South Platte Renew — NPDES permit CO0032999: limits, due date and EPA's record

Sewage treatment plant, major discharger, Englewood, Colorado. NPDES permit CO0032999 expired Nov 30, 2022; its limits still apply. Last 12 months: no values over a limit. Source: EPA ECHO, Oct 22, 2026.

Limits in force (256)

Parameter	Statistic	Limit	Months	Outfall
Temperature, water deg. centigrade	maximum weekly average	report only (deg C)	Jan, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec	001
Temperature, water deg. centigrade	maximum weekly average	report only (deg C)	Jan, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec	001
Temperature, water deg. centigrade	daily maximum	report only (deg C)	Jan, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec	001
Temperature, water deg. centigrade	daily maximum	report only (deg C)	Jan, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec	001
Temperature, water deg. centigrade	maximum weekly average	report only (deg C)	Feb	001
Temperature, water deg. centigrade	maximum weekly average	report only (deg C)	Feb	001
Temperature, water deg. centigrade	daily maximum	report only (deg C)	Feb	001
Temperature, water deg. centigrade	daily maximum	report only (deg C)	Feb	001
Temperature, water deg. centigrade	maximum weekly average	report only (deg C)	Feb	001
Temperature, water deg. centigrade	maximum weekly average	report only (deg C)	Feb	001
Temperature, water deg. centigrade	daily maximum	report only (deg C)	Feb	001
Temperature, water deg. centigrade	daily maximum	report only (deg C)	Feb	001
pH	minimum	≥ 6.5 SU	all year	001
pH	minimum	≥ 6.5 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
pH	maximum	≤ 9 SU	all year	001
Solids, total suspended	30-day average	≤ 30 mg/L	all year	001
Solids, total suspended	30-day average	≤ 30 mg/L	all year	001
Solids, total suspended	maximum 7-day average	≤ 45 mg/L	all year	001
Solids, total suspended	maximum 7-day average	≤ 45 mg/L	all year	001
Nitrogen, ammonia total [as N]	30-day average	≤ 7 mg/L	Apr	001
Nitrogen, ammonia total [as N]	30-day average	≤ 8.7 mg/L	Jan	001
Nitrogen, ammonia total [as N]	30-day average	≤ 8.5 mg/L	Feb	001
Nitrogen, ammonia total [as N]	30-day average	≤ 5.9 mg/L	Jun	001
Nitrogen, ammonia total [as N]	30-day average	≤ 4.2 mg/L	Aug	001
Nitrogen, ammonia total [as N]	30-day average	≤ 4.4 mg/L	Jul	001
Nitrogen, ammonia total [as N]	30-day average	≤ 6.6 mg/L	May	001
Nitrogen, ammonia total [as N]	30-day average	≤ 7.3 mg/L	Dec	001
Nitrogen, ammonia total [as N]	30-day average	≤ 7 mg/L	Mar	001
Nitrogen, ammonia total [as N]	30-day average	≤ 6.3 mg/L	Nov	001
Nitrogen, ammonia total [as N]	30-day average	≤ 5.3 mg/L	Oct	001
Nitrogen, ammonia total [as N]	30-day average	≤ 4.1 mg/L	Sep	001
Nitrogen, ammonia total [as N]	30-day average	≤ 5.3 mg/L	Apr	001
Nitrogen, ammonia total [as N]	30-day average	≤ 6.5 mg/L	Feb	001
Nitrogen, ammonia total [as N]	30-day average	≤ 7.6 mg/L	Jan	001
Nitrogen, ammonia total [as N]	30-day average	≤ 4.3 mg/L	Jun	001
Nitrogen, ammonia total [as N]	30-day average	≤ 3.3 mg/L	Aug	001
Nitrogen, ammonia total [as N]	30-day average	≤ 4.5 mg/L	May	001
Nitrogen, ammonia total [as N]	30-day average	≤ 3.8 mg/L	Jul	001
Nitrogen, ammonia total [as N]	30-day average	≤ 6.4 mg/L	Dec	001
Nitrogen, ammonia total [as N]	30-day average	≤ 6.2 mg/L	Mar	001
Nitrogen, ammonia total [as N]	30-day average	≤ 3.3 mg/L	Sep	001
Nitrogen, ammonia total [as N]	30-day average	≤ 4.1 mg/L	Oct	001
