40 CFR § 63.1085
What are the general requirements for heat exchange systems?
June 9, 2020
Unless you meet one of the requirements for exemptions in §63.1084, you must meet the requirements in paragraphs (a) through (d) of this section.
(a) Monitor the cooling water for the presence of substances that indicate a leak according to §63.1086.
(b) If you detect a leak, repair it according to §63.1087 unless repair is delayed according to §63.1088.
(c) Keep the records specified in §63.1089.
(d) Submit the reports specified in §63.1090.