2023 General Rate Case (2025-27) 

The rates adopted for 2025-2027 will provide customers with long-term value by investing over $19.7 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 Placentia Service Area include but are not limited to upgrading water distribution infrastructure, treatment equipment, reservoirs, and purification equipment essential to groundwater rehabilitation, new systemwide technology to efficiently maintain reliable operation of the water system, installing emergency power generators to reduce the dependence on the electrical grid during catastrophic events, automatic meter reader technology and the replacement of aging booster station, mains, meters, and pumping plant equipment. 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 - Placentia.

Current & Upcoming Projects

Cowan Heights - Ambervale Ln Secondary Feeder Line

Location: Newport Boulevard starting at the T-intersection of Ambervale Ln. and Newport Blvd. and ending just North of Highcliff Drive, south of the Fox Run Plant.

Project Timeline: July 2025 - September 2025

Primary Working Hours: Monday – Friday 8:00 a.m. – 4:30 p.m. 
No work on weekends or holidays.

Construction Crews will work to:

• Use dump trucks, hand tools, and equipment to dig along the new pipeline alignment.

View the Construction Notice.

Recently Completed Projects

Placentia – Plant Improvements

Location: Larkridge Plant at 19762 Larkridge Dr., Yorba Linda, CA 92886

Project Timeline: February 2025 - April 2025

Primary Working Hours: Monday – Friday 8:00 a.m. – 5:00 p.m. 
No work on weekends or holidays.

Construction Crews will work to:

• Use dump trucks, hand tools, and equipment to dig and make improvements to the plants.

View the Construction Notice.

Placentia – Plant Improvements

Location: Ruby Plant, Golden Plant, College Plant, Larkridge Plant, Linda Vista Plant

Project Timeline: September 2024 – October 2024

Primary Working Hours: Monday – Friday 8:00 a.m. – 5:00 p.m. 
No work on weekends or holidays.

Construction Crews will work to:

• Use dump trucks, hand tools, and equipment to dig and make improvements to the plants.

View the Construction Notice.

Cowan Heights - Ridgeway Main Install Project

Location: Newport Blvd., east of Rockhurst and Newport intersection; to the intersection of Greenbrier and Newport Blvd.

Project Timeline:  August 2024 – December 2024

Primary Working Hours:  Monday – Friday | 9:00 a.m. – 3:00 p.m.
No work on weekends or holidays.

Construction crews will work to:

• Install pipe to improve distribution to the system.

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

View the Construction Notice.

College Plant Improvement Project

Location:  College Plant, Trail between Plant Site and Bastunchury, Cornell to start of trail on Bastunchury.

Project Timeline:  June 2024 – November 2024

Primary Working Hours:  Monday – Friday | 8:00 a.m. – 4:00 p.m.
No work on weekends or holidays.

Construction crews will work to:

• Install a drain line from Plant Property to Bastunchury and Cornell.

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

View the Construction Notice.

View the Project Map.

Bradford Well #4 Transmission Main Project

Location: Along Bradford Ave, stretching from Crowther Ave, to beneath the railroad crossing, to Chapman Ave, and along Aguirre Ln (alley) from Santa Fe Ave to Chapman Ave.

Project Timeline:  February 2024 – October 2024

Primary Working Hours:  Monday – Friday | 7:30 a.m. – 5:00 p.m.
No work on Weekends or Holidays.

Construction crews will work to:

• Install a new 12” PVC transmission main on S. Bradford; replace existing 8” cast Iron main with new 8” PVC distribution main at the alley west of South Bradford Ave and on Bradford Ave; Pipeline work along Bradford and Aguirre Ln are to be conducted first while awaiting permit approval from BNSF.

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

View the Construction Notice.

View the Project Map.

PL/YL Systemwide Drought Tolerant Landscaping

Location: 

• Chapman Plant – 120 Main St. Placentia, CA, 92870
• Concerto Plant – 1736 N. Concerto Dr. Anaheim, CA, 92807
• Ruby Plant - 619 Diamond Road, Placentia, CA, 92870

Project Timeline:  February 2024 – March 2024

Primary Working Hours:  Monday – Friday | 7:30 a.m. – 4:00 p.m.
No work on Weekends or Holidays.

Construction crews will work to:

• Install drought-tolerant landscaping.

