City of Granbury Water Treatment Plant

CLIENT: City of Granbury
LOCATION: Granbury, TX

eHT provided planning, design and construction phase services for the City of Granbury’s surface water treatment plant (SWTP) expansion increasing the finished water capacity from 2.5 to 5.0 million gallons per day (MGD). Due to increased demands in the service area, it was necessary for the City to expand to the Phase II capacity to maintain compliance with Texas Commission on Environmental Quality (TCEQ) regulations and keep up with the growing demand on the system. The expansion included the addition of a floating raw water pump barge on Lake Granbury; two trains of flocculation and plate settler sedimentation; one microfiltration (MF) feed pump; complete module buildout on the existing MF skids; one MF skid with 100% module capacity buildout; one MF blending pump; one 6,500 gallon aluminum chlorohydrate (ACH) tank and chemical system improvements; upsizing the low pressure reverse osmosis (RO) feed pumps; two new, two-stage RO trains; one high service pump; one million gallon (MG) prestressed concrete clearwell tank; and, a new motor control center for the high service pump station. The Phase II expansion was a challenging project that utilized the already space-limited site to fit all needed process equipment.