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Droughts pose a serious threat to communities, agriculture, and ecosystems worldwide. As water scarcity intensifies, finding effective ways to manage and conserve water resources becomes critical. Geophysical exploration and monitoring systems (GEPS) offer powerful tools to understand underground water reserves, track changes in soil moisture, and guide water management strategies. This post explores how GEPS can help alleviate drought conditions by providing accurate data, improving water use efficiency, and supporting sustainable planning. Geophysical survey detecting underground water in drought-affected land Understanding Geophysical Exploration and Monitoring Systems Geophysical exploration involves using physical methods to study the Earth's subsurface without drilling or excavation. These methods include seismic surveys, ground-penetrating radar (GPR), electrical resistivity tomography (ERT), and electromagnetic surveys. Monitoring systems use sensors and remote sensing technologies to track changes over time in soil moisture, groundwater levels, and other environmental factors. Together, these tools provide detailed information about underground water availability, soil conditions, and geological formations. This data helps water managers, farmers, and policymakers make informed decisions to reduce drought impacts. Mapping Underground Water Resources One of the biggest challenges during droughts is identifying reliable water sources. Traditional methods like drilling wells can be costly and uncertain. GEPS can map underground aquifers and water-bearing formations with high precision. For example: Ground-penetrating radar sends radio waves into the ground and detects reflections from water-saturated layers. Electrical resistivity tomography measures how electrical currents flow through soil and rock, revealing moisture content and water pathways. Seismic surveys analyze how sound waves travel underground to identify porous rock formations that hold water. By accurately locating groundwater, communities can develop wells in the right places, reducing wasted effort and avoiding over-extraction from fragile sources. Monitoring Soil Moisture and Drought Progression Soil moisture is a key indicator of drought severity and crop health. GEPS equipped with sensors and satellite data can monitor soil moisture levels continuously over large areas. This information allows: Farmers to adjust irrigation schedules based on real-time soil conditions, conserving water while maintaining crop yields. Water managers to track drought progression and predict water shortages before they become critical. Researchers to study how drought affects ecosystems and develop better drought-resistant crops. For example, electrical resistivity sensors installed in fields can provide hourly updates on soil moisture, enabling precise irrigation that saves water and energy. Supporting Sustainable Water Management Data from geophysical exploration and monitoring helps design sustainable water management plans that balance human needs and environmental health. Some practical applications include: Recharge zone identification: GEPS can locate areas where rainwater naturally infiltrates the ground to replenish aquifers. Protecting these zones ensures groundwater supplies remain stable. Leak detection: Monitoring systems can detect leaks in irrigation canals and pipelines, preventing water loss. Drought early warning: Combining soil moisture and groundwater data with weather forecasts improves drought prediction models, giving communities more time to prepare. In California, for example, geophysical surveys helped identify critical recharge zones in the Central Valley, guiding conservation efforts that improved groundwater sustainability during drought years. Case Study: Using GEPS in Agriculture In a semi-arid region of Australia, farmers faced severe drought that threatened their livelihoods. By adopting geophysical monitoring tools, they gained detailed maps of underground water and soil moisture patterns. This allowed them to: Drill wells only where sustainable groundwater was available. Implement drip irrigation systems controlled by soil moisture sensors. Rotate crops based on water availability data. As a result, water use dropped by 30%, crop yields stabilized, and the community built resilience against future droughts. Challenges and Future Directions While GEPS offer many benefits, challenges remain: Cost and accessibility: Advanced equipment and expertise can be expensive, limiting use in low-income or remote areas. Data integration: Combining different geophysical data types into clear, actionable insights requires sophisticated software and trained analysts. Environmental variability: Geological complexity can make interpretation difficult, requiring site-specific calibration. Ongoing research aims to develop more affordable sensors, improve data processing algorithms, and integrate GEPS with other technologies like drones and AI for better drought management. Practical Steps for Communities and Farmers To harness the power of geophysical exploration and monitoring systems, stakeholders can: Partner with universities or government agencies that offer geophysical survey services. Invest in soil moisture sensors and simple monitoring tools for farms. Use publicly available satellite data combined with local measurements. Train local technicians to operate and interpret geophysical equipment. Develop water management plans that incorporate GEPS data for decision-making. These steps build local capacity to respond effectively to drought and protect water resources.

