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Yes. Public water systems that have installed arsenic treatment should be aware that possible changes in their finished water may cause other water quality problems or even result in more arsenic release from the distribution system itself for a period of time. For example, arsenic control measures such as using new water sources or blending different sources of water may increase corrosion of residual deposits within the distribution system. In some cases, this increased corrosion may cause an increase in arsenic levels (from where it has co-precipitated with iron) in the distribution system or create simultaneous issues with other drinking water regulations. There are other FAQs in this database on how arsenic can go in and out of solution in association with iron. |
