Lundy, one of six DSC players who will play for his father at Charleston in the fall, had two goals by the 11th minute, completed his hat trick in the 45th minute and added his fourth goal in the 82nd minute.
Dennis Moore and North Carolina-bound Enzo Martinez each had two goals for DSC.
The only other team to win two games is Sereno White. The Arizona team got two early goals from Riggs Lennon and hung for a 2-1 win over SCSA Gold of North Carolina.
In the McGuire Cup, the Baltimore Casa Mia Bays, the only boys team in Lancaster to have previously won a National Championship title, defeated Pike Indy Burn, 2-1, rallying thanks to goals by John Raley from the penalty spot in the 90th minute and Gary Weisbaum two minutes into stoppage time.
Longtime Eastern Pennsylvania rivals YMS Xplosion and Lower Merion Velez, who were in different groups last year and did not meet at the 2008 National Championships, played to a 0-0 tie in under-17 boys action.
Lower Merion, which had a 10-4 edge in shots, Triangle United and CZ Elite are tied for first place with four points.
(The three six-team divisions in which National League entrants are featured play single groups this year -- not two three-team groups as they were divided in 2008.)