Passage Data · Check a report · Use it from your AI

Bituminous Materials

Asphalt Paving Mixtures And Blocks, Des Moines, Iowa. NPDES permit IA0073172, in force until Jul 31, 2028. Last 12 months: over a limit 3 times (last August 2026), 2 required values missing. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 15 days after each period: outfall 002 form A monthly (6 values), outfall 003 form A monthly (2 values)
Renewal application due: Feb 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file: September 2026
Oct 2024 – Sep 2025: 5 values over a limit, 0 required values missing, 2 of 24 reports late

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

Period ending	Parameter	Reported	Limit	Over by
March 2026	Solids, total suspended, 30-day average	17	≤ 15 mg/L	13%
March 2026	pH, daily maximum	9.4	≤ 9 SU	—
August 2026	Solids, total suspended, 30-day average	16	≤ 15 mg/L	7%

Limits in force (8)

Parameter	Statistic	Limit	Months	Outfall
pH	daily minimum	≥ 6.5 SU	all year	002
pH	daily maximum	≤ 9 SU	all year	002
Solids, total suspended	30-day average	≤ 15 mg/L	all year	002
Solids, total suspended	daily maximum	≤ 23 mg/L	all year	002
Oil & Grease	30-day average	≤ 10 mg/L	all year	002
Oil & Grease	daily maximum	≤ 15 mg/L	all year	002
Solids, total suspended	30-day average	≤ 15 mg/L	all year	003
Solids, total suspended	daily maximum	≤ 23 mg/L	all year	003

How strict are these limits?

Solids, total suspended, 30-day average 15 mg/L — stricter than 97% of 289 other minor industrial and other permits in Iowa; 1% have the same limit
Solids, total suspended, daily maximum 23 mg/L — stricter than 94% of 114 other minor industrial and other permits in Iowa; 2% have the same limit
pH, daily minimum at least 6.5 SU — stricter than 60% of 423 other minor industrial and other permits in Iowa; 39% have the same limit

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

Same industry: the 3 Petroleum Refining and Related Industries permits in Iowa.

Check this month's numbers Email me before each report is due

· Save this facility as a site · Superfund sites nearby · Your permits on one board

On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IA0073172 · MCP: https://passage-data.com/mcp