Investment in replacing water supply pipes in Ward 3 - District 11. Location: alleys on Lac Long Quan street (alley 106A - from 106A/70 to 106A/26; alley 56A - from 56A/38 to 56A/68; alley 26A – from Lac Long Quan street to 26A/34; alley 106B – from 106B/74 to 106B/120BIS; alley 56B – from 56B/42 to 56B/72; alley 26B – from 26B/2A to 26B/40)