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Lake Hamilton School District No. 5

Elementary And Secondary Schools, Pearcy, Arkansas. NPDES permit AR0045624 expired Sep 30, 2021; its limits still apply. Last 12 months: over a limit 22 times (last August 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form A monthly (23 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
7 values over a limit, 0 required values missing, 1 of 12 reports late

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

All 22 values over a limit
Period endingParameterReportedLimitOver by
October 2025Nitrogen, ammonia total [as N], daily maximum9.1 mg/L≤ 7.5 mg/L21%
April 2026Coliform, fecal general, 7-day geometric mean> 2400 #/100mL≤ 2000 #/100mL—
April 2026Nitrogen, ammonia total [as N], daily maximum12 lb/d≤ 5.2 lb/d131%
April 2026Nitrogen, ammonia total [as N], daily maximum15 mg/L≤ 5.2 mg/L188%
April 2026Nitrogen, ammonia total [as N], monthly average6.2 lb/d≤ 5.2 lb/d19%
April 2026Nitrogen, ammonia total [as N], monthly average7.8 mg/L≤ 5.2 mg/L50%
April 2026Solids, total suspended, daily maximum51 mg/L≤ 45 mg/L13%
May 2026Coliform, fecal general, 30-day geometric mean3394.1 #/100mL≤ 1000 #/100mL239%
May 2026Nitrogen, ammonia total [as N], daily maximum8.1 mg/L≤ 7.5 mg/L8%
May 2026pH, minimum4.36 SU≥ 6 SU—
June 2026Coliform, fecal general, 30-day geometric mean1897.4 #/100mL≤ 1000 #/100mL90%
June 2026Coliform, fecal general, 7-day geometric mean> 2400 #/100mL≤ 2000 #/100mL—
June 2026Solids, total suspended, daily maximum64 mg/L≤ 45 mg/L42%
June 2026Solids, total suspended, monthly average36 mg/L≤ 30 mg/L20%
June 2026pH, minimum5.5 SU≥ 6 SU—
July 2026Coliform, fecal general, 30-day geometric mean> 2400 #/100mL≤ 1000 #/100mL—
July 2026Coliform, fecal general, 7-day geometric mean> 2400 #/100mL≤ 2000 #/100mL—
August 2026Coliform, fecal general, 30-day geometric mean> 2400 #/100mL≤ 1000 #/100mL—
August 2026Coliform, fecal general, 7-day geometric mean> 2400 #/100mL≤ 2000 #/100mL—
August 2026Solids, total suspended, daily maximum68.1 lb/d≤ 45 lb/d51%
August 2026Solids, total suspended, monthly average34.5 mg/L≤ 30 mg/L15%
August 2026Solids, total suspended, monthly average54.9 lb/d≤ 30 lb/d83%

Limits in force (32)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/LMay–Oct
Oxygen, dissolved [DO]instantaneous minimum≥ 2 mg/LJan, Feb, Mar, Apr, Nov, Dec
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≤ 30 lb/dall year
Solids, total suspendeddaily maximum≤ 45 lb/dall year
Oil & Greasemonthly average≤ 10 mg/Lall year
Oil & Greasedaily maximum≤ 15 mg/Lall year
Oil & Greasemonthly average≤ 10 lb/dall year
Oil & Greasedaily maximum≤ 15 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 12 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 5.2 mg/LApr
Nitrogen, ammonia total [as N]monthly average≤ 5 mg/LMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 14.7 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 5.2 mg/LApr
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LMay–Oct
Nitrogen, ammonia total [as N]monthly average≤ 12 lb/dJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 5.2 lb/dApr
Nitrogen, ammonia total [as N]monthly average≤ 5 lb/dMay–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 14.7 lb/dJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 5.2 lb/dApr
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 lb/dMay–Oct
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)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≤ 20 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 30 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 20 lb/dall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 30 lb/dall year

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/AR0045624 · MCP: https://passage-data.com/mcp