415 ILCS 5/17.1
2021 Illinois Compiled Statutes|Chapter 415 - ENVIRONMENTAL SAFETY|415 ILCS 5/ - Environmental Protection Act.|Title IV - Public Water Supplies

 (from Ch. 111 1/2, par. 1017.1)Sec. 17.1.         (a) Every county or municipality which is served by a  community water supply well may prepare a groundwater protection needs  assessment.  The county or municipality shall provide notice to the Agency  regarding the commencement of an assessment.  Such assessment shall consist  of the following at a minimum:(1) Evaluation of the adequacy of protection afforded     to resource groundwater by the minimum setback zone and, if applicable, the maximum setback zone;(2) Delineation, to the extent practicable, of the     recharge area outside of any applicable setback zones but contained within any area over which the county or municipality has jurisdiction or control;(3) Identification and location of potential primary     and potential secondary sources and potential routes within, and if appropriate, in proximity to the delineated recharge area for each such well;(4) Evaluation of the hazard associated with     identified potential primary and potential secondary sources and potential routes contained within the recharge area specified according to subparagraph (a)(2) of this Section, taking into account the characteristics of such potential sources and potential routes, the nature and efficacy of containment measures and devices in use, the attenuative qualities of site soils in relation to the substances involved, the proximity of potential sources and potential routes and the nature, rate of flow, direction of flow and proximity of the uppermost geologic formation containing groundwater utilized by the well;(5) Evaluation of the extent to which existing local     controls provide, either directly or indirectly, some measure of groundwater protection; and(6) Identification of practicable contingency     measures, including provision of alternative drinking water supplies, which could be implemented in the event of contamination of the water supply.(b) Upon completion of the groundwater protection needs assessment, the  county or municipality shall publish, in a newspaper of general circulation  within the county or municipality, notification of the completion of such  assessment and of the availability of such assessment for public  inspection.  At a minimum, such assessment shall be available for  inspection and copying, at cost, by the general public during regular  business hours at the offices of such county or municipality.  Information  within the groundwater protection needs assessment which is claimed to be  confidential, privileged or trade secret information shall be accorded  protection by the county or municipality pursuant to the Freedom of  Information Act, as amended.  A copy of the assessment shall be filed by  the county or municipality with the Agency and any applicable regional  planning committee within 30 days of completion.(c) If a county or municipality has not commenced to prepare a  groundwater protection needs assessment for a community water supply which  is investor owned, then said owner may notify the county or municipality in  writing of its intent to prepare such an assessment.  The owner may  proceed with the preparation of an assessment unless the county or  municipality, within 30 days of the receipt of the written notice, responds  in writing that an assessment will be undertaken.  Upon receipt of such a  written response, the owner shall not proceed for a period of 90 days.  After this period, the owner may proceed to prepare an assessment if the  county or municipality has not commenced such action.  The owner shall  provide notice to the Agency regarding the commencement of an assessment.  An assessment which is prepared by such an owner shall be done in  accordance with the provisions of subsection (a) of this Section.  Upon  completion of the assessment, the owner shall provide copies of such  assessment to the county or municipality, any applicable regional planning  committee and the Agency within 30 days.(d) The Agency shall implement a survey program for community water  supply well sites.  The survey program shall be organized on a priority  basis so as to efficiently and effectively address areas of protective  need.  Each well site survey shall consist of the following at a minimum:(1) Summary description of the geographic area within     a 1,000 foot radius around the wellhead;(2) Topographic or other map of suitable scale of     each well site denoting the location of the wellhead, the 1,000 foot radius around the wellhead, and the location of potential sources and potential routes of contamination within this zone;(3) A summary listing of each potential source or     potential route of contamination, including the name or identity and address of the facility, and a brief description of the nature of the facility; and(4) A general geologic profile of the 1,000 foot     radius around the wellhead, including depth and age of the well, construction of the casing, formations penetrated by the well and approximate thickness and extent of these formations.(e) Upon completion of a well site survey, the Agency shall provide the  county or municipality, any applicable regional planning committee and,  where applicable, the owner and operator of the  community water supply well, with a report which summarizes the results of the survey.(f) Upon receipt of a notice of commencement of a groundwater protection  needs assessment from a county or municipality pursuant to subsection (a),  or from an owner of an investor owned community water supply pursuant to  subsection (c), the Agency may determine that a well site survey is not  necessary for that locale.  If the county, municipality or other owner does  not complete the assessment in a timely manner, then the Agency shall  reconsider the need to conduct a survey.(g) The Agency may issue an advisory of groundwater contamination hazard  to a county or municipality which has not prepared a groundwater protection  needs assessment and for which the Agency has conducted a well site survey.   Such advisory may only be issued where the Agency determines that existing  potential primary sources, potential secondary sources or potential routes  identified in the survey  represent a significant hazard to the public health or the environment.  The Agency shall publish notice of such advisory in a newspaper of general  circulation within the county or municipality and shall furnish a copy of  such advisory to any applicable regional planning committee.(h) Any county or municipality subject to subsection (a) above, but  having a population of less than 25,000 or 5,000 persons, respectively, may  request, upon receipt of a well site survey report, the Agency to identify  those potential primary sources, potential secondary sources and potential routes which  represent a hazard to the continued availability of groundwaters for public  use, given the susceptibility of the groundwater recharge area to  contamination.  Such Agency action may serve in lieu of the groundwater  protection needs assessment specified in subsection (a) of this Section.  The Agency shall also inform any applicable regional planning committee  regarding the findings made pursuant to this subsection.(i) Upon request, the Agency and the Department of Natural Resources may  provide technical assistance to counties or municipalities in conducting  groundwater protection needs assessments.    (Source: P.A. 89-445, eff. 2-7-96.)