Shopping Cart
Your Cart is Empty
There was an error with PayPalClick here to try again
CelebrateThank you for your business!You should be receiving an order confirmation from Paypal shortly.Exit Shopping Cart

About CWS

CWS is a locally owned and operated small business based out of Castroville California serving the Central Coast and with an operations branch serving the South Bay in San Jose. At CWS we provide California State Certified Operator Services for Water Treatment, Wastewater Treatment and Distribution Operations. We specialize in complete Water and Wastewater System Operation, Maintenance, and Management and hold the proper certification and insurance to operate and maintain plants and facilities of any size or type.  

Whether your needs are Monthly Sampling and Reporting, Technical Assistance or Complete Operation and Maintenance, CWS has the Experience, Expertise, and Personnel to handle all of your Water and Wastewater needs.