How often can outstanding community water systems be surveyed?

• A. Every 3 years.
• B. Every 5 years.
• C. Every 2 years.
• D. Every 4 years.

Answer: (B)

The time frame for surveying reflects how risk and performance are managed. Outstanding community water systems have demonstrated strong, reliable operation and robust safeguards, so the surveillance cycle can be longer. A sanitary survey for these systems is a thorough on-site review of source water protection, treatment, distribution system integrity, operation and maintenance practices, and recordkeeping to verify controls are in place and functioning. Because these systems have a proven track record, the state can schedule the survey every five years, rather than more frequently, while still keeping oversight through routine data reviews and any triggered inspections if conditions change. If issues do arise, the interval can be shortened and a survey scheduled sooner.