Water Resource & Groundwater Sustainability
The Colorado River Basin's post-2026 Operating Guidelines are under negotiation while Lake Mead and Lake Powell sit at historic lows. California's Sustainable Groundwater Management Act has produced Groundwater Sustainability Plans for over 140 basins — many returned to revision. The Ogallala Aquifer's multi-generational depletion is now state policy across six states. Even in the East, the Apalachicola-Chattahoochee-Flint and Great Lakes Compact disputes continue. Water-resource sustainability is no longer a Western problem — it is the operating reality across most of the country, on horizons that exceed any individual planner's tenure. MAGNET4WATER is built for that horizon — on coupled federal-standard engines that span watersheds, aquifers, and the multi-decade climate forcing the analysis now requires.
Tier 1, 2, and 2a shortage declarations under the existing operating guidelines. Post-2026 operating guidelines under negotiation. Forty million people across seven Basin States plus Mexico depend on the outcome — with the technical evidence behind any allocation proposal facing the most adversarial review in compact-history.
The Sustainable Groundwater Management Act covers over 140 high- and medium-priority basins. Many Groundwater Sustainability Plans have been returned by the Department of Water Resources for revision. Multi-decade GSP trajectories are now law — with state intervention authority if local GSAs cannot deliver sustainability.
Texas, New Mexico, Oklahoma, Kansas, Colorado, Nebraska. Aquifer declines of 30–100+ feet in extensive areas. Kansas LEMAs (Local Enhanced Management Areas). Texas groundwater conservation districts. The multi-generational consequences of current pumping rates are now state policy — not an academic projection.
Atmospheric rivers in California. Snowpack-to-rainfall ratio shifts across the West. Drought and flood within the same water year. Tropical-system penetration deeper inland. The historical hydrologic record is no longer a sufficient design basis — forward-looking climate analysis is now baseline, not a research exercise.
The Apalachicola-Chattahoochee-Flint Basin tri-state water dispute. Florida saltwater intrusion in coastal aquifers. Connecticut River Basin emerging stress. Great Lakes Compact diversion pressure. What was a Western problem is now the operating reality across most of the country — with Eastern institutions less equipped for the analytical infrastructure the work requires.
EPA's April 2024 CERCLA designation of PFOA/PFOS. The NPDWR with enforceable MCLs in 2027. Every major source-water assessment now needs PFAS characterization integrated with the broader sustainability analysis — expanding the analytical scope without expanding the analytical capacity.
These pressures arrive simultaneously on the same water-resource agencies and councils that were already operating at the limit of their analytical infrastructure. The methodology supporting the response has to operate at multi-decade horizons, across multiple jurisdictions, on coupled physics that does not stop at jurisdictional boundaries.
What Sets MAGNET Apart
Four architectural decisions specific to integrated water-resource management at basin and compact scale.
Multi-tier, multi-scale — IWRM as platform.
Integrated Water Resources Management is by definition cross-scale, cross-use, and cross-jurisdictional. MAGNET's multi-tier multi-scale framework IS that challenge, operationalized: screening at regional or compact scale, intermediate analysis at basin or sub-basin scale, deep analysis at well-field or watershed-segment scale — on the same federal engines at every tier. Methodology consistency from the Colorado River Compact level down to an individual GSA well-field permit.
Coupled surface-subsurface — properly.
A watershed yields recharge. An aquifer yields baseflow. The two are physically coupled and analytically inseparable. IGW-NET (USGS MODFLOW 6) and SwaNET (USDA SWAT) pass physically-meaningful interface variables — recharge, baseflow, ET, sediment, nutrients — with documented handoffs rather than asserted boundary conditions. The coupling water-resource sustainability actually requires — not two separate modeling exercises stitched together at the report stage.
CMIP6 forcing — for the multi-decade horizon.
A Colorado River allocation operates over decades. A SGMA Groundwater Sustainability Plan runs to 2042 and beyond. An interstate compact reformulation creates the framework for the next half-century. CMIP6 downscaled climate scenarios force SwaNET watershed hydrology and project IGW-NET groundwater-recharge changes under specific climate pathways — forward-looking analysis on the engines federal climate research itself uses.
Federation — across jurisdictions.
DataNET's federated WMS/WFS/WCS architecture pulls USGS NWIS, state monitoring networks across multiple states, tribal water-resource data, and country sources internationally — into one analytical environment. The Observatory architecture supports multi-state compacts, basin-scale councils, and GSA coordination groups. One platform, one methodology, multiple sovereigns — with confidential and public publication modes for the work that requires each.
Water-resource analysis spans physically distinct domains that all interact at basin scale. Each MAGNET platform handles its domain on the federal-agency engine for that physics — coupled through documented handoffs of physically-meaningful quantities.
