{"schema_version":1,"layer":"water","reviewed_on":"2026-10-27","coverage_note":"Selected state reporting laws and proposals, annual operator disclosures and construction dewatering permits. Withdrawal, consumption, discharge, supply allocations and forecasts are different measures. Coverage is incomplete.","items":[{"id":"water-md-fr2025g001","kind":"water_permit","state_codes":["md"],"subject":"Turner Construction Company construction dewatering permit","scope":"Selected Frederick County construction dewatering permit. Authorized daily averages are separate limits under this permit, not actual water use, operational cooling demand or cumulative campus totals.","fields":{"status":{"value":"permitted","source_ids":["md-water-fr2025g001-public-20261023"],"scope":"Dated issued appropriation permit, not a finding of actual withdrawal or current compliance.","locator":"PDF page2 permit heading and signed final permit page"},"permit":{"value":"FR2025G001(01)","source_ids":["md-water-fr2025g001-public-20261023"],"scope":"Applies to this permit version only. Later revisions, suspension or renewal are not established.","locator":"PDF page2 permit heading"},"permittee":{"value":"Turner Construction Company","source_ids":["md-water-fr2025g001-public-20261023"],"scope":"Applies to this permit version only. Later revisions, suspension or renewal are not established.","locator":"PDF page2 permit heading"},"effective_on":{"value":"2025-07-15","source_ids":["md-water-fr2025g001-public-20261023"],"scope":"Applies to this permit version only. Later revisions, suspension or renewal are not established.","locator":"PDF page2 permit heading"},"expires_on":{"value":"2028-06-30","source_ids":["md-water-fr2025g001-public-20261023"],"scope":"Applies to this permit version only. Later revisions, suspension or renewal are not established.","locator":"PDF page2 permit heading"},"annual_average_allocation":{"value":6000,"source_ids":["md-water-fr2025g001-public-20261023"],"scope":"Permitted daily average on a yearly basis. Allocation ceiling, not actual withdrawal or consumption.","locator":"PDF page2 condition1 first allocation line","unit":"gallons per day","measurement_role":"permitted_annual_average_withdrawal"},"maximum_month_average_allocation":{"value":12000,"source_ids":["md-water-fr2025g001-public-20261023"],"scope":"Permitted daily average for the month of maximum use. This is not a maximum single day or a second additive allocation.","locator":"PDF page2 condition1 second allocation line","unit":"gallons per day","measurement_role":"permitted_maximum_month_average_withdrawal"},"purpose":{"value":"Groundwater lowering for construction of stormwater utilities.","source_ids":["md-water-fr2025g001-public-20261023"],"scope":"Construction dewatering, not operational cooling supply or potable demand. No allocation total is combined across permits.","locator":"PDF page2 condition2"},"water_source":{"value":"Trenches in the New Oxford Formation.","source_ids":["md-water-fr2025g001-public-20261023"],"scope":"Specified groundwater source, not a documented quantity actually withdrawn.","locator":"PDF page2 condition3"},"location":{"value":"5601 Manor Woods Road, Frederick, Frederick County, Maryland.","source_ids":["md-water-fr2025g001-public-20261023"],"scope":"Permit withdrawal area. No individual operator or building identity is inferred from the campus address.","locator":"PDF page2 condition4"},"conditional_limits":{"value":"The administration may require reduced or stopped withdrawal during a drought or emergency. Anticipated changes in use, quantity, source or place require a new application.","source_ids":["md-water-fr2025g001-public-20261023"],"scope":"Conditional authority does not establish a restriction was imposed or a violation occurred.","locator":"PDF page3 conditions9 and11"},"initiation_condition":{"value":"Notify the administration by certified mail when withdrawals begin. The permit expires if withdrawal does not begin within two years after its effective date, unless a timely written request receives a discretionary extension.","source_ids":["md-water-fr2025g001-public-20261023"],"scope":"The source does not establish a start date or an extension. The stated June 30, 2028 expiration is subject to this separate initiation condition.","locator":"PDF page4 condition13"},"measurement_reporting":{"value":null,"source_ids":["md-water-fr2025g001-public-20261023"],"scope":"This captured permit has no separate flow measurement or semiannual withdrawal report condition. That does not establish the absence of duties under other authority or actual reporting.","locator":"All three permit pages reviewed","unknown_reason":"This captured permit has no separate flow measurement or semiannual withdrawal report condition. That does not establish the absence of duties under other authority or actual reporting."},"actual_withdrawal":{"value":null,"source_ids":["md-water-fr2025g001-public-20261023"],"scope":"No measured pumping records are included in this bounded source review. Unknown is not zero and permitted allocation is not measured use.","locator":"Review boundary","unknown_reason":"No measured pumping records are included in this bounded source review. Unknown is not zero and permitted allocation is not measured use."},"operational_cooling_use":{"value":null,"source_ids":["md-water-fr2025g001-public-20261023"],"scope":"These permits authorize construction dewatering. No operational cooling withdrawal or consumption is established.","locator":"Purpose condition and review boundary","unknown_reason":"These permits authorize construction dewatering. No operational cooling withdrawal or consumption is established."},"atlas_record_id":{"value":null,"source_ids":["md-water-fr2025g001-public-20261023"],"scope":"No exact individual Atlas building join reviewed. Campus and contractor naming are insufficient for an automatic join.","locator":"Review boundary","unknown_reason":"No exact individual Atlas building join reviewed. Campus and contractor naming are insufficient for an automatic join."}}},{"id":"water-md-fr2023g001","kind":"water_permit","state_codes":["md"],"subject":"Quantum Maryland, LLC construction dewatering permit","scope":"Selected Frederick County construction dewatering permit. Authorized daily averages are separate limits under this permit, not actual water use, operational cooling demand or cumulative campus totals.","fields":{"status":{"value":"permitted","source_ids":["md-water-fr2023g001-public-20261023"],"scope":"Dated issued appropriation permit, not a finding of actual withdrawal or current compliance.","locator":"PDF page2 permit heading and signed final permit page"},"permit":{"value":"FR2023G001(03)","source_ids":["md-water-fr2023g001-public-20261023"],"scope":"Applies to this permit version only. Later revisions, suspension or renewal are not established.","locator":"PDF page2 permit heading"},"permittee":{"value":"Quantum Maryland, LLC","source_ids":["md-water-fr2023g001-public-20261023"],"scope":"Applies to this permit version only. Later revisions, suspension or renewal are not established.","locator":"PDF page2 permit heading"},"effective_on":{"value":"2025-11-21","source_ids":["md-water-fr2023g001-public-20261023"],"scope":"Applies to this permit version only. Later revisions, suspension or renewal are not established.","locator":"PDF page2 permit heading"},"expires_on":{"value":"2028-10-31","source_ids":["md-water-fr2023g001-public-20261023"],"scope":"Applies to this permit version only. Later revisions, suspension or renewal are not established.","locator":"PDF page2 permit heading"},"annual_average_allocation":{"value":35000,"source_ids":["md-water-fr2023g001-public-20261023"],"scope":"Permitted daily average on a yearly basis. Allocation ceiling, not actual withdrawal or consumption.","locator":"PDF page2 condition1 first allocation line","unit":"gallons per day","measurement_role":"permitted_annual_average_withdrawal"},"maximum_month_average_allocation":{"value":100000,"source_ids":["md-water-fr2023g001-public-20261023"],"scope":"Permitted daily average for the month of maximum use. This is not a maximum single day or a second additive allocation.","locator":"PDF page2 condition1 second allocation line","unit":"gallons per day","measurement_role":"permitted_maximum_month_average_withdrawal"},"purpose":{"value":"Groundwater lowering for construction of stormwater management facilities, pump stations and wastewater, potable water and storm sewer utility lines.","source_ids":["md-water-fr2023g001-public-20261023"],"scope":"Construction dewatering, not operational cooling supply or potable demand. No allocation total is combined across permits.","locator":"PDF page2 condition2"},"water_source":{"value":"Trenches and other excavations in the Frederick Limestone.","source_ids":["md-water-fr2023g001-public-20261023"],"scope":"Specified groundwater source, not a documented quantity actually withdrawn.","locator":"PDF page2 condition3"},"location":{"value":"Former Alcoa Aluminum Works between New Design Road, Mountville Road, Manor Woods Road and Ballenger Creek Pike, Adamstown, Frederick County, Maryland.","source_ids":["md-water-fr2023g001-public-20261023"],"scope":"Permit withdrawal area. No individual operator or building identity is inferred from the campus address.","locator":"PDF page2 condition4"},"conditional_limits":{"value":"The administration may require reduced or stopped withdrawal during a drought or emergency. Anticipated changes in use, quantity, source or place require a new application.","source_ids":["md-water-fr2023g001-public-20261023"],"scope":"Conditional authority does not establish a restriction was imposed or a violation occurred.","locator":"PDF page3 conditions9 and11"},"measurement_reporting":{"value":"Measure all water used by a method reflecting the quantity withdrawn. Submit monthly pumping totals for July through December by January 31 and January through June by July 