Complex sentence: Tritium levels were elevated in two of six test wells, according to an Exelon release in February which noted that tritium concentrations of 86,000 piC/L were detected in standing water in underground concrete vaults along the plant's blowdown line.
Split into simpler sentences: Tritium levels were elevated in two of six test wells, according to a company statement. An Exelon release in February noted that tritium concentrations of 86,000 piC/L were detected in standing water in underground concrete vaults along the plant's blowdown line.