# Read New Zealand water quality and supply registers

Preview: Check New Zealand coastal swim safety alerts, river freshwater quality parameters, and official registered drinking-water supplies.

Canonical: https://aroai.com/tools/nz_water_quality/

## Tool reference

MCP tool ID: `nz_water_quality`. Availability: Preview. Country: New Zealand.

Credit use: Free.

## Input schema

```json
{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "dataset": {
      "type": "string",
      "enum": [
        "coastal_swim_quality",
        "freshwater_quality",
        "drinking_water_supplies"
      ],
      "description": "Choose coastal_swim_quality for coastal swim quality and swimming condition alerts; freshwater_quality for regional river and lake water quality monitoring indicators; drinking_water_supplies for official registered drinking-water supplies."
    },
    "location": {
      "description": "Beach or coastal swimming spot name or slug for coastal_swim_quality (e.g. Takapuna, Mission Bay, Piha).",
      "type": "string",
      "maxLength": 100
    },
    "search": {
      "description": "Text query across coastal swimming spots or freshwater sites.",
      "type": "string",
      "maxLength": 100
    },
    "region": {
      "description": "Regional identifier for freshwater_quality, as one of: northland, auckland, waikato, bay-of-plenty, gisborne, hawkes-bay, taranaki, manawatu-whanganui, wellington, tasman, nelson, marlborough, west-coast, canterbury, otago, southland. Not supported for drinking_water_supplies.",
      "type": "string",
      "maxLength": 100
    },
    "site_name": {
      "description": "Freshwater monitoring site name or identifier (e.g. Awanui or regional site code).",
      "type": "string",
      "maxLength": 150
    },
    "parameter": {
      "description": "Freshwater indicator parameter: ECOLI (bacteria), MCI (macroinvertebrates), TON (nitrogen), NH4N (ammonia), DRP (phosphorus), CLAR (clarity), or any.",
      "default": "any",
      "type": "string",
      "enum": [
        "ECOLI",
        "MCI",
        "QMCI",
        "TN",
        "TP",
        "TON",
        "DRP",
        "NH4",
        "NO3-N",
        "DIN",
        "TURBFNU",
        "EC",
        "PH",
        "CL",
        "any"
      ]
    },
    "min_risk": {
      "description": "Minimum alert risk level for coastal_swim_quality: GREEN, AMBER, RED, RED+, or BLACK.",
      "type": "string",
      "enum": [
        "GREEN",
        "AMBER",
        "RED",
        "RED+",
        "BLACK"
      ]
    },
    "query": {
      "description": "Search text for drinking-water supply name, supplier, or community (e.g. Akaroa).",
      "type": "string",
      "maxLength": 100
    },
    "supply_id": {
      "description": "Official drinking-water supply identifier (e.g. AKA001).",
      "type": "string",
      "maxLength": 50
    },
    "limit": {
      "default": 20,
      "description": "Maximum results to return (1–50, default 20).",
      "type": "integer",
      "minimum": 1,
      "maximum": 50
    }
  },
  "required": [
    "dataset",
    "limit"
  ],
  "additionalProperties": false
}
```

## Example input

```json
{
  "dataset": "coastal_swim_quality",
  "location": "Takapuna"
}
```

## Usage notes

- Covers coastal swim quality alerts and swimming conditions for monitored beaches.
- Freshwater river and lake indicators cover regional monitoring across New Zealand.
- Drinking-water supplies check registered community suppliers; registration does not verify water potability on a given day.
- Free source; does not consume credits.