Water Is One System: Understand the Cumulative Risk Before Development Proceeds

 

The central question is not whether development should ever occur. It is whether Prince William County should approve large-scale development outside the 2040 Comprehensive Plan before it understands the cumulative consequences for the Occoquan watershed—a drinking-water source for nearly one million people. When the potential harm is regional, long-lasting, and difficult or impossible to reverse, uncertainty is not a reason to proceed. It is a reason to pause.

Water does not recognize parcel lines, zoning districts, or regulatory silos. Groundwater, streams, wetlands, stormwater, treated wastewater, reservoir chemistry, and drinking-water treatment are parts of one connected hydrologic system. A decision that reduces groundwater recharge, increases polluted runoff, alters stream flow, or diverts treated return flow affects the same finite supply. Dividing those impacts among separate permits and agencies does not divide the physical risk.

That is why watershed-scale warnings must guide parcel-level decisions. Cumulative damage is created one rezoning, one permit, and one project at a time. No single approval may appear decisive, but together they can push the watershed beyond a threshold that cannot be undone. Evaluating each proposal in isolation obscures the central issue: the combined effect of all approved, pending, and reasonably foreseeable development.

The recently completed LIMA, land-use analysis, may actually understate that combined effect. Its development assumptions were based largely on past growth patterns during the 2013-1015 period of extremely low construction, and on the zoning and development framework reflected in the Comprehensive Plan. Yet, what is happening on the ground is major rezonings and proposals outside that framework. Longleaf, Alderwood, and Hawthorn at Kettle Run alone account for more than 1,200 acres, with additional rezonings advancing in the central Broad Run area and high density residential or data center rezonings under construction or approved in Gainesville, Haymarket and Mid County. If the model does not include the intensity, location, and timing of these exceptions, it cannot reliably describe the future being approved on a one off basis by the Board of County Superviosors.

The consequences are not limited to a single pollutant or stream segment. Clearing, blasting, mass grading, and soil compaction can permanently alter infiltration, groundwater recharge, and stream baseflow. Additional impervious cover increases runoff, sediment, nutrients, dissolved salts, and heat. Industrial cooling can consume or evaporate water that would otherwise remain in the system, while reduced or degraded return flows can weaken reservoir inflow during drought. These effects interact; they must be evaluated as a system.

Mitigation does not eliminate this concern. Stormwater ponds, filters, operating rules, and treatment upgrades can reduce some impacts, but they cannot recreate intact headwaters, uncompacted soil horizons, mature root systems, or the original subsurface pathways that store, filter, and slowly release water. Nor can conventional treatment easily remove every dissolved salt or persistent chemical introduced by more intensive development. Once the natural system is replaced, the public inherits the residual risk and the long-term cost.

This is also an issue of who benefits and who bears the consequences. Developers may capture the immediate financial gain from rezoning and construction, while water customers and taxpayers bear the cost of treatment upgrades, lost storage, drought vulnerability, and damage that may not appear until years later. Public officials should not transfer an irreversible regional risk to residents without first establishing, through credible cumulative analysis, that the watershed can absorb the proposed growth.

We Have Seen This Pattern Before

The rapid expansion of data centers offers a warning. Localities approved projects in a piecemeal fashion before fully accounting for their combined demand on generation, transmission lines, substations, land, and ratepayers. Only after many approvals were in motion did the scale of the strain on the power grid become clear. We should not repeat that sequence with water: approve first, discover the systemwide consequences later, and then ask the public to pay for emergency infrastructure or live with diminished reliability.

The wiser course is informed development within the Comprehensive Plan unless and until updated modeling accounts for the full buildout now being proposed, the interaction of water quantity and water quality, more intense storms and drought, industrial water use, wastewater return flows, and the combined effect of projects already approved or pending. The analysis must come before irreversible land disturbance, when public officials still have meaningful choices.

Water is one system. Before approving development that could permanently alter the Occoquan watershed, the County should understand the cumulative impact—not gamble a regional drinking-water supply so private developers can realize immediate gains while the public absorbs the long-term damage and costs.

 

Groundwater Recharge

Reager, J. T., Molotch, N. P., & Famiglietti, J. S. (2026). Net groundwater recharge in California occurs primarily during above-average snowpack years. Geophysical Research Letters, 53, e2026GL122396. https://doi.org/10.1029/2026GL122396

The below is excerpted from the research letter cited above.

Dr. John T. Reager, a water scientist at NASA Jet Propulsion Laboratory, and colleagues analyzed the GRACE and GRACE FO* satellite data and estimate how much groundwater recharge has occurred annually in California since 2004.  They found that the state’s aquifers have had a net gain in only six of 18 years, and years with lots of snow led to the biggest rises in underground water.

