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Clean Hydrogen Works LA-1 LLC - Ascension Clean Energy Project

Nitrogenous Fertilizers, major discharger, Donaldsonville, Louisiana. NPDES permit LA0127739, in force until Oct 15, 2030. No reports in EPA's file for the last 12 months. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form A monthly (6 values), outfall 002 form A monthly (2 values), outfall IT01 form A monthly (2 values), outfall 001 form DA yearly, outfall 001 form PI yearly, outfall 001 form Q quarterly, and 6 more forms
Last report on file
None in EPA's file for the last 12 months; that may be EPA's gap, not the facility's

Limits in force (84)

ParameterStatisticLimitMonthsOutfall
pHinstantaneous minimumreport only (SU)all year001
pHinstantaneous maximumreport only (SU)all year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]monthly average≤ 2619 lb/dall year001
Nitrogen, ammonia total [as N]daily maximum≤ 5238 lb/dall year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
pH range excursions, > 60 minutesdaily maximum≤ 0 occur/moall year001
pH range excursions, monthly total accumdaily maximum≤ 446 minall year001
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48-hour minimumreport only (pass=0;fail=1)all year001
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulexmonthly average minimumreport only (pass=0;fail=1)all year001
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (pass=0;fail=1)all year001
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelasmonthly average minimumreport only (pass=0;fail=1)all year001
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48-hour minimumreport only (%)all year001
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulexmonthly average minimumreport only (%)all year001
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48-hour minimumreport only (%)all year001
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelasmonthly average minimumreport only (%)all year001
Coef Of Var Static Renewal 48Hr Acute D. pulexmaximumreport only (%)all year001
Coef Of Var Static Renewal 48Hr Acute Pimephales promelasmaximumreport only (%)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
pHinstantaneous minimumreport only (SU)all year003
pHinstantaneous maximumreport only (SU)all year003
Solids, total suspendeddaily maximumreport only (mg/L)all year003
Oil & Greasedaily maximumreport only (mg/L)all year003
Nitrogen, total [as N]monthly averagereport only (mg/L)all year003
Nitrogen, total [as N]daily maximumreport only (mg/L)all year003
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year003
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year003
Phosphorus, total [as P]monthly averagereport only (mg/L)all year003
Phosphorus, total [as P]daily maximumreport only (mg/L)all year003
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
pHinstantaneous minimumreport only (SU)all year004
pHinstantaneous maximumreport only (SU)all year004
Solids, total suspendeddaily maximumreport only (mg/L)all year004
Oil & Greasedaily maximumreport only (mg/L)all year004
Nitrogen, total [as N]monthly averagereport only (mg/L)all year004
Nitrogen, total [as N]daily maximumreport only (mg/L)all year004
Nitrogen, ammonia total [as N]monthly averagereport only (mg/L)all year004
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year004
Phosphorus, total [as P]monthly averagereport only (mg/L)all year004
Phosphorus, total [as P]daily maximumreport only (mg/L)all year004
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
pHinstantaneous minimumreport only (SU)all year05A
pHinstantaneous maximumreport only (SU)all year05A
Solids, total suspendeddaily maximumreport only (mg/L)all year05A
Solids, total suspendeddaily maximumreport only (mg/L)all year05A
Oil & Greasedaily maximumreport only (mg/L)all year05A
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year05A
Lead, total [as Pb]daily maximumreport only (ug/L)all year05A
Benzenedaily maximumreport only (ug/L)all year05A
BTEXdaily maximumreport only (ug/L)all year05A
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year05A
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year05A
pHinstantaneous minimumreport only (SU)all year05B
pHinstantaneous maximumreport only (SU)all year05B
Solids, total suspendeddaily maximumreport only (mg/L)all year05B
Solids, total suspendeddaily maximumreport only (mg/L)all year05B
Oil & Greasedaily maximumreport only (mg/L)all year05B
Carbon, tot organic [TOC]daily maximumreport only (mg/L)all year05B
Lead, total [as Pb]daily maximumreport only (ug/L)all year05B
Benzenedaily maximumreport only (ug/L)all year05B
BTEXdaily maximumreport only (ug/L)all year05B
Flow, in conduit or thru treatment plantmonthly averagereport only (gal/d)all year05B
Flow, in conduit or thru treatment plantdaily maximumreport only (gal/d)all year05B
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year101
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year101
Solids, total suspendedmonthly average≤ 30 mg/Lall year101
Solids, total suspendeddaily maximum≤ 45 mg/Lall year101
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year101
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year101
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year101
Coliform, fecal generaldaily maximum≤ 400 #/100mLall year101
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all yearIT01
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all yearIT01
Cooling Water Intake Velocitymonthly average≤ .5 ft/secall yearIT01
Cooling Water Intake Velocitydaily maximumreport only (ft/sec)all yearIT01

How strict are these limits?

Cited limits by parameter: Louisiana's rules and the federal ones.

Same industry: the 130 Chemicals and Allied Products permits in Louisiana.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/LA0127739 · MCP: https://passage-data.com/mcp