{"permit":"AZ0020338","name":"City Of Tolleson","state":"AZ","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/AZ0020338"},"about":[{"label":"What it is","text":"Sewage treatment plant · rated a major discharger by EPA"},{"label":"Where","text":"Tolleson, Arizona","href":"https://www.openstreetmap.org/?mlat=33.43023&mlon=-112.26243#map=14/33.43023/-112.26243"},{"label":"Last 12 months","text":"Over a limit 4 times, last in April 2026 (TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum); E. coli, colony forming units [CFU]; Nitrogen, ammonia total [as N]). 1 of 24 reports filed late"},{"label":"Permit","text":"In force until Feb 3, 2031"}],"renewal_due":null,"renewal_check":null,"sector":null,"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":4,"over_by":[["TU Static 4 Day Chronic Raphidocelis subcapitata (formerly Selenastrum capricornutum)",2],["E. coli, colony forming units [CFU]",1],["Nitrogen, ammonia total [as N]",1]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"Nitrogen, ammonia total [as N]","times":1,"find_limits":{"parameter":"ammonia","place":"US-AZ","medium":"surface_water"},"get":"https://passage-data.com/api/v1/limits?parameter=ammonia&place=US-AZ&medium=surface_water"}],"limits":[{"outfall":"001","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"monthly average","qualifier":null,"value":null,"unit":"deg C","report_only":true,"enforceable":true,"months":"all","limit_set":"CITY OF TOLLESON - WWTP - Outfall 001"},{"outfall":"001","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"daily maximum","qualifier":null,"value":null,"unit":"deg C","report_only":true,"enforceable":true,"months":"all","limit_set":"CITY OF TOLLESON - WWTP - Outfall 001"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. 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