In the Central Valley, groundwater has been dropping for about 100 years as wells and pumps pull up water to irrigate crops and make up the difference when water allocations are cut. The historical maximum of 28 to 30 feet was measured southwest of Mendota in a famous USGS photo. Since that time other areas of the central valley have experienced over draft of groundwater and subsidence. The all resulted in the Sustainable Groundwater Management Act (SGMA), which has yet to prevent the overdrawing of groundwater.

“Nonetheless, California's Central Valley is one of the most heavily managed groundwater systems in the world, supplying much of the state's water use during dry periods and supporting a highly productive agricultural region. Long‐term groundwater withdrawals have led to sustained declines in aquifer storage over the past several decades (e.g., Liuet al., 2022), particularly during multiyear droughts when surface water availability is limited.”

Despite the importance of groundwater in buffering the region from drought, basin‐scale monitoring of groundwater recharge the satellite data from GRACE and GRACE‐FO observations reveal basin‐scale net groundwater recharge events in California are very rare. The net positive recharge years (when more water is added to groundwater stores than is pumped out) are strongly associated with above‐average snowpack years. Thus, future warming may reduce the likelihood of recharge‐capable years.

The data used in this study came from GRACE (Gravity Recovery and Climate Experiment) and its successor, GRACE-FO (GRACE Follow-On), are joint satellite missions between NASA and German research partners (DLR and GFZ) designed to track the movement of mass across the Earth by measuring changes in its gravitational field over time. The original GRACE mission operated from 2002 to 2017. GRACE-FO was launched in May 2018 (yeah SpaceX) after the first satellite had failed.

Unlike typical remote sensing satellites that observe the planet using reflected light or to look down at the surface. Instead, GRACE uses two identical satellites flying in tandem to act as a highly sensitive scale. Because water is incredibly heavy, its seasonal and multi-year movement constitutes the largest variable source of changing mass on Earth. GRACE and GRACE-FO provide critical monthly global maps of these regional variations, unlocking insight across years.

This years of data creates a time series of water data allows the researchers to derive the groundwater over time. By subtracting the measured surface water. The first derivative of a time data series represents the rate of change of the measured variable with respect to time. In physical terms, it allows the scientist to observe the recharge rate of groundwater.

Groundwater storage changes were estimated as the residual of the terrestrial water balance:

GWA(t) = TWSA(t) – SWEA(t) – SWA(t) – SMA(t) + E(t),

where GWA represents groundwater anomaly, derived from terrestrial water storage changes (TWSA) and sub-tracting out snow water equivalent changes (SWEA), surface water storage changes (SWA), and soil moisture storage changes (SMA). (We’ll leave off the discussion of the fudge factor E in this short discussion). The first derivative of a time data series represents the rate of change of the measured variable with respect to time. Thus, in physical terms, it measures the recharge of the water in the system.

By separating groundwater changes from other water stores such as snow, soil moisture, and reservoirs, they estimate when net groundwater recharge occurs and how large itis. The researcher found that basin‐scale net groundwater recharge is rare and has occurred in only 6 years since 2004. Importantly, years with groundwater recharge are more strongly linked to unusually large snowpack in the Sierra Nevada than to high rainfall alone. Even during the exceptionally wet winter of 2023, which produced record snowpack, only a small fraction of the total precipitation was retained as groundwater, and this gain did not offset long‐term groundwater losses. These results suggest that future groundwater replenishment in California depends on substantial snowpack, which is expected to decline as the climate warms. As more precipitation falls as rain rather than snow, opportunities for large‐scale groundwater recharge may become increasingly limited.

Groundwater recharge is a complex Earth system process that has been identified by the National Academy of Sciences as critically important  to our source waters and poorly monitored. Distinguishing between mechanisms of groundwater recharge is essential for assessing how groundwater recharge potential may evolve under a warming climate and that is expected to shift precipitation from snow toward rain, and land use change that may alter the mechanics of recharge and snow melt.

Though, land subsidence does not directly cause the disparity between rainfall and snowfall recharge, which is primarily governed by the physical delivery timeline of the water. However, decades of compaction significantly compound the issue by reducing the aquifer system's vertical permeability and capacity to absorb rapid surface water inputs. When decades of groundwater over-extraction cause land subsidence, the fine-grained clay layers (aquitards) within the aquifer system undergo irreversible compaction. This structural collapse dramatically alters how the subsurface interacts with different water delivery rate.

Net groundwater recharge reflects a balance between climatic inputs and anthropogenic withdrawals. During dry years with limited surface water availability, continued groundwater pumping results in net depletion, whereas during wet years, reduced pumping and enhanced infiltration allow for net recharge (e.g., Famiglietti et al., 2011). Recharge pathways in California include diffuse infiltration, managed recharge, and recharge associated with prolonged snowmelt and runoff from the Sierra Nevada. While basin‐scale GRACE observations cannot resolve individual pathways, the strong association between net recharge and high snowpack is consistent with enhanced focused and mountain‐front recharge during years with sustained snowmelt.

