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Opathorlokan University · H. Splintons’ Field Notebook

SNF Custody Map

Where U.S. spent fuel physically sits — not where its reactor is. Zoom out for national totals; zoom in for sites.
Whose notebook is this
H. Splintons — Federal Nuclear Safety & Energy Oversight. Yes, that H. Splintons.
“Sippy cups on the desk, sure. Then you open the notebook expecting doodles — and find this.”
The cartoon’s on the cover. Everything inside is real — every pin a public record (sources below). People look at his pages and go: holy — dude, you’ve actually got this together.
Active tier
zoom < 5
Country
zoom ≥ 5
Site
Coverage
0
sites
0
located
0
awaiting
show sites awaiting coordinates
Not missing — identity confirmed, pin pending. These are real sites the public EIA-860 join doesn’t carry coordinates for (pre-2013 shutdowns, DOE / CISF / experimental). Hand-matched next.
What the colours mean
The dot’s fill answers one question: did the fuel stay where it was made, or did it move?
Stayed put — sits at the reactor that made it
Moved — shipped in from elsewhere, or shipped away
No reactor — a federal / consolidated store (DOE · CISF)
Empty — no spent fuel expected here
Ring = NRC roster status: green ring = a gap the roster missed · dashed ring = confirmed empty.
the trip the fuel took — made-here → sits-there (toggle below)
Display
Add a page to the notebook
Splintons’ field update. Got newer numbers? Drop your own sites.geojson here and the map redraws — stays on your screen only. Nothing uploaded, nothing shared, gone when you refresh.
68 of 90 sites carry verified coordinates from the EIA-860 join (public EIA plant data; the 6 review-flagged operating plants were hand-matched by state + nuclear identity). A few more show a labelled DEMO_APPROX seed; the rest aren’t in EIA-860 (pre-2013 shutdowns + DOE / CISF / experimental sites) and await manual coordinates.

Sources: site identity & flags from the v0.2 crosswalk spine; coordinates from EIA-860 (2013 + 2024); roster from NRC ML23165A245 (Jun 2023); national total from IAEA Global SNF Inventory (2025); tonnage target PNNL-33938.
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