Skip to main content

Hyperion Advanced Water Purification Facility (HAWPF)

An Initial Study/Negative Declaration (IS/ND) has been prepared for the Hyperion Advanced Water Purification Facility (HAWPF) in accordance with the California Environmental Quality Act.

PROJECT LOCATION: The proposed project site is located at Hyperion Water Reclamation Plant, 12000 Vista Del Mar, Playa Del Rey, CA 90293, within Council District 11, in the City of Los Angeles. Figure 1 shows the location of the proposed project.

PROJECT DESCRIPTION: The City of Los Angeles is seeking to construct an advanced water purification facility at the existing Hyperion Water Reclamation Plant (HWRP). This project entails the construction of a 1.5-million gallon per day (mgd) advanced water purification facility, expandable to 5 mgd, to provide water to HWRP and other nearby facilities for a variety of non-potable uses.

PUBLIC REVIEW PERIOD: The proposed project Initial Study Negative Declaration will be circulated for a thirty (30) day public review period, beginning on September 7, 2017 and ending on October 6, 2017. Copies of the document are available for review at the following locations:

  • El Segundo Library

    • 111 West Mariposa Ave., El Segundo, CA 90245: (310) 524-2722

  • City Clerk, City of El Segundo

    • 350 Main St., El Segundo, CA 90245: (310) 524-2305

  • LA Sanitation, Regulatory Affairs Division

    • 1149 South Broadway St., 10th Floor, Los Angeles, CA 90015: (213) 847-5182

  • Office of the City Clerk, City of Los Angeles

    • 200 N Spring St., Room 3951, Los Angeles CA 90012: (213) 978-1020

Please send your written/typed comments on the Draft IS/ND to LA Sanitation by one of the following delivery methods. In your comments, please include your name, email address, telephone number, address, and an RE: HAWPF IS/ND Comments at the top of your comments.


Fax:     (213) 847-1779

Post:    Mr. Paul Cobian

             LA Sanitation – Regulatory Affairs Division

            1149 S. Broadway, 10th Floor

             Los Angeles, CA 90015

LA Sanitation requests that written comments be provided at the earliest possible date, but no later than 5:00 p.m. on October 6, 2017.

(Click on italicized text to view report)

Review Status

Public Review Period

Notice of Availability/Notice of Intent Closed 9/7/17 to 10/6/17
Initial Study/Negative Declaration Closed 9/7/17 to 10/6/17
Adopted Final Negative Declaration