Several high‐precipitation years did not correspond to the largest recharge events, whereas water year 2023 coincided with record‐high Sierra Nevada snowpack, indicating that precipitation alone may be insufficient to produce basin‐scale net recharge. The magnitude of recharge in wet years further emphasizes the limits of basin‐scale recovery. Across the six net‐positive recharge years since 2004, annual net groundwater gains amount to approximately 20%–45% of April 1 Sierra Nevada snowpack.  The researchers found that only a portion of the snow pack was converted into net groundwater gain.

These results suggest that groundwater recharge is not only through total water input, but also through its control on the timing and persistence of water availability. Snowmelt provides a delayed and sustained input of water that extends into spring and early summer, when evaporative demand remains relatively low and infiltration conditions are more favorable. In this sense, snowpack acts as a gating condition for basin‐scale recharge, enabling sustained infiltration beyond the peak precipitation period rather than serving as an independent water source.

This is an important piece of work, the methodology can be used in other climates and geologies to determine groundwater recharge and its drivers.

Carbon Footprint of Northern Virginia

Loudoun County—followed by Prince William County—has undermined the climate progress made by the rest of Northern Virginia. MWCOG’s Mid-Course Review shows that most neighboring jurisdictions reduced greenhouse-gas emissions between 2005 and 2023, while emissions rose sharply in the two counties that approved the region’s largest concentrations of hyperscale data centers. The operating facilities already built, together with the enormous additional load in the development pipeline, are not merely local land-use decisions: they are reshaping electricity demand across Virginia and the wider PJM grid. Unless that growth is constrained or matched with additional carbon-free generation, storage, transmission, and enforceable clean-energy requirements, Virginia cannot remain on the decarbonization trajectory established by the Virginia Clean Economy Act (VCEA), and PJM’s transition away from fossil generation will be delayed.

Two Counties Reversed the Regional Climate Trend

From 2005 to 2023, Arlington and Fairfax counties cut gross emissions by 33% and 27%, respectively. Those gains were offset by Prince William County’s 19% increase and, above all, Loudoun County’s extraordinary 130% increase. Net emissions rose even faster in Loudoun and Prince William because development also removed forests and other carbon-sequestering land. The result is a stark regional inequity: communities that reduced energy use and emissions are seeing their progress eroded by data-center approvals concentrated in two Northern Virginia jurisdictions.

Loudoun County Created the Region’s Largest Carbon Load

Loudoun County is the principal source of the regional divergence. Its transformation into the world’s largest data-center market drove a 130% increase in gross emissions and a 145% increase in net emissions from 2005 to 2023, despite the region’s adopted climate targets. Loudoun’s land-use approvals converted what had been a manageable regional emissions-reduction challenge into a rapidly expanding electricity-demand problem that reaches far beyond the county’s borders.

·         Local approvals produced a permanent industrial load: The pandemic temporarily reduced transportation and office emissions, but data centers operate continuously. Loudoun’s community-wide emissions had already risen 54% by 2020 compared with 2005; by 2023, the accelerating data-center buildout had pushed the gross increase to 130%. This was not a short-lived post-COVID rebound. It was the predictable result of approving a new class of round-the-clock industrial electricity demand.

• Sector Concentrations: Because MWCOG applies a location-based electricity emissions factor, the electricity consumed inside the county maps directly to Loudoun’s inventory. Commercial grid electricity consumption within the Built Environment sector constitutes the vast majority of Loudoun's footprint, outstripping the combined emissions of the residential and transportation sectors.
• Carbon Sequestration Deficit: In 2020, Loudoun's forest canopy sequestered 430,000 metric tons of CO2 equivalent, offsetting roughly 7% of total emissions. However, ongoing land grading and industrial expansions have driven the county’s net emissions increase (+145%) higher than its gross increase (+130%), highlighting the loss of natural carbon sinks of the tree canopy.

Prince William County Copied Loudoun’s Example

Prince William County then followed Loudoun’s development model, approving major data-center corridors and adding another rapidly growing block of continuous industrial demand. This all took place right after the PWBOCS voted to approve climate goals for the County. By 2023, the county’s gross emissions were 19% above the 2005 baseline and net emissions were 22% higher. Instead of helping counterbalance Loudoun’s extraordinary increase, Prince William compounded it—further weakening the region’s ability to meet its collective climate commitments.

