Cal. Code Regs. tit. 25 § 2268

Current through Register 2024 Notice Reg. No. 50, December 13, 2024
Section 2268 - Pipe Size
(a) Each lot drain inlet shall be assigned a waste loading value of six (6) fixture units and each park drainage system shall be sized according to Table 2268-1 or as provided herein. Drainage laterals shall be not less than three (3) inches in diameter.
(b) A park drainage system in which the grade, slope, or sizing of drainage pipe does not meet the minimums specified in Tables 2268-1 or 2268-2 shall be designed by a registered engineer for a minimum velocity flow of two (2) feet per second.
(c) Park drainage systems installed without P-traps or vents may be sized for individually vented systems in accordance with Table 2268-1 for individually vented systems.
(d) A park drainage system which exceeds the fixture unit loading of Table 2268-1 shall be designed by a registered engineer.

Table 2268-1

Drainage Pipe Diameter and Number of Fixture Units on Drainage System

Maximum No.Maximum No.Terminal &
of Fixture Unitsof Fixture UnitsRelief Vent
Size of DrainageIndividuallyWet VentedWet Vented
Pipe (Inches)Vented SystemSystemSystem (Inches)
3 35 142
4180 353
53561804
66003564

Table 2268-2

Minimum Grade and Slope of Drainage Pipe

SlopeSlope
Pipe Sizeper 100 ft.Pipe Sizeper 100 ft.
(inches)(inches)(inches)(inches)
22568
32084
415103 1/2
511123

Cal. Code Regs. Tit. 25, § 2268

1. New section filed 7-6-2004; operative 7-6-2004 pursuant to Government Code section 11343.4 (Register 2004, No. 28).

Note: Authority cited: Section 18865, Health and Safety Code. Reference: Section 18873.1, Health and Safety Code.

1. New section filed 7-6-2004; operative 7-6-2004 pursuant to Government Code section 11343.4 (Register 2004, No. 28).