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Town of Homer- Wastewater Treatment Plant

Sewage treatment plant, major discharger, Homer, Louisiana. NPDES permit LA0038521 expired Oct 31, 2025; its limits still apply. Last 12 months: over a limit 33 times (last September 2026), 9 required values missing, 10 of 40 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (17 values), form CE monthly (11 values), form PI monthly (11 values), form Q quarterly (26 values)
Last report on file
September 2026
Oct 2024 – Sep 2025
34 values over a limit, 26 required values missing, 12 of 40 reports late

Last 12 months (Oct 1, 2025 – Sep 30, 2026)

All 33 values over a limit
Period endingParameterReportedLimitOver by
October 2025Whole Effluent Toxicity [WET] - P. promelas, 7-day minimum0 %≥ 95 %100%
October 2025Whole Effluent Toxicity [WET] - P. promelas, monthly average minimum0 %≥ 95 %100%
December 2025Chlorine, total residual, daily maximum.94 mg/L< .033 mg/L2748%
December 2025Cyanide, total [as CN], monthly average.061 lb/d≤ .044 lb/d39%
December 2025Whole Effluent Toxicity [WET] - P. promelas, 7-day minimum0 %≥ 95 %100%
December 2025Whole Effluent Toxicity [WET] - P. promelas, monthly average minimum0 %≥ 95 %100%
February 2026Nitrogen, ammonia total [as N], monthly average7.63 mg/L≤ 4 mg/L91%
March 2026Mercury, total [as Hg], daily maximum< .00085 lb/d≤ .0007 lb/d21%
March 2026Mercury, total [as Hg], monthly average< .00085 lb/d≤ .0003 lb/d183%
March 2026Nitrogen, ammonia total [as N], monthly average5.36 mg/L≤ 4 mg/L34%
April 2026Nitrogen, ammonia total [as N], monthly average10.7 mg/L≤ 4 mg/L168%
May 2026Nitrogen, ammonia total [as N], monthly average19.6 mg/L≤ 4 mg/L390%
May 2026Nitrogen, ammonia total [as N], monthly average62.5 lb/d≤ 45 lb/d39%
May 2026Nitrogen, ammonia total [as N], weekly average16 mg/L≤ 8 mg/L100%
May 2026Solids, total suspended, monthly average30 mg/L≤ 15 mg/L100%
May 2026Solids, total suspended, weekly average31.8 mg/L≤ 23 mg/L38%
June 2026Coliform, fecal general, weekly geometric mean576 #/100mL≤ 400 #/100mL44%
June 2026Copper, total [as Cu], monthly average.091 lb/d≤ .068 lb/d34%
June 2026Nitrogen, ammonia total [as N], monthly average15.8 mg/L≤ 4 mg/L295%
June 2026Nitrogen, ammonia total [as N], weekly average15.7 mg/L≤ 8 mg/L96%
July 2026Nitrogen, ammonia total [as N], monthly average13.9 mg/L≤ 4 mg/L248%
July 2026Nitrogen, ammonia total [as N], monthly average51 lb/d≤ 45 lb/d13%
July 2026Nitrogen, ammonia total [as N], weekly average13.9 mg/L≤ 8 mg/L74%
August 2026Nitrogen, ammonia total [as N], monthly average9.88 mg/L≤ 4 mg/L147%
August 2026Nitrogen, ammonia total [as N], weekly average9.82 mg/L≤ 8 mg/L23%
September 2026Copper, total [as Cu], daily maximum.422 lb/d≤ .161 lb/d162%
September 2026Copper, total [as Cu], monthly average.422 lb/d≤ .068 lb/d521%
September 2026Cyanide, total [as CN], daily maximum.57 lb/d≤ .104 lb/d448%
September 2026Cyanide, total [as CN], monthly average.57 lb/d≤ .044 lb/d1195%
September 2026Mercury, total [as Hg], monthly average< .00049 lb/d≤ .0003 lb/d63%
September 2026Nitrogen, ammonia total [as N], monthly average7.56 mg/L≤ 4 mg/L89%
September 2026Whole Effluent Toxicity [WET] - P. promelas, 7-day minimum72 %≥ 95 %24%
September 2026Whole Effluent Toxicity [WET] - P. promelas, monthly average minimum72 %≥ 95 %24%

