CWT ▼ -0.3% - California Water Service Group $CWT - California Water Service Kicks Off Back-to-School Season With 13th Year of Tap Into Learning Program California Water Service Group launched the 13th year of its Tap Into Learning education program as the back-to-school season begins, though the initiative had minimal market impact with shares declining 0.3% today. 08-SEP-2026 06:21 PM ET