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

View the Construction Notice.

Plant Improvements - Linda Vista Plant

Location:  Linda Vista Plant at 19551 Lindafair Lane

Project Timeline:  June 2024 – August 2024

Primary Working Hours:  Monday – Friday | 8:00 a.m. – 5:00 p.m.
No work on weekends or holidays.

Construction crews will work to:

• Conduct reservoir improvements at the Linda Vista Plant.

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

View the Construction Notice.

View the Project Map.

Plant Improvements - Timberline Plant

Location:  Timberline Plant at 1008 Timberline Lane

Project Timeline:  June 2024 – August 2024

Primary Working Hours:  Monday – Friday | 8:00 a.m. – 5:00 p.m.
No work on weekends or holidays.

Construction crews will work to:

• Conduct reservoir improvements at the Timberline Plant.

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

View the Construction Notice.

View the Project Map.

Plant Improvements - La Vereda Plant

Location:  La Vereda Plant at 11382 La Vereda

Project Timeline:  June 2024 – August 2024

Primary Working Hours:  Monday – Friday | 8:00 a.m. – 5:00 p.m.
No work on weekends or holidays.

Construction crews will work to:

• Conduct reservoir improvements at the La Vereda Plant.

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

View the Construction Notice.

View the Project Map.

OC-37 SCADA Upgrade Project

Location:  Within the landscape area east of 486 N. Kraemer Blvd, east of the pedestrian sidewalk, and the landscape area between the residences of 2601 Woodacre St and 255 N Thistle Rd.

Project Timeline:  Early April 2024 – End of June 2024

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

Construction crews will work to:

• Installation of new Supervisory Control and Data Acquisition (SCADA) pedestal, control panel, and new conduits within a small landscape area east of 486 N. Kraemer Blvd for remote monitoring of water supply operations from the Metropolitan Water District.

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

View the Construction Notice.

View the Project Map.

Plant Improvements - Newport, Timberline, Peacock, La Vereda

Location: Newport, Timberline, Peacock and La Vereda water treatment plants.

Project Timeline:  July 2024

Primary Working Hours:  Monday – Friday | 8:00 a.m. – 5:00 p.m.
No work on weekends or holidays.

Construction crews will work to:

• Install chlorine analyzer assemblies at various plant sites.

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

View the Construction Notice.

View the Project Map.

Fairhaven Transmission Main at SR-55 Project

Location: From Fairhaven Plant, stretching underneath SR-55 freeway to Marshall Ln cul-de-sac, along the City of Orange Concrete access road to connect next to the intersection of Ethelbee Way and Fairhaven Ave.

Project Timeline:  November 2023 – July 2024

Primary Working Hours:  Monday – Friday | 7:00 a.m. – 4:00 p.m. 

Construction crews will work to:

• Install a new 12-inch pipe underneath the SR-55 freeway between the Fairhaven Plant site located at 2048 E. Fairhaven Avenue, Santa Ana, and Marchall Lane via the jack and bore method, main replacements along the access road between Marshall Lane and Ethelbee Way, and Fairhaven Ave.

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

View the Construction Notice.

Vista Ave to Kansas Ave.: Main Installation/Improvements

Location:  La Jolla Plant (917 Vista Ave.) to the other side of Carbon Creek Channel and into Kansas Ave.

Project Timeline:  Early August 2023 – Early December 2023

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

Construction crews will work to:

• Install a PVC pipe to connect existing mains from the GSWC plant site to Kansas Ave.

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

View the Construction Notice.

View the Project Map.

Pipeline Upgrade Project at State Route – 57

Location:  Along Tafolla St stretching from Orangethorpe Ave to Kansas Ave, underneath SR-57 freeway stretching from Nebraska Ave to Iowa Place, intersection of Iowa Place and Kansas Ave.

Project Timeline:  March 2023 – Late January 2024

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

Construction crews will work to:

• Replace the existing 6” AC main with new 12” PVC pipe and install new carrier pipe underneath SR-57 freeway, also to replace existing fire hydrants and services.

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

View the Construction Notice.

View the Project Map.

Location:  917 Vista Avenue, City of Placentia.

Project Timeline:  Late February 2023 – Late January 2024

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

Construction crews will work to:

• Equip new water well and plant site (tie-in new well) at Golden State Water Company’s La Jolla Plant.

