Stones Throw Homeowners Association of Cabarrus County — NPDES permit NC0070289: limits, due date and EPA's record

Sewerage Systems, Concord, North Carolina. NPDES permit NC0070289, in force until Nov 30, 2028. Last 12 months: no values over a limit, 2 of 11 reports late. Source: EPA ECHO, Oct 22, 2026.

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	30-day average	≤ 30 mg/L	Jan, Feb, Mar, Nov, Dec
BOD, 5-day, 20 deg. C	30-day average	≤ 18 mg/L	Apr–Oct
BOD, 5-day, 20 deg. C	daily maximum	≤ 45 mg/L	Jan, Feb, Mar, Nov, Dec
BOD, 5-day, 20 deg. C	daily maximum	≤ 27 mg/L	Apr–Oct
pH	daily minimum	≥ 6 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
Nitrogen, ammonia total [as N]	30-day average	≤ 12 mg/L	Jan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]	30-day average	≤ 5 mg/L	Apr–Oct
Nitrogen, ammonia total [as N]	daily maximum	≤ 35 mg/L	Jan, Feb, Mar, Nov, Dec
Nitrogen, ammonia total [as N]	daily maximum	≤ 25 mg/L	Apr–Oct
Coliform, fecal MF, MFC broth, 44.5 C	monthly geometric mean	≤ 200 #/100mL	all year
Coliform, fecal MF, MFC broth, 44.5 C	daily maximum	≤ 400 #/100mL	all year
Flow, in conduit or thru treatment plant	30-day average	≤ .05 MGD	all year
Chlorine, total residual	daily maximum	≤ 28 ug/L	all year

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/NC0070289 · MCP: https://passage-data.com/mcp