Nitrogen, ammonia total [as N]	30-day average	≤ 5.3 mg/L	Nov	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 17 mg/L	Apr	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 21 mg/L	Jan	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 17 mg/L	Feb	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 29 mg/L	Jun	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 30 mg/L	Aug	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 32 mg/L	Jul	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 23 mg/L	May	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 18 mg/L	Dec	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 16 mg/L	Mar	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 18 mg/L	Nov	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 18 mg/L	Oct	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 24 mg/L	Sep	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 14 mg/L	Apr	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 15 mg/L	Feb	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 19 mg/L	Jan	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 23 mg/L	Jun	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 28 mg/L	Aug	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 19 mg/L	May	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 29 mg/L	Jul	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 16 mg/L	Dec	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 14 mg/L	Mar	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 19 mg/L	Sep	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 16 mg/L	Oct	001
Nitrogen, ammonia total [as N]	daily maximum	≤ 16 mg/L	Nov	001
Nitrogen, inorganic total	daily maximum	≤ 47.9 mg/L	Jun	001
Nitrogen, inorganic total	daily maximum	≤ 46.5 mg/L	Aug	001
Nitrogen, inorganic total	daily maximum	≤ 29.3 mg/L	Dec	001
Nitrogen, inorganic total	daily maximum	≤ 24.8 mg/L	Jan	001
Nitrogen, inorganic total	daily maximum	≤ 24.5 mg/L	Feb	001
Nitrogen, inorganic total	daily maximum	≤ 28.5 mg/L	Nov	001
Nitrogen, inorganic total	daily maximum	≤ 27.1 mg/L	Apr	001
Nitrogen, inorganic total	daily maximum	≤ 36.2 mg/L	Sep	001
Nitrogen, inorganic total	daily maximum	≤ 32.9 mg/L	Oct	001
Nitrogen, inorganic total	daily maximum	≤ 44.8 mg/L	May	001
Nitrogen, inorganic total	daily maximum	≤ 23.5 mg/L	Mar	001
Nitrogen, inorganic total	daily maximum	≤ 42.2 mg/L	Jul	001
Nitrogen, inorganic total	daily maximum	≤ 39.1 mg/L	Jun	001
Nitrogen, inorganic total	daily maximum	≤ 39.9 mg/L	Aug	001
Nitrogen, inorganic total	daily maximum	≤ 23.2 mg/L	Feb	001
Nitrogen, inorganic total	daily maximum	≤ 23.4 mg/L	Jan	001
Nitrogen, inorganic total	daily maximum	≤ 26.5 mg/L	Dec	001
Nitrogen, inorganic total	daily maximum	≤ 24.7 mg/L	Apr	001
Nitrogen, inorganic total	daily maximum	≤ 25.7 mg/L	Nov	001
Nitrogen, inorganic total	daily maximum	≤ 29.4 mg/L	Oct	001
Nitrogen, inorganic total	daily maximum	≤ 32.6 mg/L	Sep	001
Nitrogen, inorganic total	daily maximum	≤ 36.3 mg/L	May	001
Nitrogen, inorganic total	daily maximum	≤ 22.6 mg/L	Mar	001
Nitrogen, inorganic total	daily maximum	≤ 36.9 mg/L	Jul	001
Nitrogen, inorganic total	daily maximum	≤ 13629 lb/d	Jun	001
Nitrogen, inorganic total	daily maximum	≤ 13203 lb/d	Aug	001
Nitrogen, inorganic total	daily maximum	≤ 8320 lb/d	Dec	001
Nitrogen, inorganic total	daily maximum	≤ 7042 lb/d	Jan	001
Nitrogen, inorganic total	daily maximum	≤ 6956 lb/d	Feb	001
Nitrogen, inorganic total	daily maximum	≤ 8120 lb/d	Nov	001
Nitrogen, inorganic total	daily maximum	≤ 7013 lb/d	Apr	001
Nitrogen, inorganic total	daily maximum	≤ 10278 lb/d	Sep	001
Nitrogen, inorganic total	daily maximum	≤ 9398 lb/d	Oct	001
Nitrogen, inorganic total	daily maximum	≤ 12749 lb/d	May	001
Nitrogen, inorganic total	daily maximum	≤ 6673 lb/d	Mar	001
Nitrogen, inorganic total	daily maximum	≤ 11982 lb/d	Jul	001
Nitrogen, inorganic total	daily maximum	≤ 16325 lb/d	Jun	001
Nitrogen, inorganic total	daily maximum	≤ 16660 lb/d	Aug	001
