City Of Greeley

Non-Potable System

Greeley 's non-potable system provides irrigation water from ditches or wells; the water is not treated. The City has a long history of non-potable irrigation, beginning in 1870, when Greeley began using Canal No. 3 to water parks and gardens. When cost-effective, the City builds non-potable facilities to water large properties such as parks and common areas of homeowner's associations.

There are two general categories of water supplies, treatable and untreatable. There are also two kinds of water demands, potable and non-potable. Treatable supplies are those available for treatment at Greeley's treatment plants, Bellvue and Boyd, and untreatable supplies are those not available for treatment for potable water service. Potable water demands are those that can only be met by treated supplies and non-potable demands are those that can be met by untreated supplies. Most discussions about non-potable are in reference to using untreated water for turf irrigation. Non-potable pumping plants collect the untreated water from the various ditches and canals through either a direct diversion system or a small pond. The water is then filtered, pressurized, and distributed to parks and open spaces.

The staff of the Water Department oversees construction of non-potable facilities. The Water Department operates several pump stations and the Parks Department also operates some sites. They are in operation from March 30th until October 31st. While in operation, they are monitored twenty-four hours a day and seven days a week. If you have any questions concerning a particular ditch, canal, lake, pond or non-potable site in the Greeley area, please call 350-9811.

List of Non-Potable Sites
Criteria for Non-Potable Sites
Safety at Non-Potable Sites
Non-Potable Construction Guidelines
Non-Potable Master Plan
Gravel Lake Storage
Greeley Irrigation Company - Number 3 Ditch

Non-Potable Sites

Bella Romero Elementary School

Northridge High School
Bittersweet Park Poudre Ponds

Cottonwood Park

Poudre River Ranch
East Memorial Elementary School Promontory Park

Glenmere Park

Ramsier Park
Greeley West High School Saint Michael's
Houston Gardens Sanborn Park
Island Grove Park Twin Rivers (FunPlex)
J.B. Jones University of Northern Colorado
Luther Park West Greeley Tech Center
Madison Elementary School Youth Sports Complex
Monfort Park  

Non-Potable Safety Concerns

The majority of Greeley's parks and open spaces are irrigated with non-potable waters. The use of these waters enables Greeley to remain green with little additional cost to tax payers. The water in the non-potable system has not been treated and is unsafe for drinking.

  • Always assume that water from lawn watering at Greeley's parks is not treated. Use only drink water that comes from a drinking water fountain.

  • Never play along on the ditches or canals. The current water level can rise without notice.

  • Never connect your domestic system to a non-potable or ditch irrigation system. It will create a cross connection and contaminate the clean water.

Criteria For a Non-Potable Site

The City evaluates sites to determine the feasibility and cost of serving it with non-potable irrigation water. Should the cost per acre-feet of water remain at an acceptable level, the project will be recommended to the Director of Water and Sewer for approval. The Director will make the final decision before construction can begin.

  • The site must be close to an existing raw water source.
  • The site must consist of a Home Owners Association or Commercial Property and have a common sprinkler system and one single meter.
  • The site must be free of outside faucets and stand pipes.

Construction Guidelines for Non-Potable Systems
General Design Criteria for Non-Potable Irrigation