The solar energy revolution is reshaping land across the globe. Hundreds of thousands of acres have been converted to utility-scale solar arrays, each one generating clean electricity while standing on something that rarely gets discussed: the soil itself. The panels in an array decrease surface area for the ground to absorb stormwater, and the same heavy equipment used to build these facilities leave behind compacted soils. Uneven and/or poor moisture distribution can be expensive for a solar installation, with drainage, maintenance, and repair costs creating a significant concern for solar developers, operators, and insurers as to long-term expense and longevity. A passive, maintenance-free technology from Exlterra called the Groundwater Energy Passive System (GEPS®), addresses both of solar's major soil-related headaches: stormwater runoff driven by construction compaction and decreased permeable surface area, and long-term structural damage caused by uneven moisture distribution around panel footings. The Compaction Problem When a solar developer breaks ground, the land is fundamentally transformed. Heavy grading equipment levels terrain, pile drivers hammer steel posts into the earth dozens or hundreds of times per acre, and service vehicles travel repeatedly over the same paths during construction and throughout the operational life of the site. The result, confirmed by U.S. Department of Energy-funded research, is soil compaction — one of the single greatest stormwater management challenges facing the solar industry today. A DOE-funded study known as PV-SMaRT, conducted by the Great Plains Institute in partnership with NREL and the University of Minnesota, found that compacted soils between solar arrays can roughly double the volume of stormwater runoff compared to undisturbed land. Unlike conventional development, where impervious surfaces are acknowledged and stormwater infrastructure is sized accordingly, solar facilities often occupy a regulatory gray area where they're treated as pervious when, in practice, their compacted surfaces can behave like parking lots during a rainstorm. Solar panels also concentrate rainfall runoff at the lower panel edge, known as the drip line. Research at Pennsylvania solar farms found soil moisture directly beneath drip lines ran 19% higher than adjacent land over a full year of monitoring, while soil beneath the panels themselves ran 25% lower. These persistent wet zones erode the ground below them, overwhelm perimeter BMPs with sediment-laden runoff, and create compliance headaches for stormwater operators. The Infiltration Problem Each solar panel surface is a hard, smooth, non-absorbing plane. Rainfall that would otherwise be distributed across the ground at natural intensities is instead intercepted, accelerated across the panel face, and shed in concentrated sheets along the drip line. Panel coverage behaves much like a metal roof — high runoff coefficients, short time of concentration, and peak flows that arrive faster and with more energy than pre-development conditions would produce. When the contributing panel area is scaled across hundreds of acres, this effect is substantial. A large utility-scale array may shade and redirect rainfall from a significant fraction of the site's total footprint. Regulatory frameworks that calculate impervious cover based solely on hardscape may dramatically undercount the effective runoff-generating area of a solar installation. Permitting assumptions built around a "mostly pervious" site can leave the project's stormwater calculations materially wrong before construction even begins, requiring costly and time-sensitive stormwater management solutions. The fill and grading practices common to solar site preparation compound this further. Sites are typically cut and filled to achieve consistent panel orientation and minimize inter-row shading, often importing or redistributing significant volumes of material. Engineered fill, particularly when placed over existing topsoil without amendment, tends to be denser than the native soil it covers or displaces. Infiltration rates in fill zones may be only a fraction of what pre-grading conditions supported. When this reduced-permeability fill underlies inter-row areas that are also receiving concentrated drip-line flow, the runoff calculations worsen considerably. The site generates more water in more concentrated patterns, across soils that are less capable of absorbing it, than developers are ready for. GEPS® directly addresses this compounding effect. By improving soil structure/behavior in compacted and disturbed zones — including fill areas — the system works to restore infiltration capacity passively over the operational life of the site. The inter-row areas where most of the problems occur are precisely the zones where a well-designed GEPS® installation can reintroduce infiltration that fill placement and construction traffic have removed. The Structural Problem The moisture gradient created by solar arrays is also a slow-moving structural threat. Differential settlement, where one part of a foundation sinks faster or deeper than adjacent sections, is well understood in geotechnical engineering. Its causes include variable soil composition, poorly compacted fill, and fluctuating soil moisture levels. Soils that cycle repeatedly between wet and dry states expand and contract; over years, this movement beneath neighboring pile footings is a reliable recipe for foundation problems. For solar trackers with continuous torque tubes connecting multiple panel rows mechanically, even a few inches of relative movement between adjacent pile footings can bend and jam the tracker mechanism, crack welds, and require expensive repairs or early component replacement. A support that technically remains standing can still cause major operational problems if it shifts enough to misalign rows, stress cables, or put the array out of spec. This risk compounds over the 25 to 30-year operational life of a typical solar installation. The soil beneath panels stays drier because it is sheltered from rain. The soil beneath drip lines stays wetter because it receives concentrated runoff. These chronic moisture gradients drive uneven shrink-swell behavior in clay soils, causing adjacent pile footings to settle at different rates over time. The problem rarely appears in initial project pro formas and frequently doesn't manifest until years after the original EPC contractor's warranty has expired. The Infrastructure Problem When a solar facility generates more runoff than the landscape can absorb, the excess water has to go somewhere. And getting it there safely and in regulatory compliance is not cheap. Solar projects on sites with meaningful runoff impacts routinely require engineered drainage infrastructure: graded swales and ditches to convey surface flows away from inter-row areas, inlet structures to collect and route concentrated discharge, and detention or retention ponds to attenuate peak flows before release to receiving waters. In many jurisdictions, stormwater management requirements are triggered based on calculated post-development runoff volumes, and a solar facility that honest hydrologic modeling treats as substantially impervious may face the same infrastructure obligations as a commercial shopping center of comparable size. Detention pond sizing, outlet control structures, emergency spillways, and the embankments that contain them represent meaningful capital cost — and, unlike the panels, they produce no revenue. The ongoing maintenance burden of this infrastructure is also significant and poorly appreciated at the pro forma stage. Detention ponds accumulate sediment, particularly when upgradient drip-line erosion is active; forebays fill and require periodic excavation. Swales and ditches that carry concentrated, fast-moving flow erode their own banks and need regular inspection and regrading. Outlet structures clog, riser pipes corrode, and embankments require mowing and periodic inspection to meet dam safety requirements where they apply. These are recurring operational costs, not one-time construction items. When GEPS® restores soil infiltration capacity in inter-row areas and moderates the concentrated discharge from drip-line zones, it reduces the hydrologic loading that the downstream drainage infrastructure must handle. A site that infiltrates more and discharges less through GEPS® may require smaller ponds, shorter swale runs, simpler outlet designs, or no additional stormwater designs altogether. The savings on infrastructure capital and the avoided maintenance cost