---
title: "List EPA ECHO facilities"
method: GET
path: "/v1/employers/{employer_id}/epa-facilities"
tags: ["Employers"]
---

# List EPA ECHO facilities

`GET /v1/employers/{employer_id}/epa-facilities`

Per-facility EPA ECHO records for an employer.

Each row is one EPA-registered facility under this employer's
`(name_normalized, state, zip5)` identity. Multi-site operators
(e.g. Tyson with dozens of plants) will return multiple rows; the
summary tile on the employer page rolls these up via
`epa_inspection_count`, `epa_formal_action_count`, etc., and this
endpoint backs those numbers with the underlying facility roster.

Columns surface the same dimensions ECHO does in its Detailed
Facility Report -- permits held (air / water / RCRA / TRI),
quarters of significant noncompliance, inspection count + last
inspection date, formal enforcement actions, total penalties,
geographic info (street, city, state, zip5, county, lat/long).
Each row carries the EPA `registry_id` so callers can drill into
https://echo.epa.gov/detailed-facility-report?fid=<registry_id>
for the agency's authoritative record.

Lookup is by `employer_id` directly -- EPA's source data carries
zip5 so the canonical deterministic UUID applies (sync.py builds
the employer_id column at sync time). Ordered: noncompliant +
higher-penalty facilities first, so the riskier facilities appear
on the first page of results.

Metered: one lookup per call, same as the other detail endpoints.
Default limit 50 (higher than other detail endpoints) because
multi-state operators routinely have 20-100 facilities and one
page should cover the typical case.

## Path parameters

- `employer_id` string, required

## Query parameters

- `limit` integer
- `offset` integer

## Headers

- `X-Api-Key` string

## Response `200`

Successful Response

- unknown

## Other responses

- `422` — Validation Error

---

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