Drawdown

Lowell, MA

Markley Group – Lowell

Markley Group · Operating · 1 Markley Way

Massachusetts' largest data center (352,000 sq ft), operating in Lowell's Sacred Heart neighborhood since 2015. A 2025 MassDEP air-quality permit for 27 backup diesel generators and 16 cooling towers to support an AI-driven expansion drew a legal appeal and prompted the city's first data-center construction moratorium in March 2026. Water bills obtained by WBZ-TV in June 2026 show Markley reporting 60,000–120,000 gallons of water use per day over the prior year.

Estimated water use

Estimate

No published facility capacity (MW) is available yet. No estimate is shown without a published figure.

Lifecycle timeline

Observed

Confirmed events only, each with its source.

  1. ~January 2015

    Became operational

    Construction of the Lowell facility, now Massachusetts' largest data center, is completed and it begins operating.

    Source
  2. July 3, 2025

    Permit issued

    Massachusetts DEP approved Markley's air-quality plan to operate 27 diesel backup generators and 16 cooling towers to support an AI-driven expansion, without cumulative-impacts analysis or MEPA review.

    Source
  3. March 10, 2026

    Local opposition activity

    Lowell City Council adopted a temporary one-year moratorium on new data center construction and development by a 10-0 vote, the first such moratorium in Massachusetts, in response to community opposition to the Markley expansion.

    Source
  4. June 22, 2026

    Operator discloses actual water use via water bills

    Water bills obtained by WBZ-TV show Markley reporting 60,000-120,000 gallons of water use per day over the prior year -- a rare directly-disclosed usage figure rather than a modeled estimate. No facility-specific water source was stated in the report.

    Source

Observed hydrologic data

Observed

From nearby USGS and NOAA monitoring stations, refreshed monthly. Dashed lines mark lifecycle milestones.

Groundwater level (ft below surface)

2 stations, overlaid

Regulatory records

Observed

Water permits and environmental compliance records from MassDEP WMA permits and decisions and EPA ECHO.

No permit or compliance record from these sources currently matches this facility.

Drawdown story

Assessment

Is the water table's behavior near this facility consistent with its estimated draw — and how strong is the evidence? A fixed rubric, recomputed monthly; every number below is stored with the inputs that produced it. Method: attribution-v1.

  1. 1 · Pathway

    This facility is supplied by a public water system — its estimated draw lands on that system's sources, not this local water table.

  2. 2 · Detectability

    Expected drawdown at the nearest monitored well could not be computed (no water-use estimate is available).

  3. 3 · Signal

    No monitored well within 2 miles of this facility — there is no near-field record to compare against controls.

No local withdrawal pathway — estimated draw does not reach this water table directly.

Attribution evidence score: withheld · as of 2026-07-22 · attribution-v1

Estimate inputs uncertainNo water-use estimate available
Pathway0/35
Detectability0/15
Temporal signal0/30
Robustness0/20