RP-4 Process Improvements Phase II, Project EN20057


SCH Number
Public Agency
Inland Empire Utilities Agency
Document Title
RP-4 Process Improvements Phase II, Project EN20057
Document Type
NOE - Notice of Exemption
Document Description
The purpose of the proposed project is to enhance the operational capacity of the existing RP-4 treatment system. Various proposed facility improvements or modifications will enhance the performance of these essential treatment system components at the Water Reclamation Facility.

Contact Information

Pietro Cambiaso
Agency Name
Inland Empire Utilities Agency
Job Title
Acting Director of Planning and Resources
Contact Types
Lead/Public Agency


Rancho Cucamonga
San Bernardino
Southern California
Cross Streets
west side of Etiwanda Avenue, between 4th and 6th Streets

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
Section 15301(b) and Section 15302(c)
Reasons for Exemption
The State CEQA Guidelines provide a series of categorical exemptions for projects that have been deemed to have minimal impacts on the environment. The proposed project consists of modifying the existing RP-4 Process Improvements Phase II, Project EN20057 at the existing RP-4 facility. This proposed project has been determined to have no potential to cause significant adverse effects on the environment and will ensure that future operations at RP-4 can be conducted more efficiently and effectively without significant adverse impact. Categorical Exemption Class 1 exempts “the operation, repair, maintenance, permitting, leasing, licensing, or minor alteration of existing public or private structures, facilities, mechanical equipment....involving negligible or no expansion of use beyond that existing at the time of the lead agency’s determination.” “(b) Existing facilities of both investor and publicly owned utilities used to provide electric power, natural gas, sewerage, or other public utility services: ”and Class 2 exemptions consist of “replacement or reconstruction of existing structures and facilities where the new structure will be located on the same site as the structure replaced and will have substantially the same purpose and capacity as the structure replaced, including but not limited to: (c) Replacement or reconstruction of existing utility systems and/or facilities involving negligible or not expansion of capacity.” The exceptions to the issuance of categorical exemptions have been evaluated for the proposed project. The proposed project has been determined not to have a potential to cause significant adverse environmental effects as a result of any of the exceptions. Therefore, this proposed action is not forecast to cause any potential for significant adverse environmental impacts and qualifies with the requirements for Class 1 and Class 2 Exemptions.
County Clerk
San Bernardino


Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613. For more information, please visit OPR’s Accessibility Site.

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