Capital Projects

GRC 2023 General Case (2025-27)

The rates proposed for 2025-2027 will provide customers with long-term value by investing over $12.4 million in needed capital investments and maintenance of local water infrastructure essential to the reliable production, treatment, and delivery of quality water.   

Investments in the Los Alamitos Service Area include but are not limited to upgrading water facilities and treatment plants to improve water supply reliability, upgrading water distribution infrastructure, the replacement of aging water infrastructure including water mains, meters, pumping equipment, water purification, structures, and installing emergency power generators to reduce the dependence on the electrical grid during catastrophic events. As part of our commitment to reliability and public safety, Golden State Water proactively invests in upgrading and maintaining its fire hydrants.

For frequently asked questions about the rate-making process, click here.

Learn about the infrastructure investments in the water system serving your community’s homes and businesses: 2023 GRC Infrastructure Investments - Los Alamitos

Current & Upcoming Projects

Bloomfield Water Treatment Plant Replace Filter Media

Location: 10293 Bloomfield St, Los Alamitos, California 90720

Project Timeline: February 2025 – March 2025

Working Hours:
Monday – Friday, 8:00 a.m. – 4:00 p.m. No work on Weekends or Holidays.

Construction crews will work to:

• Replace the filter media at the Bloomfield Water Treatment Plant

This project will ensure Golden State Water can continue providing reliable water service to local customers.

View the Construction Notice.

Recently Completed Projects

Cherry Plant - Replace Filter Media

Location: 10941 Cherry St, Los Alamitos, California 90720

Project Timeline: October 2024 – March 2025

Working Hours:
Monday – Friday, 8:00 a.m. – 4:00 p.m.

Construction crews will work to:

• Replace the filter media at the Cherry WTP.

This project will ensure Golden State Water can continue providing reliable water service to local customers.

View the Construction Notice.

Fire Service Installation Project

Location: 8171 Monroe Ave.

Project Timeline: February 20, 2024 – End of February 2024

Working Hours:
Monday – Friday, 8:00 a.m. – 4:00 p.m.

Construction crews will work to:

• Install a 8-inch fire service lead for 8171 Monroe Ave.

This project will ensure Golden State Water can continue providing reliable water service to local customers.

View the Construction Notice.

Magnolia Avenue Water Main Project

Location: 10500 Magnolia Ave., off Cerritos Ave.

Project Timeline: January 2, 2024 – End of January 2024

Working Hours:
Monday – Thursday, 9:00 a.m. – 3:00 p.m.

Construction crews will work to:

• Installing a water main at 10500 Magnolia Ave. for fire protection.

This project will upgrade treatment facilities at an existing plant to ensure Golden State Water Company continues providing quality water service to customers.

View the Construction Notice.

View the Project Map.

4-inch Fire Service Lead Project

Location:  11151 Los Alamitos Blvd., Los Alamitos, CA 90720

Project Timeline:
August 15, 2023 – End of August 2023

Working Hours:
Monday – Friday, 8:00 a.m. – 3:00 p.m. or per City of Orange

Construction crews will work to:

• Install 4-inch fire service lead for 11151 Los Alamitos Blvd

This project will upgrade treatment facilities at an existing plant to ensure Golden State Water Company continues providing quality water service to customers.

View the Construction Notice.

Ball Plant Iron and Manganese Treatment Project

Investment:
Over $2 million

Project Location: 5772 Ball Road in Cypress, California.

Project Timeline:
May 2022 – March 2023

Working Hours:
Monday – Friday
8 a.m. – 5 p.m.

Construction crews will work to:

• Add iron and manganese treatment
• Modify plant piping and existing process to accommodate

This project will upgrade treatment facilities at an existing plant to ensure Golden State Water Company continues providing quality water service to customers.

View the Construction notice.

West OC Fire Hydrant Replacement Project

Investment:
$1,370,000

The installation will be in the following locations: 39 locations in Rossmoor (Foster Rd, Martha Ann Dr, Weatherby Rd, Copa de Oro, Kempton Dr, Silverwood Dr, Silver Fox Rd, and nearby streets), 1 location in Los Alamitos, and 12 locations in Cypress (Pauline Dr, Margaret St, Rosemary Dr, Lime Ave, Orange Ave, Leilani Ln, Salisbury Ln, Ethel St, Christopher St).

Project Timeline:
May 2022 – December 2022

Working Hours:
Monday – Friday
8 a.m. – 4:30 p.m.

Construction crews will work to:

• Replace dry-barrel fire hydrants and valve enclosures (approximately 50 locations in Rossmoor, Cypress, Los Alamitos).

This project improves service reliability to our customers by replacing aging infrastructure that has reached the end of its useful life.

View the Construction notice.

View the West Orange County Fire Hydrant Replacements - Vicinity Map and List.

