CHICOPEE W P C F — NPDES permit MA0101508: limits, due date and EPA's record

NPDES permit MA0101508 · Major POTW · effective, expires 2027-01-31 · EPA's file as of 2026-09-19

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

Last period with anything received: 2026-08-31. Most often over: BOD, 5-day, 20 deg. C (20), Aluminum, total [as Al] (9), Solids, total suspended (6).

Reporting

Reports are due about 15 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (198)

Outfall	Parameter	Statistic	Limit	Months
003	Number of Events	MO TOTAL	report only	all year
003	Duration of discharge	MO TOTAL	report only	all year
003	Flow, total	MO TOTAL	report only	all year
004	Number of Events	MO TOTAL	report only	all year
004	Duration of discharge	MO TOTAL	report only	all year
004	Flow, total	MO TOTAL	report only	all year
005	Number of Events	MO TOTAL	report only	all year
005	Duration of discharge	MO TOTAL	report only	all year
005	Flow, total	MO TOTAL	report only	all year
007	BOD, 5-day, 20 deg. C	MO AVG	report only	Apr, Sep
007	BOD, 5-day, 20 deg. C	DAILY MX	report only	Apr, Sep
007	BOD, 5-day, 20 deg. C	MO AVG	report only	Apr, Sep
007	BOD, 5-day, 20 deg. C	DAILY MX	report only	Apr, Sep
007	pH	MINIMUM	report only	all year
007	pH	MAXIMUM	report only	all year
007	Solids, total suspended	MO AVG	report only	Apr, Sep
007	Solids, total suspended	DAILY MX	report only	Apr, Sep
007	Solids, total suspended	MO AVG	report only	Apr, Sep
007	Solids, total suspended	DAILY MX	report only	Apr, Sep
007	Nitrogen, total [as N]	MO AVG	report only	Apr, May, Jun, Jul, Aug, Sep
007	Nitrogen, total [as N]	MO AVG	report only	Apr, May, Jun, Jul, Aug, Sep
007	Nitrogen, ammonia total [as N]	MO AVG	report only	Apr, May, Jun, Jul, Aug, Sep
007	Nitrogen, ammonia total [as N]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep
007	Nitrogen, ammonia total [as N]	MO AVG	report only	Apr, May, Jun, Jul, Aug, Sep
007	Nitrogen, ammonia total [as N]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep
007	Nitrogen, nitrite total [as N]	MO AVG	report only	Apr, May, Jun, Jul, Aug, Sep
007	Nitrogen, nitrite total [as N]	MO AVG	report only	Apr, May, Jun, Jul, Aug, Sep
007	Nitrogen, nitrate total [as N]	MO AVG	report only	Apr, May, Jun, Jul, Aug, Sep
007	Nitrogen, nitrate total [as N]	MO AVG	report only	Apr, May, Jun, Jul, Aug, Sep
007	Nitrogen, Kjeldahl, total [as N]	MO AVG	report only	Apr, May, Jun, Jul, Aug, Sep
007	Nitrogen, Kjeldahl, total [as N]	MO AVG	report only	Apr, May, Jun, Jul, Aug, Sep
007	Hardness, total [as CaCO3]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep
007	Hardness, total [as CaCO3]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep
007	Cadmium, total [as Cd]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep
007	Cadmium, total [as Cd]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep
007	Copper, total [as Cu]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep
007	Copper, total [as Cu]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep
007	Lead, total [as Pb]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep
007	Lead, total [as Pb]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep
007	Nickel, total [as Ni]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep
007	Nickel, total [as Ni]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep
007	Zinc, total [as Zn]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep
007	Zinc, total [as Zn]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep
007	Aluminum, total [as Al]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep
007	Aluminum, total [as Al]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep
007	Chlorine, total residual	MO AVG	<= .89 mg/L	all year
007	Chlorine, total residual	DAILY MX	<= 1 mg/L	all year
007	E. coli	MO AVG	<= 126 CFU/100mL	all year
007	E. coli	DAILY MX	<= 409 CFU/100mL	all year
007	Number of Events	TOTAL	report only	all year
007	Number of Events	TOTAL	report only	all year
007	Duration of discharge	TOTAL	report only	all year
007	Duration of discharge	TOTAL	report only	all year
007	Flow, total	TOTAL	report only	all year
007	Flow, total	TOTAL	report only	all year
