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PCSSD d/b/a Landmark Elementary School Treatment Facility

Elementary And Secondary Schools, Little Rock, Arkansas. NPDES permit AR0044610 expired Jul 31, 2026; its limits still apply. Last 12 months: over a limit 13 times (last July 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form A monthly (2 values), form Q quarterly (13 values), form F quarterly
Last report on file
August 2026
Oct 2024 – Sep 2025
27 values over a limit, 1 required value missing, 2 of 21 reports late

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

All 13 values over a limit
Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], monthly average.97 lb/d≤ .3 lb/d223%
October 2025Nitrogen, ammonia total [as N], monthly average33.3 mg/L≤ 4 mg/L733%
October 2025Oxygen, dissolved [DO], instantaneous minimum2.52 mg/L≥ 4 mg/L37%
December 2025Coliform, fecal general, 30-day geometric mean> 2419 #/100mL≤ 1000 #/100mL—
December 2025Coliform, fecal general, 7-day geometric mean> 2419 #/100mL≤ 2000 #/100mL—
March 2026Coliform, fecal general, 30-day geometric mean> 2419 #/100mL≤ 1000 #/100mL—
March 2026Coliform, fecal general, 7-day geometric mean> 2419 #/100mL≤ 2000 #/100mL—
April 2026BOD, carbonaceous [5 day, 20 C], daily maximum138.8 mg/L≤ 38 mg/L265%
April 2026BOD, carbonaceous [5 day, 20 C], monthly average138.8 mg/L≤ 25 mg/L455%
June 2026Coliform, fecal general, 30-day geometric mean1584 #/100mL≤ 1000 #/100mL58%
June 2026Coliform, fecal general, 7-day geometric mean> 2419 #/100mL≤ 2000 #/100mL—
July 2026Nitrogen, ammonia total [as N], daily maximum14 mg/L≤ 6 mg/L133%
July 2026Nitrogen, ammonia total [as N], monthly average13.5 mg/L≤ 4 mg/L238%

Limits in force (37)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 2 mg/LJan, Feb, Mar, Apr, Nov, Dec
Oxygen, dissolved [DO]instantaneous minimum≥ 4 mg/LMay–Oct
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 30 mg/Lall year
Solids, total suspendeddaily maximum≤ 45 mg/Lall year
Solids, total suspendedmonthly average≤ 2.5 lb/dall year
Solids, total suspendeddaily maximum≤ 3.8 lb/dall year
Oil & Greasemonthly average≤ 10 mg/Lall year
Oil & Greasedaily maximum≤ 15 mg/Lall year
Oil & Greasemonthly average≤ .8 lb/dall year
Oil & Greasedaily maximum≤ 1.3 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 6.1 mg/LApr
Nitrogen, ammonia total [as N]monthly average≤ 4 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 10 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 6.1 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 6 mg/LMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 15 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ .5 lb/dApr
Nitrogen, ammonia total [as N]monthly average≤ .3 lb/dMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ .8 lb/dJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ .5 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ .5 lb/dMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 1.3 lb/dJan, Feb, Mar, Nov, Dec
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year
Chlorine, total residualinstantaneous maximumreport only (mg/L)all year
Coliform, fecal general30-day geometric mean≤ 1000 #/100mLall year
Coliform, fecal general7-day geometric mean≤ 2000 #/100mLall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 25 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 38 mg/LJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 30 mg/LMay–Oct
BOD, carbonaceous [5 day, 20 C]monthly average≤ 2.1 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]monthly average≤ 1.7 lb/dMay–Oct
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 3.1 lb/dJan, Feb, Mar, Apr, Nov, Dec
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 2.5 lb/dMay–Oct

How strict are these limits?

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

Same industry: the 25 Educational Services permits in Arkansas.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/AR0044610 · MCP: https://passage-data.com/mcp