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

View the Construction Notice.

View the Project Map.

Drain Line Improvements at The La Vereda Plant Site

Location:  La Vereda Plant Site, 11385 La Vereda Dr., 11365 La Vereda
1521 Squires Dr., 1512 Squires Dr., 1461 Foothill Blvd,
1451 Foothill Blvd, 1431 Foothill Blvd

Project Timeline:  Late February 2023 – Early June 2023

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

Construction crews will work to:

• Perform drain line improvements for the La Vereda Plant Site by installing
  cleanouts at each bend of the existing alignment for maintenance purposes
  perform spot repairs to improve the drain line.

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

View the Construction Notice.

View the Project Map.

Equipping New Well & Plant Site Improvements at La Jolla Plant

Larkridge Drive Main Install

Location: Oak Meadow Drive, Brookmont Drive, Fairlynn Boulevard, Crestknoll Drive and Larkridge Drive.

Project Timeline:  December 2022 – May 2023

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

Construction crews will work to:

• Install a 12-inch PVC transmission main.   

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

View the Construction Notice.

View the Project Map.

Old Foothill Main Install

Location: Hewes Avenue and Foothill Boulevard

Project Timeline: Mid-November 2022 – February 2023

Primary Working Hours: Monday – Friday | 9:00 a.m. – 3:00 p.m. 

Construction crews will work to:

• Install a 16-inch ductile iron pipe to replace the existing Main.

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

View the Construction Notice.

View the Project Map.

Fairhaven Plant: Decommission Well 2

Location: Fairhaven Plant: 2048 E Fairhaven Ave in Orange, California.

Project Timeline: October 2022 – December 2022 

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

Construction crews will work to:

• Deconstruct water supply well (decommission at end of useful life).

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

View the Construction Notice.

View the Project Map.

Cowan Heights ​Fire Hydrant Replacement Project

Location: 9 locations in Cowan Heights (La Cuesta Dr, Country Hills Dr, Coronel Rd, Edgeview Dr, Apsley Rd, Faren Dr, Orangeview Rd, Smokewood Dr – 2 sites).

Project Timeline: October 2022 – Early December 2022 

Primary Working Hours: Monday – Friday | 8:00 a.m. – 4:30 p.m. 

Construction crews will work to:

• Replace dry-barrel fire hydrants (9 locations)

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

View the Construction Notice.

View the Project Map.

Murray Lane Main Install

Location: Murray Ln. from Skyline Dr to La Cuesta Rd.; La Cuesta Rd from Murray Ln. to Dannen Dr.; Reservoir Rd (East) from  Hunting Horn Dr to Skyline Dr; Work will also be done on  Skyline Dr East of Murray Ln to make connections to existing water mains.

Project Timeline: Monday, October 17, 2022 – End of July 2023 

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

Construction crews will work to:

• Replace the existing 10’’ steel main with a new 8” PVC pipe and replace existing fire hydrants and services 

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

View the Construction Notice.

View the Project Map.

Hunting Horn Plant: Replace Reservoir

Location: 
11272 Reservoir Road in North Tustin, California

Project Timeline:
September 2022 – August 2023

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

Construction crews will work to:

• Replace and upgrade potable water storage reservoir and associated onsite and offsite piping.

This project will upgrade a potable water storage facility 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.

Install PRVs at Country Hills & Hideaway

Location: 
Country Hills Drive and Skyline Drive & end of cul‐de‐sac Hideaway Drive

Project Timeline:
September 2022 – November 2022

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

Construction crews will work to:

• Install two pressure regulating valves and vaults

This project is intended to continue to provide reliable and quality services to local customers. 

View the Constuction Notice.

View the Project Map.

Bradford Ave. Well Treatment

Location: 
315 S. Bradford Ave.

Project Timeline:
August 2022 – April 2023

Primary Working Hours:
Monday – Friday | 7:00 a.m. – 5:00 p.m. 

Construction crews will work to:

• Implement a PFAS treatment system

This project is intended to continue to provide reliable and quality services to local customers. 

View the Construction Notice.

Fairhaven Ave. Well Treatment

Location: 
Fairhaven Ave. between Ponderosa St. and the 55 freeway.

Project Timeline:
August 2022 – April 2023

Primary Working Hours:
Monday – Friday | 7:00 a.m. – 5:00 p.m. 

