Tool detail

locus-pfas-occurrence

Returns EPA UCMR 5 PFAS detection/non-detection results for a US address or list of public water system IDs.

Categories: Real estate, Weather environment

Use when

check PFAS test results for the water system near an address
look up PFAS occurrence data by PWSID

Not for

not a tap-water reading - entry-point sample data only
containment in a service area is not proof of actual service

Inputs

POST JSON body, all optional: address, latitude/longitude, or pwsids (array of up to 10 water-system IDs)

Admitted input schema

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "minLength": 5,
      "maxLength": 200
    },
    "latitude": {
      "type": "number",
      "minimum": -90,
      "maximum": 90
    },
    "longitude": {
      "type": "number",
      "minimum": -180,
      "maximum": 180
    },
    "pwsids": {
      "type": "array",
      "items": {
        "type": "string",
        "minLength": 0,
        "maxLength": 4096,
        "pattern": "^[A-Z0-9]{4,24}$"
      },
      "minItems": 1,
      "maxItems": 10
    }
  },
  "required": [],
  "additionalProperties": false
}

Endpoint

Method: POST
URL: https://api.locus.report/api/locus-pfas-occurrence

Payment

Protocol: x402
Listed price: 0.01 USDC per call on Base
Payment method: exact
Network: eip155:8453
Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Listed terms are catalog metadata. The caller supplies inputs and calls the tool outside Onelayer. If payment is required, the caller uses a compatible wallet to pay.

Source

Directory: Coinbase x402 Bazaar
Record: POST https://api.locus.report/api/locus-pfas-occurrence
Retrieved: 2026-09-30T20:37:07.382Z
Catalog file SHA-256: 6837ccddf886f0007cf3727ea9d27faaa5047b51b4f425345c554ce1c271a524
Catalog built: 2026-09-30T22:31:58.034Z