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City of Tallulah- Wastewater Treatment Plant

Sewage treatment plant, major discharger, Tallulah, Louisiana. NPDES permit LA0086576 expired Sep 13, 2025; its limits still apply. Last 12 months: over a limit 122 times (last August 2026), 224 required values missing, 35 of 47 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (17 values), outfall 001 form CE monthly (11 values), outfall 001 form PI monthly (11 values), outfall 001 form Q quarterly (15 values), outfall 002 form A monthly (17 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
96 values over a limit, 1 required value missing, 50 of 52 reports late

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

All 122 values over a limit
Period endingOutfallParameterReportedLimitOver by
October 2025001BOD, carbonaceous [5 day, 20 C], monthly average17.79 mg/L≤ 10 mg/L78%
October 2025001BOD, carbonaceous [5 day, 20 C], weekly average19.55 mg/L≤ 15 mg/L30%
October 2025001Nitrogen, ammonia total [as N], monthly average12.02 mg/L≤ 2 mg/L501%
October 2025001Nitrogen, ammonia total [as N], monthly average54.01 lb/d≤ 25 lb/d116%
October 2025001Nitrogen, ammonia total [as N], weekly average12.35 mg/L≤ 4 mg/L209%
October 2025001Solids, total suspended, monthly average25.26 mg/L≤ 15 mg/L68%
October 2025001Solids, total suspended, weekly average29.5 mg/L≤ 23 mg/L28%
October 2025001Whole Effluent Toxicity [WET] - C. dubia, 7-day minimum54 %≥ 96 %44%
October 2025001Whole Effluent Toxicity [WET] - C. dubia, monthly average minimum54 %≥ 96 %44%
November 2025001BOD, carbonaceous [5 day, 20 C], monthly average13.04 mg/L≤ 10 mg/L30%
November 2025001BOD, carbonaceous [5 day, 20 C], weekly average16.78 mg/L≤ 15 mg/L12%
November 2025001Nitrogen, ammonia total [as N], monthly average5.13 mg/L≤ 2 mg/L157%
November 2025001Nitrogen, ammonia total [as N], weekly average11.24 mg/L≤ 4 mg/L181%
November 2025001Solids, total suspended, monthly average25.47 mg/L≤ 15 mg/L70%
November 2025001Solids, total suspended, weekly average39.09 mg/L≤ 23 mg/L70%
December 2025001Chlorine, total residual, instantaneous maximum.05 mg/L≤ .033 mg/L52%
December 2025001Nitrogen, ammonia total [as N], monthly average2.49 mg/L≤ 2 mg/L25%
December 2025001Nitrogen, ammonia total [as N], weekly average4.16 mg/L≤ 4 mg/L4%
December 2025001Oxygen, dissolved [DO], monthly average minimum5.46 mg/L≥ 6 mg/L9%
December 2025001Solids, total suspended, monthly average18.54 mg/L≤ 15 mg/L24%
December 2025001Solids, total suspended, weekly average27.61 mg/L≤ 23 mg/L20%
January 2026001BOD, carbonaceous [5 day, 20 C], monthly average10.31 mg/L≤ 10 mg/L3%
January 2026001BOD, carbonaceous [5 day, 20 C], monthly average10.31 mg/L≤ 10 mg/L3%
January 2026001Chlorine, total residual, instantaneous maximum.06 mg/L≤ .033 mg/L82%
January 2026001Chlorine, total residual, instantaneous maximum.06 mg/L≤ .033 mg/L82%
January 2026001Solids, total suspended, monthly average263.86 lb/d≤ 188 lb/d40%
January 2026001Solids, total suspended, monthly average263.86 lb/d≤ 188 lb/d40%
January 2026001Solids, total suspended, monthly average35.67 mg/L≤ 15 mg/L138%
January 2026001Solids, total suspended, monthly average35.67 mg/L≤ 15 mg/L138%
January 2026001Solids, total suspended, weekly average48.03 mg/L≤ 23 mg/L109%
January 2026001Solids, total suspended, weekly average48.03 mg/L≤ 23 mg/L109%
February 2026001BOD, carbonaceous [5 day, 20 C], monthly average14.61 mg/L≤ 10 mg/L46%
February 2026001BOD, carbonaceous [5 day, 20 C], monthly average151.49 lb/d≤ 125 lb/d21%
