact Types
Lead/Public Agency

Agency Name
The Southern California Gas Company
Contact Types
Project Applicant


Contra Costa
Cross Streets
Central Contra Costa Sanitary District Wastewater Treatment Plant, 5019 Imhoff Place

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
tit. 14, §§ 15301, 15303
Reasons for Exemption
See NOE for full details. This project will design, build and commission a demonstration-scale skid-mounted hydrothermal processing unit to process wastewater solids at an existing wastewater treatment plant. To accommodate the proposed system a concrete pad, a roof, several new pipes and an electrical conduit will likely be installed. There will be also minor grading and trenching to connect to the existing facility and to the utility. See NOE for full details.


Notice of Exemption

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