Canterbury Groundwater Risk Assessment Tool

Indicative assessment only. Safe drinking water can only be confirmed through proper maintenance and accredited laboratory testing.

⚠️ Proxy URL not configured. Open this file in a text editor and set PROXY_BASE to your Vercel deployment URL. See README.md for instructions.

For the most accurate results, enter your bore number (for example M36/0008). You can also enter a Canterbury address or place name — note that some rural addresses may return slightly more generalised results due to limitations in resolving RAPID-numbered rural addresses.

Very low (<1 mg/L N-NO₃)
Low (1–5 mg/L N-NO₃)
Moderate (5–11 mg/L N-NO₃)
High (>11 mg/L N-NO₃ / E. coli risk)

Data sourced from LAWA and partner organisations. Licensed under CC BY 4.0. Source: www.lawa.org.nz

Indicative assessment only. Safe drinking water can only be confirmed through proper maintenance and accredited laboratory testing. Risk levels are estimates informed by publicly available monitoring data, land use context, and hydrogeological knowledge. Individual concentration values are accessible via the results links on each well. Always consult a qualified water testing laboratory and your local health authority for drinking water safety decisions. Monitoring data may be subject to QA delays.