City Letterhead (BAS Dept.) for WPWIN 6/7

BOARD OF<br />

BUILDING AND SAFETY<br />

COMMISSIONERS<br />

___<br />

MARSHA L. BROWN<br />

PRESIDENT<br />

VAN AMBATIELOS<br />

VICE-PRESIDENT<br />

VICTOR H. CUEVAS<br />

HELENA JUBANY<br />

ELENORE A. WILLIAMS<br />

___<br />

December 11, 2008<br />

CITY OF LOS ANGELES<br />

CALIFORNIA<br />

ANTONIO R. VILLARAIGOSA<br />

MAYOR<br />

DEPARTMENT OF<br />

BUILDING AND SAFETY<br />

2319 DORRIS PLACE<br />

LOS ANGELES, CA 90031<br />

____<br />

ANDREW A. ADELMAN, P.E.<br />

GENERAL MANAGER<br />

RAYMOND CHAN<br />

EXECUTIVE OFFICER<br />

____<br />

Mike Fischer<br />

Jay R. Smith Mfg. Co. RESEARCH REPORT: RR 5487<br />

2781 Gunter Park Dr. East EFFECTIVE DATE: 06/01/08<br />

Montgomery, AL 36109 EXPIRATION DATE: 06/01/09<br />

Telephone: 626-333-9942<br />

GENERAL APPROVAL - Renewal - “Enviro-Flo” and “Extra Heavy Duty Enviro-Flow” Polyethylene<br />

Trench Drain Systems, manufactured by J. R. Smith Mfg. Company. See attached list <strong>for</strong> approved models.<br />

DETAILS<br />

These products are modular trench drain systems, pre-cast from corrosion-resistant polyethylene<br />

interlocking modular components <strong>for</strong> on-site installations. The system consists of channels, closing endcaps,<br />

inlet end-caps, catch basins, and grates of selected materials. Channels are pre-cast, sloped or nonsloped<br />

(neutral) and interlocking, having smooth continuous waterway and recesses <strong>for</strong> grating lockdown<br />

devices molded into the channel walls. End-caps are used to seal either ends of the channels or to remove<br />

liquid from the channel. Knockout panels are provided on either ends of the catch basin <strong>for</strong> connection with<br />

the channel. Grates are available in galvanized steel, stainless steel, cast iron, fiberglass, brass, or polymer<br />

concrete. Grates can be solid, per<strong>for</strong>ated, mesh, or slotted. The channels have a built-in slope of 0.6 percent<br />

(0.344 0 )<br />

The approval is subject to the following conditions:<br />

1. These products may be used as open trench drain systems in residential or commercial installations.<br />

2. Each trench drain system shall have a minimum slope of one (1) percent to the point of disposal.<br />

Exception: It may have a minimum slope of 0.6 percent when installed outdoors to collect only rain<br />

water.<br />

3. The products shall be covered with approved grates as recommended by the manufacturer.<br />

4. Joints sealant and joint components shall be of the same material.<br />

5. All joints and connections shall be water-tight and ground to provide a smooth transition in<br />

accordance with Section 94.316.0 of the Los Angeles Plumbing Code (LAPC), 2008 Edition.<br />

6. All corners shall have smooth waterways.<br />

LADBS G-5 (Rev. 7/06) AN EQUAL EMPLOYMENT OPPORTUNITY - AFFIRMATIVE ACTION EMPLOYER<br />

RR 5487<br />

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Jay R Smith Mfg. Co.<br />

Re: Polyethylene Trench Drain<br />

7. No traps shall be allowed in the open drain system ahead of an interceptor or clarifier.<br />

8. All components shall be anchored to and surrounded by a minimum of four inches (4") of continuous<br />

concrete beneath and on all sides.<br />

9. Any use of these products <strong>for</strong> chemical or industrial waste shall be in compliance with the<br />

manufacturer’s specifications, and approved by Industrial Waste Division.<br />

10. The applicant shall stamp the sales brochure in which instructs user/installer to slope the channel bed<br />

an additional 0.4 percent, so that the inner channel contour is actually sloped at a minimum of 1.0<br />

percent as required by Section 94.708.0 of LAPC, 2008 Edition.<br />

11. Installations of these products shall be in accordance with the manufacturer’s instructions.<br />

12. These products shall be permanently marked with the manufacturer’s name and appropriate model<br />

number.<br />

13. Strainers shall be provided with these products in accordance with Section 94.405.0 of LAPC,<br />

2008 Edition.<br />

DISCUSSION<br />

A current production sample was tested and examined by the Mechanical Testing Laboratory. The material<br />

and construction are equivalent to that prescribed by the Los Angeles Municipal Code in quality, strength,<br />

effectiveness, durability and safety.<br />

For this General Approval to be valid on any individual construction project in the <strong>City</strong> of Los Angeles, an<br />

engineer or inspector of the Department of Building and Safety must make a determination that all conditions<br />

of the General Approval required to provide equivalency have been met in the case of each construction<br />

project under consideration.<br />

This approval is granted under Sections 94.301.0, 94.307.0, 94.310.0, 94.313.0, 94.701.0, 94.706.0, 94.708.0<br />

and 94.811.0 of the Los Angeles Plumbing Code, 2008 Edition.<br />

Approved by:<br />

Thomas Liu, Director<br />

Mechanical Testing Laboratory<br />

Engineering Bureau<br />

RR 5487<br />

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Jay R Smith Mfg. Co.<br />

Re: Polyethylene Trench Drain<br />

Prepared by: Yogen R. Thakar<br />

Mechanical Testing Laboratory<br />

Jay R. Smith Mfg. Co.<br />

RR-5487<br />

Polyethylene Trench Drain Systems<br />

List of Approved Models<br />

9930 Series Enviro-Flow Drain Systems:<br />

9930-1 9930-1N 9930-2 9930-2N 9930-3 9930-3N<br />

9930-4 9930-4N 9930-5 9930-5N 9930-6 9930-6N<br />

9930-7 9930-7N 9930-8 9930-8N 9930-9 9930-9N<br />

9930-10 9930-10N 9930-11 9930-11N<br />

9930-12 9930-12N 9930-13 9930-13N<br />

9930-14 9930-14N 9930-15 9930-15N<br />

9931 Series Extra Heavy Duty Enviro-Flow Drain Systems:<br />

9931-1 9931-1N 9931-2 9931-2N 9931-3 9931-3N<br />

9931-4 9931- 4N 9931-5 9931-5N 9931-6 9931-6N<br />

9931-7 9931-7N 9931-8 9931-8N 9931-9 9931-9N<br />

9931-10 9931-10N 9931-11 9930-11N<br />

9931-12 9931-12N 9931-13 9931-13N<br />

9931-14 9931-14N 9931-15 9931-15N<br />

RR 5487<br />

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