Milliken Landfill
BrownfieldOrange County, California · CAISO
At a glance
Milliken Landfill is a brownfield datacenter candidate site in Orange County, California, scoring 53.4/100 DC Readiness — 50th of 190 scored sites in the county. Its nearest substation is FIREHOUSE (1 mi, 66 kV). It sits in the CAISO grid region and the SOUTHERN CALIFORNIA EDISON CO service territory, where interconnection has averaged 7.6 years from request to operation. GridCensus catalogs 3 MW of candidate capacity here.
Power & interconnection
Speed to power
Deep queue and long historical waits — plan for a multi-year interconnection timeline and engage the utility early.
Connectivity
Site characteristics
Risk & environment
Location context
Regulatory climate
No notable statewide DC restriction on record; confirm local zoning and utility tariffs.
Site location
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How does Milliken Landfill compare with other sites in Orange County?
Milliken Landfill ranks 50th of 190 scored candidate sites in Orange County. Its 53.4/100 is roughly in line with the county average of 51.6. It is about 18% above the California average of 45.4 and roughly in line with the national average of 53.2.
Against the California average, its strongest sub-score is water (53 vs 27) and its weakest is natural hazard (42 vs 51). Power and speed to power each carry 20% of the composite score, fiber 12%, water 7% and hazard 6%.
How close is Milliken Landfill to power, fiber and other datacenters?
The nearest mapped substation, FIREHOUSE, is about 1 miles away and operates at 66 kV. The nearest located transmission bottleneck is 24601_VICTOR _230_24085_LUGO _230_BR_4 _1 (CAISO), 30 miles away. For connectivity, the nearest internet exchange facility is Aecero - Orange County (SNA1) at 24.7 miles. 17 fiber providers report service at the location in FCC broadband data. The closest operating datacenter on record is IT, 10.7 miles away.
What are the flood, water and hazard risks at Milliken Landfill?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk). WRI rates baseline water stress at 3.80 on a 0–5 scale. No mapped wetlands are recorded on the parcel. A Superfund site is nearby (KAMP SYSTEMS INC). At the county level, FEMA's National Risk Index rates Orange County "Relatively High".
Full DC Readiness breakdown
All 13 weighted sub-scores (0–100) behind the composite DC Readiness score.
Nearby comparable sites
Other scored datacenter candidate sites in Orange County, ranked by DC Readiness.
| Site | Type | Voltage | Capacity | Queue wait | Score |
|---|---|---|---|---|---|
| INLAND EMPIRE | Substation-Adjacent | 500 kV | 1,000 MW | 7.6 yrs | 62.3 |
| VALLEY | Substation-Adjacent | 500 kV | 1,000 MW | 7.6 yrs | 62.3 |
| HUNTINGTON BEACH | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 61.0 |
| HAYNES | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 60.9 |
| SERRANO | Substation-Adjacent | 500 kV | 1,000 MW | 7.6 yrs | 60.8 |
| SAN BERNARDINO | Substation-Adjacent | 500 kV | 1,000 MW | 7.6 yrs | 60.2 |
| FUEL | Substation-Adjacent | 230 kV | 300 MW | 7.6 yrs | 59.8 |
| MIRA LOMA | Substation-Adjacent | 500 kV | 1,000 MW | 7.6 yrs | 59.2 |
Milliken Landfill: common questions
What is the DC Readiness score of Milliken Landfill?
Milliken Landfill scores 53.4/100 on the GridCensus DC Readiness scale, rated fair. It ranks 50th of 190 scored sites in Orange County. The Orange County average is 51.6 and the California average is 45.4.
What is the nearest substation to Milliken Landfill?
The nearest mapped substation is FIREHOUSE, about 1 miles away, at 66 kV. GridCensus catalogs 3 MW of candidate capacity for the site.
Which electric utility serves Milliken Landfill?
SOUTHERN CALIFORNIA EDISON CO (investor owned) holds the retail service territory that contains the site; its holding company is SOUTHERN CALIFORNIA EDISON.
What grid region is Milliken Landfill in?
Milliken Landfill is in the CAISO region. Projects interconnecting there have averaged a 7.6-year wait from queue request to operation.
Is Milliken Landfill in a flood zone?
The site is in FEMA flood zone X, outside the Special Flood Hazard Area (minimal or moderate flood risk).
How far is Milliken Landfill from an internet exchange?
The nearest internet exchange facility is Aecero - Orange County (SNA1), about 24.7 miles away; 17 fiber providers report service at the location.
Related pages
About this data
Source: GridCensus composite of HIFLD transmission and substation data, EIA, FEMA National Risk Index, FCC broadband data, PeeringDB and ISO interconnection queues, as published October 10, 2026 — GridCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: GridCensus, “Milliken Landfill, Orange County, CA”, https://gridcensus.com/datacenter-sites/california/orange-county/milliken-landfill-94684411 (data as of October 10, 2026).
Dataset updated . Screening estimates derived from public data sources.
Figures are screening estimates derived from public infrastructure data. Catalogued capacity reflects theoretical candidate capacity, not deliverable or committed interconnection. Confirm all values with the utility, ISO, and on-the-ground due diligence.
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