February 2026001BOD, carbonaceous [5 day, 20 C], weekly average19.65 mg/L≤ 15 mg/L31%
February 2026001Chlorine, total residual, instantaneous maximum.05 mg/L≤ .033 mg/L52%
February 2026001Nitrogen, ammonia total [as N], monthly average2.88 mg/L≤ 2 mg/L44%
February 2026001Nitrogen, ammonia total [as N], monthly average29.85 lb/d≤ 25 lb/d19%
February 2026001Solids, total suspended, monthly average30.59 mg/L≤ 15 mg/L104%
February 2026001Solids, total suspended, monthly average317.06 lb/d≤ 188 lb/d69%
February 2026001Solids, total suspended, weekly average37.04 mg/L≤ 23 mg/L61%
February 2026002Solids, total suspended, monthly average22 mg/L≤ 15 mg/L47%
March 2026001BOD, carbonaceous [5 day, 20 C], monthly average135.16 lb/d≤ 125 lb/d8%
March 2026001BOD, carbonaceous [5 day, 20 C], monthly average16.55 mg/L≤ 10 mg/L66%
March 2026001BOD, carbonaceous [5 day, 20 C], weekly average19.36 mg/L≤ 15 mg/L29%
March 2026001Nitrogen, ammonia total [as N], monthly average2.33 mg/L≤ 2 mg/L17%
March 2026001Nitrogen, ammonia total [as N], weekly average4.71 mg/L≤ 4 mg/L18%
March 2026001Solids, total suspended, monthly average327.38 lb/d≤ 188 lb/d74%
March 2026001Solids, total suspended, monthly average40.07 mg/L≤ 15 mg/L167%
March 2026001Solids, total suspended, weekly average56.3 mg/L≤ 23 mg/L145%
April 2026001BOD, carbonaceous [5 day, 20 C], monthly average11.8 mg/L≤ 10 mg/L18%
April 2026001BOD, carbonaceous [5 day, 20 C], monthly average11.8 mg/L≤ 10 mg/L18%
April 2026001BOD, carbonaceous [5 day, 20 C], weekly average16.12 mg/L≤ 15 mg/L7%
April 2026001BOD, carbonaceous [5 day, 20 C], weekly average16.12 mg/L≤ 15 mg/L7%
April 2026001Nitrogen, ammonia total [as N], monthly average2.32 mg/L≤ 2 mg/L16%
April 2026001Nitrogen, ammonia total [as N], monthly average2.32 mg/L≤ 2 mg/L16%
April 2026001Nitrogen, ammonia total [as N], weekly average4.98 mg/L≤ 4 mg/L25%
April 2026001Nitrogen, ammonia total [as N], weekly average4.98 mg/L≤ 4 mg/L25%
April 2026001Oxygen, dissolved [DO], monthly average minimum5.41 mg/L≥ 6 mg/L10%
April 2026001Oxygen, dissolved [DO], monthly average minimum5.41 mg/L≥ 6 mg/L10%
April 2026001Solids, total suspended, monthly average271.46 lb/d≤ 188 lb/d44%
April 2026001Solids, total suspended, monthly average271.46 lb/d≤ 188 lb/d44%
April 2026001Solids, total suspended, monthly average43.35 mg/L≤ 15 mg/L189%
April 2026001Solids, total suspended, monthly average43.35 mg/L≤ 15 mg/L189%
April 2026001Solids, total suspended, weekly average54.54 mg/L≤ 23 mg/L137%
April 2026001Solids, total suspended, weekly average54.54 mg/L≤ 23 mg/L137%
April 2026001Whole Effluent Toxicity [WET] - C. dubia, 7-day minimum0 %≥ 96 %100%
April 2026001Whole Effluent Toxicity [WET] - C. dubia, monthly average minimum0 %≥ 96 %100%
May 2026001BOD, carbonaceous [5 day, 20 C], monthly average13.02 mg/L≤ 10 mg/L30%
May 2026001BOD, carbonaceous [5 day, 20 C], weekly average18.9 mg/L≤ 15 mg/L26%
May 2026001Nitrogen, ammonia total [as N], monthly average31.6 lb/d≤ 25 lb/d26%
May 2026001Nitrogen, ammonia total [as N], monthly average4.08 mg/L≤ 2 mg/L104%
May 2026001Nitrogen, ammonia total [as N], weekly average6.58 mg/L≤ 4 mg/L65%
May 2026001Solids, total suspended, monthly average300.23 lb/d≤ 188 lb/d60%
May 2026001Solids, total suspended, monthly average38.75 mg/L≤ 15 mg/L158%
May 2026001Solids, total suspended, weekly average48.17 mg/L≤ 23 mg/L109%
May 2026001Whole Effluent Toxicity [WET] - C. dubia, 7-day minimum0 %≥ 96 %100%
May 2026001Whole Effluent Toxicity [WET] - C. dubia, 7-day minimum0 %≥ 96 %100%
May 2026001Whole Effluent Toxicity [WET] - C. dubia, monthly average minimum0 %≥ 96 %100%
