Updated October 31, 2022 – The Sanitation Districts’ offices are open to public visitors. Online services continue to be offered and are suggested as the primary form of contact. Please call or email Engineering Counter if you have any questions or need assistance.

Joint Administration Office, Room 110
1955 Workman Mill Road
Whittier, California 90601

(562) 908-4288, ext. 1205
(562) 908-4251 (Fax)
engineeringcounter@lacsd.org

Engineering Counter Hours
Monday - Thursday, 7:30 AM – 3:30 PM
Friday, 7:30 AM – 2:30 PM

Engineering Counter is available to answer questions and assist with the following services:

Trunk Sewer Connection Permits

Required for new 6-inch diameter or smaller private sewer lateral to a Los Angeles County Sanitation Districts’ (Districts) trunk sewer. Also, required for modifications, extensions, etc., of an existing lateral line. To start your application for a permit, please contact us at engineeringcounterDS@lacsd.org.

Note: Payment of Sewer Connection Fee is required in order to obtain a Trunk Sewer Connection Permit. Connection Fee Counter contact information, application and rate information available here.

Sewer and Non-Sewer Plan Reviews

Engineering Counter performs sewer plan review for direct and indirect connection of 8-inch diameter or larger sewers to the Districts’ wastewater collection system in the public right-of-way. Please contact Engineering Counter by telephone or email for more information.

Note: Projects that involve construction within a Districts’ easement or over an underlying sewer require a “buildover” proposal. For additional information, please visit Buildover Procedures and Requirements.

Utility Plan Request

To obtain sewer maps, please Submit a Request or  email a request with location map to engineeringcounter@lacsd.org. As-builts for LACSD facilities are also available to view and download through the LACSD Underground Utilities Application.

Construction Projects

Bid documents for Projects out to bid are only available for electronic download via Quest Construction Data Network (QuestCDN). To obtain and download electronic Bid Documents, Plan Holders List, and Project Bid Results on QuestCDN, click here.

Local Sewer Contacts

The Districts’ construct, operate and maintain trunk sewers throughout a major portion of Los Angeles County. Local wastewater collection systems (local sewers) are constructed, operated and maintained by other public agencies, including the Los Angeles County Department of Public Works and various cities. Such systems are typically tributary to and discharge into the Districts’ sewerage systems. A City or local County agency is a local sewer provider and will issue sewer connection permits and provide sewer plan copies for local sewers. Please contact the City or County agency directly for more information. Below please reference our list of Local Providers for contact information.

If your property is connecting to a local sewer owned or maintained by Los Angeles County Department of Public Works, please contact the agency directly for connection permit issuance.

Consolidated Sewer Maintenance District (CSMD)

LA County Sewer Network Map

Sewer Plans (lacounty.gov)

If your property connects to a local sewer owned and maintained by the City of Los Angeles¹ please contact the City directly for connection permit issuance.

LA City Sanitation - Bureau of Sanitation

Navigate LA Network Map(lacity.org)

 ¹The Districts provide sewer services to limited areas within the City of Los Angeles. Please refer to the Districts’ Service Area Map  to verify if your project is serviced by the Districts’. If further confirmation is required, please contact Engineering Counter.

Free viewers are required for some of the attached documents.
They can be downloaded by clicking on the icons below.

Acrobat Reader Windows Media Player Word Viewer Excel Viewer PowerPoint Viewer