City Engineer John Herdigan introduced the ordinance revisions designed to address three deficiencies identified in a recent state audit. The first proposed change pertains to the storage of salt and deicing chemicals, focusing on ensuring these materials are kept on paved surfaces to prevent contamination of the storm sewer system and ultimately the Mississippi River. This regulation primarily targets public works, but it would also apply to any industries storing such materials in Newport.

Another amendment involves the management of stormwater infiltration. Given Newport’s areas of high bedrock, promoting infiltration can lead directly to groundwater contamination. The proposed ordinance language specifies areas unsuitable for infiltration, providing clear guidelines for developers to ensure stormwater is managed without adverse environmental impacts.

The third revision addresses off-site stormwater treatment options. In cases where on-site management is unfeasible, developers could contribute to larger-scale projects elsewhere in Newport. This “cash in lieu” option allows the city to fund broader stormwater management initiatives, such as installing grit chambers to treat runoff before it reaches the river. These structural best management practices (BMPs) are part of Newport’s ongoing efforts to improve its stormwater infrastructure.