Csquare SFO4

OSM way/1344376231 · operator tag: Csquare

WAPR is a public register of where AI computing physically sits. This page is one building that volunteers have mapped as a data centre — the map records what kind of building it is, not what runs inside it, so it may host AI, cloud or ordinary corporate servers. Everything below comes from OpenStreetMap, the volunteer-made public map, and is republished as recorded — including the operator tag, which is what mappers entered rather than a check of who runs the building today. Fields nobody recorded are shown as “not recorded”, never guessed. What WAPR is →

region: CA
address: 1550, Space Park Drive, Santa Clara
start date (OSM): not recorded
coordinates: 37.375835, -121.956262
OSM object: way/1344376231
OSM tag: telecom=data_center

feed checked 2026-11-01 09:17 UTC

This record is what OpenStreetMap contributors have mapped and tagged as a data centre — nothing more. WAPR republishes it verbatim with provenance; fields the mappers did not record are shown as such, never inferred.

WAPR id: WAPR-US-000570
campus: WAPR-US-000559 (derived grouping, 250 m)

What the public record says

feed checked 2026-09-14 05:15 UTC (oldest of 6 instruments)

how this is known

as old as the oldest of Mapped facilities, Interconnection facilities, Crane filings, Virginia regulated sites, Permitted water discharge, Generators at sites (EIA-860M/923)

Each line is a public document that marks a step in this site’s life — a rung, in the register’s terms — with its date and what kind of date it is: the document’s own, a state the record shows already held on that date, or the day WAPR first saw the record.

2026-09-15first seenmapped — OpenStreetMap object, first minted into the WAPR register

The register’s rungs are: mapped · listed in the network registry · crane notices filed beside it · on an air regulator's books · holds a discharge permit · generators recorded emitting · a generator within 250 m produced power · interconnection · operating load. Rungs not shown for this site are rungs no public document has put it on. Interconnection and operating load are never written until a primary record exists.

Where it sits

feed checked 2026-11-02 15:40 UTC data each map layer as its publisher served it when fetched, 2026-09-15 to 2026-11-01

retail utility territory: CITY OF SANTA CLARA - (CA) · municipalholding company (HOLDING_CO) SILICON VALLEY POWERcustomers (CUSTOMERS) 59,555layer vintage 2023-08
nearest transmission line of 230 kV or more: 5,057 m · 230 kV · PACIFIC GAS & ELECTRIC COMPANY
principal aquifer (regional aquifer system): California Coastal Basin Aquifers (Unconsolidated sand and gravel)
nearest named waterway: Saratoga Creek · 1,075 m

Sources

USGS Principal Aquifers of the United States (1:2,500,000) (US Government work, public domain) — regional aquifer system under the point — not site hydrogeology, not a statement that the site pumps
HIFLD Electric Power Transmission Lines (ORNL / DOE-CESER) (Public use (HIFLD Open))
HIFLD Electric Retail Service Territories, 2023-08 vintage (ORNL / DOE-CESER; per-polygon SOURCE = EIA-860/861 + the utility's filed map) (None (Public Use) per the item's licenceInfo) — served by the NTIA National Broadband Availability Map ArcGIS mirror; HIFLD retired the public layer in 2025
USGS National Hydrography Dataset, Flowline — Small Scale (layer 4), named features only (US Government work, public domain) — straight-line distance to the nearest NAMED stream or river; a reading beyond 30 km carries beyond_30km, and a site with none in the widest search carries no waterway

Straight-line joins to federal layers: HIFLD transmission and retail service territories (2023 vintage), USGS principal aquifers (1:2.5M), USGS NHD named flowlines. They say what surrounds the site, never what it draws, pumps or discharges. A territory says who sells retail power there; a line passing a site is not a line serving it.

Air permit

feed checked 2026-11-01 09:18 UTC data permit status as EPA's ECHO held it on 2026-11-01

No air-permit source within 500 m carries the data-centre sector code in ICIS-Air. WAPR reads only the ICIS-Air sources a state has coded NAICS 518210 or SIC 7374, so this is not proof the site has no permit.

Emissions on record

feed checked 2026-11-02 15:36 UTC data emissions in inventory year 2023 · ended 2023-12-31 fetched 2026-09-15

NEI 2023: 1500 SPACE PARK DRIVE LLC · PHOENIX DATA CENTER PARENT LLC: 0.5 t NOX · 0.05 t CO · 0 t PM25 · 0.03 t VOC · 0 t SO2 (distance 13 m)

Source

EPA National Emissions Inventory 2023 — point-source facility summary (EIS report 38234, 21 Jul 2026) (ZIP download) (EPA disclaimer — freely distributed for non-commercial, scientific and educational use; federal facts)

Tons per year accepted into EPA's National Emissions Inventory for the facility — the only national per-facility emissions number for the sector, only as complete as what each state submitted and WAPR's data-centre filter.

Not this site's records — within 500 m of it, not linked to it

EIS 9990911: EQUINIX LLC · within 168 m · credited to WAPR-US-000584
EIS 9991911: DIGITAL REALTY · within 205 m · credited to WAPR-US-000571
EIS 16069311: TATA COMMUNICATIONS [AMERICA] INC · within 210 m · credited to WAPR-US-000571
EIS 15974811: DIGITAL REALTY · within 227 m · credited to WAPR-US-000562
EIS 15974311: DIGITAL REALTY · within 259 m · credited to WAPR-US-000559
EIS 15974611: DIGITAL REALTY · within 274 m · credited to WAPR-US-000583
EIS 14253911: LEVEL 3 COMMUNICATIONS · within 287 m · credited to WAPR-US-000578
EIS 15728111: 1101 SPACE PARK PARTNERS LLC · within 301 m · credited to WAPR-US-000578
EIS 15743211: COMSTOCK DATA CENTER · within 384 m · credited to WAPR-US-000563

Water discharge

feed checked 2026-11-01 09:21 UTC data monitoring periods from 2025-10-31 to 2026-10-31 fetched 2026-11-01

No discharge permit coded to the data-centre sector within 500 m. Most cooling water leaves as vapour and to the sewer, not through an outfall, so a site with no discharge permit on record is not a site that uses no water.

Generators within 1 km (EIA)

feed checked 2026-11-02 15:40 UTC data generators as listed in EIA-860M for 2026-08; output from EIA-923 over the last 12 months EIA's data service returned for each plant, windows ending between 2022-12 and 2026-08 — each plant's months are printed on its row · ended 2026-08-31 fetch time not stated

plant 56026: Donald Von Raesfeld Power Plant · City of Santa Clara - (CA) · 3 generator(s) · Natural Gas Fired Combined Cycle · 154 MW nameplate · first operating 2005-03 · 929,552 MWh from 2025-09 to 2026-08 (capacity factor 0.689) · EIA plant (492 m)
plant 63705: EQX011 Duane Fuel Cell · 2016 ESA Project Company, LLC · 3 generator(s) · Other Natural Gas · 5.2 MW nameplate · first operating 2018-09 · 31,169 MWh from 2025-01 to 2025-12 (capacity factor 0.684) · EIA plant (283 m)

Sources

Form EIA-860M, monthly generator inventory (US Government work — public domain)
Form EIA-923, monthly net generation and fuel (US Government work — public domain)

Grid-connected generators of 1 MW or more within 1 km, from Form EIA-860M, with monthly output from Form EIA-923. Standby gensets that show 0 MWh did not run. Islanded plants are absent by rule — they are not obliged to file.

View on the Explorer globe View on OpenStreetMap Operator record