Construction crews will work to:

• Implement a PFAS treatment system

This project is intended to continue to provide reliable and quality services to local customers. 

View the Construction Notice.

Greenbrier Main Install

Location: 
Greenbrier Rd., from Newport Blvd to Ridgeway Dr; Ridgeway Dr., from Rockhurst to Easter Hill Dr; Terrace View from Greenbrier Rd. to Broadview Pl. Work will also be done in Broadview Place to replace service and hydrants onto existing main.

Project Timeline:
July 13, 2022 - January 2023

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

Construction crews will work to:

• Replace the existing main with 8-inch PVC pipe
• Replace existing hydrants

This project is intended to address aging infrastructure, improve system reliability, and to continue to provide reliable and quality services to local customers. 

View the construction notice.

View the Map for affected customers.

Camden Main Replacement
Camden Dr. from Peacock Hill Dr. to cul‐de‐sac through to End of private road

Project Timeline:
December 20, 2021 - May 2022

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

Construction crews will work to:

• Replace 635 LF of 8″ PVC pipe
• Replace one existing hydrant
• Install 6 services

This project is intended to address aging infrastructure, improve system reliability, and to continue to provide reliable and quality services to local customers. 

View the construction notice.​

Temporary Storage Tank Disassembly at Peacock Hill Plant

Location:  Peacock Plant – 1311 Peacock Hill Dr, North Tustin, CA, 92705

Project Timeline:  July 31, 2023 – August 31, 2023

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

Construction crews will work to:

• Disassemble a temporary storage tank at the Peacock Hill Plant Site.

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

View the Construction Notice.

View the Project Map.

Brier Lane: Main Installation

Location:  New Development (Cowan Ranch Estates) starting at Brier Lane, through the new development, to Newport Blvd.

Project Timeline:  July 2023 – December 2023

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

Construction crews will work to:

• Install a 6-inch and 8-inch PVC pipe in Brier Lane.

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

View the Construction Notice.

Moonbeam Drive Area Main Replacement

Location:  The intersection of Placentia Ave and Harmony Ln, Moonbeam Dr, Stardust Dr; Primrose Ave and Moonbeam St To Ruby Dr.

Project Timeline:  Early June 2023 – Early November 2023

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

Construction crews will work to:

• Replace the existing 6’’ Cast Iron main with a new 8” PVC pipe and replace the existing fire hydrants and services.

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

View the Construction Notice.

View the Project Map.

Wallgreen St and Easton St AMR​ Project

Location:  Intersection of La Jolla St and Wallgreen St, along Wallgreen St, Easton St, and Buccaneer Dr,

Project Timeline:  Mid May 2023 – End of October 2023

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

Construction crews will work to:

• Installation of 6-inch, 8-inch and 10-inch PVC pipe along Wallgreen St and the Easton St, replacing existing main, fire hydrants, and services.

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

View the Construction Notice.

View the Project Map.

Cypress and Carbon Creek Main Install

Location:  Intersection of La Jolla St. and Cypress Ave., along Cypress Ave., and Carbon Creek concrete private road.

Project Timeline:  May 2023 – End of October 2023

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

Construction crews will work to:

• Replace the existing 4’’ cast iron main with a new 8” PVC pipe.

• Remove and replace the 10” AC pipe with 10” PVC pipe.

• Replace existing fire hydrants and services.

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

View the Construction Notice.

View the Project Map.

Bent Tree/Lower Lake Main Replacement
Location: 
Lemon Heights Dr., from Lower Lake to
Lemon Terrace; Lower Lake, from Lemon Heights to Bent Tree Rd.; Bent
Tree, from Lower Lake to County Limit.

Project Timeline:
May 2, 2022 - June 2022

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

Construction crews will work to:

• Replace 1,800 L.F of older 4-inch pipe with 8-inch PVC pipe
• Replace three (3) existing hydrant
• Install 17 services

This project is intended to address aging infrastructure, improve system reliability, and to continue to provide reliable and quality services to local customers. 

View the construction notice.

Concerto Plant: Decommission of Well #2
1736 Concerto Drive in Anaheim, Cal

Project Timeline:
January 2022 - May 2022

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

Construction crews will work to:

• Deconstruct water supply well and on-site treatment facility (decommissioned at the end of useful life)

This project will improve the water supply system to ensure Golden State Water Company continues providing reliable water service to customers.

