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Sterling Specialty Chemicals, LLC

Chemical Preparations, Sand Springs, Oklahoma. NPDES permit OK0000388, in force until Nov 30, 2026. Last 12 months: over a limit 2 times (last May 2026), 6 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due
About 15 days after each period: outfall 001 form A monthly (12 values), outfall 101 form A monthly (1 value)
Renewal application due
Jun 3, 2026 · 180 days before expiry; your permit may set another date
Last report on file
August 2026
Oct 2024 – Sep 2025
3 values over a limit, 0 required values missing, 2 of 24 reports late

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

Period endingParameterReportedLimitOver by
February 2026pH, maximum9.49 SU≤ 9 SU—
May 2026Solids, total suspended, daily maximum51.2 mg/L≤ 45 mg/L14%

Limits in force (15)

ParameterStatisticLimitMonthsOutfall
pHminimum≥ 6.5 SUall year001
pHmaximum≤ 9 SUall year001
Solids, total suspendedmonthly averagereport only (mg/L)all year001
Solids, total suspendeddaily maximum≤ 45 mg/Lall year001
Oil & Greasemonthly averagereport only (mg/L)all year001
Oil & Greasedaily maximum≤ 15 mg/Lall year001
Carbon, tot organic [TOC]monthly averagereport only (mg/L)all year001
Carbon, tot organic [TOC]daily maximum≤ 50 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
E. coligeometric mean≤ 126 CFU/100mLMay–Sep001
E. coligeometric mean≤ 630 CFU/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
E. colidaily maximum≤ 406 CFU/100mLMay–Sep001
E. colidaily maximum≤ 2030 CFU/100mLJan, Feb, Mar, Apr, Oct, Nov, Dec001
Oxidants, total residualinstantaneous maximum≤ .099 mg/Lall year101

How strict are these limits?

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

Same industry: the 11 Chemicals and Allied Products permits in Oklahoma.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/OK0000388 · MCP: https://passage-data.com/mcp