agenda city of watsonville city council/redevelopment agency meeting

Water supply sources 1
Supplier-produced
groundwater
Supplier-produced
surface water
Specific source name,
if any
Browns, Corralitos
Creeks
Table 5.1 (UWMP Table 29)
Factors resulting in inconsistency of supply
Limitation
quantification
Legal Environmental Water quality Climatic
none none none none none
2,400 none none High turbidity
Severe
drought
Additional
information
Units:
1 From Table 4.1.
acre-feet per year
#37. Actions to be undertaken by the urban water supplier to prepare for, and
implement during, a catastrophic interruption of water supplies including, but not
limited to, a regional power outage, an earthquake, or other disaster (10632(c)).
The City has made a number of preparations to provide water during emergencies. Historically, the
most common emergencies have been regional power outages and earthquakes. The City has learned
from its experience of the 1989 Loma Prieta earthquake, and has taken many steps since then to
prepare for similar situations. The City’s Water Supply and Distribution System Emergency Response Plan
is included in Appendix C.
The City water system is designed as a network, so that if one source of water or zone is damaged,
water can be supplied from another area of the City. Additionally, each area within the service system is
served by multiple wells, thus limiting dependence on a single supply source. Nearly all source water
sites are equipped with emergency back-up generators and fuel tanks that will keep the system
operational during emergencies for at least 1-3 days depending on the site; this time can be extended
indefinitely by refilling fuel tanks.
Possible Catastrophe
Regional Power Outage
Earthquake
Table 5.2 – Emergency Response
Summary of Actions
Activate and monitor the generators and direct drive equipment for
proper operation.
Assess what system components are unavailable. Isolate and
substitute an alternate source
#38. Additional, mandatory prohibitions against specific water use practices during
water shortages, including, but not limited to, prohibiting the use of potable water for
street cleaning (10632(d)).
#39. Consumption reduction methods in the most restrictive stages. Each urban water
supplier may use any type of consumption reduction methods in its water shortage
contingency analysis that would reduce water use, are appropriate for its area, and have
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