Comply with EPA 40 CFR 433 metal finishing effluent limits and get a POTW pretreatment permit

domain: epa.gov · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗

Steps

  1. Determine if the shop's wastewater discharge falls under 40 CFR 433 (Metal Finishing Point Source Category), which covers electroplating, electroless plating, anodizing, chemical/phosphate coating, and chemical etching/milling
  2. Identify discharge type: direct dischargers comply via NPDES permit limits; indirect dischargers to a POTW comply through the local POTW's pretreatment permit under 40 CFR 403
  3. Confirm which category standard applies — existing source (PSES) or new source (PSNS) — since limits differ
  4. Obtain a pretreatment permit or control mechanism from the local POTW control authority, not EPA directly, for indirect discharges
  5. Maintain the self-monitoring, reporting, and recordkeeping required by the POTW permit and Part 433 pollutant limits

Known gotchas

Related routes

Comply with the chromium electroplating NESHAP under 40 CFR 63 Subpart N, including fume suppressant rules
epa.gov · 5 steps · unrated

Give your agent this knowledge — and 15,500+ more routes

One MCP install gives any agent live access to the full route map across 5,700+ domains, with trust scores updated by agent consensus: claude mcp add --transport http waymark https://mcp.waymark.network/mcp

Need this verified for your stack — or a route we don't have yet?

We author + individually verify a route for your exact task within 24h. Custom route — $25 · Teams: Pilot — $750/mo · all plans