Delaware Trunk Sewer Rehabilitation


SCH Number
Public Agency
City of San Mateo
Document Title
Delaware Trunk Sewer Rehabilitation
Document Type
NOE - Notice of Exemption
Document Description
The Delaware Trunk Sewer is constructed primarily of uncoated, reinforced concrete pipe, the interior of which has been corroded to the point that the pipe has reached the end of its useful life. The project will rehabilitate approximately 3,200 linear feet of the existing sewer line using a cured-in-place pipe (CIPP) rehabilitation method. This method involves inserting a thick plastic liner into damaged sewer pipes and curing the liner by circulating boiling water through it. Bypass piping would be implemented to allow continued wastewater service during project construction. In some locations, the existing sewer pipe has deteriorated to the pint that spot repair of the pipe using conventional cut-and-cover methods in the street is necessary.

Contact Information

Susanna Chan
Agency Name
City of San Mateo
Contact Types
Lead/Public Agency


San Mateo
San Mateo

Notice of Exemption

Exempt Status
Categorical Exemption
Type, Section or Code
15301, Class 1
Reasons for Exemption
Existing facilities.

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

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