40 CFR § 141.802 - Coliform sampling plan.
---
identifier: "/us/cfr/t40/s141.802"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 141.802 - Coliform sampling plan."
title_number: 40
title_name: "Protection of Environment"
section_number: "141.802"
section_name: "Coliform sampling plan."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "D"
subchapter_name: "WATER PROGRAMS"
part_number: "141"
part_name: "NATIONAL PRIMARY DRINKING WATER REGULATIONS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 300f, 300g-1, 300g-2, 300g-3, 300g-4, 300g-5, 300g-6, 300j-4, 300j-9, and 300j-11."
regulatory_source: "40 FR 59570, Dec. 24, 1975, unless otherwise noted."
cfr_part: "141"
---
# 141.802 Coliform sampling plan.
(a) Each air carrier under this subpart must develop a coliform sampling plan covering each aircraft water system owned or operated by the air carrier that identifies the following:
(1) Coliform sample collection procedures that are consistent with the requirements of § 141.803(a) and (b).
(2) Sample tap location(s) representative of the aircraft water system as specified in § 141.803(b)(2) and (b)(4).
(3) Frequency and number of routine coliform samples to be collected as specified in § 141.803(b)(3).
(4) Frequency of routine disinfection and flushing as specified in the operations and maintenance plan under § 141.804.
(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.
(b) Each air carrier must develop a coliform sampling plan for each aircraft with a water system meeting the definition of a public water system by April 19, 2011.
(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.