Waterscapes is a technical publication distributed four times a year. Each issue contains articles focused on important issues in the water and wastewater industry.
In this issue
- WERF Nutrient Removal Challenge (Pg. 2)
- Q&A with Amit Pramanik, Ph.D. of the Water Environment Research Foundation (Pg. 4)
- Nutrient Limitations Demand Low Phosphorus Solutions for the Spokane River (Pg. 6)
- Achieving Less Than 0.050 mg P/L Reliably with Active Chemical Sludge (Pg. 10)
- EPA Rejects NRDC Petition for Rulemaking to Include Nutrients in the Definition of Secondary Treatment (Pg. 13)
- Florida Nutrient Criteria Update (Pg. 14)
- SROI – Metro Wastewater Reclamation District's Application of Nutrient Criteria Cost Benefit Alternative Analyses (Pg. 16)
In this issue
- Extending Reservoir Service Life (Pg. 2)
- 108 Miles and Counting: Large Diameter Water Pipeline condition Assessment (Pg. 5)
- Comprehensive Engineering Review for Metropolitan Utilities District's Florence Water Treatment Plant (Pg. 11)
- City of Scottsdale Reclaimed Water Distribution System (RWDS) Evaluation, Condition Assessment and Conceptual Design Improvements (Pg. 12)
- Rehabbing a Rehab in South Carolina (Pg. 16)
- Johnson County Unified Wastewater Districts Pumping Station Rehabilitation Projects (Pg. 20)
Summer 2012 (Adobe Flash)
Summer 2012 (PDF, 1.8MB)
This issue focuses on emerging and challenging water quality issues and how they relate to the permitting process that supports development of infrastructure projects for municipalities and industry, along with watershed management efforts that address nonpoint and stormwater sources.
In this issue
- Supporting Realistic Numeric Nutrient Criteria (Pg. 2)
- The Biotic Ligand Model for Understanding Metals Effects (Pg. 5)
- Total Daily Maximum Loads: The Coming Wave of Regulation (Pg. 7)
- Hexavalent Chromium, Perchlorate and Nitrosamines: New Challenges for Drinking Water Systems (Pg. 9)
- Invasive Quagga and Zebra Mussels (Pg. 12)
- Management of Disruptive Aquatic Species in the Pacific Northwest (Pg. 16)
- Microconstituents: An Overview (Pg. 19)
In this issue
- Council Bluffs Water Works Council Point Water Treatment Plant - Integrated UF/RO Treatment Processes for Challenging Raw Water (Pg. 5)
- New Membrane Technology for Reuse at a Zero Discharge Power Plant (Pg. 8)
- Innovative RO/Selenium Removal Process Allows for Water Reuse and Sustainable Agriculture in the Central Valley (Pg. 10)
- Desalinated Water in the Distribution System (Pg. 12)
- Meeting Customer Water Quality Expectations Maintaining Recycled Water Quality through Distribution and Storage (Pg. 14)
- Desalting Applications Around the Globe (Pg. 16)
- HDR's Salinity & Impaired Water Source Management Initiative for the Reuse, Desalination, Industrial and Municipal Markets (Pg. 18)
December 2011 (Adobe Flash)
This issue features a series of articles that review a broad scope of biosolids and odor control issues.
- Message from Technical Editor Larry Hentz (Inside Cover)
- Genesis of Struvite Formation at Durham (Pg. 1)
- Q&A with David Taylor of the Madison Metropolitan Sewerage District (Pg. 5)
- Biosolids Management Land Application Pressures (Pg. 6)
- Hampton Roads Atlantic Treatment Plant Acid-Gas Anaerobic Digestion Process (Pg. 7)
- Codigestion of Imported Organics and Wastewater Biosolids (Pg. 10)
- Odor Control Principles and the Use of Biological Odor Control Technologies (Pg. 12)
- CFD Modeling at the York River Treatment Plant Composting Facility (Pg. 16)
- Mathematical Modeling of Airflow in the City of Los Angeles Interceptor System (Pg. 18)
Summer/Fall 2011 (Adobe Flash)
This issue reviews some of HDR's experiences in helping our clients manage large infrastructure programs.
