Moreover, population growth meant more wastewater, which meant building a second sewage pipe, five miles into the Pacific — a $200 million proposition.
The protagonist reels off some wonderful riffs in his letter to Wen about how if he were building a country, he, too, might choose to install a sewage system first, and then usher in democracy.
Recently, a second type of SaV-A, SaV-A2, was identified in a sewage sample from Bangkok, Thailand.
A second finding concerned the destruction of a wastewater plant, leading to an enormous outflow of raw sewage.
A second major challenge of mass balances is the difficulty of detecting and quantifying target analytes in difficult matrixes including raw sewage and, more importantly, municipal sludge.
Besides the danger of overbuilding, there are stress signs of too-rapid growth: brownouts from an overtaxed electricity grid, a Third World sewage system under the First World high-rises.
On 30 May sewage was first discharged from an emergency outfall on the beach.
But less than a third of the sewage that is generated by the 1.5 million people of Varanasi is treated; the rest goes directly into the river.
This raises two questions, the first - why has clinical surveillance missed the patients excreting IB strains in urban sewages; the second is, why has environmental surveillance failed to identify a significant number of IA-positive samples in wastewaters as might have been expected in light of the outbreak.
More than a third, £342m, is for water and sewage services.
