Canton, City of — NPDES permit SD0022489: limits, due date and EPA's record

NPDES permit SD0022489 · Minor POTW · administratively continued, expires 2023-12-31 · EPA's file as of 2026-09-19

This permit expired on 2023-12-31 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

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 (81)

Outfall	Parameter	Statistic	Limit	Months
002	Temperature, water deg. centigrade	30DA AVG	report only	all year
002	Temperature, water deg. centigrade	DAILY MX	report only	all year
002	Flow rate	30DA AVG	report only	all year
002	Flow rate	DAILY MX	report only	all year
002	BOD, 5-day, 20 deg. C	30DA AVG	report only	all year
002	BOD, 5-day, 20 deg. C	MX 7D AV	report only	all year
002	BOD, 5-day, 20 deg. C	30DA AVG	<= 465 lb/d	all year
002	BOD, 5-day, 20 deg. C	MX 7D AV	<= 698 lb/d	all year
002	pH	DAILY MN	>= 6.5 SU	all year
002	pH	DAILY MX	<= 9 SU	all year
002	Solids, total suspended	30DA AVG	report only	all year
002	Solids, total suspended	MX 7D AV	report only	all year
002	Solids, total suspended	30DA AVG	<= 1241 lb/d	all year
002	Solids, total suspended	MX 7D AV	<= 1862 lb/d	all year
002	Nitrogen, ammonia total [as N]	30DA AVG	report only	all year
002	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 278 lb/d	Apr
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 278 lb/d	Feb
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 350 lb/d	Jan
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 278 lb/d	May
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 82 lb/d	Jun
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 43 lb/d	Jul
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 40 lb/d	Aug
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 169 lb/d	Mar
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 460 lb/d	Dec
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 39 lb/d	Sep
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 104 lb/d	Oct
002	Nitrogen, ammonia total [as N]	30DA AVG	<= 416 lb/d	Nov
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 494 lb/d	Apr
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 621 lb/d	Feb
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 679 lb/d	Jan
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 494 lb/d	May
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 149 lb/d	Jun
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 149 lb/d	Jul
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 149 lb/d	Aug
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 860 lb/d	Mar
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 862 lb/d	Dec
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 185 lb/d	Sep
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 185 lb/d	Oct
002	Nitrogen, ammonia total [as N]	DAILY MX	<= 858 lb/d	Nov
002	Cyanide, weak acid, dissociable	DAILY MX	report only	all year
002	Cyanide, weak acid, dissociable	DAILY MX	report only	all year
002	Cyanide, total [as CN]	DAILY MX	report only	all year
002	Cyanide, total [as CN]	DAILY MX	report only	all year
002	Arsenic, total [as As]	DAILY MX	report only	all year
002	Arsenic, total [as As]	DAILY MX	report only	all year
002	Beryllium, total [as Be]	DAILY MX	report only	all year
002	Beryllium, total [as Be]	DAILY MX	report only	all year
002	Cadmium, total [as Cd]	DAILY MX	report only	all year
002	Cadmium, total [as Cd]	DAILY MX	report only	all year
002	Chromium, total [as Cr]	DAILY MX	report only	all year
002	Chromium, total [as Cr]	DAILY MX	report only	all year
002	Copper, total [as Cu]	DAILY MX	report only	all year
002	Copper, total [as Cu]	DAILY MX	report only	all year
002	Lead, total [as Pb]	DAILY MX	report only	all year
002	Lead, total [as Pb]	DAILY MX	report only	all year
002	Thallium, total [as Tl]	DAILY MX	report only	all year
002	Thallium, total [as Tl]	DAILY MX	report only	all year
002	Molybdenum, total [as Mo]	DAILY MX	report only	all year
002	Molybdenum, total [as Mo]	DAILY MX	report only	all year
002	Nickel, total [as Ni]	DAILY MX	report only	all year
002	Nickel, total [as Ni]	DAILY MX	report only	all year
002	Silver, total [as Ag]	DAILY MX	report only	all year
002	Silver, total [as Ag]	DAILY MX	report only	all year
002	Zinc, total [as Zn]	DAILY MX	report only	all year
002	Zinc, total [as Zn]	DAILY MX	report only	all year
002	Antimony, total [as Sb]	DAILY MX	report only	all year
002	Antimony, total [as Sb]	DAILY MX	report only	all year
002	Selenium, total [as Se]	DAILY MX	report only	all year
002	Selenium, total [as Se]	DAILY MX	report only	all year
002	Phenols	DAILY MX	report only	all year
002	Phenols	DAILY MX	report only	all year
002	Chlorine, total residual	DAILY MX	<= .019 mg/L	all year
002	E. coli, colony forming units [CFU]	30DA GEO	<= 126 #/100mL	Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002	E. coli, colony forming units [CFU]	DAILY MX	<= 235 #/100mL	Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
002	Flow, total	MO TOTAL	report only	all year
002	Toxicity [acute], Ceriodaphnia dubia	DAILY MX	report only	all year
002	Toxicity [acute], Pimephales promelas [Fathead Minnow]	DAILY MX	report only	all year
002	Mercury, total [as Hg]	DAILY MX	report only	all year
002	Mercury, total [as Hg]	DAILY MX	report only	all year
002	Duration of discharge	MO TOTAL	report only	all year