Ruth Elaine/ Main Replacement Project

Investment:
$3,200,000

Locations: Martha Ann Dr/Ruth Elaine Drive, From Silverwood Dr to Wallingsford Rd; Kensington Rd/Quail Run Rd, from Silverwood to Wallingsford; Donnie Ann Rd, Donnis Rd. to Wallingsford; Silverwood, from Martha Ann to Wembley; Shakespeare and Chesney from Martha Ann to Kensington; Donnis and Wallingsford, from Ruth Elaine to Donnie Ann

Project Timeline:
May 9, 2022 – March 2023

Working Hours:
Monday – Friday
8 a.m. – 4:30 p.m.

Project Update: 

The contractor has installed the 8’’ PVC pipeline, water services and meter boxes for the project.  Connections to existing water mains have been completed.  The contractor has installed the remaining fire hydrants and reconnected customer lines to new water services. The contractor is performing asphalt restoration (slurry sealing).

Construction crews will work to:

• Replace 12,000 L.F of older 4-inch pipe with 8-inch PVC pipe
• Replace 600 L.F of older 14-inch pipe with 16-inch DI pipe
• Install 247 services
• Install 24 6-inch fire hydrants

Forward-Looking Construction Schedule:

Upcoming slurry sealing work:

March 6 – 8:00 a.m. to 5:30 p.m.

• Asphalt slurry seal:  Silverwood Drive (from the east of Martha Ann Dr to the east of Wembley Rd) – as weather permits.  No parking or use of the road from 8:00 a.m. to 5:30 p.m. (Residents should relocate vehicles off the street and driveways onto adjacent streets before 8:00 a.m.)
• A Temporary Detour will be in effect during the slurry seal application and drying period.  Company vehicles will be parked nearby with “Road Work Ahead” or “Road Closed Ahead” signs. “No-Parking” signs and barricades will be posted during the times that residents should not walk, park or drive on the affected roadway areas.
• Temporary Road Closure:  Residents are highly encouraged to park on neighboring streets for the day. To avoid disturbing the slurry during the curing process, vehicles along the affected portion of the road will not be able to move in/out of the driveways.  The affected roadway area will be closed for one full working day while the work is in progress.

View the Construction notice.

View the Community Services District Presentation.

View the Ruth Elaine AMR Project Update.

Cherry Plant: Replace Backwash Tank
10941 Cherry Street in Los Alamitos, California.

Investment:
$1,260,000

Project Timeline:
May 2022 – September 2022

Working Hours:
Monday – Friday
8 a.m. – 5 p.m.

Construction crews will work to:

• Replace filtration backwash storage tank and appurtenant process and drain piping

This project will replace the existing steel tank and backwash system appurtenances to ensure Golden State Water Company continues providing quality water service to customers.

View the construction notice.

Gay St. Pipeline Replacement
Gay St, from Crescent Ave to end of the cul‐de‐sac

Investment:
$650,000

Project Timeline:
June 7, 2021 – October 2021

Working Hours:
Monday – Friday
7:30 a.m. – 4 p.m.

Construction crews will work to:

• Replace 1,800 L.F of older 6-inch pipe with new 8-inch pipe
• Install (5) 6-inch fire hydrants
• Install additional (46) 1-inch services

This project is required to ensure Golden State Water provides reliable service to local customers by replacing the existing old pipelines that are anticipated to be reaching the end of the useful life.

View the Construction Notice.

Belmont & Sumner Area Mains Abandonments Project
Sumner Pl. between Crescent Ave. & Merten Ave., Belmont St. between Crescent Ave. & Merten Ave. and La Salle St. between Crescent Ave. and cul-de-sac at the south end of La Salle St.

Investment:
$415,000

Project Timeline:
April 2021 – September 2021

Working Hours:
Monday – Friday
7:30 a.m. – 4 p.m.

Construction crews will work to:

• Abandon a total of 5,800 L.F of 4-inch pipe located inside private properties and transfer (66) domestic services to the street frontage
• Install (20) additional domestic services
• Install additional (66) new customer house lines (new meter/s to existing connection point/s)

This project is required to ensure Golden State Water can continue providing reliable water service to local customers.

View the Construction Notice.

View the Notification Letter .

Rustic/Stacie Main Installation Project​
Private driveway (Stacie Lane), through Walter Elementary School parking lot and in Rustic Lane

Investment:
$235,000

Project Timeline:
June 28, 2021 – August 13, 2021

Working Hours:
Monday – Friday
8 a.m. – 4 p.m.

Construction crews will work to:

• Install 300 LF of new 8-inch PVC pipe to connect the existing 8-inch main on Stacie Ln with the existing 6-inch main in Rustic Ln

This project is required to ensure the quality and reliability of service to local customers by eliminating dead-ends in the pipe system.

View the Construction Notice.

Saint Ann Main Replacement
Saint Ann Ave. from west of Walker St. to Cypress Ave.

Investment:
$670,000

Project Timeline:
October 2020 – Mid-December 2020

Working Hours:
Monday – Friday
7:30 a.m. – 4:30 p.m.

Construction crews will work to:

• Replace 1,400 LF of older 6-inch pipe with new 8-inch PVC pipe
• Install 56 one-inch services
• Install 1 six-inch fire hydrant

This project will improve the distribution system and ensure Golden State Water can continue providing reliable water service to local customers.