007	Flow, total	MAXIMUM	report only	all year
007	Flow, total	MAXIMUM	report only	all year
007	LC50 Static 48Hr Acute Pimephales promelas	MINIMUM	>= 100 %	Apr, May, Jun, Jul, Aug, Sep
008	Number of Events	MO TOTAL	report only	all year
008	Duration of discharge	MO TOTAL	report only	all year
008	Flow, total	MO TOTAL	report only	all year
009	Number of Events	MO TOTAL	report only	all year
009	Duration of discharge	MO TOTAL	report only	all year
009	Flow, total	MO TOTAL	report only	all year
010	Temperature, water deg. centigrade	DAILY MX	report only	all year
010	Flow rate	TOTAL	report only	all year
010	BOD, 5-day, 20 deg. C	MO AVG	<= 30 mg/L	all year
010	BOD, 5-day, 20 deg. C	WKLY AVG	<= 45 mg/L	all year
010	BOD, 5-day, 20 deg. C	DAILY MX	report only	all year
010	BOD, 5-day, 20 deg. C	MO AVG	<= 3878 lb/d	all year
010	BOD, 5-day, 20 deg. C	WKLY AVG	<= 5817 lb/d	all year
010	BOD, 5-day, 20 deg. C	MO AVG	report only	all year
010	BOD, 5-day, 20 deg. C	DAILY MX	report only	all year
010	BOD, 5-day, 20 deg. C	MO AVG	report only	all year
010	BOD, 5-day, 20 deg. C	WKLY AVG	report only	all year
010	BOD, 5-day, 20 deg. C	MO AVG	report only	all year
010	BOD, 5-day, 20 deg. C	DAILY MX	report only	all year
010	pH	MINIMUM	>= 6 SU	all year
010	pH	MAXIMUM	<= 8.3 SU	all year
010	pH	MINIMUM	report only	all year
010	pH	MA	report only	all year
010	pH	MAXIMUM	report only	all year
010	Solids, total suspended	MO AVG	<= 30 mg/L	all year
010	Solids, total suspended	WKLY AVG	<= 45 mg/L	all year
010	Solids, total suspended	DAILY MX	report only	all year
010	Solids, total suspended	MO AVG	<= 3878 lb/d	all year
010	Solids, total suspended	WKLY AVG	<= 5817 lb/d	all year
010	Solids, total suspended	MO AVG	report only	all year
010	Solids, total suspended	DAILY MX	report only	all year
010	Solids, total suspended	MO AVG	report only	all year
010	Solids, total suspended	MO AVG	report only	all year
010	Solids, total suspended	DAILY MX	report only	all year
010	Nitrogen, total [as N]	MO AVG	report only	all year
010	Nitrogen, total [as N]	MO AVG	report only	all year
010	Nitrogen, total [as N]	DAILY MX	report only	all year
010	Nitrogen, total [as N]	DAILY MX	report only	all year
010	Nitrogen, total [as N]	MO AVG	report only	all year
010	Nitrogen, total [as N]	MO AVG	report only	all year
010	Nitrogen, total [as N]	DAILY MX	report only	all year
010	Nitrogen, total [as N]	DAILY MX	report only	all year
010	Nitrogen, total [as N]	ROLL AVG	<= 647 lb/d	all year
010	Nitrogen, total [as N]	ROLL AVG	report only	all year
010	Ammonia nitrogen, total, [as N] 30 day	DAILY MX	report only	all year
010	Nitrogen, ammonia total [as N]	MO AVG	report only	all year
010	Nitrogen, ammonia total [as N]	WKLY AVG	report only	all year
010	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
010	Nitrogen, ammonia total [as N]	DAILY MX	report only	all year
010	Nitrogen, ammonia total [as N]	MO AVG	report only	all year
010	Nitrogen, ammonia total [as N]	WKLY AVG	report only	all year
010	Nitrogen, Kjeldahl, total [as N]	MO AVG	report only	all year
010	Nitrogen, Kjeldahl, total [as N]	DAILY MX	report only	all year
010	Nitrite + Nitrate total [as N]	MO AVG	report only	all year
010	Nitrite + Nitrate total [as N]	DAILY MX	report only	all year
010	Phosphorus, total [as P]	MO AVG	report only	Apr, May, Jun, Jul, Aug, Sep, Oct
010	Phosphorus, total [as P]	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep, Oct
010	Carbon, tot organic [TOC]	DAILY MX	report only	all year
010	Carbon, tot organic [TOC]	DAILY MX	report only	all year
010	Carbon, dissolved organic [as C]	DAILY MX	report only	all year
010	Carbon, dissolved organic [as C]	DAILY MX	report only	all year
010	Hardness, total [as CaCO3]	DAILY MX	report only	all year
010	Hardness, total [as CaCO3]	DAILY MX	report only	all year
010	Cadmium, total [as Cd]	DAILY MX	report only	all year
010	Cadmium, total [as Cd]	DAILY MX	report only	all year
010	Copper, total [as Cu]	DAILY MX	report only	all year
010	Copper, total [as Cu]	DAILY MX	report only	all year
010	Lead, total [as Pb]	DAILY MX	report only	all year
010	Lead, total [as Pb]	DAILY MX	report only	all year
