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California urges full federal funding to fix Tijuana River transboundary pollution

AJR16 asks Congress and the President to fund EPA’s Comprehensive Infrastructure Solution, declare a national emergency, and provide operation funding to end chronic beach closures and health harms.

The Brief

AJR16 is a California joint resolution that formally requests the U.S. federal government to fully fund and support the Environmental Protection Agency’s Comprehensive Infrastructure Solution for the Tijuana River and to provide additional federal action to address long‑running transboundary sewage and trash flows from Mexico into California. The resolution also asks the President to permit federal agencies to provide technical and financial assistance for projects in USIBWC Minute No. 328, to declare a national emergency over the crisis, and to ensure ongoing operation and maintenance funding for the South Bay International Wastewater Treatment Plant.

The measure frames the request with public‑health and environmental findings — including documented illnesses, repeated beach closures, and air and water monitoring results — and calls for parallel federal funding to address similar transboundary impacts on the New River that flows into the Salton Sea. AJR16 is nonbinding: it formally urges federal action and transmits the state’s position to federal officials and relevant agencies.

At a Glance

What It Does

AJR16 is a nonbinding joint resolution urging the President and Congress to (1) fully fund EPA’s Comprehensive Infrastructure Solution for the Tijuana River, (2) allow other federal agencies to provide technical and financial assistance for USIBWC project implementation, (3) declare a national emergency, and (4) include operation and maintenance funding for the South Bay plant and funding for New River remediation.

Who It Affects

Directly implicated actors include the U.S. Environmental Protection Agency, the United States Section of the International Boundary and Water Commission (USIBWC), federal budgeting authorities (Congress and the President), and local governments in San Diego and Imperial Counties. Indirectly affected parties include coastal communities (Imperial Beach), border communities (Calexico, Imperial County), regional public health providers, and local tourism and recreation businesses.

Why It Matters

Although nonbinding, the resolution formalizes California’s policy demands and documents state findings that could shape federal political and budgetary priorities. It highlights long‑standing infrastructure and cross‑border governance gaps, presses for sustained O&M funding (not just construction), and elevates environmental‑justice concerns tied to chronic pollution and beach closures.

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What This Bill Actually Does

AJR16 collects and republishes decades of local studies, municipal emergency declarations, and agency findings to make a single, state legislative request: the federal government must provide the funding and interagency support necessary to stop chronic cross‑border sewage, trash, and sediment that flows from Mexico into southern California. The resolution highlights specific evidence — a Scripps Institution of Oceanography estimate tying tens of thousands of annual illnesses to coastal pollution and USIBWC documentation of hundreds of billions of gallons of toxic effluent entering the U.S. — to justify federal urgency.

The resolution frames its asks around concrete federal programs and instruments. It calls for full funding of the EPA’s Comprehensive Infrastructure Solution for the Tijuana River, directs that other federal agencies be allowed to provide financial and technical assistance for projects identified in USIBWC Minute No. 328, and urges that future federal budgets include ongoing operation and maintenance funding for the South Bay International Wastewater Treatment Plant rather than one‑time construction dollars.

It also asks the President to declare a national emergency, which would expand available federal authorities and funds.AJR16 goes beyond the Tijuana River by also urging federal funding to remediate the New River — a separate, highly polluted cross‑border waterway that flows into the Salton Sea and affects Imperial County communities. The resolution reiterates California’s constitutional and Coastal Act commitments to public access and explicitly urges the federal government to act to end multi‑year beach closures in Imperial Beach.

Finally, the measure directs the Assembly Chief Clerk to transmit copies of the resolution to federal and state officials, making California’s demands a formal part of the record the state expects federal decision‑makers to consider.

The Five Things You Need to Know

1

The resolution urges Congress and the President to fully fund the EPA’s Comprehensive Infrastructure Solution for the Tijuana River, rather than provide partial or piecemeal grants.

2

It asks the President to allow federal agencies to provide financial and technical assistance for projects listed in USIBWC Minute No. 328, tying federal interagency support to that specific binational implementation plan.

3

AJR16 explicitly requests the President declare a national emergency for the Tijuana River transboundary pollution to unlock emergency federal authorities and funding streams.

4

The resolution calls for future federal budgets to include ongoing operation and maintenance funding for the South Bay International Wastewater Treatment Plant, not only construction or capital expenses.

5

AJR16 also urges federal funding to address pollution in the New River that crosses the border near Calexico and contributes to severe water‑quality and environmental‑justice impacts.

Section-by-Section Breakdown

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Preamble/Findings

Documenting public‑health and environmental harms

This section assembles the factual basis the Legislature relies on: academic findings (including Scripps’ illness estimates), local emergency declarations by Imperial Beach and San Diego, air and water monitoring data, counts of beach closure days, and USIBWC reports of massive effluent entries. Practically, these findings function as the Legislature’s evidentiary backbone for urging federal action and paint the crisis as chronic, multiform (water, air, economic), and concentrated in disadvantaged communities.

Resolved (1)

Urge full funding for EPA’s Comprehensive Infrastructure Solution

This clause asks Congress and the President to ‘fully fund’ the EPA plan for the Tijuana River. For implementers, that means the state is requesting capital appropriations sufficient to execute EPA’s multi‑project strategy rather than smaller, incremental grants. The resolution does not specify dollar amounts or funding mechanisms — it leaves those budgetary particulars to federal decision‑makers while making the political case for comprehensive financing.

