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HEPOA, LLC - Harbor East POA, LLC

Sewerage Systems, Mount Ida, Arkansas. NPDES permit AR0039403, in force until Mar 31, 2029. Last 12 months: over a limit 4 times (last December 2025), 4 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form A monthly (28 values)
Last report on file
August 2026
Oct 2024 – Sep 2025
4 values over a limit, 0 required values missing, 0 of 12 reports late

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

Period endingParameterReportedLimitOver by
October 2025Oxygen, dissolved [DO], instantaneous minimum2.46 mg/L≥ 5 mg/L51%
December 2025BOD, carbonaceous [5 day, 20 C], daily maximum18.4 mg/L≤ 15 mg/L23%
December 2025BOD, carbonaceous [5 day, 20 C], monthly average18.4 mg/L≤ 10 mg/L84%
December 2025Oxygen, dissolved [DO], instantaneous minimum5.47 mg/L≥ 6 mg/L9%

Limits in force (35)

ParameterStatisticLimitMonths
Flow ratemonthly averagereport only (%)all year
Flow ratedaily maximumreport only (%)all year
Oxygen, dissolved [DO]instantaneous minimum≥ 6 mg/LJan, Feb, Mar, Apr, Nov, Dec
Oxygen, dissolved [DO]instantaneous minimum≥ 5 mg/LMay–Oct
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 15 mg/Lall year
Solids, total suspendeddaily maximum≤ 22.5 mg/Lall year
Solids, total suspendedmonthly average≤ 11.1 lb/dall year
Solids, total suspendeddaily maximum≤ 16.7 lb/dall year
Nitrogen, ammonia total [as N]monthly average≤ 5.2 mg/LApr–Oct
Nitrogen, ammonia total [as N]monthly average≤ 14.7 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 5.2 mg/LApr–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 14.7 mg/LJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]monthly average≤ 3.9 lb/dApr–Oct
Nitrogen, ammonia total [as N]monthly average≤ 10.9 lb/dJan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]daily maximum≤ 5.6 lb/dApr–Oct
Nitrogen, ammonia total [as N]daily maximum≤ 10.9 lb/dJan, Feb, Mar, Nov, Dec
Phosphorus, total [as P]monthly averagereport only (mg/L)all year
Phosphorus, total [as P]daily maximumreport only (mg/L)all year
Phosphorus, total [as P]monthly averagereport only (lb/d)all year
Phosphorus, total [as P]daily maximumreport only (lb/d)all year
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≤ 200 #/100mLMay–Sep
Coliform, fecal general30-day geometric mean≤ 1000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
Coliform, fecal general7-day geometric mean≤ 400 #/100mLMay–Sep
Coliform, fecal general7-day geometric mean≤ 2000 #/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec
Overflowsmonthly totalreport only (occur/mo)all year
Overflow volume [SS0 volume, CSO volume]monthly totalreport only (gal)all year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 15 mg/Lall year
BOD, carbonaceous [5 day, 20 C]monthly average≤ 7.4 lb/dall year
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 11.1 lb/dall year

New limits from Apr 1, 2027

ParameterNew limitNew or tighterMedian, last 12 months× new limit
Chlorine, total residual, instantaneous maximum0.011 mg/Lnew0.02 mg/L (11 values, 8 below detection)—

How strict are these limits?

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

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Your permit document is the final word. As JSON: /api/v1/permits/AR0039403 · MCP: https://passage-data.com/mcp