over a 30-year project life represent real financial value that sits alongside GEPS®'s stormwater compliance and structural benefits. GEPS® is the Solution GEPS® is a passive soil moisture redistribution system. Each unit is a slender, 1¼-inch diameter polyethylene shaft available in lengths from 5 to 40 feet, installed using a lightweight drilling rig (the Exlterra HAZL) with a small-diameter auger. GEPS® operates by passively creating pressure conditions that allow moisture to migrate volumetrically in 3 dimensions through the surrounding soil matrix — even in low-permeability clay layers where vertical infiltration is typically limited. During an acclimation period following installation, the soil reorganizes around each GEPS® unit, developing improved moisture balance and a healthier pore structure. GEPS® works with the natural hydrological cycle: when wet zones form, moisture migrates toward drier zones; when dry zones develop, moisture redistributes from wetter areas nearby. The system has no moving parts, requires no electricity, and demands no maintenance. For solar fields specifically, this means two things: Stormwater that previously ran off compacted soil begins infiltrating again as the pore structure recovers, reducing surface ponding and the concentrated flows that erode drip line soils. The uneven moisture gradient between drip lines and under-panel zones gradually flattens as moisture redistributes laterally across the soil volume. Pile footings across the array end up in a more uniform moisture environment, reducing the differential shrink-swell behavior that drives damage during settlement. The Case for Acting Early with GEPS® Post-construction remediation of stormwater and erosion problems at solar sites is consistently more expensive than prevention. Scarifying detention pond bottoms, installing emergency erosion controls, and negotiating with regulatory agencies over compliance violations all cost real money and operational attention. Research cited in Chesapeake Bay watershed stormwater studies found that landscapes compacted by solar construction can remain so for a decade or more after panels are removed and the land is replanted. Differential settlement repairs are similarly disruptive. Retrofitting or replacing continuous torque tube trackers after foundation movement requires taking rows offline, mobilizing specialized crews, and potentially revising engineering documentation. The structural consequences of soil moisture mismanagement often don't surface until year five, ten, or fifteen of a project. GEPS® addresses both problems through a single installation. The technology leaves no above-ground infrastructure to interfere with maintenance vehicles. A 40-foot unit influences a soil volume approximately 52 feet in diameter, meaning a well-designed array of units can cover the inter-row spacing of a large solar facility with overlapping zones of influence. The system begins acclimating immediately after installation and continues working for the full operational life of the project. As solar development moves toward more challenging sites — heavier clay soils, complex hydrology, former agricultural land with compaction history — the need for tools that address soil health proactively will only grow. GEPS® provides solar operators a way to meet that challenge without adding operational complexity or ongoing maintenance burden. Panels are important, but the ground the panels are installed on can make or break a long-term investment into solar. Interested? Learn more or find a licensed installer near you today!

Water is essential for life, yet many regions around the world face severe water shortages. One key factor behind this crisis is the depletion of underground water sources known as aquifers. These natural reservoirs supply drinking water, support agriculture, and maintain ecosystems. Protecting and replenishing aquifers is critical to sustaining communities and the environment. New technology developed by Exlterra offers a promising way to restore aquifers naturally, helping to secure water for future generations. Natural wetland area showing water infiltration into soil Why Aquifers Matter More Than Ever Aquifers store vast amounts of freshwater beneath the earth’s surface. They act as natural sponges, holding water that can be drawn upon during dry periods. Around 30% of the world’s freshwater comes from groundwater, making aquifers a vital resource for billions of people. Unfortunately, many aquifers are being drained faster than they can refill. Over-pumping for agriculture, industry, and urban use lowers water tables, causing wells to dry up and land to sink. Climate change also reduces rainfall and disrupts natural recharge cycles. Without intervention, these trends threaten water security, food production, and ecosystem health. The Challenge of Natural Aquifer Recharge Aquifers recharge when rainwater or surface water slowly seeps through soil and rock layers. This process can take years or decades depending on the geology and climate. In many places, natural recharge is limited by: Urban development that covers soil with concrete, blocking water absorption Soil compaction from farming or construction reducing permeability Pollution contaminating recharge zones and groundwater Reduced rainfall due to changing weather patterns These factors mean aquifers cannot replenish quickly enough to keep pace with demand. Finding ways to enhance natural recharge is essential. How Exlterra’s Technology Supports Natural Recharge Exlterra has developed a technology that helps restore aquifers by improving how water infiltrates the ground. Their approach focuses on working with nature rather than against it. Key features include: Permeable surfaces that allow water to pass through instead of running off Engineered recharge basins designed to maximize water absorption Soil conditioning to increase porosity and water retention Monitoring systems to track recharge rates and water quality By combining these elements, Exlterra’s technology accelerates the natural process of aquifer replenishment. This method reduces flooding risks, improves groundwater levels, and supports sustainable water use. Real-World Examples of Aquifer Recharge in Action Several projects using similar natural recharge techniques demonstrate the potential impact: In California’s Central Valley, recharge basins capture excess winter runoff and direct it into underground aquifers. This practice has helped raise groundwater levels by several feet in some areas. In Australia, permeable pavements and rain gardens in urban neighborhoods allow stormwater to soak into the soil, reducing pressure on local aquifers. In India, traditional water harvesting structures combined with modern soil treatments have restored groundwater in drought-prone regions. These examples show how targeted interventions can make a measurable difference in aquifer health. Benefits Beyond Water Supply Enhancing natural aquifer recharge offers multiple advantages: Improved water quality as soil filters pollutants during infiltration Reduced surface flooding by capturing stormwater on site Stronger ecosystems supported by stable groundwater levels Lower energy use compared to pumping and treating surface water Resilience to drought through increased water storage underground Communities that adopt these methods gain long-term water security and environmental benefits. What You Can Do to Help Recharge Aquifers Individuals, businesses, and governments all have roles to play in protecting groundwater: Support policies that protect recharge zones from development and pollution Use landscaping techniques that promote water infiltration, such as rain gardens and permeable driveways Reduce water waste and adopt efficient irrigation methods Invest in or advocate for projects that restore natural water cycles Educate others about the importance of groundwater and recharge Every action contributes to healthier aquifers and a more sustainable water future. Looking Ahead: The Future of Aquifer Recharge Technology As water challenges grow, technologies like Exlterra’s will become increasingly important. Continued research and innovation can improve recharge methods, making them more effective and affordable. Integrating these solutions into urban planning and agriculture will help balance water use with natural replenishment. Collaboration between scientists, engineers, policymakers, and communities will drive progress. By valuing groundwater as a precious resource and investing in its renewal, society can avoid severe water shortages and protect ecosystems.

