Section 620.201  Groundwater Designations

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.

(Source:  Amended at 21 Ill. Reg. 7869, effective July 1, 1997)