Industry Challenges EPA on Whether Certain Wastes are Hazardous or Not
Before the U.S. can clean up its hazardous wastes, it must first decide which wastes are hazardous, which not. The case histories presented here show that this decision is not always easy...
Will EPA'S Nationwide Urban Runoff Study Achieve Useful Results�
Approximately 30 studies are now underway across the United States as part of the Nationwide Urban Runoff program (NURP) to evaluate the water quality significance of stormwater drainage...
Design of Water Intake Structures for Fish Protection
This publication presents the results of a study on available technical information on the characteristics of water intake structures designed to eliminate or reduce damage to fish. Biological...
Marketplace Solutions to Air Pollution
EPA is promoting new approaches to achieve clean air standards: bubbling, offsetting, banking and emission fees. The programs are flexible, encouraging industry to find the cheapest, most...
Design and Construction of Long-Span Metal Culverts
Long-span metal culverts are built of corrugated-metal plates bolted together. They have spans exceeding 15 ft. Principal applications include use as drainage structures, grade separations,...
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...
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...
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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