{"permit":"WA0037737","name":"Department of Corrections","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/WA0037737"},"about":[{"label":"What it is","text":"Sewage treatment plant"},{"label":"Where","text":"Littlerock, Washington","href":"https://www.openstreetmap.org/?mlat=46.8835983&mlon=-123.139#map=14/46.8835983/-123.139"},{"label":"Last 12 months","text":"No values over a limit. 97 required values not reported. 6 of 56 reports filed late"},{"label":"Permit","text":"In force until May 31, 2029"}],"renewal_due":null,"renewal_check":null,"sector":null,"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":"Oxygen, dissolved [DO]","parameter_code":"00300","statistic":"daily minimum","qualifier":">=","value":"9.5","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"monthly average","qualifier":"<=","value":"20","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"weekly average","qualifier":"<=","value":"45","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"monthly average","qualifier":"<=","value":"11.2","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"weekly average","qualifier":"<=","value":"25.1","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"maximum","qualifier":"<=","value":"8.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"pH","parameter_code":"00400","statistic":"minimum","qualifier":">=","value":"6.5","unit":"SU","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"30","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"weekly average","qualifier":"<=","value":"45","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"16.8","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"weekly average","qualifier":"<=","value":"25.1","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":false,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"Nitrogen, ammonia total [as N]","parameter_code":"00610","statistic":"maximum","qualifier":"<=","value":"1.56","unit":"mg/L","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"BOD, percent removal [total]","parameter_code":"50076","statistic":"minimum","qualifier":">=","value":"85","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"E. coli","parameter_code":"51040","statistic":"single reading","qualifier":null,"value":null,"unit":"#/100mL","report_only":true,"enforceable":false,"months":"all","limit_set":"Annual DMR"},{"outfall":"001","parameter":"Coliform, fecal general","parameter_code":"74055","statistic":"monthly geometric mean","qualifier":"<=","value":"100","unit":"#/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"Coliform, fecal general","parameter_code":"74055","statistic":"weekly geometric mean","qualifier":"<=","value":"200","unit":"#/100mL","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"Flow","parameter_code":"74076","statistic":"maximum","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":false,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"Flow","parameter_code":"74076","statistic":"monthly average","qualifier":null,"value":null,"unit":"MGD","report_only":true,"enforceable":false,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001","parameter":"Solids, suspended percent removal","parameter_code":"81011","statistic":"minimum","qualifier":">=","value":"85","unit":"%","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001D","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"maximum","qualifier":null,"value":null,"unit":"deg C","report_only":true,"enforceable":false,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001D","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"monthly average","qualifier":null,"value":null,"unit":"deg C","report_only":true,"enforceable":false,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001U","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"maximum","qualifier":null,"value":null,"unit":"deg C","report_only":true,"enforceable":false,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"001U","parameter":"Temperature, water deg. centigrade","parameter_code":"00010","statistic":"monthly average","qualifier":null,"value":null,"unit":"deg C","report_only":true,"enforceable":false,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"002","parameter":"Coliform, fecal general","parameter_code":"74055","statistic":"monthly average","qualifier":null,"value":null,"unit":"#/100mL","report_only":true,"enforceable":false,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"INFL","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":false,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"INFL","parameter":"BOD, 5-day, 20 deg. C","parameter_code":"00310","statistic":"monthly average","qualifier":"<=","value":"150","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"INFL","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":null,"value":null,"unit":"mg/L","report_only":true,"enforceable":false,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"INFL","parameter":"Solids, total suspended","parameter_code":"00530","statistic":"monthly average","qualifier":"<=","value":"150","unit":"lb/d","report_only":false,"enforceable":true,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"INFL","parameter":"Flow","parameter_code":"74076","statistic":"maximum","qualifier":"<=","value":".138","unit":"MGD","report_only":false,"enforceable":false,"months":"all","limit_set":"DMR (Monthly)"},{"outfall":"INFL","parameter":"Flow","parameter_code":"74076","statistic":"monthly average","qualifier":"<=","value":".067","unit":"MGD","report_only":false,"enforceable":false,"months":"all","limit_set":"DMR (Monthly)"}],"next":[{"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":"WA0037737"},"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=WA0037737"},{"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":"WA0037737"},"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=WA0037737"}]}