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EF/ICR logo Column Name: TTHM

Description: Total trihalomethanes (TTHM) = the sum of the mass concentrations of chloroform, Bromodichloromethane (BDCM), Dibromochloromethane (DBCM) and bromoform in micrograms/L. To calculate the sum, data below Minimum Reporting Level (MRL) are set equal to zero. If any analyte is missing, this value will not be calculated (i.e., the value will be null).

Envirofacts Table Name: TUXDBP

Data Source:


Definition Source: Data Element Dictionary for the Information Collection Rule Auxiliary 1 Database.

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