• The Multi-Year Trajectory: PWC's community-wide emissions grew from 4.16 million metric tons of CO2  equivalent in 2005 to 4.96 million metric tons of CO2 equivalent in 2018—a 19% increase prior to the pandemic. While per-capita emissions initially dropped 10% due to rapid population growth outstripping emissions pacing (+32% population vs +19% emissions), the post-lockdown industrial expansion stabilized the footprint at a persistent 19% gross and 22% net increase by 2023. Since that time data centers continued to come on line.
• Sector Breakdown Trends: Historically, PWC’s emissions were led by energy consumption (residential and commercial) at 54% and transportation at 38%. Post-lockdown data shows commercial grid consumption increasing its share of the pie, driven by the expansion of data center corridors along Route 234 and the Innovation Park tech zone.
• Canopy Degradation: PWC’s forest canopy provides net sequestration of more than 368,000 million tons of CO2 equivalent annually. Similar to Loudoun, massive land-use changes for new industrial campuses and right-of-way transmission lines have widened the gap between gross (+19%) and net (+22%) emission baselines.

The Consequence: Virginia and PJM Cannot Decarbonize on Schedule Under the Current Load-Growth Path

The consequences now extend well beyond county boundaries. The VCEA requires Dominion Energy to move toward 100% carbon-free electricity by 2045, but the data centers already operating—and the much larger pipeline under construction or approved in Loudoun and Prince William—are causing electricity demand to grow faster than clean generation and transmission can be added. Under that trajectory, new renewable resources must first chase new data-center load rather than displace existing fossil generation. The practical effect is to postpone coal and gas retirements, increase pressure for new gas-fired resources and imports, and make the statutory VCEA timetable increasingly difficult if impossible to achieve.

1.      Virginia’s problem becomes PJM’s problem: Dominion is part of the multi-state PJM system. When Northern Virginia’s continuous data-center load exceeds the pace at which Virginia can add carbon-free supply, PJM must commit additional generation somewhere in the regional fleet. Because marginal and reliability resources remain heavily dependent on natural gas and coal, local approvals in Loudoun and Prince William can prolong fossil generation and associated transmission investments across multiple states.

The approved pipeline locks in the conflict: This is no longer a question of whether individual facilities can purchase renewable-energy credits or claim annual clean-energy matching. The grid must supply these campuses every hour of every day. Unless data-center growth is tied to deliverable, additional, round-the-clock carbon-free power—and unless projects can be curtailed when that supply is unavailable—the approved pipeline will keep raising the amount of generation PJM must serve before it can retire fossil resources. On the present path, Loudoun and Prince William Board of County Supervisors have placed both Virginia’s VCEA schedule and PJM-wide decarbonization out of reach without major policy intervention.

EO 22 Changes the Conversation—Not Virginia’s Data Center Trajectory

Bottom line: Executive Order 22 marks an important change in how Virginia talks about data centers. For the first time, the Commonwealth formally acknowledges that rapid growth imposes statewide costs on the electric grid, water resources, communities, ratepayers, and the environment. But the order does not stop, cap, or materially slow development already in the pipeline. It changes the policy framework—not the trajectory.

 What EO 22 Changes Now

EO 22 shifts Virginia away from unqualified promotion of data centers and toward greater transparency, coordination, and accountability. Its principal immediate actions are to:

• end most state-agency nondisclosure agreements that conceal project incentives, resource demands, and community impacts;
• withdraw certain discretionary state assistance, expedited permitting, and site-readiness support from new projects of 25 megawatts or more;
• centralize state data center policy under the Office of the Chief Energy Officer; and
• direct agencies to study noise, backup generation, water use, emissions, grid reliability, cost allocation, workforce benefits, and community protections.

What EO 22 Does Not Change

EO 22 is not a moratorium and contains no statewide limit on data center capacity, square footage, or power demand. It does not revoke entitlements, cancel approved site plans, rescind vested rights, prevent local approvals, or direct Dominion Energy or PJM to deny service to entitled projects. Losing state assistance may add cost or delay, but it is unlikely to deter a hyperscale developer from a Northern Virginia site that already has zoning approval, fiber access, and a path to power.
Why the Approved Pipeline Matters

Loudoun County reports 233 data center buildings built or under construction,  and covering more than 56 million square feet, another 35.7 million square feet approved but not yet built—potentially about 115 additional buildings—and 20.7 million square feet still under review. Not every approved project will be constructed, but the pipeline is large enough to sustain years of construction, substations, transmission lines, generators, and additional water and power demand even if new approvals slowed sharply.

Prince William County has also accumulated substantial approved and pending capacity. Its September 2026 zoning amendment limits future expansion of the Data Center Opportunity Zone, but it preserves several pathways for properties and projects already in the development process. The amendment narrows future growth without eliminating the existing pipeline, and landowners have a deadline of December 21, 2026, to finalize their by-right status before it is eliminated. Other than the thousands of acres still in the overlay district, Prince William County has as of October 2026 :  64 completed data centers, 25 projects under construction,  53 approved awaiting groundbreaking, and 15 active land-use applications currently under staff and agency review. The completed data centers account for 13.4 million square feet and currently under construction are an additional 8 million square feet. 

