Moulton Niguel Water District is dedicated to providing excellent customer service. Review the resources below, and as always, feel free to get in touch with us if you have any questions! Our customer service department can be reached by phone at (949) 831-2500, by email at customerservice@mnwd.com, or by visiting our office located at 26161 Gordon Rd, Laguna Hills, CA 92653. Our office hours are Monday – Friday from 8am – 5pm.