Recommended for targeted testing for hexavalent chromium in drinking water. Hexavalent chromium–also called chromium-6 or CrVI–is a form of elemental chromium in the +6 oxidation state. Trivalent chromium (CrIII) and hexavalent chromium together compose what is normally called "total chromium". Chromium may convert between the trivalent and hexavalent states in both water and the human body depending on the environmental conditions. While trivalent chromium is an essential nutrient, hexavalent chromium is a potent human carcinogen that was cast into the spotlight by Erin Brockovich. Chromium occurs in both natural deposits, as well as in manufacturing processes such as electroplating and pigment factories. It can enter groundwater through erosion, mining waste, and industrial waste. While hexavalent chromium is a known cancer-causing agent, there is no federal or state Maximum Contaminant Level (MCL) specific to the hexavalent chromium. Instead, the national drinking water standard is set for “total chromium" 100 parts per billion (PPB). However, the California Office of Environmental Health Hazard Assessment recommended a public health goal (PHG) of 0.02 PPB for hexavalent chromium in drinking water. This Tap Score water test package provides all required materials to properly collect and submit a sample for certified laboratory testing. Reported results will include detailed, quantified analysis of hexavalent chromium by EPA 218.6 (or equivalent). Hexavalent Chromium Water Test Is this the right test for you? What our scientists say: “ Chromium convert between the trivalent and hexavalent states in both water and the human body depending on the environmental conditions. While trivalent chromium is an essential nutrient, hexavalent chromium is a potent human carcinogen. " This is the right test if you: Have confirmed prior total chromium results. Located in an area with known chromium concerns or nearby industrial contamination. How it works 1. Collect Sample We ship you everything you need to test your drinking water, including a guide on how to collect your sample. 2. Ship to Lab Send your sample back to us for rigorous, certified, independent testing. The shipping’s on us! 3. Get Report After our labs analyze your sample, we’ll send you a full report on what's in your water and what to do next. Your custom Tap Score awaits. After our certified labs receive and test your water sample, we will email your custom Tap Score Report, a simple digital tool that helps you understand exactly what’s in your water and what you can do about it. LEARN MORE
