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SJE Rhombus holds September training session

DETROIT LAKES, Minnesota (September 11, 2018) – Twice a year, SJE Rhombus holds training sessions that let their customers get to know their products better. This year’s second training ran from September 11-12 at the company’s headquarters in Detroit Lakes, Minn. The training involved many sessions, ranging from presentations to hands-on workshops like panel assembly. […]

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Changes to Graded Stone Requirements for Prefabricated, Gravel-less Chambers

Effective July 18, 2018, the placement of graded stone beneath prefabricated, gravel-less chambers is no longer required or recommended for disposal field systems, including sand mounds and sand-lined trenches.  This change applies to chambers with an H-10 AASHTO load rating (16,000 lbs/axle).  Graded stone is still required beneath chambers having an H-20 AASHTO load rating

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