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Arkansas City, City of

Water Supply, Arkansas City, Kansas. NPDES permit KS0100781, in force until Dec 31, 2026. Last 12 months: over a limit once (last March 2026). Source: EPA ECHO, Oct 22, 2026.

Reports due: About 29 days after each period: outfall 001 form A monthly (4 values), outfall 002 form A monthly (4 values)
Renewal application due: Jul 4, 2026 · 180 days before expiry; your permit may set another date
Last report on file: August 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
March 2026	Chlorine, total residual, daily maximum	120 ug/L	≤ 100 ug/L	20%

Limits in force (8)

Parameter	Statistic	Limit	Months	Outfall
pH	monthly average	report only (SU)	all year	001
Solids, total suspended	daily maximum	≤ 100 mg/L	all year	001
Chloride [as Cl]	monthly average	report only (mg/L)	all year	001
Flow, in conduit or thru treatment plant	monthly average	report only (MGD)	all year	001
pH	daily minimum	≥ 6 SU	all year	002
pH	daily maximum	≤ 9 SU	all year	002
Solids, total suspended	daily maximum	≤ 100 mg/L	all year	002
Chlorine, total residual	daily maximum	≤ 100 ug/L	all year	002

How strict are these limits?

Chlorine, total residual, daily maximum 100 ug/L — stricter than 13% of 81 other minor industrial and other permits in Kansas; 86% have the same limit

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

Same industry: the 72 Water Supply permits in Kansas.

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

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On EPA ECHO: Facility report · DMR history

Your permit document is the final word. As JSON: /api/v1/permits/KS0100781 · MCP: https://passage-data.com/mcp