If you've ever noticed cracks snaking across a basement wall, doors that suddenly won't close right, or a driveway that's heaved up in the middle of nowhere, you may have experienced one of the most costly and least-talked-about problems in construction: expansive clay heave . It's a problem that quietly destroys billions of dollars in homes, commercial buildings, and infrastructure every year. And for too long, the construction industry has been fighting it with the wrong tools. That's changing. What Is Clay Heave — and Why Is It So Destructive? Expansive clay is found across large swaths of soil volumes around the world. Unlike stable soils, clay swells dramatically when it absorbs moisture and shrinks when it dries out. This constant cycle of expansion and contraction creates what engineers call vertical soil displacement  — and when it happens unevenly beneath a structure, the consequences can be severe. We're talking about swelling pressures that can exceed 10,000 pounds per square foot. Foundations crack. Slabs buckle. Walls rack. Utilities break. Clay heave remediation is notoriously expensive, not counting the warranty headaches, legal exposure, and reputational damage that follow for builders and developers. The root cause, critically, isn't just the presence of clay. It's moisture variability  — the uneven wet and dry conditions that develop beneath and around a structure over time. Irrigation on one side of a home, shade on another, poor drainage at a corner — all of these create differential moisture patterns that make one area of soil swell while another shrinks, tearing structures apart from below. Why Traditional Solutions can Fall Short The construction industry has tried to solve this problem for decades. The most common approaches all have a fundamental flaw: they work around clay heave instead of addressing what actually causes it. Deep foundations  (piers and piles) transfer loads down to stable soil below the active zone. But the near-surface soils — the ones under your driveway, sidewalks, utilities, and landscaping — keep right on moving. Over-excavation and replacement  removes the problematic clay and swaps it for engineered fill. It's enormously disruptive and expensive, and moisture can still migrate back into residual clay at the edges and interfaces over time. Chemical stabilization  with lime or cement alters the soil's chemistry to reduce swell potential — but it doesn't regulate the moisture fluctuations that continue to drive differential movement. Performance is highly dependent on soil chemistry and quality control, and results can degrade over time. Structural reinforcement  — post-tensioned slabs and other heavy-duty systems — makes structures better at surviving movement, but doesn't reduce the movement itself. Cosmetic and serviceability damage still occurs. None of these methods fix the actual problem. They're all, in one way or another, just bracing for impact. GEPS: Treating the Cause, Not the Symptom GEPS (Groundwater Energy Passive System)  takes a fundamentally different approach. Instead of resisting or accommodating clay heave, GEPS is designed to stabilize the soil moisture conditions that cause it in the first place . GEPS units are installed vertically into the ground, forming a network of moisture-rebalancing technology throughout the soil mass. Here's what makes it remarkable: the system is entirely passive . No pumps, no electricity, no moving parts. It works by harnessing natural soil pressure and moisture cycles to promote the three-dimensional redistribution of water within the soil. The result is that moisture is continuously equalized across the footprint of a structure. Instead of one corner staying wet from irrigation while the opposite side dries out under full sun exposure, the soil beneath and around the building trends toward a more uniform moisture state. The violent wet-dry swings that drive heave are dampened. The "hot spots" of chronic saturation — which create the worst heave episodes — are reduced as moisture redistributes vertically and laterally across soil layers. Over time, this means the soil behaves more predictably. Heave and settlement still occur, but within a much narrower band. Foundations move less differentially. Slabs stay more level. Utilities stay intact. What This Means for Homeowners, Builders, and Developers For homeowners , GEPS offers something that no other technology has really delivered: long-term peace of mind about the ground under and around your home. GEPS doesn't just move water downward — it rebalances moisture in all directions, including laterally, stabilizing the full soil volume surrounding a structure. Critically, GEPS can be installed before construction even begins , preemptively improving soil conditions on a site before a single foundation is poured. It can equally be deployed as a reactive measure  on existing structures where clay heave has already become a problem, making it a solution for new builds and long-suffering homeowners alike. For builders and developers , the calculus is compelling. GEPS installation costs significantly less than the remediation bill for a single home with serious clay heave damage — and far less than the deep foundation or full excavation alternatives that still don't solve the underlying problem. More importantly, GEPS directly reduces the moisture variability that drives warranty claims — meaning fewer callbacks, less litigation exposure, and a stronger reputation for building on difficult sites. The system's protection extends beyond the foundation itself. Slabs-on-grade, driveways, sidewalks, and underground utilities all sit in the same active zone that GEPS stabilizes. That comprehensive coverage is something deep piers and chemical treatments simply can't match. For developers managing subdivisions , GEPS scales efficiently. Layouts can be tailored to specific footprint geometries and site conditions, and the approach is repeatable across identical plan sets. There's no operational overhead — once installed, the system maintains itself indefinitely through natural soil cycles. A Smarter Way to Build on Difficult Ground What makes GEPS genuinely novel is that it works with  soil physics rather than fighting against it. The same capillary forces and pressure differentials created by natural wet-dry and freeze-thaw cycles are precisely what power the system. It doesn't try to dry out the soil or waterproof it from above — it uses the soil's own energy to achieve a more stable equilibrium state. For decades, the industry's response to expansive clay has been to build stronger, heavier, and deeper. GEPS asks a different question: what if we made the soil itself more stable? That's not just a better technical answer. For homeowners who've watched their walls crack and their doors stick year after year, and for builders who've fielded the calls and absorbed the costs — it's also a long-overdue one. Interested? Learn more or find a licensed installer near you today!

