The three real critiques, on the record.

Fair question. In February 2026, the Brevard Board of County Commissioners voted 4–1 to place the tax on the ballot without ordering a state-level OPPAGA performance audit. Commissioner Katie Delaney was the sole dissent — she argued voters deserved third-party validation before renewing an ~$583M program.

The majority's case: SOIRL already has an annual independent financial audit, a public monthly Citizen Oversight Committee, and a transparent project dashboard. Adding OPPAGA could have delayed the November ballot.

This is the single strongest opposition argument, so it deserves an honest breakdown. Program funds do not sit in one bucket labeled “spent” or “unspent.” The latest county financial report divides program money into distinct categories that are not interchangeable:

• Expended — money already paid out to contractors for work completed. This is the “spent” number in the strict accounting sense.
• Encumbered / contractually committed — money that has been contractually committed to a specific project and cannot be spent on anything else. From the county's perspective, this money is gone.
• Appropriated but not yet encumbered — money that the Board of County Commissioners has approved for a specific project in the project plan, but for which a construction contract has not yet been signed. Design, permitting, and procurement typically take 12–24 months before contracts land.
• Unrestricted cash balance — the truly uncommitted portion of the trust fund. This is the number legitimately worth asking about.

Combining “spent” and “encumbered / appropriated” into a single number understates the pipeline. Combining “unspent” and “encumbered” into a single number overstates the reserves. The county's most recent Annual Report and the 2026 SOIRL Project Plan Update (Legistar #8632) show the current dated figures broken out by category.

Septic-to-sewer conversions take 18–36 months from design through construction. Muck dredging operations take longer. Money has to be appropriated and encumbered before it can be expended. Some level of unrestricted balance is normal in a ten-year capital program; whether the current level is too high or about right is a legitimate question for the Citizen Oversight Committee and county staff.

Florida Tech itself describes the project as a limited pilot. From Florida Tech's own project FAQ: “Enhanced seawater exchange would not, on its own, solve lagoon water quality issues.” That is the most important sentence in this debate. The people running the pilot say it is not the answer to the lagoon on its own — it is a study of whether enhanced circulation can be a useful additional tool.

The pilot will pump on the order of 0.5 cubic meters per second of ocean water into a small cove in the northern Banana River for one year. Cost: approximately $4.9M on top of ~$2.5M in prior research. That is worth doing. The results will tell us something not currently known.

Meanwhile, nitrogen source reduction — septic-to-sewer, stormwater, muck removal, exactly what SOIRL funds — remains necessary regardless of what the pump pilot finds. The pilot may provide useful local evidence, but source reduction and restoration work do not go away just because circulation improves.

This claim usually rests on three misidentifications that are worth taking apart one at a time.

1. SOIRL does not spray herbicides. When the Save Our Indian River Lagoon Project Plan removes invasive aquatic vegetation, it does so by mechanical harvesting — boats and equipment that physically pull the plants out of the water — not by chemical treatment. Vegetation Harvesting was explicitly added to the Project Plan in 2020 as an alternative to herbicide-based aquatic weed control.

Source: SOIRL Project Plan §4.2.4 — “Mechanical removal or harvest of aquatic vegetation rather than treatment with herbicides.”

2. The herbicide spraying most people are thinking of is in a different watershed. Florida Fish and Wildlife Conservation Commission (FWC) contracts do treat invasive plants like hydrilla with glyphosate, 2,4-D, and diquat — but the bulk of that spraying happens in the St. Johns River basin, which is a separate watershed that drains north into Jacksonville. The St. Johns is not the Indian River Lagoon. The two systems have different drainage, different agencies, and different funding streams. Videos of herbicide spraying near Palatka or in the upper St. Johns show real spraying happening in a real place — just not in the IRL and not funded by SOIRL.

3. Naturally-occurring algae in a freshwater ditch is not evidence of herbicide poisoning. One version of this claim points to videos of periphyton — the felt-like layer of algae, bacteria, and microscopic organisms that grows on submerged surfaces in still freshwater. Periphyton is not a pollution symptom; it is the base of the freshwater food web. Everglades restoration explicitly works to restore periphyton communities because they anchor the entire food chain. Finding periphyton in a Florida freshwater ditch is like finding grass in a meadow. It is what should be there.

Source: Comprehensive Everglades Restoration Plan — Periphyton monitoring background.

On the specific concern about glyphosate in the IRL itself: the SOIRL Citizen Oversight Committee studied this at a July 2023 public meeting. Measured glyphosate concentrations in the Indian River Lagoon were on the order of a few hundred parts per trillion — parts per trillion, not per million or per billion — far below any published toxicity threshold. Multiple Brevard-area municipalities have also passed local resolutions banning glyphosate on city-owned property in favor of non-glyphosate alternatives.

The “profiting from restoring it” framing also does not survive scrutiny of who receives SOIRL contracts: septic-to-sewer conversion is done by licensed plumbers and municipal utilities. Muck dredging is done by regulated dredge contractors under competitive bid. Stormwater projects are done by civil-engineering firms. There is no vertically-integrated “we pollute and then restore” loop; different industries do different work. Every SOIRL contract is a public procurement subject to the county's live project dashboard and independent annual audit.