WATER TREATMENT

GEA is involved in all phases of Water system infrastructure from pipelines to pump stations to storage tanks and water treatment plants, including consulting, planning, preliminary and final design, preparation of plans, specifications and bid documents, bid evaluation, contract administration, construction supervision / inspection, plant startup and operator training.

PLANNING

GEA provides comprehensive water system and water treatment planning studies, feasibility studies, master plans and water treatment facilities plans designed to meet the needs of cities, town and villages as well as industrial facilities and utilities. GEA has the assessment expertise to evaluate infrastructure and rehabilitation requirements, and prepare maps, plans, tabulations, reports, and presentations.

DISTRIBUTION SYSTEM STUDIES

GEA performs water system evaluation surveys and hydraulic investigations to determine the condition of piping systems in order to design for system rehabilitation. The firm has the special qualifications needed to efficiently investigate facility requirements for expansion, rehabilitation, and/or modification to water distribution systems, as well as investigate alternative water supply, treatment and distribution options.

WATER TREATMENT FACILITIES DESIGN

GEA’s design capabilities for water treatment facilities includes plant modifications, expansion, and upgrades as well as design of new facilities and closure of old facilities. The firm is experienced in the design of water systems ranging in size up to 200 million gallons per day (MGD), pump stations up to 100 MGD, and transmission systems. GEA has extensive experience designing water treatment systems for:

  • Iron and Manganese Removal
  • Corrosion and Scaling Control
  • Hardness Reduction
  • Reduction of TDS
  • Treatment of Brackish Water
  • Desalination
  • Color Removal
  • Filtration
  • Ozonation
  • TOC & TOM Removal
  • Disinfection
  • Coagulation
  • Flocculation
  • Nano Filtration
  • Reverse Osmosis
  • Activated Carbon

PILOT STUDIES

GEA provides the necessary practical experience to implement effective Pilot Treatment Studies Programs under USEPA guidelines. GEA conducts the following Pilot Studies:

  • Jar Testing
  • Filtration Testing
  • Chemical Treatment Testing
  • Column and Ion Exchange Testing
  • Micro and Ultra-filtration Testing
  • Reverse Osmosis Testing
  • Activated Carbon Testing

WATER SUPPLY MANAGEMENT

In the evaluation of water supply and distribution systems, GEA’s responsibilities have included demographic studies to project water demands, comprehensive system hydraulic analyses, the evaluation of the existing pumping stations ranging from 0.25 to 50 MGD in capacity to determine the causes of various hydraulic problems and to make recommendations for their correction, and evaluation of potential water sources. Projects have also included studies of alternative plans, and the recommendation of the most practical and economically feasible program.

GEA’s capabilities also include pipe system analyses using the Hardy-Cross method of system analysis utilizing various software programs, which permit analysis of pipe systems and associated storage tanks, pump stations, wells, pressure reducers, pressure regulators and valves. Entire transmission and distribution systems or portions of systems can be analyzed with normal demands, fluctuating demands and with fire flows of varying rates at selected points in the system. Capabilities include analysis of steady-state systems as well as extended period simulations, such as variations in pump outputs with respect to time, and valves and pumps on or off with respect to tank levels.