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Utilities

Water Efficiency Code Resources#

Water code standards are the minimum efficiency requirements for new developments and in some cases redevelopments (check with Building Services or Development Review for more information). They were informed by and align with the Colorado Water Plan, Utilities Water Efficiency Plan, City Strategic Plan, and Our Climate Future plan.

View energy code standards and resources.

Commercial#

Plumbing Standards

Fixture Type

Max Flow Rate (Code Section 5-126)

Bathroom Faucet (private, excludes I occupancies)

0.5 GPM

Bathroom Faucet (public, metered)

0.25 GPM per cycle

Showerhead (excluding E & I occupancies)

1.8 GPM & WaterSense-labeled

Sink Faucet

1.8 GPM

Urinal

0.5 GPF & WaterSense-labeled

Toilet

1.28 GPF*, 600 MaP & WaterSense-labeled

Bar Sink (food service)

2.2 GPM

GPM: Gallons per minute
GPF: Gallons per flush
     *Dual-flush GPF calculation: average of two reduced flushes and one full flush
MaP: Maximum performance

Graywater Standards

Allowable use: Up to 2,000 gallons per day

Sources: Showers, bathtubs, bathroom and laundry sinks, clothes washing machines

Uses (Code Sec. 5-151): Toilet and urinal flushing

Other requirements per Graywater Design Criteria:

  • NSF/ANSI 350 certified treatment and disinfection system required
  • Potable backup system and dual plumbing
  • Backflow prevention and cross-connection control
Irrigation Standards (includes multifamily)

What are the water conservation standards?
In July 2009, City Council adopted new landscape and irrigation standards for water conservation. They are included in the City's Land Use Code, Section 3.2.1. The purpose is to promote water efficiency through landscapes and irrigation systems that are designed and installed well.

What projects are subject to the standards?
The standards apply to all projects within the city limits that are required to submit a landscape plan (commercial, multi-family and HOA common areas). They do not apply to single-family homes. Duplexes are also included when they are part of a planned unit development. The standards apply to common areas of single-family developments, but do not apply to single-family residences. Irrigation plans are required for developments within the City of Fort Collins.

What do I have to do to comply with the standards?

Irrigation Resources

Residential#

Plumbing Standards (includes multifamily)

Fixture Type

Max Flow Rate (Code Section 5-126)

Bathroom Faucet

1.5 GPM

Showerhead

1.8 GPM & WaterSense-labeled

Sink Faucet

1.8 GPM

Toilet

1.1 GPF*, 600 MaP & WaterSense-labeled

GPM: Gallons per minute
GPF: Gallons per flush
     *Dual-flush GPF calculation: average of two reduced flushes and one full flush
MaP: Maximum performance

Plumbing Compactness

Graywater Standards

Allowable use: 

  • Single-family: Up to 400 gallons per day
  • Multi-family: Up to 2,000 gallons per day

Sources: Showers, bathtubs, bathroom and laundry sinks, clothes washing machines

Uses (Code Sec. 5-151): Toilet and urinal flushing

Other requirements per Graywater Design Criteria:

  • NSF/ANSI 350 certified treatment and disinfection system required
  • Potable backup system and dual plumbing
  • Backflow prevention and cross-connection control
Irrigation Resources

There are no residential irrigation standards, but we encourage residents to save water and money by:


Did You Know?

Sink strainers can catch food waste to prevent expensive clogs and pipe backups.

Choosing fans before air conditioning, especially during on-peak hours, can save money.

There are many ways to pay your bill, including online, in-person and by phone.