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West Memphis Utilities - West Memphis Wastewater Treatment Facility

Sewage treatment plant, major discharger, West Memphis, Arkansas. NPDES permit AR0022039, in force until Oct 31, 2029. Last 12 months: over a limit 10 times (last May 2026), 3 of 27 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: outfall 001 form A monthly (15 values), outfall 001 form A1 monthly (19 values), outfall TX1 form Q quarterly (12 values), outfall 001 form Y yearly
Last report on file
September 2026
Oct 2024 – Sep 2025
2 values over a limit, 0 required values missing, 0 of 29 reports late

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

Period endingParameterReportedLimitOver by
February 2026Coliform, fecal general, 7-day geometric mean24194 #/100mL≤ 2000 #/100mL1110%
February 2026Solids, total suspended, 7-day average58.4 mg/L≤ 45 mg/L30%
March 2026Coliform, fecal general, 30-day geometric mean1640 #/100mL≤ 1000 #/100mL64%
March 2026Coliform, fecal general, 7-day geometric mean24194 #/100mL≤ 2000 #/100mL1110%
March 2026Solids, total suspended, 7-day average48 mg/L≤ 45 mg/L7%
April 2026Coliform, fecal general, 30-day geometric mean6326 #/100mL≤ 1000 #/100mL533%
April 2026Coliform, fecal general, 7-day geometric mean24194 #/100mL≤ 2000 #/100mL1110%
May 2026BOD, 5-day, 20 deg. C, 7-day average49.5 mg/L≤ 45 mg/L10%
May 2026Coliform, fecal general, 30-day geometric mean2677 #/100mL≤ 200 #/100mL1239%
May 2026Coliform, fecal general, 7-day geometric mean24194 #/100mL≤ 400 #/100mL5949%

Limits in force (54)

ParameterStatisticLimitMonthsOutfall
Oxygen, dissolved [DO]instantaneous minimum≥ 2 mg/Lall year001
Oxygen, dissolved [DO]instantaneous minimum≥ 2 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/Lall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 1576.3 lb/dall year001
BOD, 5-day, 20 deg. Cmonthly average≤ 3002.4 lb/dall year001
pHminimum≥ 6 SUall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspendedmonthly average≤ 30 mg/Lall year001
Solids, total suspended7-day average≤ 45 mg/Lall year001
Solids, total suspended7-day average≤ 45 mg/Lall year001
Solids, total suspendedmonthly average≤ 1576.3 lb/dall year001
Solids, total suspendedmonthly average≤ 3002.4 lb/dall year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]monthly averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]7-day averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]7-day averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]monthly averagereport only (mg/L)all year001
Phosphorus, total [as P]7-day averagereport only (mg/L)all year001
Phosphorus, total [as P]7-day averagereport only (mg/L)all year001
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)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
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Coliform, fecal general30-day geometric mean≤ 200 #/100mLMay–Sep001
Coliform, fecal general30-day geometric mean≤ 1000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
Coliform, fecal general30-day geometric mean≤ 200 #/100mLMay–Sep001
Coliform, fecal general30-day geometric mean≤ 1000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMay–Sep001
Coliform, fecal general7-day geometric mean≤ 2000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMay–Sep001
Coliform, fecal general7-day geometric mean≤ 2000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
Overflowstotalreport only (occur/mo)all year001
Overflowsmonthly totalreport only (occur/mo)all year001
Overflow volume [SS0 volume, CSO volume]totalreport only (gal)all year001
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (gal)all year001
Whole effluent toxicity - retest #148-hour minimumreport only (pass=0;fail=1)all yearTX1
Whole effluent toxicity - retest #248-hour minimumreport only (pass=0;fail=1)all yearTX1
WET, sublethal retest #148-hour minimumreport only (pass=0;fail=1)all yearTX1
WET, sublethal retest #248-hour minimumreport only (pass=0;fail=1)all yearTX1
Whole Effluent Toxicity - Retest #348-hour minimumreport only (pass=0;fail=1)all yearTX1
Whole Effluent Toxicity, Sub-Lethal Retest #348-hour minimumreport only (pass=0;fail=1)all yearTX1
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48-hour minimumreport only (pass=0;fail=1)all yearTX1
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (pass=0;fail=1)all yearTX1
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48-hour minimumreport only (%)all yearTX1
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48-hour minimumreport only (%)all yearTX1
Coef Of Var Static Renewal 48Hr Acute D. pulex48-hour minimumreport only (%)all yearTX1
Coef Of Var Static Renewal 48Hr Acute Pimephales promelas48-hour minimumreport only (%)all yearTX1

How strict are these limits?

Cited limits by parameter: Arkansas'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/AR0022039 · MCP: https://passage-data.com/mcp