CFR /  Title 40  /  Part 63  /  Sec. 63.1085 What are the general requirements for heat exchange

Unless you meet one of the requirements for exemptions in Sec. 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 Sec. 63.1086.

(b) If you detect a leak, repair it according to Sec. 63.1087 unless repair is delayed according to Sec. 63.1088.

(c) Keep the records specified in Sec. 63.1089.

(d) Submit the reports specified in Sec. 63.1090.

Monitoring Requirements for Heat Exchange Systems