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Data

For six of the biggest federal environmental databases, the States provided an average of 94% of the data.

In a joint effort with the EPA, ECOS determined the States are the primary organizations collecting data on environmental pollutant reporting.

Percentage of Data Collected by States in 6 National Systems

System Type of Data in System % Data Collected by States
AIRS/AFS air pollution B stationary sources 99
AIRS/AQS air pollution B ambient sources 99
SDWIS drinking water 99
PCS wastewater discharges 83
STORET waterway quality 90
BRS hazardous waste 92

The full report: State Environmental Data in EPA's National Systems