States, Utilities At Odds Over Cr6 Listing On Drinking Water Monitoring List

摘要

States and water utilities are at odds over whether EPA should include hexavalent chromium (Cr6) on the agency's forthcoming update to its unregulated contaminants monitoring rule (UCMR), with states joining environmentalists in calling for the chemical's listing while water utilities say monitoring should only be required if the agency can establish a human health risk.The coalescence between state regulators and environmentalists may make it more difficult for utilities to argue against listing Cr6 — a ubiquitous valence of chromium used in various industrial applications and highlighted in the 2000 feature film Erin Brockovich — on the UMCR, given EPA Administrator Lisa Jackson's recent voluntary initiatives to monitor for the metal in drinking water.