Nitrogen, inorganic total	daily maximum	≤ 9687 lb/d	Feb	001
Nitrogen, inorganic total	daily maximum	≤ 9771 lb/d	Jan	001
Nitrogen, inorganic total	daily maximum	≤ 11065 lb/d	Dec	001
Nitrogen, inorganic total	daily maximum	≤ 10313 lb/d	Apr	001
Nitrogen, inorganic total	daily maximum	≤ 10732 lb/d	Nov	001
Nitrogen, inorganic total	daily maximum	≤ 12275 lb/d	Oct	001
Nitrogen, inorganic total	daily maximum	≤ 13611 lb/d	Sep	001
Nitrogen, inorganic total	daily maximum	≤ 15157 lb/d	May	001
Nitrogen, inorganic total	daily maximum	≤ 9467 lb/d	Mar	001
Nitrogen, inorganic total	daily maximum	≤ 15408 lb/d	Jul	001
Nitrogen, inorganic total	aggregate rolling median	report only (mg/L)	all year	001
Nitrogen, inorganic total	aggregate rolling median	report only (mg/L)	all year	001
Nitrogen, inorganic total	95th percentile	report only (mg/L)	all year	001
Nitrogen, inorganic total	95th percentile	report only (mg/L)	all year	001
Phosphorus, total [as P]	aggregate rolling median	report only (mg/L)	all year	001
Phosphorus, total [as P]	aggregate rolling median	report only (mg/L)	all year	001
Phosphorus, total [as P]	95th percentile	report only (mg/L)	all year	001
Phosphorus, total [as P]	95th percentile	report only (mg/L)	all year	001
Carbon, tot organic [TOC]	30-day average	report only (mg/L)	all year	001
Carbon, tot organic [TOC]	30-day average	report only (mg/L)	all year	001
Cyanide, weak acid, dissociable	daily maximum	report only (ug/L)	all year	001
Cyanide, weak acid, dissociable	daily maximum	report only (ug/L)	all year	001
Cyanide, total [as CN]	daily maximum	report only (ug/L)	all year	001
Chloride [as Cl]	30-day average	report only (mg/L)	all year	001
Chloride [as Cl]	30-day average	report only (mg/L)	Mar, Jun, Sep, Dec	001
Chloride [as Cl]	30-day average	≤ 286 mg/L	Mar, Jun, Sep, Dec	001
Chloride [as Cl]	30-day average	report only (mg/L)	all year	001
Chloride [as Cl]	rolling average	report only (mg/L)	all year	001
Chloride [as Cl]	rolling average	report only (mg/L)	Mar, Jun, Sep, Dec	001
Arsenic, total recoverable	30-day average	report only (ug/L)	all year	001
Arsenic, total recoverable	30-day average	report only (ug/L)	all year	001
Iron, total recoverable	30-day average	≤ 1228 ug/L	all year	001
Iron, total recoverable	30-day average	≤ 1155 ug/L	all year	001
Iron, total recoverable	rolling average	report only (ug/L)	all year	001
Iron, total recoverable	rolling average	report only (ug/L)	all year	001
Arsenic, total [as As]	daily maximum	report only (ug/L)	all year	001
Cadmium, total [as Cd]	daily maximum	report only (ug/L)	all year	001
Chromium, total [as Cr]	daily maximum	report only (ug/L)	all year	001
Copper, total [as Cu]	daily maximum	report only (ug/L)	all year	001
Iron, dissolved [as Fe]	30-day average	≤ 399 ug/L	all year	001
Iron, dissolved [as Fe]	30-day average	≤ 367 ug/L	all year	001
Lead, total [as Pb]	daily maximum	report only (ug/L)	all year	001
Manganese, dissolved [as Mn]	30-day average	report only (ug/L)	all year	001
Manganese, dissolved [as Mn]	daily maximum	report only (ug/L)	all year	001
Molybdenum, total [as Mo]	daily maximum	report only (ug/L)	all year	001
Nickel, total [as Ni]	daily maximum	report only (ug/L)	all year	001
Silver, total [as Ag]	daily maximum	report only (ug/L)	all year	001
Zinc, total [as Zn]	daily maximum	report only (ug/L)	all year	001
Aluminum, total recoverable	30-day average	≤ 1926 ug/L	all year	001
Aluminum, total recoverable	30-day average	≤ 1779 ug/L	all year	001
Aluminum, total recoverable	daily maximum	≤ 12876 ug/L	all year	001
Aluminum, total recoverable	daily maximum	≤ 11983 ug/L	all year	001
Aluminum, total recoverable	rolling average	report only (ug/L)	all year	001