Limits in force (65)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]monthly average minimum≥ 5 mg/Lall year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 8.5 SUall year
Solids, total suspendedmonthly average≤ 15 mg/Lall year
Solids, total suspendedweekly average≤ 23 mg/Lall year
Solids, total suspendedmonthly average≤ 168 lb/dall year
Nitrogen, total [as N]monthly averagereport only (mg/L)all year
Nitrogen, total [as N]weekly averagereport only (mg/L)all year
Nitrogen, total [as N]monthly averagereport only (lb/d)all year
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/Lall year
Nitrogen, ammonia total [as N]weekly average≤ 8 mg/Lall year
Nitrogen, ammonia total [as N]monthly average≤ 45 lb/dall year
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]weekly averagereport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (lb/d)all year
Cyanide, total [as CN]monthly averagereport only (mg/L)all year
Cyanide, total [as CN]daily maximumreport only (mg/L)all year
Cyanide, total [as CN]monthly average≤ .044 lb/dall year
Cyanide, total [as CN]daily maximum≤ .104 lb/dall year
Copper, total [as Cu]monthly averagereport only (mg/L)all year
Copper, total [as Cu]daily maximumreport only (mg/L)all year
Copper, total [as Cu]monthly average≤ .068 lb/dall year
Copper, total [as Cu]daily maximum≤ .161 lb/dall year
Zinc, total [as Zn]monthly averagereport only (mg/L)all year
Zinc, total [as Zn]daily maximumreport only (mg/L)all year
Zinc, total [as Zn]monthly average≤ .58 lb/dall year
Zinc, total [as Zn]daily maximum≤ 1.378 lb/dall year
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all year
Chlorine, total residualdaily maximum< .033 mg/Lall year
Whole Effluent Toxicity [WET] - C. dubia7-day minimum≥ 95 %all year
Whole Effluent Toxicity [WET] - C. dubiamonthly average minimum≥ 95 %all year
Whole Effluent Toxicity [WET] - P. promelas7-day minimum≥ 95 %all year
Whole Effluent Toxicity [WET] - P. promelasmonthly average minimum≥ 95 %all year
Solids, total dissolvedmonthly averagereport only (mg/L)all year
Solids, total dissolvedweekly averagereport only (mg/L)all year
Solids, total dissolvedmonthly average≤ 3313 lb/dall year
Solids, total dissolvedweekly average≤ 7885 lb/dall year
Mercury, total [as Hg]monthly averagereport only (mg/L)all year
Mercury, total [as Hg]daily maximumreport only (mg/L)all year
Mercury, total [as Hg]monthly average≤ .0003 lb/dall year
Mercury, total [as Hg]daily maximum≤ .0007 lb/dall year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 112 lb/dall year
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (pass=0;fail=1)all year
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (pass=0;fail=1)all year
Pass/Fail Static Renewal 7Day Chronic Pimephales promelas7-day minimumreport only (pass=0;fail=1)all year
Pass/Fail Static Renewal 7Day Chronic Pimephales promelasmonthly average minimumreport only (pass=0;fail=1)all year
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (pass=0;fail=1)all year
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (pass=0;fail=1)all year
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (pass=0;fail=1)all year
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (pass=0;fail=1)all year
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all year
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all year
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all year
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all year
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all year
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all year
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all year
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all year
Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubiamaximumreport only (%)all year
Coef Of Var Static Renewal 7Day Chronic Pimephales promelasmaximumreport only (%)all year

How strict are these limits?

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/LA0038521 · MCP: https://passage-data.com/mcp