Word: reservoirs
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Dates: during 1990-1999
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...warmer temperatures manganese is present near the surface of the Fresh Pond reservoir, Healy said. But when the temperature drops suddenly, manganese sinks to the bottom of the reservoir and is pumped into the city's water pipes...
Duehay, the chair of the council's environmental committee, said the drinking water in the Fresh Pond Reservoir is endangered by leaking under-ground oil tanks...
Cambridge's water drinkers, already concerned about the liquid's current unsightly discoloration, gained another reason to worry this week as it was revealed that the city routinely cycles sludge filtered from the water back into a public reservoir...
...main problem is filling up the reservoir,"he said. "Possibly, depending on what they'retrapping in the sludge, viruses and protozoa couldalso become concentrated [in the redepositedwaste...
...fall leaves and the organic matter from the reservoir add color to the raw water in much the same way as a tea bag works when tea is brewed," stated the press release...