Energy cost requirements were accounted for depending on the electricity need of each unit. It is notable that this requirement does not apply to units without electricity use (i.e., POU chlorination and AgNP CWFs). The initial step of TEA involves identifying the specific objective for cost assessment, determining the components comprising the technology, and identifying the various factors that contribute to overall cost (e.g., cost of UV lamp, labor cost). The next step entails data compilation of on the cost associated with each material and determining the frequency at which such costs will be applicable in cases involving replaceable parts. It is important to note that capital costs are also spread out through the analysis period (5 years baseline period). Discounted cash flow analysis was applied to account for future value of money over the technology's lifespan with a 5% discount rate on average. Subsequently, the following step involves identifying and considering capital costs associated with construction, operation, and maintenance over the entire duration of the analysis. The cost analysis was designed to account for impacts of water quality from each unit while achieving necessary disinfection efficacy.