Challenges in Implementing the Use of Reclaimed Water
The State of Washington is currently in the process of adopting standards for use of reclaimed water on land. CH2M HILL recently has finished two feasibility level studies for reuse projects...
The City of Los Angeles Gray Water Pilot Project Shows Safe Use of Gray Water is Possible
A year-long study of eight residential gray water systems was conducted in the City of Los Angeles. Soils irrigated with gray water were compared monthly with soils irrigated with municipal...
Bellingham Frozen Foods Spray Irrigation System Operations
Bellingham Frozen Foods is a major vegetable processor located in northwestern Washington state. During the mid-1980's, the city of Bellingham began to upgrade the treatment of wastewater....
EBMUD's Approach to Demand Reduction
The East Bay Municipal Utility District (EBMUD) supplies water to more than 1.2 million people in the East Bay area of California. The District has developed a comprehensive plan to deal...
Selection of Optimal Best Management Practices (BMP's)
The National Pollutant Discharge Elimination System (NPDES) urban storm water program requires municipalities to remove non-point source (NPS) pollution to the 'maximum extent practicable',...
Urban Runoff Considerations in the Design of Wastewater Management Programs for Coastal Areas
The continuing increase in the population of the nation's coastal areas is placing additional stress on coastal aquatic systems faster than it can be reduced through improved wastewater...
Receiving Water Quality Bases for Evaluating CSO Control Alternatives
Waters receiving combined sewer overflow loadings in the vicinity of Bangor, Maine include the Kenduskeag Stream and the Penobscot River. The city's facilities planning effort was performed...
Application of the Storm Water Management Model in Evaluating Combined Sewer Overflows
This paper summarizes the application of the stormwater Management Model (SWW) to isolate the contributions of Combined Sewer Overflows (CSOs) to a receiving water. The CSO discharges...
Utilization of Roadway Crossings as BMP's in Urban Areas
Roadway crossings of natural waterways in the urban setting can be used as Best Management Practices (BMP's) by retrofitting existing outlet structures. Pollutant removal is contingent...
Storage of Combined Sewer Overflow: How Effectibe is it Anyway?
The purpose of this paper is to illustrate the importance of modeling long term rainfall records to evaluate the effectiveness of combined sewer overflow storage. This paper will present...
NPDES Municipal Storm Water Permit?A Utility Approach
Salt Lake City Department of Public Utilities (SLCPU) is the agency responsible for the operation of the drainage facilities in Salt Lake City. The drainage function is established as...
Storm Water Utility Experience in Bellevue, Washington
Surface water management is seen as a flood protector by most, a savior of the environment by some and a subversion of property rights by others. As recently as 20 years ago, there were...
Continuous Simulation Modeling for Sewer Systems
The peaking-factor method of sanitary sewer design was developed to simplify the calculations in determining design flow rates. This method of analysis is conservative to the point that...
Projecting Customers Using a GIS Land Use Forecasting Model
The Salt River project originally developed the Land Use Forecasting Model to understand the pattern of urbanization of agricultural and desert land in metropolitan Phoenix. The model...
The County Sanitation Districts' Experience in Computerized Solid Waste Management Data
The County Sanitation Districts of Los Angeles County, California (Districts) utilize computers and computerized information for a wide range of applications related to their solid waste...
The Design and Installation of a Distributed Controls System at the Bissell Point Wastewater Treatment Plant: A Case Study
The Bissell Point Wastewater Treatment Plant is undergoing a $210 million dollar change, which includes a new Distributed Controls System (DCS). The new DCS is being installed in phases...
Mitigation of Excessive Wastewater Infiltration/Inflow Effects for US Army Installations
Wastewater collection system on military installations require periodic maintenance and repair, and occasionally upgrading. Deterioration of wastewater systems enables the entry of extraneous...
Proposed Storm Water Management Programs: An Opportunity for Coastal Municipalities to Improve Water Quality
On November 16,1990, the Environmental Protection Agency (EPA) promulgated a final regulation establishing National Pollutant Discharge Elimination System (NPDES) permit application requirements...
Water Quality Impacts of a Lead/Zinc Mine in Northwest Alaska
In order to assure that water quality in the Red Dog Creek/lkalukrok Creek/Wulik River watershed returned to pre-mining conditions, the order required that water quality and fish tissue...
Some Considerations About a Coastal Lagoon (RJ-Brasil) Trophic Level
The growing urban occupation in coastal areas has generated environmental disturbs such as the eutrophication of semi-enclosed water bodies. The Marapendi Lagoon, located at a fast developing...
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