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Effluent Monitoring Intent

Note: EPA no longer updates this information, but it may be useful as a reference or resource.

This web site provides query access to over 200 million monitoring records originally reported to EPA via the Legacy STORET System.

Code Name
SC State Compliance Monitoring
SW State WLA (waste load allocation)

State Intensive Survey

SB State Bioassay Study
EC EPA Compliance Monitoring
EW EPA WLA (waste load allocation)
EI EPA Intensive Survey
EB EPA Bioassay Study
SM Self-monitoring
2C Form 2C--126 Priority Toxic Pollutants

STORET Data Access

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