{"query":{"parameter":"total nitrogen as n","place":"US-NE","medium":null,"statistic":null,"kind":null},"searched":{"places":["US-NE","US"],"parameter_keys":["name:azoto totale","name:total nitrogen","cas:7664-41-7","name:total inorganic nitrogen"],"names_matched":[["total nitrogen as n","name:azoto totale"],["total nitrogen as n","name:total nitrogen"],["ammonia total ammonia nitrogen nh3 n plus nh4 n as ug l n","cas:7664-41-7"],["total inorganic nitrogen as n","name:total inorganic nitrogen"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order","not_sent":{"rows":1744,"names":["Ammonia (as N)","Ammonia","Ammonia-N","Ammonia as N","Total ammonia nitrogen (TAN)","Ammonia as Nitrogen"],"says":"1744 rows share a parameter key with a longer name holding \"total nitrogen as n\" but are printed under names without these words (that key is wider than the name), or keyed to a CAS number \"total nitrogen as n\" does not name (another substance, whatever words its name holds): not sent. Ask for one by its name or CAS number."}},"total":2,"offset":0,"returned":2,"next_offset":null,"rows":[{"id":"0fc4ff2054f716e2","parameter":"Total nitrogen","value":"1000","value_num":1000,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total nitrogen","place":["US-NE"],"conditions":["receiving_water is freshwater","lakes or impounded waters coded E in Chapter 6: Eastern lakes and impounded waters (Big Blue, Little Blue, Elkhorn, Lower Platte, Missouri Tributaries and Nemaha River Basins)"],"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":"unchanged"},"section":"Neb. Admin. Code Title 117 Chapter 4, 003.05","page":59,"quote":"Impounded Waters: E 50 1000 10"}},{"id":"069b3983142bb290","parameter":"Total nitrogen","value":"800","value_num":800,"unit":"µg/L","direction":"max","kind":"guideline","medium":"surface_water","level":"regional","parameter_key":"name:total nitrogen","place":["US-NE"],"conditions":["receiving_water is freshwater","lakes or impounded waters coded W in Chapter 6: Western lakes and impounded waters (Loup, Middle Platte, Niobrara, North Platte, Republican, South Platte and White River-Hat Creek Basins)"],"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":"unchanged"},"section":"Neb. Admin. Code Title 117 Chapter 4, 003.05","page":59,"quote":"Impounded Waters: W 40 800 8"}}],"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: \"total nitrogen as n\", 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"}]}