Turf-Related Facilities (≥ 10 acres)
These facilities are the largest industrial water users in the AMAs. There are five different types of Turf-Related Facilities which include golf courses, parks and recreational facilities, school grounds, and cemeteries. These industries use a major portion of their total water demand for growth and maintenance of turf and other landscaping plants. Turf facilities are given maximum annual water allotments based on the size and age of the facility. Application rates and limits used in calculating allotments vary slightly among the AMAs. There are also incentives for facilities to use effluent for landscape watering. For more information, please go to Chapter 6 of the 4th Management Plans for each AMA. Additional discussions regarding this program have taken place in the development of the 5th Management Plans. See the Turf section of the 5MPs Concepts page and the draft 5th Management Plans Allotment Calculator for Turf-Related Facilities for more information.
Sand & Gravel Facilities (> 100 AF/year)
Water is used primarily for washing sand and gravel. This sector also uses water for dust control, in ready-mix concrete, brick, asphalt and other products, and in concrete curing and clean-up activities. Sand & Gravel Facilities must:
- Construct disposal ponds or install clarifiers to collect and reuse water runoff
- Implement measures to reduce water used for dust control and equipment cleaning
Metal Mining Facilities (> 500 AF/year)
ADWR regulates mining facilities that mine and process ores and use or have the potential to use more than 500 AF of water per year. Metal Mining Facilities are required to:
- Minimize amount of water used in tailings transport (48%-50% or greater solids)
- Maximize tailings water reuse & minimize evaporation
- Minimize water use for dust control
Large Scale Power Plants (> 25 MW)
Two types of electric power plants are regulated: steam electrical plants and combustion turbine plants. Steam electrical plants use cooling towers to dissipate excess heat that builds up in the steam electrical generation process. Rather than using steam to drive a turbine, combustion turbines use compressed air. Large Scale Power Plans must achieve a specified number of “cycles of concentration,” a measure of the degree to which cooling water is recycled, before “blowing down” used water. Pre-1985 steam facilities must achieve 7 or more cycles, and post-1984 steam facilities 15 or more cycles. Combustion turbine facilities must achieve a cycle of concentration level based on blowdown water quality.
Large Scale Cooling Facilities (≥ 1,000 tons)
Cooling towers cool water that has absorbed the heat load of a heat-generating process. Cooling towers are present at a variety of commercial, industrial, and institutional facilities. Like the power plant requirement, LSCT must meet either a specified concentration of:
- silica (120 mg/L) or
- total hardness (1,200 mg/L)
- before “blowing down” used water and adding clean or “make-up” water
Dairy Operations (monthly avg ≥ 100 lactating cows/day)
Most water use at dairy operations occurs for animal drinking needs, udder washing, barn cleanup, and animal cooling. Maximum allotments are based on water use needs per cow in the base program and are as follows:
- 105 gallons per animal per day (GAD) for lactating animals and 20 GAD for non-lactating animals
Cattle Feedlots Operations (monthly avg ≥ 100 cattle/year)
Water is primarily used for animal drinking and dust control. Maximum annual allotments are based on water use needs per head of cattle. Operations receive 30 GAD per head of cattle for drinking, dust control requirements and other uses such as feed prep.
New Large Landscape Users (> 10,000 sq ft of water-intensive landscape)
- Are non-residential facilities that have a water-intensive landscaped area in excess of 10,000 sq ft that was planted after January 1, 1990. If NOT a hotel, the user must limit water-intensive landscape to 20% of the area in excess of 10,000 sq feet. Effluent and wastewater incentives exist.
New Large Industrial Users (> 100 AF/year)
- Are industrial users that begin using more than 100 AF of water/year for industrial purposes after Jan 1, 2000. New Large Industrial Users shall submit to the ADWR a plan to improve the efficiency of water use by the facility.