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Imerys Clays Inc.

Kaolin And Ball Clay, Sandersville, Georgia. NPDES permit GA0047309, in force until Apr 30, 2028. Last 12 months: over a limit 15 times (last August 2026), 790 required values missing, 6 of 24 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form 1 monthly (72 values), outfall 002 form 1 monthly (140 values)
Renewal application due
Nov 2, 2027 · 180 days before expiry; your permit may set another date
Last report on file
September 2026
Oct 2024 – Sep 2025
6 values over a limit, 212 required values missing, 7 of 24 reports late

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

All 15 values over a limit
Period endingOutfallParameterReportedLimitOver by
March 2026002Flow, in conduit or thru treatment plant, daily maximum4.2 MGD≤ .795 MGD428%
March 2026002Flow, in conduit or thru treatment plant, daily maximum4.2 MGD≤ .795 MGD428%
March 2026002Flow, in conduit or thru treatment plant, daily maximum4.2 MGD≤ 1.59 MGD164%
March 2026002Flow, in conduit or thru treatment plant, daily maximum4.2 MGD≤ 1.59 MGD164%
March 2026002Flow, in conduit or thru treatment plant, daily maximum4.2 MGD≤ 2.65 MGD58%
March 2026002Flow, in conduit or thru treatment plant, daily maximum4.2 MGD≤ 2.65 MGD58%
June 2026001Nitrogen, ammonia total [as N], daily average1.15 mg/L≤ 1 mg/L15%
June 2026002Flow, in conduit or thru treatment plant, daily maximum3.9 MGD≤ .795 MGD391%
June 2026002Flow, in conduit or thru treatment plant, daily maximum3.9 MGD≤ 1.59 MGD145%
June 2026002Flow, in conduit or thru treatment plant, daily maximum3.9 MGD≤ 2.65 MGD47%
July 2026002Flow, in conduit or thru treatment plant, daily maximum4.3 MGD≤ .795 MGD441%
July 2026002Flow, in conduit or thru treatment plant, daily maximum4.3 MGD≤ 1.59 MGD170%
July 2026002Flow, in conduit or thru treatment plant, daily maximum4.3 MGD≤ 2.65 MGD62%
August 2026002Phosphorus, total [as P], daily average1.77 mg/L≤ 1 mg/L77%
August 2026002Phosphorus, total [as P], daily maximum1.77 mg/L≤ 1.5 mg/L18%

Limits in force (220)

