1.A building is located 19 ft from the centerline of the inside lane of a curved section of highway whose radius is 400 ft. The road is level and e = 10. Determine the posted speed limit (to the nearest 5 mph) considering the following conditions:
a. Stopping sight distance
b. Curve radius
2.At a chlorine concentration of 3 mg/L, how much time is required to achieve the required Giardia inactivation of 99.9% at pH = 8.0 and pH 6.0?