Current through Register Vol. 50, No. 9, September 20, 2024
A. All potable water distribution systems
shall be designed, constructed, and maintained so as to prevent leakage of
water due to defective materials, improper jointing, corrosion, settling,
impacts, freezing, or other causes. Valves and blow-offs shall be provided so
that necessary repairs can be made with a minimum interruption of
service.
B.
1. Any solder or flux which is used in the
installation or repair of any public water system or any plumbing in a
residential or nonresidential facility providing water for human consumption
shall be lead free (i.e., shall not contain more than 0.2 percent lead). Any
pipe, pipe fitting, plumbing fitting, fixture, and any other appurtenance which
is used in the installation or repair of any public water system or any
plumbing in a residential or nonresidential facility providing water for human
consumption shall be lead free (i.e., shall not contain more than a weighted
average of 0.25 percent lead when used with respect to the wetted surfaces of
pipes, pipe fittings, plumbing fittings, fixtures, and any other
appurtenances).
2. Exception. The
lead free requirement of Paragraph B.1 above shall not apply to:
a. leaded joints necessary for the repair of
existing cast iron pipes;
b. pipes,
pipe fittings, plumbing fittings, fixtures and any other appurtenances,
including backflow preventers, that are used exclusively for nonpotable
services such as manufacturing, industrial processing, irrigation, outdoor
watering, or any other uses where the water is not anticipated to be used for
human consumption; or,
c. toilets,
bidets, urinals, fill valves, flushometer valves, tub fillers, shower valves,
service saddles, or water distribution main gate valves that are 2 inches in
diameter or larger.
C.
1. Water
Piping Quality. All potable water pipes, pipe related products and materials
that join or seal pipes and pipe related products shall be evaluated and listed
as conforming with a national consensus product (or material) standard,
ANSI/NSF Standard 61, and NSF/ANSI 372. Any solder or flux which is used in the
installation or repair of any public water system or any plumbing in a
residential or nonresidential facility providing water for human consumption
shall be lead free.
2. Exception.
The lead free requirement of Paragraph C.1 above shall not apply to:
a. leaded joints necessary for the repair of
existing cast iron pipes;
b. pipes,
pipe fittings, plumbing fittings, or fixtures, including backflow preventers,
that are used exclusively for nonpotable services such as manufacturing,
industrial processing, irrigation, outdoor watering, or any other uses where
the water is not anticipated to be used for human consumption; or,
c. toilets, bidets, urinals, fill valves,
flushometer valves, tub fillers, shower valves, service saddles, or water
distribution main gate valves that are 2 inches in diameter or
larger.
D.
[formerly paragraph 12:012-3] Where pumps are used to draw water from a water
supply distribution system or are placed in a system to increase the line
pressure, provision must be made to limit the pressure on the suction side of
the pump to not less than 20 psi (pounds per square inch) gauge. Where the use
of automatic pressure cut-offs is not possible, such pumps must draw water from
a tank, supplied with water from a water distribution system through an air gap
that complies with ASME Standard A112.1.2-2004.
E. [formerly paragraph 12:012-4] All public
water supplies shall be operated and maintained to provide a minimum positive
pressure of 20 psi gauge at all service connections at all times.
The text in this
Section will be effective on January 1, 2013.
AUTHORITY NOTE:
Promulgated in accordance with the provisions of
R.S.
40:4(A)(8),
R.S.
40:5(A)(5)(6), and
R.S.
40:1285.8.
