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Coreslab Structures Inc(Omaha)

Concrete Products, La Platte, Nebraska. NPDES permit NE0124052 expired Dec 31, 2025; its limits still apply. Last 12 months: over a limit 16 times (last June 2026), 5 required values missing, 69 of 80 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 007 form M quarterly (2 values), outfall 007 form Q quarterly (10 values), outfall 008 form M quarterly (2 values), outfall 008 form Q quarterly (8 values), outfall 009 form M quarterly (2 values), outfall 009 form Q quarterly (8 values), and 10 more forms
Last report on file
June 2026
Oct 2024 – Sep 2025
14 values over a limit, 32 required values missing, 78 of 105 reports late

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

All 16 values over a limit
Period endingOutfallParameterReportedLimitOver by
December 2025007Iron, total [as Fe], daily maximum37.51 mg/L≤ 12.85 mg/L192%
December 2025007Manganese, total [as Mn], daily maximum2.56 mg/L≤ 2.45 mg/L4%
December 2025008Iron, total [as Fe], daily maximum15.2 mg/L≤ 12.85 mg/L18%
December 2025008Manganese, total [as Mn], daily maximum2.67 mg/L≤ 2.45 mg/L9%
December 2025011Iron, total [as Fe], daily maximum17.53 mg/L≤ 12.85 mg/L36%
December 2025011Manganese, total [as Mn], daily maximum2.59 mg/L≤ 2.45 mg/L6%
March 2026007Iron, total [as Fe], daily maximum16.57 mg/L≤ 12.85 mg/L29%
March 2026008Iron, total [as Fe], daily maximum15.88 mg/L≤ 12.85 mg/L24%
March 2026008Manganese, total [as Mn], daily maximum2.8 mg/L≤ 2.45 mg/L14%
March 2026008Solids, total dissolved [TDS], daily maximum642 mg/L≤ 617 mg/L4%
March 2026011Iron, total [as Fe], daily maximum17.53 mg/L≤ 12.85 mg/L36%
March 2026011Manganese, total [as Mn], daily maximum2.59 mg/L≤ 2.45 mg/L6%
June 2026007Iron, total [as Fe], daily maximum12.99 mg/L≤ 12.85 mg/L1%
June 2026007Manganese, total [as Mn], daily maximum2.6 mg/L≤ 2.45 mg/L6%
June 2026007Solids, total dissolved [TDS], daily maximum642 mg/L≤ 617 mg/L4%
June 2026008Solids, total dissolved [TDS], daily maximum638 mg/L≤ 617 mg/L3%

