" The analysis found that septic systems are somewhat effective at removing chemicals such as acetaminophen, caffeine, and alkyphenols, a common group of ingredients used in cleaning products. But some chemicals remain largely untreated, including TCEP, a carcinogenic flame retardant, an anti-epilepsy drug called carbamazepine, and the antibiotic sulfamethoxazole. " http://flowforwater.org/its-septic-smart-week/
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