17 DEC 2003
DESIGN DRAWINGS. Drawings should conform
C of ER 1110-
345-700. Suggested design and detail drawings are listed below. All the listed drawings
may not be required, especially for low flow, package filtration units. Additionally, the list
may not be exhaustive. Project-specific needs will dictate the required drawings.
System general arrangement plan.
System sectional elevation.
Pumps for backwash and recirculation.
Basin and filter shell detail (section and plan).
Underdrain installation detail.
Media installation detail.
Backwash supply and holding facilities.
Washwater trough detail (mounting, weir, discharge).
Piping, valves, and pump detail.
Instrument panel layout.
PFD and PID detail.
Chemical feed equipment.
Carriage and rail detail (for traveling bridge system).
DESIGN ANALYSIS REQUIREMENTS. A design analysis report must
accompany all new construction projects and old projects involving major alteration or
expansion of existing facilities, unless specifically exempted. The requirements and pro-
cedures for the preparation of the design analysis must be in accordance with Appendix
The design analysis is an assembly of all functional and technical require-
ments, and all design provisions and calculations applicable to project design summa-
rized in a format appropriate for:
Review, approval and record.
Revision of designs during construction as required.
Use in adapting designs to other sites.
O&M enhancement and cost reduction.
The design analysis consists of three basic sections: general description, de-
sign requirements and provisions, and O&M provisions. The general description will dis-