010	Nickel, total [as Ni]	DAILY MX	report only	all year
010	Nickel, total [as Ni]	DAILY MX	report only	all year
010	Zinc, total [as Zn]	DAILY MX	report only	all year
010	Zinc, total [as Zn]	DAILY MX	report only	all year
010	Aluminum, total [as Al]	MO AVG	<= 87 ug/L	all year
010	Aluminum, total [as Al]	DAILY MX	report only	all year
010	Aluminum, total [as Al]	DAILY MX	report only	all year
010	Aluminum, total [as Al]	DAILY MX	report only	all year
010	Rainfall	TOTAL	report only	all year
010	Duration	TOTAL	report only	all year
010	Duration	TOTAL	report only	all year
010	Flow, in conduit or thru treatment plant	TOTAL	report only	all year
010	Flow, in conduit or thru treatment plant	ROLL AVG	<= 15.5 MGD	all year
010	Flow, in conduit or thru treatment plant	TOTAL	report only	all year
010	Flow, in conduit or thru treatment plant	MO AVG	report only	all year
010	Flow, in conduit or thru treatment plant	DAILY MX	report only	all year
010	Chlorine, total residual	MO AVG	<= .89 mg/L	all year
010	Chlorine, total residual	DAILY MX	<= 1 mg/L	all year
010	Chlorine, total residual	MO AVG	report only	all year
010	Chlorine, total residual	DAILY MX	report only	all year
010	E. coli	MO GEO	<= 126 CFU/100mL	Apr, May, Jun, Jul, Aug, Sep, Oct
010	E. coli	MO GEO	report only	Apr, May, Jun, Jul, Aug, Sep, Oct
010	E. coli	DAILY MX	<= 409 CFU/100mL	Apr, May, Jun, Jul, Aug, Sep, Oct
010	E. coli	DAILY MX	report only	Apr, May, Jun, Jul, Aug, Sep, Oct
010	Number of Events	TOTAL	report only	all year
010	LC50 Static 48Hr Acute Pimephales promelas	MO AV MN	>= 100 %	all year
024	Number of Events	MO TOTAL	report only	all year
024	Duration of discharge	MO TOTAL	report only	all year
024	Flow, total	MO TOTAL	report only	all year
026	Number of Events	MO TOTAL	report only	all year
026	Duration of discharge	MO TOTAL	report only	all year
026	Flow, total	MO TOTAL	report only	all year
027	Number of Events	MO TOTAL	report only	all year
027	Duration of discharge	MO TOTAL	report only	all year
027	Flow, total	MO TOTAL	report only	all year
034	Number of Events	MO TOTAL	report only	all year
034	Duration of discharge	MO TOTAL	report only	all year
034	Flow, total	MO TOTAL	report only	all year
037	Number of Events	MO TOTAL	report only	all year
037	Duration of discharge	MO TOTAL	report only	all year
037	Flow, total	MO TOTAL	report only	all year
040	Number of Events	MO TOTAL	report only	all year
040	Duration of discharge	MO TOTAL	report only	all year
040	Flow, total	MO TOTAL	report only	all year
042	Number of Events	MO TOTAL	report only	all year
042	Duration of discharge	MO TOTAL	report only	all year
042	Flow, total	MO TOTAL	report only	all year
32A	Number of Events	MO TOTAL	report only	all year
32A	Duration of discharge	MO TOTAL	report only	all year
32A	Flow, total	MO TOTAL	report only	all year
32B	Number of Events	MO TOTAL	report only	all year
32B	Duration of discharge	MO TOTAL	report only	all year
32B	Flow, total	MO TOTAL	report only	all year
PFAS	Perfluorooctanoic acid (PFOA)	DAILY MX	report only	all year
PFAS	Perfluorooctanoic acid (PFOA)	DAILY MX	report only	all year
PFAS	Perfluorooctanoic acid (PFOA)	DAILY MX	report only	all year
PFAS	Perfluorooctanesulfonate	DAILY MX	report only	all year
PFAS	Perfluorooctanesulfonate	DAILY MX	report only	all year
PFAS	Perfluoroheptanoic acid (PFHpA)	DAILY MX	report only	all year
PFAS	Perfluoroheptanoic acid (PFHpA)	DAILY MX	report only	all year
PFAS	Perfluoroheptanoic acid (PFHpA)	DAILY MX	report only	all year
PFAS	Perfluorononanoic acid (PFNA)	DAILY MX	report only	all year
PFAS	Perfluorodecanoic acid (PFDA)	DAILY MX	report only	all year
PFAS	Perfluorodecanoic acid (PFDA)	DAILY MX	report only	all year
PFAS	Perfluorodecanoic acid (PFDA)	DAILY MX	report only	all year
PFAS	Perfluorohexanesulfonic acid (PFHxS)	DAILY MX	report only	all year
PFAS	Perfluorohexanesulfonic acid (PFHxS)	DAILY MX	report only	all year
PFAS	Perfluorohexanesulfonic acid (PFHxS)	DAILY MX	report only	all year
PFAS	Perfluorooctanesulfonic acid (PFOS)	DAILY MX	report only	all year
PFAS	Perfluorooctanesulfonic acid (PFOS)	DAILY MX	report only	all year
PFAS	Perfluorooctanesulfonic acid (PFOS)	DAILY MX	report only	all year