All premis­es intend­ed for human habi­ta­tion or occu­pan­cy shall be pro­vid­ed with a potable water sup­ply.  The potable water sup­ply shall not be con­nect­ed to non-potable water and shall be pro­tect­ed against back­flow and back­siphonage in accor­dance with the require­ments of the “Illi­nois Plumb­ing Code”.  Each potable water sup­ply shall pro­vide quan­ti­ties of water that are suf­fi­cient for the drink­ing, culi­nary and san­i­tary needs of the dwelling or premis­es served.  A min­i­mum sys­tem pres­sure of twen­ty (20) pounds per square inch shall be main­tained through­out each potable water supply.

All water sys­tems which receive their source of water from ponds, lakes, streams, rivers or oth­er sur­face col­lec­tors of water shall be designed, con­struct­ed, and oper­at­ed in accor­dance with the “Sur­face Water Treat­ment Code”.  No sur­face water shall be uti­lized as a potable water sup­ply unless the Health Author­i­ty has review and approved the sup­ply and its components.

Cis­terns are not a Depart­ment of Pub­lic Health rec­og­nized source of potable water for pri­vate use.  There­fore, indi­vid­u­als may install cis­terns with­out approval from the South­ern Sev­en Health Depart­ment.  The Health Author­i­ty is not allowed to test any water sam­ple from a pri­vate use cis­tern.  Cis­terns shall not be used as a potable water sup­ply for uses oth­er than pri­vate applications.

The use of cis­terns to serve the pub­lic (restau­rants, retail stores, camp­grounds, etc.) is pro­hib­it­ed, except where ade­quate ground­wa­ter resources are not avail­able.  Cis­tern water shall receive treat­ment in accor­dance with the “Sur­face Water Treat­ment Code”.  No cis­tern water shall be uti­lized as a pub­lic potable water sup­ply unless the Health Author­i­ty has reviewed and approved the sup­ply and its components.