Will EPA Relax Its Mandatory Secondary Treatment Requirement�
In the Clean Water Act of 1977, Congress said that under some circumstances communities discharging to marine waters might not have to provide full secondary treatment. At the present...
Reducing Sewer Infiltration/Inflow
Under the terms of the EPA Water Pollution Control Legislation, cities must eliminate excess infiltration/inflow to be eligible for 75% EPA sewerage construction grants. To determine the...
Bypassing Sand at Coastal Inlets
To reduce dredging requirements and to provide calm navigation channels, the U.S. Corps of Engineers often constructs jetties and breakwaters. These structures block sand drifting along...
Reef Runway is First in Airport Design
The Reef Runway Project of Honolulu International Airport constructed on a coral reef, provides approximately 765 acres of new land for the 12,000-ft-long runway with its associated taxiways...
Cofferdams�Economical Flood Protection
Houston Lighting and Power Co. Sam Bertron Generating Station, located on the Houston Ship Channel, had suffered a drop in elevation of 7.5 ft since its construction in 1954. At such a...
EPA Launches Program to Control Hazardous Wastes
In January 1979, the federal Environmental Protection Agency will issue its long awaited guidelines on the control of hazardous wastes. These guidelines will propose a so-called manifest...
Filter Fabrics in Shore-Protection Structures: Save Money, Ease Installation
Over the past decade, plastic filter fabrics have seen growing use in shore-protection structures (e.g. revetments, breakwaters, jetties), river-bank protection schemes, and other areas...
Sled Mounted Hydro-Jet Injector Buries Transatlantic Cable
A need for reliable and uninterrupted overseas telephone communications required that the transatlantic cable (TAT 5) be placed in a secure position below the ocean floor where it could...
A Critical Appraisal of Some Proposed Changes to the 1972 Water Pollution Control Act
The amendments that will ultimately be made to the 1972 Water Pollution Control Act (PL 92-500), now being discussed by Congress, will be influenced by a number of things happening in...
Proven Organic Coatings for Long Term Protection�� Part II
Recent advances in coatings materials and their application make possible improved protection of structures in normal or aggressive environments. Shopcoating and field application are...
Innovative Design at Florida Bulkhead Reduces Material and Construction Costs
Remedial work to an existing bulkhead at a deep-water berth for Port Everglades, Florida, has been done with substantial savings through the application of innovative design concepts....
Value Engineering Made Mandatory on EPA Projects Over $10,000,000
EPA makes VE mandatory on projects over $10 million. Eleven VE teams in five 40-hour workshops. Isolated changes of $1.2 million on typical $4.1 million project which were acceptable to...
Polyethylene Pipe Solutions to Sewer Outfalls
One of the primary concerns of the Chief of Naval Operations is to insure that environmental pollution standards are met in this country and abroad at those naval bases near oceans or...
Salt Damaged Bridge Decks: Cathodic Helps
Cathodic protection of bridge decks against spalling caused by deicing salts has been demonstrated effective in decks already damaged. Construction of new decks may use other means to...
Proven Organic Coatings for Long Term Protection
Recent advances in coatings materials and their application make possible improved protection of structures in normal or agressive environments. Shopcoating and field application are compared....
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