31.","source_ids":["md-water-fr2023g001-public-20261023"],"scope":"Permit reporting duties, not proof that reports were filed or their quantities.","locator":"PDF page3 condition13 and page4 condition14"},"well_protection":{"value":"If the administration determines unreasonable impacts to nearby users, bottled drinking water is required within 24 hours; other water supply and corrective measures may be required. For a lasting interruption a permanent replacement is required within a reasonable time, no more than 60 days. The permittee bears specified investigation and replacement expenses.","source_ids":["md-water-fr2023g001-public-20261023"],"scope":"Conditional protections, not a finding of an impacted well or a completed remedy.","locator":"PDF pages4 and5 conditions17 and18"},"supersedes":{"value":"This version supersedes FR2023G001(02), effective November 25, 2024. The first appropriation date is separately December 29, 2023.","source_ids":["md-water-fr2023g001-public-20261023"],"scope":"Prior permit version is not another additive current allocation. No prior version quantity is admitted.","locator":"PDF page5 condition19 and page2 heading"},"actual_withdrawal":{"value":null,"source_ids":["md-water-fr2023g001-public-20261023"],"scope":"No measured pumping records are included in this bounded source review. Unknown is not zero and permitted allocation is not measured use.","locator":"Review boundary","unknown_reason":"No measured pumping records are included in this bounded source review. Unknown is not zero and permitted allocation is not measured use."},"operational_cooling_use":{"value":null,"source_ids":["md-water-fr2023g001-public-20261023"],"scope":"These permits authorize construction dewatering. No operational cooling withdrawal or consumption is established.","locator":"Purpose condition and review boundary","unknown_reason":"These permits authorize construction dewatering. No operational cooling withdrawal or consumption is established."},"atlas_record_id":{"value":null,"source_ids":["md-water-fr2023g001-public-20261023"],"scope":"No exact individual Atlas building join reviewed. Campus and contractor naming are insufficient for an automatic join.","locator":"Review boundary","unknown_reason":"No exact individual Atlas building join reviewed. Campus and contractor naming are insufficient for an automatic join."}}},{"id":"water-thermoelectric-md-2015","kind":"water_context","subject":"Maryland historical thermoelectric water context","state_codes":["md"],"scope":"Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation.","fields":{"historical_thermo_withdrawal":{"value":5520.0,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12,printed43,physical51; Maryland row","scope":"Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation.","unit":"million gallons per day","measurement_role":"historical_estimated_withdrawal"},"historical_thermo_total_use":{"value":5520.0,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12,printed43,physical51; Maryland row","scope":"Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation.","unit":"million gallons per day","measurement_role":"historical_estimated_total_water_use"},"historical_thermo_consumptive_use":{"value":63.4,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12,printed43,physical51; Maryland row","scope":"Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation.","unit":"million gallons per day","measurement_role":"historical_estimated_consumption"},"status":{"value":"historical","source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12 header and notes; thermoelectric section printed42","scope":"Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation."},"report_period":{"value":"2015","source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12 header and notes; thermoelectric section printed42","scope":"Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation."},"historical_thermo_boundary":{"value":"Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation.","source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12 header and notes; thermoelectric section printed42","scope":"Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation."},"once_through_withdrawal":{"value":5500.0,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table13A,physical56,printed48; Maryland row","scope":"Historical2015 thermoelectric power cooling categories: once through and recirculating. These are power plant cooling estimates, not data center cooling technology or current facility use. Withdrawal, total water use including supplied and reclaimed water, and consumptive use remain distinct. Published zero differs from not estimated. Independently rounded cooling totals are not forced to equal Table12 totals; no facility or per kWh allocation.","unit":"million gallons per day","measurement_role":"historical_estimated_withdrawal"},"once_through_total_water_use":{"value":5500.0,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table13A,physical56,printed48; Maryland row","scope":"Historical2015 thermoelectric power cooling categories: once through and recirculating. These are power plant cooling estimates, not data center cooling technology or current facility use. Withdrawal, total water use including supplied and reclaimed water, and consumptive use remain distinct. Published zero differs from not estimated. Independently rounded cooling totals are not forced to equal Table12 totals; no facility or per kWh allocation.","unit":"million gallons per day","measurement_role":"historical_estimated_total_water_use"},"once_through_consumptive_use":{"value":55.0,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table13A,physical56,printed48; Maryland row","scope":"Historical2015 thermoelectric power cooling categories: once through and recirculating. These are power plant cooling estimates, not data center cooling technology or current facility use. Withdrawal, total water use including supplied and reclaimed water, and consumptive use remain distinct. Published zero differs from not estimated. Independently rounded cooling totals are not forced to equal Table12 totals; no facility or per kWh allocation.","unit":"million gallons per day","measurement_role":"historical_estimated_consumption"},"recirculating_withdrawal":{"value":12.1,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table13B,physical57,printed49; Maryland row","scope":"Historical2015 thermoelectric power cooling categories: once through and recirculating. These are power plant cooling estimates, not data center cooling technology or current facility use. Withdrawal, total water use including supplied and reclaimed water, and consumptive use remain distinct. Published zero differs from not estimated. Independently rounded cooling totals are not forced to equal Table12 totals; no facility or per kWh allocation.","unit":"million gallons per day","measurement_role":"historical_estimated_withdrawal"},"recirculating_total_water_use":{"value":12.1,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table13B,physical57,printed49; Maryland row","scope":"Historical2015 thermoelectric power cooling categories: once through and recirculating. These are power plant cooling estimates, not data center cooling technology or current facility use. Withdrawal, total water use including supplied and reclaimed water, and consumptive use remain distinct. Published zero differs from not estimated. Independently rounded cooling totals are not forced to equal Table12 totals; no facility or per kWh allocation.","unit":"million gallons per day","measurement_role":"historical_estimated_total_water_use"},"recirculating_consumptive_use":{"value":8.41,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table13B,physical57,printed49; Maryland row","scope":"Historical2015 thermoelectric power cooling categories: once through and recirculating. These are power plant cooling estimates, not data center cooling technology or current facility use. Withdrawal, total water use including supplied and reclaimed water, and consumptive use remain distinct. Published zero differs from not estimated. Independently rounded cooling totals are not forced to equal Table12 totals; no facility or per kWh allocation.","unit":"million gallons per day","measurement_role":"historical_estimated_consumption"},"cooling_category_boundary":{"value":"Historical2015 thermoelectric power cooling categories: once through and recirculating. These are power plant cooling estimates, not data center cooling technology or current facility use. Withdrawal, total water use including supplied and reclaimed water, and consumptive use remain distinct. Published zero differs from not estimated. Independently rounded cooling totals are not forced to equal Table12 totals; no facility or per kWh allocation.","source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Tables13A and13B headers and notes","scope":"Historical2015 thermoelectric power cooling categories: once through and recirculating. These are power plant cooling estimates, not data center cooling technology or current facility use. Withdrawal, total water use including supplied and reclaimed water, and consumptive use remain distinct. Published zero differs from not estimated. Independently rounded cooling totals are not forced to equal Table12 totals; no facility or per kWh allocation."