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Nustar Pipeline Operating Partnership L.P.

Refined Petroleum Pipelines, Council Bluffs, Iowa. NPDES permit IA0046752, in force until Feb 28, 2027. Last 12 months: over a limit 6 times (last September 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due: About 15 days after each period: outfall 001 form A monthly (8 values), outfall 005 form A monthly (8 values)
Renewal application due: Sep 1, 2026 · 180 days before expiry; your permit may set another date
Last report on file: September 2026
Oct 2024 – Sep 2025: 0 values over a limit, 0 required values missing, 0 of 24 reports late

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

Period ending	Parameter	Reported	Limit	Over by
June 2026	Solids, total suspended, 30-day average	33	≤ 30 mg/L	10%
July 2026	Solids, total suspended, 30-day average	32	≤ 30 mg/L	7%
August 2026	Solids, total suspended, 30-day average	71	≤ 30 mg/L	137%
August 2026	Solids, total suspended, daily maximum	71	≤ 45 mg/L	58%
September 2026	Benzene, daily maximum	.0077	≤ .005 mg/L	54%
September 2026	Solids, total suspended, 30-day average	32.5	≤ 30 mg/L	8%

Limits in force (16)

Parameter	Statistic	Limit	Months	Outfall
pH	daily minimum	≥ 6 SU	all year	001
pH	daily maximum	≤ 9 SU	all year	001
Solids, total suspended	30-day average	≤ 30 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 45 mg/L	all year	001
Oil & Grease	30-day average	≤ 10 mg/L	all year	001
Oil & Grease	daily maximum	≤ 15 mg/L	all year	001
Benzene	daily maximum	≤ .005 mg/L	all year	001
Benzene, toluene, xylene in combination	daily maximum	≤ .1 mg/L	all year	001
pH	daily minimum	≥ 6 SU	all year	005
pH	daily maximum	≤ 9 SU	all year	005
Solids, total suspended	30-day average	≤ 30 mg/L	all year	005
Solids, total suspended	daily maximum	≤ 45 mg/L	all year	005
Oil & Grease	30-day average	≤ 10 mg/L	all year	005
Oil & Grease	daily maximum	≤ 15 mg/L	all year	005
Benzene	daily maximum	≤ .005 mg/L	all year	005
Benzene, toluene, xylene in combination	daily maximum	≤ .1 mg/L	all year	005

How strict are these limits?

Benzene, daily maximum .005 mg/L — stricter than 76% of 147 other minor industrial and other permits nationwide; 15% have the same limit
Solids, total suspended, 30-day average 30 mg/L — stricter than 40% of 289 other minor industrial and other permits in Iowa; 56% have the same limit
Oil & Grease, daily maximum 15 mg/L — stricter than 17% of 41 other minor industrial and other permits in Iowa; 76% have the same limit

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IA0046752 · MCP: https://passage-data.com/mcp