Central Basin West
Conservation
Following several years of heavy precipitation and snow in California, conditions have dramatically changed for many parts of the State. In response, the state has rolled back drought emergency provisions that are no longer needed while maintaining other measures supporting regions and communities facing water supply challenges.
Effective Sunday, May 14, 2023, Golden State Water Company modified outdoor watering restrictions to allow watering up to three days per week. Given that water conditions will continue to evolve, customers are encouraged to use water wisely and only use what is needed.
Golden State Water is recommending customers limit outdoor irrigation between the hours of 7 PM and 8 AM per the following schedule:
| Addresses Ending In: | Watering Days: |
|---|---|
| Even Numbers (0, 2, 4, 6, 8) | Sunday, Wednesday, Friday |
| Odd Numbers (1, 3, 5, 7, 9) | Tuesday, Thursday, Saturday |
Rates
As a regulated utility, every three years Golden State Water’s rates are determined by the California Public Utilities Commission (CPUC) through a General Rate Case (GRC) to ensure customers receive a fair rate for reliable, quality water service. New rates allow for investments to avoid the costly and sometimes dangerous effects of deferring maintenance or delaying the replacement of aging infrastructure.
2023 General Rate Case (2025-27 Rates)
In January of 2025, the California Public Utilities Commission (CPUC) adopted a General Rate Case for Golden State Water Company (Golden State Water) that includes local infrastructure investments and new water rates for 2025, 2026, and 2027. The new rates went into effect February 1, 2025.
These rates reflect Golden State Water’s long-term commitment to providing customers with high-quality water and reliable service by proactively investing in their community’s water supply and distribution systems. We never want customers to think twice about the quality of the water coming from their taps.
To learn how your rates are invested in your community, visit the Capital Projects tab, and for frequently asked questions about the rate-making process, click here.
- The average residential customer with a 5/8 X 3/4” meter using 6,732 gallons (900 cubic feet or 9 Ccf) per month will see their 2024 monthly bill increase from $76.01 to $81.80, effective Feb. 1, 2025 (excluding any applicable surcharges).
- The average commercial customer with a 5/8 X 3/4” meter using 26,180 gallons (3,500 cubic feet or 35 Ccf) per month will see their 2024 monthly bill decrease from $243.04 to $233.00, effective Feb. 1, 2025 (excluding any applicable surcharges).
Rates/Infrastructure Investments
- 2025-27 Infrastructure Investments/Water Rates Fact Sheet - Central Basin West
- 2025-27 Infrastructure Investments/Water Rates Fact Sheet - Central Basin West Español
- About Golden State Water Company
Tariff Sheets
- Rates - Residential
- Rates - Non-Residential
- Rates - Reclaimed Water Service
- Understanding Your Tariff Sheet
- Review All Rates, Tariffs and Advice Letters
Financial Assistance
Maps
- English
- Spanish
- here
- Fire Protection - Public
- Fire Protection - Private
- 2022-24 GRC Fact Sheet
- Schedule 14.1
- 2022-24 Investments/Rates Fact Sheet
- About Golden State Water Company
- 3 Things to Know About the Rate-Setting Process
- PFAS Fact Sheet
- 2025-27 Proposed Investments/Rates Fact Sheet
- 2025-27 Proposed Investments/Rates Fact Sheet (Spanish)
- Read more
Capital Projects
2023 General Rate Case (2025-27)
The rates adopted for 2025-2027 will provide customers with long-term value by investing over $41.4 million in needed capital investments and maintenance of local water infrastructure essential to the delivery and treatment of reliable, quality water.
Investments in the Central Basin West Service Area include but are not limited to constructing four new wells to improve water supply reliability; upgrading water distribution infrastructure, water treatment facilities, systemwide technology that monitors and controls the water system, land and water rights, replacing aging water mains, meters, pumps, and water purification equipment, as well as installing safety equipment and backup generators to reduce 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 - Central Basin West.
Current & Upcoming Projects
Paramount – Century Plant, Replace Backwash Tank
Location:
7128 E. Century Blvd., Paramount, CA 90723
Project Timeline:
April 2025 – August 2025
Working Hours:
Monday – Friday (excluding holidays)
8:00 a.m. – 4:00 p.m.
Construction crews will work to:
Replace the backwash tank in the Century 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.
Florence – Graham Drought Tolerant Landscaping
Location:
Hampshire Plant: 1954 Laura Avenue, Huntington Park, CA 90255 & Nadeau Plant: 7836 Walnut Drive, Los Angeles, CA 90001
Project Timeline:
April 2025 – June 2025
Working Hours:
Monday – Friday (excluding holidays)
8:00 a.m. – 6:00 p.m.
Construction crews will work to:
Replace non-functional turf with drought tolerant landscaping.
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.
Recently Completed Projects
Crafton Avenue Area Main Replacement
Job Location: Crafton Ave, Alamo Dr., Beck Ave., Bell Ave., Florence Ave., Gage Ave., Nelson Dr., Nevada, Southall Lane, Walker Ave & Wilcox Ave.
