Wieland Copper Products LLC — NPDES permit NC0035173: limits, due date and EPA's record

Copper Rolling And Drawing, Pine Hall, North Carolina. NPDES permit NC0035173, in force until Oct 31, 2027. Last 12 months: over a limit 6 times (last July 2026), 2 of 22 reports late. Source: EPA ECHO, Oct 22, 2026.

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

Period ending	Parameter	Reported	Limit	Over by
December 2025	Solids, total suspended, daily maximum	58.6 mg/L	≤ 45 mg/L	30%
December 2025	pH, daily minimum	2.4 SU	≥ 6 SU	—
January 2026	Solids, total suspended, daily maximum	69.5 mg/L	≤ 45 mg/L	54%
January 2026	pH, daily minimum	2.6 SU	≥ 6 SU	—
January 2026	pH, daily maximum	11.3 SU	≤ 9 SU	—
July 2026	Solids, total suspended, daily maximum	64.1 mg/L	≤ 45 mg/L	42%

Limits in force (39)

Parameter	Statistic	Limit	Months	Outfall
Temperature, water deg. centigrade	daily maximum	report only (deg C)	all year	001
Oxygen, dissolved [DO]	daily minimum	≥ 5 mg/L	all year	001
BOD, 5-day, 20 deg. C	30-day average	≤ 20 mg/L	all year	001
BOD, 5-day, 20 deg. C	daily maximum	≤ 30 mg/L	all year	001
pH	daily minimum	≥ 6 SU	all year	001
pH	daily maximum	≤ 9 SU	all year	001
Solids, total suspended	30-day average	≤ 30 mg/L	all year	001
Solids, total suspended	daily maximum	≤ 45 mg/L	all year	001
Oil & Grease	daily maximum	report only (mg/L)	all year	001
Nitrogen, ammonia total [as N]	30-day average	≤ 2.5 mg/L	Apr–Oct	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 12.5 mg/L	Apr–Oct	001
Nitrogen, ammonia total [as N]	daily maximum	report only (mg/L)	Jan, Feb, Mar, Nov, Dec	001
Copper, total [as Cu]	30-day average	≤ 35 ug/L	all year	001
Copper, total [as Cu]	daily maximum	≤ 48 ug/L	all year	001
Coliform, fecal MF, MFC broth, 44.5 C	monthly geometric mean	≤ 200 #/100mL	all year	001
Coliform, fecal MF, MFC broth, 44.5 C	daily maximum	≤ 400 #/100mL	all year	001
Flow, in conduit or thru treatment plant	30-day average	≤ .025 MGD	all year	001
Chlorine, total residual	daily maximum	≤ 28 ug/L	all year	001
Temperature, water deg. centigrade	daily maximum	report only (deg C)	all year	003
Oxygen, dissolved [DO]	daily minimum	≥ 5 mg/L	all year	003
BOD, 5-day, 20 deg. C	30-day average	≤ 5 mg/L	all year	003
BOD, 5-day, 20 deg. C	daily maximum	≤ 7.5 mg/L	all year	003
pH	daily minimum	≥ 6 SU	all year	003
pH	daily maximum	≤ 9 SU	all year	003
Solids, total suspended	30-day average	≤ 30 mg/L	all year	003
Solids, total suspended	daily maximum	≤ 45 mg/L	all year	003
Nitrogen, ammonia total [as N]	30-day average	≤ 2 mg/L	Apr–Oct	003
Nitrogen, ammonia total [as N]	30-day average	≤ 4 mg/L	Jan, Feb, Mar, Nov, Dec	003
Nitrogen, ammonia total [as N]	daily maximum	≤ 10 mg/L	Apr–Oct	003
Nitrogen, ammonia total [as N]	daily maximum	≤ 20 mg/L	Jan, Feb, Mar, Nov, Dec	003
Hardness, total [as CaCO3]	daily maximum	report only (mg/L)	all year	003
Hardness, total [as CaCO3]	daily maximum	report only (mg/L)	all year	003
Copper, total [as Cu]	30-day average	≤ 26 ug/L	all year	003
Copper, total [as Cu]	daily maximum	≤ 38 ug/L	all year	003
Coliform, fecal MF, MFC broth, 44.5 C	30-day average	≤ 200 CFU/100mL	all year	003
Coliform, fecal MF, MFC broth, 44.5 C	daily maximum	≤ 400 CFU/100mL	all year	003
Flow, in conduit or thru treatment plant	30-day average	≤ .025 MGD	all year	003
Chlorine, total residual	daily maximum	≤ 28 ug/L	all year	003
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia	daily maximum	report only (pass=0;fail=1)	all year	003

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/NC0035173 · MCP: https://passage-data.com/mcp