Pinery Water and Wastewater Dist — NPDES permit CO0041092: limits, due date and EPA's record

NPDES permit CO0041092 · Major POTW · administratively continued, expires 2016-10-31 · EPA's file as of 2026-09-19

This permit expired on 2016-10-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

EPA's record, 2025-09-01 to 2026-08-31

Last period with anything received: 2026-07-31. Most often over: Mercury, total [as Hg] (1).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (176)

Outfall	Parameter	Statistic	Limit	Months
001	Temperature, water deg. centigrade	MX WK AV	report only	all year
001	Temperature, water deg. centigrade	DAILY MX	report only	all year
001	BOD, 5-day, 20 deg. C	30DA AVG	<= 30 mg/L	all year
001	BOD, 5-day, 20 deg. C	MX 7D AV	<= 45 mg/L	all year
001	pH	MINIMUM	>= 6.5 SU	all year
001	pH	MAXIMUM	<= 9 SU	all year
001	Solids, total suspended	30DA AVG	<= 30 mg/L	all year
001	Solids, total suspended	MX 7D AV	<= 45 mg/L	all year
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 8.9 mg/L	Jan
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 8.8 mg/L	Feb
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 10.7 mg/L	Mar
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 10 mg/L	Apr
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 6.8 mg/L	May
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 6 mg/L	Jun
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 4.9 mg/L	Jul
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 4.7 mg/L	Aug
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 5.2 mg/L	Sep
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 5.9 mg/L	Oct
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 6.8 mg/L	Nov
001	Nitrogen, ammonia total [as N]	30DA AVG	<= 8 mg/L	Dec
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Jan
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Feb
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Mar
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Apr
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	May
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Jun
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Jul
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Aug
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Sep
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Oct
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Nov
001	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Dec
001	Nitrogen, inorganic total	DAILY MX	<= 10 mg/L	all year
001	Phosphorus, total [as P]	30DA AVG	<= .05 mg/L	all year
001	Cyanide, weak acid, dissociable	DAILY MX	<= 5 ug/L	all year
001	Chloride [as Cl]	30DA AVG	<= 240 mg/L	all year
001	Iron, total recoverable	30DA AVG	<= 27 ug/L	all year
001	Iron, total recoverable	30DA AVG	<= 40 ug/L	all year
001	Iron, dissolved [as Fe]	30DA AVG	<= 15 ug/L	all year
001	Iron, dissolved [as Fe]	30DA AVG	<= 40 ug/L	all year
001	Manganese, dissolved [as Mn]	30DA AVG	<= 20 ug/L	all year
001	Manganese, dissolved [as Mn]	30DA AVG	<= 33 ug/L	all year
001	Zinc, potentially dissolved	30DA AVG	<= 67 ug/L	all year
001	Zinc, potentially dissolved	30DA AVG	<= 96 ug/L	all year
001	Zinc, potentially dissolved	DAILY MX	report only	all year
001	Zinc, potentially dissolved	DAILY MX	report only	all year
001	Copper, potentially dissolved	30DA AVG	<= 16 ug/L	all year
001	Copper, potentially dissolved	30DA AVG	<= 18 ug/L	all year
001	Copper, potentially dissolved	DAILY MX	report only	all year
001	Copper, potentially dissolved	DAILY MX	report only	all year
001	Chromium, hexavalent potentially disolvd	30DA AVG	report only	all year
001	Chromium, hexavalent potentially disolvd	DAILY MX	report only	all year
001	Arsenic, potentially dissolved	DAILY MX	report only	all year
001	Lead, potentially dissolvd	30DA AVG	<= 5 ug/L	all year
