The vended water from each water vending machine utilizing silver-impregnated carbon filters in the treatment process shall be analyzed at least once every three months for silver. The analysis shall be performed by an approved laboratory and a copy of the analysis shall be available for inspection.

Added at 8 Ok Reg 3103, eff 7-18-91 (emergency)

Added at 9 Ok Reg 1457, eff 5-1-92