Nextera Energy Resources — NPDES permit IA0003727: limits, due date and EPA's record

Electric Services, major discharger, Palo, Iowa. NPDES permit IA0003727, in force until Feb 28, 2027. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Limits in force (21)

Parameter	Statistic	Limit	Months	Outfall
pH	daily minimum	≥ 6 SU	all year	002
pH	daily maximum	≤ 9 SU	all year	002
Solids, total suspended	30-day average	≤ 30 mg/L	all year	002
Solids, total suspended	7-day average	≤ 45 mg/L	all year	002
Solids, total suspended	30-day average	≤ 14 lb/d	all year	002
Solids, total suspended	7-day average	≤ 20 lb/d	all year	002
Nitrogen, total [as N]	30-day average	≤ 4.9 lb/d	all year	002
Nitrogen, total [as N]	daily maximum	≤ 8.1 lb/d	all year	002
Chlorine, total residual	30-day average	≤ .053 mg/L	all year	002
Chlorine, total residual	daily maximum	≤ .053 mg/L	all year	002
Chlorine, total residual	30-day average	≤ .024 lb/d	all year	002
Chlorine, total residual	daily maximum	≤ .024 lb/d	all year	002
E. coli	30-day average	≤ 126 #/100mL	Mar–Nov	002
BOD, carbonaceous [5 day, 20 C]	30-day average	≤ 25 mg/L	all year	002
BOD, carbonaceous [5 day, 20 C]	7-day average	≤ 40 mg/L	all year	002
BOD, carbonaceous [5 day, 20 C]	30-day average	≤ 11 lb/d	all year	002
BOD, carbonaceous [5 day, 20 C]	7-day average	≤ 18 lb/d	all year	002
pH	daily minimum	≥ 6.4 SU	all year	006
pH	daily maximum	≤ 9 SU	all year	006
Toxicity [acute], Ceriodaphnia dubia	daily maximum	≤ 1 N=0;Y=1	all year	006
Toxicity [acute], Pimephales promelas [Fathead Minnow]	daily maximum	≤ 1 N=0;Y=1	all year	006

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/IA0003727 · MCP: https://passage-data.com/mcp