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City of Saluda

Sewage treatment plant, Saluda, North Carolina. NPDES permit NC0028975, in force until Jul 31, 2028. Last 12 months: over a limit 14 times (last May 2026), 1 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

Reports due: About 31 days after each period: form M monthly (20 values)
Renewal application due: Feb 2, 2028 · 180 days before expiry; your permit may set another date
Last report on file: August 2026
Oct 2024 – Sep 2025: 4 values over a limit, 0 required values missing, 2 of 12 reports late

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

All 14 values over a limit

Period ending	Parameter	Reported	Limit	Over by
October 2025	Flow, in conduit or thru treatment plant, 30-day average	.1148 MGD	≤ .1 MGD	15%
November 2025	Flow, in conduit or thru treatment plant, 30-day average	.1226 MGD	≤ .1 MGD	23%
December 2025	Flow, in conduit or thru treatment plant, 30-day average	.122 MGD	≤ .1 MGD	22%
January 2026	Flow, in conduit or thru treatment plant, 30-day average	.1234 MGD	≤ .1 MGD	23%
February 2026	Flow, in conduit or thru treatment plant, 30-day average	5.0968 MGD	≤ .1 MGD	4997%
March 2026	Flow, in conduit or thru treatment plant, 30-day average	.1559 MGD	≤ .1 MGD	56%
May 2026	BOD, 5-day, 20 deg. C, 30-day average	36.5 mg/L	≤ 30 mg/L	22%
May 2026	BOD, 5-day, 20 deg. C, 7-day average	80 mg/L	≤ 45 mg/L	78%
May 2026	Coliform, fecal MF, MFC broth, 44.5 C, weekly geometric mean	2750 #/100mL	≤ 400 #/100mL	588%
May 2026	Nitrogen, ammonia total [as N], 30-day average	15.9182 mg/L	≤ 2.4 mg/L	563%
May 2026	Nitrogen, ammonia total [as N], 7-day average	36 mg/L	≤ 7.2 mg/L	400%
May 2026	Oxygen, dissolved [DO], daily minimum	2.83 mg/L	≥ 5 mg/L	43%
May 2026	Solids, total suspended, 30-day average	36.55 mg/L	≤ 30 mg/L	22%
May 2026	Solids, total suspended, 7-day average	79 mg/L	≤ 45 mg/L	76%

Limits in force (22)

Parameter	Statistic	Limit	Months
Temperature, water deg. centigrade	daily maximum	report only (deg C)	all year
Temperature, water deg. centigrade	daily maximum	report only (deg C)	all year
Temperature, water deg. centigrade	daily maximum	report only (deg C)	all year
Oxygen, dissolved [DO]	daily minimum	≥ 5 mg/L	all year
Oxygen, dissolved [DO]	daily maximum	report only (mg/L)	all year
Oxygen, dissolved [DO]	daily maximum	report only (mg/L)	all year
BOD, 5-day, 20 deg. C	7-day average	≤ 45 mg/L	all year
BOD, 5-day, 20 deg. C	30-day average	≤ 30 mg/L	all year
BOD, 5-day, 20 deg. C	daily maximum	report only (mg/L)	all year
pH	daily minimum	≥ 6 SU	all year
pH	daily maximum	≤ 9 SU	all year
Solids, total suspended	7-day average	≤ 45 mg/L	all year
Solids, total suspended	30-day average	≤ 30 mg/L	all year
Solids, total suspended	daily maximum	report only (mg/L)	all year
Nitrogen, ammonia total [as N]	7-day average	≤ 14.4 mg/L	Jan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]	7-day average	≤ 7.2 mg/L	Apr–Oct
Nitrogen, ammonia total [as N]	30-day average	≤ 4.8 mg/L	Jan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]	30-day average	≤ 2.4 mg/L	Apr–Oct
Coliform, fecal MF, MFC broth, 44.5 C	weekly geometric mean	≤ 400 #/100mL	all year
Coliform, fecal MF, MFC broth, 44.5 C	monthly geometric mean	≤ 200 #/100mL	all year
Flow, in conduit or thru treatment plant	30-day average	≤ .1 MGD	all year
Chlorine, total residual	daily maximum	≤ 28 ug/L	all year

How strict are these limits?

Nitrogen, ammonia total [as N], 7-day average 7.2 mg/L — stricter than 41% of 80 other minor POTWs in North Carolina
Nitrogen, ammonia total [as N], 30-day average 2.4 mg/L — stricter than 40% of 84 other minor POTWs in North Carolina

Cited limits by parameter: North Carolina'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/NC0028975 · MCP: https://passage-data.com/mcp