May 2026001Whole Effluent Toxicity [WET] - C. dubia, monthly average minimum0 %≥ 96 %100%
May 2026002pH, instantaneous maximum8.8 SU≤ 8.5 SU—
June 2026001BOD, carbonaceous [5 day, 20 C], monthly average11.89 mg/L≤ 10 mg/L19%
June 2026001BOD, carbonaceous [5 day, 20 C], monthly average11.89 mg/L≤ 10 mg/L19%
June 2026001Nitrogen, ammonia total [as N], monthly average4.16 mg/L≤ 2 mg/L108%
June 2026001Nitrogen, ammonia total [as N], monthly average4.16 mg/L≤ 2 mg/L108%
June 2026001Nitrogen, ammonia total [as N], weekly average6.24 mg/L≤ 4 mg/L56%
June 2026001Nitrogen, ammonia total [as N], weekly average6.24 mg/L≤ 4 mg/L56%
June 2026001Solids, total suspended, monthly average22.47 mg/L≤ 15 mg/L50%
June 2026001Solids, total suspended, monthly average22.47 mg/L≤ 15 mg/L50%
June 2026001Solids, total suspended, weekly average52 mg/L≤ 23 mg/L126%
June 2026001Solids, total suspended, weekly average52 mg/L≤ 23 mg/L126%
July 2026001BOD, carbonaceous [5 day, 20 C], monthly average15.53 mg/L≤ 10 mg/L55%
July 2026001BOD, carbonaceous [5 day, 20 C], monthly average15.53 mg/L≤ 10 mg/L55%
July 2026001BOD, carbonaceous [5 day, 20 C], weekly average22.11 mg/L≤ 15 mg/L47%
July 2026001BOD, carbonaceous [5 day, 20 C], weekly average22.11 mg/L≤ 15 mg/L47%
July 2026001Nitrogen, ammonia total [as N], monthly average32.38 lb/d≤ 25 lb/d30%
July 2026001Nitrogen, ammonia total [as N], monthly average32.38 lb/d≤ 25 lb/d30%
July 2026001Nitrogen, ammonia total [as N], monthly average5.46 mg/L≤ 2 mg/L173%
July 2026001Nitrogen, ammonia total [as N], monthly average5.46 mg/L≤ 2 mg/L173%
July 2026001Nitrogen, ammonia total [as N], weekly average6.56 mg/L≤ 4 mg/L64%
July 2026001Nitrogen, ammonia total [as N], weekly average6.56 mg/L≤ 4 mg/L64%
July 2026001Solids, total suspended, monthly average213.43 lb/d≤ 188 lb/d14%
July 2026001Solids, total suspended, monthly average213.43 lb/d≤ 188 lb/d14%
July 2026001Solids, total suspended, monthly average36.01 mg/L≤ 15 mg/L140%
July 2026001Solids, total suspended, monthly average36.01 mg/L≤ 15 mg/L140%
July 2026001Solids, total suspended, weekly average47.24 mg/L≤ 23 mg/L105%
July 2026001Solids, total suspended, weekly average47.24 mg/L≤ 23 mg/L105%
July 2026001Whole Effluent Toxicity [WET] - C. dubia, 7-day minimum0 %≥ 96 %100%
July 2026001Whole Effluent Toxicity [WET] - C. dubia, 7-day minimum0 %≥ 96 %100%
July 2026001Whole Effluent Toxicity [WET] - C. dubia, monthly average minimum0 %≥ 96 %100%
July 2026001Whole Effluent Toxicity [WET] - C. dubia, monthly average minimum0 %≥ 96 %100%
July 2026001Whole Effluent Toxicity [WET] - P. promelas, 7-day minimum54 %≥ 96 %44%
July 2026001Whole Effluent Toxicity [WET] - P. promelas, 7-day minimum54 %≥ 96 %44%
July 2026001Whole Effluent Toxicity [WET] - P. promelas, monthly average minimum54 %≥ 96 %44%
July 2026001Whole Effluent Toxicity [WET] - P. promelas, monthly average minimum54 %≥ 96 %44%
August 2026001BOD, carbonaceous [5 day, 20 C], monthly average21.05 mg/L≤ 10 mg/L111%
August 2026001BOD, carbonaceous [5 day, 20 C], weekly average23.45 mg/L≤ 15 mg/L56%
August 2026001Nitrogen, ammonia total [as N], monthly average26.23 lb/d≤ 25 lb/d5%
August 2026001Nitrogen, ammonia total [as N], monthly average8.23 mg/L≤ 2 mg/L312%
August 2026001Nitrogen, ammonia total [as N], weekly average11.76 mg/L≤ 4 mg/L194%
August 2026001Oxygen, dissolved [DO], monthly average minimum5.61 mg/L≥ 6 mg/L7%
August 2026001Solids, total suspended, monthly average22.54 mg/L≤ 15 mg/L50%
August 2026001Solids, total suspended, weekly average28.13 mg/L≤ 23 mg/L22%

