31 Jul 95
(e) Interagency programs such as U.S. Environ-
mental Protection Agency Superfund program
expanded the scope of water management participa-
tion in addressing Corps environmental issues. Envi-
ronmental engineering, water quality, biological, and
water control expertise are essential to address issues
related to the following:
a. Structural modifications.
(1) Aquatic habitat.
(1) Outlet structures.
(a) Aquatic habitat studies.
(a) Selective withdrawal to control downstream
water quality and effect desired in-pool changes.
(b) Mixers and aerators to improve outflow
(c) Fish habitat studies.
(c) Weirs, sills, and baffles to efficiently aerate
and promote gas exchange.
(e) Zebra mussel or other invasive/exotic species
(d) Turbine venting to improve downstream
(f) Endangered species protection and
(e) Design to eliminate gas supersaturation
(2) Long-term management strategies for the dis-
posal of dredged material.
(f) Tailwater/outflow fishery habitat design (i.e.,
rocks, outflow embayments).
(3) Wetlands habitat.
(g) Fish passage devices to provide passage over
(a) Monitoring of wetlands.
and around vertical obstructions.
(b) Management of wetlands.
(h) Use of Olzewski tubes for selective
(c) Wetlands studies.
(i) Work with contractors and retrofit developers
to ensure that water quality and other project pur-
(e) Wetlands creation.
poses are not adversely impacted.
(4) Upland habitat creation.
(2) In-pool structures.
(5) Hazardous, toxic, and radioactive wastes
(a) Mixers, diffusers, pumps, and aerators to
destratify impoundments and aerate hypolimnetic
(a) Onsite cleanups.
(b) Shoreline stabilization and use of vegetation
(b) Monitoring of HTRW.
to control erosion.
(d) Development of remediation plans.