Indiana Administrative Code
Title 327 - WATER POLLUTION CONTROL DIVISION
Article 5 - INDUSTRIAL WASTEWATER PRETREATMENT PROGRAMS AND NPDES
Rule 23 - Wastewater Treatment Plant Classification and Operator Certification
Section 23-3 - Classification of nonindustrial wastewater treatment plants

Universal Citation: 327 IN Admin Code 23-3

Current through September 18, 2024

Authority: IC 13-14-8; IC 13-18-11-2; IC 13-18-11-13

Affected: IC 13-18-11

Sec. 3.

A nonindustrial wastewater treatment plant is classified based on the design population equivalent of the plant as follows:

(1) Class I-SP includes all waste stabilization ponds, whether controlled discharge or continuous discharge, regardless of flow.

(2) Class I includes wastewater treatment plants having a design population equivalent of less than two thousand (2,000).

(3) Class II includes wastewater treatment plants having a design population equivalent:

(A) equal to or greater than two thousand (2,000); and

(B) less than ten thousand (10,000).

(4) Class III includes wastewater treatment plants having a design population equivalent:

(A) equal to or greater than ten thousand (10,000); and

(B) less than or equal to forty thousand (40,000).

(5) Class IV includes wastewater treatment plants having a design population equivalent greater than forty thousand (40,000).

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