Clark County School District — NPDES permit NV0023485: limits, due date and EPA's record

Elementary And Secondary Schools, Las Vegas, Nevada. NPDES permit NV0023485 expired Aug 31, 2026; its limits still apply. Last 12 months: no values over a limit, 29 required values missing, 25 of 48 reports late. Source: EPA ECHO, Oct 22, 2026.

Limits in force (135)

Parameter	Statistic	Limit	Months	Outfall
Flow rate	30-day average	report only (gal/d)	all year	001
Flow rate	30-day average	report only (gal/d)	all year	001
Flow rate	30-day average	report only (gal/d)	all year	001
Flow rate	30-day average	report only (gal/d)	all year	001
Flow rate	daily maximum	report only (gal/d)	all year	001
Flow rate	daily maximum	report only (gal/d)	all year	001
Flow rate	daily maximum	report only (gal/d)	all year	001
Flow rate	daily maximum	report only (gal/d)	all year	001
Nitrogen, nitrite total [as N]	daily maximum	≤ 5 mg/L	all year	001
Nitrogen, nitrite total [as N]	daily maximum	≤ 5 mg/L	all year	001
Nitrogen, nitrate total [as N]	daily maximum	≤ 90 mg/L	all year	001
Nitrogen, nitrate total [as N]	daily maximum	≤ 90 mg/L	all year	001
Nitrogen, inorganic total	daily maximum	≤ 20 mg/L	all year	001
Nitrogen, inorganic total	daily maximum	≤ 20 mg/L	all year	001
Cyanide, total [as CN]	daily maximum	≤ 22 ug/L	all year	001
Sulfide, total [as S]	daily maximum	≤ 2 ug/L	all year	001
Fluoride, total [as F]	daily maximum	≤ 1000 ug/L	all year	001
Arsenic, total recoverable	daily maximum	≤ 340 ug/L	all year	001
Iron, total recoverable	daily maximum	≤ 1000 ug/L	all year	001
Beryllium, total recoverable [as Be]	daily maximum	≤ 100 ug/L	all year	001
Boron, total [as B]	daily maximum	report only (mg/L)	all year	001
Boron, total [as B]	daily maximum	report only (mg/L)	all year	001
Nickel, total recoverable	daily maximum	≤ 1734 ug/L	all year	001
Silver total recoverable	daily maximum	≤ 46 ug/L	all year	001
Zinc, total recoverable	daily maximum	≤ 435 ug/L	all year	001
Cadmium, total recoverable	daily maximum	≤ 7.6 ug/L	all year	001
Lead, total recoverable	daily maximum	≤ 321 ug/L	all year	001
Chromium, total recoverable	daily maximum	≤ 100 ug/L	all year	001
Copper, total recoverable	daily maximum	≤ 58 ug/L	all year	001
Molybdenum, total recoverable	daily maximum	≤ 6160 ug/L	all year	001
Selenium, total [as Se]	daily maximum	≤ .02 mg/L	all year	001
Selenium, total [as Se]	daily maximum	≤ .02 mg/L	all year	001
Manganese, total recoverable	daily maximum	≤ 200 ug/L	all year	001
Methyl tert-butyl ether [MTBE]	daily maximum	≤ 20 ug/L	all year	001
Methyl tert-butyl ether [MTBE]	daily maximum	≤ 20 ug/L	all year	001
Toluene	daily maximum	≤ 100 ug/L	all year	001
Toluene	daily maximum	≤ 100 ug/L	all year	001
Benzene	daily maximum	≤ 5 ug/L	all year	001
Benzene	daily maximum	≤ 5 ug/L	all year	001
Acrolein	daily maximum	≤ 3 ug/L	all year	001
Ethylbenzene	daily maximum	≤ 100 ug/L	all year	001
Ethylbenzene	daily maximum	≤ 100 ug/L	all year	001
Pentachlorophenol	daily maximum	report only (ug/L)	all year	001
4,4'-DDT	daily maximum	≤ 1.1 ug/L	all year	001
Aldrin	daily maximum	≤ 3 ug/L	all year	001
Chlordane [tech mix. and metabolites]	daily maximum	≤ 2.4 ug/L	all year	001
Dieldrin	daily maximum	≤ .2 ug/L	all year	001
Endrin	daily maximum	≤ .1 ug/L	all year	001
Toxaphene	daily maximum	≤ .7 ug/L	all year	001
Heptachlor	daily maximum	≤ .5 ug/L	all year	001
Heptachlor epoxide	daily maximum	≤ .5 ug/L	all year	001
pH, maximum	daily maximum	≤ 9 SU	all year	001
pH, maximum	daily maximum	≤ 9 SU	all year	001
pH, minimum	daily minimum	≥ 6.5 SU	all year	001
pH, minimum	daily minimum	≥ 6.5 SU	all year	001
Solids, total dissolved	daily maximum	≤ 3000 mL/L	all year	001
Solids, total dissolved	daily maximum	≤ 3000 mL/L	all year	001
Mercury, total recoverable	daily maximum	≤ 1.4 ug/L	all year	001
Xylene [mix of m+o+p]	daily maximum	≤ 200 ug/L	all year	001
Xylene [mix of m+o+p]	daily maximum	≤ 200 ug/L	all year	001
Hydrocarbons, total petroleum	daily maximum	≤ 1 mg/L	all year	001
Hydrocarbons, total petroleum	daily maximum	≤ 1 mg/L	all year	001
Flow rate	30-day average	report only (gal/d)	all year	002
Flow rate	30-day average	report only (gal/d)	all year	002
Flow rate	30-day average	report only (gal/d)	all year	002
