Ill. Admin. Code tit. 77, § 905.APPENDIX A – Illustrations and Exhibits

Section 905.ILLUSTRATION X Illinois Raised Filter Bed

Section 905.EXHIBIT A Sizing Requirements Section 905.EXHIBIT B Batch Treatment Aeration Tank Design Requirements Section 905.EXHIBIT C Filter Bed Cross Section (Side View) Section 905.EXHIBIT D Filter Bed Cross Section (End View) Section 905.EXHIBIT E Sizing Requirements Using Soils Investigation Information

	RESIDENTIAL	NON-RESIDENTIAL
U.S./GALS	BEDS 4 GAL/SQ FT Minimum SQ FT	SUGGESTED BED SIZE Minimum	BEDS 2.5 GALS/SQ FT Minimum SQ FT	SUGGESTED BED SIZE Minimum
300	75 SQ/FT	7'6" X 10'0"	120 SQ/FT	10'0" X 12'0"
450	112.5 SQ/FT	10'0" X 11'3"	180 SQ/FT	12'0" X 15'0"
500	125 SQ/FT	10'0" X 12'6"	200 SQ/FT	12'0" X 17'0"
600	150 SQ/FT	12'0" X 12'6"	240 SQ/FT	15'0" X 16'0"
800	200 SQ/FT	12'0" X 16'8"	320 SQ/FT	16'0" X 20'0"
1,000	250 SQ/FT	12'0" X 21'0"	400 SQ/FT	20'0" X 20'0"
1,100	275 SQ/FT	12'6" X 22'0"	440 SQ/FT	20'0" X 22'0"
1,200	300 SQ/FT	15'0" X 20'0"	480 SQ/FT	20'0" X 24'0"
1,300	325 SQ/FT	15'0" X 22'0"	520 SQ/FT	20'0" X 26'0"
1,400	350 SQ/FT	18'0" X 20'0"	560 SQ/FT	20'0" X 28'0"
1,500	375 SQ/FT	18'0" X 21'0"	600 SQ/FT	20'0" X 30'0"
1,600			640 SQ/FT	2 @ 16'0" X 20'0"
1,700			680 SQ/FT	2 @ 17'0" X 20'0"
1,800			720 SQ/FT	2 @ 18'0" X 20'0"
2,000			800 SQ/FT	2 @ 20'0" X 20'0"
2,100			840 SQ/FT	2 @ 20'0" X 21'0"
2,200			880 SQ/FT	2 @ 20'0" X 22'0"
2,400			960 SQ/FT	2 @ 20'0" X 24'0"
2,500			1,000 SQ/FT	2 @ 20'0" X 25'0"
3,000			1,200 SQ/FT	2 @ 24'0" X 25'0"
12,000			4,800 SQ/FT	8 @ 24'0" X 25'0"

Section 905.APPENDIX A Illustrations and Exhibits

Section 905.ILLUSTRATION X Illinois Raised Filter Bed

Section 905.EXHIBIT B Batch Treatment Aeration Tank Design Requirements

Section 905.APPENDIX A Illustrations and Exhibits

Section 905.ILLUSTRATION X Illinois Raised Filter Bed

Section 905.EXHIBIT C Filter Bed Cross Section (Side View)

Section 905.APPENDIX A Illustrations and Exhibits

Section 905.ILLUSTRATION X Illinois Raised Filter Bed

Section 905.EXHIBIT D Filter Bed Cross Section (End View)

NOTE: CROWNING SHOWN FOR TORPEDO SAND APPLIES TO MANTLE AREA ONLY

Section 905.APPENDIX A Illustrations and Exhibits

Section 905.ILLUSTRATION X Illinois Raised Filter Bed

Section 905.EXHIBIT E Sizing Requirements Using Soils Investigation Information

Design Group	Percolation Rate Equivalent
I	Unsuitable
II	10 minutes/inch
III	15 minutes/inch
IV	20 minutes/inch
V	23 minutes/inch
VI	25 minutes/inch
VII	30 minutes/inch
VIII	35 minutes/inch
IX	40 minutes/inch
X	50 minutes/inch
XI	70 minutes/inch
XII	90 minutes/inch

(Source: Old Illustration X repealed at 9 Ill. Reg. 20738, effective January 3, 1986; new Illustration X added at 27 Ill. Reg. 3074, effective February 10, 2003)

(Source: Added at 27 Ill. Reg. 3074, effective February 10, 2003)