NR 661.1057(3)(b)(b) If a leak is detected, the valve shall be monitored monthly until a leak is not detected for 2 successive months. NR 661.1057(4)(a)(a) When a leak is detected, it shall be repaired as soon as practicable, but no later than 15 calendar days after the leak is detected, except as provided in s. NR 661.1059. NR 661.1057(4)(b)(b) A first attempt at repair shall be made no later than 5 calendar days after each leak is detected. NR 661.1057(5)(5) First attempts at repair include the following best practices where practicable: NR 661.1057(6)(6) Any valve that is designated, as described in s. NR 661.1064 (7) (b), for no detectable emissions, as indicated by an instrument reading of less than 500 ppm above background, is exempt from the requirements under sub. (1) if the valve meets all of the following requirements: NR 661.1057(6)(a)(a) Has no external actuating mechanism in contact with the hazardous secondary material stream. NR 661.1057(6)(c)(c) Is tested for compliance with par. (b) initially upon designation, annually, and at other times as requested by the department. NR 661.1057(7)(7) Any valve that is designated, as described in s. NR 661.1064 (8) (a), as an unsafe-to-monitor valve is exempt from the requirements under sub. (1) if all of the following requirements are met: NR 661.1057(7)(a)(a) The remanufacturer or other person that stores or treats the hazardous secondary material determines that the valve is unsafe to monitor because monitoring personnel would be exposed to an immediate danger as a consequence of complying with sub. (1). NR 661.1057(7)(b)(b) The remanufacturer or other person that stores or treats the hazardous secondary material adheres to a written plan that requires monitoring of the valve as frequently as practicable during safe-to-monitor times. NR 661.1057(8)(8) Any valve that is designated, as described in s. NR 661.1064 (8) (b), as a difficult-to-monitor valve is exempt from the requirements under sub. (1) if all of the following requirements are met: NR 661.1057(8)(a)(a) The remanufacturer or other person that stores or treats the hazardous secondary material determines that the valve cannot be monitored without elevating the monitoring personnel more than 2 meters above a support surface. NR 661.1057(8)(b)(b) The hazardous secondary material management unit within which the valve is located was in operation before January 13, 2015. NR 661.1057(8)(c)(c) The owner or operator of the valve follows a written plan that requires monitoring of the valve at least once per calendar year. NR 661.1057 HistoryHistory: CR 19-082: cr. Register August 2020 No. 776, eff. 9-1-20; correction in (3) (b) made under s. 35.17, Stats., Register August 2020 No. 776. NR 661.1058NR 661.1058 Standards: pumps and valves in heavy liquid service, pressure relief devices in light liquid or heavy liquid service, and flanges and other connectors. NR 661.1058(1)(1) Pumps and valves in heavy liquid service, pressure relief devices in light liquid or heavy liquid service, and flanges and other connectors shall be monitored within 5 days by the method specified in s. NR 661.1063 (2) if evidence of a potential leak is found by visual, audible, olfactory, or any other detection method. NR 661.1058(2)(2) If an instrument reading of 10,000 ppm or greater is measured, a leak is detected. NR 661.1058(3)(a)(a) When a leak is detected, it shall be repaired as soon as practicable, but not later than 15 calendar days after it is detected, except as provided in s. NR 661.1059. NR 661.1058(3)(b)(b) The first attempt at repair shall be made no later than 5 calendar days after each leak is detected. NR 661.1058(5)(5) Any connector that is inaccessible or is ceramic or ceramic-lined, such as porcelain, glass, or glass-lined, is exempt from the monitoring requirements under sub. (1) and from the recordkeeping requirements specified in s. NR 661.1064.