4.1.2 JVWCD

The City's existing contract with JVWCD is generally considered reliable for planning purposes because JVWCD has its own contingencies to account for source interruption. However, JVWCD has recently produced a Drought Contingency Plan (still in draft form as of the writing of this chapter). This contingency plan includes drought mitigation and response actions for each community within its service area. JVWCD has created Water Supply Availability Levels and corresponding Drought Response Action Levels ranging from 1 to 4 (4 being the most severe drought level). If enacted by JVWCD, these response actions will result in a reduction in the water that will be delivered to member agencies and JVWCD retail customers. Table 4-1 shows these levels with the associated reduction in water deliveries for each level.

Table 4-1
JVWCD Supply Availability

 

Drought Level	% Reduction in JVWCD Contract	Annual Volume from JVWCD (Acre-ft)	Groundwater Remediation from JVWCD (Acre-ft)	Total Annual Volume from JVWCD (Acre-ft)
0	0%	18,500	1,500	20,000
1	5%	17,575	1,500	19,075
2	10%	16,650	1,500	18,150
3	20%	14,800	1,500	16,300
4	30%	12,950	1,500	14,450

 

While annual delivery volumes may be reduced in drought years, the plan does not identify any reduction in the delivery capacity from JVWCD. Thus, it has been assumed that the peak delivery capacity from JVWCD will remain about the same, even in drought years. Correspondingly, the remainder of this chapter will focus primarily on the annual supply implications of drought.