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City of Des Moines

Amusement And Recreation, Des Moines, Iowa. NPDES permit IA0076511, in force until May 31, 2027. Last 12 months: no values over a limit, 10 required values missing, 7 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 15 days after each period: form A monthly (10 values)
Renewal application due: Dec 2, 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, 3 of 12 reports late

Limits in force (10)

Parameter	Statistic	Limit	Months
pH	daily minimum	≥ 6.5 SU	all year
pH	daily maximum	≤ 9 SU	all year
Solids, total suspended	30-day average	≤ 30 mg/L	all year
Solids, total suspended	daily maximum	≤ 45 mg/L	all year
Solids, total suspended	30-day average	≤ 7.83 lb/d	all year
Solids, total suspended	daily maximum	≤ 11.75 lb/d	all year
Chlorine, total residual	30-day average	≤ .013 mg/L	all year
Chlorine, total residual	daily maximum	≤ .029 mg/L	all year
Chlorine, total residual	30-day average	≤ .019 lb/d	all year
Chlorine, total residual	daily maximum	≤ .043 lb/d	all year

New limits from May 1, 2027

Parameter	New limit	New or tighter	Median, last 12 months	× new limit
Chloride [as Cl], 30-day average	389 mg/L	new	—	—
Chloride [as Cl], 30-day average	577 lb/d	new	—	—
Chloride [as Cl], daily maximum	629 mg/L	new	—	—
Chloride [as Cl], daily maximum	934 lb/d	new	—	—

How strict are these limits?

Chlorine, total residual, 30-day average .013 mg/L — stricter than 67% of 106 other minor industrial and other permits in Iowa; 2% have the same limit
Chlorine, total residual, daily maximum .029 mg/L — stricter than 61% of 107 other minor industrial and other permits in Iowa; 1% 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 11 Amusement and Recreation Services permits in Iowa.

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/IA0076511 · MCP: https://passage-data.com/mcp