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Ash Grove Cement Co

Crushed And Broken Limestone, Louisville, Nebraska. NPDES permit NE0000787, in force until Mar 31, 2028. Last 12 months: no values over a limit, 6 of 20 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 28 days after each period: outfall 003 form Q quarterly (8 values), outfall 004 form Q quarterly (6 values), outfall 006 form Q quarterly (6 values), outfall 007 form Q quarterly (6 values), outfall 008 form Q quarterly (6 values), outfall 009 form Q quarterly (6 values), and 2 more forms
Renewal application due
Oct 3, 2027 · 180 days before expiry; your permit may set another date
Last report on file
June 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 27 reports late

Limits in force (42)

ParameterStatisticLimitMonthsOutfall
Temperature, water deg. fahrenheitmonthly averagereport only (deg F)all year003
Temperature, water deg. fahrenheitdaily maximum≤ 90 deg Fall year003
pHdaily minimum≥ 6.5 SUall year003
pHdaily maximum≤ 9 SUall year003
Solids, total suspendedmonthly averagereport only (mg/L)all year003
Solids, total suspendeddaily maximum≤ 50 mg/Lall year003
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year003
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year003
pHdaily minimum≥ 6.5 SUall year004
pHdaily maximum≤ 9 SUall year004
Solids, total suspendedmonthly averagereport only (mg/L)all year004
Solids, total suspendeddaily maximum≤ 50 mg/Lall year004
Flow, in conduit or thru treatment plantmonthly averagereport only (MGD)all year004
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year004
pHdaily minimum≥ 6.5 SUall year006
pHdaily maximum≤ 9 SUall year006
Solids, total suspendedmonthly average≤ 30 mg/Lall year006
Solids, total suspendeddaily maximum≤ 45 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
pHdaily minimum≥ 6.5 SUall year007
pHdaily maximum≤ 9 SUall year007
Solids, total suspendedmonthly average≤ 30 mg/Lall year007
Solids, total suspendeddaily maximum≤ 45 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
pHdaily minimum≥ 6.5 SUall year008
pHdaily maximum≤ 9 SUall year008
Solids, total suspendedmonthly average≤ 30 mg/Lall year008
Solids, total suspendeddaily maximum≤ 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
pHdaily minimum≥ 6.5 SUall year009
pHdaily maximum≤ 9 SUall year009
Solids, total suspendedmonthly averagereport only (mg/L)all year009
Solids, total suspendeddaily maximum≤ 50 mg/Lall year009
Arsenic, dissolved [as As]monthly averagereport only (ug/L)all year009
Arsenic, dissolved [as As]daily maximumreport only (ug/L)all year009
Selenium, dissolved [as Se]monthly averagereport only (mg/L)all year009
Selenium, dissolved [as Se]daily maximumreport only (mg/L)all 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

How strict are these limits?

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

Same industry: the 11 Mining and Quarrying of Nonmetallic Minerals permits in Nebraska.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/NE0000787 · MCP: https://passage-data.com/mcp