At Exlterra, we’re proud to be applying  GEPS (Groundwater Energy Passive System)  to solve real, persistent challenges in stormwater infrastructure — not just on golf courses, but in critical detention ponds that struggle with standing water. Two Key Installations, One Shared Problem We have recently completed GEPS installations in two very different contexts: Denver, Colorado  – on the premises of the Owens Corning roofing plant. Elevation:  Denver sits at approximately  5,280 ft above sea level. The detention pond at this site was frequently overflowing onto a road used by delivery trucks, disrupting operations and posing safety risks. Salisbury, Maryland  – within a 65,000-gallon detention pond on the premises of the  Maryland Department of Transportation, Motor Vehicle Administration (MVA) . Elevation:  Salisbury is nearly at  sea level , around  36 ft  above sea level. Despite being intended as a detention pond (not retention), water frequently stood there, defeating its purpose. The Challenge: Standing Water in Detention Ponds Both ponds suffer from the same issue: water remains stagnant long after rain, even though they were designed to drain. This persistent standing water can lead to: Mosquito breeding and associated health risks Odor problems Disruption to site operations (as seen in Denver) Regulatory risk and poor stormwater management Traditional fixes like pumps are expensive, energy-intensive, and require maintenance. GEPS offers a smarter, passive alternative. GEPS to the Rescue: How It Works GEPS is installed below the surface, without moving parts or electricity. Its key benefits for these detention ponds include: Faster Recovery After Storms:  Following a rain event, the ponds drain more quickly, minimizing downtime and overflow risk. Long-Term Reduction in Standing Water:  Over time, GEPS helps maintain lower average water levels — significantly reducing stagnant water periods. Passive, Sustainable Solution:  Unlike pumps, GEPS works with the natural subsurface to manage water, requiring no ongoing energy input. Real-World Impact In  Denver , GEPS helps avoid overflow on the plant’s access road — a major operational benefit. In  Salisbury , through subsurface infiltration and balanced redistribution, GEPS offers the only viable, low-impact solution (besides pumping) for managing the full 65,000-gallon capacity — particularly crucial given its extremely low elevation. A Model for Smarter Infrastructure These installations exemplify how GEPS can convert underperforming detention systems into efficient, environmentally sound assets. By retrofitting failing ponds, Exlterra is helping organizations like Owens Corning and the Maryland Department of Transportation: Reduce risk and liability. Cut down on maintenance and energy costs. Improve resilience and sustainability in stormwater management. Interested? Learn more or find a licensed installer near you today!

Exlterra is proud to announce the installation of GEPS on the first three greens at Golf de Neuchâtel, marking the beginning of a full deployment across all 18 greens over the next two years. This partnership reflects the club’s commitment to sustainable, future-oriented course management and reinforces GEPS as a proven solution within the Swiss golf community. GEPS, our passive subsurface system, increases the natural infiltration capacity of soils and helps maintain an optimal moisture balance throughout the year. By enhancing the soil’s own ability to absorb, retain, and redistribute water, GEPS enables courses to achieve an estimated 30% reduction in irrigation needs over time on greens—without any mechanical parts or maintenance. Knowledge Sharing and Field Demonstration During the installation, Golf de Neuchâtel hosted an open day for greenskeepers and representatives from neighboring clubs. The objective was to provide a firsthand look at the installation process and discuss real-world results from courses already equipped with GEPS. One of the highlights of the day was the presence of Norbert Daverat, the greenskeeper from Golf & Country Club de Bâle, who has been using GEPS since our first installation there in 2023. He shared his positive experience, including: Improved infiltration and drainage Healthier, more resilient turf Enhanced playability after heavy rain Noticeable reduction in water usage His testimony reinforced what we have seen across installations in North America and Europe: GEPS delivers consistent, measurable improvements that benefit both course management and player experience. A Scalable, Proven Solution for Golf Courses Golf de Neuchâtel’s long-term adoption of GEPS reflects a growing movement among clubs seeking reliable, sustainable tools to address water management challenges. As climate variability continues to affect course maintenance, GEPS offers a passive, long-lasting solution that helps clubs stay ahead of increasing environmental and regulatory pressures. We look forward to completing the full installation over the coming two years and continuing to collaborate closely with the club’s management and greenkeeping team. Interested? Learn more or find a licensed installer near you today!