Aluminum, total recoverable	rolling average	report only (ug/L)	all year	001
Selenium, total [as Se]	daily maximum	report only (ug/L)	all year	001
Chromium, hexavalent dissolved [as Cr]	30-day average	report only (ug/L)	all year	001
Chromium, hexavalent dissolved [as Cr]	30-day average	report only (ug/L)	all year	001
Chromium, hexavalent dissolved [as Cr]	daily maximum	report only (ug/L)	all year	001
Chromium, hexavalent dissolved [as Cr]	daily maximum	report only (ug/L)	all year	001
Silver, potentially dissolved	rolling average	report only (ug/L)	all year	001
Copper, potentially dissolved	30-day average	report only (ug/L)	all year	001
Copper, potentially dissolved	30-day average	report only (ug/L)	all year	001
Copper, potentially dissolved	daily maximum	report only (ug/L)	all year	001
Copper, potentially dissolved	daily maximum	report only (ug/L)	all year	001
Copper, potentially dissolved	rolling average	report only (ug/L)	all year	001
Copper, potentially dissolved	rolling average	≤ 12.6 ug/L	all year	001
Copper, potentially dissolved	rolling average	report only (ug/L)	all year	001
Copper, potentially dissolved	rolling average	≤ 12.6 ug/L	all year	001
Cadmium, potentially dissolvd	rolling average	report only (ug/L)	all year	001
Cadmium, potentially dissolvd	rolling average	report only (ug/L)	all year	001
Selenium, potentially dissolvd	30-day average	report only (ug/L)	all year	001
Selenium, potentially dissolvd	30-day average	report only (ug/L)	all year	001
Selenium, potentially dissolvd	rolling average	report only (ug/L)	all year	001
Selenium, potentially dissolvd	rolling average	report only (ug/L)	all year	001
Oil and grease	instantaneous maximum	≤ 10 mg/L	all year	001
Oil and grease	instantaneous maximum	≤ 10 mg/L	all year	001
Total phenols	daily maximum	report only (ug/L)	all year	001
Uranium, total	30-day average	≤ 30 ug/L	all year	001
Uranium, total	30-day average	≤ 30 ug/L	all year	001
Flow, in conduit or thru treatment plant	30-day average	≤ 34 MGD	all year	001
Flow, in conduit or thru treatment plant	30-day average	≤ 50 MGD	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	001
Chlorine, total residual	30-day average	≤ .016 mg/L	all year	001
Chlorine, total residual	30-day average	≤ .014 mg/L	all year	001
Chlorine, total residual	instantaneous maximum	≤ .025 mg/L	all year	001
Chlorine, total residual	instantaneous maximum	≤ .023 mg/L	all year	001
Chlorine, total residual	rolling average	≤ .0025 mg/L	all year	001
Chlorine, total residual	rolling average	≤ .0022 mg/L	all year	001
Mercury, total low level	30-day average	report only (ug/L)	all year	001
Mercury, total low level	rolling average	report only (ug/L)	all year	001
Mercury, total low level	rolling average	report only (ug/L)	all year	001
E. coli	30-day geometric mean	≤ 126 #/100mL	all year	001
E. coli	30-day geometric mean	≤ 126 #/100mL	all year	001
E. coli	maximum 7-day geometric mean	≤ 252 #/100mL	all year	001
E. coli	maximum 7-day geometric mean	≤ 252 #/100mL	all year	001
Nonylphenol	30-day average	report only (ug/L)	all year	001
Nonylphenol	daily maximum	report only (ug/L)	all year	001
Mercury, total [as Hg]	daily maximum	report only (ug/L)	all year	001
BOD, carbonaceous [5 day, 20 C]	30-day average	≤ 25 mg/L	all year	001
BOD, carbonaceous [5 day, 20 C]	30-day average	≤ 25 mg/L	all year	001
BOD, carbonaceous [5 day, 20 C]	maximum 7-day average	≤ 40 mg/L	all year	001
BOD, carbonaceous [5 day, 20 C]	maximum 7-day average	≤ 40 mg/L	all year	001
BOD, carb-5 day, 20 deg C, percent removal	monthly average minimum	≥ 85 %	all year	001
BOD, carb-5 day, 20 deg C, percent removal	monthly average minimum	≥ 85 %	all year	001
Solids, suspended percent removal	monthly average minimum	≥ 85 %	all year	001
