Golden State Water Company – South San Gabriel Customer Service Area
Golden State Water South San Gabriel Customer Service Area, including portions of Arcadia, El Monte, Irwindale, Monrovia, Monterey Park, Rosemead, San Gabriel, and Temple City; active CWS CA1910223
Population reference
26,240 residents served by active California community water system CA1910223, according to California Drinking Water Watch. The state registry lists approximately 4,736 residential, 280 commercial, 26 agricultural, and 5 industrial connections. Active sources include a Metropolitan Water District treated connection and groundwater wells and treatment facilities identified as Garvey, San Gabriel, and Saxon.
Billing detail
Partial public detail found
Official destination
Open provider website ↗Provider-specific findings
Billing and account research from public material
Provider-specific research notes are displayed separately from fields that contain only an unavailable-information marker. Read qualifiers in each note and verify current account terms with the provider.
- Billing frequency
- Monthly or bi-monthly, depending on the account. Golden State Water’s policy covers bills rendered monthly or bimonthly, and its FAQ says customer bills may follow either cycle. The printed statement controls the due date and cycle; the ordinary residential tariff uses monthly readiness-to-serve charges and Ccf usage tiers.
- Rate structure
- CPUC-regulated increasing block tiers with a meter-size monthly readiness-to-serve charge and separately identified authorized balancing-account, purchased-water/power, conservation, or drought charges when applicable. The January 1, 2026 Region 3 residential tariff applicable to ordinary South San Gabriel residential metered service lists Tier 1 for the first 12 Ccf at $4.921/Ccf, Tier 2 for the next 32 Ccf at $5.659/Ccf, and Tier 3 over 44 Ccf at $6.508/Ccf. The 5/8 x 3/4-inch service charge is $36.76 per month; larger meters cost more. One Ccf equals 748 gallons.
- Residential cost reference
- For a 5/8 x 3/4-inch residential meter under the January 1, 2026 Region 3 tariff, the $36.76 monthly service charge plus 5,000–7,000 gallons (approximately 6.68–9.36 Ccf, all Tier 1) produces an estimated water-only monthly bill of about $69.65–$82.82 before taxes, balancing-account items, conservation/drought surcharges, or other charges. Golden State’s San Gabriel rate page publishes a benchmark of $81.05 for 6,732 gallons/9 Ccf under the prior/current comparison and a projected $93.11 for 2028; the actual 2026 amount depends on the tariff items on the bill.
- Meter reading
- Golden State bills residential usage in Ccf, with one Ccf equal to 748 gallons, and explains that the meter reader records cubic feet and removes the final black-background digits for billing. MyGSWater provides consumption history and account information, but the reviewed South San Gabriel materials do not identify an AMI/AMR vendor, transmission interval, or fixed route calendar. The documented customer-facing method is periodic meter reading plus portal history; universal hourly smart-meter telemetry remains unverified.
- New-account deposit
- Rule 7 governs deposits to establish or re-establish credit, but Golden State Water does not publish one universal South San Gabriel startup-deposit amount or routine credit-check waiver in the reviewed materials. Following a nonpayment shutoff, the company may require a deposit equal to twice the average monthly or bimonthly bill. The actual new-account amount depends on credit, prior service, tenancy, and account circumstances and should be confirmed with 1-800-999-4033. A credit-establishing residential deposit must be fully absorbed before nonpayment shutoff under the published policy.
Context, not a score
How documentation coverage compares
This profile
71%
overview fields with research notes
California
67%
records with any overview detail
National index
50%
records with any overview detail
Coverage measures what this directory documented. It does not measure service quality, affordability, or regulatory compliance.
Research record
Partial public detail found
5 of 7 fields in this section contain provider-specific public detail in dataset August 1, 2026.
Documented
71%
Details not confirmed in the reviewed public material
- Wastewater and sewer calculation
- Activation or transfer fee
“Not confirmed” means the directory did not identify a dependable public statement. It does not mean the provider has no policy or option.
Primary verification routes
- Golden State Water Company – South San Gabriel Customer Service Area public website ↗
Provider-controlled destination used to confirm current customer instructions.
- EPA SDWIS / ECHO lookup (CA1910223) ↗
Search the federal drinking-water database using public water system ID CA1910223.