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WASTEWATER EXPERIENCE
DE has successfully completed (or have ongoing)
over 1000 improvement projects, primarily
for public bodies. Of these, over 100 were
wastewater projects.
Wastewater Projects Have Included A Number
Of The Following Types:
- Gravity and Pressurized Collection Systems
- Pumping/Re-Lift Stations
- Force Mains
- Treatment Plants
- Control Systems
- Hydraulic Modeling
- Relocations
- Regulatory Assistance
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Representative examples of the wastewater
projects accomplished by DE are listed below:
Regional Wastewater Systems
DE has experience in regional wastewater
systems. DE has successfully designed and
constructed a regional wastewater system
to serve the communities of Grayson and Clarks.
Wastewater Collection
DE has vast experience in the planning, designing
and construction of wastewater collection
systems. DE utilizes Haestads SewerCad to
develop sewer main slopes and velocities.
Prime examples of this type of project are:
Arcadia Sanitary wastewater collection system
comprised of 10 & 8 PVC mains, pre-cast
concrete manholes and sewage pumping stations.
Oak Ridge Sanitary wastewater collection system
comprised of 8 PVC mains, pre-cast concrete
manholes and sewage pumping stations.
Florien Sanitary wastewater collection system
comprised of 8 PVC mains, pre-cast concrete
manholes and sewage pumping stations.
Provencal Sanitary wastewater collection system comprised
of 8 PVC mains, pre-cast concrete manholes
and sewage pumping stations.
North Hodge Sanitary wastewater collection system
comprised of 8 PVC mains, pre-cast concrete
manholes and sewage pumping stations.
Grayson Sanitary wastewater collection system comprised
of 8 PVC mains, pre-cast concrete manholes
and sewage pumping stations.
Clarks Sanitary wastewater collection system comprised
of 8 PVC mains, pre-cast concrete manholes
and sewage pumping stations.
Sikes Sanitary wastewater collection system comprised
of 8 PVC mains, pre-cast concrete manholes
and sewage pumping stations.
Kilbourne Sanitary wastewater collection system comprised
of 8 PVC mains, pre-cast concrete manholes
and sewage pumping stations.
Oak Grove Sanitary wastewater collection system comprised
of 8 PVC mains, pre-cast concrete manholes
and sewage pumping stations.
Wastewater Treatment
DE has successfully planned, designed and
constructed numerous wastewater treatment
facilities. These facilities include biological
treatment facilities and physical/mechanical
treatment facilities with advanced wastewater
treatment processes. Each facility was designed
to produce an effluent that would meet the
receiving streams discharge limits as established
by the governing authority in relation to
the applicable Water Quality Management Plan
as mandated by the Federal Clean Water Act.
Examples of these projects are as follows:
Lake Providence - 5.0 MGD biological facility comprised of
oxidation ponds, pumping station and a 12
treatment effluent transmission main to the
outfall in the Mississippi River.
Hornbeck - .08 MGD biological facility comprised of
an oxidation pond, rock-reed filter and disinfection
facilities.
Provencal - .05 MGD biological facility comprised of
an oxidation pond, rock-reed filter and disinfection
facilities.
Grayson/Clarks - .15 MGD biological facility comprised of
two oxidation ponds, rock-reed filter and
disinfection facilities.
St. Joseph - .20 MGD biological facility comprised of
an oxidation pond, rock-reed filter and disinfection
facilities.
Sikes - .05 MGD biological facility comprised of
an oxidation pond, rock-reed filter and disinfection
facilities.
Monroe - 20 MGD physical/mechanical facility comprised
of sedimentation and filtration, advanced
treatment processes and disinfection facilities.
Oak Grove - 2.0 MGD extended aeration/activated sludge
facility comprised of aeration basin, clarifier
and disinfection facilities.
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