A Policy Pivot, Not Yet a Growth-Control Policy

Virginia has actively recruited data centers since 2009 through tax incentives, economic-development assistance, and permissive local land-use policies. EO 22 breaks with the assumption that growth should be encouraged without first accounting for cumulative costs. That is a political and administrative shift.

Yet most of the order’s stronger provisions remain studies, planning tools, voluntary standards, agency recommendations, or proposals for future legislation. Transparency and coordination can improve decision-making, but they do not themselves constrain development. The order may affect projects not yet entitled; it is unlikely to produce a visible near-term decline in construction in Loudoun or Prince William.

What Would Bend the Curve

EO 22 will become a true growth-control policy only if it leads to enforceable measures: mandatory discretionary review of large facilities; cumulative regional impact analysis; binding limits tied to available power, water, air-quality, and watershed capacity; full assignment of infrastructure costs to the projects that cause them; authority to defer new utility connections where capacity is inadequate; tighter local zoning; limits on extensions or expansions under old entitlements; and reconsideration of tax incentives that continue to encourage growth.

Conclusion: EO 22 changes Virginia’s conversation by recognizing that data center growth carries statewide costs and requires statewide oversight. But the approved and entitled pipeline will continue to drive construction for years. Unless the order is followed by binding legislation, regulation, utility decisions, and stronger local land-use controls, Virginia will have changed its posture without changing its path.

Are Electric Vehicles Always Better for the Planet?

J. Elliott Campbell, Roland Geyer, The climate benefits of retiring a fully operational internal combustion engine vehicle.Science393,591-595(2026).DOI:10.1126/science.adv5441

Idris M, Garniwa I, Soesilo TE, Utomo SW, Asyari MZ. Environmental impacts of internal combustion engine vs electric vehicle: Life-cycle assessment review. International Journal of Technology. 2025 May 1;16(3):882-913.

Recent research by J. Elliott Campbell and Roland Geyer examines the climate consequences of retiring a fully operational internal-combustion-engine vehicle and replacing it with an electric vehicle. Their life-cycle analysis concludes that the greenhouse-gas benefits of switching can begin on the first day of the gasoline vehicle’s life. Even when a conventional vehicle is retired relatively early, the avoided operating emissions generally outweigh the emissions associated with producing the replacement EV. Cost, accessibility, driving needs, and other practical considerations still shape individual decisions, but from a climate perspective, the study finds that it is almost never too soon to switch. The full article is linked above.

That climate advantage, however, is not the whole environmental story. My husband remains concerned about batteries, which is one reason I still do not own an EV.

A comprehensive life-cycle assessment (LCA) reveals a genuine trade-off: EVs usually perform far better on greenhouse-gas emissions, especially during use, but their batteries can impose heavier burdens during mineral extraction, refining, and manufacturing. The result is not a simple contest between a “clean” vehicle and a “dirty” one. It is a comparison of impacts that occur in different places, at different times, and through different environmental pathways.

Raw Materials and Manufacturing
This first stage creates the sharpest contrast between the two vehicle types. Manufacturing an EV—particularly its battery—generally requires more energy and a broader range of minerals than manufacturing a conventional vehicle. Those upstream impacts are concentrated near mines, refineries, processing facilities, and battery plants rather than along the road where the vehicle is driven.

The Battery Footprint
Lithium extraction from brines can consume or displace large volumes of water in arid regions, while hard-rock mining requires crushing, concentration, and chemical processing. Nickel and cobalt production can also generate acidic, metal-laden tailings. Without strong controls, these wastes can threaten nearby soils, surface waters, and groundwater.

Battery production also adds substantial factory energy demand. The environmental cost varies with battery size, chemistry, manufacturing efficiency, and the electricity mix used throughout the supply chain.

Driving and Energy Use
Once the vehicles are on the road, the comparison shifts. A gasoline vehicle continues to burn fuel and emit carbon dioxide throughout its operating life. An EV has no tailpipe emissions, but its indirect emissions depend on how the electricity used for charging is generated.

Carbon payback: The cleaner the grid and the more efficiently the EV is driven, the faster it offsets the additional emissions from battery manufacturing. Even on a relatively fossil-fuel-heavy grid, an EV can achieve lower lifetime climate emissions; on a renewable-heavy grid, the advantage grows substantially.

 Non-exhaust particulate pollution: EVs eliminate tailpipe pollution, but their greater weight can increase tire wear. Regenerative braking may reduce conventional brake wear, so the net particulate effect depends on vehicle weight, tire design, driving conditions, and braking technology.

End of Life: Disposal, Reuse, and Recycling

A mature conventional-vehicle system:   Steel, iron, aluminum, and many other components from internal-combustion vehicles already flow through established recycling markets.

An emerging battery-recycling system: EV batteries may be reused for stationary storage before recycling. Modern processes can recover high shares of valuable materials, but collection systems, processing capacity, economics, and environmental controls are still developing. Poorly managed or damaged batteries can create fire and contamination risks.

