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Switch site 35 sites · 10 basins2 states Group by
OH Ohio 34
BOSC BOSC Lima Ottawa River · Lima, OH Building Under construction #1261 URB Urbana Mad River · Great Miami Live Investigating #1263 DEF Defiance Maumee mainstem Queued Investigating #1264 FIN Findlay Blanchard River Queued Investigating #1265 TOL Toledo Lucas Co WRRF Queued Investigating #1266 VWT Van Wert Town Creek · Little Auglaize Queued Investigating #1267 BRY Bryan Prairie Creek · Tiffin River Queued Investigating #1268 OTW Ottawa Blanchard River (lower) Queued Investigating #1269 SPR Springfield Mad River · Great Miami Queued Investigating #1270 XEN Xenia Little Miami Queued Investigating #1271 WPA Dayton · WPAFB Mad River · Great Miami Queued Investigating #1272 HAM Hamilton · Middletown Great Miami (lower) Queued Investigating #1273 TRP Troy · Piqua Great Miami (upper) Queued Investigating #1274 SID Sidney Great Miami · headwaters Queued Investigating #1275 GRV Greenville · Darke Co Stillwater · basin divide Queued Investigating #1276 WIL Wilmington Todd Fork · Little Miami Queued Investigating #1277 WUN West Union · Adams Co Ohio Brush Creek · Ohio River Queued Investigating #1278 NAL New Albany · Licking Scioto ↔ Muskingum divide Tracking Investigating #1279 COL Columbus Scioto · Olentangy Tracking Investigating #1280 CSH Coshocton Tuscarawas + Walhonding Tracking Investigating #1281 PIK Piketon Scioto River · PORTS Tracking Investigating #1282 SAN Sandusky · Perkins Twp Sandusky Bay · Lake Erie Tracking Investigating #1283 NWK Newark Licking River Tracking Investigating #1284 ZAN Zanesville Muskingum mainstem Tracking Investigating #1285 FRE Fremont · Clyde Lower Sandusky Tracking Investigating #1286 TIF Tiffin Sandusky (mid) Tracking Investigating #1287 BUC Bucyrus Sandusky headwaters Tracking Investigating #1288 CLE Cleveland Lower Cuyahoga Tracking Investigating #1289 AKR Akron Upper Cuyahoga · CVNP Tracking Investigating #1290 LRD Lordstown · Warren Upper Mahoning Tracking Investigating #1291 YNG Youngstown Mahoning mainstem Tracking Investigating #1292 LAN Lancaster Upper Hocking Tracking Investigating #1293 ATH Athens Lower Hocking Tracking Investigating #1294 LOG Logan Hocking Hills Tracking Investigating #1295
MAU Maumee Basin 8 sites
2MI The Two Miamis 9 sites
SE Southeastern Basins 10 sites
NE Northeast Basins 8 sites
Each site is a section of the Watermark platform — pivoted by basinstate. Live & building sites open; queued and tracking sites route to their coming-soon / watch page.
Switch site 35 sites · 10 basins2 states 35 open Group by

Each site is one Watermark investigation. The page color says what opens; the campus line is the build on the ground — two different clocks.

OH Ohio 34
BOSC BOSC Lima Ottawa River · Lima, OH Draft Under construction #1261 URB Urbana Mad River · Great Miami Open Investigating #1263 DEF Defiance Maumee mainstem Queued Investigating #1264 FIN Findlay Blanchard River Queued Investigating #1265 TOL Toledo Lucas Co WRRF Queued Investigating #1266 VWT Van Wert Town Creek · Little Auglaize Queued Investigating #1267 BRY Bryan Prairie Creek · Tiffin River Queued Investigating #1268 OTW Ottawa Blanchard River (lower) Queued Investigating #1269 SPR Springfield Mad River · Great Miami Queued Investigating #1270 XEN Xenia Little Miami Queued Investigating #1271 WPA Dayton · WPAFB Mad River · Great Miami Queued Investigating #1272 HAM Hamilton · Middletown Great Miami (lower) Queued Investigating #1273 TRP Troy · Piqua Great Miami (upper) Queued Investigating #1274 SID Sidney Great Miami · headwaters Queued Investigating #1275 GRV Greenville · Darke Co Stillwater · basin divide Queued Investigating #1276 WIL Wilmington Todd Fork · Little Miami Queued Investigating #1277 WUN West Union · Adams Co Ohio Brush Creek · Ohio River Queued Investigating #1278 NAL New Albany · Licking Scioto ↔ Muskingum divide Watching Investigating #1279 COL Columbus Scioto · Olentangy Watching Investigating #1280 CSH Coshocton Tuscarawas + Walhonding Watching Investigating #1281 PIK Piketon Scioto River · PORTS Watching Investigating #1282 SAN Sandusky · Perkins Twp Sandusky Bay · Lake Erie Watching Investigating #1283 NWK Newark Licking River Watching Investigating #1284 ZAN Zanesville Muskingum mainstem Watching Investigating #1285 FRE Fremont · Clyde Lower Sandusky Watching Investigating #1286 TIF Tiffin Sandusky (mid) Watching Investigating #1287 BUC Bucyrus Sandusky headwaters Watching Investigating #1288 CLE Cleveland Lower Cuyahoga Watching Investigating #1289 AKR Akron Upper Cuyahoga · CVNP Watching Investigating #1290 LRD Lordstown · Warren Upper Mahoning Watching Investigating #1291 YNG Youngstown Mahoning mainstem Watching Investigating #1292 LAN Lancaster Upper Hocking Watching Investigating #1293 ATH Athens Lower Hocking Watching Investigating #1294 LOG Logan Hocking Hills Watching Investigating #1295
MAU Maumee Basin 8 sites
2MI The Two Miamis 9 sites
SE Southeastern Basins 10 sites
NE Northeast Basins 8 sites
The page — what opens on Watermark Open · Draftfull record Queued · Watchingpreview page Restrictedrequest access
The campus — the build on the ground Investigating Confirmed Under construction Operational