ParameterStatisticLimitMonthsOutfall
Turbiditydaily averagereport only (NTU)all year001
Turbiditydaily averagereport only (NTU)all year001
Turbiditydaily maximumreport only (NTU)all year001
Turbiditydaily maximumreport only (NTU)all year001
pHminimum≥ 6 SUall year001
pHminimum≥ 6 SUall year001
pHmaximum≤ 8.5 SUall year001
pHmaximum≤ 8.5 SUall year001
Solids, total suspendeddaily average≤ 25 mg/Lall year001
Solids, total suspendeddaily average≤ 25 mg/Lall year001
Solids, total suspendeddaily maximum≤ 50 mg/Lall year001
Solids, total suspendeddaily maximum≤ 50 mg/Lall year001
Oil & Greasedaily average≤ 10 mg/Lall year001
Oil & Greasedaily average≤ 10 mg/Lall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Nitrogen, organic total [as N]daily averagereport only (mg/L)all year001
Nitrogen, organic total [as N]daily averagereport only (mg/L)all year001
Nitrogen, organic total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, organic total [as N]daily maximumreport only (mg/L)all year001
Nitrogen, ammonia total [as N]daily average≤ 1 mg/Lall year001
Nitrogen, ammonia total [as N]daily average≤ 1 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 1.5 mg/Lall year001
Nitrogen, ammonia total [as N]daily maximum≤ 1.5 mg/Lall year001
Nitrite + Nitrate total [as N]daily averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]daily averagereport only (mg/L)all year001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year001
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]daily averagereport only (mg/L)all year001
Phosphorus, total [as P]daily averagereport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Phosphorus, total [as P]daily maximumreport only (mg/L)all year001
Cadmium, total [as Cd]daily averagereport only (mg/L)all year001
Cadmium, total [as Cd]daily averagereport only (mg/L)all year001
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year001
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year001
Copper, total [as Cu]daily average≤ .01 mg/Lall year001
Copper, total [as Cu]daily average≤ .01 mg/Lall year001
Copper, total [as Cu]daily maximum≤ .015 mg/Lall year001
Copper, total [as Cu]daily maximum≤ .015 mg/Lall year001
Copper, total [as Cu]daily average≤ .36 lb/dall year001
Copper, total [as Cu]daily average≤ .36 lb/dall year001
Copper, total [as Cu]daily maximum≤ .54 lb/dall year001
Copper, total [as Cu]daily maximum≤ .54 lb/dall year001
Zinc, total [as Zn]daily averagereport only (mg/L)all year001
Zinc, total [as Zn]daily averagereport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Zinc, total [as Zn]daily maximumreport only (mg/L)all year001
Selenium, total [as Se]daily average≤ .005 mg/Lall year001
Selenium, total [as Se]daily average≤ .005 mg/Lall year001
Selenium, total [as Se]daily averagereport only (mg/L)all year001
Selenium, total [as Se]daily averagereport only (mg/L)all year001
Selenium, total [as Se]daily maximum≤ .008 mg/Lall year001
Selenium, total [as Se]daily maximum≤ .008 mg/Lall year001
Selenium, total [as Se]daily maximumreport only (mg/L)all year001
Selenium, total [as Se]daily maximumreport only (mg/L)all year001
Selenium, total [as Se]daily average≤ .18 lb/dall year001
Selenium, total [as Se]daily average≤ .18 lb/dall year001
Selenium, total [as Se]daily averagereport only (lb/d)all year001
Selenium, total [as Se]daily averagereport only (lb/d)all year001
Selenium, total [as Se]daily maximum≤ .27 lb/dall year001
Selenium, total [as Se]daily maximum≤ .27 lb/dall year001
Selenium, total [as Se]daily maximumreport only (lb/d)all year001
Selenium, total [as Se]daily maximumreport only (lb/d)all year001
Nitrogen, total Kjeldahldaily averagereport only (mg/L)all year001
Nitrogen, total Kjeldahldaily averagereport only (mg/L)all year001
Nitrogen, total Kjeldahldaily maximumreport only (mg/L)all year001
Nitrogen, total Kjeldahldaily maximumreport only (mg/L)all year001
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year001
Phosphorous, in total orthophosphatedaily averagereport only (mg/L)all year001
Phosphorous, in total orthophosphatedaily averagereport only (mg/L)all year001
Phosphorous, in total orthophosphatedaily maximumreport only (mg/L)all year001
Phosphorous, in total orthophosphatedaily maximumreport only (mg/L)all year001
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiadaily average≤ 100 %all year001
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiadaily average≤ 100 %all year001
