Years of drought interrupted by occasional cloudbursts dropping up to 12 inches in one day caused problems in the older sections of New Braunfels, Texas.During winter of 2009-10, the Telog sewer data acquisition system showed that four of 23 lift stations ran continuously for 36 hours after rains. Unprecedented rains increased flows at the treatment plant from 6 to 10 mgd – the design capacity.An inspection by Pipeline Analysis, an engineering firm in Dallas, revealed structural issues in the clay and reinforced concrete sewers in older neighborhoods. Root intrusion also contributed to inflow and infiltration. The firm advised the utility
