{
  "source": "Cooked Index — occupational AI risk register",
  "page": "https://cookedindex.com/jobs/septic-tank-servicers-and-sewer-pipe-cleaners/",
  "methodology": "https://cookedindex.com/methodology",
  "notice": "Verdicts are re-examined as evidence accumulates. Re-fetch before relying on this; the page above always carries the current score.",
  "scored_at": "2026-08-11",
  "model": "claude-opus-5",
  "occupation": {
    "title": "Septic Tank Servicers and Sewer Pipe Cleaners",
    "soc_code": "47-4071",
    "category": "Construction",
    "us_employment": 30650,
    "median_annual_wage": 49880
  },
  "verdict": "SAFE",
  "risk_resistance": 67,
  "contested": false,
  "near_boundary": true,
  "dimensions": {
    "task_resistance": 18,
    "embodiment": 20,
    "liability_shield": 9,
    "trust_premium": 10,
    "judgment_accountability": 10
  },
  "reasoning": {
    "task_resistance": "Locating a buried tank lid with a probe rod, breaking the seal, running a 4-inch suction hose while judging by sound and sight when the tank is drawn down, then feeding 200 feet of cable or jetter nozzle through a cleanout and feeling the resistance change at a root mass — these are tactile, one-off jobs on non-standard 1970s systems, which is why this sits at 18 rather than mid-band: only the dispatch, manifest, and CCTV write-up side gives.",
    "embodiment": "You are in the yard in February, on your knees in septage-soaked soil, sometimes entering a tank or manhole under OSHA 1910.146 confined-space permits with H2S and methane monitoring — nothing about the job happens anywhere but the uncontrolled physical site, so 20 is the ceiling and it belongs here.",
    "liability_shield": "Most states license the pumper business and require an operator certification (installer/pumper credentials, hauler permits, septage disposal manifests under state DEP rules) plus a CDL for the vacuum truck, but the personal exposure is the company's permit and the site inspector's sign-off rather than an individual seal like a PE or plumber's license carries — hence 9, above pure no-credential trades, below licensed professionals.",
    "trust_premium": "Homeowners call the outfit that pumped it three years ago and showed them the sludge depth instead of upselling, and municipal and property-management contracts recur on that basis, but the buying decision is still largely price and who answers the phone on a Sunday backup, which keeps this at 10 rather than in relationship-is-the-product territory.",
    "judgment_accountability": "You own real calls — whether effluent surfacing means a clogged filter or a dead drainfield, whether that line needs jetting or excavation, whether the gas readings mean nobody goes in — but pumping frequency, tank access, and disposal routing are set by code and standing procedure, so the discretion is episodic rather than the substance of the day."
  },
  "rationale": "The work is pumping tanks, running jetters and rodding machines down blocked laterals, hauling septage, and crawling into confined spaces in mud, weather, and homeowners' yards — none of which a language model touches and none of which current robotics handles at cost. AI does absorb the paperwork edge: route scheduling, septage manifests and disposal logs, camera-inspection reporting, and quoting. Judgment matters when calling a repair versus a replacement or spotting a failed drainfield, but most of the day is defined procedure under filthy conditions.",
  "outlook": "Demand tracks aging pipe and rural septic stock, so headcount holds; the money shifts from pumping toward licensed inspection and trenchless repair.",
  "what_would_raise_it": {
    "levers": [
      {
        "dimension": "liability_shield",
        "change": "Extension of point-of-sale / periodic septic inspection mandates on the Massachusetts Title 5 model (inspection report signed by a state-certified System Inspector, personally sanctionable for a false pass) to more states, or the pending state adoptions of EPA-encouraged mandatory operating permits for advanced treatment units requiring a licensed operator of record to certify each service visit. Watch also for state rules making the pumper the signatory legally responsible for septage manifest accuracy and land-application/disposal-site compliance, and for OSHA 1910.146 permit-required confined space enforcement forcing a named, qualified entry supervisor on manhole and tank entries.",
        "plausibility": "already happening",
        "would_add": 6
      },
      {
        "dimension": "judgment_accountability",
        "change": "If the failed-drainfield determination becomes the legally operative document that blocks a real estate closing or triggers a mandatory replacement order — as it does under Title 5 and in some county health codes — the servicer's call carries consequences the company is answerable for, rather than being an informal recommendation to a homeowner. Also raised where jurisdictions require a certified inspector's sign-off on I&I / lateral camera findings used in municipal sewer rehab decisions.",
        "plausibility": "plausible",
        "would_add": 4
      },
      {
        "dimension": "task_resistance",
        "change": "Task-mix shift is real but partial: this occupation has a routine tier (pump-and-go, scheduled grease trap and lift station service, straight jetting) and a thin judgment tier (diagnosing drainfield failure, distinguishing root intrusion from joint failure from bellied pipe on camera, sizing repair vs replacement). If AI-assisted camera interpretation and quoting absorb the reporting tier, the residual work is field diagnosis and physical intervention. This nudges upward at most slightly — the score is already 18 and the ceiling is the wrench-and-hose reality, not the paperwork.",
        "plausibility": "plausible",
        "would_add": 1
      },
      {
        "dimension": "trust_premium",
        "change": "Only narrow route: homeowner willingness to pay for a named certified inspector (NAWT-certified, or state System Inspector) rather than the cheapest pumper, in markets where the inspection gates a sale. This is credential premium, not human-vs-machine premium, and it applies to inspection work rather than pumping.",
        "plausibility": "plausible",
        "would_add": 2
      }
    ],
    "ceiling_note": "Embodiment is already maxed at 20 and cannot rise. The binding constraint on this occupation is not AI — it is route density, consolidation by private-equity-backed home services rollups, and municipal insourcing, none of which the register measures. Liability and accountability gains accrue to the certified-inspector role, which is a subset of these workers; a straight pump-truck operator sees little of it."
  },
  "adjudication": {
    "method": "two independent runs agreed on the verdict",
    "outcome": "corroborated",
    "run_totals": [
      67,
      68
    ],
    "run_verdicts": [
      "SAFE",
      "SAFE"
    ]
  },
  "employment_history": {
    "points": [
      {
        "y": 2017,
        "emp": 26250,
        "wage": 37950
      },
      {
        "y": 2018,
        "emp": 27090,
        "wage": 38970
      },
      {
        "y": 2019,
        "emp": 29750,
        "wage": 39870
      },
      {
        "y": 2020,
        "emp": 29880,
        "wage": 41120
      },
      {
        "y": 2021,
        "emp": 28620,
        "wage": 44810
      },
      {
        "y": 2022,
        "emp": 27660,
        "wage": 45610
      },
      {
        "y": 2023,
        "emp": 27900,
        "wage": 46910
      },
      {
        "y": 2024,
        "emp": 29050,
        "wage": 49140
      },
      {
        "y": 2025,
        "emp": 30650,
        "wage": 49880
      }
    ],
    "from": 2017,
    "to": 2025,
    "change_pct": 16.8,
    "comparable_from": 2019,
    "spans_soc_revision": true
  },
  "pivots": [],
  "license": "https://cookedindex.com/terms"
}