MAXIMUM ALLOWABLE WATER USAGE FOR PLUMBING FIXTURES
Fixture Type	Average Water Consumption	Effective Date
Water Closets (1)     low profile one-piece gravity flush type or     handicap accessible floor mount, gravity flush     closets (min. 17" height)	1.6 gallons per flush (4)	Jan. 1, 1992
Water Closets (1)     flushometer tank of close-coupled two-piece     gravity flush type	1.6 gallons per flush (4)	Jan. 1, 1991
Water Closets     flushometer valve, floor mount	3.5 gallons per flush 2.5 gallons per flush	July 1, 1990 Jan. 1, 1992
Water Closets - wall mount	3.5 gallons per flush	July 1, 1990
Urinals	1.5 gallons per flush 1.0 gallons per flush	July 1, 1990 Jan. 1, 1992
Maximum Flow Rates (gallons per minute = gpm)
Residential sink and lavatory faucets	3.0 gpm	July 1, 1990
Public Lavatory Faucets     (self- closing/metering type (See     Section 913 (d))	Self-closing 0.5 gpm, Metering 0.25 gallons per cycle	July 1, 1990
Public Lavatory Faucets     (where self-closing/metering is not required)	0.5 gpm	July 1, 1990
Showerheads (2,3)	3.0 gpm	July 1, 1990
Other Fixtures	Not regulated to water usage

NOTES:

1. Maximum water usage for all water closets prior to the listed effective date is 4.0 gallons per flush.
2. Showerhead flow rate as tested at 80 psi in accordance with American National Standard A112.18.1
3. Exception: Special purpose safety showers are exempted from minimum flow rate limitations.
4. Average water consumption for low consumption water closets over a range of test pressures shall not exceed 1.6 gpf. The consumption shall not exceed 2.0 gpf at any one test pressure. Conforms to American National Standards A112.19.6.