- Message from Technical Editor David Ludwin (Inside Cover)
- HDR Providing Construction Management Services for Major San Francisco Water Program (Pg. 1)
- Two Decade Brightwater Treatment System Project Nearly Complete (Pg. 5)
- Cascade Water Alliance is Case Study in Teaming Up to Manage Water Supply Demands (Pg. 8)
- Planning and Program Management for Wet Weather CSO Projects (Pg. 11)
- Hampton Roads Sanitation District Sewer System Program Successfully Completed on the Fast Track (Pg. 14)
- Spokane County Wastewater Program Meets Highly Restrictive Discharge Standards (Pg. 16)
- The City and County of Honolulu Find an Integrated Program Management Team (Pg. 20)
- HDR Helps Agencies Support Major Estuary Water Quality Improvements - Bay Delta and Puget Sound (Pg. 23)
Spring 2011 (Adobe Flash)
This issue presents articles that describe the successful use of alternative delivery methods on several projects. Additionally, there are technical articles describing risk management techniques and the mechanics behind the Progressive Design-Build and Design/Construction Management-at-Risk delivery models.
- Message from Technical Editor John Awezec (Inside Cover)
- Managing Risk with the Design-Build Model (Pg. 1)
- Design-Build Shale Gas Water and Wastewater System for Heckmann Water Resources (Pg. 3)
- Progressive Design-Build (PDB) - An Alternative Project Delivery Approach that Maximizesan Owner's Involvement, Flexibility and Control (Pg. 6)
- Construction Management-at-Risk - Between DBB and DB in the Alternative Project Delivery Spectrum (Pg. 9)
- Design-Build Process Helps Castle Rock Meet Tight Project Completion Deadline (Pg. 14)
- Executing a First-Of-Its-Kind Biosolids Facility Using Design-Build (Pg. 16)
- Progressive Design-Build Used for Scottsdale Zone 2 Water System Improvements (Pg. 21)
Winter 2011 (Adobe Flash)
This issue is focused on Integrated Water Planning and Resource Management.
- Diverse Interests Collaborate to Meet Challenges in Yakima River Basin (Pg. 1)
- City Provides Continuous Improvement of Successful Water Reclamation Program (Pg. 3)
- City Undertakes Idaho's First Large-Scale Municipal Reclaimed Water Program (Pg. 4)
- The Benefits of Integrated Water Conservation Planning (Pg. 6)
- Jurisdictions Combine Efforts to Achieve Regional Water Supply and Quality Goals (Pg. 8)
- FERC Relicensing Process Leads to Development of Water Planning Working Group in Carolinas (Pg. 10)
- Enhanced Selenium Treatment Efforts Necessary Under New Water Quality Standards
- Urban Area Revisits Integrated Planning Process Following Economic Slowdown (Pg. 13)
Fall 2010 (Adobe Flash)
Sustainability projects and research tools are the focus of five in-depth articles in this issue.
- Award-Winning Gills Onions Project Turns Waste Reduction Concept into Breakthrough Energy Saving System (Pg. 1)
- Metro Wastewater Reclamation District Study Ensures Denver's Commitment to Sustainability (Pg. 5)
- Forecasting Can Help Counter Water Supply Challenges Presented by Global Climate Change (Pg. 9)
- Striking a Balance Between Nutrient Removal and Sustainability (Pg. 13)
- Introducing the Sustainable Return on Investment: an Objective and Transparent Approach (Pg. 16)
Summer 2010 (Adobe Flash)
HDR has established itself as one of the nation's leading research firms thanks to its partnerships with three water research foundations and the United States Environmental Protection Agency. Five research projects HDR is working on or has completed are highlighted in this issue.
This issue of Waterscapes focuses on current regulatory developments and trends that may result in future requirements.
Much of the water and wastewater infrastructure in the United States has reached the point where age is beginning to take its toll. This issue focuses on pipeline condition assessment and rehabilitation.
This issue focuses on integrated water planning and management and the challenges faced by water supply professionals who have to plan, develop and manage these supplies.
With a special focus on wet weather projects, this issue features challenging issues confronting drinking water and wastewater utility managers.
Features challenging issues confronting drinking water and wastewater utility managers.