001	Lead, potentially dissolvd	DAILY MX	report only	all year
001	Selenium, potentially dissolvd	30DA AVG	<= 3 ug/L	all year
001	Selenium, potentially dissolvd	DAILY MX	report only	all year
001	Oil and grease	INST MAX	<= 10 mg/L	all year
001	Chromium, trivalent total recoverable	DAILY MX	report only	all year
001	Flow, in conduit or thru treatment plant	30DA AVG	<= 2 MGD	all year
001	Flow, in conduit or thru treatment plant	30DA AVG	<= 2 MGD	all year
001	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
001	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
001	Chlorine, total residual	30DA AVG	<= .011 mg/L	all year
001	Chlorine, total residual	INST MAX	<= .019 mg/L	all year
001	E. coli	30DA AVG	<= 127 #/100mL	all year
001	E. coli	MX 7D AV	<= 254 #/100mL	all year
001	Nonylphenol	30DA AVG	report only	all year
001	Nonylphenol	30DA AVG	report only	all year
001	Nonylphenol	DAILY MX	report only	all year
001	Nonylphenol	DAILY MX	report only	all year
001	Mercury, total [as Hg]	30DA AVG	<= .0052 ug/L	all year
001	Mercury, total [as Hg]	30DA AVG	<= .0088 ug/L	all year
001	BOD, 5-day, percent removal	MO AV MN	>= 85 %	all year
001	Solids, suspended percent removal	MINIMUM	>= 85 %	all year
001	Sulfate	30DA AVG	<= 223 mg/L	all year
001	Oil and grease visual	INST MAX	report only	all year
001	Static Renewal 7 Day Chronic Ceriodaphnia dubia	SINGSAMP	report only	Jun, Dec
001	Static Renewal 7 Day Chronic Ceriodaphnia dubia	MN VALUE	report only	Jun, Dec
001	Static Renewal 7 Day Chronic Ceriodaphnia dubia	MN VALUE	>= 97 tox chronic	Jun, Dec
001	Static Renewal 7 Day Chronic Pimephales promelas	SINGSAMP	report only	Jun, Dec
001	Static Renewal 7 Day Chronic Pimephales promelas	MN VALUE	report only	Jun, Dec
001	Static Renewal 7 Day Chronic Pimephales promelas	MN VALUE	>= 97 tox chronic	Jun, Dec
002	Temperature, water deg. centigrade	MX WK AV	report only	all year
002	Temperature, water deg. centigrade	DAILY MX	report only	all year
002	BOD, 5-day, 20 deg. C	30DA AVG	<= 30 mg/L	all year
002	BOD, 5-day, 20 deg. C	MX 7D AV	<= 45 mg/L	all year
002	pH	MINIMUM	>= 6.5 SU	all year
002	pH	MAXIMUM	<= 9 SU	all year
002	Solids, total suspended	30DA AVG	<= 30 mg/L	all year
002	Solids, total suspended	MX 7D AV	<= 45 mg/L	all year
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 8.9 mg/L	Jan
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 5.9 mg/L	Oct
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 6.8 mg/L	Nov
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 8 mg/L	Dec
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 8.8 mg/L	Feb
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 10.7 mg/L	Mar
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 10 mg/L	Apr
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 6.8 mg/L	May
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 6 mg/L	Jun
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 4.9 mg/L	Jul
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 4.7 mg/L	Aug
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 5.2 mg/L	Sep
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Jan
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Oct
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Nov
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Dec
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Feb
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Mar
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Apr
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	May
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Jun
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Jul
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Aug
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 30 mg/L	Sep
