20 : 10 : 39 : 38 . Reduced recording period for the 48 hour test. If a qualified analyst concludes that remediation by the utility is required because 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 recording period may be reduced but to no fewer than 24 hours.

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

General Authority: SDCL 49 - 47 - 2.

Law Implemented: SDCL 49-47-2 , 49-47-3 .