so it started out 4-6gpm 21 yrs ago and now at .5, so are you gonna have to redrill/deepen the well anyway in a few years when the .5 goes to .05? to me it sounds like you could give them about 10k now, or install the holding tanks etc then 5 yrs later have to give them 10k (15 by then) anyway... this would be my biggest concern. knowing no more than i do about your setup or alaska wells in general, i think i would drill it deeper, if nothing else have the extra storage in the well, drop a pump to the bottom and be done. sounds like it might be one of those pay me now or pay me later things. maybe some others will have better ideas.