Limits in force (79)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6.5 SUall year007
pHdaily maximum≤ 8.5 SUall year007
Chloride [as Cl]monthly averagereport only (mg/L)all year007
Chloride [as Cl]daily maximum≤ 250 mg/Lall year007
Iron, total [as Fe]monthly averagereport only (mg/L)all year007
Iron, total [as Fe]daily maximum≤ 12.85 mg/Lall year007
Manganese, total [as Mn]monthly averagereport only (mg/L)all year007
Manganese, total [as Mn]daily maximum≤ 2.45 mg/Lall year007
Hydrocarbons, total gas chromatographdaily maximum≤ 10 mg/Lall year007
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year007
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year007
Solids, total dissolved [TDS]monthly averagereport only (mg/L)all year007
Solids, total dissolved [TDS]daily maximum≤ 617 mg/Lall year007
pHminimum≥ 6.5 SUall year008
pHdaily maximum≤ 8.5 SUall year008
Iron, total [as Fe]monthly averagereport only (mg/L)all year008
Iron, total [as Fe]daily maximum≤ 12.85 mg/Lall year008
Manganese, total [as Mn]monthly averagereport only (mg/L)all year008
Manganese, total [as Mn]daily maximum≤ 2.45 mg/Lall year008
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year008
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year008
Solids, total dissolved [TDS]monthly averagereport only (mg/L)all year008
Solids, total dissolved [TDS]daily maximum≤ 617 mg/Lall year008
pHminimum≥ 6.5 SUall year009
pHdaily maximum≤ 8.5 SUall year009
Iron, total [as Fe]monthly averagereport only (mg/L)all year009
Iron, total [as Fe]daily maximum≤ 12.85 mg/Lall year009
Manganese, total [as Mn]monthly averagereport only (mg/L)all year009
Manganese, total [as Mn]daily maximum≤ 2.45 mg/Lall year009
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year009
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year009
Solids, total dissolved [TDS]monthly averagereport only (mg/L)all year009
Solids, total dissolved [TDS]daily maximum≤ 617 mg/Lall year009
pHminimum≥ 6.5 SUall year010
pHdaily maximum≤ 8.5 SUall year010
Solids, total suspendedmonthly averagereport only (mg/L)all year010
Solids, total suspendeddaily maximumreport only (mg/L)all year010
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year010
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year010
Solids, total dissolved [TDS]monthly averagereport only (mg/L)all year010
Solids, total dissolved [TDS]daily maximum≤ 617 mg/Lall year010
pHminimum≥ 6.5 SUall year011
pHdaily maximum≤ 8.5 SUall year011
Iron, total [as Fe]monthly averagereport only (mg/L)all year011
Iron, total [as Fe]daily maximum≤ 12.85 mg/Lall year011
Manganese, total [as Mn]monthly averagereport only (mg/L)all year011
Manganese, total [as Mn]daily maximum≤ 2.45 mg/Lall year011
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year011
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year011
Solids, total dissolved [TDS]monthly averagereport only (mg/L)all year011
Solids, total dissolved [TDS]daily maximum≤ 617 mg/Lall year011
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year012
Temperature, water deg. fahrenheitdaily maximum≤ 90 deg Fall year012
Conductivitymonthly averagereport only (umho/cm)all year012
Conductivitydaily maximumreport only (umho/cm)all year012
pHminimum≥ 6.5 SUall year012
pHdaily maximum≤ 9 SUall year012
Solids, total suspendedmonthly averagereport only (mg/L)all year012
Solids, total suspendeddaily maximumreport only (mg/L)all year012
Chloride [as Cl]monthly averagereport only (mg/L)all year012
Chloride [as Cl]daily maximumreport only (mg/L)all year012
Sulfate, dissolved [as SO4]monthly averagereport only (mg/L)all year012
Sulfate, dissolved [as SO4]daily maximumreport only (mg/L)all year012
Iron, total [as Fe]monthly averagereport only (mg/L)all year012
Iron, total [as Fe]daily maximumreport only (mg/L)all year012
Manganese, total [as Mn]monthly averagereport only (mg/L)all year012
Manganese, total [as Mn]daily maximumreport only (mg/L)all year012
Hydrocarbons, total gas chromatographmonthly averagereport only (mg/L)all year012
Hydrocarbons, total gas chromatographdaily maximum≤ 10 mg/Lall year012
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year012
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year012
Chloride [as Cl]daily minimumreport only (mg/L)all yearRAW
Chloride [as Cl]daily maximumreport only (mg/L)all yearRAW
Iron, total [as Fe]daily minimumreport only (mg/L)all yearRAW
Iron, total [as Fe]daily maximumreport only (mg/L)all yearRAW
Manganese, total [as Mn]daily minimumreport only (mg/L)all yearRAW
Manganese, total [as Mn]daily maximumreport only (mg/L)all yearRAW
Solids, total dissolved [TDS]daily minimumreport only (mg/L)all yearRAW
Solids, total dissolved [TDS]daily maximumreport only (mg/L)all yearRAW

How strict are these limits?

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

Same industry: the 5 Stone, Clay, Glass and Concrete Products permits in Nebraska.

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Your permit document is the final word. As JSON: /api/v1/permits/NE0124052 · MCP: https://passage-data.com/mcp