Which classification is the PWS that regularly supplies at least 25 of the same people at least 6 months per year but not year-round?

• A. Non-Transient Non-Community Water System
• B. Community Water System
• C. Transient Non-Community Water System
• D. Seasonal Water System

Answer: (A)

The main idea is how public water systems are classified by who they serve and for how long. If a system reliably serves at least 25 people who are the same group for six months or more each year, but not all year, that fits the Non-Transient Non-Community Water System category. This category covers facilities like schools, factories, or office complexes where a fixed group uses the same water source for a substantial part of the year but the service isn’t year-round. It’s different from a Community Water System, which serves residents year-round; from a Transient Non-Community System, which serves visitors for less than six months; and from a Seasonal Water System, which operates only during specific seasons and doesn’t meet the ongoing six-month criterion. So the best match is Non-Transient Non-Community Water System.