Canterbury Environmental Data Explorer v3

Groundwater — Nitrate

> 11.3 mg/L (over MAV)

8–11.3 mg/L

5–8 mg/L

2–5 mg/L

< 2 mg/L

No data

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Canterbury Catchments

Loading catchments…

Health Context

Waterborne disease rates, health thresholds and risk context for Canterbury

Discharge Consent Summary

Active discharge-to-land and discharge-to-water consents by type and zone

Data Inventory

All layers in the loaded knowledge file

Site Report

Drop a pin anywhere on Canterbury — generate a factual inventory of all knowledge base features within 1 km or 5 km, with a map. No AI interpretation. All data layers are included regardless of which map layers are toggled on.

Radius:

How to use: Switch to the 🗺 Map tab, click "📍 Click map to place pin" above (it will turn green when active), then click anywhere on the map. Return to this tab to see results and download the report. You can adjust the radius before or after placing a pin.

Canterbury Environmental Explorer v3

Canterbury environmental intelligence dataset

About this tool

This explorer visualises the Canterbury Groundwater Knowledge Base — a consolidated multi-source dataset assembled from ECan ArcGIS APIs, LAWA national environmental monitoring data, Landcare Research S-Map soils, NIWA DataHub climate stations, and public health surveillance data.

Load any canterbury_gw_knowledge.json file generated by the Canterbury Data Extractor to explore all available layers. The map, charts, catchment cards, health context and discharge summaries update automatically to reflect the loaded data.

Data licences

LAWA data: CC BY 4.0 (lawa.org.nz) · ECan data: Crown Copyright · S-Map: Landcare Research · Localities: Stats NZ CC BY 4.0 · NIWA: NIWA licence · Taumata Arowai: Crown Copyright · Health context: EHINZ CC BY 4.0 / PHF Science CC BY 4.0

Disclaimer

This tool is for data exploration and contextual analysis only. It is not a validated risk assessment instrument and should not be used as a substitute for accredited laboratory testing or professional advice. Consult your regional council or a qualified water testing laboratory for water quality concerns.