40 CFR § 141.802 - Coliform sampling plan.
(1) Coliform sample collection procedures that are consistent with the requirements of § 141.803(a) and (b).
(3) Frequency and number of routine coliform samples to be collected as specified in § 141.803(b)(3).
(5) Procedures for communicating sample results promptly so that any required actions, including repeat and follow-up sampling, corrective action, and notification of passengers and crew, will be conducted in a timely manner.
(c) The coliform sampling plan must be included in the Aircraft Water System Operations and Maintenance Plan required in § 141.804. Any subsequent changes to the coliform sampling plan must also be included in the Aircraft Water System Operations and Maintenance Plan required in § 141.804.