{"permit":"TX0087971","name":"SOLVAY CHEMICALS INC","state":"TX","as_of":"2026-10-22","source":{"publisher":"U.S. EPA — ECHO / ICIS-NPDES national file","as_of":"2026-10-22","page":"/dmr/p/TX0087971"},"about":[{"label":"What it is","text":"Industrial Inorganic Chemicals (EPA's industry listing)"},{"label":"Where","text":"La Porte, Texas","href":"https://www.openstreetmap.org/?mlat=29.718433&mlon=-95.08606#map=14/29.718433/-95.08606"},{"label":"Last 12 months","text":"No values over a limit"},{"label":"Permit","text":"In force until May 21, 2030"}],"renewal_due":null,"renewal_check":null,"sector":{"state":"TX","sic":"28","permits":165,"list":"https://passage-data.com/api/v1/permits?state=TX&sic=28","page":"https://passage-data.com/dmr/s/TX/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":"001","parameter":"pH","parameter_code":"00400","statistic":"minimum","qualifier":">=","value":"6","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"STORMWATER - 001"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"maximum","qualifier":"<=","value":"9","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"STORMWATER - 001"},{"outfall":"001","parameter":"Oil & Grease","parameter_code":"00556","statistic":"daily maximum","qualifier":"<=","value":"15","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"STORMWATER - 001"},{"outfall":"001","parameter":"Carbon, tot organic [TOC]","parameter_code":"00680","statistic":"daily maximum","qualifier":"<=","value":"55","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"STORMWATER - 001"},{"outfall":"001","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"daily average","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":true,"months":"all","limit_set":"STORMWATER - 001"},{"outfall":"001","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":"STORMWATER - 001"},{"outfall":"002","parameter":"Temperature, water deg. fahrenheit","parameter_code":"00011","statistic":"daily maximum","qualifier":"<=","value":"110","unit":"deg F","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"monthly minimum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"daily average","qualifier":"<=","value":"71","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"daily maximum","qualifier":"<=","value":"189","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"pH","parameter_code":"00400","statistic":"minimum","qualifier":">=","value":"5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"pH","parameter_code":"00400","statistic":"maximum","qualifier":"<=","value":"11","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily average","qualifier":"<=","value":"290","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"daily maximum","qualifier":"<=","value":"644","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"Oil & Grease","parameter_code":"00556","statistic":"daily maximum","qualifier":"<=","value":"15","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"Carbon, tot organic [TOC]","parameter_code":"00680","statistic":"daily average","qualifier":"<=","value":"201","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"Carbon, tot organic [TOC]","parameter_code":"00680","statistic":"daily maximum","qualifier":"<=","value":"428","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"Sulfate, total [as SO4]","parameter_code":"00945","statistic":"daily average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"Sulfate, total [as SO4]","parameter_code":"00945","statistic":"daily maximum","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"Aluminum, total [as Al]","parameter_code":"01105","statistic":"daily average","qualifier":"<=","value":"2.03","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"Aluminum, total [as Al]","parameter_code":"01105","statistic":"daily maximum","qualifier":"<=","value":"4.31","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"daily average","qualifier":"<=","value":".434","unit":"MGD","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"Flow, in conduit or thru treatment plant","parameter_code":"50050","statistic":"daily maximum","qualifier":"<=","value":".5","unit":"MGD","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"pH range excursions, > 60 minutes","parameter_code":"82581","statistic":"monthly total","qualifier":"<=","value":"0","unit":"occur/mo","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"002","parameter":"pH range excursions, monthly total accum","parameter_code":"82582","statistic":"monthly total","qualifier":"<=","value":"446","unit":"min","report_only":false,"enforceable":true,"months":"all","limit_set":"PROCESS WASTEWATER - 002"},{"outfall":"TX2","parameter":"Whole effluent toxicity - retest #1","parameter_code":"22415","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"Whole effluent toxicity - retest #1","parameter_code":"22415","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"Whole effluent toxicity - retest #2","parameter_code":"22416","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"Whole effluent toxicity - retest #2","parameter_code":"22416","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"Whole