HomeMy WebLinkAbout2013 Oct 22 - Memo from Infiltrators Systsms Inc, �
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M E M O R A N D U M
DATE: October 22, 2013
TO: Regulators, Designers, Distributors and Contractors
RE: Chamber Load Ratings
Infiltrator Systems Inc. (ISI) manufactures and warrants Infiltrator/Quick4�brand chambers and the
TM ' TM tructuralloadin
r . Please note the followin chamber s g
ARC Biodiffuser chambe s g
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recommendations:
• H-10 Chambers: 16,000 Ib/axle load rating with a minimum of 12" of compacted soil cover
and installed per installation instructions. Recommended for non-traffic installations. .
- 4 ft maximum cover on bed instaliations and 8 ft maximum cover on trenches.
• HD Chambers: 16,000 Ib/axle load rating with a minimum of 12" of compacted soil cover
and installed per installation instructions. Recommended for residential driveway
installations but not applicable for commercial traffic installations.
- 5 ft maximum cover on bed installations and 8 ft maximum cover on trenches. '
• H-20 Chambers:32,000 Ib/axle load rating with a minimum of 18" of compacted soil cover
and installed per installation instructions.Suitable for commercial traffic loading.
- 8 ft maximum cover on bed and trench installations.
Ali chambers may be installed with a minimum of b" of compacted soil cover installed per installation :
instructions for a load rating of 4,000 Ib/axle. All chambers with shallow (at least 6" but less than 12")
soii cover are recommended for non-traffic installations.
Please contact me if I can be of further assistance,
Best Regards, Dennis
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1 Dennis F. Hallahan, P.E.
� Technical Director
Infiltrator Systems Inc.
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6 Business Park Road•P.O.Box 768•Old Saybrook,CT 06475•Phone 860.577.7000•Fax 860.577.7001•www.infiltratorsystems.com