Des Moines Register: West Des Moines Water Works is looking to join a regional water utility rather than joining with other suburbs in a separate utility, with a planning committee saying the move could save consumers up to 30% over the next four decades. The planning committee of the waters works’ board of trustees is recommending the full board vote in favor of joining Central Iowa Water Works. Approval would represent a first step toward the long-envisioned formation of a Central Iowa Water Works, serving the Des Moines metro's biggest cities.