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Active Management Area Cultural Water Demand - Industrial Demand

Industrial demand in the AMA Planning Area averaged approximately 231,200 acre-feet annually between 2001 and 2005.  This demand accounted for 9.5% of the total non-Indian water demand in the planning area during the time-period. 

While the composition of industrial demand differs among the AMAs, as shown in Table 8.0-17, turf demand has been the highest demand sector overall, followed by power plants and mining.  Industrial demand is greatest in the Phoenix AMA with 70% of the total in the planning area followed by the Tucson AMA with 22% of the total.

Table 8.0-17 Industrial demand in the AMA Planning Area

Table 8.0-17

Within the AMAs, industrial water use is specified in non-irrigation groundwater rights or permits.  Water supplied by municipal providers for industrial or commercial use is not reflected within the industrial demand sector but rather within AMA municipal demand.  Based on this definition of industrial use, the predominant source of supply in the planning area is groundwater; however, some CAP water and effluent is also used.  All industrial users classified within the AMAs have general conservation requirements under the AMA management plans. Additional conservation requirements exist for turf-related facilities, power plants, metal mines, sand and gravel operations, dairies, feedlots, large cooling facilities, new large landscape users and new large industrial users. “Other” industrial users listed in Table 8.0-17 are those subject to the general requirements that apply to all industrial users, as well as large cooling facilities, new large landscape users and new large industrial users.

 

Phoenix AMA

Industrial demand in the Phoenix AMA averaged 162,400 AFA during 2001-2005; 8% of the Phoenix AMA non-Indian demand.  Although the total annual demand in the AMA has been increasing, the portion attributed to industrial use has remained fairly stable.  The largest industrial use category during that period were power plants. There are nine relatively large powerplants in the AMA but the largest by far is the Palo Verde Nuclear Generating Facility.  Palo Verde used over 64,000 acre-feet in 2005, a majority of which was effluent. All powerplants use some groundwater with the exception of Redhawk which uses 100% effluent. The SRP Kyrene and San Tan plants use some CAP water.

The next largest industrial use in the Phoenix AMA are turf related facilities, primarily golf courses, which accounted for 39% of the industrial use in 2005.

Though dairy operations have been relocated from the Phoenix AMA to the Pinal AMA and rural Arizona, there were still 81 large-scale dairy operations and 8 large-scale feedlots in the AMA during 2005, representing 7% of the total industrial demand.  Sand and gravel operations are a fairly stable demand within the Phoenix AMA with approximately 6% of the total industrial demand.  Approximately 9% of the industrial demand is by “other” industrial users such as small-scale dairies, industrial facilities and high water use landscape areas less than ten acres in size.

Pinal AMA

Industrial demand in the Pinal AMA during 2001-2005 averaged approximately 14,700 acre-feet, or 6% of the total industrial demand in the planning area and less than 2% of the Pinal AMA non-Indian demand. The largest industrial water use in the AMA is dairies and feedlots.  Seventeen large-scale dairies were constructed in the Pinal AMA from 2000 to 2006, bringing the total number to 28.  Many of these were dairies relocated from the Phoenix AMA due to urbanization.  The number of new dairies in the AMA has leveled off, with only three starting operations after January 2004 and another in the planning stage.  The additional dairies have increased the acreage of forage crops in the AMA and also impacted agricultural demand.

Water for turf irrigation, primarily golf courses, has been steadily increasing and was the second largest industrial user in the AMA during 2001-2005 averaging 4,800 AFA.

Feetlot in Pinal AMA

Feedlot, Pinal AMA. The largest industrial water use in the AMA is dairies and feedlots. Seventeen large-scale dairies were constructed in the Pinal AMA from 2000 to 2006, bringing the total number to 28.

Prescott AMA

Industrial water demand within the Prescott AMA is limited to two golf courses (Prescott Country Club and Quailwood), sand and gravel operations and other industrial uses. Groundwater is the only water supply used for this demand. The average annual demand during 2001-2005 was approximately 1,500 acre-feet, or 6% of the Prescott AMA demand and less than 1% of the total industrial demand in the planning area.

Santa Cruz AMA

Approximately 1,500 acre-feet (7%) of the average 2001-2005 total water demand in the Santa Cruz AMA was industrial.  Most of this demand occurred at two industrial golf courses and other turf-related facilities. As shown on Table 8.0-17, relatively small amounts of water were also used by sand and gravel operations and by other industrial users.

Green Valley and Mines 2003

Areal view of Green Valley Mines, Tucson AMA

Tucson AMA

Industrial water demand in the Tucson AMA during 2001-2005 averaged 51,100 AFA, or 22% of the total industrial demand in the planning area. This accounted for 16% of the total Tucson AMA demand; the largest percentage of any AMA, and was primarily met with groundwater.

Water for the mining sector was almost 69% of the industrial demand in the AMA and 77% of the total mining demand in the planning area. Most of this demand came from three active copper mines, all located west of the Sahuarita/Green Valley area (Figure 8.5-12).   Water use at the Mission, Silver Bell and Sierrita mines has fluctuated through time, reaching a peak in the mid 1990s when almost 50,000 acre-feet of water was used. By 2002, water use fell by almost half due to low copper prices. More recently, with the price of copper reaching historic highs, mining water use is again on the rise. Historically, all mine water was supplied by groundwater.  Begining in 2007 approximately 1,000 acre-feet  of CAP water was used at the Mission mine and that volume increased to over 8,100 acre-feet in 2009.

In addition to the copper mines, other industrial users in the Tucson AMA include sand and gravel operations, turf facilities, electric power plants, a dairy and other types of industrial users. As listed in Table 8.0-17, industrial turf facilities were the second largest industrial water uses averaging of 8,200 AFA during 2001-2005. The two power plants in the AMA, TEP-Wilson Sundt Generating Station (formerly Irvington Station) and APS Saguaro Station, used an average of 3,800 AFA during 2001-2005.

 

water drop  Continue to Section 8.0.7 Water Resource Issues in the AMA Planning Area

 

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