Column Name: SIGNIFICANT_INDUSTRIAL_USERS

Description: A four digit field representing the number of significant industrial users (SIUs) which discharge to a particular pretreatment control authority's treatment works (i.e., a POTW with an approved pretreatment program). Significant industrial users include all categorical industrial users and significant non-categorical industrial users. (Note: Although SIU is defined in the 7/86 Pretreatment Compliance Monitoring and Enforcement Guidance and may be defined in regulation in the future, some POTWs s till use a slightly different definition of SIU. At this time, report the number of identified SIUs subject to the POTW's definition of SIU.)

Envirofacts Table Name(s):

PCS_INDUSTRIAL_USER_INFO

Data Source:

Data Element: SIGNIFICANT INDUSTRIAL USERS
PCS Acronym: SIUS
Data Type: PCI/Audit
WENDB: Yes

Properties:

Type: Character
Length: 4
Optional

Definition Source: Permit Compliance System Data Element Dictionary, June 2, 1997

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Column Name: SIGNIFICANT_INDUSTRIAL_USERS

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