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Santa Cruz AMA Cultural Water Demand

Cultural water demand data including population, number of wells and the average well pumpage and non-groundwater use by the municipal, industrial and agricultural sectors are shown in Table 8.4-9.  Effluent generation including facility ownership, location, population served and not served, volume treated, disposal method and treatment level is shown in Table 8.4-10.  Figure 8.4-11 shows the location of demand centers.  A description of cultural water demand data sources and methods is found in Volume 1, Appendix A.  More detailed information on cultural water demands is found in Section 8.0.7.

Cultural Water Demands

  • Refer to Table 8.4-9 and Figure 8.4-11.
  • Population in this AMA increased from 18,728 in 1980 to 37,049 in 2000 and projections suggest an increase to over 70,000 residents by 2030.
  • Total average annual water use in the Santa Cruz AMA has increased slightly since the early 1990s; however, the proportional use by the three major demand sectors has stayed relatively constant.                                            
  • In 2001-2005 agricultural water demand accounted for approximately 58% of the total annual water demand, the municipal sector accounts for 35% and the industrial sector approximately 7%. 
  • Coordinated management of groundwater and surface water is practiced in the Santa Cruz AMA and use of non-groundwater supplies have not been separately reported.
  • As of 2005 there were 1,246 registered wells with a pumping capacity of less than or equal to 35 gpm and 593 wells with a pumping capacity of more than 35 gpm.

Effluent Generation

  • Refer to Table 8.4-10.
  • Seven wastewater treatment facilities were identified in the AMA.
  • A variety of effluent disposal methods are used in the AMA but the largest volume of  effluent is disposed of by discharge into the Santa Cruz River.
  • More than 16,300 acre-feet of effluent is treated/generated annually in the AMA.

Click here for Table 8.4-9

Table 8.4-9 Cultural Water Demand in the Santa Cruz AMA

Click here for Table 8.4-10

Table 8.4-10 Effluent Generation in the Santa Cruz AMA

Click to view Figure 8.4-11

Figure 8.4-11 Santa Cruz AMA Cultural Water Demand


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