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Carmeuse Lime - Maysville Operation

Lime, Maysville, Kentucky. NPDES permit KY0090387, in force until Sep 30, 2028. Last 12 months: over a limit 11 times (last August 2026), 4 of 44 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 001 form 1 monthly (8 values), outfall 002 form 1 monthly (8 values), outfall 006 form 1 monthly (8 values), outfall 007 form 1 monthly (15 values)
Renewal application due
Apr 3, 2028 · 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, 0 required values missing, 12 of 48 reports late

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

Period endingOutfallParameterReportedLimitOver by
November 2025006Solids, total suspended, daily maximum221 mg/L≤ 70 mg/L216%
November 2025006Solids, total suspended, monthly average221 mg/L≤ 35 mg/L531%
February 2026006Solids, total suspended, daily maximum181 mg/L≤ 70 mg/L159%
February 2026006Solids, total suspended, monthly average181 mg/L≤ 35 mg/L417%
March 2026006Solids, total suspended, daily maximum984 mg/L≤ 70 mg/L1306%
March 2026006Solids, total suspended, monthly average329 mg/L≤ 35 mg/L840%
April 2026006Solids, total suspended, daily maximum412 mg/L≤ 70 mg/L489%
April 2026006Solids, total suspended, monthly average213 mg/L≤ 35 mg/L509%
May 2026007Nitrogen, ammonia total [as N], monthly average2.06 mg/L≤ 2 mg/L3%
August 2026006Solids, total suspended, daily maximum464 mg/L≤ 70 mg/L563%
August 2026006Solids, total suspended, monthly average464 mg/L≤ 35 mg/L1226%

Limits in force (41)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 35 mg/Lall year001
Solids, total suspendeddaily maximum≤ 70 mg/Lall year001
Oil & Greasemonthly average≤ 10 mg/Lall year001
Oil & Greasedaily maximum≤ 15 mg/Lall 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
pHminimum≥ 6 SUall year002
pHmaximum≤ 9 SUall year002
Solids, total suspendedmonthly average≤ 35 mg/Lall year002
Solids, total suspendeddaily maximum≤ 70 mg/Lall year002
Oil & Greasemonthly average≤ 10 mg/Lall year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
pHminimum≥ 6 SUall year006
pHmaximum≤ 9 SUall year006
Solids, total suspendedmonthly average≤ 35 mg/Lall year006
Solids, total suspendeddaily maximum≤ 70 mg/Lall year006
Oil & Greasemonthly average≤ 10 mg/Lall year006
Oil & Greasedaily maximum≤ 15 mg/Lall year006
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year006
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year006
Oxygen, dissolved [DO]instantaneous minimum≥ 7 mg/Lall year007
pHminimum≥ 6 SUall year007
pHmaximum≤ 9 SUall year007
Solids, total suspendedmonthly average≤ 30 mg/Lall year007
Solids, total suspendeddaily maximum≤ 45 mg/Lall year007
Nitrogen, ammonia total [as N]monthly average≤ 2 mg/LMay–Oct007
Nitrogen, ammonia total [as N]monthly average≤ 5 mg/LJan, Feb, Mar, Apr, Nov, Dec007
Nitrogen, ammonia total [as N]daily maximum≤ 3 mg/LMay–Oct007
Nitrogen, ammonia total [as N]daily maximum≤ 7.5 mg/LJan, Feb, Mar, Apr, Nov, Dec007
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year007
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year007
Chlorine, total residualmonthly average≤ .011 mg/Lall year007
Chlorine, total residualdaily maximum≤ .019 mg/Lall year007
E. coli30-day geometric mean≤ 130 #/100mLall year007
E. coli7-day geometric mean≤ 240 #/100mLall year007
BOD, carbonaceous [5 day, 20 C]monthly average≤ 10 mg/Lall year007
BOD, carbonaceous [5 day, 20 C]daily maximum≤ 15 mg/Lall year007

How strict are these limits?

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

Same industry: the 10 Stone, Clay, Glass and Concrete Products permits in Kentucky.

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Your permit document is the final word. As JSON: /api/v1/permits/KY0090387 · MCP: https://passage-data.com/mcp