35 Ill. Adm. Code 373.204
Sufficient Isolation Requirements
Section 373
Section 373.204 Sufficient
Isolation Requirements
The applicant shall show that
the facility is sufficiently isolated so that combining with other sources to
aggregate 2,500 P.E. or more if applying per Section 373.103(a), or more than
5,000 P.E. if applying per Section 373.103(b) or (c), is not practical. ]
a) If the facility is not located in a designated facilities
planning area the facility will be considered isolated.
b) If the facility is located in a designated facilities planning
area which has less than the allowable total wastewater load, it will be
considered isolated. If load forecasts suggest that the P.E. limit will be met
within the design life of the facility, the lagoon exemption will be granted
for only a fixed period of time. At each permit renewal, the condition shall
be reevaluated based on actual load increases.
c) If the facility is located in a designated facilities planning
area with more than the allowable total wastewater load, the exemption shall be
denied unless one or more of the following conditions are met:
1) The facility is a permanent feature of an approved facilities
plan for the area.
2) The facility is an interim feature of an approved facilities
plan, in which case the exemption shall be granted with termination conditions
as provided for in the plan.
3) The facility was not addressed in an approved facilities plan,
and all units of government which might be considered capable of providing
service have indicated in writing their inability to do so on equitable terms.
4) There is no completed and approved facilities plan for the
area and the discharge is not located within the area of zoning control of any
municipality or within any sewer district or any other unit of government
capable of providing sewer service. In this case, the isolation criteria shall
be satisfied on an interim basis pending completion and approval of the
facilities plan for the area. In such instances, a lagoon exemption may be
issued for a specified time period, subject to review and extension or
termination after approval of the completed facility plan.