Illinois Administrative Code
Title 35 - ENVIRONMENTAL PROTECTION
Part 620 - GROUNDWATER QUALITY
Subpart B - GROUNDWATER CLASSIFICATION
Section 620.201 - Groundwater Designations

Universal Citation: 35 IL Admin Code ยง 620.201

Current through Register Vol. 48, No. 38, September 20, 2024

All groundwaters of the State are designated as:

a) One of the following four classes of groundwater in accordance with Sections 620.210 through 620.240:

1) Class I: Potable Resource Groundwater;

2) Class II: General Resource Groundwater;

3) Class III: Special Resource Groundwater;

4) Class IV: Other Groundwater;

b) A groundwater management zone in accordance with Section 620.250; or

c) A groundwater management zone as defined in 35 Ill. Adm. Code 740.120 and established under 35 Ill. Adm. Code 740.530.

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