{"query":{"parameter":"parathion","place":"US-RI","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-RI","US"],"parameter_keys":["cas:56-38-2","cas:298-00-0","name:parathion and methyl parathion"],"names_matched":[["parathion","cas:56-38-2"],["methyl parathion","cas:298-00-0"],["parathion and methyl parathion","name:parathion and methyl parathion"],["parathion methyl","cas:298-00-0"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":10,"offset":0,"returned":10,"next_offset":null,"rows":[{"id":"9159cb0c03457c9a","parameter":"Parathion","value":"0.065","value_num":0.065,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"national","parameter_key":"cas:56-38-2","place":["US"],"conditions":["EPA's recommendation under Clean Water Act § 304(a): 'State and Tribal governments may use these criteria or use them as guidance in developing their own' — it binds a water once the state adopts it for the water's designated use","receiving_water is freshwater","Freshwater CMC (acute): criterion maximum concentration, acute"],"cite":{"instrument":"us_nrwqc_aquatic","title":"EPA National Recommended Water Quality Criteria — Aquatic Life Criteria Table (freshwater and saltwater CMC/CCC)","issuer":"U.S. Environmental Protection Agency","edition":"EPA web table, last updated on June 9, 2026 (fetched 2026-10-09); 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