The method

How we read the record

Watermark reconstructs a deliberately thin public record — across every site, across every domain — from primary documents and live public data into reviewed, cited, structured findings. This page explains the method once, for the whole network.

source structured read meaning verify

The evidence grammar

Every figure wears its standing

The tags below are fixed and never recolored. They are the whole trust model in one glance — before you read a number, you know what kind of number it is.

[verified]

Read from a cited record or a live source — confirmed and reproducible.

[inference]

A labelled reading or derivation from cited inputs — reasoning, not a record.

[reference]

An outside published specification or dataset — authoritative, but not a record about this site.

[open]

Withheld, unresolved, or not yet checked — a question, not a verdict.

~ A tilde before a figure marks it approximate — rounded or read from a range in the source, still tied to that source, never a false precision.

The pipeline

Ingest → extract → analyze

Figures are read from the 300 DPI scanned image, never the garbled OCR text layer — then checked against the layout a human would see.

01
Ingest

Primary documents enter as bytes: county recorder scans, OCR'd PDFs, live public-data feeds. Nothing is summarized before it's stored, and the source bytes are never altered.

02
Extract

A structured read is pulled from the 300 DPI page image — tables, figures, signatures, redaction bars — and logged against the exact page and coordinate it came from. The garbled OCR text layer is a hint only.

03
Analyze

The read is reconciled, labeled with its evidence tag, linked into the entity graph and timeline, and set beside its cited source. What isn't corroborated is published anyway, marked open.

Chain of custody

The corpus is treated as litigation evidence.

Immutable source bytes

The original scan or filing, hashed and stored exactly as received — never renamed or edited in place.

Reviewed extracted data

Every structured read is checked against its source page before it is published.

Regenerable reference datasets

Anything pulled from a live public feed can be re-run and re-verified at any time.

Across the network

Twelve domains, one grammar

Each domain reads its own kind of document or feed, but every one publishes through the same evidence grammar and the same chain of custody.

Document pipeline Every filing enters as bytes, then earns its structured read. County recorder scans · OCR'd PDFs · Native filings Hydrology Streamflow, precipitation and aquifer draw, read against the site's water ask. USGS NWIS · NOAA Atlas-14 · NASA POWER Economics Tax abatements, land assembly and shell-company cost, traced to public filings. BLS QCEW · Census ACS5 · EIA-861 Grid & regulatory Interconnection queues and utility filings, read for load and capacity signals. PJM · EIA-861 Facility compute Rack count and power draw, estimated from permits and equipment manifests. Facility permits · Vendor datasheets GIS & parcels Parcel assembly, zoning and easements, assembled into one site boundary. County parcels · Planetary Computer STAC · Committed GeoJSON Toxics & air permits Emissions and discharge permits, read against modeled exposure. Ohio EPA eSuite · EPA ECHO · EPA RSEI Civic records Meeting minutes, board votes and variances, read into the local record. CivicPlus Agenda Center · Municipal platform scrapers Entity graph & timeline Shells, subsidiaries and filings, linked into one entity graph over time. Recorder instruments · Secretary of State · GLEIF LEI Places Every site located inside its watershed, basin and jurisdiction. County parcels · USGS HUC · Curated POI store Research agent The retrieval and citation loop that keeps every figure traceable. Extracted corpus · In-process MCP tools Platform footprint The platform's own compute, power and water draw, published as a report. AWS Cost Explorer · Anthropic Admin · EPA eGRID

The method layer

Seven skills, one spine

Underneath every domain sits the same research agent, working through seven discoverable skills. Each hands its output to the next with the citation attached — nothing moves forward unlabeled.

That chain rests on the evidentiary-discipline spine: ingest immutably, extract legibly, analyze transparently, and never let a modeled figure travel without its tag. It's the same spine whether the domain is hydrology, the entity graph, or grid & regulatory — read each domain's page for how the spine bends to its own kind of source.

evidentiary-disciplineentity-and-document-deconstructiongis-and-siting-analysispublic-records-and-legal-strategyinvestigative-writing-and-editorialdata-center-sweepdocument-production-and-ocr