Contra Loma Reservoir Fish Stocking
Contra Costa County, California · 2024–2025 on record
According to California CDFW — Fish Planting Schedule, Contra Loma Reservoir was last stocked Week of February 2, 2025 with Trout. Contra Loma Reservoir has 5 stocking records on file, spanning 2024–2025.
By species
Angler's Field Guide
Fishing Tips & Stocking Guide for Contra Loma Reservoir
Practical advice on fish behavior, recommended tackle, and state regulations for anglers fishing in Contra Costa County, California.
Post-Plant Behavior & Timing
Hatchery-raised fish are conditioned to pelleted feed and open raceways. Following a release into Contra Loma Reservoir, they typically congregate in schools near public access points, boat ramps, or inlets for the first 24 to 48 hours while adjusting to natural water conditions.
Since Contra Loma Reservoir was last stocked Week of February 2, 2025, anglers visiting within 1 to 2 weeks of a reported event generally experience the highest activity before fish disperse into deeper cover.
State Regulations & Licensing
- •Fishing License: A valid California freshwater fishing license is required for anglers age 16 and older.Purchase California license online →
- •Official Rules & Limits: Bag limits, bait restrictions, and seasonal boundaries are set by California fish & wildlife agency.Official California regulations guidebook →
- •Ethical Conservation: Use barbless hooks and keep fish submerged in water during unhooking.Trout Thermal Advisory: When water temperatures rise above 68°F (20°C), released trout face severe mortality from thermal exhaustion. Target warmwater species or fish early in the morning when lakes and streams warm up.
Recommended Tackle & Presentations
Techniques tailored to the species stocked in Contra Loma Reservoir:
Stocked Trout Tactics
Use light 4–6 lb monofilament or fluorocarbon line. Float scented dough bait (PowerBait) 12–18" off bottom using a sliding slip-sinker rig with a size 14–16 treble hook. For active casting, throw 1/16 to 1/8 oz inline spinners (Panther Martin, Rooster Tail) or small spoons (Kastmaster) along drop-offs.
Recommended Tackle for Contra Loma Reservoir
Field-tested tackle and presentations matched to the species stocked here.
Berkley PowerBait Floating Trout Dough
Hatchery-raised trout are conditioned to pelleted scents; scented dough floated 12–18 inches off bottom consistently triggers strikes.
Panther Martin Classic Teardrop Inline Spinner
The heavy convex blade spins instantly upon retrieval, sending vibration through the water that triggers aggressive reaction bites along drop-offs.
Sliding Sinker & Treble Hook Rigging Kit
Sliding egg sinkers allow cautious trout to run with bait without feeling line drag, while size 14–16 treble hooks keep dough bait securely pinned.
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Nearby stocked waters
Other stocked waters near Contra Loma Reservoir, freshest activity first.
Sandy Wool Lake
36 miSanta Clara County · 1 species · 9 records
Last stocked April 2026
Lake Chabot
25 miSolano County · 1 species · 10 records
Last stocked March 2026
Hidden Valley Pond
14 miContra Costa County · 1 species · 10 records
Last stocked March 2026
Oak Grove Park Lake
26 miSan Joaquin County · 1 species · 4 records
Last stocked March 2026
Horseshoe Lake
29 miAlameda County · 1 species · 13 records
Last stocked March 2026
Lake Herman
20 miSolano County · 1 species · 2 records
Last stocked February 2026
Stocking history
Most recent stockings first. Dates shown at the precision the agency reported.
| Date | Species | Source |
|---|---|---|
| Week of February 2, 2025 | Trout | California CDFW |
| Week of January 12, 2025 | Trout | California CDFW |
| Week of January 5, 2025 | Trout | California CDFW |
| Week of December 8, 2024 | Trout | California CDFW |
| Week of November 10, 2024 | Trout | California CDFW |
The reporting agency did not include fish counts or sizes for this water.
Frequently asked
When was Contra Loma Reservoir last stocked?
According to California CDFW — Fish Planting Schedule, Contra Loma Reservoir was last stocked Week of February 2, 2025 with Trout.
What fish species are stocked in Contra Loma Reservoir?
Contra Loma Reservoir is stocked with Trout.
How often is Contra Loma Reservoir stocked?
Contra Loma Reservoir has been stocked about 3 times a year — 5 recorded stockings between 2024 and 2025.
Do you need a fishing license to fish Contra Loma Reservoir?
Yes, all anglers age 16 and older generally need a valid California freshwater fishing license. Always review current regulations from California fish & wildlife agency for site-specific rules, bag limits, or stamps.
How do you catch stocked trout in Contra Loma Reservoir?
Freshly stocked trout in Contra Loma Reservoir typically respond well to floating dough bait (such as PowerBait) floated 12–18 inches off bottom on light 4–6 lb leader, live nightcrawlers under a bobber, and small inline spinners or spoons retrieved along shorelines and drop-offs.
What are sterile triploid trout, and why are they stocked in Contra Loma Reservoir?
Triploid trout are sterile hatchery fish bred with three sets of chromosomes instead of two. Because they do not expend energy developing eggs or milt, they grow significantly faster, live longer to reach trophy sizes, and can be stocked without risking the genetic integrity of native wild trout populations.
Why do fish stocking dates or plant schedules change for Contra Loma Reservoir?
Stocking schedules published by California CDFW — Fish Planting Schedule are planned targets, not exact guarantees. Plants are frequently delayed or rescheduled due to elevated water temperatures (trout experience mortality stress above 68°F), seasonal runoff, severe weather, poor road access, or hatchery trucking logistics.