No rest rooms or water but fast food on Georgia Ave 0.2 mile east of MD-108 opens early. Also several restaurants going east on New Hampshire Ave and CVS at corner of New Hampshire Ave and MD-108.
Directions:
From Beltway Exit-31, take MD-97 / Georgia Ave north 10 miles and turn right on MD-108 / Olney-Sandy Spring Rd at the traffic light. Proceed 1.8 miles to school on left. II: From Beltway Exit-28, take MD-650 / New Hampshire Ave north 10 miles. Turn left on MD-108 and go 1 mile to school on right.