View the Construction notice.

Howard Ave. Main Replacement

We appreciate the community’s patience as crews worked to complete the first phase of the project, which was delayed by wet weather and other unanticipated challenges.

Phase 2:
Scheduled to begin in the second quarter of 2020. During this phase, crews will work to construct individual house lines to the new meter locations along the street frontage in order to abandon the old alleyway main located north of Howard Avenue between Reagan and Bloomfield.

Phase 3:
The schedule for the final phase of construction has not yet been determined. During this phase, crews will work to construct house lines and abandon the alleyway main located north of Howard between Bloomfield Street and Lexington Drive.

Investment:
$2.8 million

Project Timeline:
November 5, 2018 – TBD

Working Hours:
Monday – Friday
7:30 a.m. – 5 p.m.

Construction crews will work to:

• Install 7,500 LF of pipeline
• Install 7 hydrants
• Install 181 services

This project will improve the distribution system and ensure Golden State Water can continue providing reliable water service to local customers.

Click here for more information on this project.

View the construction notice for Howard Avenue.

View the construction notice for Farquhar Avenue.

Crescent Main Replacement
Crescent Ave from west of Walker Ave. to Kington Way.

Investment:
$330,000

Project Timeline:
September 16, 2020 – Mid-December 2020

Working Hours:
Monday – Friday
8:00 a.m. – 4 p.m.

Construction crews will work to:

• Replace 680 LF of older 4-inch pipe with new 8-inch PVC pipe
• Install 14 services

This project will improve the distribution system and ensure Golden State Water can continue providing reliable water service to local customers.

View the Construction Notice.

Lanett Area Main Replacement Project
The following streets will be affected: Lanett St., between New York Ave. and Alaska Ave.; cul-de-sac’s Lolina Lane and New Mexico Lane; Belday St., between New York Ave and Alaska; and New York Ave. from Moody St. to the end of the street.

Investment:
$1.9 million

Project Timeline:
June 22, 2020 – October 2020

Working Hours:
Monday – Friday
7:30 a.m. – 4 p.m.

Construction crews will work to:

• Replace 3,500 LF of older 6-inch & 4-inch pipes with new 8-inch pipe
• Install 10 hydrants
• Install 86 services

This project will improve the distribution system and ensure Golden State Water can continue providing reliable water service to local customers.

View the construction notice.

View the presentation to Cypress City Council.

Fern Street Main Replacement
The following streets will be affected: Fern Street; parts of Stanford Avenue; parts of Sycamore Street; parts of Court Street; parts of Acacia Avenue; and parts of Garden Grove Boulevard

Investment:
$1.25 million

Project Timeline:
February 6, 2019 – Aug. 16, 2019

Working Hours:
9 a.m. – 3 p.m. on major streets
7 a.m. to 5 p.m. otherwise

Construction crews will work to:

• Install 4,000 LF of pipeline
• Install 4 hydrants
• Install 64 services

This project will improve the distribution system and ensure Golden State Water can continue providing reliable water service to local customers.

View the construction notice.
 

Florista West Tank
10852 Cherry St.

Investment:
$742,300

Project Timeline:
June 18, 2017 – November 2018

Working Hours:
Monday – Friday
8 a.m. – 5 p.m.

Construction crews worked to:

• Recoat the interior of a 1.5 million gallon reservoir
• Install safety appurtenances on the interior and exterior of the reservoir

These improvements extend the useful life of the reservoirs and allow for their continued safe operation, enabling Golden State Water Company to continue to provide reliable, quality water to our customers.

View the construction notice.
 

Lowden Well
10552 Lowden St.

Project Timeline:
May 23, 2018 – June 1, 2018

Working Hours:
Monday to Friday

8 a.m. – 5 p.m.

Construction crews are working to:

• Install new pump equipment for Lowden Well

View the construction notice.

Main Relocation Project

Location: The intersection of Lincoln Ave. and Denni St., in the City of Cypress.

Project Timeline: Early March 2024 – End of April 2024

Working Hours:
Sunday – Thursday, 9:00 a.m. – 5:00 p.m.

Construction crews will work to:

• Relocate the existing pipeline at Lincoln Ave. and Denni St. by abandoning the existing 10-inch AC main in place and installing a new 12-inch PVC pipeline.

This project will ensure Golden State Water can continue providing reliable water service to local customers.

View the Construction Notice.

Parkewood Transmission Water Main Project

Location: Along Blackmer from Apia Dr to Lampson Ave, along Lampson Ave from Blackmer St to Tulip St.

Project Timeline: November 2023 – July 2024

Working Hours:
Monday – Friday, 8:00 a.m. – 5:00 p.m.

Construction crews will work to:

• Install a 12-inch PVC water main transmission pipeline, air vacs, blow-offs along Lampson Ave and Blackmer St.

This project will ensure Golden State Water can continue providing reliable water service to local customers.

View the Construction Notice.