So, Should I Replace My Car?

This research complicates the decision to keep or replace my 12-year-old vehicle. It has fewer than 54,000 miles, runs well, and avoiding unnecessary consumption matters to me. Yet, if the question is strictly which choice produces fewer future greenhouse-gas emissions, the evidence favors switching to an EV—even before an older gasoline vehicle reaches the end of its mechanical life.

The broader lesson is that “better for the planet” depends on which impacts we count. EVs offer a powerful climate advantage, but that advantage should not excuse the environmental costs of mining, water use, industrial waste, and battery production. The best path is not simply more EVs; it is cleaner electricity, smaller and longer-lasting vehicles, responsible mineral sourcing, effective battery reuse and recycling, and fewer unnecessary miles driven. My husband and I will probably continue debating batteries and self-driving technology and delay purchasing a new vehicle for a while longer. Meanwhile, I am encouraged by the next generation of higher-output solar panels now entering production, because cleaner electricity makes every EV mile more beneficial.

The Hidden Ledger of Northern Virginia's Data Center Boom

According to the latest promotional inserts from Virginia Connects, data center revenues have allowed the Loudoun County Board of Supervisors this io drop the nominal tax rate (while the property value has continued to climb) to the lowest in the region while increasing the size of the county government. This organization is a promotional partnership formed by major tech giants (including Amazon Web Services, Google, Microsoft, Meta, and CloudHQ) alongside local chambers of commerce, real estate developers, and labor unions. But this is not money without consequences. The cloud is not ephemeral. It is made of concrete, steel, copper, and industrial backup generators. It is a sprawling physical footprint of windowless server halls, roaring cooling towers, and high-voltage electrical substations cutting across the countryside.

Northern Virginia claims itself as the global capital of digital infrastructure. To local county governments, data centers are an unprecedented financial engine; to local communities, they represent a severe ecological and economic crisis. To understand the true cost of our digital society, we must look past our glowing screens and balance a heavy ledger: the localized tax windfalls versus the physical, environmental, and financial costs exported across our region.

 The Local Promise: Municipal Windfalls and Reduced Tax Rates

There is no denying the immediate municipal benefits the data center industry has brought to counties like Loudoun and Prince William67. The personal property taxes assessed on high-value computer servers have flooded local municipal coffers, allowing supervisors to fund state-of-the-art public schools, expand libraries, build parks, and support public services—all while lowering residential real estate tax rates.

Furthermore, data center construction has generated thousands of high-paying trade jobs in grading, structural steel, and electrical engineering, driving over $24 billion in corporate capital investment in Virginia in FY23 alone67. Once operational, however, these massive industrial campuses require minimal permanent staffing, averaging just 28 direct permanent jobs per facility.

While the first 25 to 50 data centers operated as good corporate citizens within existing utility capacity, hyper-scale expansion has crossed a critical marginal cost inflection point3more_horiz. The cost of building new, capital-intensive infrastructure to feed this exponential growth now far eclipses any cost-sharing benefits, shifting immense costs onto everyday residents.

 Hidden Cost #1: Regressive Electricity Rates and Socialized Transmission

Data centers demand a continuous, flat, 24/7 electrical load910. Meeting this non-stop demand has forced local utilities like Dominion Energy to double down on expensive spot-market power purchases (jumping from 14% to 23%), driving utility fuel expenses up 88% over five years to $4.35 billion—a cost passed 100% directly to residential consumers.

Surging demand also triggered severe capacity shortfalls across the 13-state PJM regional grid, causing wholesale capacity prices to spike by over 1,000% since 20241314. In the July 2026 capacity auction, data centers accounted for $6.3 billion (38%) of the total $16.4 billion procurement cost.

To move this power, grid operators approved a $11.8 billion regional transmission expansion, adding to the $2.8 billion Virginia ratepayers have already paid for data-center-driven lines since 2021. Under PJM cost-allocation rules, 50% of the cost for extra-high-voltage (500kV+) lines (like the 115-mile Valley Link line) is socialized across the entire 13-state footprint. Consequently, everyday Virginia households are seeing actual residential electricity rates surge to 17.22¢/kWh—a 43.5% increase over a flat-demand baseline of ~12.0¢/kWh—with average monthly household bills projected to reach $195.

Hidden Cost #2: Water Depletion, Impervious Sprawl, and Reservoir Threats

Cooling high-density AI servers requires millions of gallons of water20more_horiz. A single hyperscale facility can consume 450,000 to 5 million gallons per day, with evaporative cooling systems permanently evaporating over 50% of that public water rather than returning it to local systems20more_horiz. Regional water experts warn that data center water draw from the Potomac River Basin is projected to grow from 8% to 25% by 2035 and could exceed 33% by 2050 during dry summer droughts22more_horiz. In rural areas, heavy pumping drops water tables in fractured-rock aquifers, causing private wells to fail25more_horiz.

