CHLORIDE REDUCTION MODEL ORDINANCE LANGUAGE

Document
Description
Chloride is easily transmitted into lakes, streams and groundwater, threatening drinking water supplies, as well as the health of freshwater fish and other aquatic life. This document discusses chloride-based deicers, specifically sodium chloride (NaCl), magnesium chloride (MgCl2), and calcium chloride (CaCl2). For purposes of discussion, these deicers are sometimes generally referred to as 'salt'. Deicers can enter into the environment during storage, transport, and application. It takes only one teaspoon of salt to permanently pollute five gallons of water. Once in the water, there is no easy way to remove the chloride. Model ordinance language contained in this document serves as guidance for municipal officials who want direction in regulating the use of deicers to protect water quality, animals, human health and infrastructure. Model ordinance language has been adapted from existing code from mid-western localities and Minnesota Pollution Control Agency (MPCA) Smart Salting and deicer management guidance. Local governments may want to institute regulatory options voluntarily or as part of their MS4 program.
Date Issued
2019-07-18
Number of Pages
8
Decade
Associated Organization
Publisher
Minnesota Pollution Control Agency (St. Paul, Minnesota)
Rights Holder
Minnesota Pollution Control Agency
Rights Management
Public Domain