Measurements
ADS Environmental Services utilizes specialized equipment to measure pressured flow in water distribution systems. Flow measurements can be used to calculate flow capacity in water distribution systems, accurately measuring actual flow velocities and velocity profiles.
District Measurements - The distribution system is divided into districts to measure hourly rates of flow and 24-hour consumption patterns. By comparing the minimum rate of flow at night in a given area with its total consumption, a leakage potential for that area can be accessed.
District measurements can be used to determine diurnal curves for use in a computer model. Demand curves provide critical data for extended period simulations.
Hydraulic Grade Line Measurements - The purpose of the measurements is to determine hydraulic grade lines under various flow conditions, to determine how the water circulates through the trunk mains and to discover any other conditions pertinent to carrying capacity. This information is used to calibrate the model, to ensure that there are no closed or partially closed valves, and to develop reinforcements that fully utilize the existing system. The test consists of simultaneously recording system pressures and flows at a number of strategic locations.