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EF/ICR logo Column Name: EXPNH3_N


Description: Expert ammonia concentration (mg/L as NH3-N). Values are based on expert judgement. For this field, an expert has evaluated the comments submitted by the utilities. If the correct value was entered in the comment field, the expert will enter the correct value here. Expert intervention occurs for those values = 0.1 with a comment or a value of 0. All ammonia concentrations set = "-333" are changed by expert intervention as follows: (1) If an actual concentration value was reported by utilit ies in the comment field, the value replaces "-333" and is entered here. (2) If the value is reported as below detection in the comment field, "-999" replaces "-333." The user may want to use this expert value field instead of NH3_N.

Envirofacts Table Name: TUXWQP

Data Source:

Properties:

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


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