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Coal Hill, City of

Sewage treatment plant, Coal Hill, Arkansas. NPDES permit AR0047686, in force until Aug 31, 2027. Last 12 months: over a limit 20 times (last August 2026), 105 required values missing, 10 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 25 days after each period: form A monthly (15 values)
Renewal application due
Mar 4, 2027 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
5 values over a limit, 45 required values missing, 8 of 12 reports late

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

All 20 values over a limit
Period endingParameterReportedLimitOver by
October 2025Coliform, fecal general, 7-day geometric mean4400≤ 2000 #/100mL120%
October 2025Coliform, fecal general, 7-day geometric mean4400≤ 2000 #/100mL120%
October 2025pH, maximum9.2≤ 9 SU—
November 2025Coliform, fecal general, 7-day geometric mean2100≤ 2000 #/100mL5%
November 2025Coliform, fecal general, 7-day geometric mean2100≤ 2000 #/100mL5%
January 2026BOD, 5-day, 20 deg. C, 7-day average59≤ 45 mg/L31%
January 2026BOD, 5-day, 20 deg. C, 7-day average59≤ 45 mg/L31%
January 2026BOD, 5-day, 20 deg. C, monthly average43≤ 30 mg/L43%
January 2026BOD, 5-day, 20 deg. C, monthly average43≤ 30 mg/L43%
February 2026BOD, 5-day, 20 deg. C, monthly average34≤ 30 mg/L13%
February 2026BOD, 5-day, 20 deg. C, monthly average34≤ 30 mg/L13%
March 2026BOD, 5-day, 20 deg. C, 7-day average60≤ 45 mg/L33%
March 2026BOD, 5-day, 20 deg. C, 7-day average60≤ 45 mg/L33%
March 2026BOD, 5-day, 20 deg. C, monthly average35≤ 30 mg/L17%
March 2026BOD, 5-day, 20 deg. C, monthly average35≤ 30 mg/L17%
April 2026Oxygen, dissolved [DO], instantaneous minimum.65≥ 2 mg/L68%
April 2026Oxygen, dissolved [DO], instantaneous minimum.65≥ 2 mg/L68%
April 2026pH, maximum9.4≤ 9 SU—
July 2026Oxygen, dissolved [DO], instantaneous minimum.15 mg/L≥ 2 mg/L93%
August 2026BOD, 5-day, 20 deg. C, monthly average32 mg/L≤ 30 mg/L7%

Limits in force (17)

ParameterStatisticLimitMonths
Oxygen, dissolved [DO]instantaneous minimum≥ 2 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year
BOD, 5-day, 20 deg. C7-day average≤ 45 mg/Lall year
BOD, 5-day, 20 deg. Cmonthly average≤ 37.5 lb/dall year
pHminimum≥ 6 SUall year
pHmaximum≤ 9 SUall year
Solids, total suspendedmonthly average≤ 90 mg/Lall year
Solids, total suspended7-day average≤ 135 mg/Lall year
Solids, total suspendedmonthly average≤ 112.6 lb/dall 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
Coliform, fecal generalmonthly geometric mean≤ 200 #/100mLMay–Sep
Coliform, fecal generalmonthly 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

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

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