12VAC5-590-700: Metering total water production

A. The design of all community waterworks shall provide metering of total water production.

B. The design of all NTNCs that provide treatment or have a design capacity of greater than 300,000 gallons per month shall provide metering of total water production.

C. The design of all TNCs that provide treatment or have a design capacity of greater than 300,000 gallons per month shall provide metering of total water production.

D. If the waterworks treatment process results in a waste flow, including filter backwash, ion exchange regenerate, or residual solids, then the design shall provide metering of total source water withdrawn and finished water produced.

E. Metering of total water production at waterworks that do not meet the conditions found in subsections A through D of this section should be provided.