{"permit":"IN0000329","name":"W.R. GRACE & CO. -CONN. GRACE DAVIDSON DIV","state":"IN","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/IN0000329"},"about":[{"label":"What it is","text":"Industrial Inorganic Chemicals (EPA's industry listing)"},{"label":"Where","text":"East Chicago, Indiana","href":"https://www.openstreetmap.org/?mlat=41.616667&mlon=-87.450833#map=14/41.616667/-87.450833"},{"label":"Last 12 months","text":"No values over a limit"},{"label":"Permit","text":"In force until Nov 30, 2026"}],"renewal_due":{"date":"2026-06-03","when":"Jun 3, 2026, overdue","urgent":true},"renewal_check":{"offered_because":"application_overdue","application_due":"2026-06-03","price":"free while piloted","order_page":"https://passage-data.com/dmr/p/IN0000329#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":"IN","sic":"28","permits":45,"list":"https://passage-data.com/api/v1/permits?state=IN&sic=28","page":"https://passage-data.com/dmr/s/IN/28"},"limits_from_version":null,"record":{"last_filed":"2026-08-31","over":0,"over_by":[],"window":["2025-10-01","2026-09-30"]},"over_limits":[],"limits":[{"outfall":"003","parameter":"pH","parameter_code":"00400","statistic":"daily minimum","qualifier":">=","value":"6","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS & STORMWATER"},{"outfall":"003","parameter":"pH","parameter_code":"00400","statistic":"daily maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS & STORMWATER"},{"outfall":"003","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"170","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS & STORMWATER"},{"outfall":"003","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":"<=","value":"254","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS & STORMWATER"},{"outfall":"003","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"600","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS & STORMWATER"},{"outfall":"003","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":"<=","value":"900","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS & STORMWATER"},{"outfall":"003","parameter":"Sulfate, total [as SO4]","parameter_code":"00945","statistic":"monthly average","qualifier":"<=","value":"11024","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS & STORMWATER"},{"outfall":"003","parameter":"Sulfate, total [as SO4]","parameter_code":"00945","statistic":"daily maximum","qualifier":"<=","value":"14698","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS & STORMWATER"},{"outfall":"003","parameter":"Sulfate, total [as SO4]","parameter_code":"00945","statistic":"monthly average","qualifier":"<=","value":"39000","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS & STORMWATER"},{"outfall":"003","parameter":"Sulfate, total [as SO4]","parameter_code":"00945","statistic":"daily maximum","qualifier":"<=","value":"52000","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS & STORMWATER"},{"outfall":"003","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"monthly average","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"PROCESS & STORMWATER"},{"outfall":"003","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"daily maximum","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"PROCESS & STORMWATER"},{"outfall":"003","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"monthly average","qualifier":"<=","value":".0078","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS & STORMWATER"},{"outfall":"003","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"daily maximum","qualifier":"<","value":".06","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS & STORMWATER"},{"outfall":"003","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"monthly average","qualifier":"<=","value":".03","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS & STORMWATER"},{"outfall":"003","parameter":"Chlorine, total residual","parameter_code":"50060","statistic":"daily maximum","qualifier":"<","value":".3","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS & STORMWATER"},{"outfall":"003","parameter":"Toxicity [acute], Ceriodaphnia dubia","parameter_code":"61425","statistic":"maximum","qualifier":"<=","value":"9.4","unit":"tox acute","report_only":false,"enforceable":true,"months":["NOV"],"limit_set":"ANNUAL BIOMONITORING"},{"outfall":"003","parameter":"Toxicity [acute], Ceriodaphnia dubia","parameter_code":"61425","statistic":"maximum","qualifier":"<=","value":"9.4","unit":"tox acute","report_only":false,"enforceable":true,"months":["DEC"],"limit_set":"ANNUAL BIOMONITORING - 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