20:10:39:19Preventive

action level exceeded. If stray current or stray voltage exceeds the preventive action level after completion of the 48 hour test, the utility shall perform the four remaining tests, unless testing is suspended or limited pursuant to § 20:10:39:21. The utility shall also perform an analysis to determine if a portion of the stray current or stray voltage attributable to an off-farm source exceeds 50 percent of the preventive action level. If the preventive action level is exceeded and the portion of the stray current or stray voltage attributable to an off-farm source does not exceed 50 percent of the preventive action level, the utility has no further obligations under these rules during the test cycle. If the preventive action level is exceeded, and the portion of the stray current or stray voltage attributable to an off-farm source exceeds 50 percent of the preventive action level, the utility shall conduct remediation pursuant to SDCL 49-47-3.

Source: 42 SDR 174, effective June 21, 2016.