8-6-25 Planning Board Minutes - Laserfiche WebLink

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Approved 9.3.25 549 550 Ward Marotti: I'm just pointing out that not only is there that big drop, but you can also notice in that,just purely 551 speculative answer to that is either on-site use for irrigation or an adjacent user's use because you 552 can see in that little series that has the substantive vertical drop,there's also very rapid return. 553 554 Beth Bronson: Absolutely. 555 556 Ward Marotti: And so, it's going down, and then filling back up. And again, I can speculate about what potential 557 causes and sources are, but it has nothing to do with anything. 558 559 Beth Bronson: Completely speculative. I just didn't know as a professional. 560 561 Ward Marotti: Yeah.That's what sprang to mind to me when I saw that was an adjacent user or use for irrigation. 562 The hose was cut on and off and that is to some degree what explained that rapid rise and then 563 again, a rapid drop in the water surface elevation. 564 565 Beth Bronson: Okay. 566 567 Ward Marotti: Good. No, that's a great question. Absolutely. 568 569 Beth Bronson: Trying to understand that from the hydrologist or hydrologist specialist,what would account for 570 some certain randomness. See here it drops, or not. And then there, I wanted to know how many, 571 what is it, gallons per minute? It was? 572 573 Ward Marotti: The steady state was 90 gallons per minute. 574 575 Beth Bronson: 90. That's right. 576 577 Ward Marotti: The proposed use is a maximum. The state requirement is .57 gallons per user, and so the 578 steady state is almost quadruple the state minimum. 579 580 Beth Bronson: No, as a local, I am very aware of the triple A quality of the water around here. 581 582 Ward Marotti: So,the steady state is well above what the maximum use per the state threshold is. 583 584 Beth Bronson: Certainly. And then in the actual 24-hour testing,was there any like notation or asterisk about the 585 100-year flood that was experienced 2 weeks before? Does that have any impact? In your 586 professional opinion. 587 588 Ward Marotti: It would have similar impacts on all the wells, and the point was to document whether there were 589 not the impacts of precipitation events that would be, to some degree, consistent between sample 590 sites, but to some degree it wouldn't be because we're talking about 600 feet down and 70 feet 591 down. 592 593 Beth Bronson: Certainly. In those 2 weeks,yeah. 594 595 Ward Marotti: Supplies that are dependent more on direct surface water infiltration are going to have a much 596 more prompt impact based on precipitation events then ones that are 600 feet through rock. 597 598 Beth Bronson: And just to translate for the generic audience members that over those 2 weeks,there's no 599 chance that the water that came down will have an effect on what's 600 feet below. 600 601 Ward Marotti: Oh, I wouldn't say no chance. Unlikely. 602 603 Beth Bronson: Unlikely chance. Okay. Thank you very much.