Contact Us

Rainbow Municipal Water District
Address: 3707 Old Highway 395
Fallbrook, California 92028
Office Hours: 8:00 a.m. - 4:30 p.m. Monday-Friday
Phone & After Hours Support: (760) 728-1178
Office Closure: Monday, May 26 the Rainbow Water office will be closed in observance of Memorial Day. Bill payments can be made online. The office will open for regular operating hours the following day.
Rainbow Water is available 24 hours a day, seven days a week to assist customers with water outages. Call the customer service phone number at (760) 728-1178 to report an outage.
Complete the form below to inquire about service, report an issue or comment. Please note this is a non-emergency form and any information submitted using this form is a Public Record and may be disclosed in communications to our Board or by request from third parties.
Please do not submit confidential information using this form.