Water needs to move through soil for healthy plants, stable foundations, and effective stormwater management. But in many places, water can’t get into the soil volume as it should. This is usually due to the type of soil, how the soil is arranged, or the way different soil layers interact. Below, we explain the main reasons why soil infiltration is often poor and how Exlterra's Groundwater Energy Passive System (GEPS) can help. What Stops Water from Soaking into Soil? Clay and Dense Soils Clay-rich and other dense soils have very small particles that fit tightly together. This leaves little space for water to move, and once water gets in, it’s placed under so much pressure it gets trapped. When clay soil is dry, it cracks, but once it gets wet, those cracks close and water can’t get through. Compacted soils, which happen when soil is pressed down by heavy equipment or foot traffic, have the same problem. The soil gets squeezed, the spaces between particles shrink, and water stays on the surface or gets trapped inside instead of moving further. Surface Crusting During dry months, the very top of the soil dries out and forms a "crust" that makes it difficult for water to infiltrate. Since GEPS rebalances moisture content in the soil year-round, the ground where it's installed won't form a "crust" in dry months, and will accept water much quicker during rain. Capillary Barriers Between Soil Layers Many soils have layers with different textures. For example, a fine clay layer might sit on top of a sandier layer. Water moves down through the fine layer but then stops at the boundary with the coarse layer - even though coarse soils tend to infiltrate better on their own. This happens because water needs more force to move from the smaller spaces in the clay layer into the bigger spaces in the sandy layer. The result is water "pooling" above the boundary, causing soggy soil above and dry soil below. Low Organic Matter and Poor Structure Soils with little organic matter or few plant roots have fewer large pores. Without these natural channels, water moves slowly or not at all. Poor soil structure can also result from erosion or lack of biological activity. How GEPS Can Help GEPS Passively Infiltrates Water GEPS doesn't act like a straw or a pipe - it creates pressure gradients in the soil that help water move where it naturally wants to move, through the soil itself. As the soil expands and contracts with wetting and drying cycles, GEPS will squeeze and relax, encouraging water to move where it's meant to go - from areas of high to low concentration. GEPS Resolves Capillary Barriers At the boundary between different soil layers, the pressure gradients created through GEPS help water cross from one layer to the next. Improves Soil Structure Over Time As GEPS works, it responds to the soil expanding or contracting around it, agitating the soil. This means that over time, water can move more freely, and the soil becomes healthier and more stable overall. This also solves issues related to low roots/organic matter, since healthier soils mean stronger turf and vegetation. No Power or Maintenance Needed GEPS works through the natural movement and behavior of soil and water. It doesn’t need electricity or regular maintenance. Once installed, it keeps working on its own as a true set-and-forget environmental solution. Why GEPS is the best-in-class solution for improving your soils Poor infiltration is a common problem caused by clay soils, surface crusting, capillary barriers, and low organic matter. GEPS solves these problems by creating new opportunities for water to infiltrate, breaking through tough soil layers, and improving soil structure. It’s a simple, long-lasting solution for better water management and healthier soil. GEPS can... Reduce runoff and erosion by letting more water soak in Prevent water pooling and soggy spots in clay or compacted soils Help plants grow by making water available consistently in the soil Improve stormwater management and groundwater recharge ...All completely passively, in the healthiest long-term method for your ground. Interested? Learn more or find a licensed installer near you today!

The Groundwater Energy Passive System (GEPS) by Exlterra is revolutionizing water management in turf and landscape environments, especially on golf courses. By enhancing soil-water interactions, GEPS delivers measurable improvements in water conservation, moisture retention, and sustainability - directly supporting environmental goals and significantly reducing the need and cost of irrigation. GEPS and Water Conservation GEPS is engineered to optimize the natural movement and retention of water within the soil. Their unique design: Expands the capillary fringe , allowing water to be retained and distributed more efficiently throughout the soil profile. Resolves hydraulic discontinuities , breaking through compacted or layered soils that typically restrict water movement. Increases the soil’s capacity to store and retain moisture , even after rainfall or irrigation events. These enhancements are achieved passively, requiring no external power or maintenance, making GEPS a sustainable, long-term solution for water management. Real-World Impact: Reduced Irrigation on Golf Courses Golf courses across diverse climates and geographies have reported dramatic reductions in irrigation needs after installing GEPS. Based on field data: Irrigation requirements are reduced by 30-60% , depending on the region, climate, and specific area of the course. Fairways, which traditionally require more water due to their larger surface area and exposure, see the greatest decreases in irrigation, often on the higher end of the reduction range. Greens, with their specialized turf and soil composition will also benefit, though the percentage reduction is typically somewhat lower than fairways. This reduction is achieved without compromising turf quality or playability , and in many cases, turf health and resilience actually improve due to more consistent soil moisture levels. Sustainability and Environmental Benefits The environmental advantages of GEPS extend far beyond water savings: Supports Sustainability Goals: By reducing water consumption, GEPS helps golf courses and other managed landscapes meet regulatory and voluntary sustainability targets. Lowers Operational Costs: Less irrigation means lower water bills, reduced energy use for pumping, and less wear on irrigation infrastructure. Reduces Runoff and Erosion: Improved water retention decreases surface runoff, helping prevent erosion and protecting local waterways from nutrient and chemical leaching. Promotes Healthier Soil and Turf: Enhanced moisture retention supports robust root systems and healthier plant growth, reducing the need for supplemental fertilizers and chemicals. Why GEPS is the Future of Water Management Traditional irrigation methods often result in uneven water distribution and excessive water loss through evaporation or runoff. GEPS addresses these challenges by: Creating a more uniform and stable moisture profile in the soil. Allowing rain and irrigation water to penetrate deeper and be retained longer . Reducing the frequency and volume of supplemental irrigation required. By leveraging advanced soil science and innovative engineering, GEPS provides a passive, maintenance-free solution that aligns with the growing demand for sustainable, cost-effective water management in the turf industry. Interested? Learn more or find a licensed installer near you today!