Effluent Toxicity [WET] - M. beryllina","parameter_code":"51712","statistic":"7-day minimum","qualifier":">=","value":"8","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"Whole Effluent Toxicity [WET] - M. beryllina","parameter_code":"51712","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"Whole Effluent Toxicity [WET] - Americamysis bahia (formerly Mysidopsis bahia)","parameter_code":"51713","statistic":"7-day minimum","qualifier":">=","value":"8","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"Whole Effluent Toxicity [WET] - Americamysis bahia (formerly Mysidopsis bahia)","parameter_code":"51713","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)","parameter_code":"TLP3E","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)","parameter_code":"TLP3E","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina","parameter_code":"TLP6J","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia beryllina","parameter_code":"TLP6J","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)","parameter_code":"TOP3E","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)","parameter_code":"TOP3E","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina","parameter_code":"TOP6J","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"NOEC Lethal Static Renewal 7 Day Chronic Menidia beryllina","parameter_code":"TOP6J","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)","parameter_code":"TPP3E","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)","parameter_code":"TPP3E","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina","parameter_code":"TPP6J","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina","parameter_code":"TPP6J","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)","parameter_code":"TWP3E","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)","parameter_code":"TWP3E","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina","parameter_code":"TWP6J","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia beryllina","parameter_code":"TWP6J","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)","parameter_code":"TXP3E","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia)","parameter_code":"TXP3E","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"LOEC Lethal Survival Static Renewal 7 Day Chronic  Menidia beryllina","parameter_code":"TXP6J","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"LOEC Lethal Survival Static Renewal 7 Day Chronic  Menidia beryllina","parameter_code":"TXP6J","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)","parameter_code":"TYP3E","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia)","parameter_code":"TYP3E","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina","parameter_code":"TYP6J","statistic":"7-day minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TX2","parameter":"LOEC Sub-Lethal Growth Static Renewal 7 Day Chronic Menidia beryllina","parameter_code":"TYP6J","statistic":"monthly average minimum","qualifier":null,"value":null,"unit":"%","report_only":true,"enforceable":true,"months":"all","limit_set":"7-DAY CHRONIC MARINE - 002"},{"outfall":"TXA","parameter":"Whole effluent toxicity - retest #1","parameter_code":"22415","statistic":"single sample","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"24-HOUR ACUTE MARINE - 002"},{"outfall":"TXA","parameter":"Whole effluent toxicity - retest #2","parameter_code":"22416","statistic":"single sample","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"24-HOUR ACUTE MARINE - 002"},{"outfall":"TXA","parameter":"Whole Effluent Toxicity [WET] - M. beryllina","parameter_code":"51712","statistic":"single sample","qualifier":"<=","value":"100","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"24-HOUR ACUTE MARINE - 002"},{"outfall":"TXA","parameter":"Whole Effluent Toxicity [WET] - Americamysis bahia (formerly Mysidopsis bahia)","parameter_code":"51713","statistic":"single sample","qualifier":"<=","value":"100","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"24-HOUR ACUTE MARINE - 002"},{"outfall":"TXA","parameter":"LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia)","parameter_code":"TIE3E","statistic":"single sample","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"24-HOUR ACUTE MARINE - 002"},{"outfall":"TXA","parameter":"LC50 Pass/Fail Static 24Hr Acute Menidia beryllina","parameter_code":"TII6J","statistic":"single sample","qualifier":null,"value":null,"unit":"pass=0;fail=1","report_only":true,"enforceable":true,"months":"all","limit_set":"24-HOUR ACUTE MARINE - 002"}],"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":"TX","sic":"28"},"needs":{},"get":"https://passage-data.com/api/v1/permits?state=TX&sic=28","url":"https://passage-data.com/api/v1/permits?state=TX&sic=28","page":"https://passage-data.com/dmr/s/TX/28"},{"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":"TX0087971"},"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=TX0087971"},{"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":"TX0087971"},"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=TX0087971"}]}