1. Scope
1.1 This specification covers requirements, test methods, materials, and marking for polyethylene (PE), open bottom, buried arch-shaped chambers of corrugated wall construction used for collection, detention, and retention of stormwater runoff. Applications include commercial, residential, agricultural, and highway drainage, including installation under parking lots and roadways. 1.2 Chambers are produced in arch shapes with dimensions based on chamber rise, chamber span, and wall stiffness. Chambers are manufactured with integral feet that provide base support. Chambers may include perforations to enhance water flow. Chambers shall meet test requirements for arch stiffness, flattening, and accelerated weathering. 1.3 Experience has shown that chambers produced from different means of manufacture require different standards for qualification. This specification includes chambers and end sections produced by injection molding only. 1.4 Analysis and experience have shown that the successful performance of buried plastic structures depends upon the type and depth of bedding and backfill and care in installation. Guidance on structural design relating to soil-structure interaction is outside the scope of this specification. This specification includes requirements for the manufacturer to provide chamber installation instructions to the purchaser. 1.5 The values stated in inch-pounds are to be regarded as the standard. The SI units in parentheses are given for information only. 1.6 This specification does not purport to address water quality issues or hydraulic performance requirements associated with its use. It is the responsibility of the user to ensure that appropriate engineering analysis is performed to evaluate the water quality issues and hydraulic performance requirements for each installation. 1.7 The following safety hazards caveat pertains only to the test method portion, Section 6, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
This specification promotes consistency in design and manufacturing of PE stormwater chambers useful to engineers, manufacturers, and users such as municipalities, states, and contractors involved in design, specification, and installation of stormwater detention/retention systems.
Keywords
ASC; arch stiffness constant; chamber; corrugated wall; end cap; detention; drainage; exfiltration; first flush; infiltration; PE; polyethylene; retention; stormwater; sub-surface; thermoplastic; underground
The title and scope are in draft form and are under development within this ASTM Committee.
Citing ASTM Standards
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