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GP Industrial Plasters

Gypsum Products, Blue Rapids, Kansas. NPDES permit KS0002135, in force until May 31, 2029. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 29 days after each period: outfall 001 form A monthly (9 values), outfall 001 form B monthly (6 values), outfall 002 form A monthly (6 values), outfall 004 form A quarterly (1 value), outfall M01 form W quarterly (1 value), outfall M02 form W quarterly (1 value), and 1 more form
Last report on file
September 2026
Oct 2024 – Sep 2025
0 values over a limit, 0 required values missing, 0 of 47 reports late

Limits in force (25)

ParameterStatisticLimitMonthsOutfall
BOD, 5-day, 20 deg. Cmonthly average≤ 30 mg/Lall year001
BOD, 5-day, 20 deg. Cdaily maximum≤ 45 mg/Lall year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
pHdaily minimum≥ 6 SUall year001
pHdaily maximum≤ 9 SUall year001
Solids, total suspendedmonthly average≤ 80 mg/Lall year001
Solids, total suspendeddaily maximum≤ 120 mg/Lall year001
Solids, total suspendeddaily maximumreport 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
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year001
Sulfate, total [as SO4]daily maximumreport only (mg/L)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
pHdaily minimum≥ 6 SUall year002
pHdaily maximum≤ 9 SUall year002
Solids, total suspendeddaily maximumreport only (mg/L)all year002
Phosphorus, total [as P]daily maximumreport only (mg/L)all year002
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year002
Flow, in conduit or thru treatment plantdaily maximumreport only (MGD)all year002
Sulfate, total [as SO4]daily maximumreport only (mg/L)all year004
Sulfate, total [as SO4]daily maximumreport only (mg/L)all yearM01
Sulfate, total [as SO4]daily maximumreport only (mg/L)all yearM02
Sulfate, total [as SO4]daily maximumreport only (mg/L)all yearM03

How strict are these limits?

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

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/KS0002135 · MCP: https://passage-data.com/mcp