The bacterial quality of swimming pool water shall be maintained so that not more than 15% of samples covering any considerable period of time contain more than 200 bacteria per milliliter or not more than 15% of such samples show positive confirmed results for coliaerogenes in any one of five ten-milliliter portions of water tested. The samples shall be collected at times when the pool is being heavily used.
(`82 Code, § 1490.20) (Ord. 61-26, passed 6-19-61)