1 Drought Conditions Update
Steven R. Ritchie
Assistant General Manager, Water
April 4, 2022
April 4, 2022 Reservoir Storage
Reservoir
Current
Storage1,2,3
Maximum
Storage4
Available
Capacity
Percent of
Maximum
Storage
Normal
Percent of
Maximum
Storage5
(AF) (AF) (AF)
Tuolumne System
Hetch Hetchy 298,200 360,360 62,160 82.8% 61.1%
Cherry 235,900 268,800 32,900 87.8% -
Eleanor 23,970 21,495 0 100.0% -
Water Bank 343,041 570,000 226,959 60.2% 99.8%
Total Tuolumne Storage 901,111 1,220,655 322,019 73.8% - Local System
Calaveras 64,460 96,670 32,210 66.7% -
San Antonio 38,563 53,266 14,703 72.4% -
Crystal Springs 44,959 58,309 13,350 77.1% -
San Andreas 15,541 19,027 3,486 81.7% -
Pilarcitos 2,786 3,030 244 91.9% -
Total Local Storage 166,309 230,302 63,993 72.2% -
Total System Storage 1,067,420 1,450,957 386,012 73.6% 81.6% Total without water bank 724,379 880,957 159,053 82.2% -
Other
California
Reservoirs
California Drought Monitor
Hetch Hetchy Precipitation
5 Upcountry Snowpack
Water Available to the City
Tuolumne River Water Available
to the City
Upcountry 6-station Precipitation Index as of
April 3, 2022
Avg Annual Total: 36.68 inches
YTD Total: 20.43 inches
Bay Area 7-station Precipitation Index
as of April 3, 2022
Avg Annual Total: 22.80 inches
YTD Total: 21.02 inches
National Precipitation Forecast
Total Deliveries
Drought Tracker
Governor’s March 28th Executive Order
• Directs State Water Board to adopt emergency regulations by May 25th that would potentially impact SFPUC and our customers by:
• Requiring urban water suppliers to submit a draft annual water supply assessment and s
hortage report to the State by June 1.
• Requiring urban water suppliers to implement Level 2 shortage response actions (up to 20% shortage). SFPUC is currently at Level 1. Potential anticipated impacts:
• Retail Customers – N one. Continue 5% reduction.
• Wholesale Customers – P otentially increase current reduction of 13.7% by less than 1%. SFPUC will evaluate the need to provide revised allocations once the emergency regulations are adopted. 14 Governor’s March 28th Executive Order
• Encourages water agencies to voluntarily activate more stringent local r
equirements based on a shortage level of up to 30 percent. • Requires State Water Board to ban irrigation of non-f unctional turf in commercial, industrial, and institutional (CII) sectors during the emergency. • Urban water suppliers are not required to act, but SFPUC staff is prepared to propose adopt
ion of this prohibition as part of our local water waste restrictions. 15