Move from Gate Monitoring to Source Monitoring.
Detect, verify, and prove illegal riverbed sand extraction—at basin scale—using a layered workflow: weekly satellite alerts → 0.5m verification → drone volumetrics → LiDAR forensic audits.
A “Basin Watchdog” for enforcement, revenue protection, and scientific replenishment
Traditional systems focus on transport passes and checkposts. Our framework closes the loop at the source: it monitors the river, the lease boundary, and the unleased buffer—so violations are detected early and proven fast.
Continuous basin surveillance
Multispectral satellite change detection spots new access roads, fresh excavation signatures, and turbidity signals from active dredging.
Rapid verification & volumetrics
Escalate only high‑probability targets to 0.5m imagery and drone photogrammetry—calculate extracted volumes vs permitted limits.
Evidence‑ready enforcement
Generate digital evidence packs (satellite + drone + LiDAR) and apply a graded penalty matrix for uncontestable recovery and compliance.
The operational gap
Cameras see the road, not the river. Illegal excavation often happens outside lease areas—hidden by bends, vegetation, or temporary access roads. Without source monitoring, enforcement becomes reactive and disputable.
- Unauthorized extraction outside lease boundary
- Unreported volumes and royalty leakage
- Rapid riverbank damage and habitat loss
- Weak linkage between permits and on-ground extraction
How it works: a 4‑level escalation workflow
A cost‑efficient method that moves from wide coverage to courtroom‑grade proof.
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Level 1 — Alert layer
Regional surveillance (weekly)
Satellite indices flag “green / minor variance / high‑probability anomaly” zones and detect new access tracks and turbidity.
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Level 2 — Slider check
High‑resolution verification (0.5m)
Confirm suspected excavation and stockpiles with targeted high‑res imagery before deploying field assets.
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Level 3 — Volumetrics
Drone photogrammetry
Compute extracted volume and compare with permitted limits (e.g., 15,000 m³ vs 10,000 m³) to quantify violations.
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Level 4 — Forensic evidence
LiDAR audit
Centimeter‑level “bare earth” models provide tamper‑proof depth proof—even through vegetation—for legal enforcement.
Platform modules
Deploy as a pilot cluster and scale statewide through phased rollouts.
Integration with i4MS
A “digital handshake” between transport permitting and source monitoring.
- Link ANPR / weighbridge / e‑pass to lease bookings
- Instant alerts when extraction is detected outside a valid lease
- Single command view: gate events + river events
3D GIS Command Center
Real‑time dashboard for hotspots, variance, and action queues.
Scientific replenishment
Pre‑monsoon vs post‑monsoon surveys + replenishment modelling for sustainable extraction limits.
- Seasonal DoD (DEM of Difference) for replenishment assessment
- Sediment transport capacity models (e.g., Ackers–White)
- Evidence-based “safe extraction” thresholds
Open data & self‑certification
Transparency that improves compliance and reduces disputes.
- Public map of valid lease boundaries vs illegal zones
- License-holder dashboards: quota usage and compliance status
- Community anomaly reporting for rapid verification
Evidence-based penalty system
Automate recovery with standardized, defensible proof.
- Digital evidence pack: satellite report + drone orthophoto + LiDAR depth proof
- Graded penalty matrix (volume extracted, riverbank damage, depth violation)
- End-to-end traceable audit trail
1 km buffer zone surveillance
Extend monitoring beyond the ghat to detect hidden activity.
- Unleased access roads and stockpiles
- Bankline changes and new pits
- Automated “alert → verify → act” workflow
Implementation roadmap
Start with a pilot cluster (calibration + validation), then expand district-wide and statewide.
Pilot & calibration
Deploy a pilot in priority basin stretches (e.g., Rushikulya). Validate DSR, calibrate satellite alerts, and establish volumetric baselines.
District rollout
Scale drone teams, integrate collectorate workflows, and operationalize evidence pack generation and penalties.
Statewide command center
Full API link with i4MS, statewide dashboard, automated compliance reporting, and continuous replenishment monitoring.
FAQ
Does this replace existing checkpost / i4MS systems?
No. It complements them by adding source monitoring and linking extraction evidence to the permit and transport chain.
How do you keep operational costs under control?
The funnel approach uses basin-wide satellite screening first, and escalates only high‑probability targets to high‑res imagery, drones, and LiDAR.
Can the platform support scientific replenishment studies?
Yes. Seasonal surveys and replenishment models help define safe extraction limits and validate DSR/SoI assumptions.
Talk to Geoid Resources
Share your basin, current monitoring setup, and enforcement challenges. We’ll respond with a pilot plan, dataset requirements, and an implementation schedule.
Upload your lease KML/KMZ + a sample DSR/SoI to accelerate the pilot design.