Data from ICPRB forecast

When mature forests (which naturally absorb 90%–100% of rainfall) are clear-cut and covered with concrete, 80% of rainfall is instantly converted into high-velocity stormwater runoff27more_horiz. Standard stormwater ponds fail to restore natural hydrology or recharge aquifers3132. Instead, this rapid runoff causes flash flooding, stream erosion, and washes massive loads of construction silt directly into major drinking water sources, including the Occoquan Reservoir (which supplies drinking water to 1 million Northern Virginia residents)2930. To build larger intake pipes, storage facilities, and treatment plants, municipal water authorities issue bonds repaid through higher local water rates levied on residents.

 Hidden Cost #3: Toxic Diesel Pollution and Derailed Clean Energy Goals

Because wind and solar are intermittent and cannot supply 24/7 flat baseline power, utilities are delaying fossil fuel plant retirements and planning 8 GW of new natural gas generation, directly derailing state clean energy targets like the Virginia Clean Economy Act (VCEA).

To avoid server downtime during grid strain, data center campuses house arrays of 250 to 300 industrial diesel generators per site. State guidance allows facilities to operate these engines during non-emergency "grid stress events"39. Activating these generators simultaneously in "Data Center Alley" during a multi-day emergency could release 9,000 tons of nitrogen oxides —representing roughly half of Northern Virginia's entire annual air emissions budget.

These health risks were highlighted when the Virginia DEQ issued a record $2.5 million fine against Microsoft after its Leesburg facility ran 62 backup engines for 168 hours following a substation failure, burning 1.2 million gallons of fuel and emitting over 102 tons of NOx and fine particulate matter directly downwind of neighborhoods and schools.

 Hidden Cost #4: Visual Blight and Industrial Noise

The physical footprint of these "internet factories" permanently alters the landscape. Sprawling, windowless concrete-and-steel structures surrounded by heavy security fencing replace farmland and rural buffers, creating a stark, prison-like industrial aesthetic.

The surrounding countryside is increasingly bisected by towering 500-kV and 765-kV steel transmission towers and substations cutting across rural communities that receive zero municipal tax benefits910. Meanwhile, neighboring homeowners endure persistent, low-frequency hums from cooling towers and generator testing. 

Loudoun County Tax Promise	Exported Regional & Community Reality
Lower Real Estate Tax Rates: High-value server personal property taxes fund municipal coffers.	Higher Electricity Bills: Residential rates up 43.5% (17.22¢/kWh) to subsidize grid buildouts and spot gas.
Expanded Public Services: State-of-the-art schools, libraries, and parks.	Water Rate Hikes & Infrastructure Debt: Municipal utility debt to build larger treatment/intake capacity.
Short-Term Construction Jobs: Generates high-paying trade jobs during buildout.	Watershed & Aquifer Failure: Evaporates millions of gallons daily; runoff silts drinking reservoirs for 1M residents.
Corporate Investment Capital: Exceeded $24 billion in FY23 alone.	Toxic Air & Visual Blight: 9,000 tons of {NO} generator capacity, concrete campuses, and high-voltage towers.

Recognizing the heavy physical ledger of the data center boom is not about opposing technology—it is about recognizing that Northern Virginia has reached its physical limits4546. To protect shared public resources, state and local leaders must pause unconstrained approvals and force data center developers to cover their full capital and environmental costs.

Virginia’s Infrastructure Report Card

 Excerpted from a ASCE press release and the undying full report:

The Virginia section of the American Society of Civil Engineers (ASCE) released the 2026 Report Card for Virginia’s Infrastructure today, assigning the Commonwealth’s infrastructure a grade of ‘C’. That grade is unchanged from the 2022 Virginia report card and matches the grade on ASCE’s 2025 Report Card for America’s Infrastructure. A ‘C’ grade means Virginia’s infrastructure is in mediocre condition and requires attention. The report covers 13 categories of infrastructure: bridges, broadband, dams, drinking water, energy, public parks, rail, roads, schools, solid waste, stormwater, transit, and wastewater.  

Four infrastructure categories (bridges, rail, roads, solid waste, and stormwater) saw grades increase, while only two categories (dams and schools) saw grades drop compared to the 2022 report card. Additionally, 11 of the 13 infrastructure categories received an equal or higher grade than their national counterparts. Only Virginia’s energy and rail infrastructure had grades lower than the national category grades.  

The report finds that infrastructure systems that have received consistent, reliable, dedicated funding sources are showing steady improvement and are seeing additional benefits from short-term investment programs like the federal Infrastructure Investment and Jobs Act (IIJA). However, with funding from the IIJA expiring in September, future improvements are in jeopardy if investment reverts to pre IIJA levels. Additionally, the report card found infrastructure sectors where funding has been inconsistent are not improving and face challenges in the future.  