Noel Statre 7Day Chronic Pimephalesdaily average≤ 100 %all year001
Noel Statre 7Day Chronic Pimephalesdaily average≤ 100 %all year001
Turbiditydaily averagereport only (NTU)all year002
Turbiditydaily averagereport only (NTU)all year002
Turbiditydaily maximumreport only (NTU)all year002
Turbiditydaily maximumreport only (NTU)all year002
pHminimum≥ 6 SUall year002
pHminimum≥ 6 SUall year002
pHmaximum≤ 8.5 SUall year002
pHmaximum≤ 8.5 SUall year002
Solids, total suspendeddaily average≤ 25 mg/Lall year002
Solids, total suspendeddaily average≤ 25 mg/Lall year002
Solids, total suspendeddaily maximum≤ 50 mg/Lall year002
Solids, total suspendeddaily maximum≤ 50 mg/Lall year002
Oil & Greasedaily average≤ 10 mg/Lall year002
Oil & Greasedaily average≤ 10 mg/Lall year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Oil & Greasedaily maximum≤ 15 mg/Lall year002
Nitrogen, organic total [as N]daily averagereport only (mg/L)all year002
Nitrogen, organic total [as N]daily averagereport only (mg/L)all year002
Nitrogen, organic total [as N]daily maximumreport only (mg/L)all year002
Nitrogen, organic total [as N]daily maximumreport only (mg/L)all year002
Nitrogen, ammonia total [as N]daily averagereport only (mg/L)all year002
Nitrogen, ammonia total [as N]daily averagereport only (mg/L)all year002
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year002
Nitrogen, ammonia total [as N]daily maximumreport only (mg/L)all year002
Nitrite + Nitrate total [as N]daily averagereport only (mg/L)all year002
Nitrite + Nitrate total [as N]daily averagereport only (mg/L)all year002
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year002
Nitrite + Nitrate total [as N]daily maximumreport only (mg/L)all year002
Phosphorus, total [as P]daily average≤ 1 mg/Lall year002
Phosphorus, total [as P]daily average≤ 1 mg/Lall year002
Phosphorus, total [as P]daily maximum≤ 1.5 mg/Lall year002
Phosphorus, total [as P]daily maximum≤ 1.5 mg/Lall year002
Cadmium, total [as Cd]daily averagereport only (mg/L)all year002
Cadmium, total [as Cd]daily averagereport only (mg/L)all year002
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year002
Cadmium, total [as Cd]daily maximumreport only (mg/L)all year002
Copper, total [as Cu]daily average≤ .013 mg/Lall year002
Copper, total [as Cu]daily average≤ .013 mg/Lall year002
Copper, total [as Cu]daily maximum≤ .02 mg/Lall year002
Copper, total [as Cu]daily maximum≤ .02 mg/Lall year002
Copper, total [as Cu]daily average≤ .467 lb/dall year002
Copper, total [as Cu]daily average≤ .467 lb/dall year002
Copper, total [as Cu]daily maximum≤ .701 lb/dall year002
Copper, total [as Cu]daily maximum≤ .701 lb/dall year002
Copper, total [as Cu]daily averagereport only (mg/L)all year002
Copper, total [as Cu]daily averagereport only (mg/L)all year002
Copper, total [as Cu]daily maximumreport only (mg/L)all year002
Copper, total [as Cu]daily maximumreport only (mg/L)all year002
Copper, total [as Cu]daily averagereport only (lb/d)all year002
Copper, total [as Cu]daily averagereport only (lb/d)all year002
Copper, total [as Cu]daily maximumreport only (lb/d)all year002
Copper, total [as Cu]daily maximumreport only (lb/d)all year002
Copper, total [as Cu]daily averagereport only (mg/L)all year002
Copper, total [as Cu]daily averagereport only (mg/L)all year002
Copper, total [as Cu]daily maximumreport only (mg/L)all year002
Copper, total [as Cu]daily maximumreport only (mg/L)all year002
Copper, total [as Cu]daily averagereport only (lb/d)all year002
Copper, total [as Cu]daily averagereport only (lb/d)all year002
Copper, total [as Cu]daily maximumreport only (lb/d)all year002
Copper, total [as Cu]daily maximumreport only (lb/d)all year002
Copper, total [as Cu]daily averagereport only (mg/L)all year002
Copper, total [as Cu]daily averagereport only (mg/L)all year002
Copper, total [as Cu]daily maximumreport only (mg/L)all year002
Copper, total [as Cu]daily maximumreport only (mg/L)all year002
Copper, total [as Cu]daily averagereport only (lb/d)all year002
Copper, total [as Cu]daily averagereport only (lb/d)all year002
Copper, total [as Cu]daily maximumreport only (lb/d)all year002
Copper, total [as Cu]daily maximumreport only (lb/d)all year002
Copper, total [as Cu]daily averagereport only (mg/L)all year002
Copper, total [as Cu]daily averagereport only (mg/L)all year002
Copper, total [as Cu]daily maximumreport only (mg/L)all year002