View the construction notice.

Timberline Reservoir Rehabilitation Project
1018 Timberline Lane, Santa Ana, CA 92705

Project Timeline:
December 6, 2021 – June 10, 2022

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

Construction crews will work to:

• Apply new coating on the interior and exterior of the existing water tank
• Install new safety features (e.g., ladders, safety rail, etc.) on the existing tank
• Complete tank structural improvements
• Install and/or relocate pipes and conduits;
• Install a temporary bolted steel tank at the project site.

This project will improve the water supply system to ensure Golden State Water Company continues providing reliable water service to customers.

Bradford Well 3 Abandonment 
315 S. Bradford Ave, Placentia, CA 92870

Project Timeline:
March 2022

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

Construction crews will work to:

• Deconstruct water supply well (decommission at end of useful life).

This project will improve the water supply system to ensure Golden State Water Company continues providing reliable water service to customers.

Fairmont Oak Meadow PRV Upgrade 
Fairmont Blvd & Oak Meadow Dr, Yorba Linda, CA 

Project Timeline:
October 2021 – February 2022

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

Construction crews will work to:

• Install Electrical/SCADA conduits & wires for existing pressure control valve station

This project is required to provide the reliability of service to local customers.

La Jolla Well Number 3 
917 Vista Ave, Placentia, CA, 92870 

Project Timeline:
June 2021 – October 2021

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

Intermittent 24 hours operation (between 5-10 days each)

Construction crews will work to:

• Week of June 1 – Preconstruction site prep
• Weeks of June 7 & June 14 – Mobilize and Install sound barrier
• Week of July 19 – Set conductor casing
• Week of Aug 2 & Aug 9 – Drill pilot borehole
• Mid through late August – Test Aquifer Zones (hydrogeologic and water quality characteristics)
• Mid through late September – Design Well
• Late-September through Mid-October – Construct Well
• Mid-October through Mid-November – Develop Well (capacity development and testing)

This project will improve the water supply and distribution system to ensure Golden State Water Company continues providing reliable water service to customers.

View the Construction Notice.

Golden Plant
110 E. Golden Ave.

Project Timeline:
Mid-April 2020 – October 2021

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

Construction crews will work to:

• Abandon, remove and replace existing 1.5MG concrete tank with new 1.5MG welded steel tank
• Abandon, remove and replace the existing pump station with new pump station with two 500GPM and one 1,000GPM vertical turbine pumps

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.

College Reservoir
Yorba Linda

Project Timeline:
July 2020 – November 2021

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

Construction crews will work to:

• Abandon, remove and replace the existing 1.0MG concrete tank with (2) new 0.5MG welded steel tanks

This project will ensure GSWC can continue providing reliable water service to local customers by replacing the existing concrete reservoir that is reaching the end of its useful life. GSWC will be working closely with the neighboring HOA to provide additional planting towards the end of the project.

View the Construction Notice.

View the College Reservoir Replacement Presentation.

View the Landscape Plan.

Old Foothill Pipeline 
Old Foothill Blvd, from Fairhaven Ave. to Foothill Blvd.  

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

Primary Working Hours:
Monday – Friday
9 a.m. – 3 p.m.

Construction crews will work to:

• Complete the installation of a 16-inch ductile iron pipe in Old Foothill Blvd., replacing the existing main.

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.

Yorba Linda Fire Hydrant Replacement Project 
Phase A (Sites No. 1 and 10-16): Fairlynn Blvd. (between Esperanza Rd. and
Crestknoll) and on Crestknoll Dr. | Phase B (Sites No. 2-9): Fairgreen Homes Area. 

Project Timeline:
March 15, 2021 – Mid-May, 2021

Primary Working Hours:
Monday – Friday | 9 a.m. – 3 p.m. | OC Public right of way

Monday – Friday | 8 a.m. – 5 p.m. | Fairgreen Homes Area

Construction crews will work to:

• Replace (16) dry barrel hydrants with new wet barrel hydrants

This project is required to ensure GSWC can provide reliable service to local customers by replacing existing obsolete and unreliable dry barrel hydrants with wet barrel hydrants in the area. 

View the Construction Notice.