},"historical_thermo_fresh_withdrawal":{"value":220.0,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12,physical51,printed43; Maryland row","scope":"Historical 2015 thermoelectric power water quality categories, fresh and saline. These are not potable water classifications, current data center use or municipal drinking water allocations. Withdrawal differs from consumptive use; supplied and reclaimed water contributions retain their separate definitions. Independently rounded fresh and saline values are not forced to equal the published total. No facility or per kWh attribution.","unit":"million gallons per day","measurement_role":"historical_estimated_freshwater_withdrawal"},"historical_thermo_saline_withdrawal":{"value":5300.0,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12,physical51,printed43; Maryland row","scope":"Historical 2015 thermoelectric power water quality categories, fresh and saline. These are not potable water classifications, current data center use or municipal drinking water allocations. Withdrawal differs from consumptive use; supplied and reclaimed water contributions retain their separate definitions. Independently rounded fresh and saline values are not forced to equal the published total. No facility or per kWh attribution.","unit":"million gallons per day","measurement_role":"historical_estimated_saline_withdrawal"},"historical_thermo_fresh_consumptive_use":{"value":2.29,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12,physical51,printed43; Maryland row","scope":"Historical 2015 thermoelectric power water quality categories, fresh and saline. These are not potable water classifications, current data center use or municipal drinking water allocations. Withdrawal differs from consumptive use; supplied and reclaimed water contributions retain their separate definitions. Independently rounded fresh and saline values are not forced to equal the published total. No facility or per kWh attribution.","unit":"million gallons per day","measurement_role":"historical_estimated_freshwater_consumption"},"historical_thermo_saline_consumptive_use":{"value":61.2,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12,physical51,printed43; Maryland row","scope":"Historical 2015 thermoelectric power water quality categories, fresh and saline. These are not potable water classifications, current data center use or municipal drinking water allocations. Withdrawal differs from consumptive use; supplied and reclaimed water contributions retain their separate definitions. Independently rounded fresh and saline values are not forced to equal the published total. No facility or per kWh attribution.","unit":"million gallons per day","measurement_role":"historical_estimated_saline_consumption"},"historical_water_quality_boundary":{"value":"Historical 2015 thermoelectric power water quality categories, fresh and saline. These are not potable water classifications, current data center use or municipal drinking water allocations. Withdrawal differs from consumptive use; supplied and reclaimed water contributions retain their separate definitions. Independently rounded fresh and saline values are not forced to equal the published total. No facility or per kWh attribution.","source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12 headers and notes","scope":"Historical 2015 thermoelectric power water quality categories, fresh and saline. These are not potable water classifications, current data center use or municipal drinking water allocations. Withdrawal differs from consumptive use; supplied and reclaimed water contributions retain their separate definitions. Independently rounded fresh and saline values are not forced to equal the published total. No facility or per kWh attribution."},"historical_thermo_ground_fresh_withdrawal":{"value":2.3,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12,physical51,printed43; Maryland row","scope":"Historical 2015 thermoelectric power withdrawals by groundwater and surface water, each separated into fresh and saline. These are state power generation estimates, not current data center water demand, aquifer stress, potable supply, permits or facility allocations. Withdrawal is not consumption. Independently rounded components are not forced to equal published totals; no facility or per kWh attribution.","unit":"million gallons per day","measurement_role":"historical_estimated_groundwater_fresh_withdrawal"},"historical_thermo_ground_saline_withdrawal":{"value":0.0,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12,physical51,printed43; Maryland row","scope":"Historical 2015 thermoelectric power withdrawals by groundwater and surface water, each separated into fresh and saline. These are state power generation estimates, not current data center water demand, aquifer stress, potable supply, permits or facility allocations. Withdrawal is not consumption. Independently rounded components are not forced to equal published totals; no facility or per kWh attribution.","unit":"million gallons per day","measurement_role":"historical_estimated_groundwater_saline_withdrawal"},"historical_thermo_surface_fresh_withdrawal":{"value":218.0,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12,physical51,printed43; Maryland row","scope":"Historical 2015 thermoelectric power withdrawals by groundwater and surface water, each separated into fresh and saline. These are state power generation estimates, not current data center water demand, aquifer stress, potable supply, permits or facility allocations. Withdrawal is not consumption. Independently rounded components are not forced to equal published totals; no facility or per kWh attribution.","unit":"million gallons per day","measurement_role":"historical_estimated_surfacewater_fresh_withdrawal"},"historical_thermo_surface_saline_withdrawal":{"value":5300.0,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12,physical51,printed43; Maryland row","scope":"Historical 2015 thermoelectric power withdrawals by groundwater and surface water, each separated into fresh and saline. These are state power generation estimates, not current data center water demand, aquifer stress, potable supply, permits or facility allocations. Withdrawal is not consumption. Independently rounded components are not forced to equal published totals; no facility or per kWh attribution.","unit":"million gallons per day","measurement_role":"historical_estimated_surfacewater_saline_withdrawal"},"historical_water_origin_boundary":{"value":"Historical 2015 thermoelectric power withdrawals by groundwater and surface water, each separated into fresh and saline. These are state power generation estimates, not current data center water demand, aquifer stress, potable supply, permits or facility allocations. Withdrawal is not consumption. Independently rounded components are not forced to equal published totals; no facility or per kWh attribution.","source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12 groundwater and surface water headers and notes","scope":"Historical 2015 thermoelectric power withdrawals by groundwater and surface water, each separated into fresh and saline. These are state power generation estimates, not current data center water demand, aquifer stress, potable supply, permits or facility allocations. Withdrawal is not consumption. Independently rounded components are not forced to equal published totals; no facility or per kWh attribution."},"historical_thermo_reclaimed_water":{"value":null,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12,physical51,printed43; Maryland row","scope":"Historical 2015 thermoelectric power reclaimed wastewater and freshwater public supply deliveries, in million gallons per day. These inputs differ from direct withdrawals and consumptive use. A source dash means not estimated, not zero or no use; published zeros remain zero. No current data center use, potable quality certification, local supply allocation, permit, facility or per kWh inference. Independently rounded values are not forced to balance.","unit":"million gallons per day","measurement_role":"historical_estimated_reclaimed_wastewater","unknown_reason":"USGS Table12 reports a dash, defined as not estimated; no zero or absence inferred."},"historical_thermo_public_supply_deliveries":{"value":null,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12,physical51,printed43; Maryland row","scope":"Historical 2015 thermoelectric power reclaimed wastewater and freshwater public supply deliveries, in million gallons per day. These inputs differ from direct withdrawals and consumptive use. A source dash means not estimated, not zero or no use; published zeros remain zero. No current data center use, potable quality certification, local supply allocation, permit, facility or per kWh inference. Independently rounded values are not forced to balance.","unit":"million gallons per day","measurement_role":"historical_estimated_public_supply_delivery","unknown_reason":"USGS Table12 reports a dash, defined as not estimated; no zero or absence inferred."},"historical_water_delivery_boundary":{"value":"Historical 2015 thermoelectric power reclaimed wastewater and freshwater public supply deliveries, in million gallons per day. These inputs differ from direct withdrawals and consumptive use. A source dash means not estimated, not zero or no use; published zeros remain zero. No current data center use, potable quality certification, local supply allocation, permit, facility or per kWh inference. Independently rounded values are not forced to balance.","source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12 reclaimed wastewater/public supply headers and dash definition","scope":"Historical 2015 thermoelectric power reclaimed wastewater and freshwater public supply deliveries, in million gallons per day. These inputs differ from direct withdrawals and consumptive use. A source dash means not estimated, not zero or no use; published zeros remain zero. No current data center use, potable quality certification, local supply allocation, permit, facility or per kWh inference. Independently rounded values are not forced to balance."