Properly designed septic systems satisfy the state’s antidegradation requirements for water quality, according to a new law in Pennsylvania. Pushed by homebuilders in response to a 2011 decision by the state’s Environmental Hearing Board, the new law removes a hurdle that slowed or prevented development in areas without public sewers, especially in high-quality or exceptional value watersheds.The Pennsylvania Department of Environmental Protection argued that its requirement for a 10-acre minimum for any lot developed with onsite sewage in high-quality or exceptional value watersheds was needed to protect water from nitrates. Opponents said the policy would have depleted property values and
