Cross-connection control program
San Mateo County Environmental Health Services manages the Menlo Park Municipal
Water’s cross-connection control program, including notifications, record keeping, tester certification, and site surveys for cross-connection compliance. Backflow Prevention Testers must be certified by San Mateo County and be on the approved list of Certified Backflow Prevention Testers. For information about the
cross connection program, please contact San Mateo County Environmental Health Services at 650-372-6200.