Officials say subsea cables are active revenue source; sanctuary rules cloud future growth

Grover Beach — City and industry representatives updated the council Monday on subsea fiber-optic cables that land near Grover Beach, reporting the first city payment tied to an operational cable and warning that federal marine sanctuary rules complicate future cable routing.

The update explained why Grover Beach is a cable hub, how much capacity the cables carry, and what the city may expect — both revenue and constraints — as the global subsea market evolves.

RTI Infrastructure vice president Chris Brungart told the council that subsea fiber-optic cables are physically small but carry vast amounts of data; the installed cable is “about half an inch in diameter” yet supports international connectivity to Asia and other hubs.

Brungart and city staff outlined the local picture: Grover Beach now hosts multiple cables installed over the last 20 years and three more in the last wave of deployments. The city’s agreement with RTI and cable operators calls for an initial one-time payment and ongoing annual payments tied to cable operation. City Manager Matt Bronson said the council received the first $100,000 payment in June after one of the newer cables became operational and that the contract provides for $100,000 annually per operational cable, paid quarterly over 25 years.

“This city now receives revenue when cables go online,” Bronson said, noting the payments are tied to operation rather than installation.

Brungart described market drivers for more capacity — primarily data-center requirements and artificial-intelligence workloads — and explained that Grover Beach’s geographic position between Los Angeles and the San Francisco Bay Area and existing terrestrial backhaul networks make it attractive to cable owners.

But he and staff said a new federally designated marine sanctuary — the Chumash Heritage National Marine Sanctuary — that blocks a large swath of Central Coast waters complicates future landings. Under existing sanctuary rules, long-term crossing agreements are difficult to obtain, Brungart said; that has prompted industry-wide engagement with federal lawmakers to seek clearer, long-term permitting paths for telecommunications infrastructure crossing protected waters.

City staff said the first of the new wave of cables that are permitted and operational had been delayed for reasons outside the city’s control. RTI and other industry presenters said some systems are installed but not yet turned on for a variety of geopolitical and regulatory reasons; when systems are tested and declared operational they trigger contractual payments to the city.

Council members asked whether sanctuary rule changes would cause existing cables to be relocated (they would not) and whether the city should expect more direct traffic to Bay Area data centers if sanctuary restrictions ease. Brungart said the sanctuary rules could make landings into Grover Beach more or less attractive depending on how federal clarification progresses.

The presentation noted the potential local benefits beyond revenue: presence of subsea infrastructure can encourage backhaul and data-center investment that bring jobs and local network upgrades for residents and businesses.

City staff said revenues from operational cables have been placed into the general fund and will help support city services and projects; they also thanked local retailers and infrastructure partners who help maintain terrestrial connectivity to the landing sites.

Ending note: Council members asked staff to keep monitoring federal regulatory developments and to continue outreach with industry partners as the sanctuary permitting landscape evolves.