002	Nitrogen, inorganic total	DAILY MX	<= 10 mg/L	all year
002	Phosphorus, total [as P]	30DA AVG	<= .05 mg/L	all year
002	Cyanide, weak acid, dissociable	DAILY MX	<= 5 ug/L	all year
002	Chloride [as Cl]	30DA AVG	<= 240 mg/L	all year
002	Iron, total recoverable	30DA AVG	<= 27 ug/L	all year
002	Iron, total recoverable	30DA AVG	<= 40 ug/L	all year
002	Iron, dissolved [as Fe]	30DA AVG	<= 15 ug/L	all year
002	Iron, dissolved [as Fe]	30DA AVG	<= 40 ug/L	all year
002	Manganese, dissolved [as Mn]	30DA AVG	<= 20 ug/L	all year
002	Manganese, dissolved [as Mn]	30DA AVG	<= 33 ug/L	all year
002	Zinc, potentially dissolved	30DA AVG	<= 67 ug/L	all year
002	Zinc, potentially dissolved	30DA AVG	<= 96 ug/L	all year
002	Zinc, potentially dissolved	DAILY MX	report only	all year
002	Zinc, potentially dissolved	DAILY MX	report only	all year
002	Copper, potentially dissolved	30DA AVG	<= 16 ug/L	all year
002	Copper, potentially dissolved	30DA AVG	<= 18 ug/L	all year
002	Copper, potentially dissolved	DAILY MX	report only	all year
002	Copper, potentially dissolved	DAILY MX	report only	all year
002	Chromium, hexavalent potentially disolvd	30DA AVG	report only	all year
002	Chromium, hexavalent potentially disolvd	DAILY MX	report only	all year
002	Arsenic, potentially dissolved	DAILY MX	report only	all year
002	Lead, potentially dissolvd	30DA AVG	<= 5 ug/L	all year
002	Lead, potentially dissolvd	DAILY MX	report only	all year
002	Selenium, potentially dissolvd	30DA AVG	<= 3 ug/L	all year
002	Selenium, potentially dissolvd	DAILY MX	report only	all year
002	Oil and grease	INST MAX	<= 10 mg/L	all year
002	Chromium, trivalent total recoverable	DAILY MX	report only	all year
002	Flow, in conduit or thru treatment plant	30DA AVG	<= 2 MGD	all year
002	Flow, in conduit or thru treatment plant	30DA AVG	<= 2 MGD	all year
002	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
002	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
002	Chlorine, total residual	30DA AVG	<= .011 mg/L	all year
002	Chlorine, total residual	INST MAX	<= .019 mg/L	all year
002	E. coli	30DA AVG	<= 127 #/100mL	all year
002	E. coli	MX 7D AV	<= 254 #/100mL	all year
002	Nonylphenol	30DA AVG	report only	all year
002	Nonylphenol	30DA AVG	report only	all year
002	Nonylphenol	DAILY MX	report only	all year
002	Nonylphenol	DAILY MX	report only	all year
002	Mercury, total [as Hg]	30DA AVG	<= .0052 ug/L	all year
002	Mercury, total [as Hg]	30DA AVG	<= .0088 ug/L	all year
002	BOD, 5-day, percent removal	MO AV MN	>= 85 %	all year
002	Solids, suspended percent removal	MINIMUM	>= 85 %	all year
002	Sulfate	30DA AVG	<= 223 mg/L	all year
002	Oil and grease visual	INST MAX	report only	all year
002	Static Renewal 7 Day Chronic Ceriodaphnia dubia	SINGSAMP	report only	Jun, Dec
002	Static Renewal 7 Day Chronic Ceriodaphnia dubia	MN VALUE	report only	Jun, Dec
002	Static Renewal 7 Day Chronic Ceriodaphnia dubia	MN VALUE	>= 97 tox chronic	Jun, Dec
002	Static Renewal 7 Day Chronic Pimephales promelas	SINGSAMP	report only	Jun, Dec
002	Static Renewal 7 Day Chronic Pimephales promelas	MN VALUE	report only	Jun, Dec
002	Static Renewal 7 Day Chronic Pimephales promelas	MN VALUE	>= 97 tox chronic	Jun, Dec
300	Plant capacity fact. percent of capacity	30DA AVG	report only	all year
300	Plant capacity fact. percent of capacity	30DA AVG	report only	all year
300	BOD, 5-day, 20 deg. C	30DA AVG	report only	all year
300	BOD, 5-day, 20 deg. C	MX 7D AV	report only	all year
300	BOD, 5-day, 20 deg. C	30DA AVG	report only	all year
300	BOD, 5-day, 20 deg. C	MX 7D AV	report only	all year
300	Solids, total suspended	30DA AVG	report only	all year
300	Solids, total suspended	MX 7D AV	report only	all year
300	Flow, in conduit or thru treatment plant	30DA AVG	report only	all year
300	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year