San Bernardino County Hydrology Manual Update
Summary
SCH Number
2026040003
Public Agency
San Bernardino Flood Control District
Document Title
San Bernardino County Hydrology Manual Update
Document Type
NOE - Notice of Exemption
Received
Posted
4/1/2026
Document Description
The project updates the San Bernardino County Hydrology Manual. The update will revise methods, calculation procedures, design criteria, and guidance used by engineers and planners when they evaluate hydrology and drainage conditions within San Bernardino County. The update improves consistency across County projects and aligns the manual with current best practices, data sources, and stormwater management standards. The project does not involve construction, earth disturbance, field work, or changes to any physical facility. The update is an administrative action that provides technical guidance for future planning and design activities.
Contact Information
Name
Ayida Smith
Agency Name
San Bernardino County Flood Control District
Job Title
Planner III
Contact Types
Lead/Public Agency
Phone
Location
Cities
Incorporated cities and unincorporated areas, San Bernardino
Counties
San Bernardino
Regions
Southern California
Zip
Various
Total Acres
Countywide
State Highways
Various state highways
Railways
Various railways
Airports
Various airports
Schools
Various schools
Waterways
Various waterways
Other Location Info
San Bernardino County watersheds
Notice of Exemption
Exempt Status
Categorical Exemption
Type, Section or Code
Section 15378(b)(2)
Reasons for Exemption
Reasons why project is exempt: Common Sense Exemption (Section 15061(b)(3), which applies when a project has no possibility of causing a physical environmental effect. The Hydrology Manual Update is an administrative action that revises technical methods and guidance only and does not authorize construction or physical work. Section 15378(b)(2), Continuing administrative or maintenance activities, which applies to internal updates to policies, procedures, and standards that do not result in physical impacts. Section 15378(b)(5), Organizational or administrative activities of governments that will not result in direct or indirect physical changes in the environment, which applies to the adoption of guidelines or criteria that serve administrative functions without committing the County to any physical project.
Exempt Status
Other
Type, Section or Code
Common Sense Exemption Section 15061 (b)(3)
Reasons for Exemption
Reasons why project is exempt: Common Sense Exemption (Section 15061(b)(3), which applies when a project has no possibility of causing a physical environmental effect. The Hydrology Manual Update is an administrative action that revises technical methods and guidance only and does not authorize construction or physical work. Section 15378(b)(2), Continuing administrative or maintenance activities, which applies to internal updates to policies, procedures, and standards that do not result in physical impacts. Section 15378(b)(5), Organizational or administrative activities of governments that will not result in direct or indirect physical changes in the environment, which applies to the adoption of guidelines or criteria that serve administrative functions without committing the County to any physical project.
County Clerk
San Bernardino
Attachments
Notice of Exemption
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