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31 <br /> 1 C.J. Cornette said long-term maintenance includes well rehabilitation for mineral buildup <br /> 2 and biofilm formation. He said he performs 5-10 rehabilitations annually, using methods like <br /> 3 chemical treatment, high-pressure jetting, brushing, and development. He emphasized each <br /> 4 well's uniqueness in determining appropriate treatment methods. He said the higher <br /> 5 construction standards of community wells can provide confidence that the system is meant to <br /> 6 last. Regarding well longevity and failure, C.J. Cornette reported drilling about three <br /> 7 replacement wells annually for communities, with original wells often lasting 30+ years. He <br /> 8 stressed the importance of monitoring for issues like system leaks that can overtax wells and <br /> 9 the value of redundant well sites, though acknowledging space constraints in developments. <br /> 10 <br /> 11 Slide #24 <br /> Long-Term Well Health <br /> • Regional groundwater trends may impact well <br /> lifespans beyond the control of operators. <br /> • Water mining <br /> • Contamination <br /> • Anthropogenic forcings <br /> 12 Ap <br /> 13 C.J. Corvette said groundwater trends are used to evaluate well health. If a whole region <br /> 14 or development is seeing low water, they might look at if the well is being run for more time than <br /> 15 it's supposed to be, or if there's more demand in the system, or if there's a leak in the system. <br /> 16 He said contamination can influence any active system at any time. He added that one of the <br /> 17 biggest takeaways in his career has been that humans, or anthropogenic forcings, seem to be <br /> 18 the most significant, measurable, and obvious way that wells and regional groundwater trends <br /> 19 are influenced. <br /> 20 <br /> 21 <br />