Commercial, Industrial & Institutional Services

Please note: As of December 16, 2015 some of the efficiency requirements have changed. The information below has been updated to reflect the changes.

All plumbing installed, replaced, or moved in any new or existing service shall be high efficiency fixtures and shall meet the following minimum requirements:

Faucets
  • Lavatory Faucets: Other than public lavatory or metering faucets, shall deliver 1.5 gallons or less per minute.
  • Metered Faucets: Self closing metering faucets shall be installed on lavatories intended to serve the transient public, such as those in, but not limited to:
    • Service stations
    • Train stations
    • Airports
    • Restaurants
    • Convention halls
  • Metered faucets shall deliver no more than 1 / 4 gallons of water per use. Self closing faucets shall deliver no more than .5 gpm.
  • Public Lavatory: Other than metering, faucets shall deliver .5 gallons, or less, of water per minute
  • Kitchen, Bar and Utility/Service (other than hand-washing sinks) faucets shall by default deliver 1.8 gallons per minute or less, and may be constructed to allow a temporary flow of 2.2 gallons, or less, of water per minute.
Dishwashers
Dishwashers shall meet the current specifications set by the Consortium for Energy Efficiency's (CEE) High Efficiency Specifications for Commercial Dishwashers and any and all amendments thereto.

Steamers

Steamers shall meet the current specifications set by the CEE's High Efficiency Specifications for Commercial Steamers and any and all amendments thereto.

Pre-Rinse Spray Valves

Pre-Rinse spray valves shall:
  • Deliver 1.3 gallons, or less, of water per minute based on tested performance by the FSTC.
  • Meet the cleaning performance standard of 26 seconds per plate or less, based on the ASTM Standard Test
  • Method for Performance of Pre - Rinse Spray Valves and any and all amendment thereto.
Dipper Wells
Dipper well flow rate shall be 0.3 gallon, or less, per minute.

Ice Machines

Ice machines shall:
  • Be Energy Star qualified
  • Meet the current highest tier specifications set by the CEE's High Efficiency Specifications for Air Cooled Ice Machines
Clothes Washers
  • Commercial clothes washers shall meet the minimum Modified Energy Factor, MEF, and maximum Water Factor, WF, corresponding to the highest efficiency machines on the most recent CEE High Efficiency Specification for Commercial Family Sized Clothes Washers and any and all amendments thereto.
  • As of January 1, 2007, the highest efficiency machines have a minimum MEF of 2.2 and a maximum WF of 4.5.
HVAC Equipment, Heating, Ventilation & Air Conditioning
HVAC Equipment shall eliminate all once-through cooling, replacing with an air-cooled system or a cooling tower. For cooling towers, the following are recommended:
  • Flow submeters on make up and bleed off lines. Submeters should, at the minimum, be capable of totaling the flow
  • Conductivity controllers that activate the blowdown valve for dissolved solids control
  • Overflow sensors on the overflow pipes
  • Baffles or drift eliminators
  • All cooling towers shall be monitored and maintained in a manner consistent with applicable regulatory guidelines and manufacturers' recommendations

Drinking Water and Linens upon Request
Under the district’s water conservation requirements:

  • Restaurants may serve drinking water only upon request
  • Hotels and other lodging establishments must offer customers the option to decline daily laundering of linens and towels.
To help you get out the word to your customers, MMWD is offering free table tents and linen cards while supplies last. To place an order, please email the Water Conservation Department.