Copper, total [as Cu]daily maximumreport only (mg/L)all year002
Copper, total [as Cu]daily averagereport only (lb/d)all year002
Copper, total [as Cu]daily averagereport only (lb/d)all year002
Copper, total [as Cu]daily maximumreport only (lb/d)all year002
Copper, total [as Cu]daily maximumreport only (lb/d)all year002
Zinc, total [as Zn]daily averagereport only (mg/L)all year002
Zinc, total [as Zn]daily averagereport only (mg/L)all year002
Zinc, total [as Zn]daily maximumreport only (mg/L)all year002
Zinc, total [as Zn]daily maximumreport only (mg/L)all year002
Selenium, total [as Se]daily average≤ .007 mg/Lall year002
Selenium, total [as Se]daily average≤ .007 mg/Lall year002
Selenium, total [as Se]daily maximum≤ .011 mg/Lall year002
Selenium, total [as Se]daily maximum≤ .011 mg/Lall year002
Selenium, total [as Se]daily average≤ .239 lb/dall year002
Selenium, total [as Se]daily average≤ .239 lb/dall year002
Selenium, total [as Se]daily maximum≤ .359 lb/dall year002
Selenium, total [as Se]daily maximum≤ .359 lb/dall year002
Selenium, total [as Se]daily averagereport only (mg/L)all year002
Selenium, total [as Se]daily averagereport only (mg/L)all year002
Selenium, total [as Se]daily maximumreport only (mg/L)all year002
Selenium, total [as Se]daily maximumreport only (mg/L)all year002
Selenium, total [as Se]daily averagereport only (lb/d)all year002
Selenium, total [as Se]daily averagereport only (lb/d)all year002
Selenium, total [as Se]daily maximumreport only (lb/d)all year002
Selenium, total [as Se]daily maximumreport only (lb/d)all year002
Selenium, total [as Se]daily averagereport only (mg/L)all year002
Selenium, total [as Se]daily averagereport only (mg/L)all year002
Selenium, total [as Se]daily maximumreport only (mg/L)all year002
Selenium, total [as Se]daily maximumreport only (mg/L)all year002
Selenium, total [as Se]daily averagereport only (lb/d)all year002
Selenium, total [as Se]daily averagereport only (lb/d)all year002
Selenium, total [as Se]daily maximumreport only (lb/d)all year002
Selenium, total [as Se]daily maximumreport only (lb/d)all year002
Selenium, total [as Se]daily averagereport only (mg/L)all year002
Selenium, total [as Se]daily averagereport only (mg/L)all year002
Selenium, total [as Se]daily maximumreport only (mg/L)all year002
Selenium, total [as Se]daily maximumreport only (mg/L)all year002
Selenium, total [as Se]daily averagereport only (lb/d)all year002
Selenium, total [as Se]daily averagereport only (lb/d)all year002
Selenium, total [as Se]daily maximumreport only (lb/d)all year002
Selenium, total [as Se]daily maximumreport only (lb/d)all year002
Nitrogen, total Kjeldahldaily averagereport only (mg/L)all year002
Nitrogen, total Kjeldahldaily averagereport only (mg/L)all year002
Nitrogen, total Kjeldahldaily maximumreport only (mg/L)all year002
Nitrogen, total Kjeldahldaily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximum≤ 4.3 MGDall year002
Flow, in conduit or thru treatment plantdaily maximum≤ 4.3 MGDall year002
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximum≤ .795 MGDall year002
Flow, in conduit or thru treatment plantdaily maximum≤ .795 MGDall year002
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximum≤ 1.59 MGDall year002
Flow, in conduit or thru treatment plantdaily maximum≤ 1.59 MGDall year002
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily averagereport only (MGD)all year002
Flow, in conduit or thru treatment plantdaily maximum≤ 2.65 MGDall year002
Flow, in conduit or thru treatment plantdaily maximum≤ 2.65 MGDall year002
Phosphorous, in total orthophosphatedaily averagereport only (mg/L)all year002
Phosphorous, in total orthophosphatedaily averagereport only (mg/L)all year002
Phosphorous, in total orthophosphatedaily maximumreport only (mg/L)all year002
Phosphorous, in total orthophosphatedaily maximumreport only (mg/L)all year002
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiadaily maximum≤ 69 %all year002
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubiadaily maximum≤ 69 %all year002
Noel Statre 7Day Chronic Pimephalesdaily maximum≤ 69 %all year002
Noel Statre 7Day Chronic Pimephalesdaily maximum≤ 69 %all year002

How strict are these limits?

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

Same industry: the 55 Mining and Quarrying of Nonmetallic Minerals permits in Georgia.

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