“Infrastructure investment works and leads to better economic outcomes for Virginia families and businesses,” said John Harman, P.E., Chair of the 2026 Report Card for Virginia’s Infrastructure. “This report card reveals the consequences of decades of underinvestment, along with the improvements Virginians are seeing because of recent investment by federal, state, and local leaders. Safe, reliable, modern infrastructure is key to attracting people, businesses, and jobs to the Commonwealth.”   

This is the first time ASCE has released a grade for Virginia’s energy, which came in at a ‘D’, lower than the national energy grade of ‘D+’. Energy use in Virginia is forecast to double by the year 2039, in large part because of data centers and other facilities with high energy demands. Virginia’s electric infrastructure faces a looming capacity crisis; the Commonwealth is the nation’s largest importer of out-of-state electricity with 36% of energy consumed in Virginia generated in other states. Additionally, 56% of electricity consumed in the state is for commercial use, compared to 35% nationally. While energy providers have ambitious plans to build new modern energy generation, transmission, and distribution facilities, demand is forecast to grow much faster than current expansion plans. 

Bridges is one of two categories to receive a ‘B+’ on the 2026 report card, an increase from a ‘B’ in 2022.  Only 3.1% of the state’s more than 13,000 bridges are in poor condition, which is substantially lower than the national average of 6.8%. While there has been progress to keep bridges in good or fair condition, many of the state’s bridges are near or approaching the end of their design life. The report card found 58% of bridges are more than 50 years old. Additionally, the number of bridges and culverts that have weight restrictions grew between 2021 and 2025, with 1,443 posted for weight restrictions in 2025, compared to 1,116 in 2021.  

Roads in Virginia improved to a ‘C’ on the 2026 report card, up from a ‘C-’ in 2022. The state’s busiest highways are well maintained, with 91% of interstate highways and 82% of high-volume primary roads in fair, good, or excellent condition. High volume secondary roads also saw substantial improvements over the last few years, with 82% in fair or better condition in 2024, compared with 60% in 2020. Despite this progress, there are still 40,000 lane miles of highway in Virginia in poor or worse conditions, primarily on roads with lower traffic volume. Traffic volume across Virginia has rebounded to pre-pandemic levels, and urban commuters lose approximately 39 hours of productivity per year due to traffic congestion.  

Virginia’s water infrastructure received higher grades than the national report card. Drinking water received a ‘C+’, compared to the national ‘C-’ grade, and the state’s stormwater grade of ‘C’ is a whole letter grade higher than the national average of ‘D’. While these systems are performing better than their national counterparts, funding sources for water infrastructure are not keeping up with demand, and many drinking water lines installed decades ago need rehabilitation or replacement. The state has more than $30 billion in stormwater infrastructure needs, driven by growth, flooding concerns, and climate adaptation needs due to increasing severe weather events and tidal flooding in coastal areas. 

Two million residents, or 22% of Virginia’s population, rely on well water. There has not been a significant increase in the number of applications for new wells since 2020 remaining at 10-11 thousand per year. Nine to twelve percent of the total wells constructed each year are to replace an existing water supply well. While Virginia’s largest water provider is Fairfax Water, provids170 million gallons of water per day (MGD) to over 2.2 million people. The plant capacity is 345 MGD. What is not distributed by Fairfax Water is sold to other water authorities including Prince William Water and several city systems.

Virginia’s dam system includes about 2,712 dams, most of them small and privately owned. A substantial share of dams lacks clear documentation, including missing ownership, purpose, hazard classification, and condition, which makes it harder to manage risk, understand accountability, and prioritize maintenance.

The report card includes five recommendations to raise Virginia’s infrastructure grade, they include:  

• Investment: Increased investment is needed to meet growing demands driven by population growth and more intense storm events. Targeted funding will help ensure infrastructure can continue to operate safely and reliably under increasing stress. 
• Resilience: Recent storms have demonstrated Virginia’s resilience while highlighting the need for the state to prepare for future events, including updating emergency action plans for all departments and municipalities.
• Safety: Strengthening dam inspection programs and adopting comprehensive roadway safety strategies will be essential to reducing risks and improving public safety statewide. Additional funding for dam inspection programs and repair programs is essential.
• Capacity: Added capacity for aging water-related infrastructure is critical, especially as population growth continues. Many systems are past their design life cycle and need upgrades, which will help to address water quality, flooding, and erosion concerns. Source water protection becomes more important.
• Technology: Relying on improving technologies such as green infrastructure and artificial intelligence (AI) will help to stretch limited funding and ensure investments are made efficiently.

The report card is a public service to inform citizens and policymakers about the infrastructure needs in Virginia. Civil engineers use their to condense complicated data into an easy-to-understand analysis of Virginia’s infrastructure network. ASCE state report cards are modeled after the Report Card for America’s Infrastructure, which is released once every four years.