MAGNET4WATER is analytical water-resources modeling infrastructure on federal-standard engines. It does not resolve water-rights disputes, conduct compact negotiations, allocate water across competing users, or substitute for the political-economy work of multi-jurisdictional water management. What it adds is the defensible quantitative analytical foundation those harder challenges still rest on — methodology consistency across jurisdictions, forward-looking climate-forced analysis, and the multi-tier multi-scale framework integrated water-resource management actually requires.
Pain Points & MAGNET Solutions
SGMA GSP development and revision
MAGNET: IGW-NET (MODFLOW 6) for the groundwater flow model behind every GSP. T-PROGS heterogeneous-K realizations where SGMA-significant geologic heterogeneity matters. UCODE for inverse-problem calibration against documented monitoring. SwaNET-IGW-NET coupling for the surface-water depletion analysis SGMA's interconnected-waters requirement demands — on engines USGS itself maintains.
Compact-scale modeling
MAGNET: Multi-tier multi-scale framework operating at compact scope for screening, basin scale for allocation analysis, sub-basin scale for impact assessment. Same federal engines at every tier. One methodology across signatory states, with the federation architecture to support multi-sovereign coordination — the methodological foundation compact negotiations now operate on top of.
Multi-decade source-water sustainability under climate
MAGNET: CMIP6 downscaled climate scenarios force SwaNET watershed analysis and project IGW-NET groundwater recharge under specific climate pathways. SEAWAT for variable-density saltwater intrusion in coastal aquifers. Forward-looking analysis at the time horizons sustainability planning actually requires — on engines federal climate research itself uses.
Cross-jurisdictional coordination
MAGNET: One platform accessible to multiple state agencies, tribal water-resource departments, federal partners, and international counterparts. Federated DataNET pulls each jurisdiction's monitoring alongside USGS NWIS and NOAA. The Observatory architecture supports joint analysis with confidential modes for pre-decisional work and public modes for the shared record — methodology coordination becomes the operational reality, not a parallel diplomatic exercise.
PFAS source-water assessment integration
MAGNET: IGW-NET with MODFLOW 6 + MT3DMS reactive transport + MODPATH particle backtracking for PFAS source attribution — on the same platform running the broader sustainability analysis. PFAS characterization integrates with source-water sustainability work rather than running as a parallel exercise — methodology consistency between regulatory compliance and resource-management planning.
Equitable-water-resource-allocation analysis
MAGNET: Hierarchical multi-scale framework supports basin-scale sustainability analysis AND community-scale equity overlay on the same model. Federated DataNET integrates demographic data alongside water-resource data. Quantitative analysis of who bears shortage and who receives benefits — integrated with the resource analysis, not bolted onto a deliverable produced for compliance purposes only.
Strategic Value
For state water-resource agency directors, Groundwater Sustainability Agency boards, watershed council leads, interstate compact commissioners, tribal water-resource staff, and the integrated water-resources management community, the architectural commitments translate into three dimensions: resource defensibility — decisions surviving court, compact, and stakeholder review on federal-standard engines with documented data lineage from public sources; cross-jurisdictional coordination — one platform across multiple sovereign agencies with shared methodology and federation architecture for the work multi-jurisdictional water management actually requires; and forward-looking planning — multi-decade water-resource sustainability under CMIP6 climate forcing, on engines federal climate research itself uses.
Ottawa County's salinity emergency was uncovered — not confirmed, uncovered — through science-based modeling on this architecture. Pakistan's Green Pakistan Initiative applied the same architecture to national-scale basin water-resource transformation. Michigan EGLE replaced site-by-site contracting with statewide unified methodology for approximately $30M in documented savings. The same architectural pattern, applied at basin and compact scale, is what integrated water-resources management actually requires in 2026.
Proven for Basin-Scale Water Resources
Three deployments demonstrating the architectural patterns integrated water-resources management actually requires: aquifer sustainability crisis discovery, basin-scale climate-resilient transformation, and statewide methodology consolidation.
Discovery
Ottawa County Salinity
Regional aquifer-sustainability crisis uncovered through science-based modeling — the precedent for SGMA-style sustainability analysis at basin scale
National Strategy
Pakistan Cholistan GPI
Climate-resilient basin water-resource transformation at national scale — the methodology pattern compact-scale and basin-scale work runs on
$30M
Michigan EGLE
Statewide methodology consolidation across community water systems — the portfolio-coherence pattern at state-water-agency scale
Managing water resources across basins where the Colorado Compact reformulation, California SGMA, Ogallala depletion, and Eastern compact disputes all simultaneously demand multi-decade analysis on coupled surface-subsurface physics and climate forcing the historical record does not describe? Read the strategic argument for why the multi-tier, multi-scale framework matters at integrated water-resources management scope.
Read: The Inflection Point →