{"query":{"parameter":"combined radium 226 and radium 228","place":"US-NE","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-NE","US"],"parameter_keys":["name:combined radium-226 and radium-228"],"names_matched":[["combined radium 226 and radium 228","name:combined radium-226 and radium-228"]],"match":"exact","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":2,"offset":0,"returned":2,"next_offset":null,"rows":[{"id":"a3e7a819764ff324","parameter":"Combined radium-226 and radium-228","value":"5 pCi/l","value_num":5,"unit":"pCi/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:combined radium-226 and radium-228","place":["US-NE"],"conditions":["receiving_water is freshwater","surface waters which serve as a public drinking water supply (004.01; Chapters 5 and 6)"],"cite":{"instrument":"us_ne_wqs","title":"Nebraska Title 117, Surface Water Quality Standards, Chapter 4: aquatic life (general, toxic substances, coldwater and warmwater classes), lake nutrients, public drinking water and agricultural criteria","issuer":"State of Nebraska, Environmental Quality Council (Department of Environment and Energy)","edition":"Neb. Admin. Code Title 117, effective August 2, 2023 (Chapter 4 pages dated June 24, 2019), as US EPA posts it in effect for CWA purposes (cover September 5, 2023: the chronic mercury criterion in effect is 0.051 µg/L, EPA having deferred action on 0.77 µg/L; 003.05's chlorophyll a sentence disapproved; 004.01B's background sentence not approved; selenium and cadmium remain subject to ESA consultation)","source_url":"https://www.epa.gov/system/files/documents/2023-09/newqs-title117.pdf","source_sha256":"647f1d39531b7b2024e90f45cf69b0da17856324172e984c1e3da9bb6adb3036","fetched_at":"2026-10-14","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"Neb. Admin. Code Title 117 Chapter 4, 004.01B","page":63,"quote":"Combined radium-226 and 5 pCi/l ----- radium-228 c"}},{"id":"d8ec670091851ba3","parameter":"Combined radium-226 and radium-228","value":"Zero","value_num":0,"direction":"max","kind":"guideline","medium":"drinking_water","level":"national","parameter_key":"name:combined radium-226 and radium-228","place":["US"],"conditions":["40 CFR 141.2: Maximum contaminant level goals are nonenforceable health goals."],"cite":{"instrument":"us_npdwr","title":"40 CFR Part 141 — National Primary Drinking Water Regulations (eCFR, as of 2026-08-01)","issuer":"U.S. Environmental Protection Agency (EPA)","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=141","source_sha256":"bd534eb2d8af38e141e1cd6236134a638298fbf14791b30279eeb47d815d7767","fetched_at":"2026-08-29","source_status":{"checked":"2026-10-15","status":"not verified"},"section":"141.55","page":null,"quote":null,"column":"mclg"}}],"next":[{"tool":"check_values","says":"Has your user measured this? check_values sets each of their results beside every row held here, with a verdict and the row's cite.","arguments":{"place":"US-NE"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"combined radium 226 and radium 228\", value, unit}, ...], any other parameters too."},"post":"/api/v1/check"},{"tool":"read_certificate","says":"Has your user a laboratory certificate? read_certificate reads every row it prints, each with its page, and checks them against these limits.","arguments":{"place":"US-NE"},"needs":{"content_base64":"The laboratory's certificate (PDF) or its XLSX, XLS or CSV export, as base64; or file_url, a public https address of it."},"post":"/api/v1/certificate"}]}