PB Agenda Packet 3-4-26 - Laserfiche WebLink

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31 o Distribution system engineer designs water distribution o Review by utility operator o NC DEQ final permitting after distribution design o Construction Well Drilling Costs • Expenses vary significantly per well • Drill costs influenced by depth, surface casing, diameter requirements, and site access • Maintenance costs include pump replacement, well cleaning, and water quality monitoring Long-Term Well Health • Well lifespans generally range 30-50 years, but may be extended with proper maintenance—cleaning reduces the strain on filtration systems, and not running the well too much (it's not meant to run 24 hours per day) prolongs its lifespan • It is difficult to build a new well after the old one expires, especially if there are homes all around • Redundancy is recommended—have another site available! • Regional groundwater trends may impact well lifespans beyond the control of operators (water mining, contamination, anthropogenic forcings) Commissioner Questions Questions Commissioners previously asked that relate to these topics, alongside additional questions asked during this part of the meeting. • How do the types of rocks matter for water supply to wells? o Types of rock matters to a great degree, but that is part of the whole for each site. Rock types vary from site to site and some rock types may be better in one region due to local deformations as opposed to other regions where they remain minimally altered. o Bedford: some community oppose diabase rock, claiming it is more likely to deplete other wells in the area. Is that accurate? ■ Diabase rock does allow for more breakdown and weathering—can be a channel, or a means to take out water ■ However: Any well runs the risk of drawing down another well. Utilities and project professionals can advise if drawdown is a substantial