The water is tested according to a PA DEP prepared monitoring calendar that complies with all State and Federal regulations. All testing is done by PA DEP certified laboratories. The hydrologic cycle describes the constant movement of water above, on and below the earth's surface. Water changes states between liquid, solid and gas during the cycle. Condensation, evaporation and freezing of water occur in the cycle in response to the earth's climatic conditions.
Surface water is evaporated from the Earth by the energy of the Sun.
The water vapor forms clouds in the sky. Depending on the temperature and weather conditions, the water vapor condenses and falls to the Earth as different types of precipitation. Some precipitation runs from high areas to low areas on the Earth's surface. This is known as surface runoff. Other precipitation seeps into the ground and is stored as groundwater.