Nat. Hazards Earth Syst. Sci. Nat. Hazards Earth Syst. Sci. Modeling of E. coli distribution for hazard assessment of bathing waters affected by combined sewer overflows Locatelli Luca Russo Beniamino Acero Oliete Alejandro Sánchez Catalán Juan Carlos Martínez-Gomariz Eduardo Martínez Montse 2020 research-article