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Conceptual Request for Proposals . Other factors - Any factors that might reduce the expected perfonnance and degrade the actual (realized) cost effectiveness of the project, N U1 W N Although the details of each proposal will be evaluated for performance risk, the following practices would typically rank from lowest risk to highest risk: . Industrial processes that interrupt brine source, treat the brine, produce a measured (weighed) product, and bill the program, Payments are made annually as salt is produced (or controlled), Measurement of salt is very accurate and only influenced by moisture content, scale accuracy, or laboratory analysis errors" If the program only pays for salt as it is produced and weighed, there is no risk from poor maintenance or management, . Physical improvements like canal and lateral lining which are least subject to "management" risk but are subject to hydrosalinity monitoring and allocation errors, In the Grand Valley Unit, canal and lateral lining has been proven to be very effective at eliminating seepage, Some uncertainty remains from the regional salt loading estimate and its allocation, For example, in the Grand Valley Unit, the regional salt pickup was estimated by the U,S, Geological Survey to be between 480,000 to 680,000 tons per year, Cost effectiveness should be based on the average regional salt pickup, In the case of the Grand Valley Unit, this was 580,000 tons per year, equalizing the upside and downside risk caused by the uncertainty of the regional salt pickup estimate, . Physical improvements like sprinkler systems or automated irriga- tion systems which are less prone to "management" risk. These types of improvements are subject to uncertainty in the actual management of the system as well as the regional salt loading estimate and its allocation between sources, . Irrigation management, These types of improvements are highly sensitive to the degree of irrigation management and are much less reliable than automated improvements, These practices are easily abandoned and require continued technical assistance to sustain in the field, Irrigation management can be effective if its initial costs are low and the technical assistance is provided through the project's life to sustain its benefits, C.4 Negotiation If discussions are necessary, the Contracting Officer (CO) will enter into such discussions with those offerors whose response to this RFP falls within the competitive range, The competitive range will be established by the CO C-14