Due to the Memorial Day Holiday, trash pickup will be delay by one day.

From Londonderry website:
2017 Trash & Recycling Holiday Schedule

The following holidays are the only holidays recognized for trash and recycling collection delay. When a holiday falls on Monday through Friday, trash and recycling collection will be delayed one day for all collections after the holiday.

New Year’s 2017 January 1, 2017
Sunday Holiday, Pickup on Regular Schedule

Memorial Day May 29, 2017
Mon. through Fri. pickups 1-day delay

4th of July July 4, 2017
Tues. through Fri. pickups 1-day delay

Labor Day September 4, 2017
Mon. through Fri. pickups 1-day delay

Thanksgiving Day November 23, 2017
Thurs. & Fri. pickups, 1-day delay

Christmas Day December 25, 2017
Mon. through Fri. pickups 1 day-delay

New Year’s 2018 January 1, 2018
Mon. through Fri. pickups 1 day-delay

(i.e.: for a Monday holiday if your scheduled trash/recycling pick-up day is on Monday it will be picked up on Tuesday, Tuesday’s pick-up will be on Wednesday, Wednesday’s pick-up will be on Thursday, Thursday’s pick-up will be on Friday and Friday’s pick-up will be on Saturday.