Construcciýn de sistema lagunar de 4.85 lps de capacidad consistente en: pretratamiento, lýnea de conducciýn a presiýn, planta de tratamiento de aguas residuales, obra complementaria y telemetrýa en la localidad Col. Esperanza, mpio. de Prýxedis G. Guerrero en el Estado de Chihuahua

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