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Consolidated Waterworks/Sewerage District #1 - Parish of Bossier

Sewage treatment plant, major discharger, Bossier City, Louisiana. NPDES permit LA0126152, in force until Apr 30, 2031. Last 12 months: over a limit 19 times (last August 2026), 15 of 23 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: form A monthly (13 values), form DA quarterly (11 values), form PI quarterly (11 values), form Q quarterly, form Y yearly
Last report on file
September 2026
Oct 2024 – Sep 2025
5 values over a limit, 6 required values missing, 8 of 25 reports late

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

All 19 values over a limit
Period endingParameterReportedLimitOver by
October 2025Coliform, fecal general, weekly geometric mean445 #/100mL≤ 400 #/100mL11%
December 2025Coliform, fecal general, weekly geometric mean> 1600 #/100mL≤ 400 #/100mL—
January 2026Chlorine, total residual, daily maximum.26 mg/L≤ .19 mg/L37%
January 2026Coliform, fecal general, weekly geometric mean> 1600 #/100mL≤ 400 #/100mL—
February 2026Coliform, fecal general, monthly geometric mean1670 #/100mL≤ 200 #/100mL735%
February 2026Coliform, fecal general, weekly geometric mean> 2529 #/100mL≤ 400 #/100mL—
March 2026Coliform, fecal general, monthly geometric mean> 2070 #/100mL≤ 200 #/100mL—
March 2026Coliform, fecal general, weekly geometric mean> 12649 #/100mL≤ 400 #/100mL—
May 2026Coliform, fecal general, monthly geometric mean319 #/100mL≤ 200 #/100mL60%
May 2026Coliform, fecal general, weekly geometric mean1358 #/100mL≤ 400 #/100mL240%
June 2026BOD, percent removal [total], monthly average minimum81.9 %≥ 85 %21%
June 2026Coliform, fecal general, monthly geometric mean3606 #/100mL≤ 200 #/100mL1703%
June 2026Coliform, fecal general, weekly geometric mean26533 #/100mL≤ 400 #/100mL6533%
July 2026Chlorine, total residual, daily maximum.26 mg/L≤ .2 mg/L30%
July 2026Coliform, fecal general, monthly geometric mean1439 #/100mL≤ 200 #/100mL620%
July 2026Coliform, fecal general, weekly geometric mean26981 #/100mL≤ 400 #/100mL6645%
August 2026Chlorine, total residual, daily maximum.36 mg/L≤ .2 mg/L80%
August 2026Coliform, fecal general, monthly geometric mean> 40000 #/100mL≤ 200 #/100mL—
August 2026Coliform, fecal general, weekly geometric mean> 40000 #/100mL≤ 400 #/100mL—

Limits in force (48)

ParameterStatisticLimitMonths
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. Cweekly average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 751 lb/dall year
BOD, 5-day, 20 deg. Cmonthly averagereport only (mg/L)all year
BOD, 5-day, 20 deg. Cweekly averagereport only (mg/L)all year
pHinstantaneous minimum≥ 6 SUall year
pHinstantaneous maximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendedweekly average≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 751 lb/dall year
Solids, total suspendedmonthly averagereport only (mg/L)all year
Solids, total suspendedweekly averagereport only (mg/L)all 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
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
Whole effluent toxicity - retest #148-hour minimumreport only (pass=0;fail=1)all year
Whole effluent toxicity - retest #148-hour minimumreport only (pass=0;fail=1)all year
Whole effluent toxicity - retest #1monthly average minimumreport only (pass=0;fail=1)all year
Whole effluent toxicity - retest #1monthly average minimumreport only (pass=0;fail=1)all year
Whole effluent toxicity - retest #248-hour minimumreport only (pass=0;fail=1)all year
Whole effluent toxicity - retest #248-hour minimumreport only (pass=0;fail=1)all year
Whole effluent toxicity - retest #2monthly average minimumreport only (pass=0;fail=1)all year
Whole effluent toxicity - retest #2monthly average minimumreport only (pass=0;fail=1)all 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≤ .2 mg/Lall year
BOD, percent removal [total]monthly average minimum≥ 85 %all year
Priority pollutants scan [yes/no]minimum≥ 1 N=0;Y=1all year
Whole Effluent Toxicity - Retest #348-hour minimumreport only (pass=0;fail=1)all year
Whole Effluent Toxicity - Retest #348-hour minimumreport only (pass=0;fail=1)all year
Whole Effluent Toxicity - Retest #3monthly average minimumreport only (pass=0;fail=1)all year
Whole Effluent Toxicity - Retest #3monthly average minimumreport only (pass=0;fail=1)all year
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLall year
Coliform, fecal generalweekly geometric mean≤ 400 #/100mLall year
Solids, suspended percent removalmonthly average minimum≥ 85 %all year
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48-hour minimumreport only (pass=0;fail=1)all year
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulexmonthly average minimumreport only (pass=0;fail=1)all year
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (pass=0;fail=1)all year
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelasmonthly average minimumreport only (pass=0;fail=1)all year
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48-hour minimumreport only (%)all year
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulexmonthly average minimumreport only (%)all year
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48-hour minimumreport only (%)all year
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelasmonthly average minimumreport only (%)all year
Coef Of Var Static Renewal 48Hr Acute D. pulexmaximumreport only (%)all year
Coef Of Var Static Renewal 48Hr Acute Pimephales promelasmaximumreport only (%)all year

How strict are these limits?

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

Check this month's numbers Email me before each report is due

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/LA0126152 · MCP: https://passage-data.com/mcp