Waymark / Routes / echo.epa.gov Retrieve NPDES discharge monitoring report (DMR) limits, results, and violations for a specific permit via EPA ECHO Effluent Charts
domain: echo.epa.gov · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checked community attestations: 0✓ / 0✗
Steps Identify the facility's NPDES permit number from a prior CWA facility search Call getsummarychart with the permit number and date range to get a matrix of effluent parameters by outfall with an overall violation status Call geteffluentchart with the permit, date range, parameter, and/or outfall to retrieve detailed discharge limits, DMR results, and violation flags Use downloadeffluentchart to export the detailed dataset as CSV for a given permit/date range/parameter combination Compare returned limit values against violation flags to identify specific exceedances Known gotchas Effluent Charts data is sourced from ICIS-NPDES DMR submissions, so unsubmitted or late DMRs show as gaps, not automatic violations Outfall- and parameter-level granularity means a single permit can require many geteffluentchart calls to fully enumerate Limit types (daily max, monthly average, etc.) are encoded in the response and must be matched correctly to the corresponding result value
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