Cut a strip of peel around the middle of each potato. Place potatoes and water in a 6-qt. electric pressure cooker. Lock lid; make sure vent is closed. Select manual setting; adjust pressure to high and set time for 12 minutes. When finished cooking, quick-release pressure according to manufacturer's directions. Drain any cooking liquid; return potatoes to pressure cooker., In a small bowl, combine butter, parsley, lemon juice and chives. Pour over potatoes; toss to coat. Sprinkle with salt and pepper.