24 Inches Above SHWT: A Bold New Era For Septic Design In New Hampshire
New Hampshire’s septic design landscape is undergoing a major transformation after the implementation of the NH seasonal high watertable rule for 2024. The new law is frequently referred to as the 24-inch SHWT Leach Field Rule NH and allows septic systems to be constructed with a reduced distance from the water table in the summer. […]
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