Resolved (2)

Allow interagency financial and technical support (Minute No. 328)

The Legislature requests the President permit all relevant federal agencies to provide financial and technical assistance to the EPA and USIBWC in implementing infrastructure solutions, explicitly including projects under USIBWC Minute No. 328. Operationally, this seeks to reduce interagency barriers to coordinated binational projects, signal state support for Minute 328’s project list, and encourage federal agencies to commit staff and dollars to those projects.

4 more sections
Resolved (3)

Request a presidential national emergency declaration

AJR16 asks the President to declare a national emergency over transboundary flow pollution. Such a declaration would be a call for extraordinary federal action and could unlock emergency procurement, reprogramming, and funding authorities. The resolution urges the declaration as a pathway to accelerate federal response, but it does not create or alter any legal standard for when a national emergency exists.

Resolved (4)

Secure ongoing operation & maintenance funding for South Bay WWTP

This clause urges inclusion of sustained operation and maintenance funding for the South Bay International Wastewater Treatment Plant in future federal budgets. The focus on O&M is pragmatic: the bill cites historical underinvestment in the plant’s maintenance and frames sustained funding as necessary to keep treatment infrastructure compliant with U.S. law and to avoid recurring failures.

Resolved (5)

Address New River impacts and reinforce coastal access obligations

The resolution expands its scope to the New River, urging federal funding for remediation of pollution that affects Imperial County and the Salton Sea. It also reaffirms California’s constitutional and Coastal Act rights to public access and calls on the federal government to take action to end prolonged beach closures in Imperial Beach, signaling that state coastal‑access guarantees are part of the policy rationale.

Resolved (6)

Transmission instruction

The final operative clause directs the Chief Clerk of the Assembly to send copies of the resolution to specified federal and state officials, including the President, Congress leaders, US senators and representatives from California, and the USIBWC commissioner. This is a diplomatic and record‑keeping step intended to ensure Washington receives the state’s formal position.

At scale

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Who Benefits and Who Bears the Cost

Every bill creates winners and losers. Here's who stands to gain and who bears the cost.

Who Benefits

  • Residents of Imperial Beach and south San Diego: the resolution centers documented local health harms (gastrointestinal illness, respiratory symptoms) and seeks funding that would reduce sewage exposure and reopen beaches, yielding public‑health and recreational benefits.
  • Low‑income and Latino communities in Imperial and Calexico: by urging remediation of the New River and highlighting CalEnviroScreen data, the resolution prioritizes environmental‑justice impacts for communities with high pollution burden and limited local resources.
  • Local businesses and tourism operators in southern San Diego: ending recurring beach closures and reducing contamination risks would support tourism, local commerce, and property values dependent on open shoreline access.
  • EPA and state/local public‑health agencies: additional federal funding and interagency support would expand the toolbox for monitoring, remediation, and public‑health interventions and reduce operational strain on local clinics and health departments.
  • Environmental and conservation organizations: funding and projects under Minute No. 328 can strengthen habitat restoration and estuarine recovery efforts within the Tijuana River Valley and the Salton Sea watershed.

Who Bears the Cost

  • United States Section of the International Boundary and Water Commission (USIBWC): the commission faces operational scrutiny and potential demands for more capital and maintenance spending; the resolution directs federal partners to support USIBWC projects, which may increase the commission’s programmatic workload.
  • Federal budget and taxpayers: AJR16 asks for ‘full funding’ and dedicated O&M funds; appropriations and emergency resources would compete with other federal priorities and require congressional allocation.
  • U.S. federal agencies (EPA and others): the resolution asks agencies to provide technical and financial assistance, which requires staff time, interagency coordination, and programmatic resources if they comply.
  • Local agencies and municipalities: while the resolution requests federal funding, some implementation models require local matching, permitting, or operational commitments that can impose costs and administrative burden on city and county governments.
  • Binational coordination structures and Mexican partners: meaningful remediation of source pollution will likely require investment and actions on the Mexican side of the border, raising questions about who finances cross‑border infrastructure and how responsibilities are allocated.

Key Issues

The Core Tension

The central dilemma is urgency versus sustainability: the state demands fast, robust federal intervention (including a national emergency and full project funding) to stop ongoing health and economic harms, but meaningful, durable solutions require binational coordination, long‑term operation and maintenance commitments, and clear funding responsibilities — tradeoffs that a single wave of emergency money or construction funding will not resolve.

AJR16 is a political and evidentiary push rather than a new legal mandate: it urges federal players to act but does not compel them. That nonbinding form is a strength politically (it’s a clear request) and a weakness practically: nothing in the resolution creates federal budgetary obligations, waives sovereignty issues, or obligates Mexican authorities to act.

Implementation therefore depends on federal willingness to use appropriations, emergency authorities, or international negotiation.

The resolution leans on federal capabilities (EPA plans, USIBWC Minute No. 328) while exposing two hard implementation problems. First, binational source control is essential: many of the pollutant inputs originate in Mexican sewer and trash systems, so U.S. capital alone will not eliminate flows without parallel investments and operational agreements in Mexico.

Second, the bill’s emphasis on ‘full funding’ and O&M raises fiscal questions: who pays ongoing maintenance if the infrastructure spans jurisdictions or depends on USIBWC operation, and how will Congress prioritize recurring O&M in an era of constrained budgets? Both issues risk creating infrastructure that is built but not sustainably operated.

Finally, the call for a presidential national emergency is contested terrain. A declaration could accelerate resources but might politicize a technical, binational public‑health problem and invite legal challenges or disputes over the scope of emergency powers.

The resolution does not grapple with attribution or liability questions under the Clean Water Act or how relief dollars would be conditioned on cross‑border cooperation, leaving open governance and accountability questions for any federal response.

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