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What are the design requirements for entry hatches on wet wells, clearwells, tanks and reservoirs?

April 26, 2017clearwells design hatches requirements reservoirs tanks Wells wet

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What are the design requirements for entry hatches on wet wells, clearwells, tanks and reservoirs?

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• The requirements are specified in the Arizona Department of Environmental Quality’s (ADEQ) Engineering Bulletin No. 10, “Guidelines for the Construction of Water Systems”, Chapter 6, Section E.8. Entry hatches shall be constructed with seals to prevent the entry of unsafe water, birds and insects into the containment vessel. Typical entry hatch designs include frames with integral curbs and frame overlapping covers with rubber or plastic seals.