Project Timeline:
January 2023 – July 2023
Working Hours:
Monday – Friday (excluding holidays)
7:00 a.m. – 5:00 p.m.
Construction crews will work to:
- Install 8,000LF of 8” PVC
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.
Domestic Water Service Irrigation Installation
Job Location: 6619 King Avenue, Units A-G
Project Timeline:
January 2023 – February 2023
Working Hours:
Monday – Friday (excluding holidays)
7 a.m. – 5 p.m.
Construction crews will work to:
- Install new (7) 1” domestic water service & (1) 1” Irrigation
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.
Installation of New Water Main, Fire Hydrants and Customer Services
Prince Ave, John Ave, Mary Ave, Plevka Ave, Firestone Blvd, Compton Ave, 87th PL, 89th ST & 92nd ST.
Investment:
Over $3,200,000
Project Timeline:
June 13, 2022 – February 2023
Working Hours:
Monday – Friday (excluding holidays)
7 a.m. – 5 p.m.
Construction crews will work to:
- Install approx. 7,400 LF of 8” new main
- Install 12 fire hydrants
- Install 231 services.
The installations listed above are a replacement to old installations that have served their useful life. The project will upgrade and improve the water distribution system pipeline, services and fire hydrants, to continue the reliable and safe delivery of potable water well into the future.
View the Construction Notice.
Walnut Drive Area Main Replacement
Walnut Dr., Florence Ave, Alameda Ave, Crockett Blvd, 73rd ST, 74th ST, 75th ST, 76th ST, 77th ST & 78th ST.
Investment:
$4,500,000
Project Timeline:
October 8, 2021 – February 5, 2023
Working Hours:
Monday – Friday (excluding holidays)
7 a.m. – 4 p.m.
Construction crews will work to:
- Install approx. 13,600 LF of 8” & 12” new main
- Install 24 fire hydrants
- Install 457 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.
Otis Ave. Area Main Replacement
Otis Ave between Florence Ave and Gage Ave, Prospect Ave & King Ave between Gage Ave and Bell Ave, Nevada St. & Acacia St. between Prospect Ave and Mayflower Ave.
Investment:
$2,860,000
Project Timeline:
November 30, 2020 – April 30, 2021
Working Hours:
Monday – Friday (excluding holidays)
7 a.m. – 4 p.m.
Construction crews worked to:
- Install 4,100 feet of 8” new main
- Install 3,000 feet of 12″ new main
- Install 15 fire hydrants
- Install 231 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.
Lucille Ave. Area Main Replacement
Lucille Ave, Nevada St, Acacia St, Riverside, Ave, Gifford Ave, and Clarkson Ave.
Investment:
$1,740,000
Project Timeline:
September 8, 2020 – February 2021
Working Hours:
Monday – Friday (excluding holidays)
7 a.m. – 4 p.m.
Construction crews worked to:
- Install 4,785 feet of 8” new main
- Install 14 fire hydrants
- Install 122 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 .
Sample Station Replacement
Los Angeles, Bell, Bell Gardens and South Gate
Project Timeline:
Feb. 19, 2020 – March 25, 2020
Construction crews will work to replace 30 sample stations.
This project will ensure Golden State Water can continue taking reliable and accurate samples in the local distribution system for water quality testing.
Main Street Area Main Replacement
Hollydale System
Investment:
$1,322,500
Project Timeline:
August 16, 2018 – November 2019
Working Hours:
City of South Gate
Monday – Friday (excluding holidays)
8 a.m. – 4 p.m.
City of Paramount
Monday – Friday (excluding holidays)
7 a.m. – 4 p.m.
Construction crews worked to:
- Install 5,400 feet of pipeline
- Install 14 fire hydrants
- Install 122 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.
Florence-Graham
80th St., 82nd Pl., 83rd St., 84th St., 85th St., Beach St., and Bell Ave.
Investment:
$2.17 million
Project Timeline:
August 29, 2018 – December 2018
Working Hours:
Monday – Friday (No weekends or holidays)
7:00 a.m. – 4:00 p.m.
Construction crews worked to:
- Install 1.26 miles (6,670 LF) of water pipeline
- Install 12 fire 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.
View the construction notice.
Florence-Graham
Nadeau St., 80th St., 81st St., 82nd St., 83rd St., 84th St., 84th Pl., 85th St., Naomi Ave., and Hooper Ave.
Investment:
$4.78 Million
Project Timeline:
Phase I: September 11, 2017 – March 2018
Phase II: November 13, 2017 – May 2018
Working Hours:
Monday – Friday
7 a.m. – 4 p.m.
Construction crews worked to:
- Install 15,650 ft. of new water pipe
- Install 411 new service lines
- Install 33 new fire hydrants
View construction notices:
Part 1 and Part 2
Bell
California Ave., Loma Vista Pl., San Luis Ave., Bell Ave. and Corona Ave.
Project Timeline:
January 4, 2017 – late May 2017
Construction crews worked to:
- Install 9,000 ft. of new water pipe
- Install 17 new fire hydrants
- Install 242 new service lines