TacticScaleWhat California Water Service Does & How It Makes Money (CWT)
Updated October 2026 · reflects California Water Service's latest reported financials
Regulated water and wastewater utility serving five western U.S. states. Most of its revenue comes from selling water and wastewater services to about 557,000 regulated customer connections at utility rates.
How California Water Service makes money
Most of its revenue comes from selling water and wastewater services to about 557,000 regulated customer connections at utility rates. It also earns smaller non-regulated income from running water systems for municipalities and private owners, meter reading and billing services, leasing antenna sites on its land, and billing optional third-party insurance programs.
What California Water Service does
California Water Service Group is a water utility founded in 1926 and based in San Jose. Through its subsidiaries it serves about 500,000 customer connections across 20 districts in California, plus about 38,500 in the Tacoma–Olympia region of Washington, about 11,800 water and wastewater connections in New Mexico systems, and about 6,800 on Kauai, Maui, Oahu and Hawaii. It handles the full water chain from production or purchase through treatment, testing and delivery to residential, industrial, public, irrigation and fire protection customers. Most of the business is regulated utility service, which makes it a typical regulated water company. It adds smaller non-regulated revenue from operating municipal, private and recycled water systems, providing meter reading and billing services, leasing antenna sites on its land, and billing optional third-party insurance programs to residential customers.
Products & services
- Regulated water utility service
- Wastewater collection and treatment
- Fire protection water service
- Contract operation of municipal and private water systems
- Meter reading and billing services
- Communication antenna site leasing
What is California Water Service worth?
On an owner-earnings DCF, California Water Service's most-likely value is about $11 versus a recent price near $46 (77% above fair value). But TacticScale only calls a stock undervalued when the price sits below its conservative no-growth floor (~$6) with a margin of safety — so the honest verdict here is “Stretched — richly priced.” Fair value earns its keep only at the extremes, not in the wide middle.
Today's $46 is above even the optimistic Bull case ($13) — the market expects faster, longer growth than modeled here. Expensive unless that extra growth actually shows up.
⚠ High leverage — net debt is 50.8× annual cash flow. Net debt is subtracted from this fair value, but refinancing at higher rates, principal timing, and share dilution aren’t modeled — the equity can be worth far less if cash flow weakens.
⚠ Capital-intensive — this business reinvests heavily, so free cash flow runs well below its earnings. Fair value here is built on free cash flow, which understates owner earnings for reinvestment-heavy companies — read it as conservative.
Analysis, not advice. Fair value is a margin-of-safety estimate from a deterministic owner-earnings DCF, not a price target or recommendation. See the full breakdown →
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American States Water (AWR) · H2O America (HTO) · American Water Works (AWK) · Essential Utilities (WTRG) · Middlesex Water (MSEX)