},"historical_thermo_net_generation":{"value":30700.0,"source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12,physical51,printed43; Maryland row","scope":"Historical 2015 net thermoelectric power generated in gigawatt hours, from the same USGS state table as water estimates. Net generation is energy, not installed capacity, peak load, gross generation, electricity sales or data center electricity use. No current-year, facility, water intensity or per kWh allocation inferred; independently rounded source values retained.","unit":"GWh","measurement_role":"historical_net_thermoelectric_generation"},"historical_generation_boundary":{"value":"Historical 2015 net thermoelectric power generated in gigawatt hours, from the same USGS state table as water estimates. Net generation is energy, not installed capacity, peak load, gross generation, electricity sales or data center electricity use. No current-year, facility, water intensity or per kWh allocation inferred; independently rounded source values retained.","source_ids":["usgs-thermoelectric-2015-circular1441"],"locator":"Table12 net power generated header, gigawatt hours","scope":"Historical 2015 net thermoelectric power generated in gigawatt hours, from the same USGS state table as water estimates. Net generation is energy, not installed capacity, peak load, gross generation, electricity sales or data center electricity use. No current-year, facility, water intensity or per kWh allocation inferred; independently rounded source values retained."}}},{"id":"water-thermoelectric-model-2020-md","kind":"water_context","subject":"Maryland historical2020 modeled thermoelectric water context","state_codes":["md"],"scope":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","fields":{"status":{"value":"historical","source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","locator":"Annual output YEAR2020 and model provenance"},"thermo2020_period":{"value":"2020","source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","locator":"Annual CSV YEAR column"},"thermo2020_basis":{"value":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","locator":"Published annual CSV/attribute definitions/catalog model limitations"},"thermo2020_model_rows":{"value":13,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","locator":"Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval","unit":"plant-year rows","measurement_role":"calculated_count_model_plant_year_rows"},"thermo2020_consumption_modeled_rows":{"value":10,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","locator":"Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval","unit":"plant-year rows","measurement_role":"calculated_count_modeled_consumption_rows"},"thermo2020_saline_consumption_unmodeled_rows":{"value":3,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","locator":"Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval","unit":"plant-year rows","measurement_role":"calculated_count_saline_consumption_unmodeled_rows"},"thermo2020_withdrawal_sum":{"value":1819.116170911938,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","locator":"Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval","unit":"million gallons per day","measurement_role":"calculated_sum_model_withdrawal"},"thermo2020_withdrawal_lower_sum":{"value":830.7763938729638,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","locator":"Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval","unit":"million gallons per day","measurement_role":"calculated_sum_withdrawal_lower_plausibility_limits"},"thermo2020_withdrawal_upper_sum":{"value":13481.314773223876,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","locator":"Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval","unit":"million gallons per day","measurement_role":"calculated_sum_withdrawal_upper_plausibility_limits"},"thermo2020_consumption_available_sum":{"value":8.004208143877694,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","locator":"Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval","unit":"million gallons per day","measurement_role":"calculated_sum_available_model_consumption"},"thermo2020_consumption_lower_available_sum":{"value":6.548304108385876,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","locator":"Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval","unit":"million gallons per day","measurement_role":"calculated_sum_consumption_lower_plausibility_limits"},"thermo2020_consumption_upper_available_sum":{"value":9.46011217936949,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","locator":"Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval","unit":"million gallons per day","measurement_role":"calculated_sum_consumption_upper_plausibility_limits"},"thermo2020_cooling_basis":{"value":"Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation.","source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation.","locator":"Annual YEAR2020 CSV coolingType and metadata coolingType domain definitions"},"thermo2020_cooling_tower_rows":{"value":7,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation.","locator":"Calculated count of MD YEAR2020 rows with exact coolingType=Recirculating Tower","unit":"plant-year rows","measurement_role":"calculated_count_model_cooling_category_rows"},"thermo2020_cooling_tower_withdrawal":{"value":10.051506991914808,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation.","locator":"Calculated sum of wd_mgd for MD YEAR2020 exact coolingType=Recirculating Tower","unit":"million gallons per day","measurement_role":"calculated_sum_model_cooling_category_withdrawal"},"thermo2020_cooling_once_fresh_rows":{"value":2,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation.","locator":"Calculated count of MD YEAR2020 rows with exact coolingType=Once-through fresh","unit":"plant-year rows","measurement_role":"calculated_count_model_cooling_category_rows"},"thermo2020_cooling_once_fresh_withdrawal":{"value":42.2839834485007,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation.","locator":"Calculated sum of wd_mgd for MD YEAR2020 exact coolingType=Once-through fresh","unit":"million gallons per day","measurement_role":"calculated_sum_model_cooling_category_withdrawal"},"thermo2020_cooling_complex_rows":{"value":1,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation.","locator":"Calculated count of MD YEAR2020 rows with exact coolingType=Complex","unit":"plant-year rows","measurement_role":"calculated_count_model_cooling_category_rows"},"thermo2020_cooling_complex_withdrawal":{"value":22.5566128339489,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation.","locator":"Calculated sum of wd_mgd for MD YEAR2020 exact coolingType=Complex","unit":"million gallons per day","measurement_role":"calculated_sum_model_cooling_category_withdrawal"},"thermo2020_cooling_once_saline_rows":{"value":3,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation.","locator":"Calculated count of MD YEAR2020 rows with exact coolingType=Once-through saline","unit":"plant-year rows","measurement_role":"calculated_count_model_cooling_category_rows"},"thermo2020_cooling_once_saline_withdrawal":{"value":1744.2240676375736,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation.","locator":"Calculated sum of wd_mgd for MD YEAR2020 exact coolingType=Once-through saline","unit":"million gallons per day","measurement_role":"calculated_sum_model_cooling_category_withdrawal"},"thermo2020_cooling_pond_rows":{"value":0,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation.","locator":"Calculated count of MD YEAR2020 rows with exact coolingType=Recirculating pond","unit":"plant-year rows","measurement_role":"calculated_count_model_cooling_category_rows"},"thermo2020_cooling_pond_withdrawal":{"value":0.0,"source_ids":["usgs-thermo2020-annual-member","usgs-thermo-reanalysis-attribute-definitions","usgs-thermo-reanalysis-catalog"],"scope":"Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation.","locator":"Calculated sum of wd_mgd for MD YEAR2020 exact coolingType=Recirculating pond","unit":"million gallons per day","measurement_role":"calculated_sum_model_cooling_category_withdrawal"}}}],"sources":{"md-water-fr2025g001-public-20261023":{"url":"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf","title":"FR2025G001(01) construction dewatering appropriation permit","publisher":"Maryland Department of the Environment","published_on":"2025-07-15","date_note":"Dated signed permit version. The Quantum transmittal is dated November 19, 2025, while its signed permit and effective date are November 21. The URL parenthetical is not the permit revision number.","checked_at":"2026-10-23T16:19:03.373755+00:00","sha256":"121f58b4ad51f37a9592896457cdc6fd66f3c6195880b32288641a1ee0cc1fa9","scope":"Construction dewatering allocation and conditions only. No measured withdrawal, cooling demand, permit compliance or individual Atlas building match established.","tier":"A","establishes_status":["permitted"]},"md-water-fr2023g001-public-20261023":{"url":"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf","title":"FR2023G001(03) construction dewatering appropriation permit","publisher":"Maryland Department of the Environment","published_on":"2025-11-21","date_note":"Dated signed permit version. The Quantum transmittal is dated November 19, 2025, while its signed permit and effective date are November 21. The URL parenthetical is not the permit revision number.","checked_at":"2026-10-23T16:19:03.854409+00:00","sha256":"864fd0111dbd5a0b0387f64281c8a811683e2f14cfac1460c277c38c1d741da0","scope":"Construction dewatering allocation and conditions only. No measured withdrawal, cooling demand, permit compliance or individual Atlas building match established.","tier":"A","establishes_status":["permitted"]},"usgs-thermoelectric-2015-circular1441":{"url":"https://pubs.usgs.gov/circ/1441/circ1441.pdf","title":"USGS Circular1441 Tables12,13A,13B historical thermoelectric water2015","publisher":"U.S. Geological Survey","published_on":null,"date_note":"Report explicitly2018, exact publication day not established from reviewed pages. Estimates represent2015, not capture2026.","scope":"Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation.","checked_at":"2026-10-26T16:26:24.100526+00:00","sha256":"ef0e2caa3bd7769fde0de383f6668ba2559d8b716a38bfec6bed027729061f88","tier":"A","establishes_status":["historical"],"reviewed_cooling_pages":[{"physical_page":56,"printed_page":48,"actually_viewed":true,"image_path":"/Users/shaunwilson/Documents/Data