Limits in force (71)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]monthly average minimum≥ 6 mg/Lall year001
pHinstantaneous minimum≥ 6 SUall year001
pHinstantaneous maximum≤ 8.5 SUall year001
Solids, total suspendedmonthly average≤ 15 mg/Lall year001
Solids, total suspendedweekly average≤ 23 mg/Lall year001
Solids, total suspendedmonthly average≤ 188 lb/dall year001
Nitrogen, total [as N]monthly averagereport only (mg/L)all year001
Nitrogen, total [as N]weekly averagereport only (mg/L)all year001
Nitrogen, total [as N]monthly averagereport only (lb/d)all year001
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/Lall year001
Nitrogen, ammonia total [as N]weekly average≤ 4 mg/Lall year001
Nitrogen, ammonia total [as N]monthly average≤ 25 lb/dall year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]weekly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (lb/d)all year001
Cyanide, total [as CN]monthly averagereport only (mg/L)all year001
Cyanide, total [as CN]daily maximumreport only (mg/L)all year001
Cyanide, total [as CN]monthly average≤ .049 lb/dall year001
Cyanide, total [as CN]daily maximum≤ .116 lb/dall year001
PCB, total, scan effluentdaily maximum≤ .2 mg/Lall year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all year001
Chlorine, total residualinstantaneous maximum≤ .033 mg/Lall year001
Whole Effluent Toxicity [WET] - C. dubia7-day minimum≥ 96 %all year001
Whole Effluent Toxicity [WET] - C. dubiamonthly average minimum≥ 96 %all year001
Whole Effluent Toxicity [WET] - P. promelas7-day minimum≥ 96 %all year001
Whole Effluent Toxicity [WET] - P. promelasmonthly average minimum≥ 96 %all year001
Mercury, total [as Hg]monthly averagereport only (mg/L)all year001
Mercury, total [as Hg]daily maximumreport only (mg/L)all year001
Mercury, total [as Hg]monthly average≤ .00033 lb/dall year001
Mercury, total [as Hg]daily maximum≤ .00078 lb/dall year001
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year001
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/Lall year001
BOD, carbonaceous [5 day, 20 C]monthly average≤ 125 lb/dall year001
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (pass=0;fail=1)all year001
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (pass=0;fail=1)all year001
Pass/Fail Static Renewal 7Day Chronic Pimephales promelas7-day minimumreport only (pass=0;fail=1)all year001
Pass/Fail Static Renewal 7Day Chronic Pimephales promelasmonthly average minimumreport only (pass=0;fail=1)all year001
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (pass=0;fail=1)all year001
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (pass=0;fail=1)all year001
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (pass=0;fail=1)all year001
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (pass=0;fail=1)all year001
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all year001
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all year001
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all year001
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all year001
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7-day minimumreport only (%)all year001
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiamonthly average minimumreport only (%)all year001
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7-day minimumreport only (%)all year001
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasmonthly average minimumreport only (%)all year001
Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubiamaximumreport only (%)all year001
Coef Of Var Static Renewal 7Day Chronic Pimephales promelasmaximumreport only (%)all year001
Oxygen, dissolved [DO]monthly average minimum≥ 6 mg/Lall year002
pHinstantaneous minimum≥ 6 SUall year002
pHinstantaneous maximum≤ 8.5 SUall year002
Solids, total suspendedmonthly average≤ 15 mg/Lall year002
Solids, total suspendedweekly average≤ 23 mg/Lall year002
Nitrogen, total [as N]monthly averagereport only (mg/L)all year002
Nitrogen, total [as N]weekly averagereport only (mg/L)all year002
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/Lall year002
Nitrogen, ammonia total [as N]weekly average≤ 4 mg/Lall year002
Phosphorus, total [as P]monthly averagereport only (mg/L)all year002
Phosphorus, total [as P]weekly averagereport only (mg/L)all year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantweekly averagereport only (MGD)all year002
Coliform, fecal generalmonthly average≤ 200 #/100mLall year002
Coliform, fecal generalweekly average≤ 400 #/100mLall year002
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year002
BOD, carbonaceous [5 day, 20 C]weekly average≤ 15 mg/Lall year002

How strict are these limits?

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

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