CLAIM UNDER REVIEW
The County attributes less than 1% of sampled larvae to biosolids or septage sites.
The County’s statement is documented; the percentage is not independently reproduced.
Assessment
Additional context materially changes how the claim should be understood.
This is an editorial assessment of the cited evidence, not a finding by a court or public authority.
Evidence summary
The County information page makes this attribution. Its description is not reconciled with the recovered presentation’s study dates and measures.
What the evidence establishes
The County’s statement is documented; the percentage is not independently reproduced.
What it does not establish
Cannot derive a countywide percentage from the three chart rates.
What remains unknown
The denominator, raw dataset and date discrepancy need resolution.
Supporting sources 3
- Secondary source / research lead · OtherUnresolved research compilation: Run 4 Correction Addendum: Recovered Fly-Science Primary Records
This page documents an unresolved claim or research lead. It is not a finding of fact. UNRESOLVED. SECONDARY SOURCE ONLY. This is a cleaned catalog description of an internal research compilation, not independent corroboration of its contents. Authorship and issuing authority are not independently authenticated. The raw research PDF remains private.
- Primary source · Government recordYuma County’s biosolids information page
County account of its role, complaints, inspections and scientific references.
- Primary source · Scientific studyUniversity of Arizona presentation on potential fly sources in Yuma
Presentation by Paula Rivadeneira dated April 24, 2018, describing fieldwork in 2017.
Contradicting sources
No published contradicting sources are attached. This does not establish that none exist.
Related articles 1
- ExplainerWhat Yuma’s Fly Studies and AgTech Inspections Actually Found
Historical studies, County statements and current complaints answer different questions. None should be made to prove more than it measured.
Related topics 1
- Yuma Biosolids / AgTech
A source-first guide to Yuma’s biosolids debate: State Land leases, AgTech’s reported formal challenge, the City contract, fly research, PFAS questions and the records still needed.