Centers Atlas/build/cache/layers-20261024/usgs-water2015-cooling-56.png","image_sha256":"2679f353db6b2f6ecf3949271cdc27ee7a233e3a481ec48e634b455476967992","whole_report_read":false},{"physical_page":57,"printed_page":49,"actually_viewed":true,"image_path":"/Users/shaunwilson/Documents/Data Centers Atlas/build/cache/layers-20261024/usgs-water2015-cooling-57.png","image_sha256":"91b53a88319f53e4aaf723464e70bccb80da89f237483345d7433dfd3de7a635","whole_report_read":false}]},"usgs-thermo2020-annual-member":{"url":"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443","title":"Published annual thermoelectric water model output2008-2020;2020 selection","publisher":"U.S. Geological Survey","published_on":"2023-10-31","date_note":"Catalog dataset publication2023-10-31;individual metadata revision day not established.","scope":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","checked_at":"2026-10-27T22:08:53.974305+00:00","sha256":"f19e1026cf5379a2d47a27412834365742f8b6b59aa9aeb8692543dcf18c7664","raw_path":"/Users/shaunwilson/Documents/Data Centers Atlas/build/cache/layers-20261023/usgs-thermo-reanalysis-published-annual.csv","tier":"A","establishes_status":["historical"],"member":"4_model_results/published_annual_thermoelectric_water_use_estimates_2008-2020.csv","member_crc32":4031126398,"container_sha256":"2c365899da6a8016aa6da39265eeea0e7b4555dcd3f8b8fcf3c05b181409d54c","container_bytes":681440737,"container_raw_path":"/Users/shaunwilson/Documents/Data Centers Atlas/build/cache/layers-20261023/usgs-galanter2023-published-archive.zip"},"usgs-thermo-reanalysis-attribute-definitions":{"url":"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02","title":"Annual thermoelectric model attribute definitions","publisher":"U.S. Geological Survey","published_on":null,"date_note":"Catalog dataset publication2023-10-31;individual metadata revision day not established.","scope":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","checked_at":"2026-10-27T22:10:39.568488+00:00","sha256":"da1a426d2920c63a91a66ac5c45cc21541d8f0fb807275491570c49f9356dda3","raw_path":"/Users/shaunwilson/Documents/Data Centers Atlas/build/cache/layers-20261023/usgs-thermo-reanalysis-attributes-20261027.bin","tier":"A","establishes_status":["historical"]},"usgs-thermo-reanalysis-catalog":{"url":"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json","title":"Thermoelectric reanalysis2008-2020 catalog and limitations","publisher":"U.S. Geological Survey","published_on":null,"date_note":"Catalog dataset publication2023-10-31;individual metadata revision day not established.","scope":"USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.","checked_at":"2026-10-27T22:05:54.160633+00:00","sha256":"782d5e88048b3a7d076539539a78a4beb382d5891ae5fa84f77d87fcdd5d5cc1","raw_path":"/Users/shaunwilson/Documents/Data Centers Atlas/build/cache/layers-20261023/usgs-thermo-reanalysis-catalog-json-20261027.bin","tier":"A","establishes_status":["historical"]}},"details":[{"id":"water-md-fr2025g001","html":"<article><h3>Turner Construction Company construction dewatering permit</h3><p class=\"layer-scope\">Selected Frederick County construction dewatering permit. Authorized daily averages are separate limits under this permit, not actual water use, operational cooling demand or cumulative campus totals.</p><dl class=\"layer-fields\"><dt>Status</dt><dd>permitted<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: July 15, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Dated issued appropriation permit, not a finding of actual withdrawal or current compliance. Locator: PDF page2 permit heading and signed final permit page.</p></dd><dt>Permit</dt><dd>FR2025G001(01)<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: July 15, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Applies to this permit version only. Later revisions, suspension or renewal are not established. Locator: PDF page2 permit heading.</p></dd><dt>Permittee</dt><dd>Turner Construction Company<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: July 15, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Applies to this permit version only. Later revisions, suspension or renewal are not established. Locator: PDF page2 permit heading.</p></dd><dt>Effective on</dt><dd>July 15, 2025<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: July 15, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Applies to this permit version only. Later revisions, suspension or renewal are not established. Locator: PDF page2 permit heading.</p></dd><dt>Expires on</dt><dd>June 30, 2028<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: July 15, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Applies to this permit version only. Later revisions, suspension or renewal are not established. Locator: PDF page2 permit heading.</p></dd><dt>Annual average allocation</dt><dd>6,000 gallons per day<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: July 15, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Permitted daily average on a yearly basis. Allocation ceiling, not actual withdrawal or consumption. Locator: PDF page2 condition1 first allocation line.</p></dd><dt>Maximum month average allocation</dt><dd>12,000 gallons per day<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: July 15, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Permitted daily average for the month of maximum use. This is not a maximum single day or a second additive allocation. Locator: PDF page2 condition1 second allocation line.</p></dd><dt>Purpose</dt><dd>Groundwater lowering for construction of stormwater utilities.<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: July 15, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Construction dewatering, not operational cooling supply or potable demand. No allocation total is combined across permits. Locator: PDF page2 condition2.</p></dd><dt>Water source</dt><dd>Trenches in the New Oxford Formation.<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: July 15, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Specified groundwater source, not a documented quantity actually withdrawn. Locator: PDF page2 condition3.</p></dd><dt>Location</dt><dd>5601 Manor Woods Road, Frederick, Frederick County, Maryland.<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: July 15, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Permit withdrawal area. No individual operator or building identity is inferred from the campus address. Locator: PDF page2 condition4.</p></dd><dt>Conditional limits</dt><dd>The administration may require reduced or stopped withdrawal during a drought or emergency. Anticipated changes in use, quantity, source or place require a new application.<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: July 15, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Conditional authority does not establish a restriction was imposed or a violation occurred. Locator: PDF page3 conditions9 and11.</p></dd><dt>Initiation condition</dt><dd>Notify the administration by certified mail when withdrawals begin. The permit expires if withdrawal does not begin within two years after its effective date, unless a timely written request receives a discretionary extension.<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: July 15, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">The source does not establish a start date or an extension. The stated June 30, 2028 expiration is subject to this separate initiation condition. Locator: PDF page4 condition13.</p></dd><dt>Measurement reporting</dt><dd><span class=\"layer-empty\">Not established</span><span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: July 15, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">This captured permit has no separate flow measurement or semiannual withdrawal report condition. That does not establish the absence of duties under other authority or actual reporting. Locator: All three permit pages reviewed.</p></dd><dt>Actual withdrawal</dt><dd><span class=\"layer-empty\">Not established</span><span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: July 15, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">No measured pumping records are included in this bounded source review. Unknown is not zero and permitted allocation is not measured use. Locator: Review boundary.</p></dd><dt>Operational cooling use</dt><dd><span class=\"layer-empty\">Not established</span><span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: July 15, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">These permits authorize construction dewatering. No operational cooling withdrawal or consumption is established. Locator: Purpose condition and review boundary.</p></dd><dt>Atlas record id</dt><dd><span class=\"layer-empty\">Not established</span><span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2025G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: July 15, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">No exact individual Atlas building join reviewed. Campus and contractor naming are insufficient for an automatic join. Locator: Review boundary.</p></dd></dl></article>"},{"id":"water-md-fr2023g001","html":"<article><h3>Quantum Maryland, LLC construction dewatering permit</h3><p class=\"layer-scope\">Selected Frederick County construction dewatering permit. Authorized daily averages are separate limits under this permit, not actual water use, operational cooling demand or cumulative campus totals.</p><dl class=\"layer-fields\"><dt>Status</dt><dd>permitted<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Dated issued appropriation permit, not a finding of actual withdrawal or current compliance. Locator: PDF page2 permit heading and signed final permit page.</p></dd><dt>Permit</dt><dd>FR2023G001(03)<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Applies to this permit version only. Later revisions, suspension or renewal are not established. Locator: PDF page2 permit heading.