Cowan Heights Pressure Reducing Valve’s Phase 1 
Parkway/sidewalk in Bimini Dr., west of Hyde Park Dr.; and Arroyo Ave., south of Coronel Rd.) 

Project Timeline:
Mid-September, 2020 – Mid-November, 2020

Primary Working Hours:
Monday – Friday
9 a.m. – 4 p.m.

Construction crews will work to:

• Replace (2) existing Pressure Reducing Valve Stations on Bimini Dr. & Hyde Park Dr. and Arroyo Ave., South of Coronel Rd.

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.

Fairhaven Well
2048 Fairhaven Avenue

Project Update: As of Dec. 6, 2019, crews have completed the installation of the drain line and are installing the discharge pipes and accessory pipes.

Phase 2:

Project Timeline:
Aug. 26, 2019 – March 2020

Primary Working Hours:
8 a.m. – 5 p.m.

Construction crews will work to equip the new water well at the Fairhaven Plant.

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.

Click here for further project details.

Peacock Hill Reservoir
1311 Peacock Hill Dr.

Project Update: As of Dec. 6, 2019, crews have completed the tank recoating and will soon install the roof decking.

Project Timeline:
November 6, 2017 – September 2020

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

Construction crews will work to install 2 temporary storage tanks to collectively store approximately 250,000 gallons

These temporary storage tanks are needed when we take the Peacock Reservoir out of service to ensure that the water supply in the area is not interrupted.

View the construction notice.

Placentia PRV’s Replacement Project
S. Angelina Dr., between Chapman Ave. and Backs Ln. 

Project Timeline:
July 6, 2020 – August 2020

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

Construction crews will work to:

remove three existing Pressure Reducing valve stations and construct one new pressure reducing valve station.

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.

Pipeline Modifications, Concerto Pump Station
1736 Concerto Dr.

Project Timeline:
June 8, 2020 – July 17, 2020

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

Construction crews will work to:

Install 150 LF of 4-inch, 8-inch and 16-inch pipes

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.

Pressure Relief Valves, Cowan Heights
East Rocking Horse Way south of Knights Bridge Road, and Notre Dame Avenue at East St. Germain Circle

Project Update: Phase 1 is on hold, but crews have proceeded with Phase 2.

Phase 2:

Project Timeline:
March 30, 2020 – April 22, 2020

Working Hours:
Monday – Friday
8:30 a.m. – 5 p.m.

Construction crews will work to install two pressure relief valves.

This project will help to prevent over-pressurization events in the distribution system and ensure Golden State Water can continue providing reliable water service to local customers.

View the construction notice.

Linda Vista Reservoir
6591 Kameha Circle in Yorba Linda

Project Timeline:
March 4, 2019 – June 19, 2019

Working Hours:
8 a.m. – 5 p.m.

Construction crews will work to recoat the existing Linda Vista reservoir.

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

View the construction notice.

Larkridge Plant
19762 Larkridge Dr.

Project Timeline:
June 5, 2018 – October 2018

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

Construction crews worked to:

• Recoat the interior of two 350,000 gallon tanks
• Install safety appurtenances on the interior and exterior of the reservoir
• Modify onsite inlet and outlet piping for the reservoirs

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.

Orange County
Skyline Dr., between Cowan Heights Dr. and Hunting Horn Dr., and Peacock Hill Dr. west of Skyline Dr.

Project Timeline:
September 18, 2017 – TBD

Working Hours:
8 a.m. – 4 p.m.

Construction crews worked to:

• Install 3,700 ft. of water pipe
• Install new water services
• Install fire hydrants

Click here to read more about the project.
View the construction notice.

Cowan Heights
La Verada Dr., between Skyline Dr. to the La Vereda Plant; and East Lemon Heights Dr., between Sharon Ln. to the west of Maverick Ln.

Project Timeline:
Late June 2017 – September 2017

Construction crews worked to install 1,600 ft. of new water pipe

View the construction notice.

Placentia
Melrose St., Center St., Main St., Aguirre Ln. and Chapman Ave.

Project Timeline:
August 1, 2016 – October 15, 2016

Working Hours:
7 a.m. – 4:30 p.m.

Construction crews worked to:

• Install new water pipe
• Install new service lines
• Install fire hydrants

View the construction notice.