{"permit":"WA0031283","name":"Chemtrade Sulex Inc","state":"WA","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/WA0031283"},"about":[{"label":"What it is","text":"Industrial Inorganic Chemicals (EPA's industry listing)"},{"label":"Where","text":"Mount Vernon, Washington","href":"https://www.openstreetmap.org/?mlat=48.4550018&mlon=-122.441116#map=14/48.4550018/-122.441116"},{"label":"Last 12 months","text":"Over a limit once, last in December 2025 (Solids, total suspended)"},{"label":"Permit","text":"Expired Jan 31, 2026; its terms still apply until a new permit is issued"}],"renewal_due":null,"renewal_check":{"offered_because":"permit_expired","application_due":"2025-08-04","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/WA0031283#renewal","says":"Each limit a renewal could tighten or add, from the state's water-quality standards and the federal rules for this kind of discharge, each cited to its rule, beside EPA's 12-month record; a rule we do not hold is named, never guessed. A person orders it on the permit's page with their email; it is sent by email within 5 business days."},"sector":{"state":"WA","sic":"28","permits":7,"list":"https://passage-data.com/api/v1/permits?state=WA&sic=28","page":"https://passage-data.com/dmr/s/WA/28"},"limits_from_version":null,"record":{"last_filed":"2026-01-31","over":1,"over_by":[["Solids, total suspended",1]],"window":["2025-10-01","2026-09-30"]},"over_limits":[{"parameter":"Solids, total suspended","times":1,"find_limits":{"parameter":"total suspended solids","place":"US-WA","medium":"water_discharge"},"get":"https://passage-data.com/api/v1/limits?parameter=total+suspended+solids&place=US-WA&medium=water_discharge"}],"limits":[{"outfall":"MP1","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"maximum","qualifier":null,"value":null,"unit":"deg C","report_only":true,"enforceable":false,"months":["JUN","JUL","AUG","SEP"],"limit_set":"DMR (Monthly)"},{"outfall":"MP1","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"daily minimum","qualifier":">=","value":"8","unit":"mg/L","report_only":false,"enforceable":true,"months":["JUN","JUL","AUG","SEP"],"limit_set":"DMR (Monthly)"},{"outfall":"MP1","parameter":"pH","parameter_code":"00400","statistic":"daily minimum","qualifier":">=","value":"6.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"MP1","parameter":"pH","parameter_code":"00400","statistic":"daily maximum","qualifier":"<=","value":"8.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"MP1","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"average","qualifier":"<=","value":"30","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"MP1","parameter":"Sulfide, total [as S]","parameter_code":"00745","statistic":"daily maximum","qualifier":"<=","value":".2","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"MP1","parameter":"Sulfate, total [as SO4]","parameter_code":"00945","statistic":"maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":false,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"MP1","parameter":"Flow","parameter_code":"74076","statistic":"maximum","qualifier":null,"value":null,"unit":"gal/d","report_only":true,"enforceable":false,"months":"all","limit_set":"DMR (Monthly)"}],"next":[{"tool":"list_permits","says":"Screening this industry? list_permits lists every permit of it in this state in one call, each with its page and its get_permit address; `get` is the address to fetch.","arguments":{"state":"WA","sic":"28"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=WA&sic=28","url":"https://passage-data.com/api/v1/permits?state=WA&sic=28","page":"https://passage-data.com/dmr/s/WA/28"},{"tool":"find_limits","says":"What do the rules say about what it went over on? find_limits gives the cited state and federal limits for it, each with its rule; `get` is the address to fetch, and `over_limits` holds one for each parameter.","arguments":{"parameter":"total suspended solids","place":"US-WA","medium":"water_discharge"},"needs":{},"get":"https://passage-data.com/api/v1/limits?parameter=total+suspended+solids&place=US-WA&medium=water_discharge","url":"https://passage-data.com/api/v1/limits?parameter=total+suspended+solids&place=US-WA&medium=water_discharge","page":"https://passage-data.com/limits/US-WA/total-suspended-solids"},{"tool":"check_dmr","says":"Before your user files this permit's DMR: check_dmr sets each value beside the permit's limit for that period, with EPA's violation rule's verdict.","arguments":{"permit":"WA0031283"},"needs":{"period_end":"The reporting period: its month (2026-09).","values":"The period's values as your user will file them: [{outfall, parameter, statistic, value, unit}, ...]."},"post":"/api/v1/dmr/check","url":"https://passage-data.com/api/v1/dmr/check","page":"https://passage-data.com/dmr/?permit=WA0031283"},{"tool":"fill_dmr","says":"Has your user the plant's raw daily results? fill_dmr computes the period's DMR values from them, each with the rows it came from.","arguments":{"permit":"WA0031283"},"needs":{"period_end":"The reporting period: its month (2026-09).","rows":"The plant's results: [{date, parameter, value, unit, point}, ...]; or `table`, the lab's or plant's export as text."},"post":"/api/v1/dmr/fill","url":"https://passage-data.com/api/v1/dmr/fill","page":"https://passage-data.com/dmr/?permit=WA0031283"}]}