</p></dd><dt>Permittee</dt><dd>Quantum Maryland, LLC<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Applies to this permit version only. Later revisions, suspension or renewal are not established. Locator: PDF page2 permit heading.</p></dd><dt>Effective on</dt><dd>November 21, 2025<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Applies to this permit version only. Later revisions, suspension or renewal are not established. Locator: PDF page2 permit heading.</p></dd><dt>Expires on</dt><dd>October 31, 2028<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Applies to this permit version only. Later revisions, suspension or renewal are not established. Locator: PDF page2 permit heading.</p></dd><dt>Annual average allocation</dt><dd>35,000 gallons per day<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Permitted daily average on a yearly basis. Allocation ceiling, not actual withdrawal or consumption. Locator: PDF page2 condition1 first allocation line.</p></dd><dt>Maximum month average allocation</dt><dd>100,000 gallons per day<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Permitted daily average for the month of maximum use. This is not a maximum single day or a second additive allocation. Locator: PDF page2 condition1 second allocation line.</p></dd><dt>Purpose</dt><dd>Groundwater lowering for construction of stormwater management facilities, pump stations and wastewater, potable water and storm sewer utility lines.<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Construction dewatering, not operational cooling supply or potable demand. No allocation total is combined across permits. Locator: PDF page2 condition2.</p></dd><dt>Water source</dt><dd>Trenches and other excavations in the Frederick Limestone.<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Specified groundwater source, not a documented quantity actually withdrawn. Locator: PDF page2 condition3.</p></dd><dt>Location</dt><dd>Former Alcoa Aluminum Works between New Design Road, Mountville Road, Manor Woods Road and Ballenger Creek Pike, Adamstown, Frederick County, Maryland.<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Permit withdrawal area. No individual operator or building identity is inferred from the campus address. Locator: PDF page2 condition4.</p></dd><dt>Conditional limits</dt><dd>The administration may require reduced or stopped withdrawal during a drought or emergency. Anticipated changes in use, quantity, source or place require a new application.<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Conditional authority does not establish a restriction was imposed or a violation occurred. Locator: PDF page3 conditions9 and11.</p></dd><dt>Measurement reporting</dt><dd>Measure all water used by a method reflecting the quantity withdrawn. Submit monthly pumping totals for July through December by January 31 and January through June by July 31.<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Permit reporting duties, not proof that reports were filed or their quantities. Locator: PDF page3 condition13 and page4 condition14.</p></dd><dt>Well protection</dt><dd>If the administration determines unreasonable impacts to nearby users, bottled drinking water is required within 24 hours; other water supply and corrective measures may be required. For a lasting interruption a permanent replacement is required within a reasonable time, no more than 60 days. The permittee bears specified investigation and replacement expenses.<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Conditional protections, not a finding of an impacted well or a completed remedy. Locator: PDF pages4 and5 conditions17 and18.</p></dd><dt>Supersedes</dt><dd>This version supersedes FR2023G001(02), effective November 25, 2024. The first appropriation date is separately December 29, 2023.<span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">Prior permit version is not another additive current allocation. No prior version quantity is admitted. Locator: PDF page5 condition19 and page2 heading.</p></dd><dt>Actual withdrawal</dt><dd><span class=\"layer-empty\">Not established</span><span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">No measured pumping records are included in this bounded source review. Unknown is not zero and permitted allocation is not measured use. Locator: Review boundary.</p></dd><dt>Operational cooling use</dt><dd><span class=\"layer-empty\">Not established</span><span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">These permits authorize construction dewatering. No operational cooling withdrawal or consumption is established. Locator: Purpose condition and review boundary.</p></dd><dt>Atlas record id</dt><dd><span class=\"layer-empty\">Not established</span><span class=\"layer-source\"><a href=\"https://mde.maryland.gov/datacenters/Documents/FR2023G001%20%282%29.pdf\">Maryland Department of the Environment</a>. Source: November 21, 2025. Checked: October 23, 2026.</span> <p class=\"layer-scope\">No exact individual Atlas building join reviewed. Campus and contractor naming are insufficient for an automatic join. Locator: Review boundary.</p></dd></dl></article>"},{"id":"water-thermoelectric-md-2015","html":"<article><h3>Maryland historical thermoelectric water context</h3><p class=\"layer-scope\">Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation.</p><dl class=\"layer-fields\"><dt>Historical thermo withdrawal</dt><dd>5520.00 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation. Locator: Table12,printed43,physical51; Maryland row.</p></dd><dt>Historical thermo total use</dt><dd>5520.00 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation. Locator: Table12,printed43,physical51; Maryland row.</p></dd><dt>Historical thermo consumptive use</dt><dd>63.40 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation. Locator: Table12,printed43,physical51; Maryland row.</p></dd><dt>Status</dt><dd>historical<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation. Locator: Table12 header and notes; thermoelectric section printed42.</p></dd><dt>Report period</dt><dd>2015<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation. Locator: Table12 header and notes; thermoelectric section printed42.</p></dd><dt>Historical thermo boundary</dt><dd>Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation.<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical2015 state thermoelectric power estimates, including fresh and saline water. Not current2026 conditions, data center facility use, drinking water demand, permit allocation or proof of a data center effect. Withdrawal, total water use including deliveries and reclaimed wastewater, and consumptive use are distinct. Consumption may exceed withdrawal because other supplied water is included. Independent rounding is retained; no facility joins or per kWh allocation. Locator: Table12 header and notes; thermoelectric section printed42.</p></dd><dt>Once through withdrawal</dt><dd>5500.00 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical2015 thermoelectric power cooling categories: once through and recirculating. These are power plant cooling estimates, not data center cooling technology or current facility use. Withdrawal, total water use including supplied and reclaimed water, and consumptive use remain distinct. Published zero differs from not estimated. Independently rounded cooling totals are not forced to equal Table12 totals; no facility or per kWh allocation. Locator: Table13A,physical56,printed48; Maryland row.</p></dd><dt>Once through total water use</dt><dd>5500.00 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical2015 thermoelectric power cooling categories: once through and recirculating. These are power plant cooling estimates, not data center cooling technology or current facility use. Withdrawal, total water use including supplied and reclaimed water, and consumptive use remain distinct. Published zero differs from not estimated. Independently rounded cooling totals are not forced to equal Table12 totals; no facility or per kWh allocation. Locator: Table13A,physical56,printed48; Maryland row.</p></dd><dt>Once through consumptive use</dt><dd>55.00 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical2015 thermoelectric power cooling categories: once through and recirculating. These are power plant cooling estimates, not data center cooling technology or current facility use. Withdrawal, total water use including supplied and reclaimed water, and consumptive use remain distinct. Published zero differs from not estimated. Independently rounded cooling totals are not forced to equal Table12 totals; no facility or per kWh allocation. Locator: Table13A,physical56,printed48; Maryland row.</p></dd><dt>Recirculating withdrawal</dt><dd>12.10 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical2015 thermoelectric power cooling categories: once through and recirculating. These are power plant cooling estimates, not data center cooling technology or current facility use. Withdrawal, total water use including supplied and reclaimed water, and consumptive use remain distinct. Published zero differs from not estimated. Independently rounded cooling totals are not forced to equal Table12 totals; no facility or per kWh allocation. Locator: Table13B,physical57,printed49; Maryland row.</p></dd><dt>Recirculating total water use</dt><dd>12.10 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical2015 thermoelectric power cooling categories: once through and recirculating. These are power plant cooling estimates, not data center cooling technology or current facility use. Withdrawal, total water use including supplied and reclaimed water, and consumptive use remain distinct. Published zero differs from not estimated. Independently rounded cooling totals are not forced to equal Table12 totals; no facility or per kWh allocation. Locator: Table13B,physical57,printed49; Maryland row.