As part of the Design-Build or value engineering process, IWS will evaluate the existing infrastructure and treatment system components to determine what may be utilized in the upgraded treatment system. IWS has executed a number of design-build projects whereby we utilized existing tankage and other owner infrastructure to reduce the cost of the treatment system. […]
One of the key components in our evaluation of treatment technologies is the long term O&M cost to operate and maintain the system. We have found that in some cases the O&M savings for utilizing a technology when evaluated over a 20 year period and evaluated on a Net Present Value Basis (NPV) can equal […]
As the leading design-builder and contractor in the onsite wastewater industry, IWS prides itself on helping clients value engineer their treatment system to meet their financial and regulatory project requirements. IWS welcomes the opportunity to meet with you and better understand your project needs and objectives. IWS can team with your engineer or provide direct […]
Total Nitrogen Limits are now routinely included in the discharge requirements for projects throughout the United States. Each state and local jurisdiction has varying requirements, but the default Total Nitrogen (TN) limit in many areas is the US EPA drinking water standard of 10 mg/liter. Depending upon the treatment technology selected, the standard may or […]
The following are an example of evaluation criteria that IWS utilized for a recent treatment system project: Footprint/Configuration – site limitations? Discharge Levels – regulatory requirements? Sludge Production – how much sludge will be produced and how will it be handled? System Complexity/Operator Requirements – what qualifications will my operator need and how often will […]
Dispelling the common myths in the onsite wastewater business. The IWS team can assist you in value engineering your project – including collection, treatment, dispersal, and overall construction. In addition, IWS can provide a constructability review to make sure what gets designed can be constructed without unexpected additional filed costs to the owner. Over the […]
There are a number of factors that impact the selection of a treatment system for a project. Some factors to consider include: Is the initial capital cost the driver for your project or are you concerned with the operating costs? When we do a 20 year Net Present Value analysis for O&M on projects it […]