Urban stormwater management faces critical challenges as cities expand, but Exlterra’s Groundwater Energy Passive System (GEPS) offers an innovative solution. This technology maximizes infiltration in space-constrained environments while ensuring environmental safety and can be used standalone or alongside existing low-impact development (LID) systems. How GEPS Maximizes Infiltration in Tight Spaces GEPS leverages volumetric distribution to overcome surface area limitations. When stormwater enters a soil volume where GEPS is present, it passively and naturally flows underground in all three axes of physical space (vertical and lateral) and is dispersed across a vastly expanded soil footprint. A single 40-foot GEPS unit can redistribute water across 8,495 sq. ft of soil beneath the ground. This approach ensures efficient water absorption even in dense urban settings, where traditional stormwater solutions typically require larger footprints. GEPS as a standalone Low Impact Development technology GEPS follows the principles of Low Impact Development (LID) by virtue of its design, installation, and effects: GEPS is a completely passive technology that leverages the natural behaviors and properties of soil and water to boost their interaction. GEPS minimizes the impact of ground compaction and runoff generated by impervious surfaces by enhancing the infiltration rate of soils and giving water more space in the ground to distribute. GEPS manages stormwater at the source instead of moving it elsewhere. GEPS is installed without the need for excavation or other invasive processes, and spaces where GEPS has been installed are usable as soon as work is complete. GEPS can be implemented in microscale projects where space is limited, or scaled up to cover large areas. GEPS is maintenance-free as a passive technology, and does not require any power or other infrastructure to bring its benefits to a project. Additionally, GEPS has no negative environmental impact : Studies have shown that even with a stormwater infiltration rate increase of up to 10.2x , GEPS does not accelerate the movement of contaminants within a soil volume. Studies tracking the levels of both chemical and microbial contaminants (chlorides and E.Coli) showed no impact on their levels within the groundwater, even as GEPS decreased the runoff load to existing stormwater systems by 80%. GEPS as a supporting Low Impact Development Technology Existing stormwater LID solutions can be significantly improved by introducing GEPS into a project. Better infiltration rates and increased stormwater storage capacity in the underground soil volume can help existing solutions achieve better performance , remediate failed solutions , or even allow solutions to be implemented in situations that wouldn't gain approval otherwise. Interested? Learn more or find a licensed installer near you today!

Detention basins, also called Detention Ponds, play a crucial role in stormwater management, but they can face various challenges over time. This article explores what detention basins are, how they work, common problems, and innovative solutions to enhance their performance. What is a Detention Basin? A detention basin is a large, constructed depression designed to temporarily store stormwater runoff from surrounding areas. These basins help prevent localized flooding by reducing the peak rate of runoff to streams or storm sewers, giving stormwater runoff a place to go that isn't your property. How Does a Detention Basin Work? Detention basins function by: Collecting stormwater runoff during rain events Holding the water temporarily Releasing it at a controlled rate through outlet structures This process helps to: Prevent downstream flooding Reduce erosion in streams Potentially improve water quality by allowing some sediment to settle Common Detention Basin Problems and Solutions 1. Basin Not Draining Problem : Water remains in the basin long after a storm event. Solution : Clear debris from outlet structures Inspect for and repair any damage to outlet pipes Perform regular maintenance to remove fine sediment Consider implementing innovative technologies like GEPS to enhance infiltration performance 2. Basin Filling Too Quickly Problem : The basin reaches capacity faster than designed. Solution : Remove accumulated sediment to restore storage capacity Evaluate and improve upstream erosion control measures Install a GEPS system  to optimize water distribution and infiltration, enhancing local infiltration rates 3. Erosion Issues Problem : Erosion of the surrounding ground or deterioration of surrounding turf. Solution : Install riprap or fabric-formed concrete Use erosion control blankets for turf establishment Implement GEPS technology  to stabilize soil moisture and reduce erosion potential 4. Poor Water Quality Problem : Stagnant water, algae growth, or unpleasant odors. Solution : Introduce aquatic plants to absorb excess nutrients Consider aeration systems for wet basins Install a GEPS system  to mitigate standing water and avoid conditions that would hurt water quality Enhancing Detention Basin Performance with GEPS The Groundwater Energy Passive System (GEPS) represents a cutting-edge solution for optimizing detention basin performance. This innovative technology offers several advantages: Improved Infiltration : GEPS units significantly enhance water infiltration rates. Enhanced Water Distribution : The system facilitates more efficient lateral and vertical water movement, reducing surface ponding. Sustainable Design : GEPS operates passively without requiring external power or maintenance, making it a cost-effective set-and-forget long-term solution. Adaptability : GEPS can be easily integrated into existing detention basins or incorporated into new designs. Year-Round Effectiveness : Unlike some traditional solutions, GEPS maintains its performance across seasons and varying weather conditions. By addressing common detention basin issues at their root cause, GEPS offers a comprehensive solution that goes beyond surface-level fixes. Its ability to enhance infiltration, reduce erosion, and improve water quality makes it an ideal choice for both new installations and retrofitting existing basins. Conclusion Detention basins are essential components of stormwater management systems, but they require proper maintenance and sometimes innovative solutions to function optimally. While traditional maintenance practices remain important, integrating advanced technologies like GEPS can significantly enhance basin performance, reduce long-term maintenance costs, and provide more sustainable stormwater management solutions. By understanding how detention basins work and implementing effective solutions, including cutting-edge technologies like GEPS , we can ensure these vital stormwater management systems continue to protect our communities and environments effectively. Interested? Learn more or find a licensed installer near you today!