</p></dd><dt>Recirculating consumptive use</dt><dd>8.41 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical2015 thermoelectric power cooling categories: once through and recirculating. These are power plant cooling estimates, not data center cooling technology or current facility use. Withdrawal, total water use including supplied and reclaimed water, and consumptive use remain distinct. Published zero differs from not estimated. Independently rounded cooling totals are not forced to equal Table12 totals; no facility or per kWh allocation. Locator: Table13B,physical57,printed49; Maryland row.</p></dd><dt>Cooling category boundary</dt><dd>Historical2015 thermoelectric power cooling categories: once through and recirculating. These are power plant cooling estimates, not data center cooling technology or current facility use. Withdrawal, total water use including supplied and reclaimed water, and consumptive use remain distinct. Published zero differs from not estimated. Independently rounded cooling totals are not forced to equal Table12 totals; no facility or per kWh allocation.<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical2015 thermoelectric power cooling categories: once through and recirculating. These are power plant cooling estimates, not data center cooling technology or current facility use. Withdrawal, total water use including supplied and reclaimed water, and consumptive use remain distinct. Published zero differs from not estimated. Independently rounded cooling totals are not forced to equal Table12 totals; no facility or per kWh allocation. Locator: Tables13A and13B headers and notes.</p></dd><dt>Historical thermo fresh withdrawal</dt><dd>220.00 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical 2015 thermoelectric power water quality categories, fresh and saline. These are not potable water classifications, current data center use or municipal drinking water allocations. Withdrawal differs from consumptive use; supplied and reclaimed water contributions retain their separate definitions. Independently rounded fresh and saline values are not forced to equal the published total. No facility or per kWh attribution. Locator: Table12,physical51,printed43; Maryland row.</p></dd><dt>Historical thermo saline withdrawal</dt><dd>5300.00 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical 2015 thermoelectric power water quality categories, fresh and saline. These are not potable water classifications, current data center use or municipal drinking water allocations. Withdrawal differs from consumptive use; supplied and reclaimed water contributions retain their separate definitions. Independently rounded fresh and saline values are not forced to equal the published total. No facility or per kWh attribution. Locator: Table12,physical51,printed43; Maryland row.</p></dd><dt>Historical thermo fresh consumptive use</dt><dd>2.29 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical 2015 thermoelectric power water quality categories, fresh and saline. These are not potable water classifications, current data center use or municipal drinking water allocations. Withdrawal differs from consumptive use; supplied and reclaimed water contributions retain their separate definitions. Independently rounded fresh and saline values are not forced to equal the published total. No facility or per kWh attribution. Locator: Table12,physical51,printed43; Maryland row.</p></dd><dt>Historical thermo saline consumptive use</dt><dd>61.20 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical 2015 thermoelectric power water quality categories, fresh and saline. These are not potable water classifications, current data center use or municipal drinking water allocations. Withdrawal differs from consumptive use; supplied and reclaimed water contributions retain their separate definitions. Independently rounded fresh and saline values are not forced to equal the published total. No facility or per kWh attribution. Locator: Table12,physical51,printed43; Maryland row.</p></dd><dt>Historical water quality boundary</dt><dd>Historical 2015 thermoelectric power water quality categories, fresh and saline. These are not potable water classifications, current data center use or municipal drinking water allocations. Withdrawal differs from consumptive use; supplied and reclaimed water contributions retain their separate definitions. Independently rounded fresh and saline values are not forced to equal the published total. No facility or per kWh attribution.<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical 2015 thermoelectric power water quality categories, fresh and saline. These are not potable water classifications, current data center use or municipal drinking water allocations. Withdrawal differs from consumptive use; supplied and reclaimed water contributions retain their separate definitions. Independently rounded fresh and saline values are not forced to equal the published total. No facility or per kWh attribution. Locator: Table12 headers and notes.</p></dd><dt>Historical thermo ground fresh withdrawal</dt><dd>2.30 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical 2015 thermoelectric power withdrawals by groundwater and surface water, each separated into fresh and saline. These are state power generation estimates, not current data center water demand, aquifer stress, potable supply, permits or facility allocations. Withdrawal is not consumption. Independently rounded components are not forced to equal published totals; no facility or per kWh attribution. Locator: Table12,physical51,printed43; Maryland row.</p></dd><dt>Historical thermo ground saline withdrawal</dt><dd>0.00 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical 2015 thermoelectric power withdrawals by groundwater and surface water, each separated into fresh and saline. These are state power generation estimates, not current data center water demand, aquifer stress, potable supply, permits or facility allocations. Withdrawal is not consumption. Independently rounded components are not forced to equal published totals; no facility or per kWh attribution. Locator: Table12,physical51,printed43; Maryland row.</p></dd><dt>Historical thermo surface fresh withdrawal</dt><dd>218.00 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical 2015 thermoelectric power withdrawals by groundwater and surface water, each separated into fresh and saline. These are state power generation estimates, not current data center water demand, aquifer stress, potable supply, permits or facility allocations. Withdrawal is not consumption. Independently rounded components are not forced to equal published totals; no facility or per kWh attribution. Locator: Table12,physical51,printed43; Maryland row.</p></dd><dt>Historical thermo surface saline withdrawal</dt><dd>5300.00 million gallons per day<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical 2015 thermoelectric power withdrawals by groundwater and surface water, each separated into fresh and saline. These are state power generation estimates, not current data center water demand, aquifer stress, potable supply, permits or facility allocations. Withdrawal is not consumption. Independently rounded components are not forced to equal published totals; no facility or per kWh attribution. Locator: Table12,physical51,printed43; Maryland row.</p></dd><dt>Historical water origin boundary</dt><dd>Historical 2015 thermoelectric power withdrawals by groundwater and surface water, each separated into fresh and saline. These are state power generation estimates, not current data center water demand, aquifer stress, potable supply, permits or facility allocations. Withdrawal is not consumption. Independently rounded components are not forced to equal published totals; no facility or per kWh attribution.<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical 2015 thermoelectric power withdrawals by groundwater and surface water, each separated into fresh and saline. These are state power generation estimates, not current data center water demand, aquifer stress, potable supply, permits or facility allocations. Withdrawal is not consumption. Independently rounded components are not forced to equal published totals; no facility or per kWh attribution. Locator: Table12 groundwater and surface water headers and notes.</p></dd><dt>Historical thermo reclaimed water</dt><dd><span class=\"layer-empty\">Not established</span><span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical 2015 thermoelectric power reclaimed wastewater and freshwater public supply deliveries, in million gallons per day. These inputs differ from direct withdrawals and consumptive use. A source dash means not estimated, not zero or no use; published zeros remain zero. No current data center use, potable quality certification, local supply allocation, permit, facility or per kWh inference. Independently rounded values are not forced to balance. Locator: Table12,physical51,printed43; Maryland row.</p></dd><dt>Historical thermo public supply deliveries</dt><dd><span class=\"layer-empty\">Not established</span><span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical 2015 thermoelectric power reclaimed wastewater and freshwater public supply deliveries, in million gallons per day. These inputs differ from direct withdrawals and consumptive use. A source dash means not estimated, not zero or no use; published zeros remain zero. No current data center use, potable quality certification, local supply allocation, permit, facility or per kWh inference. Independently rounded values are not forced to balance. Locator: Table12,physical51,printed43; Maryland row.</p></dd><dt>Historical water delivery boundary</dt><dd>Historical 2015 thermoelectric power reclaimed wastewater and freshwater public supply deliveries, in million gallons per day. These inputs differ from direct withdrawals and consumptive use. A source dash means not estimated, not zero or no use; published zeros remain zero. No current data center use, potable quality certification, local supply allocation, permit, facility or per kWh inference. Independently rounded values are not forced to balance.