Solids, suspended percent removal	monthly average minimum	≥ 85 %	all year	001
Sulfate	30-day average	report only (mg/L)	all year	001
Sulfate	30-day average	report only (mg/L)	all year	001
Oil and grease visual	instantaneous maximum	report only (abst=0;prst=1)	all year	001
Oil and grease visual	instantaneous maximum	report only (abst=0;prst=1)	all year	001
Static Renewal 7 Day Chronic Ceriodaphnia dubia	single sample	report only (tox chronic)	all year	001
Static Renewal 7 Day Chronic Ceriodaphnia dubia	single sample	report only (tox chronic)	all year	001
Static Renewal 7 Day Chronic Ceriodaphnia dubia	minimum value	report only (tox chronic)	all year	001
Static Renewal 7 Day Chronic Ceriodaphnia dubia	minimum value	report only (tox chronic)	all year	001
Static Renewal 7 Day Chronic Ceriodaphnia dubia	minimum value	≥ 69 tox chronic	all year	001
Static Renewal 7 Day Chronic Ceriodaphnia dubia	minimum value	≥ 76 tox chronic	all year	001
Static Renewal 7 Day Chronic Pimephales promelas	single sample	report only (tox chronic)	all year	001
Static Renewal 7 Day Chronic Pimephales promelas	single sample	report only (tox chronic)	all year	001
Static Renewal 7 Day Chronic Pimephales promelas	minimum value	report only (tox chronic)	all year	001
Static Renewal 7 Day Chronic Pimephales promelas	minimum value	report only (tox chronic)	all year	001
Static Renewal 7 Day Chronic Pimephales promelas	minimum value	≥ 69 tox chronic	all year	001
Static Renewal 7 Day Chronic Pimephales promelas	minimum value	≥ 76 tox chronic	all year	001
Plant capacity fact. percent of capacity	30-day average	report only (%)	all year	300
Plant capacity fact. percent of capacity	30-day average	report only (%)	all year	300
BOD, 5-day, 20 deg. C	30-day average	report only (mg/L)	all year	300
BOD, 5-day, 20 deg. C	maximum 7-day average	report only (mg/L)	all year	300
BOD, 5-day, 20 deg. C	30-day average	report only (lb/d)	all year	300
BOD, 5-day, 20 deg. C	maximum 7-day average	report only (lb/d)	all year	300
Solids, total suspended	30-day average	report only (mg/L)	all year	300
Solids, total suspended	maximum 7-day average	report only (mg/L)	all year	300
Cyanide, total [as CN]	daily maximum	report only (ug/L)	all year	300
Arsenic, total [as As]	daily maximum	report only (ug/L)	all year	300
Cadmium, total [as Cd]	daily maximum	report only (ug/L)	all year	300
Chromium, total [as Cr]	daily maximum	report only (ug/L)	all year	300
Copper, total [as Cu]	daily maximum	report only (ug/L)	all year	300
Lead, total [as Pb]	daily maximum	report only (ug/L)	all year	300
Molybdenum, total [as Mo]	daily maximum	report only (ug/L)	all year	300
Nickel, total [as Ni]	daily maximum	report only (ug/L)	all year	300
Silver, total [as Ag]	daily maximum	report only (ug/L)	all year	300
Zinc, total [as Zn]	daily maximum	report only (ug/L)	all year	300
Selenium, total [as Se]	daily maximum	report only (ug/L)	all year	300
Total phenols	daily maximum	report only (ug/L)	all year	300
Flow, in conduit or thru treatment plant	30-day average	report only (MGD)	all year	300
Flow, in conduit or thru treatment plant	daily maximum	report only (MGD)	all year	300
Mercury, total [as Hg]	daily maximum	report only (ug/L)	all year	300
BOD, carbonaceous [5 day, 20 C]	30-day average	report only (mg/L)	all year	300
BOD, carbonaceous [5 day, 20 C]	maximum 7-day average	report only (mg/L)	all year	300
Temperature, water deg. centigrade	maximum weekly average	report only (deg C)	all year	UST
Temperature, water deg. centigrade	daily maximum	report only (deg C)	all year	UST

How strict are these limits?

Your permit document is the final word. As JSON: /api/v1/permits/CO0032999 · MCP: https://passage-data.com/mcp