Build a Water Network District Metered Area Inflow Reconciler
Correlate supervisory flowmeter telemetry with minimum night flow benchmarks to identify hidden pipeline leaks. Generate prioritized acoustic sounding inspection orders for municipal water leak detection teams.
What you are building
The core problem, expected build, and operating context for this challenge.
Correlate supervisory flowmeter telemetry with minimum night flow benchmarks to identify hidden pipeline leaks. Generate prioritized acoustic sounding inspection orders for municipal water leak detection teams.
Water Distribution Loss Control Specialist
Ingest hourly inflow telemetry and customer automated meter reading feeds for designated District Metered Areas (DMAs).
Compute Minimum Night Flow (MNF) between 02:00 and 04:00 to isolate legitimate baseline consumption.
Model expected hydraulic background losses using WNTR pressure-dependent demand calculations.
Synthesize field inspection work orders targeting pipe clusters where unexplained night flows exceed threshold tolerances.
Time-series chart showing DMA inlet flows, night flow thresholds, and an inspection dispatch queue with map overlays.
Synthesize 15-minute resolution DMA flowmeter logs, meter billing sums, and EPANET/WNTR pipe models. Starter examples below are synthetic. They are not downloaded records.
Water Network Tool for Resilience Applies WNTR hydraulic analysis routines to calculate theoretical background leakage based on average operating pressure across the DMA.
langfuse, wntr, scipy. Langfuse provides observability and operational tracing for multi-step hydraulic anomaly detection and dispatch pipelines. Local Python execution runtime with hosted LLM for structuring water loss inspection briefs.
Submit runnable source, pinned dependencies, setup commands, a working interface, example outputs, and a recorded end-to-end demo. Include tests and an action log.
Calculates Net Night Flow by subtracting customer AMR night usage from bulk meter night inflow.
Triggers leak inspection alerts when unexplained night loss exceeds 20% of minimum inflow.
Outputs prioritized street inspection vectors with localized pressure monitoring points.
```json [ { "input": { "dma_id": "DMA-DEIRA-02", "bulk_night_flow_m3h": 68.5, "customer_amr_night_m3h": 18.2, "average_pressure_bar": 3.8, "total_pipe_length_km": 14.5 }, "expected_output": { "net_night_loss_m3h": 50.3, "allowable_background_loss_m3h": 12.4, "unexplained_loss_m3h": 37.9, "leak_alert": true, "recommended_action": "Deploy acoustic correlators along sector mains A and B" } }, { "input": { "dma_id": "DMA-DEIRA-05", "bulk_night_flow_m3h": 22, "customer_amr_night_m3h": 14.5, "average_pressure_bar": 3.2, "total_pipe_length_km": 8 }, "expected_output": { "net_night_loss_m3h": 7.5, "allowable_background_loss_m3h": 6.8, "unexplained_loss_m3h": 0.7, "leak_alert": false, "recommended_action": "Routine monitoring, no immediate dispatch required" } } ] ```
Leak detection dispatches are diagnostic surveys; no valve operations or system pressure adjustments should be executed without utility authorization. Use mock external writes. Require human review before any real deployment.
Participation guide
Leak detection dispatches are diagnostic surveys; no valve operations or system pressure adjustments should be executed without utility authorization. Use mock external writes and human review.
How work is evaluated
Calculates Net Night Flow by subtracting customer AMR night usage from bulk meter night inflow. Triggers leak inspection alerts when unexplained night loss exceeds 20% of minimum inflow. Outputs prioritized street inspection vectors with localized pressure monitoring points.
Runnable source, pinned dependencies, setup commands, working interface, example outputs, recorded demo, tests, and action logs.
Challenge datasets
Public datasets, plus the private datasets you have access to.
How submissions are scored
These dimensions define what the evaluator checks and which criteria separate a passable run from a strong one.
Complete workflow
Ingest hourly inflow telemetry and customer automated meter reading feeds for designated District Metered Areas (DMAs). Compute Minimum Night Flow (MNF) between 02:00 and 04:00 to isolate legitimate baseline consumption. Model expected hydraulic background losses using WNTR pressure-dependent demand calculations. Synthesize field inspection work orders targeting pipe clusters where unexplained night flows exceed threshold tolerances.
Missing or incorrect.
Partly complete, with documented gaps.
Complete, with reproducible evidence.
Correctness and evidence
Calculates Net Night Flow by subtracting customer AMR night usage from bulk meter night inflow. Triggers leak inspection alerts when unexplained night loss exceeds 20% of minimum inflow. Outputs prioritized street inspection vectors with localized pressure monitoring points.
Missing or incorrect.
Partly complete, with documented gaps.
Complete, with reproducible evidence.
Review interface
Time-series chart showing DMA inlet flows, night flow thresholds, and an inspection dispatch queue with map overlays.
Missing or incorrect.
Partly complete, with documented gaps.
Complete, with reproducible evidence.
Safe execution
Leak detection dispatches are diagnostic surveys; no valve operations or system pressure adjustments should be executed without utility authorization.
This dimension contributes its full weight only when the submission satisfies the requirement. Partial credit is not awarded.
What you should walk away with
Ingest hourly inflow telemetry and customer automated meter reading feeds for designated District Metered Areas (DMAs).
Compute Minimum Night Flow (MNF) between 02:00 and 04:00 to isolate legitimate baseline consumption.
Model expected hydraulic background losses using WNTR pressure-dependent demand calculations.
Synthesize field inspection work orders targeting pipe clusters where unexplained night flows exceed threshold tolerances.
Reference links and supporting material
Synthesize 15-minute resolution DMA flowmeter logs, meter billing sums, and EPANET/WNTR pipe models. Supplied starter examples are synthetic, not source extracts.
Challenge setup
Configuration summary for this challenge.
Challenge input
Input details are not configured.
Langfuse
Open-source LLM observability and evals.
Evaluated output
No output checks are configured.
- Ingest hourly inflow telemetry and customer automated meter reading feeds for designated District Metered A...
- Calculates Net Night Flow by subtracting customer AMR night usage from bulk meter night inflow. Triggers le...
- Time-series chart showing DMA inlet flows, night flow thresholds, and an inspection dispatch queue with map...
- 2 public reference cases
- 2 configured tools
Summary shows the first task, up to three tools, and up to three evidence items. Open the technical recipe to view all configured items.
View technical recipe
Configured tools
- Langfuse · Optional
- Langfuse · Optional
Evaluation contract
- Complete workflow · Weight 40
- Correctness and evidence · Weight 30
- Review interface · Weight 20
- Safe execution · Weight 10
Reference cases
- 2 public reference cases
Workflow tasks
No workflow tasks are configured.
Recipe freeze marker
No recipe freeze time is recorded.