<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical 2015 thermoelectric power reclaimed wastewater and freshwater public supply deliveries, in million gallons per day. These inputs differ from direct withdrawals and consumptive use. A source dash means not estimated, not zero or no use; published zeros remain zero. No current data center use, potable quality certification, local supply allocation, permit, facility or per kWh inference. Independently rounded values are not forced to balance. Locator: Table12 reclaimed wastewater/public supply headers and dash definition.</p></dd><dt>Historical thermo net generation</dt><dd>30700.00 GWh<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical 2015 net thermoelectric power generated in gigawatt hours, from the same USGS state table as water estimates. Net generation is energy, not installed capacity, peak load, gross generation, electricity sales or data center electricity use. No current-year, facility, water intensity or per kWh allocation inferred; independently rounded source values retained. Locator: Table12,physical51,printed43; Maryland row.</p></dd><dt>Historical generation boundary</dt><dd>Historical 2015 net thermoelectric power generated in gigawatt hours, from the same USGS state table as water estimates. Net generation is energy, not installed capacity, peak load, gross generation, electricity sales or data center electricity use. No current-year, facility, water intensity or per kWh allocation inferred; independently rounded source values retained.<span class=\"layer-source\"><a href=\"https://pubs.usgs.gov/circ/1441/circ1441.pdf\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 26, 2026.</span> <p class=\"layer-scope\">Historical 2015 net thermoelectric power generated in gigawatt hours, from the same USGS state table as water estimates. Net generation is energy, not installed capacity, peak load, gross generation, electricity sales or data center electricity use. No current-year, facility, water intensity or per kWh allocation inferred; independently rounded source values retained. Locator: Table12 net power generated header, gigawatt hours.</p></dd></dl></article>"},{"id":"water-thermoelectric-model-2020-md","html":"<article><h3>Maryland historical2020 modeled thermoelectric water context</h3><p class=\"layer-scope\">USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.</p><dl class=\"layer-fields\"><dt>Status</dt><dd>historical<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference. Locator: Annual output YEAR2020 and model provenance.</p></dd><dt>Thermo2020 period</dt><dd>2020<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference. Locator: Annual CSV YEAR column.</p></dd><dt>Thermo2020 basis</dt><dd>USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference.<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference. Locator: Published annual CSV/attribute definitions/catalog model limitations.</p></dd><dt>Thermo2020 model rows</dt><dd>13 plant-year rows<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference. Locator: Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval.</p></dd><dt>Thermo2020 consumption modeled rows</dt><dd>10 plant-year rows<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference. Locator: Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval.</p></dd><dt>Thermo2020 saline consumption unmodeled rows</dt><dd>3 plant-year rows<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference. Locator: Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval.</p></dd><dt>Thermo2020 withdrawal sum</dt><dd>1819.12 million gallons per day<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference. Locator: Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval.</p></dd><dt>Thermo2020 withdrawal lower sum</dt><dd>830.78 million gallons per day<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference. Locator: Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval.</p></dd><dt>Thermo2020 withdrawal upper sum</dt><dd>13481.31 million gallons per day<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference. Locator: Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval.</p></dd><dt>Thermo2020 consumption available sum</dt><dd>8.00 million gallons per day<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference. Locator: Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval.</p></dd><dt>Thermo2020 consumption lower available sum</dt><dd>6.55 million gallons per day<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference. Locator: Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval.</p></dd><dt>Thermo2020 consumption upper available sum</dt><dd>9.46 million gallons per day<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">USGS2008-2020 thermoelectric water-use reanalysis,published annual output filtered to2020:modeled annual-mean million gallons/day,not observed current2026 water use.958plant-year rows cover48conterminous states,not a complete facility census or data center inventory. Withdrawals include fresh/saline rows;consumption at coastal saline plants was not modeled.54Once-through saline source zero-consumption placeholders are excluded from consumption sums,not measured zero. State best/lower/upper figures are calculated sums of source plant model estimates and thermodynamic plausibility limits,not statewide statistical confidence intervals. Do not compare directly with2015county compilation as a measured trend;methods differ. HUC12 IDs and county labels do not certify parcels;README says public model-input coordinates use interpolated HUC12 centroids,not precise plant locations. No source coordinates adopted,site joins,permit/sustainable availability/datacenter allocation or causal inference. Locator: Calculated from2020 MD rows; source estimate/plausibility fields retained,not a statistical state interval.</p></dd><dt>Thermo2020 cooling basis</dt><dd>Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation.<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation. Locator: Annual YEAR2020 CSV coolingType and metadata coolingType domain definitions.</p></dd><dt>Thermo2020 cooling tower rows</dt><dd>7 plant-year rows<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation. Locator: Calculated count of MD YEAR2020 rows with exact coolingType=Recirculating Tower.</p></dd><dt>Thermo2020 cooling tower withdrawal</dt><dd>10.05 million gallons per day<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation. Locator: Calculated sum of wd_mgd for MD YEAR2020 exact coolingType=Recirculating Tower.</p></dd><dt>Thermo2020 cooling once fresh rows</dt><dd>2 plant-year rows<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation. Locator: Calculated count of MD YEAR2020 rows with exact coolingType=Once-through fresh.</p></dd><dt>Thermo2020 cooling once fresh withdrawal</dt><dd>42.28 million gallons per day<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation. Locator: Calculated sum of wd_mgd for MD YEAR2020 exact coolingType=Once-through fresh.</p></dd><dt>Thermo2020 cooling complex rows</dt><dd>1 plant-year rows<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation. Locator: Calculated count of MD YEAR2020 rows with exact coolingType=Complex.</p></dd><dt>Thermo2020 cooling complex withdrawal</dt><dd>22.56 million gallons per day<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation. Locator: Calculated sum of wd_mgd for MD YEAR2020 exact coolingType=Complex.</p></dd><dt>Thermo2020 cooling once saline rows</dt><dd>3 plant-year rows<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation. Locator: Calculated count of MD YEAR2020 rows with exact coolingType=Once-through saline.</p></dd><dt>Thermo2020 cooling once saline withdrawal</dt><dd>1744.22 million gallons per day<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation. Locator: Calculated sum of wd_mgd for MD YEAR2020 exact coolingType=Once-through saline.</p></dd><dt>Thermo2020 cooling pond rows</dt><dd>0 plant-year rows<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation. Locator: Calculated count of MD YEAR2020 rows with exact coolingType=Recirculating pond.</p></dd><dt>Thermo2020 cooling pond withdrawal</dt><dd>0.00 million gallons per day<span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__b7%2Fce%2Fee%2Fb7ceee404ebbc37e014be1ac9098088824e00443\">U.S. Geological Survey</a>. Source: October 31, 2023. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/file/get/63adc826d34e92aad3ca5af4?f=__disk__da%2Fd9%2F78%2Fdad9784363a86225e69035d9b8c7ef7a8d99da02\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <span class=\"layer-source\"><a href=\"https://www.sciencebase.gov/catalog/item/63adc826d34e92aad3ca5af4?format=json\">U.S. Geological Survey</a>. Source: Publication date not stated. Checked: October 27, 2026.</span> <p class=\"layer-scope\">Historical2020 USGS model-assigned cooling-system categories within the958 reviewed plant-year rows. Counts are model rows,not separate cooling systems or complete state facility counts. Complex means more than one cooling system type;do not distribute Complex rows among other categories. Once-through fresh and saline are literal source categories;do not classify all other categories as freshwater. Withdrawal sums are modeled annual-mean million gallons/day,not consumption,discharge,permits or available supply. A category with no selected rows has a calculated count and sum of zero within this dataset,not evidence of no statewide physical use. All five mutually exclusive model categories partition these rows;saline consumption remains unmodeled and is not inferred from withdrawals. No source coordinates,Native joins,facility or data center allocation. Locator: Calculated sum of wd_mgd for MD YEAR2020 exact coolingType=Recirculating pond.</p></dd></dl></article>"}]}