Alamosa: Report on 2008 salmonella outbreak blames aging infrastructure, inspection regime

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Here’s a look at the City of Alamosa’s response to last week’s report on the 2008 salmonella outbreak, from Ruth Heide writing for the Valley Courier. From the article:

Alamosa Public Works Director Don Koskelin has responded to a recently released state report on Alamosa’s 2008 salmonella crisis. “There’s no big surprises,” he said…

Koskelin added that the Weber Reservoir was not in the best shape at the time of the salmonella crisis but was already slated to be out of service. Koskelin said the Weber Reservoir was constructed in 1979 and the roof was replaced in the 1980’s. He said all the indications the city had were that the reservoir was not in great condition but not in terrible condition and within a matter of months was to be taken off line. (It is currently only used for irrigation purposes, not as part of the city’s potable water supply.) Before the 2008 water crisis, the Weber Reservoir was not the center of attention, Koskelin said. “We were deeply involved in constructing the water treatment plant. We started designing the plant in 2004 … That was taking up much of our attention.”[…]

“If the water treatment plant had been in eight months earlier than it was, and it was under construction, none of this could have happened,” Koskelin said…

Koskelin shared a copy of Liquid Engineering Corporation’s 1997 report with the Alamosa city council. The inspection listed the reservoir as clean, the roof in good condition and the walls showing “minor spalling” (chipping, flaking) and bowing outward. Koskelin said the bow occurred when the concrete was initially poured. The report noted that the corners of the wall surface were in poor condition with cracking, spalling and exposed aggregate but were still satisfactory. “That’s exterior damage,” Koskelin said. The report also marked the concrete slab/ring as satisfactory but also showing cracking, spalling and erosion or exposed aggregate. The 1997 report also noted “minor corrosion on roof support structures.” The report stated sand had built up on the west side from the inlet, and sediment was observed on the floor, but no leaking was observed in any part of the reservoir at that time.

More Alamosa coverage here and here.

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