lego set for you. >> reporter: and to give kenzo some new legos. >> we got a kick out of the lettert's something that brightened our day in this time where we're all struggling and dealing with different things. >> it kind of transformed actually everything. i kind of gave us a reset button. >> reporter: now, the moral of the story is not that san mateo public works will replace what you lost down the drain. it's that in a year that's been dominated by the grinch, santa can show up in the most unexpected of places. garvin thomas, nbc bay area news. >>> we have much more ahead for you on "today in the bay." pfizer's vaccine gets emergency use authorization and it could arrive in the bay area soon. >>> plus, restaurant owners in san francisco are asking the city to make one change as they struggle to make ends meet. ♪ ♪ i got it all from you ♪ i'm always pushing through ♪ i know we'll make it to the finish line ♪ ♪ i know you're waiting on the other side ♪ ♪ i'm like you on-demand glucose monitoring. because they're always on. another life-changing technology from abbott. so you don't

it was from a boy named kenzo who lost his lego down the bathroom drain and asked if they could send it back. he included a picture of it. >> it's just this painting. i thought, oh, my god, this is the best day ever. we never get action like this. it was awesome. >> reporter: so, did the staff go to work scouring the treatment plant for kenzo's lost lego? of course not. >> no. it doesn't quite work that way. >> reporter: brad underwood is the public works director. >> the plant is a huge plant. it's difficult to find things. it would be like a needle in a hay stack. we don't really search for things like that. >> reporter: what they did do though was bring a smile to his face. >> it made our day. >> reporter: they invited him to the treatment plant for a tour. >> this is a little lego set for you -- >> reporter: and to give kenzo new legos. >> we all got a kick out of the letter. it's just something that brightened our day in this time when we're all struggling and dealing with different things. >> it kind of transformed everything. it kind of gave us a reset button. >> reporter: the

." >> it was a boy named kenzo who lost his lego down the bathtub drain and asked if they could get itust this crayon thing. and i thought this is the best day ever. we never get action like this. so, yeah, it was awesome. >> reporter: so, did the staff go to work scouring the treatment plant for kenzo's lost lego? of course not. >> no. it doesn't quite work that way. >> reporter: brad underwood is san mateo's public works director. >> it's difficult to find things anyway. so it'd be like a needle in a haystack. we don't really search for things like that. rchdget what they did do though for a boy who brought a smile to their faces was to bring one to his. after some searching she tracked down kenzo's family and invited them to the treatment plant and to give kenzo some new legos. >> we all got a kick out of the letter because it's just something that brightened our day in this time where we're all struggling and dealing with different things. >> it just kind of transformed everything. it kind of gave us a reset button. >> reporter: now, the moral of the story is not that san mateo pub