71 · What Other Places Did: The Contrast

Hypothesis-neutral. This chapter compares administrative measures, not contamination. It never claims California "did nothing", only that no dip-vat-specific inventory, notification, cleanup guideline, or remediation program has been located in searchable public records. Grades: [A1/A2/B1/B2/C]. "Not located" ≠ "does not exist"; it reflects web-searchable records plus bot-blocked agency pages, and is an evidence gate, not a finding.

71.1 The single structural difference

The same arsenical chemistry was used across three jurisdictions. What differs is who built and ran the vats, and that difference determined whether anyone wrote down where they were.

The California program was compulsory and state-administered on paper (State Veterinarian + county Boards of Supervisors, 1907 law), but the physical vats were a ranch responsibility. USDA Circular 183 told ranchers to buy bulk white arsenic and mix it on-site, and noted that "homemade dips are the ones most commonly used" [A1, S-USDA-C183]. No state or federal office is recorded as having inventoried where those homemade vats stood [B1 + absence].

71.2 Southeast US / Florida: government-run and logged

Florida's dipping ran for decades and was operated by the program itself. As a result:

• ~3,000+ vat sites are named in old Florida state records, though a University of Florida team went looking precisely because so many had been "abandoned without recording their locations" (~3,241 records, locations largely unknown) [B2 / underlying A1, S-UF-VATS].
• Florida keeps a (weak) public county-level list and a statutory regime: Statute §376.306 makes private owners liability-exempt and cleanup voluntary, to a residential target of 2.1 mg/kg arsenic (Ch. 62-777 SCTL) [A2, read directly].
• The USDA Forest Service funds CERCLA (Superfund) remediation of arsenical dip-vat sites on national-forest land in the Southern Region [B1, ITRC].

Even the "messy" US Southeast did more than California: a public list, a statutory cleanup target, and an actively funded federal remediation program on public land.

71.3 Australia (NSW): the full apparatus California lacks

New South Wales dipped on the same chemistry (arsenic until tick resistance ~1955, then DDT). When the contamination was recognised, the state did three things the California record shows no sign of [A2, S-NSW-DIP]:

1. Built a public register of its ~1,600+ known dip sites, maintained by the Department of Primary Industries (a "Cattle Dip Site Locator").
2. Notes a former dip site on the property's planning certificate, the Section 10.7 certificate a buyer receives, so the site history travels with the land at sale.
3. Published residential clean-up guidelines (1996) for building on former dip sites, plus a waste-disposal pathway for dip soil (NSW EPA Approval 1999/03).

NSW can even state the uncomfortable number California cannot: of 254 demolished dip sites, it has recorded that 29 now have houses over them, a fact it can state only because it kept the list [A2]. The records survive because the network was government-owned.

71.4 California: ranch-run, never inventoried, and explicitly excluded today

California ran the quarantine but not the vats, and no dip-vat-specific measure has been located at any stage [B1 + absence]:

The sharpest point is the closest analog program. DTSC's Interim Guidance for Sampling Agricultural Properties (2008) targets land where chemicals were applied uniformly, orchards, row crops, and expressly excludes "pesticide mixing/loading areas … animal facilities … and other areas that may have been treated differently" [A2]. A cattle-dip vat is exactly that excluded point source. Where California does test former farm soil, the framework is built for the field-scale lead-arsenate signature, not the point-source white-arsenic dip signature.

71.5 Why the asymmetry: without any cover-up

The gap is ordinary, not a scandal. Four non-sinister reasons plausibly explain it [B1]:

• California's dipping ended ~1912, roughly 50 years before Florida's (1961), its vats were demolished and buried long before modern environmental law existed.
• California was a smaller, earlier, shorter theater than the Gulf South (the mass balance in chapter 72 implies ~50-150 vats, versus Florida's 3,000+).
• California's high natural background arsenic (~11-12 mg/kg) and its background-not-below policy lower the regulatory salience of diffuse arsenic.
• California's agricultural-soil attention went to orchard lead-arsenate and DDT, which its programs do address, not to the cattle dip.

None of these prove dip residues are absent. They explain only why a dedicated program was never built. The honest shape of the gap: a well-documented poison whose California sites were never written down, so a century later the general fact (printed by USDA in 1911) and the specific ground have no record connecting them. The same cheap act the overseas programs eventually performed closes it, a probe in the ground.

Verification limits (researcher-flagged): direct retrieval of the NSW and ITRC pages was bot-blocked during research, their figures are as reported by those pages; the NSW 1996 guideline PDF was not opened, so do not attribute a specific arsenic number to it; the s.10.7 exact wording was not retrieved (B2). California "not located" reflects searchable records plus Cloudflare-blocked agency pages; a direct records request to DTSC, the State Water Board, CDFA, and the Orange/San Diego County Agricultural Commissioners is the next evidence gate.

Source registry: S-UF-VATS [B2/A1], S-NSW-DIP [A2], S-ITRC-CDV [B1], S-USDA-C183 [A1], DTSC 2008 Interim Guidance [A2]. Full grading in chapter 73.