Exlterra has joined the European Institute of Golf Course Architects (EIGCA) as a Partner in February 2025. This collaboration marks a significant step for Exlterra in its mission to provide innovative solutions for the golf industry. A prestigious institute The EIGCA stands out for its commitment to excellence in golf course architecture. Its members, skilled architects with notable projects across Europe, uphold high design standards while respecting tradition and environmental considerations. With a network spanning 25 countries and three continents, the EIGCA represents a diverse and influential group in golf course design. Exlterra's sustainable golf course maintenance solutions Exlterra's expanding portfolio aligns with the EIGCA's environmental focus. The company's GEPS (Groundwater Energy Passive System) technology offers innovative approaches to stormwater management and water conservation for enhanced golf course maintenance, addressing critical concerns in golf course design. GEPS benefits for golf courses include: Water conservation: Reduces irrigation needs by up to 50% Enhanced playability: Maintains optimal course conditions Groundwater replenishment: Aids in long-term water sustainability Shaping sustainable golf course design This partnership positions Exlterra to showcase its technologies to a wider audience of golf course architects and industry professionals. As golf courses face pressure to adopt sustainable practices, Exlterra's GEPS technology is set to influence both golf course design and environmental conservation. By collaborating with the EIGCA, Exlterra aims to play a key role in shaping sustainable golf course design, balancing sport requirements with environmental responsibility. Learn more about Exlterra's sustainable solutions for golf course maintenance and landscape professionals

Heavy rain leads to significant standing water and potential flooding around many properties. Dealing with a flooded backyard can be frustrating and potentially damaging to your property. This guide will help you understand what causes backyard flooding and explore various solutions, including an innovative technology that offers a sustainable, low-maintenance fix. Common Causes of Backyard Flooding Natural Causes Constant heavy rainfall High water table Soil types that don't infiltrate well Melting snow Man-Made Causes Poor or broken drainage systems Clogged gutters Poor yard grading Impervious surfaces (like concrete or asphalt) Common Solutions and Their Limitations 1. French Drains French drains are perforated pipes surrounded by gravel that redirect water away from problem areas. Benefits: Can be effective for moderate drainage issues Can be installed in various locations Limitations: Requires regular maintenance to prevent clogging May not be sufficient for severe flooding Can be disruptive to install 2. Rain Barrels Rain barrels collect rainwater from your roof for later use. Benefits: Can reduce runoff Provides water for gardening Limitations: Not legal everywhere Limited capacity Not effective for large-scale flooding Requires regular maintenance 3. Regrading Your Yard Adjusting the slope of your yard can help water flow away from your house. Benefits: Addresses the root cause of poor drainage Can be a long-term solution Limitations: Can be expensive and labor-intensive May not be feasible for all properties Doesn't address underlying soil issues 4. Sump Pumps Sump pumps actively remove water from low-lying areas. Benefits: Can be effective for basements and crawl spaces Automatic operation Limitations: Requires substantial electricity to function Regular maintenance needed Not ideal for large outdoor areas 5. Trench Drains / Channel Drains These surface-level drains collect and redirect water. Benefits: Can be effective for driveways and patios Can potentially handle large volumes of water Limitations: May not address subsurface water issues Can be prone to clogging May require professional installation The Innovative Solution: Groundwater Energy Passive System (GEPS) While traditional methods can offer some relief, they often come with significant drawbacks. Enter the Groundwater Energy Passive System (GEPS), an innovative technology that addresses issues like backyard flooding at its core. Why Choose Exlterra GEPS? Unlike traditional solutions that often only treat the symptoms of backyard flooding, GEPS addresses the underlying causes. It doesn't move water away, instead improving the soil's ability to manage water naturally. This means you're not just solving a flooding problem - you're enhancing your property's overall health and resilience. Benefits of Exlterra GEPS Sustainability:  GEPS works with nature, not against it, improving overall soil health. Low Maintenance:  Once installed, GEPS requires no ongoing maintenance or power source. Minimally Invasive Installation: GEPS is installed without excavating, limiting any aesthetic impact during installation. Long-Term Solution:  GEPS addresses the root causes of poor drainage, not just the symptoms. Cost-Effective:  In addition to the savings a homeowner will see due to the the lack of maintenance costs, its long-term effectiveness makes GEPS a smart investment. Versatility:  GEPS can be installed in various soil types and landscapes. Environmental Impact:  By improving soil health and water management in a natural and passive way, GEPS contributes to the overall health of your property. For homeowners looking for a truly effective, long-term solution to backyard flooding, GEPS stands out as the superior choice. Its passive operation, sustainability, and ability to work with nature rather than against it make it an innovative and responsible solution for modern water management challenges. By choosing GEPS, you're not just fixing a flooding problem - you're investing in a technology that will continue to benefit your property for years to come, all while contributing to a more sustainable approach to water management. Interested? Learn more or find a licensed installer near you today!