Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 364 - PROCEDURES AND REQUIREMENTS FOR DETERMINING CONSTRUCTION GRANT PRIORITIES FOR MUNICIPAL SEWAGE TREATMENT WORKS NEEDS › Subpart B - PROCEDURE FOR CALCULATING THE MUNICIPAL DISCHARGE INDEX › Section 364.206 - F6 Factor

Current through Register Vol. 48, No. 28, July 12, 2024
a) F6
				is a factor used to evaluate the environmental impact of a discharge. The F6
				factor is evaluated at the time of the submittal of the pre-application and
				priority scoring summary and is re-evaluated upon Agency approval of the
				facilities plan. At the time of submittal of the pre-application an F6 of 1.0
				is assigned. After facilities planning has been approved F6 will be evaluated
				in accordance with subsection (b).
b)
1) If
				the applicant has an existing sewage collection system and a central sewage
				treatment plant an F6 of 1.0 is assigned.
2) For flood control projects or storm sewers
				an F6 value of 0.1 will be assigned.
3) In cases where a sewage treatment plant is
				proposed to provide treatment for a currently unsewered community, an
				interceptor sewer(s) is proposed to provide service to an unsewered area or
				community, a complete new collection system is proposed for a currently
				unsewered community or extension of an existing collection system is proposed,
				an F6 will be assigned based on the summation of the following, except that F6
				will not be greater than 1.0. If information is not available to score items
				(C), (D), and (E), they will be set equal to zero.
A) If after completion and approval of the
				facilities plan, no points are assigned based on (B), (C), (D), (E) and (F)
				below, F6 shall be 0.
B) One or
				more discharges which are not complying with an effluent standard of 30 mg/1
				BOD and 30 mg/1 suspended solids shall result in the addition of 0.1
				point.
C) If the aquatic
				environment in the receiving stream is polluted, as defined in Section 164.207,
				downstream of the applicant's discharge(s) from drainage tiles serving the
				community 0.1 point shall be added for each full 600 feet of stream degraded to
				a polluted environment as a result of the applicant's activities.
D) If the aquatic environment in the
				receiving stream is semi-polluted, as defined in Section 164.207, downstream of
				the applicant's discharge(s) from drainage tiles serving the community 0.075
				point shall be added for each 600 feet of stream degraded as a result of said
				discharge(s) to a semi-polluted environment as a result of the applicant's
				activities.
E) If the aquatic
				environment in the receiving stream is unbalanced, as defined in Section
				164.207, downstream of the applicant's discharge(s) from drainage tiles serving
				the community 0.05 point shall be added for each 600 feet of stream degraded as
				a result of said discharge(s) to an unbalanced environment as a result of the
				applicant's activities.
F) Points
				from 0.0 to 1.0 shall be given for health hazards in the municipality resulting
				from malfunctioning or inadequate private sewage disposal systems. Assignment
				of points shall be based upon:
i) Severity
				and overall distribution of the health hazard based on the content of the
				facilities plan and field investigations of IEPA in cooperation with the
				Illinois Department of Public Health; and
ii) The legal, financial, institutional and
				managerial capability of the applicant to implement the facility
				plan.