Many older buildings in certain areas of Boston are supported by wooden piles driven into the area's fill; these piles remain sound if submerged in water, but are subject to dry rot if exposed to air for long periods. Groundwater levels have been dropping, to varying degrees, in many areas of the city, due in part to an increase in the amount of rainwater discharged directly into sewers rather than absorbed by the ground. A city agency, the Boston Groundwater Trust, coordinates monitoring of groundwater levels throughout the city via a network of public and private monitoring wells. However, Boston's drinking water supply, from the Quabbin and Wachusett Reservoirs to the west, is one of the very few in the country so pure as to satisfy federal water quality standards without filtration.
Where does the groundwater go instead of into the ground?
directly into sewers

Lamps designed for different voltages have different luminous efficacy. For example, a 100-watt, 120-volt lamp will produce about 17.1 lumens per watt. A lamp with the same rated lifetime but designed for 230 V would produce only around 12.8 lumens per watt, and a similar lamp designed for 30 volts (train lighting) would produce as much as 19.8 lumens per watt. Lower voltage lamps have a thicker filament, for the same power rating. They can run hotter for the same lifetime before the filament evaporates.
How many lumens per watt does a typical train light produce?
as much as 19.8 lumens per watt

Spielberg followed with War Horse, shot in England in the summer of 2010. It was released just four days after The Adventures of Tintin, on December 25, 2011. The film, based on the novel of the same name written by Michael Morpurgo and published in 1982, follows the long friendship between a British boy and his horse Joey before and during World War I – the novel was also adapted into a hit play in London which is still running there, as well as on Broadway. The film was released and distributed by Disney, with whom DreamWorks made a distribution deal in 2009. War Horse received generally positive reviews from critics, and was nominated for six Academy Awards, including Best Picture.
When did the 'War Horse' book come out?
1982