Flow rate	30-day average	report only (gal/d)	all year	002
Flow rate	daily maximum	report only (gal/d)	all year	002
Flow rate	daily maximum	report only (gal/d)	all year	002
Flow rate	daily maximum	report only (gal/d)	all year	002
Flow rate	daily maximum	report only (gal/d)	all year	002
Nitrogen, nitrite total [as N]	daily maximum	≤ 5 mg/L	all year	002
Nitrogen, nitrite total [as N]	daily maximum	≤ 5 mg/L	all year	002
Nitrogen, nitrate total [as N]	daily maximum	≤ 90 mg/L	all year	002
Nitrogen, nitrate total [as N]	daily maximum	≤ 90 mg/L	all year	002
Nitrogen, inorganic total	daily maximum	≤ 20 mg/L	all year	002
Nitrogen, inorganic total	daily maximum	≤ 20 mg/L	all year	002
Cyanide, total [as CN]	daily maximum	≤ 22 ug/L	all year	002
Sulfide, total [as S]	daily maximum	≤ 2 ug/L	all year	002
Fluoride, total [as F]	daily maximum	≤ 1000 ug/L	all year	002
Arsenic, total recoverable	daily maximum	≤ 340 ug/L	all year	002
Iron, total recoverable	daily maximum	≤ 1000 ug/L	all year	002
Beryllium, total recoverable [as Be]	daily maximum	≤ 100 ug/L	all year	002
Boron, total [as B]	daily maximum	report only (mg/L)	all year	002
Boron, total [as B]	daily maximum	report only (mg/L)	all year	002
Nickel, total recoverable	daily maximum	≤ 1734 ug/L	all year	002
Silver total recoverable	daily maximum	≤ 46 ug/L	all year	002
Zinc, total recoverable	daily maximum	≤ 435 ug/L	all year	002
Cadmium, total recoverable	daily maximum	≤ 7.6 ug/L	all year	002
Lead, total recoverable	daily maximum	≤ 321 ug/L	all year	002
Chromium, total recoverable	daily maximum	≤ 100 ug/L	all year	002
Copper, total recoverable	daily maximum	≤ 58 ug/L	all year	002
Molybdenum, total recoverable	daily maximum	≤ 6160 ug/L	all year	002
Selenium, total [as Se]	daily maximum	≤ .02 mg/L	all year	002
Selenium, total [as Se]	daily maximum	≤ .02 mg/L	all year	002
Manganese, total recoverable	daily maximum	≤ 200 ug/L	all year	002
Methyl tert-butyl ether [MTBE]	daily maximum	≤ 20 ug/L	all year	002
Methyl tert-butyl ether [MTBE]	daily maximum	≤ 20 ug/L	all year	002
Toluene	daily maximum	≤ 100 ug/L	all year	002
Benzene	daily maximum	≤ 5 ug/L	all year	002
Benzene	daily maximum	≤ 5 ug/L	all year	002
Acrolein	daily maximum	≤ 3 ug/L	all year	002
Ethylbenzene	daily maximum	≤ 100 ug/L	all year	002
Ethylbenzene	daily maximum	≤ 100 ug/L	all year	002
Pentachlorophenol	daily maximum	report only (ug/L)	all year	002
4,4'-DDT	daily maximum	≤ 1.1 ug/L	all year	002
Aldrin	daily maximum	≤ 3 ug/L	all year	002
Chlordane [tech mix. and metabolites]	daily maximum	≤ 2.4 ug/L	all year	002
Dieldrin	daily maximum	≤ .2 ug/L	all year	002
Endrin	daily maximum	≤ .1 ug/L	all year	002
Toxaphene	daily maximum	≤ .7 ug/L	all year	002
Heptachlor	daily maximum	≤ .5 ug/L	all year	002
Heptachlor epoxide	daily maximum	≤ .5 ug/L	all year	002
pH, maximum	daily maximum	≤ 9 SU	all year	002
pH, maximum	daily maximum	≤ 9 SU	all year	002
pH, minimum	daily minimum	≥ 6.5 SU	all year	002
pH, minimum	daily minimum	≥ 6.5 SU	all year	002
Solids, total dissolved	daily maximum	≤ 3000 mg/L	all year	002
Solids, total dissolved	daily maximum	≤ 3000 mg/L	all year	002
Mercury, total recoverable	daily maximum	≤ 1.4 ug/L	all year	002
Xylene [mix of m+o+p]	daily maximum	≤ 200 ug/L	all year	002
Xylene [mix of m+o+p]	daily maximum	≤ 200 ug/L	all year	002
Hydrocarbons, total petroleum	daily maximum	≤ 1 mg/L	all year	002
Hydrocarbons, total petroleum	daily maximum	≤ 1 mg/L	all year	002
Flow rate	30-day average	report only (gal/d)	all year	003
Flow rate	30-day average	report only (gal/d)	all year	003
Flow rate	30-day average	report only (gal/d)	all year	003
Flow rate	30-day average	report only (gal/d)	all year	003
Flow rate	daily maximum	< 50000 gal/d	all year	003
Flow rate	daily maximum	< 50000 gal/d	all year	003
Flow rate	daily maximum	< 50000 gal/d	all year	003
Flow rate	daily maximum	< 50000 gal/d	all year	003
Nitrogen, ammonia total [as N]	daily maximum	report only (lb/d)	all year	003
Nitrogen, ammonia total [as N]	daily maximum	report only (lb/d)	all year	003
Phosphorus, total [as P]	daily maximum	report only (lb/d)	all year	003
Phosphorus, total [as P]	daily maximum	report only (lb/d)	all year	003

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/NV0023485 · MCP: https://passage-data.com/mcp