Central Basin East

Overview May 28, 2020

Golden State Water is committed to serving nearly 20,000 customers in the Central Basin East Service Area, including portions of Artesia, Cerritos, Downey, Hawaiian Gardens, La Mirada, Lakewood, Long Beach, Los Alamitos, Norwalk, Santa Fe Springs, Whittier and adjacent county territory. We’ve been serving high-quality, reliable water to the area for more than 80 years.

Two water systems serve the Central Basin East CSA. Water delivered to customers in the Artesia System is a blend of groundwater pumped from the Central Groundwater Basin. Water delivered through the Norwalk System is a blend of groundwater pumped from the Colorado River Aqueduct and the State Water Project.

Post June 8, 2022

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

Post May 28, 2020

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

Tariff Sheets

Financial Assistance

Low Income Assistance

Maps

Post June 2, 2020

Central Basin East Rebates

Central Basin East CSA

Post May 28, 2020

Capital Projects

2023 General Rate Case (2025-27)

The rates adopted for 2025-2027 will provide customers with long-term value by investing over $33.2 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 East Service Area include but are not limited to constructing a new well to improve water supply reliability; upgrading water distribution infrastructure, water treatment facilities, and systemwide technology that monitors and controls the water system; replacing aging water mains, meters, pumps, and water purification equipment, as well as installing backup 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 - Central Basin East.

Current & Upcoming Projects

Norwalk – Systemwide Drought Tolerant Landscaping

Location: Pioneer Plant 1: 11508 Pioneer Blvd, Norwalk, CA 90650 and Pioneer Plant 3: 11505 Pioneer Blvd, Norwalk, CA 90650 in Central District

Project Timeline: May 2025 – June 2025

Working Hours:
Monday – Friday (No weekends or holidays)
7:00 a.m. – 4:00 p.m.

Construction crews will work to:

Install drought-tolerant landscaping including artificial turf.

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

View the Construction Notice.

Recently Completed Projects

Systemwide Drought Tolerant Landscaping

Location: 20702 E Hawaiian Ave, Lakewood, CA, and Juan Plant 22317 Juan Ave, Hawaiian Gardens, CA.

Project Timeline (Estimated):

January 8, 2023 – February 8, 2024

Working Hours:
Monday – Friday (No weekends or holidays)
8:00 a.m. – 4:00 p.m.

Construction crews will work to:

Install drought-tolerant landscaping including artificial turf.

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

View the Construction Notice.

Hawaiian Plant Replace Filter Media

Location: 20702 S. Hawaiian Ave., Lakewood, CA, 90715.

Project Timeline (Estimated):

December 7, 2023 – January 21, 2024

Working Hours:
Monday – Friday (No weekends or holidays)
8:00 a.m. – 5:00 p.m.

Construction crews will work to:

Remove existing media, replace, and clean the filter.

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

View the: Construction Notice.

Juan Plant Replace Filter Media

Location: 22317 S. Juan Ave., Hawaiian Gardens, CA, 90716.

Project Timeline (Estimated):

December 11, 2023 – January 25, 2024

Working Hours:
Monday – Friday (No weekends or holidays)
8:00 a.m. – 5:00 p.m.

Construction crews will work to:

Remove existing media, replace, and clean the filter.

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

View the Construction Notice.

Centralia Plant Replace Filter Media

Location: 12054 Centralia Road in the City of Hawaiian Gardens.

Project Timeline:
October 9, 2023 – November 12, 2023

Working Hours:
Monday – Friday (No weekends or holidays)
8:00 a.m. – 5:00 p.m.

Construction crews will work to:

Remove and replace existing filter media.

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

View the Construction Notice.

175th, 185th, and Norwalk Main Replacement
175th St, Roseton Ave, Maidstone Ave, Jersey Ave, 176th St, 178th St, Alburtis Ave, 183rd St 185th St and Norwalk Blvd. in Artesia, CA.

Investment:
$3,580,000

Project Timeline:
November 9, 2020 – February 2021

Working Hours:
Monday – Friday (excluding holidays)
7 a.m. – 5 p.m.

Construction crews worked to:

Install 6,700 feet of pipeline
Install 30 fire hydrants
Install 196 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.

Aloha Elementary School Main Replacement
214th street between Haston Place & Rossford Ave., Lakewood, CA.

Investment:
$415,200

Project Timeline:
October 5, 2020 – November 2020

Working Hours:
Monday – Friday (excluding holidays)
7 a.m. – 3:30 p.m.

Construction crews worked to:

Install 1,100 feet of pipeline
Install 3 fire hydrants
Install 16 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.

Studebaker Well No. 3
Near the intersection of Studebaker Road and Cecilia Street

Investment:
$1.132 million

Next Phase:
Aug. 15, 2019 – Oct. 27, 2020

Working Hours:
TBD

Construction crews will work to:

Construct new groundwater well
Install a new pump and motor

This project will provide a new groundwater source for the local water system and ensure Golden State Water can continue providing reliable water service to local customers.