New Don Pedro Dam · Tuolumne River · California — updated daily from official gauges
Latest reading
Don Pedro Reservoir is 86.7% full as of — surface elevation 807.98 feet, storage 1,760,016 acre-feet (capacity basis 2,030,000 acre-feet).
That elevation is 136.79 feet above its record low of 671.19 ft (), in a daily record going back to January 1, 1985 (start of CDEC's daily record).
Storage is 112% of the July 23 average across 40 years of record.
Water level change: -3.57 ft over the past week, -11.14 ft over the past month, and -2.85 ft over the past year.
Percent full
86.7%
of 2,030,000 AF
Vs date average
112%
of the Jul 23 storage average since 1985
Elevation
807.98 ft
full pool 830.0 ft
Storage
1,760,016 AF
-33 KAF vs 1 yr ago
1-week change
-3.57 ft
elevation
1-year change
-2.85 ft
elevation
Don Pedro Reservoir vs its record low
In the daily record used by this site (going back to January 1, 1985 (start of CDEC's daily record)), Don Pedro Reservoir's lowest surface elevation was 671.19 feet on , when storage was 628,612 acre-feet. As of , Don Pedro Reservoir is at 807.98 feet — 136.79 feet above that record. The record high in the same series was 829.77 ft on .
Don Pedro Reservoir storage in context
Reading
Elevation (ft)
Storage (AF)
% full
Today (July 23, 2026)
807.98
1,760,016
86.7%
One year ago
810.83
1,792,736
88.3%
Five years ago
749.82
1,176,679
58.0%
Record low (October 9, 2015)
671.19
628,612
31.0%
Capacity basis
830.00
2,030,000
100.0%
Don Pedro Reservoir water level, past 12 months
Don Pedro Reservoir daily surface elevation (feet above sea level), past 12 months. Source: California DWR CDEC. Rendered at build time from the official gauge record — no JavaScript.
Don Pedro Reservoir elevation, full record
Don Pedro Reservoir month-end surface elevation, 1985–2026 — the full daily record fetched from California DWR CDEC, one point per month.
Last 14 daily readings
Date
Elevation (ft)
Day change
Storage (AF)
July 23, 2026
807.98
-0.40 ft
1,760,016
July 22, 2026
808.38
-0.46 ft
1,764,663
July 21, 2026
808.84
-0.38 ft
1,769,319
July 20, 2026
809.22
-0.37 ft
1,773,984
July 19, 2026
809.59
-0.42 ft
1,778,658
July 18, 2026
810.01
-0.35 ft
1,783,300
July 17, 2026
810.36
-1.19 ft
1,788,034
July 14, 2026
811.55
-0.34 ft
1,800,989
July 13, 2026
811.89
-0.42 ft
1,805,718
July 12, 2026
812.31
-0.42 ft
1,810,457
July 11, 2026
812.73
-0.38 ft
1,815,205
July 10, 2026
813.11
-0.43 ft
1,819,963
July 9, 2026
813.54
-0.40 ft
1,824,731
July 8, 2026
813.94
—
1,829,509
Frequently asked questions
What is the water level of Don Pedro Reservoir today?
As of July 23, 2026, Don Pedro Reservoir's surface elevation is 807.98 feet, with 1,760,016 acre-feet in storage — 86.7% of the 2,030,000 acre-foot capacity basis. Source: California DWR CDEC daily gauge data.
How full is Don Pedro Reservoir?
Don Pedro Reservoir is 86.7% full as of July 23, 2026. Its storage is 112% of the July 23 average across its record since 1985.
Is Don Pedro Reservoir rising or falling?
Don Pedro Reservoir is falling: its elevation changed -3.57 feet over the week ending July 23, 2026, -11.14 ft over the past month, and -2.85 feet over the past year. Source: California DWR CDEC daily gauge data.
What was Don Pedro Reservoir's lowest water level on record?
Don Pedro Reservoir's lowest surface elevation in the daily record since January 1, 1985 was 671.19 feet on October 9, 2015, per the daily record used by this site. As of July 23, 2026 the reservoir is 136.79 feet above that record low.
About this gauge
Don Pedro Reservoir on the Tuolumne River is operated by the Turlock and Modesto irrigation districts and is among the largest reservoirs in California.
Data: California DWR CDEC station DNP, daily reservoir elevation (sensor 6) and storage (sensor 15). Percent full uses the 2,030,000 acre-foot capacity from the CDEC daily reservoir storage summary. Updated daily.